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3A859822303.jsonld | ['Mapping of quantitative trait loci regulating nitrogen stress tolerance and leaf rust seedling resistance in two selected populations derived from crosses between exotic and elite barley : [kumulative Dissertation]'] | [["One aim of modern plant breeding research is to introduce favorable exotic alleles from wild barley into cultivated barley, as this provides multiple desired characteristics. Most of these traits (e.g. yield) are complex and determined through multiple genes. Such genes are represented through quantitative trait loci (QTL) that are mapped molecularly. Under this theme multiple traits were mapped in barley in the present study. The first mapping population was the introgression line population 'S42IL' (with two N levels: stress and conventional condition), the second one was the pre-NAM population 'HEB-5' (nested association mapping). In both populations QTL were detected where exotic alleles were associated with favorable trait characteristics. The QTL lay in so far unknown as well as in already known genomic regions.", "Ein Ziel der modernen Pflanzenzüchtungsforschung ist es, vorteilhafte exotische Allele aus Wildgerste in Kulturgerste zu übertragen, da diese mehrere gewünschte Eigenschaften bereitstellt. Die meisten dieser Merkmale (z.B. Ertrag) sind komplex und durch viele Gene bestimmt. Solche Gene werden durch quantitative Merkmalsloci (engl.: quantitative trait loci, QTL) repräsentiert, die molekular kartiert werden. Basierend darauf wurden in der vorliegenden Arbeit QTL für verschiedene Merkmale in Gerste kartiert. Die erste Kartierungspopulation war die Introgressionslinienpopulation 'S42IL' (mit zwei N-Stufen: Stress- und Normalbedingung), die zweite war die prä-NAM-Population 'HEB-5' (genestete Assoziationskartierung). In beiden Populationen wurden QTL detektiert, bei denen die exotischen Allele mit vorteilhaften Merkmalseigenschaften assoziiert waren. Die QTL lagen sowohl in bisher unbekannten als auch in bereits bekannten Genomregionen.", 'genetische Diversität; Kulturgerste; Wildgerste; QTL-Kartierung; Introgressionslinie; genestete Assoziationskartierung (NAM); multiparental; N-Streß', 'genetic diversity; cultivated barley; exotic barley; QTL mapping; introgression line; nested association mapping (NAM); multiparental; N stress']] | ['gnd:2024276-1', 'gnd:4123274-4', 'gnd:4156898-9', 'gnd:4157211-7', 'gnd:4264352-1', 'gnd:4278804-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859822303'] | ['Martin-Luther-Universität Halle-Wittenberg', 'Genkartierung', 'Gerste', 'Getreidezüchtung', 'Genetische Variabilität', 'Wildgerste'] | Document
### Title: ['Mapping of quantitative trait loci regulating nitrogen stress tolerance and leaf rust seedling resistance in two selected populations derived from crosses between exotic and elite barley : [kumulative Dissertation]']
### Abstract:
[["One aim of modern plant breeding research is to introduce favorable exotic alleles from wild barley into cultivated barley, as this provides multiple desired characteristics. Most of these traits (e.g. yield) are complex and determined through multiple genes. Such genes are represented through quantitative trait loci (QTL) that are mapped molecularly. Under this theme multiple traits were mapped in barley in the present study. The first mapping population was the introgression line population 'S42IL' (with two N levels: stress and conventional condition), the second one was the pre-NAM population 'HEB-5' (nested association mapping). In both populations QTL were detected where exotic alleles were associated with favorable trait characteristics. The QTL lay in so far unknown as well as in already known genomic regions.", "Ein Ziel der modernen Pflanzenzüchtungsforschung ist es, vorteilhafte exotische Allele aus Wildgerste in Kulturgerste zu übertragen, da diese mehrere gewünschte Eigenschaften bereitstellt. Die meisten dieser Merkmale (z.B. Ertrag) sind komplex und durch viele Gene bestimmt. Solche Gene werden durch quantitative Merkmalsloci (engl.: quantitative trait loci, QTL) repräsentiert, die molekular kartiert werden. Basierend darauf wurden in der vorliegenden Arbeit QTL für verschiedene Merkmale in Gerste kartiert. Die erste Kartierungspopulation war die Introgressionslinienpopulation 'S42IL' (mit zwei N-Stufen: Stress- und Normalbedingung), die zweite war die prä-NAM-Population 'HEB-5' (genestete Assoziationskartierung). In beiden Populationen wurden QTL detektiert, bei denen die exotischen Allele mit vorteilhaften Merkmalseigenschaften assoziiert waren. Die QTL lagen sowohl in bisher unbekannten als auch in bereits bekannten Genomregionen.", 'genetische Diversität; Kulturgerste; Wildgerste; QTL-Kartierung; Introgressionslinie; genestete Assoziationskartierung (NAM); multiparental; N-Streß', 'genetic diversity; cultivated barley; exotic barley; QTL mapping; introgression line; nested association mapping (NAM); multiparental; N stress']]
### GND ID:
['gnd:2024276-1', 'gnd:4123274-4', 'gnd:4156898-9', 'gnd:4157211-7', 'gnd:4264352-1', 'gnd:4278804-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859822303']
### GND class:
['Martin-Luther-Universität Halle-Wittenberg', 'Genkartierung', 'Gerste', 'Getreidezüchtung', 'Genetische Variabilität', 'Wildgerste']
<|eot_id|> |
3A859932508.jsonld | ['Facies and aquifer characterization of the German triassic Buntsandstein in central Germany'] | ['The Lower Triassic Buntsandstein in the Hesse Trough and in the Thuringian Syncline is a major aquifer in Thuringia and adjacent areas. The depositional system is characterized by a playa-lake to lake setting with some aeolian phases in the Lower Buntsandstein and fluvial, sandflat, and lacustrine to aeolian deposits in the Middle Buntsandstein. The aim of the study is to understand the influence of small-scale facies heterogeneities on fluid-flow pathways. For this purpose Lithofacies Types and Associations in outcrops and cores were studied and statistically characterized, with special emphasis on the thickness, depth and width ratios of architectural elements as well as of inclination and orientation of bounding surfaces. To predict aquifer qualities, the spatial distribution and connectivity in relation to variations in petrophysical properties (porosity and permeability) were studied. With the exception of aeolian deposits, especially Facies Associations with poor petrophysical properties have a wide lateral distribution. This indicates that potential barriers, while thin, show a wider lateral continuity than potential aquifers. Based on this dataset small-scale generic 3D-models of different depositional environments were developed, and fluid flow pathways with regard to the sedimentary structures were modelled. Results show that sedimentary structures influence the fluid flow only in the case of high differences in permeability, e.g. in sand layers intercalated in muds. Minor permeability differences within sedimentary units only slow down fluid flow, but do not cause deviations from the flow direction.'] | ['gnd:1095255878', 'gnd:36164-1', 'gnd:4016568-1', 'gnd:4022375-9', 'gnd:4180608-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859932508'] | ['Kunkel, Cindy', 'Friedrich-Schiller-Universität Jena', 'Fazies', 'Grundwasserleiter', 'Sedimentanalyse'] | Document
### Title: ['Facies and aquifer characterization of the German triassic Buntsandstein in central Germany']
### Abstract:
['The Lower Triassic Buntsandstein in the Hesse Trough and in the Thuringian Syncline is a major aquifer in Thuringia and adjacent areas. The depositional system is characterized by a playa-lake to lake setting with some aeolian phases in the Lower Buntsandstein and fluvial, sandflat, and lacustrine to aeolian deposits in the Middle Buntsandstein. The aim of the study is to understand the influence of small-scale facies heterogeneities on fluid-flow pathways. For this purpose Lithofacies Types and Associations in outcrops and cores were studied and statistically characterized, with special emphasis on the thickness, depth and width ratios of architectural elements as well as of inclination and orientation of bounding surfaces. To predict aquifer qualities, the spatial distribution and connectivity in relation to variations in petrophysical properties (porosity and permeability) were studied. With the exception of aeolian deposits, especially Facies Associations with poor petrophysical properties have a wide lateral distribution. This indicates that potential barriers, while thin, show a wider lateral continuity than potential aquifers. Based on this dataset small-scale generic 3D-models of different depositional environments were developed, and fluid flow pathways with regard to the sedimentary structures were modelled. Results show that sedimentary structures influence the fluid flow only in the case of high differences in permeability, e.g. in sand layers intercalated in muds. Minor permeability differences within sedimentary units only slow down fluid flow, but do not cause deviations from the flow direction.']
### GND ID:
['gnd:1095255878', 'gnd:36164-1', 'gnd:4016568-1', 'gnd:4022375-9', 'gnd:4180608-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859932508']
### GND class:
['Kunkel, Cindy', 'Friedrich-Schiller-Universität Jena', 'Fazies', 'Grundwasserleiter', 'Sedimentanalyse']
<|eot_id|> |
3A859935043.jsonld | ['Improving dwellers participation in the development of flood resilient cities'] | [['Following the requirements of the (urban) flood risk management-FRM (e.g. 2007/60/EC), the dwellers should become involved in the development of flood resilient cities, however they are in general case not empowered for this task. This calls for the development of methods and tools to improve their engagement. Within this work the methods and tools have been developed that address the decision making process on the resilient built environment and empower the dwellers to actively take their role in FRM and protect their homes. The obtained results indicate a strong need to analyse the dwellers and the built environment as the constitutive elements of a multiscale urban system and aim at the combined application the decision making and the capacity building methods.', 'Bezugnehmend auf die Anforderungen des Hochwasserrisikomanagements-HWRM (z.B. 2007/60/EC), sollten die Anwohner eine aktive Rolle übernehmen. Allerdings sind im Regelfall weder die Bereitschaft noch das Wissen vorhanden um diese Aufgabe zu leisten. Im Rahmen dieser Arbeit wurden die Methoden und Werkzeuge entwickelt und getestet, die einen Beitrag zum Kapazitätsaufbau von Anwohnern leisten und allgemein die Resilienz von Städten fördern. Die Ergebnisse deuten daraufhin, dass die Anwohner und die Bebauung als Bestandteile des multiskaligen urbanen Systems betrachtet werden sollten. Die Methoden zur Entscheidungsunterstützung und zum Kapazitätsaufbau von Anwohnern sollten holistisch entwickelt und umgesetzt werden.']] | ['gnd:10194617-X', 'gnd:1108568327', 'gnd:1140854437', 'gnd:4025289-9', 'gnd:4044789-3', 'gnd:4056723-0', 'gnd:4121590-4', 'gnd:4458086-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859935043'] | ['Technische Universität Hamburg-Harburg, Institut für Wasserbau', 'Manojlovič, Nataša', 'Fröhle, Peter', 'Hochwasser', 'Partizipation', 'Stadt', 'Risikomanagement', 'Anwohner'] | Document
### Title: ['Improving dwellers participation in the development of flood resilient cities']
### Abstract:
[['Following the requirements of the (urban) flood risk management-FRM (e.g. 2007/60/EC), the dwellers should become involved in the development of flood resilient cities, however they are in general case not empowered for this task. This calls for the development of methods and tools to improve their engagement. Within this work the methods and tools have been developed that address the decision making process on the resilient built environment and empower the dwellers to actively take their role in FRM and protect their homes. The obtained results indicate a strong need to analyse the dwellers and the built environment as the constitutive elements of a multiscale urban system and aim at the combined application the decision making and the capacity building methods.', 'Bezugnehmend auf die Anforderungen des Hochwasserrisikomanagements-HWRM (z.B. 2007/60/EC), sollten die Anwohner eine aktive Rolle übernehmen. Allerdings sind im Regelfall weder die Bereitschaft noch das Wissen vorhanden um diese Aufgabe zu leisten. Im Rahmen dieser Arbeit wurden die Methoden und Werkzeuge entwickelt und getestet, die einen Beitrag zum Kapazitätsaufbau von Anwohnern leisten und allgemein die Resilienz von Städten fördern. Die Ergebnisse deuten daraufhin, dass die Anwohner und die Bebauung als Bestandteile des multiskaligen urbanen Systems betrachtet werden sollten. Die Methoden zur Entscheidungsunterstützung und zum Kapazitätsaufbau von Anwohnern sollten holistisch entwickelt und umgesetzt werden.']]
### GND ID:
['gnd:10194617-X', 'gnd:1108568327', 'gnd:1140854437', 'gnd:4025289-9', 'gnd:4044789-3', 'gnd:4056723-0', 'gnd:4121590-4', 'gnd:4458086-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859935043']
### GND class:
['Technische Universität Hamburg-Harburg, Institut für Wasserbau', 'Manojlovič, Nataša', 'Fröhle, Peter', 'Hochwasser', 'Partizipation', 'Stadt', 'Risikomanagement', 'Anwohner']
<|eot_id|> |
3A859942473.jsonld | ['Perfektkonstruktionen mit "haben" und "sein" : eine Korpusuntersuchung im Althochdeutschen, Altsächsischen und Neuhochdeutschen'] | ['"This study examines German perfect constructions from a usage-based perspective by carrying out a meticulous empirical investigation in two time frames. It analyzes all perfect tense forms in major early Old High German and Old Saxon textual monuments and their degree of grammaticalization. Then, by means of an extensive corpus examination, it shows the schemata behind contemporary German helper-verb selection in the perfect tense."--'] | ['gnd:1024212076', 'gnd:1065653190', 'gnd:132228629', 'gnd:4001523-3', 'gnd:4022713-3', 'gnd:4054329-8', 'gnd:4113292-0', 'gnd:4120131-0', 'gnd:4165097-9', 'gnd:4173734-9', 'gnd:4277030-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859942473'] | ['Gillmann, Melitta', 'De Gruyter Mouton', 'Szczepaniak, Renata', 'Althochdeutsch', 'Haben', 'Sein', 'Deutsch', 'Altsächsisch', 'Konstruktion (Linguistik)', 'Perfekt', 'Grammatikalisation'] | Document
### Title: ['Perfektkonstruktionen mit "haben" und "sein" : eine Korpusuntersuchung im Althochdeutschen, Altsächsischen und Neuhochdeutschen']
### Abstract:
['"This study examines German perfect constructions from a usage-based perspective by carrying out a meticulous empirical investigation in two time frames. It analyzes all perfect tense forms in major early Old High German and Old Saxon textual monuments and their degree of grammaticalization. Then, by means of an extensive corpus examination, it shows the schemata behind contemporary German helper-verb selection in the perfect tense."--']
### GND ID:
['gnd:1024212076', 'gnd:1065653190', 'gnd:132228629', 'gnd:4001523-3', 'gnd:4022713-3', 'gnd:4054329-8', 'gnd:4113292-0', 'gnd:4120131-0', 'gnd:4165097-9', 'gnd:4173734-9', 'gnd:4277030-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859942473']
### GND class:
['Gillmann, Melitta', 'De Gruyter Mouton', 'Szczepaniak, Renata', 'Althochdeutsch', 'Haben', 'Sein', 'Deutsch', 'Altsächsisch', 'Konstruktion (Linguistik)', 'Perfekt', 'Grammatikalisation']
<|eot_id|> |
3A859944468.jsonld | ['Jüdisches Schulwesen zwischen Tradition und Moderne : die Hascharath Zwi Schule in Halberstadt (1796-1942)'] | [['"This study on the history of German-Jewish education traces the impact of the Hazkarat Zebi School in Halberstadt, the only private Jewish elementary school in the former province of Saxony. The school followed the pioneering concepts of its founder, Hirsch Isaac Borchert, and its history reveals a unique commitment to reconciling religious tradition with attempts at modernization"--', '"In dieser Untersuchung zur deutsch-jüdischen Bildungsgeschichte wird die Wirkungsgeschichte der Hascharath Zwi Schule in Halberstadt rekonstruiert, der einzigen privaten jüdischen Elementarschule der ehemaligen Provinz Sachsen. Das wegweisende Schulkonzept ihres Gründers Hirsch Isaac Borchert bestand in der Vermittlung religiöser und weltlicher Bildung und spiegelt im Zeitalter von Emanzipation und Akkulturation das Streben nach Bildung und gesellschaftlichem Aufstieg wider. Berücksichtigung fanden hierbei sowohl innerjüdische und lokalspezifische Entwicklungen wie auch die im 19. Jahrhundert eingeleiteten staatlichen Massnahmen im jüdischen Bildungswesen. Die Studie verdeutlicht darüber hinaus das kooperative Verhältnis zwischen staatlicher Schulbehörde und privater Bildungseinrichtung und zeigt das besondere Engagement und die Entschlossenheit der Akteure, religiose Traditionen mit den Modernisierungsbestrebungen im jüdischen Schul- und Erziehungswesen in Einklang zu bringen"--']] | ['gnd:1134983336', 'gnd:4006681-2', 'gnd:4022987-7', 'gnd:4053474-1', 'gnd:4114087-4', 'gnd:4332674-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859944468'] | ['Reupke, Beate', 'Bildungswesen', 'Halberstadt', 'Schule', 'Judentum', 'Jüdische Schule'] | Document
### Title: ['Jüdisches Schulwesen zwischen Tradition und Moderne : die Hascharath Zwi Schule in Halberstadt (1796-1942)']
### Abstract:
[['"This study on the history of German-Jewish education traces the impact of the Hazkarat Zebi School in Halberstadt, the only private Jewish elementary school in the former province of Saxony. The school followed the pioneering concepts of its founder, Hirsch Isaac Borchert, and its history reveals a unique commitment to reconciling religious tradition with attempts at modernization"--', '"In dieser Untersuchung zur deutsch-jüdischen Bildungsgeschichte wird die Wirkungsgeschichte der Hascharath Zwi Schule in Halberstadt rekonstruiert, der einzigen privaten jüdischen Elementarschule der ehemaligen Provinz Sachsen. Das wegweisende Schulkonzept ihres Gründers Hirsch Isaac Borchert bestand in der Vermittlung religiöser und weltlicher Bildung und spiegelt im Zeitalter von Emanzipation und Akkulturation das Streben nach Bildung und gesellschaftlichem Aufstieg wider. Berücksichtigung fanden hierbei sowohl innerjüdische und lokalspezifische Entwicklungen wie auch die im 19. Jahrhundert eingeleiteten staatlichen Massnahmen im jüdischen Bildungswesen. Die Studie verdeutlicht darüber hinaus das kooperative Verhältnis zwischen staatlicher Schulbehörde und privater Bildungseinrichtung und zeigt das besondere Engagement und die Entschlossenheit der Akteure, religiose Traditionen mit den Modernisierungsbestrebungen im jüdischen Schul- und Erziehungswesen in Einklang zu bringen"--']]
### GND ID:
['gnd:1134983336', 'gnd:4006681-2', 'gnd:4022987-7', 'gnd:4053474-1', 'gnd:4114087-4', 'gnd:4332674-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A859944468']
### GND class:
['Reupke, Beate', 'Bildungswesen', 'Halberstadt', 'Schule', 'Judentum', 'Jüdische Schule']
<|eot_id|> |
3A85997202X.jsonld | ['CPPI strategies and the problem of long-term guarantees'] | [['Due to the incomplete downside-risk protection possessed by portfolio insurance strategies, we are particularly interested in one of the most classical ones: Constant Proportion Portfolio Insurance (CPPI), and the consequential risk its issuers confront with based on the unfulfilled guarantee. In the thesis we propose a new model for the risky asset dynamic concerning the gap risk, and further loosen the traditional restriction in the CPPI strategies with regard to the non-risky asset, which is constantly assumed to evolve with riskfree rate. The cushion dynamic is under the new framework driven by a bivariate Levy process. The solution to the stochastic differential equation is a generalized Ornstein-Uhlenbeck process, with which we derive explicitly the risk measures through stochastic integration. Empirical results are provided in the end of the thesis. We compare the simulation outcome from the new model with well-known ones, along with their performances inside the CPPI portfolio. <engl.>', 'Verschiedene Portfolio Insurance Strategien weisen eine unvollständige Absicherung gegenüber dem Downside-Risiko auf. Hier wird die Constant Proportion Portfolio Insurance-(CPPI-)Strategie untersucht, vor allem im Hinblick auf das resultierende Risiko für die Emittenten, das aus nicht erfüllten Garantien entsteht. In dieser Dissertation stellen wir ein neues Modell für die riskante Dynamik von Assets vor, welches auch Gap-Risiko berücksichtigt und außerdem lockern wir die Einschränkung der CPPI-Strategien für nicht-riskante Assets, grundsätzlich eine Asset-Entwicklung mit risikolosem Zinssatz anzunehmen. Nach diesem neuen Ansatz wird die Cushion-Dynamik von einem bivariaten Levy-Prozess gesteuert. Die Lösung der zugehörigen SDE ist ein verallgemeinerter Ornstein-Uhlenbeck-Prozess. Daher leiten wir die Risikomaße mit stochastischer Integration her. Am Ende dieser Dissertation werden empirische Ergebnisse dargestellt, in den wir das neue Modell mit den bekannten Modellen vergleichen. <dt.>']] | ['gnd:141482370', 'gnd:4137042-9', 'gnd:4147574-4', 'gnd:4406694-6', 'gnd:4716345-8', 'gnd:4845858-2', 'gnd:7623854-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A85997202X'] | ['Pfeifer, Dietmar', 'Risikoanalyse', 'Charakteristische Funktion', 'Portfolio Insurance', 'Risikomaß', 'Ornstein-Uhlenbeck-Prozess', 'Gap-Analyse'] | Document
### Title: ['CPPI strategies and the problem of long-term guarantees']
### Abstract:
[['Due to the incomplete downside-risk protection possessed by portfolio insurance strategies, we are particularly interested in one of the most classical ones: Constant Proportion Portfolio Insurance (CPPI), and the consequential risk its issuers confront with based on the unfulfilled guarantee. In the thesis we propose a new model for the risky asset dynamic concerning the gap risk, and further loosen the traditional restriction in the CPPI strategies with regard to the non-risky asset, which is constantly assumed to evolve with riskfree rate. The cushion dynamic is under the new framework driven by a bivariate Levy process. The solution to the stochastic differential equation is a generalized Ornstein-Uhlenbeck process, with which we derive explicitly the risk measures through stochastic integration. Empirical results are provided in the end of the thesis. We compare the simulation outcome from the new model with well-known ones, along with their performances inside the CPPI portfolio. <engl.>', 'Verschiedene Portfolio Insurance Strategien weisen eine unvollständige Absicherung gegenüber dem Downside-Risiko auf. Hier wird die Constant Proportion Portfolio Insurance-(CPPI-)Strategie untersucht, vor allem im Hinblick auf das resultierende Risiko für die Emittenten, das aus nicht erfüllten Garantien entsteht. In dieser Dissertation stellen wir ein neues Modell für die riskante Dynamik von Assets vor, welches auch Gap-Risiko berücksichtigt und außerdem lockern wir die Einschränkung der CPPI-Strategien für nicht-riskante Assets, grundsätzlich eine Asset-Entwicklung mit risikolosem Zinssatz anzunehmen. Nach diesem neuen Ansatz wird die Cushion-Dynamik von einem bivariaten Levy-Prozess gesteuert. Die Lösung der zugehörigen SDE ist ein verallgemeinerter Ornstein-Uhlenbeck-Prozess. Daher leiten wir die Risikomaße mit stochastischer Integration her. Am Ende dieser Dissertation werden empirische Ergebnisse dargestellt, in den wir das neue Modell mit den bekannten Modellen vergleichen. <dt.>']]
### GND ID:
['gnd:141482370', 'gnd:4137042-9', 'gnd:4147574-4', 'gnd:4406694-6', 'gnd:4716345-8', 'gnd:4845858-2', 'gnd:7623854-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A85997202X']
### GND class:
['Pfeifer, Dietmar', 'Risikoanalyse', 'Charakteristische Funktion', 'Portfolio Insurance', 'Risikomaß', 'Ornstein-Uhlenbeck-Prozess', 'Gap-Analyse']
<|eot_id|> |
3A860033082.jsonld | ['Robust automatic speech recognition and modeling of auditory discrimination experiments with auditory spectro-temporal features'] | ['Automatic speech recognition (ASR) systems still do not perform as well as human listeners under realistic conditions. The unmatched ability of humans to understand speech in most difficult acoustic conditions originates from the superior properties of their auditory system. The aim of this thesis is to improve the recognition performance of ASR systems in difficult acoustic conditions by carefully integrating auditory signal processing strategies. To this end, the physiologically inspired extraction of spectro-temporal modulation patterns was successfully integrated into the front-end of a standard ASR system. Further, the joint spectro-temporal processing could be separated into independent temporal and spectral processes. To investigate the reason for the remaining "man-machine-gap" in recognition performance, a range of critical auditory discrimination tasks were performed using ASR systems. The comparison with empirical data showed that the separate spectro-temporal modulation front-end provides a suitable auditory model and revealed the importance of across-frequency processing in speech recognition. <engl.>'] | ['gnd:1106414667', 'gnd:115487956', 'gnd:26375-8', 'gnd:4003961-4', 'gnd:4056494-0', 'gnd:4116579-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860033082'] | ['Schädler, Marc René', 'Kollmeier, Birger', 'Carl von Ossietzky Universität Oldenburg', 'Automatische Spracherkennung', 'Sprachsignal', 'Sprachverarbeitung'] | Document
### Title: ['Robust automatic speech recognition and modeling of auditory discrimination experiments with auditory spectro-temporal features']
### Abstract:
['Automatic speech recognition (ASR) systems still do not perform as well as human listeners under realistic conditions. The unmatched ability of humans to understand speech in most difficult acoustic conditions originates from the superior properties of their auditory system. The aim of this thesis is to improve the recognition performance of ASR systems in difficult acoustic conditions by carefully integrating auditory signal processing strategies. To this end, the physiologically inspired extraction of spectro-temporal modulation patterns was successfully integrated into the front-end of a standard ASR system. Further, the joint spectro-temporal processing could be separated into independent temporal and spectral processes. To investigate the reason for the remaining "man-machine-gap" in recognition performance, a range of critical auditory discrimination tasks were performed using ASR systems. The comparison with empirical data showed that the separate spectro-temporal modulation front-end provides a suitable auditory model and revealed the importance of across-frequency processing in speech recognition. <engl.>']
### GND ID:
['gnd:1106414667', 'gnd:115487956', 'gnd:26375-8', 'gnd:4003961-4', 'gnd:4056494-0', 'gnd:4116579-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860033082']
### GND class:
['Schädler, Marc René', 'Kollmeier, Birger', 'Carl von Ossietzky Universität Oldenburg', 'Automatische Spracherkennung', 'Sprachsignal', 'Sprachverarbeitung']
<|eot_id|> |
3A860044734.jsonld | ['Tectonic mechanical properties of the Alborz region, Iran'] | ['In this study for better analysis of geo-hazard on two parameters were focused: geodynamics and mechanical property of the orogen. The Alborz region in the northern Iran was selected as the study area. The Alborz mountain range in Iran is an ideal object to investigate the potential influence of past tectonic regimes on the future evolution of this long-lived convergence. For this purpose, previous geodynamic results were reviewed and compiled with data on present day tectonic activity at crustal and upper mantle scale. Previously published models indicate that the Iran Plate was subjected to a series of extensional and compressional tectonic regimes, ultimately linked with the opening and closure of the Tethys Ocean and related basins. Two subduction-collision cycles are recognized: one cycle occurred as a result of the subduction of the Iran Plate beneath the Turan Plate and in this cycle the subduction phase ceased in the Cenozoic and since the Cenozoic it is in a collision phase. The other cycle took place as a result of the subduction of the Arabian Plate beneath the Iran Plate, and in this cycle the subduction phase began in the Mesozoic and is ending now. Thus, the current tectonic situation in the Alborz is a direct consequence from the ongoing Cenozoic subduction-collision cycle. GPS and earthquake data indicate that the Alborz region, resulting from the collision of the Iran Plate with the Turan Plate, is still an area of recently active compression. Moho and tomographic data show that there is no connection between slab remnants of the oceanic crust and the Iran Plate. Furthermore, the Moho beneath the central Alborz is about 20 km deeper than in surrounding areas, indicating further advancement of collision there. However, the collision is continuing and the shorted area between the Iran Plate and the Turan Plate may increase. During the crustal thickening, a deep Moho area can also develop. This evolution can be expected in the tectonic cycle between the Arabian Plate and the Iran Plate, and also other places of the Alpine-Himalayan Belt (AHB), such as the Caucasus region.'] | ['gnd:1098344731', 'gnd:36164-1', 'gnd:4142436-0', 'gnd:4735355-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860044734'] | ['Abdollahi, Azadeh', 'Friedrich-Schiller-Universität Jena', 'Angewandte Geologie', 'Alborz'] | Document
### Title: ['Tectonic mechanical properties of the Alborz region, Iran']
### Abstract:
['In this study for better analysis of geo-hazard on two parameters were focused: geodynamics and mechanical property of the orogen. The Alborz region in the northern Iran was selected as the study area. The Alborz mountain range in Iran is an ideal object to investigate the potential influence of past tectonic regimes on the future evolution of this long-lived convergence. For this purpose, previous geodynamic results were reviewed and compiled with data on present day tectonic activity at crustal and upper mantle scale. Previously published models indicate that the Iran Plate was subjected to a series of extensional and compressional tectonic regimes, ultimately linked with the opening and closure of the Tethys Ocean and related basins. Two subduction-collision cycles are recognized: one cycle occurred as a result of the subduction of the Iran Plate beneath the Turan Plate and in this cycle the subduction phase ceased in the Cenozoic and since the Cenozoic it is in a collision phase. The other cycle took place as a result of the subduction of the Arabian Plate beneath the Iran Plate, and in this cycle the subduction phase began in the Mesozoic and is ending now. Thus, the current tectonic situation in the Alborz is a direct consequence from the ongoing Cenozoic subduction-collision cycle. GPS and earthquake data indicate that the Alborz region, resulting from the collision of the Iran Plate with the Turan Plate, is still an area of recently active compression. Moho and tomographic data show that there is no connection between slab remnants of the oceanic crust and the Iran Plate. Furthermore, the Moho beneath the central Alborz is about 20 km deeper than in surrounding areas, indicating further advancement of collision there. However, the collision is continuing and the shorted area between the Iran Plate and the Turan Plate may increase. During the crustal thickening, a deep Moho area can also develop. This evolution can be expected in the tectonic cycle between the Arabian Plate and the Iran Plate, and also other places of the Alpine-Himalayan Belt (AHB), such as the Caucasus region.']
### GND ID:
['gnd:1098344731', 'gnd:36164-1', 'gnd:4142436-0', 'gnd:4735355-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860044734']
### GND class:
['Abdollahi, Azadeh', 'Friedrich-Schiller-Universität Jena', 'Angewandte Geologie', 'Alborz']
<|eot_id|> |
3A860164578.jsonld | ['Metal complexes with sulfur ligands as cytotoxic agents'] | ['A series of Pt(II) complexes with a ligand system based on ß-hydroxydithiocinnamic esters are described as potential cytotoxic agents. The pharmacophore was adapted by using different substituents at the aromatic moiety and by varying the alkyl chain lengths at the dithioester unit. Coordination towards a Pt(II) center afforded neutral (O,S) bidentate complexes where the ligand sphere is completed by a chlorido ligand and DMSO, which coordinates via its S atom. To achieve different polarities and hence degrees of aqueous solubility, the metal complexes’ behavior in aqueous solution was assessed by UV-vis spectroscopy, giving information on aquation processes and solubility behavior. The compounds’ biological activity against representative cancer cell lines was assessed. Fluorescence microscopy provided first visual impression of cellular response to the reported compounds. Biomolecule interaction studies were then conducted using ESI mass spectrometry and UV-visible spectroscopy. A panel of model proteins was investigated and stable binding of the (O,S)Pt unit towards amino acid side chains revealed. Binding motifs were furthermore analyzed by X-ray crystallographic studies. Subsequently, the compounds’ binding ability towards DNA was probed using 9-methylguanine and single-strand oligonucleotides. Also in this case, stable coordination of the (O,S)Pt unit was found. To enable an enhanced compound targeting towards cancer cells with peptide conjugates, synthetic pathways towards the formation of bioconjugates were explored. Two general methods to link the (O,S)Pt pharmacophore to a model peptide were applied, 1,3-dipolar azide-alkyne cycloaddition and the linking via amide bonds. To this aim, the ligand system was derivatized with alkyne-, azide-, and carboxy substituents and reacted with Leu5-Enkephalin bearing the respective complimentary functional group.'] | ['gnd:1081398159', 'gnd:36164-1', 'gnd:4133952-6', 'gnd:4148044-2', 'gnd:4193696-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860164578'] | ['Mügge, Carolin', 'Friedrich-Schiller-Universität Jena', 'Koordinationslehre', 'Cisplatin', 'Cytotoxizität'] | Document
### Title: ['Metal complexes with sulfur ligands as cytotoxic agents']
### Abstract:
['A series of Pt(II) complexes with a ligand system based on ß-hydroxydithiocinnamic esters are described as potential cytotoxic agents. The pharmacophore was adapted by using different substituents at the aromatic moiety and by varying the alkyl chain lengths at the dithioester unit. Coordination towards a Pt(II) center afforded neutral (O,S) bidentate complexes where the ligand sphere is completed by a chlorido ligand and DMSO, which coordinates via its S atom. To achieve different polarities and hence degrees of aqueous solubility, the metal complexes’ behavior in aqueous solution was assessed by UV-vis spectroscopy, giving information on aquation processes and solubility behavior. The compounds’ biological activity against representative cancer cell lines was assessed. Fluorescence microscopy provided first visual impression of cellular response to the reported compounds. Biomolecule interaction studies were then conducted using ESI mass spectrometry and UV-visible spectroscopy. A panel of model proteins was investigated and stable binding of the (O,S)Pt unit towards amino acid side chains revealed. Binding motifs were furthermore analyzed by X-ray crystallographic studies. Subsequently, the compounds’ binding ability towards DNA was probed using 9-methylguanine and single-strand oligonucleotides. Also in this case, stable coordination of the (O,S)Pt unit was found. To enable an enhanced compound targeting towards cancer cells with peptide conjugates, synthetic pathways towards the formation of bioconjugates were explored. Two general methods to link the (O,S)Pt pharmacophore to a model peptide were applied, 1,3-dipolar azide-alkyne cycloaddition and the linking via amide bonds. To this aim, the ligand system was derivatized with alkyne-, azide-, and carboxy substituents and reacted with Leu5-Enkephalin bearing the respective complimentary functional group.']
### GND ID:
['gnd:1081398159', 'gnd:36164-1', 'gnd:4133952-6', 'gnd:4148044-2', 'gnd:4193696-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860164578']
### GND class:
['Mügge, Carolin', 'Friedrich-Schiller-Universität Jena', 'Koordinationslehre', 'Cisplatin', 'Cytotoxizität']
<|eot_id|> |
3A860165825.jsonld | ['Canopy structure and the impact of drought on a Quercus suber L. woodland in Portugal'] | ['The thesis covers two topics, a performance evaluation of indirect leaf area index L and gap probability Pgap observation with the new digital cover photography DCP with special focus on the application in sparse canopies and the analysis of drought effects on water / carbon fluxes in a typical Mediterranean Quercus suber L. ecosystem. L and Pgap are important ecosystem parameters. Their indirect, height and angular distributed measurement remains a challenging task in open canopies. DCP was successfully applied here for the first time height and angular dependent. Results show similar Pgap compared to an established method. Clumping index Omega could be successfully derived by DCP for calculating L. DCP yielded precise L matching observations with litter traps. Woody component exclusion by object-based image analysis improved results. Ground-based crown observations yielded reasonable L height distributions compared with direct measurements. Plant species developed vast structural and functional adaptations to regulate carbon assimilation and respiratory water loss under drought. In the context of the extreme drought year 2012, drought effects on the entire ecosystem functioning are reported in the second part of the thesis. Therefore, multi-year observations of climate forcing, soil properties as well as ecosystem flux observations were conducted and combined stomatal conductance-photosynthesis modeling was applied and evaluated. Results show that precipitation effectiveness ET/P increased up to 122\\% in the dry year 2012 due to the ground water access of trees. Understorey and overstorey gross primary productivity and were reduced by 53\\% and 28\\% in 2012. Modelling results showed simultaneous reduction of maximum carboxylation rate and stomatal conductance. However, the ecosystem remained a carbon sink in both years with with 38\\% reduced sink strength.'] | ['gnd:1098344979', 'gnd:36164-1', 'gnd:4013248-1', 'gnd:4138469-6', 'gnd:4151140-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860165825'] | ['Piayda, Arndt', 'Friedrich-Schiller-Universität Jena', 'Dürre', 'Baumkrone', 'Eiche'] | Document
### Title: ['Canopy structure and the impact of drought on a Quercus suber L. woodland in Portugal']
### Abstract:
['The thesis covers two topics, a performance evaluation of indirect leaf area index L and gap probability Pgap observation with the new digital cover photography DCP with special focus on the application in sparse canopies and the analysis of drought effects on water / carbon fluxes in a typical Mediterranean Quercus suber L. ecosystem. L and Pgap are important ecosystem parameters. Their indirect, height and angular distributed measurement remains a challenging task in open canopies. DCP was successfully applied here for the first time height and angular dependent. Results show similar Pgap compared to an established method. Clumping index Omega could be successfully derived by DCP for calculating L. DCP yielded precise L matching observations with litter traps. Woody component exclusion by object-based image analysis improved results. Ground-based crown observations yielded reasonable L height distributions compared with direct measurements. Plant species developed vast structural and functional adaptations to regulate carbon assimilation and respiratory water loss under drought. In the context of the extreme drought year 2012, drought effects on the entire ecosystem functioning are reported in the second part of the thesis. Therefore, multi-year observations of climate forcing, soil properties as well as ecosystem flux observations were conducted and combined stomatal conductance-photosynthesis modeling was applied and evaluated. Results show that precipitation effectiveness ET/P increased up to 122\\% in the dry year 2012 due to the ground water access of trees. Understorey and overstorey gross primary productivity and were reduced by 53\\% and 28\\% in 2012. Modelling results showed simultaneous reduction of maximum carboxylation rate and stomatal conductance. However, the ecosystem remained a carbon sink in both years with with 38\\% reduced sink strength.']
### GND ID:
['gnd:1098344979', 'gnd:36164-1', 'gnd:4013248-1', 'gnd:4138469-6', 'gnd:4151140-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860165825']
### GND class:
['Piayda, Arndt', 'Friedrich-Schiller-Universität Jena', 'Dürre', 'Baumkrone', 'Eiche']
<|eot_id|> |
3A860178625.jsonld | ['The geothermal potential of Luxembourg : geological and thermal exploration for deep geothermal reservoirs in Luxembourg and the surroundings'] | ['The aim of this work is the evaluation of the geothermal potential of Luxembourg. The approach consists in a joint interpretation of different types of information necessary for a first rather qualitative assessment of deep geothermal reservoirs in Luxembourg and the adjoining regions in the surrounding countries of Belgium, France and Germany. For the identification of geothermal reservoirs by exploration, geological, thermal, hydrogeological and structural data are necessary. Until recently, however, reliable information about the thermal field and the regional geology, and thus about potential geothermal reservoirs, was lacking. Before a proper evaluation of the geothermal potential can be performed, a comprehensive survey of the geology and an assessment of the thermal field are required. As a first step, the geology and basin structure of the Mesozoic Trier–Luxembourg Basin (TLB) is reviewed and updated using recently published information on the geology and structures as well as borehole data available in Luxembourg and the adj…'] | ['gnd:110227853X', 'gnd:14379857X', 'gnd:4020285-9', 'gnd:4036728-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860178625'] | ['Schintgen, Tom Vincent', 'Mutti, Maria', 'Geothermik', 'Luxemburg'] | Document
### Title: ['The geothermal potential of Luxembourg : geological and thermal exploration for deep geothermal reservoirs in Luxembourg and the surroundings']
### Abstract:
['The aim of this work is the evaluation of the geothermal potential of Luxembourg. The approach consists in a joint interpretation of different types of information necessary for a first rather qualitative assessment of deep geothermal reservoirs in Luxembourg and the adjoining regions in the surrounding countries of Belgium, France and Germany. For the identification of geothermal reservoirs by exploration, geological, thermal, hydrogeological and structural data are necessary. Until recently, however, reliable information about the thermal field and the regional geology, and thus about potential geothermal reservoirs, was lacking. Before a proper evaluation of the geothermal potential can be performed, a comprehensive survey of the geology and an assessment of the thermal field are required. As a first step, the geology and basin structure of the Mesozoic Trier–Luxembourg Basin (TLB) is reviewed and updated using recently published information on the geology and structures as well as borehole data available in Luxembourg and the adj…']
### GND ID:
['gnd:110227853X', 'gnd:14379857X', 'gnd:4020285-9', 'gnd:4036728-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860178625']
### GND class:
['Schintgen, Tom Vincent', 'Mutti, Maria', 'Geothermik', 'Luxemburg']
<|eot_id|> |
3A860181626.jsonld | ['The geothermal potential of Luxembourg : geological and thermal exploration for deep geothermal reservoirs in Luxembourg and the surroundings'] | ['The aim of this work is the evaluation of the geothermal potential of Luxembourg. The approach consists in a joint interpretation of different types of information necessary for a first rather qualitative assessment of deep geothermal reservoirs in Luxembourg and the adjoining regions in the surrounding countries of Belgium, France and Germany. For the identification of geothermal reservoirs by exploration, geological, thermal, hydrogeological and structural data are necessary. Until recently, however, reliable information about the thermal field and the regional geology, and thus about potential geothermal reservoirs, was lacking. Before a proper evaluation of the geothermal potential can be performed, a comprehensive survey of the geology and an assessment of the thermal field are required. As a first step, the geology and basin structure of the Mesozoic Trier–Luxembourg Basin (TLB) is reviewed and updated using recently published information on the geology and structures as well as borehole data available in Luxembourg and the adj…'] | ['gnd:110227853X', 'gnd:14379857X', 'gnd:4020286-0', 'gnd:4036728-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860181626'] | ['Schintgen, Tom Vincent', 'Mutti, Maria', 'Geothermische Energie', 'Luxemburg'] | Document
### Title: ['The geothermal potential of Luxembourg : geological and thermal exploration for deep geothermal reservoirs in Luxembourg and the surroundings']
### Abstract:
['The aim of this work is the evaluation of the geothermal potential of Luxembourg. The approach consists in a joint interpretation of different types of information necessary for a first rather qualitative assessment of deep geothermal reservoirs in Luxembourg and the adjoining regions in the surrounding countries of Belgium, France and Germany. For the identification of geothermal reservoirs by exploration, geological, thermal, hydrogeological and structural data are necessary. Until recently, however, reliable information about the thermal field and the regional geology, and thus about potential geothermal reservoirs, was lacking. Before a proper evaluation of the geothermal potential can be performed, a comprehensive survey of the geology and an assessment of the thermal field are required. As a first step, the geology and basin structure of the Mesozoic Trier–Luxembourg Basin (TLB) is reviewed and updated using recently published information on the geology and structures as well as borehole data available in Luxembourg and the adj…']
### GND ID:
['gnd:110227853X', 'gnd:14379857X', 'gnd:4020286-0', 'gnd:4036728-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860181626']
### GND class:
['Schintgen, Tom Vincent', 'Mutti, Maria', 'Geothermische Energie', 'Luxemburg']
<|eot_id|> |
3A860290883.jsonld | ['The role of histone modifications in gene regulation : from C4 genes to a genome-wide exploration along the maize leaf gradient'] | ['Histone modification, gene regulation, C4 photosynthesis. - Histonmodifikationen, Genregulation, C4 Photosynthese'] | ['gnd:4037135-9', 'gnd:4122166-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860290883'] | ['Mais', 'Genregulation', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['The role of histone modifications in gene regulation : from C4 genes to a genome-wide exploration along the maize leaf gradient']
### Abstract:
['Histone modification, gene regulation, C4 photosynthesis. - Histonmodifikationen, Genregulation, C4 Photosynthese']
### GND ID:
['gnd:4037135-9', 'gnd:4122166-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860290883']
### GND class:
['Mais', 'Genregulation', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A860396134.jsonld | ['DiverCity - global cities as a literary phenomenon : Toronto, New York, and Los Angeles in a globalizing age'] | ["Based on the structured analysis of selected North American novels, this work examines global cities as a literary phenomenon (»DiverCity«). By analyzing Dionne Brand's Toronto, »What We All Long For« (2005), Chang-rae Lee's New York, »Native Speaker« (1995), and Karen Tei Yamashita's Los Angeles, »Tropic of Orange« (1997), Melanie U. Pooch provides the connecting link for exploring the triad of globalization and its effects, global cities as cultural nodal points, and cultural diversity in a globalizing age as a literary phenomenon. Thus, she contributes to a global, interdisciplinary, and multi-perspectival understanding of literature, culture, and society."] | ['gnd:1081994509', 'gnd:1096192268', 'gnd:1096193736', 'gnd:1096194929', 'gnd:123291518', 'gnd:130039837', 'gnd:132125773', 'gnd:4126697-3', 'gnd:4725236-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860396134'] | ['Pooch, Melanie U.', 'What we all long for', 'Native speaker', 'Tropic of orange', 'Lee, Chang-rae 1965', 'Yamashita, Karen Tei 1951', 'Brand, Dionne 1953', 'Stadt (Motiv)', 'Globalisierung (Motiv)'] | Document
### Title: ['DiverCity - global cities as a literary phenomenon : Toronto, New York, and Los Angeles in a globalizing age']
### Abstract:
["Based on the structured analysis of selected North American novels, this work examines global cities as a literary phenomenon (»DiverCity«). By analyzing Dionne Brand's Toronto, »What We All Long For« (2005), Chang-rae Lee's New York, »Native Speaker« (1995), and Karen Tei Yamashita's Los Angeles, »Tropic of Orange« (1997), Melanie U. Pooch provides the connecting link for exploring the triad of globalization and its effects, global cities as cultural nodal points, and cultural diversity in a globalizing age as a literary phenomenon. Thus, she contributes to a global, interdisciplinary, and multi-perspectival understanding of literature, culture, and society."]
### GND ID:
['gnd:1081994509', 'gnd:1096192268', 'gnd:1096193736', 'gnd:1096194929', 'gnd:123291518', 'gnd:130039837', 'gnd:132125773', 'gnd:4126697-3', 'gnd:4725236-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860396134']
### GND class:
['Pooch, Melanie U.', 'What we all long for', 'Native speaker', 'Tropic of orange', 'Lee, Chang-rae 1965', 'Yamashita, Karen Tei 1951', 'Brand, Dionne 1953', 'Stadt (Motiv)', 'Globalisierung (Motiv)']
<|eot_id|> |
3A860537978.jsonld | ['South Asian summer monsoon variability, a modelling study with the atmospheric regional climate model HIRHAM5'] | ["The lives of more than 1/6 th of the world population is directly affected by the caprices of the South Asian summer monsoon rainfall. India receives around 78 % of the annual precipitation during the June-September months, the summer monsoon season of South Asia. But, the monsoon circulation is not consistent throughout the entire summer season. Episodes of heavy rainfall (active periods) and low rainfall (break periods) are inherent to the intraseasonal variability of the South Asian summer monsoon. Extended breaks or long-lasting dryness can result in droughts and hence trigger crop failures and in turn famines. Furthermore, India's electricity generation from renewable sources (wind and hydro-power), which is increasingly important in order to satisfy the rapidly rising demand for energy, is highly reliant on the prevailing meteorology. The major drought years 2002 and 2009 for the Indian summer monsoon during the last decades, which are results of the occurrence of multiple extended breaks, emphasise exemplary that the understand…"] | ['gnd:1102951560', 'gnd:4058406-9', 'gnd:4170491-5', 'gnd:4202863-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860537978'] | ['Hanf, Franziska Stefanie', 'Südasien', 'Monsun', 'Allgemeine atmosphärische Zirkulation'] | Document
### Title: ['South Asian summer monsoon variability, a modelling study with the atmospheric regional climate model HIRHAM5']
### Abstract:
["The lives of more than 1/6 th of the world population is directly affected by the caprices of the South Asian summer monsoon rainfall. India receives around 78 % of the annual precipitation during the June-September months, the summer monsoon season of South Asia. But, the monsoon circulation is not consistent throughout the entire summer season. Episodes of heavy rainfall (active periods) and low rainfall (break periods) are inherent to the intraseasonal variability of the South Asian summer monsoon. Extended breaks or long-lasting dryness can result in droughts and hence trigger crop failures and in turn famines. Furthermore, India's electricity generation from renewable sources (wind and hydro-power), which is increasingly important in order to satisfy the rapidly rising demand for energy, is highly reliant on the prevailing meteorology. The major drought years 2002 and 2009 for the Indian summer monsoon during the last decades, which are results of the occurrence of multiple extended breaks, emphasise exemplary that the understand…"]
### GND ID:
['gnd:1102951560', 'gnd:4058406-9', 'gnd:4170491-5', 'gnd:4202863-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860537978']
### GND class:
['Hanf, Franziska Stefanie', 'Südasien', 'Monsun', 'Allgemeine atmosphärische Zirkulation']
<|eot_id|> |
3A86054611X.jsonld | ['South Asian summer monsoon variability : a modelling study with the atmospheric regional climate model HIRHAM5'] | ["The lives of more than 1/6 th of the world population is directly affected by the caprices of the South Asian summer monsoon rainfall. India receives around 78 % of the annual precipitation during the June-September months, the summer monsoon season of South Asia. But, the monsoon circulation is not consistent throughout the entire summer season. Episodes of heavy rainfall (active periods) and low rainfall (break periods) are inherent to the intraseasonal variability of the South Asian summer monsoon. Extended breaks or long-lasting dryness can result in droughts and hence trigger crop failures and in turn famines. Furthermore, India's electricity generation from renewable sources (wind and hydro-power), which is increasingly important in order to satisfy the rapidly rising demand for energy, is highly reliant on the prevailing meteorology. The major drought years 2002 and 2009 for the Indian summer monsoon during the last decades, which are results of the occurrence of multiple extended breaks, emphasise exemplary that the understand…"] | ['gnd:1102951560', 'gnd:2120681-8', 'gnd:4058406-9', 'gnd:4170491-5', 'gnd:4202863-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86054611X'] | ['Hanf, Franziska Stefanie', 'Universität Potsdam', 'Südasien', 'Monsun', 'Allgemeine atmosphärische Zirkulation'] | Document
### Title: ['South Asian summer monsoon variability : a modelling study with the atmospheric regional climate model HIRHAM5']
### Abstract:
["The lives of more than 1/6 th of the world population is directly affected by the caprices of the South Asian summer monsoon rainfall. India receives around 78 % of the annual precipitation during the June-September months, the summer monsoon season of South Asia. But, the monsoon circulation is not consistent throughout the entire summer season. Episodes of heavy rainfall (active periods) and low rainfall (break periods) are inherent to the intraseasonal variability of the South Asian summer monsoon. Extended breaks or long-lasting dryness can result in droughts and hence trigger crop failures and in turn famines. Furthermore, India's electricity generation from renewable sources (wind and hydro-power), which is increasingly important in order to satisfy the rapidly rising demand for energy, is highly reliant on the prevailing meteorology. The major drought years 2002 and 2009 for the Indian summer monsoon during the last decades, which are results of the occurrence of multiple extended breaks, emphasise exemplary that the understand…"]
### GND ID:
['gnd:1102951560', 'gnd:2120681-8', 'gnd:4058406-9', 'gnd:4170491-5', 'gnd:4202863-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86054611X']
### GND class:
['Hanf, Franziska Stefanie', 'Universität Potsdam', 'Südasien', 'Monsun', 'Allgemeine atmosphärische Zirkulation']
<|eot_id|> |
3A860761371.jsonld | ['Reciprocal classes of continuous time Markov Chains'] | ['In this thesis we study reciprocal classes of Markov chains. Given a continuous time Markov chain on a countable state space, acting as reference dynamics, the associated reciprocal class is the set of all probability measures on path space that can be written as a mixture of its bridges. These processes possess a conditional independence property that generalizes the Markov property, and evolved from an idea of Schrödinger, who wanted to obtain a probabilistic interpretation of quantum mechanics. Associated to a reciprocal class is a set of reciprocal characteristics, which are space-time functions that determine the reciprocal class. We compute explicitly these characteristics, and divide them into two main families: arc characteristics and cycle characteristics. As a byproduct, we obtain an explicit criterion to check when two different Markov chains share their bridges. Starting from the characteristics we offer two different descriptions of the reciprocal class, including its non-Markov probabilities. The first one is based on a pathwise approach and the second one on short time asymptotic. With the first approach one produces a family of functional equations whose only solutions are precisely the elements of the reciprocal class. These equations are integration by parts on path space associated with derivative operators which perturb the paths by mean of the addition of random loops. Several geometrical tools are employed to construct such formulas. The problem of obtaining sharp characterizations is also considered, showing some interesting connections with discrete geometry. Examples of such formulas are given in the framework of counting processes and random walks on Abelian groups, where the set of loops has a group structure. In addition to this global description, we propose a second approach by looking at the short time behavior of a reciprocal process. In the same way as the Markov property and short time expansions of transition probabilities characterize Markov chains, we show that a reciprocal class is characterized by imposing the reciprocal property and two families of short time expansions for the bridges. Such local approach is suitable to study reciprocal processes on general countable graphs. As application of our characterization, we considered several interesting graphs, such as lattices, planar graphs, the complete graph, and the hypercube. Finally, we obtain some first results about concentration of measure implied by lower bounds on the reciprocal characteristics.'] | ['gnd:1103153463', 'gnd:4037612-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860761371'] | ['Conforti, Giovanni', 'Markov-Kette'] | Document
### Title: ['Reciprocal classes of continuous time Markov Chains']
### Abstract:
['In this thesis we study reciprocal classes of Markov chains. Given a continuous time Markov chain on a countable state space, acting as reference dynamics, the associated reciprocal class is the set of all probability measures on path space that can be written as a mixture of its bridges. These processes possess a conditional independence property that generalizes the Markov property, and evolved from an idea of Schrödinger, who wanted to obtain a probabilistic interpretation of quantum mechanics. Associated to a reciprocal class is a set of reciprocal characteristics, which are space-time functions that determine the reciprocal class. We compute explicitly these characteristics, and divide them into two main families: arc characteristics and cycle characteristics. As a byproduct, we obtain an explicit criterion to check when two different Markov chains share their bridges. Starting from the characteristics we offer two different descriptions of the reciprocal class, including its non-Markov probabilities. The first one is based on a pathwise approach and the second one on short time asymptotic. With the first approach one produces a family of functional equations whose only solutions are precisely the elements of the reciprocal class. These equations are integration by parts on path space associated with derivative operators which perturb the paths by mean of the addition of random loops. Several geometrical tools are employed to construct such formulas. The problem of obtaining sharp characterizations is also considered, showing some interesting connections with discrete geometry. Examples of such formulas are given in the framework of counting processes and random walks on Abelian groups, where the set of loops has a group structure. In addition to this global description, we propose a second approach by looking at the short time behavior of a reciprocal process. In the same way as the Markov property and short time expansions of transition probabilities characterize Markov chains, we show that a reciprocal class is characterized by imposing the reciprocal property and two families of short time expansions for the bridges. Such local approach is suitable to study reciprocal processes on general countable graphs. As application of our characterization, we considered several interesting graphs, such as lattices, planar graphs, the complete graph, and the hypercube. Finally, we obtain some first results about concentration of measure implied by lower bounds on the reciprocal characteristics.']
### GND ID:
['gnd:1103153463', 'gnd:4037612-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860761371']
### GND class:
['Conforti, Giovanni', 'Markov-Kette']
<|eot_id|> |
3A860762556.jsonld | ['Reciprocal classes of continuous time Markov Chains'] | ['In this thesis we study reciprocal classes of Markov chains. Given a continuous time Markov chain on a countable state space, acting as reference dynamics, the associated reciprocal class is the set of all probability measures on path space that can be written as a mixture of its bridges. These processes possess a conditional independence property that generalizes the Markov property, and evolved from an idea of Schrödinger, who wanted to obtain a probabilistic interpretation of quantum mechanics. Associated to a reciprocal class is a set of reciprocal characteristics, which are space-time functions that determine the reciprocal class. We compute explicitly these characteristics, and divide them into two main families: arc characteristics and cycle characteristics. As a byproduct, we obtain an explicit criterion to check when two different Markov chains share their bridges. Starting from the characteristics we offer two different descriptions of the reciprocal class, including its non-Markov probabilities. The first one is based on a pathwise approach and the second one on short time asymptotic. With the first approach one produces a family of functional equations whose only solutions are precisely the elements of the reciprocal class. These equations are integration by parts on path space associated with derivative operators which perturb the paths by mean of the addition of random loops. Several geometrical tools are employed to construct such formulas. The problem of obtaining sharp characterizations is also considered, showing some interesting connections with discrete geometry. Examples of such formulas are given in the framework of counting processes and random walks on Abelian groups, where the set of loops has a group structure. In addition to this global description, we propose a second approach by looking at the short time behavior of a reciprocal process. In the same way as the Markov property and short time expansions of transition probabilities characterize Markov chains, we show that a reciprocal class is characterized by imposing the reciprocal property and two families of short time expansions for the bridges. Such local approach is suitable to study reciprocal processes on general countable graphs. As application of our characterization, we considered several interesting graphs, such as lattices, planar graphs, the complete graph, and the hypercube. Finally, we obtain some first results about concentration of measure implied by lower bounds on the reciprocal characteristics.'] | ['gnd:1103153463', 'gnd:2120681-8', 'gnd:4037612-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860762556'] | ['Conforti, Giovanni', 'Universität Potsdam', 'Markov-Kette'] | Document
### Title: ['Reciprocal classes of continuous time Markov Chains']
### Abstract:
['In this thesis we study reciprocal classes of Markov chains. Given a continuous time Markov chain on a countable state space, acting as reference dynamics, the associated reciprocal class is the set of all probability measures on path space that can be written as a mixture of its bridges. These processes possess a conditional independence property that generalizes the Markov property, and evolved from an idea of Schrödinger, who wanted to obtain a probabilistic interpretation of quantum mechanics. Associated to a reciprocal class is a set of reciprocal characteristics, which are space-time functions that determine the reciprocal class. We compute explicitly these characteristics, and divide them into two main families: arc characteristics and cycle characteristics. As a byproduct, we obtain an explicit criterion to check when two different Markov chains share their bridges. Starting from the characteristics we offer two different descriptions of the reciprocal class, including its non-Markov probabilities. The first one is based on a pathwise approach and the second one on short time asymptotic. With the first approach one produces a family of functional equations whose only solutions are precisely the elements of the reciprocal class. These equations are integration by parts on path space associated with derivative operators which perturb the paths by mean of the addition of random loops. Several geometrical tools are employed to construct such formulas. The problem of obtaining sharp characterizations is also considered, showing some interesting connections with discrete geometry. Examples of such formulas are given in the framework of counting processes and random walks on Abelian groups, where the set of loops has a group structure. In addition to this global description, we propose a second approach by looking at the short time behavior of a reciprocal process. In the same way as the Markov property and short time expansions of transition probabilities characterize Markov chains, we show that a reciprocal class is characterized by imposing the reciprocal property and two families of short time expansions for the bridges. Such local approach is suitable to study reciprocal processes on general countable graphs. As application of our characterization, we considered several interesting graphs, such as lattices, planar graphs, the complete graph, and the hypercube. Finally, we obtain some first results about concentration of measure implied by lower bounds on the reciprocal characteristics.']
### GND ID:
['gnd:1103153463', 'gnd:2120681-8', 'gnd:4037612-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860762556']
### GND class:
['Conforti, Giovanni', 'Universität Potsdam', 'Markov-Kette']
<|eot_id|> |
3A860772926.jsonld | ['About the role of physico-chemical properties and hydrodynamics on the progress of a precipitation reaction : the case of cerium oxalate particles produced during coalescence of drops'] | ['The size and morphology control of precipitated solid particles is a major economic issue for numerous industries. For instance, it is interesting for the nuclear industry, concerning the recovery of radioactive species from used nuclear fuel. The precipitates features, which are a key parameter from the post-precipitate processing, depend on the process local mixing conditions. So far, the relationship between precipitation features and hydrodynamic conditions have not been investigated. In this study, a new experimental configuration consisting of coalescing drops is set to investigate the link between reactive crystallization and hydrodynamics. Two configurations of aqueous drops are examined. The first one corresponds to high contact angle drops (>90°) in oil, as a model system for flowing drops, the second one correspond to sessile drops in air with low contact angle (<25°). In both cases, one reactive is dissolved in each drop, namely oxalic acid and cerium nitrate. When both drops get into contact, they may coalesce; the dissolved species mix and react to produce insoluble cerium oxalate. The precipitates features and effect on hydrodynamics are investigated depending on the solvent. In the case of sessile drops in air, the surface tension difference between the drops generates a gradient which induces a Marangoni flow from the low surface tension drop over the high surface tension drop. By setting the surface tension difference between the two drops and thus the Marangoni flow, the hydrodynamics conditions during the drop coalescence could be modified. Diols/water mixtures are used as solvent, in order to fix the surface tension difference between the liquids of both drops regardless from the reactant concentration. More precisely, the used diols, 1,2-propanediol and 1,3-propanediol, are isomer with identical density and close viscosity. By keeping the water volume fraction constant and playing with the 1,2-propanediol and 1,3-propanediol volume fractions of the solvents, the mixtures surface tensions differ up to 10 mN/m for identical/constant reactant concentration, density and viscosity. 3 precipitation behaviors were identified for the coalescence of water/diols/recatants drops depending on the oxalic excess. The corresponding precipitates patterns are visualized by optical microscopy and the precipitates are characterized by confocal microscopy SEM, XRD and SAXS measurements. In the intermediate oxalic excess regime, formation of periodic patterns can be observed. These patterns consist in alternating cerium oxalate precipitates with distinct morphologies, namely needles and “microflowers”. Such periodic fringes can be explained by a feedback mechanism between convection, reaction and the diffusion.'] | ['gnd:1103155830', 'gnd:2120681-8', 'gnd:26866-5', 'gnd:4121443-2', 'gnd:4130676-4', 'gnd:4140073-2', 'gnd:4147505-7', 'gnd:4260101-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860772926'] | ['Jehannin, Marie', 'Universität Potsdam', 'Université des Sciences et Techniques du Languedoc', 'Oxalate', 'Tropfen', 'Koaleszenz', 'Cerverbindungen', 'Fällung'] | Document
### Title: ['About the role of physico-chemical properties and hydrodynamics on the progress of a precipitation reaction : the case of cerium oxalate particles produced during coalescence of drops']
### Abstract:
['The size and morphology control of precipitated solid particles is a major economic issue for numerous industries. For instance, it is interesting for the nuclear industry, concerning the recovery of radioactive species from used nuclear fuel. The precipitates features, which are a key parameter from the post-precipitate processing, depend on the process local mixing conditions. So far, the relationship between precipitation features and hydrodynamic conditions have not been investigated. In this study, a new experimental configuration consisting of coalescing drops is set to investigate the link between reactive crystallization and hydrodynamics. Two configurations of aqueous drops are examined. The first one corresponds to high contact angle drops (>90°) in oil, as a model system for flowing drops, the second one correspond to sessile drops in air with low contact angle (<25°). In both cases, one reactive is dissolved in each drop, namely oxalic acid and cerium nitrate. When both drops get into contact, they may coalesce; the dissolved species mix and react to produce insoluble cerium oxalate. The precipitates features and effect on hydrodynamics are investigated depending on the solvent. In the case of sessile drops in air, the surface tension difference between the drops generates a gradient which induces a Marangoni flow from the low surface tension drop over the high surface tension drop. By setting the surface tension difference between the two drops and thus the Marangoni flow, the hydrodynamics conditions during the drop coalescence could be modified. Diols/water mixtures are used as solvent, in order to fix the surface tension difference between the liquids of both drops regardless from the reactant concentration. More precisely, the used diols, 1,2-propanediol and 1,3-propanediol, are isomer with identical density and close viscosity. By keeping the water volume fraction constant and playing with the 1,2-propanediol and 1,3-propanediol volume fractions of the solvents, the mixtures surface tensions differ up to 10 mN/m for identical/constant reactant concentration, density and viscosity. 3 precipitation behaviors were identified for the coalescence of water/diols/recatants drops depending on the oxalic excess. The corresponding precipitates patterns are visualized by optical microscopy and the precipitates are characterized by confocal microscopy SEM, XRD and SAXS measurements. In the intermediate oxalic excess regime, formation of periodic patterns can be observed. These patterns consist in alternating cerium oxalate precipitates with distinct morphologies, namely needles and “microflowers”. Such periodic fringes can be explained by a feedback mechanism between convection, reaction and the diffusion.']
### GND ID:
['gnd:1103155830', 'gnd:2120681-8', 'gnd:26866-5', 'gnd:4121443-2', 'gnd:4130676-4', 'gnd:4140073-2', 'gnd:4147505-7', 'gnd:4260101-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860772926']
### GND class:
['Jehannin, Marie', 'Universität Potsdam', 'Université des Sciences et Techniques du Languedoc', 'Oxalate', 'Tropfen', 'Koaleszenz', 'Cerverbindungen', 'Fällung']
<|eot_id|> |
3A860784703.jsonld | ['Multi-spectrum retrieval of maps of Venus´ surface emissivity in the infrared'] | ['The main goal of this cumulative thesis is the derivation of surface emissivity data in the infrared from radiance measurements of Venus. Since these data are diagnostic of the chemical composition and grain size of the surface material, they can help to improve knowledge of the planet’s geology. Spectrally resolved images of nightside emissions in the range 1.0-5.1 μm were recently acquired by the InfraRed Mapping channel of the Visible and InfraRed Thermal Imaging Spectrometer (VIRTIS-M-IR) aboard ESA’s Venus EXpress (VEX). Surface and deep atmospheric thermal emissions in this spectral range are strongly obscured by the extremely opaque atmosphere, but three narrow spectral windows at 1.02, 1.10, and 1.18 μm allow the sounding of the surface. Additional windows between 1.3 and 2.6 μm provide information on atmospheric parameters that is required to interpret the surface signals. Quantitative data on surface and atmosphere can be retrieved from the measured spectra by comparing them to simulated spectra. A numerical radiative transfer model is used in this work to simulate the observable radiation as a function of atmospheric, surface, and instrumental parameters. It is a line-by-line model taking into account thermal emissions by surface and atmosphere as well as absorption and multiple scattering by gases and clouds. The VIRTIS-M-IR measurements are first preprocessed to obtain an optimal data basis for the subsequent steps. In this process, a detailed detector responsivity analysis enables the optimization of the data consistency. The measurement data have a relatively low spectral information content, and different parameter vectors can describe the same measured spectrum equally well. A usual method to regularize the retrieval of the wanted parameters from a measured spectrum is to take into account a priori mean values and standard deviations of the parameters to be retrieved. This decreases the probability to obtain unreasonable parameter values. The multi-spectrum retrieval algorithm MSR is developed to additionally consider physically realistic spatial and temporal a priori correlations between retrieval parameters describing different measurements. Neglecting geologic activity, MSR also allows the retrieval of an emissivity map as a parameter vector that is common to several spectrally resolved images that cover the same surface target. Even applying MSR, it is difficult to obtain reliable emissivity maps in absolute values. A detailed retrieval error analysis based on synthetic spectra reveals that this is mainly due to interferences from parameters that cannot be derived from the spectra themselves, but that have to be set to assumed values to enable the radiative transfer simulations. The MSR retrieval of emissivity maps relative to a fixed emissivity is shown to effectively avoid most emissivity retrieval errors. Relative emissivity maps at 1.02, 1.10, and 1.18 μm are finally derived from many VIRTIS-M-IR measurements that cover a surface target at Themis Regio. They are interpreted as spatial variations relative to an assumed emissivity mean of the target. It is verified that the maps are largely independent of the choice of many interfering parameters as well as the utilized measurement data set. These are the first Venus IR emissivity data maps based on a consistent application of a full radiative transfer simulation and a retrieval algorithm that respects a priori information. The maps are sufficiently reliable for future geologic interpretations.'] | ['gnd:1103161482', 'gnd:2120681-8', 'gnd:4062527-8', 'gnd:4497183-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860784703'] | ['Kappel, David', 'Universität Potsdam', 'Venus (Planet)', 'Infrarotemission'] | Document
### Title: ['Multi-spectrum retrieval of maps of Venus´ surface emissivity in the infrared']
### Abstract:
['The main goal of this cumulative thesis is the derivation of surface emissivity data in the infrared from radiance measurements of Venus. Since these data are diagnostic of the chemical composition and grain size of the surface material, they can help to improve knowledge of the planet’s geology. Spectrally resolved images of nightside emissions in the range 1.0-5.1 μm were recently acquired by the InfraRed Mapping channel of the Visible and InfraRed Thermal Imaging Spectrometer (VIRTIS-M-IR) aboard ESA’s Venus EXpress (VEX). Surface and deep atmospheric thermal emissions in this spectral range are strongly obscured by the extremely opaque atmosphere, but three narrow spectral windows at 1.02, 1.10, and 1.18 μm allow the sounding of the surface. Additional windows between 1.3 and 2.6 μm provide information on atmospheric parameters that is required to interpret the surface signals. Quantitative data on surface and atmosphere can be retrieved from the measured spectra by comparing them to simulated spectra. A numerical radiative transfer model is used in this work to simulate the observable radiation as a function of atmospheric, surface, and instrumental parameters. It is a line-by-line model taking into account thermal emissions by surface and atmosphere as well as absorption and multiple scattering by gases and clouds. The VIRTIS-M-IR measurements are first preprocessed to obtain an optimal data basis for the subsequent steps. In this process, a detailed detector responsivity analysis enables the optimization of the data consistency. The measurement data have a relatively low spectral information content, and different parameter vectors can describe the same measured spectrum equally well. A usual method to regularize the retrieval of the wanted parameters from a measured spectrum is to take into account a priori mean values and standard deviations of the parameters to be retrieved. This decreases the probability to obtain unreasonable parameter values. The multi-spectrum retrieval algorithm MSR is developed to additionally consider physically realistic spatial and temporal a priori correlations between retrieval parameters describing different measurements. Neglecting geologic activity, MSR also allows the retrieval of an emissivity map as a parameter vector that is common to several spectrally resolved images that cover the same surface target. Even applying MSR, it is difficult to obtain reliable emissivity maps in absolute values. A detailed retrieval error analysis based on synthetic spectra reveals that this is mainly due to interferences from parameters that cannot be derived from the spectra themselves, but that have to be set to assumed values to enable the radiative transfer simulations. The MSR retrieval of emissivity maps relative to a fixed emissivity is shown to effectively avoid most emissivity retrieval errors. Relative emissivity maps at 1.02, 1.10, and 1.18 μm are finally derived from many VIRTIS-M-IR measurements that cover a surface target at Themis Regio. They are interpreted as spatial variations relative to an assumed emissivity mean of the target. It is verified that the maps are largely independent of the choice of many interfering parameters as well as the utilized measurement data set. These are the first Venus IR emissivity data maps based on a consistent application of a full radiative transfer simulation and a retrieval algorithm that respects a priori information. The maps are sufficiently reliable for future geologic interpretations.']
### GND ID:
['gnd:1103161482', 'gnd:2120681-8', 'gnd:4062527-8', 'gnd:4497183-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860784703']
### GND class:
['Kappel, David', 'Universität Potsdam', 'Venus (Planet)', 'Infrarotemission']
<|eot_id|> |
3A860854590.jsonld | ['Optical frequency comb generation in optical fibres'] | ['Optical frequency combs (OFC) constitute an array of phase-correlated equidistant spectral lines with nearly equal intensities over a broad spectral range. The adaptations of combs generated in mode-locked lasers proved to be highly efficient for the calibration of high-resolution (resolving power > 50000) astronomical spectrographs. The observation of different galaxy structures or the studies of the Milky Way are done using instruments in the low- and medium resolution range. To such instruments belong, for instance, the Multi Unit Spectroscopic Explorer (MUSE) being developed for the Very Large Telescope (VLT) of the European Southern Observatory (ESO) and the 4-metre Multi-Object Spectroscopic Telescope (4MOST) being in development for the ESO VISTA 4.1 m Telescope. The existing adaptations of OFC from mode-locked lasers are not resolvable by these instruments. Within this work, a fibre-based approach for generation of OFC specifically in the low- and medium resolution range is studied numerically. This approach consists of three optical fibres that are fed by two equally intense continuous-wave (CW) lasers. The first fibre is a conventional single-mode fibre, the second one is a suitably pumped amplifying Erbium-doped fibre with anomalous dispersion, and the third one is a low-dispersion highly nonlinear optical fibre. The evolution of a frequency comb in this system is governed by the following processes: as the two initial CW-laser waves with different frequencies propagate through the first fibre, they generate an initial comb via a cascade of four-wave mixing processes. The frequency components of the comb are phase-correlated with the original laser lines and have a frequency spacing that is equal to the initial laser frequency separation (LFS), i.e. the difference in the laser frequencies. In the time domain, a train of pre-compressed pulses with widths of a few pico-seconds arises out of the initial bichromatic deeply-modulated cosine-wave. These pulses undergo strong compression in the subsequent amplifying Erbium-doped fibre: sub-100 fs pulses with broad OFC spectra are formed. In the following low-dispersion highly nonlinear fibre, the OFC experience a further broadening and the intensity of the comb lines are fairly equalised. This approach was mathematically modelled by means of a Generalised Nonlinear Schrödinger Equation (GNLS) that contains terms describing the nonlinear optical Kerr effect, the delayed Raman response, the pulse self-steepening, and the linear optical losses as well as the wavelength-dependent Erbium gain profile for the second fibre. The initial condition equation being a deeply-modulated cosine-wave mimics the radiation of the two initial CW lasers. The numerical studies are performed with the help of Matlab scripts that were specifically developed for the integration of the GNLS and the initial condition according to the proposed approach for the OFC generation. The scripts are based on the Fourth-Order Runge-Kutta in the Interaction Picture Method (RK4IP) in combination with the local error method. This work includes the studies and results on the length optimisation of the first and the second fibre depending on different values of the group-velocity dispersion of the first fibre. Such length optimisation studies are necessary because the OFC have the biggest possible broadband and exhibit a low level of noise exactly at the optimum lengths. Further, the optical pulse build-up in the first and the second fibre was studied by means of the numerical technique called Soliton Radiation Beat Analysis (SRBA). It was shown that a common soliton crystal state is formed in the first fibre for low laser input powers. The soliton crystal continuously dissolves into separated optical solitons as the input power increases. The pulse formation in the second fibre is critically dependent on the features of the pulses formed in the first fibre. I showed that, for low input powers, an adiabatic soliton compression delivering low-noise OFC occurs in the second fibre. At high input powers, the pulses in the first fibre have more complicated structures which leads to the pulse break-up in the second fibre with a subsequent degradation of the OFC noise performance. The pulse intensity noise studies that were performed within the framework of this thesis allow making statements about the noise performance of an OFC. They showed that the intensity noise of the whole system decreases with the increasing value of LFS.'] | ['gnd:1103251678', 'gnd:4143252-6', 'gnd:4167589-7', 'gnd:7633313-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860854590'] | ['Zajnulina, Marina', 'Astronomisches Instrument', 'Lichtleitfaser', 'Optischer Frequenzkamm'] | Document
### Title: ['Optical frequency comb generation in optical fibres']
### Abstract:
['Optical frequency combs (OFC) constitute an array of phase-correlated equidistant spectral lines with nearly equal intensities over a broad spectral range. The adaptations of combs generated in mode-locked lasers proved to be highly efficient for the calibration of high-resolution (resolving power > 50000) astronomical spectrographs. The observation of different galaxy structures or the studies of the Milky Way are done using instruments in the low- and medium resolution range. To such instruments belong, for instance, the Multi Unit Spectroscopic Explorer (MUSE) being developed for the Very Large Telescope (VLT) of the European Southern Observatory (ESO) and the 4-metre Multi-Object Spectroscopic Telescope (4MOST) being in development for the ESO VISTA 4.1 m Telescope. The existing adaptations of OFC from mode-locked lasers are not resolvable by these instruments. Within this work, a fibre-based approach for generation of OFC specifically in the low- and medium resolution range is studied numerically. This approach consists of three optical fibres that are fed by two equally intense continuous-wave (CW) lasers. The first fibre is a conventional single-mode fibre, the second one is a suitably pumped amplifying Erbium-doped fibre with anomalous dispersion, and the third one is a low-dispersion highly nonlinear optical fibre. The evolution of a frequency comb in this system is governed by the following processes: as the two initial CW-laser waves with different frequencies propagate through the first fibre, they generate an initial comb via a cascade of four-wave mixing processes. The frequency components of the comb are phase-correlated with the original laser lines and have a frequency spacing that is equal to the initial laser frequency separation (LFS), i.e. the difference in the laser frequencies. In the time domain, a train of pre-compressed pulses with widths of a few pico-seconds arises out of the initial bichromatic deeply-modulated cosine-wave. These pulses undergo strong compression in the subsequent amplifying Erbium-doped fibre: sub-100 fs pulses with broad OFC spectra are formed. In the following low-dispersion highly nonlinear fibre, the OFC experience a further broadening and the intensity of the comb lines are fairly equalised. This approach was mathematically modelled by means of a Generalised Nonlinear Schrödinger Equation (GNLS) that contains terms describing the nonlinear optical Kerr effect, the delayed Raman response, the pulse self-steepening, and the linear optical losses as well as the wavelength-dependent Erbium gain profile for the second fibre. The initial condition equation being a deeply-modulated cosine-wave mimics the radiation of the two initial CW lasers. The numerical studies are performed with the help of Matlab scripts that were specifically developed for the integration of the GNLS and the initial condition according to the proposed approach for the OFC generation. The scripts are based on the Fourth-Order Runge-Kutta in the Interaction Picture Method (RK4IP) in combination with the local error method. This work includes the studies and results on the length optimisation of the first and the second fibre depending on different values of the group-velocity dispersion of the first fibre. Such length optimisation studies are necessary because the OFC have the biggest possible broadband and exhibit a low level of noise exactly at the optimum lengths. Further, the optical pulse build-up in the first and the second fibre was studied by means of the numerical technique called Soliton Radiation Beat Analysis (SRBA). It was shown that a common soliton crystal state is formed in the first fibre for low laser input powers. The soliton crystal continuously dissolves into separated optical solitons as the input power increases. The pulse formation in the second fibre is critically dependent on the features of the pulses formed in the first fibre. I showed that, for low input powers, an adiabatic soliton compression delivering low-noise OFC occurs in the second fibre. At high input powers, the pulses in the first fibre have more complicated structures which leads to the pulse break-up in the second fibre with a subsequent degradation of the OFC noise performance. The pulse intensity noise studies that were performed within the framework of this thesis allow making statements about the noise performance of an OFC. They showed that the intensity noise of the whole system decreases with the increasing value of LFS.']
### GND ID:
['gnd:1103251678', 'gnd:4143252-6', 'gnd:4167589-7', 'gnd:7633313-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A860854590']
### GND class:
['Zajnulina, Marina', 'Astronomisches Instrument', 'Lichtleitfaser', 'Optischer Frequenzkamm']
<|eot_id|> |
3A86085468X.jsonld | ['Optical frequency comb generation in optical fibres'] | ['Optical frequency combs (OFC) constitute an array of phase-correlated equidistant spectral lines with nearly equal intensities over a broad spectral range. The adaptations of combs generated in mode-locked lasers proved to be highly efficient for the calibration of high-resolution (resolving power > 50000) astronomical spectrographs. The observation of different galaxy structures or the studies of the Milky Way are done using instruments in the low- and medium resolution range. To such instruments belong, for instance, the Multi Unit Spectroscopic Explorer (MUSE) being developed for the Very Large Telescope (VLT) of the European Southern Observatory (ESO) and the 4-metre Multi-Object Spectroscopic Telescope (4MOST) being in development for the ESO VISTA 4.1 m Telescope. The existing adaptations of OFC from mode-locked lasers are not resolvable by these instruments. Within this work, a fibre-based approach for generation of OFC specifically in the low- and medium resolution range is studied numerically. This approach consists of three optical fibres that are fed by two equally intense continuous-wave (CW) lasers. The first fibre is a conventional single-mode fibre, the second one is a suitably pumped amplifying Erbium-doped fibre with anomalous dispersion, and the third one is a low-dispersion highly nonlinear optical fibre. The evolution of a frequency comb in this system is governed by the following processes: as the two initial CW-laser waves with different frequencies propagate through the first fibre, they generate an initial comb via a cascade of four-wave mixing processes. The frequency components of the comb are phase-correlated with the original laser lines and have a frequency spacing that is equal to the initial laser frequency separation (LFS), i.e. the difference in the laser frequencies. In the time domain, a train of pre-compressed pulses with widths of a few pico-seconds arises out of the initial bichromatic deeply-modulated cosine-wave. These pulses undergo strong compression in the subsequent amplifying Erbium-doped fibre: sub-100 fs pulses with broad OFC spectra are formed. In the following low-dispersion highly nonlinear fibre, the OFC experience a further broadening and the intensity of the comb lines are fairly equalised. This approach was mathematically modelled by means of a Generalised Nonlinear Schrödinger Equation (GNLS) that contains terms describing the nonlinear optical Kerr effect, the delayed Raman response, the pulse self-steepening, and the linear optical losses as well as the wavelength-dependent Erbium gain profile for the second fibre. The initial condition equation being a deeply-modulated cosine-wave mimics the radiation of the two initial CW lasers. The numerical studies are performed with the help of Matlab scripts that were specifically developed for the integration of the GNLS and the initial condition according to the proposed approach for the OFC generation. The scripts are based on the Fourth-Order Runge-Kutta in the Interaction Picture Method (RK4IP) in combination with the local error method. This work includes the studies and results on the length optimisation of the first and the second fibre depending on different values of the group-velocity dispersion of the first fibre. Such length optimisation studies are necessary because the OFC have the biggest possible broadband and exhibit a low level of noise exactly at the optimum lengths. Further, the optical pulse build-up in the first and the second fibre was studied by means of the numerical technique called Soliton Radiation Beat Analysis (SRBA). It was shown that a common soliton crystal state is formed in the first fibre for low laser input powers. The soliton crystal continuously dissolves into separated optical solitons as the input power increases. The pulse formation in the second fibre is critically dependent on the features of the pulses formed in the first fibre. I showed that, for low input powers, an adiabatic soliton compression delivering low-noise OFC occurs in the second fibre. At high input powers, the pulses in the first fibre have more complicated structures which leads to the pulse break-up in the second fibre with a subsequent degradation of the OFC noise performance. The pulse intensity noise studies that were performed within the framework of this thesis allow making statements about the noise performance of an OFC. They showed that the intensity noise of the whole system decreases with the increasing value of LFS.'] | ['gnd:1103251678', 'gnd:2120681-8', 'gnd:4143252-6', 'gnd:4167589-7', 'gnd:7633313-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86085468X'] | ['Zajnulina, Marina', 'Universität Potsdam', 'Astronomisches Instrument', 'Lichtleitfaser', 'Optischer Frequenzkamm'] | Document
### Title: ['Optical frequency comb generation in optical fibres']
### Abstract:
['Optical frequency combs (OFC) constitute an array of phase-correlated equidistant spectral lines with nearly equal intensities over a broad spectral range. The adaptations of combs generated in mode-locked lasers proved to be highly efficient for the calibration of high-resolution (resolving power > 50000) astronomical spectrographs. The observation of different galaxy structures or the studies of the Milky Way are done using instruments in the low- and medium resolution range. To such instruments belong, for instance, the Multi Unit Spectroscopic Explorer (MUSE) being developed for the Very Large Telescope (VLT) of the European Southern Observatory (ESO) and the 4-metre Multi-Object Spectroscopic Telescope (4MOST) being in development for the ESO VISTA 4.1 m Telescope. The existing adaptations of OFC from mode-locked lasers are not resolvable by these instruments. Within this work, a fibre-based approach for generation of OFC specifically in the low- and medium resolution range is studied numerically. This approach consists of three optical fibres that are fed by two equally intense continuous-wave (CW) lasers. The first fibre is a conventional single-mode fibre, the second one is a suitably pumped amplifying Erbium-doped fibre with anomalous dispersion, and the third one is a low-dispersion highly nonlinear optical fibre. The evolution of a frequency comb in this system is governed by the following processes: as the two initial CW-laser waves with different frequencies propagate through the first fibre, they generate an initial comb via a cascade of four-wave mixing processes. The frequency components of the comb are phase-correlated with the original laser lines and have a frequency spacing that is equal to the initial laser frequency separation (LFS), i.e. the difference in the laser frequencies. In the time domain, a train of pre-compressed pulses with widths of a few pico-seconds arises out of the initial bichromatic deeply-modulated cosine-wave. These pulses undergo strong compression in the subsequent amplifying Erbium-doped fibre: sub-100 fs pulses with broad OFC spectra are formed. In the following low-dispersion highly nonlinear fibre, the OFC experience a further broadening and the intensity of the comb lines are fairly equalised. This approach was mathematically modelled by means of a Generalised Nonlinear Schrödinger Equation (GNLS) that contains terms describing the nonlinear optical Kerr effect, the delayed Raman response, the pulse self-steepening, and the linear optical losses as well as the wavelength-dependent Erbium gain profile for the second fibre. The initial condition equation being a deeply-modulated cosine-wave mimics the radiation of the two initial CW lasers. The numerical studies are performed with the help of Matlab scripts that were specifically developed for the integration of the GNLS and the initial condition according to the proposed approach for the OFC generation. The scripts are based on the Fourth-Order Runge-Kutta in the Interaction Picture Method (RK4IP) in combination with the local error method. This work includes the studies and results on the length optimisation of the first and the second fibre depending on different values of the group-velocity dispersion of the first fibre. Such length optimisation studies are necessary because the OFC have the biggest possible broadband and exhibit a low level of noise exactly at the optimum lengths. Further, the optical pulse build-up in the first and the second fibre was studied by means of the numerical technique called Soliton Radiation Beat Analysis (SRBA). It was shown that a common soliton crystal state is formed in the first fibre for low laser input powers. The soliton crystal continuously dissolves into separated optical solitons as the input power increases. The pulse formation in the second fibre is critically dependent on the features of the pulses formed in the first fibre. I showed that, for low input powers, an adiabatic soliton compression delivering low-noise OFC occurs in the second fibre. At high input powers, the pulses in the first fibre have more complicated structures which leads to the pulse break-up in the second fibre with a subsequent degradation of the OFC noise performance. The pulse intensity noise studies that were performed within the framework of this thesis allow making statements about the noise performance of an OFC. They showed that the intensity noise of the whole system decreases with the increasing value of LFS.']
### GND ID:
['gnd:1103251678', 'gnd:2120681-8', 'gnd:4143252-6', 'gnd:4167589-7', 'gnd:7633313-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86085468X']
### GND class:
['Zajnulina, Marina', 'Universität Potsdam', 'Astronomisches Instrument', 'Lichtleitfaser', 'Optischer Frequenzkamm']
<|eot_id|> |
3A861094697.jsonld | ['Status concerns, present-bias and the public provision of private goods'] | ['Public provision of private goods, status concerns, present-bias. - Staatliche Bereitstellung privater Güter, Statuspräferenzen'] | ['gnd:4043150-2', 'gnd:4062644-1', 'gnd:4197168-1', 'gnd:64681-7', 'gnd:7751254-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861094697'] | ['Öffentliche Leistung', 'Verbraucherverhalten', 'Präferenzrelation', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Verhaltensökonomie'] | Document
### Title: ['Status concerns, present-bias and the public provision of private goods']
### Abstract:
['Public provision of private goods, status concerns, present-bias. - Staatliche Bereitstellung privater Güter, Statuspräferenzen']
### GND ID:
['gnd:4043150-2', 'gnd:4062644-1', 'gnd:4197168-1', 'gnd:64681-7', 'gnd:7751254-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861094697']
### GND class:
['Öffentliche Leistung', 'Verbraucherverhalten', 'Präferenzrelation', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Verhaltensökonomie']
<|eot_id|> |
3A861427564.jsonld | ['Literatur im Kontext phänomenologischer Wahrnehmungstheorie : M. Blechers Poetik des Empfindens'] | ['"This study examines the prose works of the Romanian writer M. Blecher in the context of modern philosophies of perception, from Bergson and Husserl through Merleau-Ponty and Deleuze. It shows that Blecher\'s poetics of remembrance was a literary-phenomenological quest for authentic or alternative access points to the world between reality and unreality. Its focus is on figurations of experience in crisis and situations of physical marginality."--'] | ['gnd:10095502-2', 'gnd:1083807110', 'gnd:118943308', 'gnd:2114189-7', 'gnd:4045660-2', 'gnd:4046449-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861427564'] | ['Walter de Gruyter GmbH & Co. KG', 'Peter, Carmina', ['Blecher, M.', 'Blecher, M. 1909-1938'], 'Freie Universität Berlin', 'Phänomenologie', 'Poetik'] | Document
### Title: ['Literatur im Kontext phänomenologischer Wahrnehmungstheorie : M. Blechers Poetik des Empfindens']
### Abstract:
['"This study examines the prose works of the Romanian writer M. Blecher in the context of modern philosophies of perception, from Bergson and Husserl through Merleau-Ponty and Deleuze. It shows that Blecher\'s poetics of remembrance was a literary-phenomenological quest for authentic or alternative access points to the world between reality and unreality. Its focus is on figurations of experience in crisis and situations of physical marginality."--']
### GND ID:
['gnd:10095502-2', 'gnd:1083807110', 'gnd:118943308', 'gnd:2114189-7', 'gnd:4045660-2', 'gnd:4046449-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861427564']
### GND class:
['Walter de Gruyter GmbH & Co. KG', 'Peter, Carmina', ['Blecher, M.', 'Blecher, M. 1909-1938'], 'Freie Universität Berlin', 'Phänomenologie', 'Poetik']
<|eot_id|> |
3A861633016.jsonld | ['Modelling surface evolution coupled with tectonics : a case study for the Pamir'] | ["This study presents the development of 1D and 2D Surface Evolution Codes (SECs) and their coupling to any lithospheric-scale (thermo-)mechanical code with a quadrilateral structured surface mesh. Both SECs involve diffusion as approach for hillslope processes and the stream power law to reflect riverbed incision. The 1D SEC settles sediment that was produced by fluvial incision in the appropriate minimum, while the supply-limited 2D SEC DANSER uses a fast filling algorithm to model sedimantation. It is based on a cellular automaton. A slope-dependent factor in the sediment flux extends the diffusion equation to nonlinear diffusion. The discharge accumulation is achieved with the D8-algorithm and an improved drainage accumulation routine. Lateral incision enhances the incision's modelling. Following empirical laws, it incises channels of several cells width. The coupling method enables different temporal and spatial resolutions of the SEC and the thermo-mechanical code. It transfers vertical as well as horizontal displacements to the surface model. A weighted smoothing of the 3D surface displacements is implemented. The smoothed displacement vectors transmit the deformation by bilinear interpolation to the surface model. These interpolation methods ensure mass conservation in both directions and prevent the two surfaces from drifting apart. The presented applications refer to the evolution of the Pamir orogen. A calibration of DANSER's parameters with geomorphological data and a DEM as initial topography highlights the advantage of lateral incision. Preserving the channel width and reflecting incision peaks in narrow channels, this closes the huge gap between current orogen-scale incision models and observed topographies. River capturing models in a system of fault-bounded block rotations reaffirm the importance of the lateral incision routine for capturing events with channel initiation. The models show a low probability of river capturings with large deflection angles. While the probability of river capturing is directly depending on the uplift rate, the erodibility inside of a dip-slip fault speeds up headward erosion along the fault: The model's capturing speed increases within a fault. Coupling DANSER with the thermo-mechanical code SLIM 3D emphasizes the versatility of the SEC. While DANSER has minor influence on the lithospheric evolution of an indenter model, the brittle surface deformation is strongly affected by its sedimentation, widening a basin in between two forming orogens and also the southern part of the southern orogen to south, east and west."] | ['gnd:1049859308', 'gnd:1104145162', 'gnd:2120681-8', 'gnd:4015366-6', 'gnd:4044435-1', 'gnd:4059351-4', 'gnd:4338132-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861633016'] | ['Weber, Michael', 'Schröder, Sarah', 'Universität Potsdam', 'Erosion', 'Pamir', 'Tektonik', 'Numerisches Modell'] | Document
### Title: ['Modelling surface evolution coupled with tectonics : a case study for the Pamir']
### Abstract:
["This study presents the development of 1D and 2D Surface Evolution Codes (SECs) and their coupling to any lithospheric-scale (thermo-)mechanical code with a quadrilateral structured surface mesh. Both SECs involve diffusion as approach for hillslope processes and the stream power law to reflect riverbed incision. The 1D SEC settles sediment that was produced by fluvial incision in the appropriate minimum, while the supply-limited 2D SEC DANSER uses a fast filling algorithm to model sedimantation. It is based on a cellular automaton. A slope-dependent factor in the sediment flux extends the diffusion equation to nonlinear diffusion. The discharge accumulation is achieved with the D8-algorithm and an improved drainage accumulation routine. Lateral incision enhances the incision's modelling. Following empirical laws, it incises channels of several cells width. The coupling method enables different temporal and spatial resolutions of the SEC and the thermo-mechanical code. It transfers vertical as well as horizontal displacements to the surface model. A weighted smoothing of the 3D surface displacements is implemented. The smoothed displacement vectors transmit the deformation by bilinear interpolation to the surface model. These interpolation methods ensure mass conservation in both directions and prevent the two surfaces from drifting apart. The presented applications refer to the evolution of the Pamir orogen. A calibration of DANSER's parameters with geomorphological data and a DEM as initial topography highlights the advantage of lateral incision. Preserving the channel width and reflecting incision peaks in narrow channels, this closes the huge gap between current orogen-scale incision models and observed topographies. River capturing models in a system of fault-bounded block rotations reaffirm the importance of the lateral incision routine for capturing events with channel initiation. The models show a low probability of river capturings with large deflection angles. While the probability of river capturing is directly depending on the uplift rate, the erodibility inside of a dip-slip fault speeds up headward erosion along the fault: The model's capturing speed increases within a fault. Coupling DANSER with the thermo-mechanical code SLIM 3D emphasizes the versatility of the SEC. While DANSER has minor influence on the lithospheric evolution of an indenter model, the brittle surface deformation is strongly affected by its sedimentation, widening a basin in between two forming orogens and also the southern part of the southern orogen to south, east and west."]
### GND ID:
['gnd:1049859308', 'gnd:1104145162', 'gnd:2120681-8', 'gnd:4015366-6', 'gnd:4044435-1', 'gnd:4059351-4', 'gnd:4338132-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861633016']
### GND class:
['Weber, Michael', 'Schröder, Sarah', 'Universität Potsdam', 'Erosion', 'Pamir', 'Tektonik', 'Numerisches Modell']
<|eot_id|> |
3A861695593.jsonld | ['Multiple contrast tests with repeated and multiple endpoints : with biological applications'] | ['Longitudinal data, linear mixed-effects model, multiple hypothesis tests, simultaneous confidence intervals, degrees of freedom, missing values. - Longitudinale Daten, lineares gemischtes Modell, multiple Hypothesentests, simultane Konfidenzintervalle, Freiheitsgrade, fehlende Werte'] | ['gnd:4729990-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861695593'] | ['Biostatistik', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Multiple contrast tests with repeated and multiple endpoints : with biological applications']
### Abstract:
['Longitudinal data, linear mixed-effects model, multiple hypothesis tests, simultaneous confidence intervals, degrees of freedom, missing values. - Longitudinale Daten, lineares gemischtes Modell, multiple Hypothesentests, simultane Konfidenzintervalle, Freiheitsgrade, fehlende Werte']
### GND ID:
['gnd:4729990-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A861695593']
### GND class:
['Biostatistik', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A862087988.jsonld | ['Connectivity of Boolean satisfiability'] | ["Komplexität, Erfüllbarkeit, Zusammenhang in Graphen, Boolesche CSPs, Boolesche Schaltkreise, Post'scher Verband, Dichotomien. - Computational complexity, Boolean satisfiability, graph connectivity, Boolean CSPs, Boolean circuits, Post's lattice, dichotomy theorems"] | ['gnd:1109769911', 'gnd:121026027', 'gnd:132043599', 'gnd:4323820-8', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862087988'] | ['Schwerdtfeger, Konrad W.', 'Vollmer, Heribert', 'Beyersdorff, Olaf', 'Erfüllbarkeitsproblem', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Connectivity of Boolean satisfiability']
### Abstract:
["Komplexität, Erfüllbarkeit, Zusammenhang in Graphen, Boolesche CSPs, Boolesche Schaltkreise, Post'scher Verband, Dichotomien. - Computational complexity, Boolean satisfiability, graph connectivity, Boolean CSPs, Boolean circuits, Post's lattice, dichotomy theorems"]
### GND ID:
['gnd:1109769911', 'gnd:121026027', 'gnd:132043599', 'gnd:4323820-8', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862087988']
### GND class:
['Schwerdtfeger, Konrad W.', 'Vollmer, Heribert', 'Beyersdorff, Olaf', 'Erfüllbarkeitsproblem', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A862091888.jsonld | ['Verhalten reaktiver Brandschutzsysteme auf kreisförmigen Zuggliedern aus Blank- und Baustahl'] | ['Brandschutz, Stahl, Zugglied, reaktive Brandschutzsysteme, Blankstahl, Materialeigenschaften, experimentelle Untersuchungen, numerische Simulation. - Fire protection, steel, tension member, reactive fire protection system, intumescent coating, cold-drawn steel, material properties, experimental study, numerical simulation'] | ['gnd:1071661256', 'gnd:110141342', 'gnd:1141239396', 'gnd:4004940-1', 'gnd:4007974-0', 'gnd:4160294-8', 'gnd:4191117-9', 'gnd:4244877-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862091888'] | ['Häßler, Dustin', 'Schaumann, Peter', 'Mensinger, Martin', 'Baustahl', 'Brandschutz', 'Hochtemperaturverhalten', 'Zugstab', 'Blankstahl', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Verhalten reaktiver Brandschutzsysteme auf kreisförmigen Zuggliedern aus Blank- und Baustahl']
### Abstract:
['Brandschutz, Stahl, Zugglied, reaktive Brandschutzsysteme, Blankstahl, Materialeigenschaften, experimentelle Untersuchungen, numerische Simulation. - Fire protection, steel, tension member, reactive fire protection system, intumescent coating, cold-drawn steel, material properties, experimental study, numerical simulation']
### GND ID:
['gnd:1071661256', 'gnd:110141342', 'gnd:1141239396', 'gnd:4004940-1', 'gnd:4007974-0', 'gnd:4160294-8', 'gnd:4191117-9', 'gnd:4244877-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862091888']
### GND class:
['Häßler, Dustin', 'Schaumann, Peter', 'Mensinger, Martin', 'Baustahl', 'Brandschutz', 'Hochtemperaturverhalten', 'Zugstab', 'Blankstahl', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A862404037.jsonld | ['Untersuchungen zur Biosynthese von Polyketiden : Studien zur in-vitro-Aktivität der Tailoring-Enzyme aus der Jerangolid-Biosynthese'] | ['Jerangolide, Polyketid-Biosynthese, Biokatalyse. - Jerangolids, polyketide biosynthesis, biocatalysis'] | ['gnd:4145610-5', 'gnd:4166378-0', 'gnd:4276195-5', 'gnd:4614274-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862404037'] | ['Biokonversion', 'Lactone', 'Methyltransferasen', 'Jerangolide', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Untersuchungen zur Biosynthese von Polyketiden : Studien zur in-vitro-Aktivität der Tailoring-Enzyme aus der Jerangolid-Biosynthese']
### Abstract:
['Jerangolide, Polyketid-Biosynthese, Biokatalyse. - Jerangolids, polyketide biosynthesis, biocatalysis']
### GND ID:
['gnd:4145610-5', 'gnd:4166378-0', 'gnd:4276195-5', 'gnd:4614274-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862404037']
### GND class:
['Biokonversion', 'Lactone', 'Methyltransferasen', 'Jerangolide', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A862540178.jsonld | ['Zink(II)-Imidazolat-Gerüste mit 4,5-disubstituierten Brückenliganden : Untersuchungen zur Bildung metastabiler Phasen und deren Charakterisierung'] | ['Zeolithische Imidazolat-Gerüste, Nanokristalle, hierarchisch poröse Nanomaterialien, Polymorphie, Linkerfehlordnung, Gerüstflexibilität. - Zeolitic imidazolate frameworks, nanocrystals, hierarchically porous nanomaterials, polymorphism, linker disorder, framework flexibility'] | ['gnd:110097769', 'gnd:173935540', 'gnd:4161308-9', 'gnd:4509028-2', 'gnd:64681-7', 'gnd:7755315-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862540178'] | ['Buhl, Josef-Christian', 'Behrens, Peter', 'Imidazolderivate', 'Mesoporöser Kristall', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Metallorganisches Netzwerk'] | Document
### Title: ['Zink(II)-Imidazolat-Gerüste mit 4,5-disubstituierten Brückenliganden : Untersuchungen zur Bildung metastabiler Phasen und deren Charakterisierung']
### Abstract:
['Zeolithische Imidazolat-Gerüste, Nanokristalle, hierarchisch poröse Nanomaterialien, Polymorphie, Linkerfehlordnung, Gerüstflexibilität. - Zeolitic imidazolate frameworks, nanocrystals, hierarchically porous nanomaterials, polymorphism, linker disorder, framework flexibility']
### GND ID:
['gnd:110097769', 'gnd:173935540', 'gnd:4161308-9', 'gnd:4509028-2', 'gnd:64681-7', 'gnd:7755315-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862540178']
### GND class:
['Buhl, Josef-Christian', 'Behrens, Peter', 'Imidazolderivate', 'Mesoporöser Kristall', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Metallorganisches Netzwerk']
<|eot_id|> |
3A862555213.jsonld | ['Synthesis and applications of biscyclopropenium phosphines as ancillary ligands in catalysis'] | ['The aim of this thesis was the design of new strong π‐acceptor ligands. In our approach two cyclopropenium substituents were attached to the phosphorus atom of the phosphine in order to introduce enhanced π-acceptor character. These biscyclopropenium phosphines, unlike their polyhalogenated analogues (PF3, P(CF3)3 and PCl3), were air stable. While the variation of the third (non-cationic) substituent attached to the phosphorus of the dicationic phosphine allowed further modification of its electronic properties, the decoration of one cyclopropenium unit with longer aliphatic chains facilitated the solution of the charged species in non-polar solvents like toluene. Furthermore, the BF4- counter-ion of some of the prepared phosphines was exchanged for SbF6- in order to investigate its influence on the reactivity in catalysis later on. Subsequent coordination of these dicationic phosphines to various transition metals afforded the corresponding Au(I), Pt(II), Ir(I) and Ag(I) complexes. The reactivity of the prepared dicationic Au(I)-precatalysts was investigated in the 6-endo-dig cycolisomerization of biphenyl-alkynes with two substituents in internal positions to their corresponding phenanthrene derivatives. After successful optimization, this methodology was applied in the synthesis Calanquinone C. Finally, the substrate scope of the utilized Au(I)-precatalysts was expanded from the synthesis of phenanthrene derivatives to the preparation of naphto-furans. ; Das Ziel dieser Arbeit war es neue starke π-Akkzeptor Liganden herzustellen. In unserer Herangehensweise wurden zwei Cyclopropenium-Substituenten an das Phosphoratom des hergestellten Phosphins gebunden, um einen verstärkten π-Akkzeptor Charakter einzuführen. Diese synthetisierten Biscyclopropeniumphosphine waren luftstabil im Gegensatz zu ihren polyhalogenierten Analogen (PF3, P(CF3)3 und PCl3). Die Variation des dritten (nicht-kationischen) Substituenten, der an das Phosphoratom des dikationischen Phosphins gebunden ist, erlaubt die Modifikation der elektronischen Eigenschaften der jeweiligen Verbindung. Die Anbringung längerer aliphatischer Ketten an die Cyclopropeniumeinheit ermöglicht die vollständige Lösung des dikationischen Phosphins in nicht-polaren Lösungsmitteln wie Toluol. Außerdem wurde für einige der hergestellten Phosphine das BF4- Gegenion für SbF6- ausgetauscht, um später seinen Einfluss auf die Reakivität in der Katalyse zu untersuchen. Die anschließende Koordinierung dieser dikationischen Phosphine an Übergangsmetalle resultierte in der Isolation der jeweiligen Au(I)-, Pt(II)-, Ir(I)- und Ag(I)- Komplexe. Die Reaktivität der hergestellten Au(I)-präkatalysatoren wurde in der Cycloisomerisierung von Biphenyl-Alkinen mit zwei Substituenten in internen Postionen zu den jeweiligen Phenanthrenderivaten untersucht. Nach erfolgreicher Optimierung wurde diese Methodik in der Synthese von Calanchinon C angewendet. Schließlich wurde der Anwendungsbereich der verwendeten Au(I)-präkatalysatoren von der Synthese von Phenanthrenderivaten zur Herstellung von Naphto-furanen erweitert.'] | ['gnd:1101948973', 'gnd:4029919-3', 'gnd:4131837-7', 'gnd:4174379-9', 'gnd:7524451-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862555213'] | ['Linowski, Pawel Mateusz', 'Katalysator', 'Übergangsmetallkomplexe', 'Phosphine', 'Cycloisomerisierung'] | Document
### Title: ['Synthesis and applications of biscyclopropenium phosphines as ancillary ligands in catalysis']
### Abstract:
['The aim of this thesis was the design of new strong π‐acceptor ligands. In our approach two cyclopropenium substituents were attached to the phosphorus atom of the phosphine in order to introduce enhanced π-acceptor character. These biscyclopropenium phosphines, unlike their polyhalogenated analogues (PF3, P(CF3)3 and PCl3), were air stable. While the variation of the third (non-cationic) substituent attached to the phosphorus of the dicationic phosphine allowed further modification of its electronic properties, the decoration of one cyclopropenium unit with longer aliphatic chains facilitated the solution of the charged species in non-polar solvents like toluene. Furthermore, the BF4- counter-ion of some of the prepared phosphines was exchanged for SbF6- in order to investigate its influence on the reactivity in catalysis later on. Subsequent coordination of these dicationic phosphines to various transition metals afforded the corresponding Au(I), Pt(II), Ir(I) and Ag(I) complexes. The reactivity of the prepared dicationic Au(I)-precatalysts was investigated in the 6-endo-dig cycolisomerization of biphenyl-alkynes with two substituents in internal positions to their corresponding phenanthrene derivatives. After successful optimization, this methodology was applied in the synthesis Calanquinone C. Finally, the substrate scope of the utilized Au(I)-precatalysts was expanded from the synthesis of phenanthrene derivatives to the preparation of naphto-furans. ; Das Ziel dieser Arbeit war es neue starke π-Akkzeptor Liganden herzustellen. In unserer Herangehensweise wurden zwei Cyclopropenium-Substituenten an das Phosphoratom des hergestellten Phosphins gebunden, um einen verstärkten π-Akkzeptor Charakter einzuführen. Diese synthetisierten Biscyclopropeniumphosphine waren luftstabil im Gegensatz zu ihren polyhalogenierten Analogen (PF3, P(CF3)3 und PCl3). Die Variation des dritten (nicht-kationischen) Substituenten, der an das Phosphoratom des dikationischen Phosphins gebunden ist, erlaubt die Modifikation der elektronischen Eigenschaften der jeweiligen Verbindung. Die Anbringung längerer aliphatischer Ketten an die Cyclopropeniumeinheit ermöglicht die vollständige Lösung des dikationischen Phosphins in nicht-polaren Lösungsmitteln wie Toluol. Außerdem wurde für einige der hergestellten Phosphine das BF4- Gegenion für SbF6- ausgetauscht, um später seinen Einfluss auf die Reakivität in der Katalyse zu untersuchen. Die anschließende Koordinierung dieser dikationischen Phosphine an Übergangsmetalle resultierte in der Isolation der jeweiligen Au(I)-, Pt(II)-, Ir(I)- und Ag(I)- Komplexe. Die Reaktivität der hergestellten Au(I)-präkatalysatoren wurde in der Cycloisomerisierung von Biphenyl-Alkinen mit zwei Substituenten in internen Postionen zu den jeweiligen Phenanthrenderivaten untersucht. Nach erfolgreicher Optimierung wurde diese Methodik in der Synthese von Calanchinon C angewendet. Schließlich wurde der Anwendungsbereich der verwendeten Au(I)-präkatalysatoren von der Synthese von Phenanthrenderivaten zur Herstellung von Naphto-furanen erweitert.']
### GND ID:
['gnd:1101948973', 'gnd:4029919-3', 'gnd:4131837-7', 'gnd:4174379-9', 'gnd:7524451-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862555213']
### GND class:
['Linowski, Pawel Mateusz', 'Katalysator', 'Übergangsmetallkomplexe', 'Phosphine', 'Cycloisomerisierung']
<|eot_id|> |
3A862693306.jsonld | ['Probing the herbivore’s responses to plant defenses using plant-mediated RNAi'] | ["Nicotiana attenuata (Solanaceae) produces 17-hydroxygeranyllinalool diterpene glycosides (HGL-DTGs) in starch-equivalent concentrations that thwart the growth of its specialist lepidopteran herbivore Manduca sexta (Lepidoptera, Sphingidae). Lyciumoside IV and its malonylated forms, nicotianoside I and II, constitute ~80% of N. attenuata’s HGL-DTG pool. Upon ingestion, the malonylated forms are rapidly and non-enzymatically demalonylated to lyciumoside IV by the alkalinity of larval oral secretion. Ingested lyciumoside IV (44%) is excreted as a novel compound, 3-O-α-L-rhamnopyranosyl-(1-4)-β-D-glucopyranosyl-17-hydroxygeranyllinalool (RGHGL). It differs from lyciumoside IV only in its lack of the C-17-glucose. Of M. sexta's midgut-expressed β-glucosidases, only β-glucosidase1 is upregulated upon lyciumoside IV ingestion, and when silenced by plant-mediated RNAi (PMRi), larvae are impaired in lyciumoside IV deglucosylation and showed molting impairments and higher mortality than control larvae. To examine the consequences of this detoxification process on natural tritrophic interactions, β-glucosidase1-silencing PMRi plants were planted into native habitats; control and β-glucosidase1-silenced larvae’s survival was similar; however, while Camptocosa parallela spiders captured and killed the control and lyciumoside IV-replete β-glucosidase1-silenced larvae similarly, the spiders ingested only 25% of β-glucosidase1-silenced larvae and ingestion resulted in locomotor distress in the spiders. While spiders attacked and ingested RGHGL-coated or -ingested larvae equally, they were deterred by the lyciumoside IV-coated larvae. Although lyciumoside IV deters spiders, it is not defensively co-opted by M. sexta larvae, perhaps to avoid its deleterious effects such as molting impairment and mortality. We further show that these PMRi plants also silence the homologous genes in native M. quinquemaculata larvae, feeding on these transgenic plants in nature."] | ['gnd:1102956295', 'gnd:36164-1', 'gnd:4051952-1', 'gnd:4052831-5', 'gnd:4122166-7', 'gnd:4136670-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862693306'] | ['Poreddy, Spoorthi', 'Friedrich-Schiller-Universität Jena', 'Schädlingsbekämpfung', 'Schmetterlinge', 'Genregulation', 'Tabak'] | Document
### Title: ['Probing the herbivore’s responses to plant defenses using plant-mediated RNAi']
### Abstract:
["Nicotiana attenuata (Solanaceae) produces 17-hydroxygeranyllinalool diterpene glycosides (HGL-DTGs) in starch-equivalent concentrations that thwart the growth of its specialist lepidopteran herbivore Manduca sexta (Lepidoptera, Sphingidae). Lyciumoside IV and its malonylated forms, nicotianoside I and II, constitute ~80% of N. attenuata’s HGL-DTG pool. Upon ingestion, the malonylated forms are rapidly and non-enzymatically demalonylated to lyciumoside IV by the alkalinity of larval oral secretion. Ingested lyciumoside IV (44%) is excreted as a novel compound, 3-O-α-L-rhamnopyranosyl-(1-4)-β-D-glucopyranosyl-17-hydroxygeranyllinalool (RGHGL). It differs from lyciumoside IV only in its lack of the C-17-glucose. Of M. sexta's midgut-expressed β-glucosidases, only β-glucosidase1 is upregulated upon lyciumoside IV ingestion, and when silenced by plant-mediated RNAi (PMRi), larvae are impaired in lyciumoside IV deglucosylation and showed molting impairments and higher mortality than control larvae. To examine the consequences of this detoxification process on natural tritrophic interactions, β-glucosidase1-silencing PMRi plants were planted into native habitats; control and β-glucosidase1-silenced larvae’s survival was similar; however, while Camptocosa parallela spiders captured and killed the control and lyciumoside IV-replete β-glucosidase1-silenced larvae similarly, the spiders ingested only 25% of β-glucosidase1-silenced larvae and ingestion resulted in locomotor distress in the spiders. While spiders attacked and ingested RGHGL-coated or -ingested larvae equally, they were deterred by the lyciumoside IV-coated larvae. Although lyciumoside IV deters spiders, it is not defensively co-opted by M. sexta larvae, perhaps to avoid its deleterious effects such as molting impairment and mortality. We further show that these PMRi plants also silence the homologous genes in native M. quinquemaculata larvae, feeding on these transgenic plants in nature."]
### GND ID:
['gnd:1102956295', 'gnd:36164-1', 'gnd:4051952-1', 'gnd:4052831-5', 'gnd:4122166-7', 'gnd:4136670-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862693306']
### GND class:
['Poreddy, Spoorthi', 'Friedrich-Schiller-Universität Jena', 'Schädlingsbekämpfung', 'Schmetterlinge', 'Genregulation', 'Tabak']
<|eot_id|> |
3A862706009.jsonld | ['Strategies to detect genetic diversity in plants'] | ['Next-generation sequencing can provide access to the genomic sequence of even large and complex plant genomes. Three major strategies exist to assess the genomic information of a species at different scales and complexity levels: transcriptome, target capture and whole-genome shotgun sequencing. The scope of this thesis was to evaluate each concept, ascertain its potential for the discovery of genetic diversity, and develop methods for their improvement. With these objectives, the economically important crops rye, maize and barley were investigated to reveal novel insights into their genetic diversity. The study constructed the first rye transcriptome reference that was utilized for variant discovery revealing ~18,000 single nucleotide variants (SNVs) in coding regions. Subsequently, this resource was converted into a genotyping assay (RYE5k) for application e.g. in breeding programs. The identification of genomic variants requires a high degree of accuracy. Two methods were developed to increase the accuracy in the process of variant discovery: the ‘combinatorial variant calling’ and the approach of ‘k-mer repeat investigation’. With the first method, the reliability of variant calling was increased by the interlaced support and analysis of multiple detection procedures. The approach was successfully applied to determine the diversity in biomass-related genes of maize. Hereby, the applied capture sequencing approach revealed 86,875 SNVs in coding regions. The second method was motivated by the complexity of the large and repetitive barley genome. Therefore, k-mer analyses were used to gain knowledge of repetitive features and this resulted in greater precision in variant calling. The positive effect was shown in a genome-wide diversity study of barley. As a result, more than 15 million high-quality SNVs were identified in five cultivars and a wild progenitor of cultivated barley. The study successfully revealed novel insights into the genetic diversity of barley.'] | ['gnd:110303264X', 'gnd:36164-1', 'gnd:4033576-8', 'gnd:4156640-3', 'gnd:4485409-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862706009'] | ['Schmutzer, Thomas', 'Friedrich-Schiller-Universität Jena', 'Kulturpflanzen', 'Genom', 'Sequenzdaten'] | Document
### Title: ['Strategies to detect genetic diversity in plants']
### Abstract:
['Next-generation sequencing can provide access to the genomic sequence of even large and complex plant genomes. Three major strategies exist to assess the genomic information of a species at different scales and complexity levels: transcriptome, target capture and whole-genome shotgun sequencing. The scope of this thesis was to evaluate each concept, ascertain its potential for the discovery of genetic diversity, and develop methods for their improvement. With these objectives, the economically important crops rye, maize and barley were investigated to reveal novel insights into their genetic diversity. The study constructed the first rye transcriptome reference that was utilized for variant discovery revealing ~18,000 single nucleotide variants (SNVs) in coding regions. Subsequently, this resource was converted into a genotyping assay (RYE5k) for application e.g. in breeding programs. The identification of genomic variants requires a high degree of accuracy. Two methods were developed to increase the accuracy in the process of variant discovery: the ‘combinatorial variant calling’ and the approach of ‘k-mer repeat investigation’. With the first method, the reliability of variant calling was increased by the interlaced support and analysis of multiple detection procedures. The approach was successfully applied to determine the diversity in biomass-related genes of maize. Hereby, the applied capture sequencing approach revealed 86,875 SNVs in coding regions. The second method was motivated by the complexity of the large and repetitive barley genome. Therefore, k-mer analyses were used to gain knowledge of repetitive features and this resulted in greater precision in variant calling. The positive effect was shown in a genome-wide diversity study of barley. As a result, more than 15 million high-quality SNVs were identified in five cultivars and a wild progenitor of cultivated barley. The study successfully revealed novel insights into the genetic diversity of barley.']
### GND ID:
['gnd:110303264X', 'gnd:36164-1', 'gnd:4033576-8', 'gnd:4156640-3', 'gnd:4485409-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862706009']
### GND class:
['Schmutzer, Thomas', 'Friedrich-Schiller-Universität Jena', 'Kulturpflanzen', 'Genom', 'Sequenzdaten']
<|eot_id|> |
3A862735343.jsonld | ['The role of histone modifications in gene regulation : from C4 genes to a genome-wide exploration along the maize leaf gradient'] | ['Histone modification, gene regulation, C4 photosynthesis. - Histonmodifikationen, Genregulation, C4 Photosynthese'] | ['gnd:4037135-9', 'gnd:4122166-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862735343'] | ['Mais', 'Genregulation', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['The role of histone modifications in gene regulation : from C4 genes to a genome-wide exploration along the maize leaf gradient']
### Abstract:
['Histone modification, gene regulation, C4 photosynthesis. - Histonmodifikationen, Genregulation, C4 Photosynthese']
### GND ID:
['gnd:4037135-9', 'gnd:4122166-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862735343']
### GND class:
['Mais', 'Genregulation', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A862804043.jsonld | ['Fähigkeitsselbstkonzept, Selbstwirksamkeit & Mindset – Wie können Lehrkräfte Erkenntnisse aus der Sozial-Kognitiven-Psychologie nutzen, um die Potenzialentfaltung von Schülerinnen und Schülern zu fördern? : Stephan Breidenbach'] | [['Starting from the research question, how social-cognitive-psychology may help teachers to enable their students to unfold their full academic potential this dissertation introduces the matrix of unfolding potential as a tool for teachers to diagnose and support their students. The theoretical part gives an overview of the existing research concerning academic self-concept, self-efficacy and mindset theory as well as their impact on students’ motivation and achievement. Based on 20 forty to eighty minute, half-structured expert interviews, the following empirical part of the dissertation then describes the status quo in schools and different practical measures to implement the theories presented in the theoretical part. As a result, more than three quarter of the consulted teachers states that psychological knowledge is important for their daily work. Additionally, each expert is able to name at least two sources of his/her psychological knowledge. By far the most experts (17 out of 20 teachers) gained their psychological knowledge from their university studies, followed by their mandatory traineeship called “Referendariat” (12 out of 20 teachers) and their daily work (11 out of 20 teachers). In total, many experts evaluate their psychological preparation for their job as a teacher as insufficient. Therefore, a majority of 16 out of the 20 experts agrees with the thesis of this dissertation that students don’t unfold their full achievement potential because teachers don’t use (or don’t know how to use) psychological theories adequately in school. The conducted qualitative content analyses show that the process of building up psychological knowledge is unsystematic and individually different for teachers. Only learning psychology theories seem to be quickly available for three quarter of the interviewed teachers. In contrast, the teachers’ knowledge from domains such as developmental, communication and social psychology shows room for improvement in terms of scope and depth. Similarly, theories from social-cognitive-psychology such as academic self-concept, self-efficacy and mindset theory are unknown to the majority of experts. Nevertheless – after being introduced to the social-cognitive theories by the interviewer –the consulted teachers altogether are able to name 25 measures how teachers can support their students based on academic self-concept, self-efficacy and mindset theory. Chapter four finally combines all the theoretical and empirical findings collected in this dissertation to develop the matrix of unfolding potential. The dimensions of the matrix are mindset theory (Carol S. Dweck) horizontally and self-efficacy theory (Albert Bandura) vertically. The purpose of this tool is to allow teachers a structured and systematic application of support measures in order to help students to develop a growth mindset and high self-efficacy so that they can unfold their full academic achievement potential.…', 'Ausgehend von der Frage, wie Erkenntnisse aus der Sozial-Kognitiven-Psychologie Lehrkräfte dabei unterstützen können, dass Schüler ihr volles Leistungspotenzial abrufen, wird in dieser Forschungsarbeit die Potenzialentfaltungsmatrix als Diagnose- und Förderinstrument für die Schulpraxis entwickelt. Im Theorieteil werden dazu die Theorien zu Fähigkeitsselbstkonzept, Selbstwirksamkeit und Mindset sowie ihre Bedeutung für die Motivation und das Verhalten von Schülern dargestellt. Auf Grundlage von 20 vierzig- bis achtzigminütigen, halbstrukturierten Experteninterviews mit Lehrkräften von Realschulen und Gymnasien werden dann im empirischen Teil dieser Arbeit zunächst der Status Quo in Schule und anschließend verschiedene Maßnahmen zur praktischen Umsetzung der oben angesprochenen sozial-kognitiven Theorien beschrieben. Das Ergebnis ist, dass mehr als dreiviertel der befragten Lehrkräfte psychologische Erkenntnisse als wichtig für ihren Berufsalltag erachten. Zudem beschreibt jede interviewte Lehrkraft mindestens zwei Zugänge, über die sie ihr psychologisches Wissen aufgebaut hat. Das Universitätsstudium (17 von 20 Lehrkräften) ist der mit Abstand am meisten genutzte Zugang, gefolgt vom Referendariat (12 von 20 Lehrkräften) und dem schulischen Alltag (11 von 20 Lehrkräften). Insgesamt bewerten viele Lehrkräfte ihre psychologische Vorbereitung auf den Berufsalltag dennoch als unzureichend, so dass 16 von 20 Experten der in dieser Arbeit aufgeworfenen These zustimmen, dass Schülerpotenzial ungenutzt bleibt, weil Lehrkräfte psychologische Erkenntnisse im Schullalltag nicht ausreichend nutzen (können). Die qualitativen Inhaltsanalysen ergänzen, dass der Aufbau von psychologischem Handlungswissen bei Lehrkräften bisher unsystematisch und individuell erfolgt. Lediglich fundierte lernpsychologische Erkenntnisse sind bei drei Vierteln der Lehrkräfte vorhanden. Das Wissen in den Bereichen Entwicklungs-, Kommunikations- und Sozialpsychologie ist bei den Experten dagegen in seiner Breite und Tiefe noch stark ausbaufähig. Die Theorien der Sozial-Kognitiven-Psychologie zu Selbstwirksamkeit, Mindset und Fähigkeitsselbstkonzept sind der Mehrheit der befragten Lehrer nicht bekannt. Dennoch können sie – nach Darstellung der Theorien durch den Interviewer – insgesamt 25 Maßnahmen nennen, wie Lehrkräfte Schüler auf Grundlage dieser Theorien fördern können. Die in Kapitel 4 entwickelte Potenzialentfaltungsmatrix, mit den Dimensionen Mindset (Carol S. Dweck) und Selbstwirksamkeit (Albert Bandura), kombiniert schließlich die in dieser Arbeit zusammengetragenen theoretischen und empirischen Erkenntnisse. Ziel ist es, Lehrkräften eine strukturierte und systematische Anwendung von Fördermaßnahmen zu ermöglichen, um den Schülern ein dynamisches Mindset und eine hohe Selbstwirksamkeit zu vermitteln.…']] | ['gnd:4053369-4', 'gnd:4074166-7', 'gnd:4181974-3', 'gnd:4318672-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862804043'] | ['Schüler', 'Lernpsychologie', 'Sozial-kognitive Lerntheorie', 'Selbstwirksamkeit'] | Document
### Title: ['Fähigkeitsselbstkonzept, Selbstwirksamkeit & Mindset – Wie können Lehrkräfte Erkenntnisse aus der Sozial-Kognitiven-Psychologie nutzen, um die Potenzialentfaltung von Schülerinnen und Schülern zu fördern? : Stephan Breidenbach']
### Abstract:
[['Starting from the research question, how social-cognitive-psychology may help teachers to enable their students to unfold their full academic potential this dissertation introduces the matrix of unfolding potential as a tool for teachers to diagnose and support their students. The theoretical part gives an overview of the existing research concerning academic self-concept, self-efficacy and mindset theory as well as their impact on students’ motivation and achievement. Based on 20 forty to eighty minute, half-structured expert interviews, the following empirical part of the dissertation then describes the status quo in schools and different practical measures to implement the theories presented in the theoretical part. As a result, more than three quarter of the consulted teachers states that psychological knowledge is important for their daily work. Additionally, each expert is able to name at least two sources of his/her psychological knowledge. By far the most experts (17 out of 20 teachers) gained their psychological knowledge from their university studies, followed by their mandatory traineeship called “Referendariat” (12 out of 20 teachers) and their daily work (11 out of 20 teachers). In total, many experts evaluate their psychological preparation for their job as a teacher as insufficient. Therefore, a majority of 16 out of the 20 experts agrees with the thesis of this dissertation that students don’t unfold their full achievement potential because teachers don’t use (or don’t know how to use) psychological theories adequately in school. The conducted qualitative content analyses show that the process of building up psychological knowledge is unsystematic and individually different for teachers. Only learning psychology theories seem to be quickly available for three quarter of the interviewed teachers. In contrast, the teachers’ knowledge from domains such as developmental, communication and social psychology shows room for improvement in terms of scope and depth. Similarly, theories from social-cognitive-psychology such as academic self-concept, self-efficacy and mindset theory are unknown to the majority of experts. Nevertheless – after being introduced to the social-cognitive theories by the interviewer –the consulted teachers altogether are able to name 25 measures how teachers can support their students based on academic self-concept, self-efficacy and mindset theory. Chapter four finally combines all the theoretical and empirical findings collected in this dissertation to develop the matrix of unfolding potential. The dimensions of the matrix are mindset theory (Carol S. Dweck) horizontally and self-efficacy theory (Albert Bandura) vertically. The purpose of this tool is to allow teachers a structured and systematic application of support measures in order to help students to develop a growth mindset and high self-efficacy so that they can unfold their full academic achievement potential.…', 'Ausgehend von der Frage, wie Erkenntnisse aus der Sozial-Kognitiven-Psychologie Lehrkräfte dabei unterstützen können, dass Schüler ihr volles Leistungspotenzial abrufen, wird in dieser Forschungsarbeit die Potenzialentfaltungsmatrix als Diagnose- und Förderinstrument für die Schulpraxis entwickelt. Im Theorieteil werden dazu die Theorien zu Fähigkeitsselbstkonzept, Selbstwirksamkeit und Mindset sowie ihre Bedeutung für die Motivation und das Verhalten von Schülern dargestellt. Auf Grundlage von 20 vierzig- bis achtzigminütigen, halbstrukturierten Experteninterviews mit Lehrkräften von Realschulen und Gymnasien werden dann im empirischen Teil dieser Arbeit zunächst der Status Quo in Schule und anschließend verschiedene Maßnahmen zur praktischen Umsetzung der oben angesprochenen sozial-kognitiven Theorien beschrieben. Das Ergebnis ist, dass mehr als dreiviertel der befragten Lehrkräfte psychologische Erkenntnisse als wichtig für ihren Berufsalltag erachten. Zudem beschreibt jede interviewte Lehrkraft mindestens zwei Zugänge, über die sie ihr psychologisches Wissen aufgebaut hat. Das Universitätsstudium (17 von 20 Lehrkräften) ist der mit Abstand am meisten genutzte Zugang, gefolgt vom Referendariat (12 von 20 Lehrkräften) und dem schulischen Alltag (11 von 20 Lehrkräften). Insgesamt bewerten viele Lehrkräfte ihre psychologische Vorbereitung auf den Berufsalltag dennoch als unzureichend, so dass 16 von 20 Experten der in dieser Arbeit aufgeworfenen These zustimmen, dass Schülerpotenzial ungenutzt bleibt, weil Lehrkräfte psychologische Erkenntnisse im Schullalltag nicht ausreichend nutzen (können). Die qualitativen Inhaltsanalysen ergänzen, dass der Aufbau von psychologischem Handlungswissen bei Lehrkräften bisher unsystematisch und individuell erfolgt. Lediglich fundierte lernpsychologische Erkenntnisse sind bei drei Vierteln der Lehrkräfte vorhanden. Das Wissen in den Bereichen Entwicklungs-, Kommunikations- und Sozialpsychologie ist bei den Experten dagegen in seiner Breite und Tiefe noch stark ausbaufähig. Die Theorien der Sozial-Kognitiven-Psychologie zu Selbstwirksamkeit, Mindset und Fähigkeitsselbstkonzept sind der Mehrheit der befragten Lehrer nicht bekannt. Dennoch können sie – nach Darstellung der Theorien durch den Interviewer – insgesamt 25 Maßnahmen nennen, wie Lehrkräfte Schüler auf Grundlage dieser Theorien fördern können. Die in Kapitel 4 entwickelte Potenzialentfaltungsmatrix, mit den Dimensionen Mindset (Carol S. Dweck) und Selbstwirksamkeit (Albert Bandura), kombiniert schließlich die in dieser Arbeit zusammengetragenen theoretischen und empirischen Erkenntnisse. Ziel ist es, Lehrkräften eine strukturierte und systematische Anwendung von Fördermaßnahmen zu ermöglichen, um den Schülern ein dynamisches Mindset und eine hohe Selbstwirksamkeit zu vermitteln.…']]
### GND ID:
['gnd:4053369-4', 'gnd:4074166-7', 'gnd:4181974-3', 'gnd:4318672-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862804043']
### GND class:
['Schüler', 'Lernpsychologie', 'Sozial-kognitive Lerntheorie', 'Selbstwirksamkeit']
<|eot_id|> |
3A862805473.jsonld | ['Applying the effect-response framework in the tropics : links between plant functional traits, the abiotic environment, and ecosystem functioning at Mount Kilimanjaro, Tanzania'] | [['The present work investigates the responses of plants to abiotic environmental conditions and their effects on ecosystem properties. It builds on the notion of the effect-response framework. Mount Kilimanjaro in Tanzania served as a model system, where plant functional traits of the most abundant and widespread species were collected. The main part of this dissertation consists of three chapters to be published as research articles. The first of the main chapters investigates the niche breadths of plant species along environmental gradients and addresses the question whether plant functional traits can predict corresponding niche optima. The second study deals with the variance of trait values within and between plant communities in relation to environmental conditions. In the third main chapter, it is investigated whether plant functional traits, the abiotic environment, or both combined influence mean animal body mass in taxonomically defined groups or feeding guilds. <engl.>', 'Die vorliegende Arbeit untersucht die Wirkung abiotischer Umweltfaktoren auf Pflanzen und deren Einfluss auf Ökosystemeigenschaften. Die Grundlage dafür bildet das effect-response framework. Der Kilimandscharo in Tansania diente als Untersuchungsgebiet. Dort wurden die funktionellen Eigenschaften der dominanten und am weitesten verbreiteten Arten gesammelt. Der Hauptteil dieser Dissertation besteht aus drei Kapiteln, die als wissenschaftliche Abhandlungen veröffentlicht werden sollen. Das erste Kapitel untersucht die Nischenbreite von Pflanzen entlang von Umweltgradienten sowie die Möglichkeit, Nischenoptima mit funktionellen Eigenschaften vorherzusagen. Die zweite Studie widmet sich der Variabilität der funktionellen Eigenschaften innerhalb und zwischen Pflanzengemeinschaften und dem Zusammenhang mit den herrschenden Umweltbedingungen. Im dritten Kapitel wird untersucht, ob funktionelle Eigenschaften von Pflanzen, die abiotische Umwelt, oder eine Kombination dieser Faktoren einen Einfluss auf das mittlere Körpergewicht taxonomisch oder über die Ernährungsweise definierter Tiergruppen haben. <dt.>']] | ['gnd:1114418188', 'gnd:143249029', 'gnd:4043216-6', 'gnd:4045539-7', 'gnd:4060997-2', 'gnd:4124348-1', 'gnd:4292953-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862805473'] | ['Zotz, Gerhard', 'Kleyer, Michael', 'Ökosystem', 'Pflanzen', 'Tropen', 'Umweltfaktor', 'Abiotischer Faktor'] | Document
### Title: ['Applying the effect-response framework in the tropics : links between plant functional traits, the abiotic environment, and ecosystem functioning at Mount Kilimanjaro, Tanzania']
### Abstract:
[['The present work investigates the responses of plants to abiotic environmental conditions and their effects on ecosystem properties. It builds on the notion of the effect-response framework. Mount Kilimanjaro in Tanzania served as a model system, where plant functional traits of the most abundant and widespread species were collected. The main part of this dissertation consists of three chapters to be published as research articles. The first of the main chapters investigates the niche breadths of plant species along environmental gradients and addresses the question whether plant functional traits can predict corresponding niche optima. The second study deals with the variance of trait values within and between plant communities in relation to environmental conditions. In the third main chapter, it is investigated whether plant functional traits, the abiotic environment, or both combined influence mean animal body mass in taxonomically defined groups or feeding guilds. <engl.>', 'Die vorliegende Arbeit untersucht die Wirkung abiotischer Umweltfaktoren auf Pflanzen und deren Einfluss auf Ökosystemeigenschaften. Die Grundlage dafür bildet das effect-response framework. Der Kilimandscharo in Tansania diente als Untersuchungsgebiet. Dort wurden die funktionellen Eigenschaften der dominanten und am weitesten verbreiteten Arten gesammelt. Der Hauptteil dieser Dissertation besteht aus drei Kapiteln, die als wissenschaftliche Abhandlungen veröffentlicht werden sollen. Das erste Kapitel untersucht die Nischenbreite von Pflanzen entlang von Umweltgradienten sowie die Möglichkeit, Nischenoptima mit funktionellen Eigenschaften vorherzusagen. Die zweite Studie widmet sich der Variabilität der funktionellen Eigenschaften innerhalb und zwischen Pflanzengemeinschaften und dem Zusammenhang mit den herrschenden Umweltbedingungen. Im dritten Kapitel wird untersucht, ob funktionelle Eigenschaften von Pflanzen, die abiotische Umwelt, oder eine Kombination dieser Faktoren einen Einfluss auf das mittlere Körpergewicht taxonomisch oder über die Ernährungsweise definierter Tiergruppen haben. <dt.>']]
### GND ID:
['gnd:1114418188', 'gnd:143249029', 'gnd:4043216-6', 'gnd:4045539-7', 'gnd:4060997-2', 'gnd:4124348-1', 'gnd:4292953-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862805473']
### GND class:
['Zotz, Gerhard', 'Kleyer, Michael', 'Ökosystem', 'Pflanzen', 'Tropen', 'Umweltfaktor', 'Abiotischer Faktor']
<|eot_id|> |
3A862888271.jsonld | ['Entscheidungsfindung in der humanitären Logistik : ein multikriterielles Transshipmentmodell zur Allokation von Hilfsgütern in laufenden Hilfsaktionen'] | [['Humanitarian relief operations rarely proceed smoothly and disruptions as, e.g., the outbreak of an epidemic or aftershocks, are common. Such situations are known as overlapping disasters. Relief organizations have to deal with the disruptions while at the same time the ongoing relief operation has to proceed. As future developments are uncertain, the aim cannot be to determine a unique optimal solution. Rather, various scenarios are formulated, representing possible developments of the situation. A multi-objective transshipment model is formulated to find efficient allocations of relief items for different scenarios. The model mHumLog is solved by two solution methods both considering uncertainties about future developments. Different indicators are developed for evaluating the scenarios in order to find appropriate decision rules to support the aid worker in allocating relief items.', 'Nur selten verlaufen Operationen der humanitären Hilfe gradlinig. Oftmals werden Hilfsaktionen durch Unterbrechungen, wie zum Beispiel Nachbeben, Epidemien oder Brände gestört. Auf diese Unterbrechungen muss dann reagiert werden, während die laufende Hilfsaktion fortgesetzt wird. Diese Situationen werden Overlapping Disaster genannt. Da eine Optimierung der Hilfsgüterallokation in der akuten Situation zu zeitaufwendig wäre, werden in dieser Arbeit Szenarien generiert und vorab mit einem multikriteriellen gemischt-ganzzahligen Transshipmentmodell gelöst. Es werden zwei verschiedene Lösungsmethoden entwickelt, die Unsicherheiten in Bezug auf die Entwicklung der Situation berücksichtigen. Die Ergebnisse der Szenarien werden daraufhin analysiert und es werden verschiedene Indikatoren zur Evaluation der Handlungsalternativen definiert. Basierend auf den Ausprägungen der Indikatoren werden die verschiedenen Lösungen bewertet und es werden Handlungsempfehlungen formuliert, die den Entscheidungsträger vor Ort bei der Allokation der Hilfsgüter unterstützen.']] | ['gnd:1069601748', 'gnd:122291557', 'gnd:133553752', 'gnd:14336393X', 'gnd:4001302-9', 'gnd:4060680-6', 'gnd:4186769-5', 'gnd:4570017-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862888271'] | ['Technische Universität Hamburg-Harburg, Institut für Quantitative Unternehmensforschung und Wirtschaftsinformatik', 'Ringle, Christian M.', 'Kersten, Wolfgang', 'Fischer, Kathrin', 'Allokation', 'Transport', 'Umladeproblem', 'Hilfsgut'] | Document
### Title: ['Entscheidungsfindung in der humanitären Logistik : ein multikriterielles Transshipmentmodell zur Allokation von Hilfsgütern in laufenden Hilfsaktionen']
### Abstract:
[['Humanitarian relief operations rarely proceed smoothly and disruptions as, e.g., the outbreak of an epidemic or aftershocks, are common. Such situations are known as overlapping disasters. Relief organizations have to deal with the disruptions while at the same time the ongoing relief operation has to proceed. As future developments are uncertain, the aim cannot be to determine a unique optimal solution. Rather, various scenarios are formulated, representing possible developments of the situation. A multi-objective transshipment model is formulated to find efficient allocations of relief items for different scenarios. The model mHumLog is solved by two solution methods both considering uncertainties about future developments. Different indicators are developed for evaluating the scenarios in order to find appropriate decision rules to support the aid worker in allocating relief items.', 'Nur selten verlaufen Operationen der humanitären Hilfe gradlinig. Oftmals werden Hilfsaktionen durch Unterbrechungen, wie zum Beispiel Nachbeben, Epidemien oder Brände gestört. Auf diese Unterbrechungen muss dann reagiert werden, während die laufende Hilfsaktion fortgesetzt wird. Diese Situationen werden Overlapping Disaster genannt. Da eine Optimierung der Hilfsgüterallokation in der akuten Situation zu zeitaufwendig wäre, werden in dieser Arbeit Szenarien generiert und vorab mit einem multikriteriellen gemischt-ganzzahligen Transshipmentmodell gelöst. Es werden zwei verschiedene Lösungsmethoden entwickelt, die Unsicherheiten in Bezug auf die Entwicklung der Situation berücksichtigen. Die Ergebnisse der Szenarien werden daraufhin analysiert und es werden verschiedene Indikatoren zur Evaluation der Handlungsalternativen definiert. Basierend auf den Ausprägungen der Indikatoren werden die verschiedenen Lösungen bewertet und es werden Handlungsempfehlungen formuliert, die den Entscheidungsträger vor Ort bei der Allokation der Hilfsgüter unterstützen.']]
### GND ID:
['gnd:1069601748', 'gnd:122291557', 'gnd:133553752', 'gnd:14336393X', 'gnd:4001302-9', 'gnd:4060680-6', 'gnd:4186769-5', 'gnd:4570017-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862888271']
### GND class:
['Technische Universität Hamburg-Harburg, Institut für Quantitative Unternehmensforschung und Wirtschaftsinformatik', 'Ringle, Christian M.', 'Kersten, Wolfgang', 'Fischer, Kathrin', 'Allokation', 'Transport', 'Umladeproblem', 'Hilfsgut']
<|eot_id|> |
3A862894360.jsonld | ['Linked markets : innovation, the dynamics of industries and general purpose technologies'] | ['This Doctoral Dissertation posits that markets, industries, and technologies displaying linked payoffs and connections upstream and downstream are subject to peculiar dynamics for what concerns economic and innovative activities compared to markets, industries and technologies considered in isolation. The main focus of the Dissertation is on a particular case of linked markets, the one affected by the presence of General Purpose Technologies (GPT). GPTs are technologies characterized by pervasiveness, continuous improvement, and inducement of innovational complementarities in linked industries. Those producing GPTs can be considered as upstream markets connected with a wide set of downstream applications; the linkage between GPTs and application sectors affects the incentives for technological innovation and diffusion as well as economic performance. Chapters Two, Three and Four of the Dissertation study the dynamics of industries and innovation in presence of GPTs. Chapters Five and Six of the Dissertation extend the analysis of linked markets beyond GPTs to topics such as market selection and policy intervention. For example, the violations of the replicator dynamics – that is, regressive developments of market selection – determined by the existence of value chain relations are identified and used to construct a more general theory of competition for the market. On the same vein, the constellation of public policy measures that limits or contrasts crowding-out in the context of commercialization of academic knowledge is highlighted and subject to experimental test. By studying the dynamics of linked markets and technologies when GPTs are involved, in value chains, and when policy can ease the commercialization of knowledge from the academic to the market domain, the dissertation opens room to develop a more complex and networked view of economic dynamics.'] | ['gnd:1104280914', 'gnd:36164-1', 'gnd:4026779-9', 'gnd:4027089-0', 'gnd:4346401-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862894360'] | ['Vannuccini, Simone', 'Friedrich-Schiller-Universität Jena', 'Industrie', 'Innovation', 'Wertschöpfungskette'] | Document
### Title: ['Linked markets : innovation, the dynamics of industries and general purpose technologies']
### Abstract:
['This Doctoral Dissertation posits that markets, industries, and technologies displaying linked payoffs and connections upstream and downstream are subject to peculiar dynamics for what concerns economic and innovative activities compared to markets, industries and technologies considered in isolation. The main focus of the Dissertation is on a particular case of linked markets, the one affected by the presence of General Purpose Technologies (GPT). GPTs are technologies characterized by pervasiveness, continuous improvement, and inducement of innovational complementarities in linked industries. Those producing GPTs can be considered as upstream markets connected with a wide set of downstream applications; the linkage between GPTs and application sectors affects the incentives for technological innovation and diffusion as well as economic performance. Chapters Two, Three and Four of the Dissertation study the dynamics of industries and innovation in presence of GPTs. Chapters Five and Six of the Dissertation extend the analysis of linked markets beyond GPTs to topics such as market selection and policy intervention. For example, the violations of the replicator dynamics – that is, regressive developments of market selection – determined by the existence of value chain relations are identified and used to construct a more general theory of competition for the market. On the same vein, the constellation of public policy measures that limits or contrasts crowding-out in the context of commercialization of academic knowledge is highlighted and subject to experimental test. By studying the dynamics of linked markets and technologies when GPTs are involved, in value chains, and when policy can ease the commercialization of knowledge from the academic to the market domain, the dissertation opens room to develop a more complex and networked view of economic dynamics.']
### GND ID:
['gnd:1104280914', 'gnd:36164-1', 'gnd:4026779-9', 'gnd:4027089-0', 'gnd:4346401-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862894360']
### GND class:
['Vannuccini, Simone', 'Friedrich-Schiller-Universität Jena', 'Industrie', 'Innovation', 'Wertschöpfungskette']
<|eot_id|> |
3A86289591X.jsonld | ['Structural change, wage inequality and technology foresight policy'] | ['The thesis is organized in a set of studies divided in three chapters. Chapter 2 and 3 focus on the Argentine and Brazilian industrial development empirically and they are based on the Analysis Program of Industrial Dynamics database (PADI) (Katz and Stumpo, 2001). PADI covers 28 manufacturing sectors from 1970 to 2007 and they can be grouped into three main macro-sectors according to the most used factors of production, namely: natural resources (NR) intensive industries, labour intensive (LI) intensive industries, and R&D intensive industries. Chapter 2 investigates the direction, dynamics and productivity dispersion of structural change to provide an insight into its evolution and dynamics. Chapter 3, builds on the findings from Chapter 2 by assessing whether, and if so, to what extent, structural change – identified with productivity, gross margin, trade openness and import penetration - affects cross-sectoral wage inequality. The study underscores that the type of economic specialization of a given sector is a key element in explaining the link between structural change and wage inequality. Chapter 4, by embracing a policy perspective, asks how TF exercises can help developing countries to pursue structural change in practice. Overall our results show that structural change is driven by R&D industries in Brazil and NR intensive industries in Argentina. Furthermore, R&D intensive industries - contrary to NR intensive industries - amplify the positive relationship between structural change and higher wage premiums. Sectoral wages in this macro-sector are equally distributed, especially in Brazil. Hence, efforts to shift resources from traditional NR industries towards more technological intensive ones also thanks to the adoption of technology foresight policies are of foremost importance since they enable structural change and a more equitable growth at the same time.'] | ['gnd:1104274655', 'gnd:36164-1', 'gnd:4026779-9', 'gnd:4027089-0', 'gnd:4058136-6', 'gnd:4074032-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86289591X'] | ['Puppato, Fernanda', 'Friedrich-Schiller-Universität Jena', 'Industrie', 'Innovation', 'Strukturwandel', 'Lateinamerika'] | Document
### Title: ['Structural change, wage inequality and technology foresight policy']
### Abstract:
['The thesis is organized in a set of studies divided in three chapters. Chapter 2 and 3 focus on the Argentine and Brazilian industrial development empirically and they are based on the Analysis Program of Industrial Dynamics database (PADI) (Katz and Stumpo, 2001). PADI covers 28 manufacturing sectors from 1970 to 2007 and they can be grouped into three main macro-sectors according to the most used factors of production, namely: natural resources (NR) intensive industries, labour intensive (LI) intensive industries, and R&D intensive industries. Chapter 2 investigates the direction, dynamics and productivity dispersion of structural change to provide an insight into its evolution and dynamics. Chapter 3, builds on the findings from Chapter 2 by assessing whether, and if so, to what extent, structural change – identified with productivity, gross margin, trade openness and import penetration - affects cross-sectoral wage inequality. The study underscores that the type of economic specialization of a given sector is a key element in explaining the link between structural change and wage inequality. Chapter 4, by embracing a policy perspective, asks how TF exercises can help developing countries to pursue structural change in practice. Overall our results show that structural change is driven by R&D industries in Brazil and NR intensive industries in Argentina. Furthermore, R&D intensive industries - contrary to NR intensive industries - amplify the positive relationship between structural change and higher wage premiums. Sectoral wages in this macro-sector are equally distributed, especially in Brazil. Hence, efforts to shift resources from traditional NR industries towards more technological intensive ones also thanks to the adoption of technology foresight policies are of foremost importance since they enable structural change and a more equitable growth at the same time.']
### GND ID:
['gnd:1104274655', 'gnd:36164-1', 'gnd:4026779-9', 'gnd:4027089-0', 'gnd:4058136-6', 'gnd:4074032-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86289591X']
### GND class:
['Puppato, Fernanda', 'Friedrich-Schiller-Universität Jena', 'Industrie', 'Innovation', 'Strukturwandel', 'Lateinamerika']
<|eot_id|> |
3A86294631X.jsonld | ['In vitro-Untersuchungen von Schlüsselschritten der Borrelidin- und Ambruticin-Biosynthesen'] | ['Borrelidin, Ambruticin, Dehydratasedomäne, Epoxidase, Biosynthese. - Dehydratase domain, biosynthesis'] | ['gnd:4152563-2', 'gnd:4470171-8', 'gnd:4475602-1', 'gnd:64681-7', 'gnd:7664301-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86294631X'] | ['Epoxidhydrolase', 'Dehydratasen', 'Ambruticine', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Borrelidin'] | Document
### Title: ['In vitro-Untersuchungen von Schlüsselschritten der Borrelidin- und Ambruticin-Biosynthesen']
### Abstract:
['Borrelidin, Ambruticin, Dehydratasedomäne, Epoxidase, Biosynthese. - Dehydratase domain, biosynthesis']
### GND ID:
['gnd:4152563-2', 'gnd:4470171-8', 'gnd:4475602-1', 'gnd:64681-7', 'gnd:7664301-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86294631X']
### GND class:
['Epoxidhydrolase', 'Dehydratasen', 'Ambruticine', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Borrelidin']
<|eot_id|> |
3A862960150.jsonld | ['Dynamics of mantle plumes : linking scales and coupling physics'] | ['Mantle plumes are a link between different scales in the Earth’s mantle: They are an important part of large-scale mantle convection, transporting material and heat from the core-mantle boundary to the surface, but also affect processes on a smaller scale, such as melt generation and transport and surface magmatism. When they reach the base of the lithosphere, they cause massive magmatism associated with the generation of large igneous provinces, and they can be related to mass extinction events (Wignall, 2001) and continental breakup (White and McKenzie, 1989). Thus, mantle plumes have been the subject of many previous numerical modelling studies (e.g. Farnetani and Richards, 1995; d’Acremont et al., 2003; Lin and van Keken, 2005; Sobolev et al., 2011; Ballmer et al., 2013). However, complex mechanisms, such as the development and implications of chemical heterogeneities in plumes, their interaction with mid-ocean ridges and global mantle flow, and melt ascent from the source region to the surface are still not very well understood;…'] | ['gnd:1049859308', 'gnd:1106269772', 'gnd:4345278-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862960150'] | ['Weber, Michael', 'Dannberg, Juliane', 'Manteldiapir'] | Document
### Title: ['Dynamics of mantle plumes : linking scales and coupling physics']
### Abstract:
['Mantle plumes are a link between different scales in the Earth’s mantle: They are an important part of large-scale mantle convection, transporting material and heat from the core-mantle boundary to the surface, but also affect processes on a smaller scale, such as melt generation and transport and surface magmatism. When they reach the base of the lithosphere, they cause massive magmatism associated with the generation of large igneous provinces, and they can be related to mass extinction events (Wignall, 2001) and continental breakup (White and McKenzie, 1989). Thus, mantle plumes have been the subject of many previous numerical modelling studies (e.g. Farnetani and Richards, 1995; d’Acremont et al., 2003; Lin and van Keken, 2005; Sobolev et al., 2011; Ballmer et al., 2013). However, complex mechanisms, such as the development and implications of chemical heterogeneities in plumes, their interaction with mid-ocean ridges and global mantle flow, and melt ascent from the source region to the surface are still not very well understood;…']
### GND ID:
['gnd:1049859308', 'gnd:1106269772', 'gnd:4345278-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A862960150']
### GND class:
['Weber, Michael', 'Dannberg, Juliane', 'Manteldiapir']
<|eot_id|> |
3A863445969.jsonld | ['Effect of mass wasting on soil organic carbon storage and coastal erosion in permafrost environments'] | ['Accelerated permafrost thaw under the warming Arctic climate can have a significant impact on Arctic landscapes. Areas underlain by permafrost store high amounts of soil organic carbon (SOC). Permafrost disturbances may contribute to increased release of carbon dioxide and methane to the atmosphere. Coastal erosion, amplified through a decrease in Arctic sea-ice extent, may also mobilise SOC from permafrost. Large expanses of permafrost affected land are characterised by intense mass-wasting processes such as solifluction, active-layer detachments and retrogressive thaw slumping. Our aim is to assess the influence of mass wasting on SOC storage and coastal erosion. We studied SOC storage on Herschel Island by analysing active-layer and permafrost samples, and compared non-disturbed sites to those characterised by mass wasting. Mass-wasting sites showed decreased SOC storage and material compaction, whereas sites characterised by material accumulation showed increased storage. The SOC storage on Herschel Island is also significantly …'] | ['gnd:108121838X', 'gnd:1107208971', 'gnd:4002924-4', 'gnd:4015366-6', 'gnd:4033469-7', 'gnd:4129794-5', 'gnd:4164538-8', 'gnd:4169027-8', 'gnd:4191504-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863445969'] | ['Lantuit, Hugues', 'Obu, Jaroslav', 'Arktis', 'Erosion', 'Küste', 'Dauerfrostboden', 'Kohlenstoff', 'Massenbewegung (Geomorphologie)', 'Speicherung'] | Document
### Title: ['Effect of mass wasting on soil organic carbon storage and coastal erosion in permafrost environments']
### Abstract:
['Accelerated permafrost thaw under the warming Arctic climate can have a significant impact on Arctic landscapes. Areas underlain by permafrost store high amounts of soil organic carbon (SOC). Permafrost disturbances may contribute to increased release of carbon dioxide and methane to the atmosphere. Coastal erosion, amplified through a decrease in Arctic sea-ice extent, may also mobilise SOC from permafrost. Large expanses of permafrost affected land are characterised by intense mass-wasting processes such as solifluction, active-layer detachments and retrogressive thaw slumping. Our aim is to assess the influence of mass wasting on SOC storage and coastal erosion. We studied SOC storage on Herschel Island by analysing active-layer and permafrost samples, and compared non-disturbed sites to those characterised by mass wasting. Mass-wasting sites showed decreased SOC storage and material compaction, whereas sites characterised by material accumulation showed increased storage. The SOC storage on Herschel Island is also significantly …']
### GND ID:
['gnd:108121838X', 'gnd:1107208971', 'gnd:4002924-4', 'gnd:4015366-6', 'gnd:4033469-7', 'gnd:4129794-5', 'gnd:4164538-8', 'gnd:4169027-8', 'gnd:4191504-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863445969']
### GND class:
['Lantuit, Hugues', 'Obu, Jaroslav', 'Arktis', 'Erosion', 'Küste', 'Dauerfrostboden', 'Kohlenstoff', 'Massenbewegung (Geomorphologie)', 'Speicherung']
<|eot_id|> |
3A863521878.jsonld | ['Essays on long memory time series'] | ['Long memory, semiparametric estimation, time series analysis. - Langes Gedächtnis, semiparametrische Schätzung, Zeitreihenanalyse'] | ['gnd:1126258431', 'gnd:132817802', 'gnd:4040708-1', 'gnd:4067486-1', 'gnd:4077852-6', 'gnd:4124102-2', 'gnd:4268390-7', 'gnd:4358095-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863521878'] | ['Sibbertsen, Philipp', 'Hassler, Uwe', 'Multivariate Analyse', 'Zeitreihenanalyse', 'Statistischer Test', 'Saisonale Komponente', 'Volatilität', 'Prognoseverfahren', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Essays on long memory time series']
### Abstract:
['Long memory, semiparametric estimation, time series analysis. - Langes Gedächtnis, semiparametrische Schätzung, Zeitreihenanalyse']
### GND ID:
['gnd:1126258431', 'gnd:132817802', 'gnd:4040708-1', 'gnd:4067486-1', 'gnd:4077852-6', 'gnd:4124102-2', 'gnd:4268390-7', 'gnd:4358095-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863521878']
### GND class:
['Sibbertsen, Philipp', 'Hassler, Uwe', 'Multivariate Analyse', 'Zeitreihenanalyse', 'Statistischer Test', 'Saisonale Komponente', 'Volatilität', 'Prognoseverfahren', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A863830021.jsonld | ['Engineered microwave control for trapped ions'] | ['Quantum information processing, trapped and laser-cooled ions, hyperfine qubits, microstructures, microwave near-fields. - Quanteninformation, gefangene und lasergekühlte Ionen, Mikrostrukturen, Mikrowellen-Nahfelder'] | ['gnd:1112660321', 'gnd:132728311', 'gnd:4039246-6', 'gnd:4144831-5', 'gnd:4144846-7', 'gnd:4161052-0', 'gnd:4176599-0', 'gnd:4246725-1', 'gnd:4312216-4', 'gnd:4842734-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863830021'] | ['Wahnschaffe, Martina', 'Ospelkaus, Christian', 'Mikrowelle', 'Berylliumion', 'Beryllium-9', 'Hyperfeinstruktur', 'Quantenlogik', 'Ionenfalle', 'Nahfeld', 'Qubit', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Engineered microwave control for trapped ions']
### Abstract:
['Quantum information processing, trapped and laser-cooled ions, hyperfine qubits, microstructures, microwave near-fields. - Quanteninformation, gefangene und lasergekühlte Ionen, Mikrostrukturen, Mikrowellen-Nahfelder']
### GND ID:
['gnd:1112660321', 'gnd:132728311', 'gnd:4039246-6', 'gnd:4144831-5', 'gnd:4144846-7', 'gnd:4161052-0', 'gnd:4176599-0', 'gnd:4246725-1', 'gnd:4312216-4', 'gnd:4842734-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863830021']
### GND class:
['Wahnschaffe, Martina', 'Ospelkaus, Christian', 'Mikrowelle', 'Berylliumion', 'Beryllium-9', 'Hyperfeinstruktur', 'Quantenlogik', 'Ionenfalle', 'Nahfeld', 'Qubit', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A863965385.jsonld | ['Engineering of enzymatic redox cascades involving oxygenases'] | [['Cascade reactions are not only of interest to chemists and biotechnologists, but also to life in general, because every metabolic reaction resembles a cascade reaction. This principle of substrate/intermediate channeling was only adapted by scientists. That way especially one-pot reactions became very attractive as for this no isolation of intermediates is necessary. Furthermore, unstable or toxic intermediates are only produced in low amounts and directly transformed in situ. In this PhD thesis two previously established cascade reactions were subject of further optimization. In the first part, a cascade reaction established in a DFG-funded project (Bo1862/6-1)in cooperation with the Vienna Technical University (Austria) for the production of chiral lactones was further optimized and extended. Therefore, on the one hand the genes encoding the needed enzymes were cloned for co-expression into a single plasmid in different arrangements to be expressed in pseudo-operon mode, with the aim to lower the metabolic burden of the cascade host cell. One out of the welve created constructs showed a reasonable activity of 15.3 ± 1.2 U · gCDW-1. On the other hand, this cascade reaction was aimed to be extended by the use of a hydroxylating enzyme to enable the use of limonene as renewable and chiral precursor for the proposed production of chiral polymers. Therefore, the feasibility of cytochrome P450-monooxygenases was studied. These turned out to be not applicable due to their bad ...', 'Biokatalyse, Synthetische Biologie, Immobilisierung, Prozesstechnik, Enzyme, Reaktionskaskade, Enzymidentifizierung, Molecular Modelling, Biocatalysis, Synthetic Biology, Immobilization, Process engineering, Enzyme identification']] | ['gnd:36158-6', 'gnd:4014988-2', 'gnd:4062781-0', 'gnd:4072712-9', 'gnd:4123417-0', 'gnd:4265444-0', 'gnd:4306783-9', 'gnd:4393622-2', 'gnd:7684405-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863965385'] | ['Ernst-Moritz-Arndt-Universität Greifswald', 'Enzym', 'Verfahrenstechnik', 'Identifikation', 'Immobilisierung', 'Molekulardesign', 'Tandem-Reaktion', 'Biokatalyse', 'Synthetische Biologie'] | Document
### Title: ['Engineering of enzymatic redox cascades involving oxygenases']
### Abstract:
[['Cascade reactions are not only of interest to chemists and biotechnologists, but also to life in general, because every metabolic reaction resembles a cascade reaction. This principle of substrate/intermediate channeling was only adapted by scientists. That way especially one-pot reactions became very attractive as for this no isolation of intermediates is necessary. Furthermore, unstable or toxic intermediates are only produced in low amounts and directly transformed in situ. In this PhD thesis two previously established cascade reactions were subject of further optimization. In the first part, a cascade reaction established in a DFG-funded project (Bo1862/6-1)in cooperation with the Vienna Technical University (Austria) for the production of chiral lactones was further optimized and extended. Therefore, on the one hand the genes encoding the needed enzymes were cloned for co-expression into a single plasmid in different arrangements to be expressed in pseudo-operon mode, with the aim to lower the metabolic burden of the cascade host cell. One out of the welve created constructs showed a reasonable activity of 15.3 ± 1.2 U · gCDW-1. On the other hand, this cascade reaction was aimed to be extended by the use of a hydroxylating enzyme to enable the use of limonene as renewable and chiral precursor for the proposed production of chiral polymers. Therefore, the feasibility of cytochrome P450-monooxygenases was studied. These turned out to be not applicable due to their bad ...', 'Biokatalyse, Synthetische Biologie, Immobilisierung, Prozesstechnik, Enzyme, Reaktionskaskade, Enzymidentifizierung, Molecular Modelling, Biocatalysis, Synthetic Biology, Immobilization, Process engineering, Enzyme identification']]
### GND ID:
['gnd:36158-6', 'gnd:4014988-2', 'gnd:4062781-0', 'gnd:4072712-9', 'gnd:4123417-0', 'gnd:4265444-0', 'gnd:4306783-9', 'gnd:4393622-2', 'gnd:7684405-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A863965385']
### GND class:
['Ernst-Moritz-Arndt-Universität Greifswald', 'Enzym', 'Verfahrenstechnik', 'Identifikation', 'Immobilisierung', 'Molekulardesign', 'Tandem-Reaktion', 'Biokatalyse', 'Synthetische Biologie']
<|eot_id|> |
3A864010478.jsonld | ['Investigating word order processing using pupillometry and event-related potentials'] | ['In this thesis sentence processing was investigated using a psychophysiological measure known as pupillometry as well as Event-Related Potentials (ERP). The scope of the the- sis was broad, investigating the processing of several different movement constructions with native speakers of English and second language learners of English, as well as word order and case marking in German speaking adults and children. Pupillometry and ERP allowed us to test competing linguistic theories and use novel methodologies to investigate the processing of word order. In doing so we also aimed to establish pupillometry as an effective way to investigate the processing of word order thus broadening the methodological spectrum.'] | ['gnd:1107222265', 'gnd:114443181', 'gnd:4135250-6', 'gnd:4300621-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864010478'] | ['Breakell Fernandez, Leigh', 'Höhle, Barbara', 'Wortstellung', 'Sprachverarbeitung (Psycholinguistik)'] | Document
### Title: ['Investigating word order processing using pupillometry and event-related potentials']
### Abstract:
['In this thesis sentence processing was investigated using a psychophysiological measure known as pupillometry as well as Event-Related Potentials (ERP). The scope of the the- sis was broad, investigating the processing of several different movement constructions with native speakers of English and second language learners of English, as well as word order and case marking in German speaking adults and children. Pupillometry and ERP allowed us to test competing linguistic theories and use novel methodologies to investigate the processing of word order. In doing so we also aimed to establish pupillometry as an effective way to investigate the processing of word order thus broadening the methodological spectrum.']
### GND ID:
['gnd:1107222265', 'gnd:114443181', 'gnd:4135250-6', 'gnd:4300621-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864010478']
### GND class:
['Breakell Fernandez, Leigh', 'Höhle, Barbara', 'Wortstellung', 'Sprachverarbeitung (Psycholinguistik)']
<|eot_id|> |
3A864284888.jsonld | ['Design principles of plant photosensory networks : quantitative analysis and modelling of phytochrome dimer dynamics in Arabidopsis thaliana'] | ['Zusammenfassung: For plants as sessile organisms the acclimatisation to environmental fluctuations is the most essential, critical and at the same time challenging process to evolve plasticity (Smith, 1982, 2000). Such acclimatisation processes require refined sensitive mechanisms, including a variety of different light sensing photoreceptors (Smith, 1982; Montgomery and Lagarias, 2002). Phytochromes are the most important photoreceptors in plants regulating several essential developmental changes like seed germination and de-etiolation as well as stem elongation (Figure 1.1). However, the two major phytochromes phyA and phyB exhibit dramatic differences in their action spectra for physiological responses, with phyB being most active in red light and phyA in far red light (Casal et al., 1998). These differences cannot be explained by the photo-physical properties of the phytochromes, because these are virtually identical for all phytochromes (Eichenberg et al., 2000)'] | ['gnd:1104397161', 'gnd:4141299-0', 'gnd:4149938-4', 'gnd:4174633-8', 'gnd:4375281-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864284888'] | ['Venezia, Filippo', 'Ackerschmalwand', 'Dimer-Konfiguration', 'Phytochrom', 'Photorezeption'] | Document
### Title: ['Design principles of plant photosensory networks : quantitative analysis and modelling of phytochrome dimer dynamics in Arabidopsis thaliana']
### Abstract:
['Zusammenfassung: For plants as sessile organisms the acclimatisation to environmental fluctuations is the most essential, critical and at the same time challenging process to evolve plasticity (Smith, 1982, 2000). Such acclimatisation processes require refined sensitive mechanisms, including a variety of different light sensing photoreceptors (Smith, 1982; Montgomery and Lagarias, 2002). Phytochromes are the most important photoreceptors in plants regulating several essential developmental changes like seed germination and de-etiolation as well as stem elongation (Figure 1.1). However, the two major phytochromes phyA and phyB exhibit dramatic differences in their action spectra for physiological responses, with phyB being most active in red light and phyA in far red light (Casal et al., 1998). These differences cannot be explained by the photo-physical properties of the phytochromes, because these are virtually identical for all phytochromes (Eichenberg et al., 2000)']
### GND ID:
['gnd:1104397161', 'gnd:4141299-0', 'gnd:4149938-4', 'gnd:4174633-8', 'gnd:4375281-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864284888']
### GND class:
['Venezia, Filippo', 'Ackerschmalwand', 'Dimer-Konfiguration', 'Phytochrom', 'Photorezeption']
<|eot_id|> |
3A864285159.jsonld | ['Large area crystal surfaces of precisely side-branched polyethylenes : preparation, surface order and functionalization'] | ['Zusammenfassung: Upon crystallization of polymers containing precisely spaced side-branches, the side-branches are excluded from the crystalline core of the lamellar crystal. Thus, the surfaces of these crystals are covered by side-branches. By using carboxyl groups as side-branches, which can be ionized in aqueous environments, self-stabilized nanocrystal dispersions can be prepared. In principle, the carboxyl groups also allow for the covalent attachment of functional molecules to the lamellar crystals using well established strategies for amide bond formation. However, the fold surfaces of the crystals need to be highly ordered so that the carboxyl groups are accessible for functionalization.From x-ray scattering in semicrystalline bulk, we found that precisely spaced side-groups do not predefine the thickness of the crystalline core under all crystallization conditions. In addition, the part of the fold layer containing carboxyl groups had a considerable thickness, indicating that there is a substantial disorder in the fold surfaces of lamellar crystals of polymers containing precisely spaced side-branches'] | ['gnd:1104512726', 'gnd:4033215-9', 'gnd:4076241-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864285159'] | ['Machatschek, Rainhard Gabriel', 'Kristallisation', 'Polyethylene'] | Document
### Title: ['Large area crystal surfaces of precisely side-branched polyethylenes : preparation, surface order and functionalization']
### Abstract:
['Zusammenfassung: Upon crystallization of polymers containing precisely spaced side-branches, the side-branches are excluded from the crystalline core of the lamellar crystal. Thus, the surfaces of these crystals are covered by side-branches. By using carboxyl groups as side-branches, which can be ionized in aqueous environments, self-stabilized nanocrystal dispersions can be prepared. In principle, the carboxyl groups also allow for the covalent attachment of functional molecules to the lamellar crystals using well established strategies for amide bond formation. However, the fold surfaces of the crystals need to be highly ordered so that the carboxyl groups are accessible for functionalization.From x-ray scattering in semicrystalline bulk, we found that precisely spaced side-groups do not predefine the thickness of the crystalline core under all crystallization conditions. In addition, the part of the fold layer containing carboxyl groups had a considerable thickness, indicating that there is a substantial disorder in the fold surfaces of lamellar crystals of polymers containing precisely spaced side-branches']
### GND ID:
['gnd:1104512726', 'gnd:4033215-9', 'gnd:4076241-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864285159']
### GND class:
['Machatschek, Rainhard Gabriel', 'Kristallisation', 'Polyethylene']
<|eot_id|> |
3A864285698.jsonld | ['Method development for non-routine compound specific stable isotope analysis (CSIA) of light elements'] | ['Abstract ; Multi-dimensional compound specific stable isotope analysis (CSIA) is a promising new analytical approach wherein changes in isotope ratios are measured across multiple elements within a given compound, shedding light on reaction mechanisms and allowing for the identification and characterisation of the origin, distribution, conversion, and degradation of organic chemicals. Thus far, routine methods are available for measurements of carbon and hydrogen isotopes; however, in order to fully exploit the potential of multi-dimensional CSIA, new approaches are needed for halogen, oxygen, and hydrogen stable isotope analysis in heteroatom-bearing compounds. In order to facilitate such an expansion, the work described in this thesis was aimed at the development of methods for CSIA for rarely-analysed chlorine and oxygen stable isotopes, as well as to improve hydrogen stable isotope analysis for halogenated compounds, which were previously inaccessible. The presented approaches used high temperature conversion (HTC, >1200 °C) to generate HCl, CO, and H2 analyte gas from organic compounds online after gas chromatographic (GC) separation. For respective stable isotope ratio determination of those analyte gases, the GC-HTC interface was interlinked with a gas analyser (qMS) and later an isotope ratio mass spectrometer (IRMS). For conversion characterisation an organic mass spectrometer (IonTrap MS) was used in parallel at the end of the tested reactors. Chlorine stable isotope analysis using GC-HTC-IRMS was achieved for a set of chlorinated compounds. Hydrogen stable isotope analysis of heteroatom-bearing (Cl, N, S) substances was improved fundamentally by providing chromium powder in the reactor. The developed novel GC-Cr/HTC-IRMS method was successfully validated and implemented for hydrogen CSIA. Investigations of the commercially available reactor for oxygen GC-HTC-IRMS showed undesired by-products and HTC processes which inhibited reproducible and accurate CSIA of volatile organic compounds. For future method development and to identify and quantify interfering by-products in GC-HTC-IRMS in general, an evaluation strategy is proposed. In summary, GC-HTC-IRMS approaches were investigated and successfully applied to extend the existing repertoire of non-routine CSIA methods for chlorine, hydrogen and oxygen stable isotopes. ; Abstract ; Die Aussagekraft der mehrdimensionalen komponentenspezifischen stabilen Isotopenanalyse (CSIA) hinsichtlich der Identifikation und Charakterisierung von Ursprung, Verteilung, Umwandlung und Abbau von organischen Chemikalien ist um ein Vielfaches stärker als die der herkömmlichen CSIA nur eines Elementes. Um dieses Potential auszuschöpfen, sind neben den routinemäßig zugänglichen Isotopen (13C, 2H) neue Methoden für Halogen-, aber auch Sauerstoff- und Wasserstoff-Isotope in Heteroverbindungen notwendig. Ziel dieser Arbeit war die Methodenentwicklung für die CSIA von bisher nur vereinzelt untersuchten Elementen Chlor und Sauerstoff (37Cl, 18O), sowie für Wasserstoff (2H) an halogenierten Verbindungen, die mit existierenden Methoden nicht oder nur eingeschränkt messbar waren. Im Rahmen der vorgelegten Arbeit wurde die Hochtemperaturumsetzung (HTC, >1200 °C) zur Erzeugung von HCl-, CO- und H2-Analyse-Gasen aus organischen Verbindungen direkt im Anschluss (online) an die gaschromatographische Trennung (GC-HTC) genutzt. Zur Bestimmung der Isotopenverhältnisse an diesen Analyse-Gasen wurde das GC-HTC-Interface zuerst mit einem Restgasanalysator (qMS) und anschließend mit einem Isotopenverhältnis-Massenspektrometer (IRMS) gekoppelt. Für die Charakterisierung der Umsetzung wurde am Ausgang des jeweiligen Reaktors ein paralleles organisches Massenspektrometer (IonTrap MS) verwendet. Dieser GC-HTC-IRMS Ansatz konnte für die Chlorisotopenanalyse am HCl verwirklicht und für verschiedene chlorierte Verbindungen eingesetzt werden. Durch die zusätzliche Verwendung von Chrommetall im Reaktor konnte die Wasserstoffisotopenanalyse mittels GC-Cr/HTC-IRMS für die Messung verschiedener heteroatomhaltiger (Cl, N, S) Verbindungen erfolgreich validiert und etabliert werden. Ferner zeigten die Untersuchungen des kommerziell verfügbaren HTC Reaktors für die Sauerstoffisotopenanalyse, dass unerwünschte Nebenprodukte und versteckte zusätzliche Sauerstoffquellen eine reproduzierbare und akkurate GC-HTC-IRMS Bestimmung erschweren. Es wurde eine Evaluierungsstrategie basierend auf Methoden zur Identifizierung und Quantifizierung störender Nebenprodukte und Prozesse entwickelt, die in Zukunft auch für andere GC-HTC-IRMS Methodenentwicklungen anwendbar ist. In der vorgelegten Arbeit wurden GC-HTC-IRMS Methoden zur Bestimmung der Halogen-, Wasserstoff- und Sauerstoff-Isotopenverhältnisse untersucht und erfolgreich zur Erweiterung der CSIA heteroatom-haltiger organischer Verbindungen genutzt.'] | ['gnd:1105399826', 'gnd:36187-2', 'gnd:4027801-3', 'gnd:4037882-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864285698'] | ['Hitzfeld, Kristina', 'Eberhard Karls Universität Tübingen', 'Isotop', 'Massenspektrometrie'] | Document
### Title: ['Method development for non-routine compound specific stable isotope analysis (CSIA) of light elements']
### Abstract:
['Abstract ; Multi-dimensional compound specific stable isotope analysis (CSIA) is a promising new analytical approach wherein changes in isotope ratios are measured across multiple elements within a given compound, shedding light on reaction mechanisms and allowing for the identification and characterisation of the origin, distribution, conversion, and degradation of organic chemicals. Thus far, routine methods are available for measurements of carbon and hydrogen isotopes; however, in order to fully exploit the potential of multi-dimensional CSIA, new approaches are needed for halogen, oxygen, and hydrogen stable isotope analysis in heteroatom-bearing compounds. In order to facilitate such an expansion, the work described in this thesis was aimed at the development of methods for CSIA for rarely-analysed chlorine and oxygen stable isotopes, as well as to improve hydrogen stable isotope analysis for halogenated compounds, which were previously inaccessible. The presented approaches used high temperature conversion (HTC, >1200 °C) to generate HCl, CO, and H2 analyte gas from organic compounds online after gas chromatographic (GC) separation. For respective stable isotope ratio determination of those analyte gases, the GC-HTC interface was interlinked with a gas analyser (qMS) and later an isotope ratio mass spectrometer (IRMS). For conversion characterisation an organic mass spectrometer (IonTrap MS) was used in parallel at the end of the tested reactors. Chlorine stable isotope analysis using GC-HTC-IRMS was achieved for a set of chlorinated compounds. Hydrogen stable isotope analysis of heteroatom-bearing (Cl, N, S) substances was improved fundamentally by providing chromium powder in the reactor. The developed novel GC-Cr/HTC-IRMS method was successfully validated and implemented for hydrogen CSIA. Investigations of the commercially available reactor for oxygen GC-HTC-IRMS showed undesired by-products and HTC processes which inhibited reproducible and accurate CSIA of volatile organic compounds. For future method development and to identify and quantify interfering by-products in GC-HTC-IRMS in general, an evaluation strategy is proposed. In summary, GC-HTC-IRMS approaches were investigated and successfully applied to extend the existing repertoire of non-routine CSIA methods for chlorine, hydrogen and oxygen stable isotopes. ; Abstract ; Die Aussagekraft der mehrdimensionalen komponentenspezifischen stabilen Isotopenanalyse (CSIA) hinsichtlich der Identifikation und Charakterisierung von Ursprung, Verteilung, Umwandlung und Abbau von organischen Chemikalien ist um ein Vielfaches stärker als die der herkömmlichen CSIA nur eines Elementes. Um dieses Potential auszuschöpfen, sind neben den routinemäßig zugänglichen Isotopen (13C, 2H) neue Methoden für Halogen-, aber auch Sauerstoff- und Wasserstoff-Isotope in Heteroverbindungen notwendig. Ziel dieser Arbeit war die Methodenentwicklung für die CSIA von bisher nur vereinzelt untersuchten Elementen Chlor und Sauerstoff (37Cl, 18O), sowie für Wasserstoff (2H) an halogenierten Verbindungen, die mit existierenden Methoden nicht oder nur eingeschränkt messbar waren. Im Rahmen der vorgelegten Arbeit wurde die Hochtemperaturumsetzung (HTC, >1200 °C) zur Erzeugung von HCl-, CO- und H2-Analyse-Gasen aus organischen Verbindungen direkt im Anschluss (online) an die gaschromatographische Trennung (GC-HTC) genutzt. Zur Bestimmung der Isotopenverhältnisse an diesen Analyse-Gasen wurde das GC-HTC-Interface zuerst mit einem Restgasanalysator (qMS) und anschließend mit einem Isotopenverhältnis-Massenspektrometer (IRMS) gekoppelt. Für die Charakterisierung der Umsetzung wurde am Ausgang des jeweiligen Reaktors ein paralleles organisches Massenspektrometer (IonTrap MS) verwendet. Dieser GC-HTC-IRMS Ansatz konnte für die Chlorisotopenanalyse am HCl verwirklicht und für verschiedene chlorierte Verbindungen eingesetzt werden. Durch die zusätzliche Verwendung von Chrommetall im Reaktor konnte die Wasserstoffisotopenanalyse mittels GC-Cr/HTC-IRMS für die Messung verschiedener heteroatomhaltiger (Cl, N, S) Verbindungen erfolgreich validiert und etabliert werden. Ferner zeigten die Untersuchungen des kommerziell verfügbaren HTC Reaktors für die Sauerstoffisotopenanalyse, dass unerwünschte Nebenprodukte und versteckte zusätzliche Sauerstoffquellen eine reproduzierbare und akkurate GC-HTC-IRMS Bestimmung erschweren. Es wurde eine Evaluierungsstrategie basierend auf Methoden zur Identifizierung und Quantifizierung störender Nebenprodukte und Prozesse entwickelt, die in Zukunft auch für andere GC-HTC-IRMS Methodenentwicklungen anwendbar ist. In der vorgelegten Arbeit wurden GC-HTC-IRMS Methoden zur Bestimmung der Halogen-, Wasserstoff- und Sauerstoff-Isotopenverhältnisse untersucht und erfolgreich zur Erweiterung der CSIA heteroatom-haltiger organischer Verbindungen genutzt.']
### GND ID:
['gnd:1105399826', 'gnd:36187-2', 'gnd:4027801-3', 'gnd:4037882-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864285698']
### GND class:
['Hitzfeld, Kristina', 'Eberhard Karls Universität Tübingen', 'Isotop', 'Massenspektrometrie']
<|eot_id|> |
3A864286783.jsonld | ['Ant colony optimization based inverse folding of mono- and bistable RNA macromolecules'] | ['Zusammenfassung: Since the discovery of structural conformations of DNA in the middle of the 20th century not only technologies that can elucidate structures of biologically relevant molecules have become more sophisticated, but the understanding of biological processes on the molecular level in general has grown tremendously in the last 60 years of research. In this same time, the early and dogmatic statement, according to which proteins are the only entities in molecular biological perception that can perform and provide necessary biological, e.g. enzymatic, functions within organisms, has undergone major revision. Of course, proteins do still perform the functions, which have been annotated, but in addition to the level of control of the proteins, specific RNA molecules, namely the non-coding RNAs, have been accounted to the executing functional level so far exclusive to proteins. As in the case of the proteins, a functional RNA receives its specific function from a biologically active structure conformation, which strongly correlates with the respective RNA sequence'] | ['gnd:1105499561', 'gnd:4531334-9', 'gnd:4816890-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864286783'] | ['Kleinkauf, Robert', 'Molekulare Bioinformatik', 'In silico-Methode'] | Document
### Title: ['Ant colony optimization based inverse folding of mono- and bistable RNA macromolecules']
### Abstract:
['Zusammenfassung: Since the discovery of structural conformations of DNA in the middle of the 20th century not only technologies that can elucidate structures of biologically relevant molecules have become more sophisticated, but the understanding of biological processes on the molecular level in general has grown tremendously in the last 60 years of research. In this same time, the early and dogmatic statement, according to which proteins are the only entities in molecular biological perception that can perform and provide necessary biological, e.g. enzymatic, functions within organisms, has undergone major revision. Of course, proteins do still perform the functions, which have been annotated, but in addition to the level of control of the proteins, specific RNA molecules, namely the non-coding RNAs, have been accounted to the executing functional level so far exclusive to proteins. As in the case of the proteins, a functional RNA receives its specific function from a biologically active structure conformation, which strongly correlates with the respective RNA sequence']
### GND ID:
['gnd:1105499561', 'gnd:4531334-9', 'gnd:4816890-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864286783']
### GND class:
['Kleinkauf, Robert', 'Molekulare Bioinformatik', 'In silico-Methode']
<|eot_id|> |
3A864327188.jsonld | ['Zink(II)-Imidazolat-Gerüste mit 4,5-disubstituierten Brückenliganden : Untersuchungen zur Bildung metastabiler Phasen und deren Charakterisierung'] | ['Zeolithische Imidazolat-Gerüste, Nanokristalle, hierarchisch poröse Nanomaterialien, Polymorphie, Linkerfehlordnung, Gerüstflexibilität. - Zeolitic imidazolate frameworks, nanocrystals, hierarchically porous nanomaterials, polymorphism, linker disorder, framework flexibility'] | ['gnd:110097769', 'gnd:173935540', 'gnd:4161308-9', 'gnd:4509028-2', 'gnd:64681-7', 'gnd:7755315-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864327188'] | ['Buhl, Josef-Christian', 'Behrens, Peter', 'Imidazolderivate', 'Mesoporöser Kristall', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Metallorganisches Netzwerk'] | Document
### Title: ['Zink(II)-Imidazolat-Gerüste mit 4,5-disubstituierten Brückenliganden : Untersuchungen zur Bildung metastabiler Phasen und deren Charakterisierung']
### Abstract:
['Zeolithische Imidazolat-Gerüste, Nanokristalle, hierarchisch poröse Nanomaterialien, Polymorphie, Linkerfehlordnung, Gerüstflexibilität. - Zeolitic imidazolate frameworks, nanocrystals, hierarchically porous nanomaterials, polymorphism, linker disorder, framework flexibility']
### GND ID:
['gnd:110097769', 'gnd:173935540', 'gnd:4161308-9', 'gnd:4509028-2', 'gnd:64681-7', 'gnd:7755315-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864327188']
### GND class:
['Buhl, Josef-Christian', 'Behrens, Peter', 'Imidazolderivate', 'Mesoporöser Kristall', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Metallorganisches Netzwerk']
<|eot_id|> |
3A864380739.jsonld | ['Essays on tackling economic inequalities'] | [['This thesis provides a differentiated picture of two interventions and one policy reform to alleviate economic inequality. In two chapters this dissertation examines whether out-of-school activities affect behavioral outcomes reflecting character, social and executive function skills. The first essay in this thesis analyzes the effect of performing sports on a regular basis on the formation of character and social skills. The findings confirm that sports is generally a social activity. For youths from less advantaged family backgrounds sports constitutes often the only quality pastime they engage in. Athletic involvement has beneficial effects on a broad range of character skills. These effects are largely driven by youths who do not engage in any other structured activity. Further, the effects can be interpreted as a broader effect of having access to an enriched social environment. The second essay examines the effect of working part-time while attending full-time schooling on the development of character skills and occupational choice strategies. Comparing adolescents who hold a job with adolescents who do not work, the former spend less time in front of a screen and invest more time in academic learning. Focusing on the time use of employed adolescents, working part-time has an ambivalent effect on time invested in other activities. It reduces their homework time as well as their nonproductive screen time. The results imply that holding a paid job while still in school reduces the uncertainty about own interests and talents and reduces the dependency on parents. A third essay evaluates the impact of the Tenancy Law Reform Act in 2001, a policy which targets to protect especially low-income households against rent increase. Germany is one of the European countries with the highest percentage of the population who lives in tenancies. This illustrates the importance of a functioning tenancy law, socially and economically. This essay analyzes the effect of the reform on the level of rents as well as on the residency discount. The two substantial parts of the reform were the reduction of the maximum rent increases for sitting tenants and the reduction of the minimum notice period until termination of a tenancy by the tenant. Estimating the effect over the distribution of rents, the reform shows a significant negative effect on rents that is stronger at higher quantiles. The annual residency discount increases with the reform during the first three years of a tenancy and vanishes thereafter. The evidence suggests that the reform was successful in curtailing rent increases especially for expensive apartments early in a tenancy. This thesis provides a differentiated picture on how economic inequalities can be alleviated. On the one side, this thesis focuses on the formation of character skills which are helpful for bringing especially unskilled people into employment and to better paid jobs. On the other side, this thesis focuses on a tenancy law reform that targeted to protect tenants against rent increases. While beneficial effects of structured leisure activities on the formation of character skills can be detected, one may be concerned that the tenancy law reform may not have been sufficiently targeted if considering the target of the reform to protect especially low-income households against rent increases.', 'Diese Dissertation liefert ein differenziertes Bild zu zwei Interventionen und einer Politikreform um die ökonomische Ungleichheit zu mildern. In zwei Aufsätzen wird dabei auf die Rolle von außerschulischen Aktivitäten bei der Bildung von charakterlichen und sozialen Fähigkeiten eingegangen. Der erste Aufsatz in dieser Dissertation betrachtet den Einfluss einer regelmäßigen Ausübung von Sport auf die Entwicklung von charakterlichen und sozialen Fähigkeiten. Die Ergebnisse zeigen, dass Sport generell eine soziale Aktivität ist. Für Jugendliche aus sozial benachteiligten Schichten stellt Sport meistens die einzige qualitativ wertvolle Freizeitbeschäftigung dar. Sport hat einen förderlichen Einfluss auf ein breites Spektrum an Kompetenzen. Dieser Einfluss wird insbesondere durch Jugendliche, die keine anderen strukturierten Freizeitaktivitäten ausüben, getrieben. Zudem kann der Effekt von Sport als einen umfassenderen Einfluss des Zugangs zu einer bereichernden sozialen Umgebung interpretiert werden. Der zweite Aufsatz untersucht den Einfluss der Ausübung von Nebenjobs als Schüler auf die Entwicklung der Persönlichkeit und von Einstellungen und Strategien zur eigenen Berufswahl. Die Ergebnisse zeigen, dass Schüler, die neben der schulischen Ausbildung eine beruflichen Tätigkeit nachgehen, mehr Zeit in schulisches Lernen investieren und weniger Zeit vor einem Bildschirm verbringen. Jedoch verringert sich die Zeit die mit Hausaufgaben verbracht wird wie auch die nichtproduktive Zeit vor einem Bildschirm, wenn neben der Schule noch gejobbt wird. Insgesamt hat ein Nebenjob förderliche Effekte auf die eigene Unabhängigkeit gegenüber den Eltern und verringert die Unsicherheit über eigene Interessen und Fähigkeiten. Der dritte Aufsatz der Dissertation evaluiert den Einfluss der Mietrechtsreform in Deutschland im Jahr 2001. Diese Reform beabsichtigt u.a. geringverdienende Haushalte vor Mietanstiegen zu schützen. Im Vergleich zu anderen europäischen Staaten weist Deutschland den höchsten Anteilssatz an der Bevölkerung auf, die in Mietverhältnissen leben. Ein funktionierendes Mietgesetz ist somit aus sozialer und ökonomischer Sicht wichtig. Die Reform umfasst u.a. die Reduzierung der möglichen Mieterhöhungen seitens des Vermieters sowie eine Verkürzung der Kündigungsfrist seitens des Mieters. Die Ergebnisse zeigen, dass die Reform für die ersten Jahre eines Mietverhältnisses einen negativen Effekt auf die Miethöhe hat, der jedoch mit ansteigender Dauer des Mietverhältnisses verschwindet. Zudem finden sich stärkere Effekte bei hochpreisigen Mietwohnungen. Diese Dissertation liefert ein differenziertes Bild, wie die ökonomische Ungleichheit gemildert werden kann. Auf der einen Seite beschäftigt sich die Dissertation mit der Bildung von nichtkognitiven Kompetenzen, die hilfreich sind um insbesondere Geringqualifizierte in Beschäftigung und zu besser bezahlten Jobs zu bringen. Auf der anderen Seite wird der Effekt einer Mietrechtsreform evaluiert. Während ein förderlicher Effekt von strukturierten Aktivitäten auf die Bildung von charakterlichen Fähigkeiten festgestellt werden kann, zeigt sich bei der Evaluierung der Mietrechtsreform, dass geringverdienende Haushalte nicht im gleichen oder höheren Umfang von der Reform profitieren als finanziell besser gestellte Haushalte.']] | ['gnd:1050624300', 'gnd:4186884-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864380739'] | ['Fuchs, Benjamin', 'Ungleichheit'] | Document
### Title: ['Essays on tackling economic inequalities']
### Abstract:
[['This thesis provides a differentiated picture of two interventions and one policy reform to alleviate economic inequality. In two chapters this dissertation examines whether out-of-school activities affect behavioral outcomes reflecting character, social and executive function skills. The first essay in this thesis analyzes the effect of performing sports on a regular basis on the formation of character and social skills. The findings confirm that sports is generally a social activity. For youths from less advantaged family backgrounds sports constitutes often the only quality pastime they engage in. Athletic involvement has beneficial effects on a broad range of character skills. These effects are largely driven by youths who do not engage in any other structured activity. Further, the effects can be interpreted as a broader effect of having access to an enriched social environment. The second essay examines the effect of working part-time while attending full-time schooling on the development of character skills and occupational choice strategies. Comparing adolescents who hold a job with adolescents who do not work, the former spend less time in front of a screen and invest more time in academic learning. Focusing on the time use of employed adolescents, working part-time has an ambivalent effect on time invested in other activities. It reduces their homework time as well as their nonproductive screen time. The results imply that holding a paid job while still in school reduces the uncertainty about own interests and talents and reduces the dependency on parents. A third essay evaluates the impact of the Tenancy Law Reform Act in 2001, a policy which targets to protect especially low-income households against rent increase. Germany is one of the European countries with the highest percentage of the population who lives in tenancies. This illustrates the importance of a functioning tenancy law, socially and economically. This essay analyzes the effect of the reform on the level of rents as well as on the residency discount. The two substantial parts of the reform were the reduction of the maximum rent increases for sitting tenants and the reduction of the minimum notice period until termination of a tenancy by the tenant. Estimating the effect over the distribution of rents, the reform shows a significant negative effect on rents that is stronger at higher quantiles. The annual residency discount increases with the reform during the first three years of a tenancy and vanishes thereafter. The evidence suggests that the reform was successful in curtailing rent increases especially for expensive apartments early in a tenancy. This thesis provides a differentiated picture on how economic inequalities can be alleviated. On the one side, this thesis focuses on the formation of character skills which are helpful for bringing especially unskilled people into employment and to better paid jobs. On the other side, this thesis focuses on a tenancy law reform that targeted to protect tenants against rent increases. While beneficial effects of structured leisure activities on the formation of character skills can be detected, one may be concerned that the tenancy law reform may not have been sufficiently targeted if considering the target of the reform to protect especially low-income households against rent increases.', 'Diese Dissertation liefert ein differenziertes Bild zu zwei Interventionen und einer Politikreform um die ökonomische Ungleichheit zu mildern. In zwei Aufsätzen wird dabei auf die Rolle von außerschulischen Aktivitäten bei der Bildung von charakterlichen und sozialen Fähigkeiten eingegangen. Der erste Aufsatz in dieser Dissertation betrachtet den Einfluss einer regelmäßigen Ausübung von Sport auf die Entwicklung von charakterlichen und sozialen Fähigkeiten. Die Ergebnisse zeigen, dass Sport generell eine soziale Aktivität ist. Für Jugendliche aus sozial benachteiligten Schichten stellt Sport meistens die einzige qualitativ wertvolle Freizeitbeschäftigung dar. Sport hat einen förderlichen Einfluss auf ein breites Spektrum an Kompetenzen. Dieser Einfluss wird insbesondere durch Jugendliche, die keine anderen strukturierten Freizeitaktivitäten ausüben, getrieben. Zudem kann der Effekt von Sport als einen umfassenderen Einfluss des Zugangs zu einer bereichernden sozialen Umgebung interpretiert werden. Der zweite Aufsatz untersucht den Einfluss der Ausübung von Nebenjobs als Schüler auf die Entwicklung der Persönlichkeit und von Einstellungen und Strategien zur eigenen Berufswahl. Die Ergebnisse zeigen, dass Schüler, die neben der schulischen Ausbildung eine beruflichen Tätigkeit nachgehen, mehr Zeit in schulisches Lernen investieren und weniger Zeit vor einem Bildschirm verbringen. Jedoch verringert sich die Zeit die mit Hausaufgaben verbracht wird wie auch die nichtproduktive Zeit vor einem Bildschirm, wenn neben der Schule noch gejobbt wird. Insgesamt hat ein Nebenjob förderliche Effekte auf die eigene Unabhängigkeit gegenüber den Eltern und verringert die Unsicherheit über eigene Interessen und Fähigkeiten. Der dritte Aufsatz der Dissertation evaluiert den Einfluss der Mietrechtsreform in Deutschland im Jahr 2001. Diese Reform beabsichtigt u.a. geringverdienende Haushalte vor Mietanstiegen zu schützen. Im Vergleich zu anderen europäischen Staaten weist Deutschland den höchsten Anteilssatz an der Bevölkerung auf, die in Mietverhältnissen leben. Ein funktionierendes Mietgesetz ist somit aus sozialer und ökonomischer Sicht wichtig. Die Reform umfasst u.a. die Reduzierung der möglichen Mieterhöhungen seitens des Vermieters sowie eine Verkürzung der Kündigungsfrist seitens des Mieters. Die Ergebnisse zeigen, dass die Reform für die ersten Jahre eines Mietverhältnisses einen negativen Effekt auf die Miethöhe hat, der jedoch mit ansteigender Dauer des Mietverhältnisses verschwindet. Zudem finden sich stärkere Effekte bei hochpreisigen Mietwohnungen. Diese Dissertation liefert ein differenziertes Bild, wie die ökonomische Ungleichheit gemildert werden kann. Auf der einen Seite beschäftigt sich die Dissertation mit der Bildung von nichtkognitiven Kompetenzen, die hilfreich sind um insbesondere Geringqualifizierte in Beschäftigung und zu besser bezahlten Jobs zu bringen. Auf der anderen Seite wird der Effekt einer Mietrechtsreform evaluiert. Während ein förderlicher Effekt von strukturierten Aktivitäten auf die Bildung von charakterlichen Fähigkeiten festgestellt werden kann, zeigt sich bei der Evaluierung der Mietrechtsreform, dass geringverdienende Haushalte nicht im gleichen oder höheren Umfang von der Reform profitieren als finanziell besser gestellte Haushalte.']]
### GND ID:
['gnd:1050624300', 'gnd:4186884-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864380739']
### GND class:
['Fuchs, Benjamin', 'Ungleichheit']
<|eot_id|> |
3A864381360.jsonld | ['A multiple-curve Lévy forward rate model in a two-price economy'] | ['Zusammenfassung: In this thesis, we combine and merge the multiple-curve approach and the two-price theory based on acceptability indices in a Lévy interest rate model. A multiple-curve Heath-Jarrow-Morton (HJM) forward rate model driven by time-inhomogeneous Lévy processes (a multiple-curve Lévy term structure model) is presented. We find deterministic conditions which ensure the monotonicity of the curves. Explicit valuation formulas for some interest rate derivatives are established, namely forward rate agreements, swaps, caps, floors and digital options. These formulas can numerically be evaluated very fast by using the Fourier based valuation method. Furthermore, we apply the two-price theory to this multiple-curve setting. Ask and bid model prices of caplets, floorlets and digital options are derived. A general procedure how to calibrate this two-price multiple-curve interest rate model to market data is described. As a practical application, the model is calibrated to market prices of caps for dates before and after the global financial crisis'] | ['gnd:1108295533', 'gnd:4017195-4', 'gnd:4057630-9', 'gnd:4114309-7', 'gnd:4117720-4', 'gnd:4180967-1', 'gnd:4314333-7', 'gnd:4642940-2', 'gnd:7635855-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864381360'] | ['Gerhart, Christoph', 'Finanzmathematik', 'Stochastischer Prozess', 'Kreditrisiko', 'Zinsstrukturtheorie', 'Semimartingal', 'Liquiditätsrisiko', 'HJM-Modell', 'Finanzkrise'] | Document
### Title: ['A multiple-curve Lévy forward rate model in a two-price economy']
### Abstract:
['Zusammenfassung: In this thesis, we combine and merge the multiple-curve approach and the two-price theory based on acceptability indices in a Lévy interest rate model. A multiple-curve Heath-Jarrow-Morton (HJM) forward rate model driven by time-inhomogeneous Lévy processes (a multiple-curve Lévy term structure model) is presented. We find deterministic conditions which ensure the monotonicity of the curves. Explicit valuation formulas for some interest rate derivatives are established, namely forward rate agreements, swaps, caps, floors and digital options. These formulas can numerically be evaluated very fast by using the Fourier based valuation method. Furthermore, we apply the two-price theory to this multiple-curve setting. Ask and bid model prices of caplets, floorlets and digital options are derived. A general procedure how to calibrate this two-price multiple-curve interest rate model to market data is described. As a practical application, the model is calibrated to market prices of caps for dates before and after the global financial crisis']
### GND ID:
['gnd:1108295533', 'gnd:4017195-4', 'gnd:4057630-9', 'gnd:4114309-7', 'gnd:4117720-4', 'gnd:4180967-1', 'gnd:4314333-7', 'gnd:4642940-2', 'gnd:7635855-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864381360']
### GND class:
['Gerhart, Christoph', 'Finanzmathematik', 'Stochastischer Prozess', 'Kreditrisiko', 'Zinsstrukturtheorie', 'Semimartingal', 'Liquiditätsrisiko', 'HJM-Modell', 'Finanzkrise']
<|eot_id|> |
3A864404220.jsonld | ['Investigation of membrane reactors based on dense mixed-conducting ceramics for separation and catalysis process'] | ['Dense ceramic membrane, oxygen separation, hydrogen separation, catalytic membrane reactor. - Gasdichte keramische Membran, Sauerstoffabtrennung, Wasserstoffabtrennung, katalytischer Membranreaktor'] | ['gnd:1157033431', 'gnd:1166955184', 'gnd:120131714', 'gnd:4078395-9', 'gnd:4555095-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864404220'] | ['Garnweitner, Georg', 'Caro, Jürgen', 'Feldhoff, Armin', 'Trennverfahren', 'Membranreaktor', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Investigation of membrane reactors based on dense mixed-conducting ceramics for separation and catalysis process']
### Abstract:
['Dense ceramic membrane, oxygen separation, hydrogen separation, catalytic membrane reactor. - Gasdichte keramische Membran, Sauerstoffabtrennung, Wasserstoffabtrennung, katalytischer Membranreaktor']
### GND ID:
['gnd:1157033431', 'gnd:1166955184', 'gnd:120131714', 'gnd:4078395-9', 'gnd:4555095-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864404220']
### GND class:
['Garnweitner, Georg', 'Caro, Jürgen', 'Feldhoff, Armin', 'Trennverfahren', 'Membranreaktor', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A864509960.jsonld | ['On the dynamics of Marcus type stochastic differential equations'] | ['In this work metric dynamical systems (MDS) driven by Lévy processes in positive and negative time are constructed. Ergodicity and invariance for such classes of MDS are shown. Further a perfection theorem for càdlàg processes and the conjugacy of solution of Marcus type SDEs driven by Lévy processes and solutions of certain RDEs is proven. This result is applied to verify locally conjugacy of solutions of Marcus type SDEs and solutions of linearised Marcus type SDEs (referring to the results of Hartman–Grobman for deterministic ODEs). Subsequently, stable and unstable manifolds are constructed using the Lyapunov–Perron method. Furthermore, the Lyapunov–Perron method is modified to prove a foliation of the stable manifold. Conclusively, Marcus type stochastic differential delay equations (MSDDEs) are considered. Conditions for existence and uniqueness of solutions are deduced, which implies the semiflow property for solutions of MSDDEs'] | ['gnd:1109924496', 'gnd:36164-1', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864509960'] | ['Kümmel, Kai', 'Friedrich-Schiller-Universität Jena', 'Lévy-Prozess'] | Document
### Title: ['On the dynamics of Marcus type stochastic differential equations']
### Abstract:
['In this work metric dynamical systems (MDS) driven by Lévy processes in positive and negative time are constructed. Ergodicity and invariance for such classes of MDS are shown. Further a perfection theorem for càdlàg processes and the conjugacy of solution of Marcus type SDEs driven by Lévy processes and solutions of certain RDEs is proven. This result is applied to verify locally conjugacy of solutions of Marcus type SDEs and solutions of linearised Marcus type SDEs (referring to the results of Hartman–Grobman for deterministic ODEs). Subsequently, stable and unstable manifolds are constructed using the Lyapunov–Perron method. Furthermore, the Lyapunov–Perron method is modified to prove a foliation of the stable manifold. Conclusively, Marcus type stochastic differential delay equations (MSDDEs) are considered. Conditions for existence and uniqueness of solutions are deduced, which implies the semiflow property for solutions of MSDDEs']
### GND ID:
['gnd:1109924496', 'gnd:36164-1', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864509960']
### GND class:
['Kümmel, Kai', 'Friedrich-Schiller-Universität Jena', 'Lévy-Prozess']
<|eot_id|> |
3A864708092.jsonld | ['Mit Teamreflexion zum Teamerfolg: Analyse, Modellierung und gezielte Förderung kollektiver Reflexionsprozesse'] | [['In literature, reflection (i. e. critically challenging one’s own thinking and acting) is referred to as a key factor for the regulation of adaptive processes. To date, however, little is known about the nature and the effects of individual and team reflection. In addition, there exist only few standardized and empirically proven training programs for the advancement of reflective competence in work teams. This work aims at expanding the current state of knowledge by researching collective reflective processes from a holistic perspective. For this purpose, an extensive literature analysis and an interview-study with practitioners from the field of product development were conducted and a theory of team reflection and its effects has been developed. The theoretical assumptions were empirically validated by means of a quasi-experimental study with eight student teams. The results of the preceding research steps formed the starting point for the conception of a three-day training program for the goal-oriented advancement of reflective competence in design teams, which was evaluated in an empirical case-study approach. For this, three project teams from German companies attended the training sessions. In order to assess the potency of the training program, the teams’ reflective processes during a complex problem solving task were compared to those of a student control group. In addition, in all groups a qualitative analysis of team collaboration, of the development of shared mental models, and of the problem solving results was conducted. The findings of the study support the effectivity of the training program and provide insights in the positive effects of team reflection on collective thinking processes, collaboration, and group performance.', 'In der Literatur wird der Reflexion, also dem kritischen Hinterfragen des eigenen Denkens und Handelns, eine Schlüsselrolle für die Steuerung von Anpassungsprozessen zugeschrieben. Trotz dieser zentralen Bedeutung ist der Erkenntnisstand über das Wesen und die Effekte von individueller und Teamreflexion bis dato unzureichend. Darüber hinaus existieren derzeit wenige standardisierte und in ihrer Wirksamkeit erprobte Trainingsansätze zur Schulung von Reflexionskompetenz in Arbeitsgruppen. Die vorliegende Arbeit trägt zur Erweiterung des bisherigen Erkenntnisstands bei, indem Reflexionsprozesse in Gruppen unter einem ganzheitlichen Blickwinkel erforscht werden. Zu diesem Zweck wurde auf der Basis einer umfassenden Literaturanalyse und einer Interviewstudie mit Praktikern aus der Produktentwicklung eine Theorie der Teamreflexion und ihrer Effekte entwickelt. Die theoretischen Annahmen wurden in einer quasi-experimentellen Laborstudie mit acht Studententeams validiert. Die gewonnenen Erkenntnisse bildeten die Basis für die Konzeption eines dreitägigen Trainingsprogramms zur Förderung von Reflexionskompetenz in Produktentwicklungsteams, welches im Rahmen einer empirischen Einzelfalluntersuchung auf seine Wirksamkeit überprüft wurde. Dazu nahmen drei Projektteams aus deutschen Unternehmen an der Trainingsmaßnahme teil. Für die Beurteilung des Trainingserfolgs wurde deren Reflexionsverhalten beim Lösen einer komplexen Problemstellung mit dem einer studentischen Kontrollgruppe verglichen. Zusätzlich wurde in allen Gruppen eine qualitative Analyse der Zusammenarbeit, der Entwicklung geteilter mentaler Modelle und des Problemlöseerfolgs vorgenommen. Die Ergebnisse der Untersuchung sprechen für die Wirksamkeit des Trainingsprogramms und liefern darüber hinaus Erkenntnisse über die positiven Auswirkungen von Teamreflexion auf das Denken, die Zusammenarbeit und die Arbeitsergebnisse von Gruppen.']] | ['gnd:1068114681', 'gnd:1105494322', 'gnd:12086603X', 'gnd:4124562-3', 'gnd:7733566-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864708092'] | ['University of Bamberg Press', 'Weixelbaum, Ilona', 'Dörner, Dietrich', 'Arbeitsgruppe', 'Reflexion (Psychologie)'] | Document
### Title: ['Mit Teamreflexion zum Teamerfolg: Analyse, Modellierung und gezielte Förderung kollektiver Reflexionsprozesse']
### Abstract:
[['In literature, reflection (i. e. critically challenging one’s own thinking and acting) is referred to as a key factor for the regulation of adaptive processes. To date, however, little is known about the nature and the effects of individual and team reflection. In addition, there exist only few standardized and empirically proven training programs for the advancement of reflective competence in work teams. This work aims at expanding the current state of knowledge by researching collective reflective processes from a holistic perspective. For this purpose, an extensive literature analysis and an interview-study with practitioners from the field of product development were conducted and a theory of team reflection and its effects has been developed. The theoretical assumptions were empirically validated by means of a quasi-experimental study with eight student teams. The results of the preceding research steps formed the starting point for the conception of a three-day training program for the goal-oriented advancement of reflective competence in design teams, which was evaluated in an empirical case-study approach. For this, three project teams from German companies attended the training sessions. In order to assess the potency of the training program, the teams’ reflective processes during a complex problem solving task were compared to those of a student control group. In addition, in all groups a qualitative analysis of team collaboration, of the development of shared mental models, and of the problem solving results was conducted. The findings of the study support the effectivity of the training program and provide insights in the positive effects of team reflection on collective thinking processes, collaboration, and group performance.', 'In der Literatur wird der Reflexion, also dem kritischen Hinterfragen des eigenen Denkens und Handelns, eine Schlüsselrolle für die Steuerung von Anpassungsprozessen zugeschrieben. Trotz dieser zentralen Bedeutung ist der Erkenntnisstand über das Wesen und die Effekte von individueller und Teamreflexion bis dato unzureichend. Darüber hinaus existieren derzeit wenige standardisierte und in ihrer Wirksamkeit erprobte Trainingsansätze zur Schulung von Reflexionskompetenz in Arbeitsgruppen. Die vorliegende Arbeit trägt zur Erweiterung des bisherigen Erkenntnisstands bei, indem Reflexionsprozesse in Gruppen unter einem ganzheitlichen Blickwinkel erforscht werden. Zu diesem Zweck wurde auf der Basis einer umfassenden Literaturanalyse und einer Interviewstudie mit Praktikern aus der Produktentwicklung eine Theorie der Teamreflexion und ihrer Effekte entwickelt. Die theoretischen Annahmen wurden in einer quasi-experimentellen Laborstudie mit acht Studententeams validiert. Die gewonnenen Erkenntnisse bildeten die Basis für die Konzeption eines dreitägigen Trainingsprogramms zur Förderung von Reflexionskompetenz in Produktentwicklungsteams, welches im Rahmen einer empirischen Einzelfalluntersuchung auf seine Wirksamkeit überprüft wurde. Dazu nahmen drei Projektteams aus deutschen Unternehmen an der Trainingsmaßnahme teil. Für die Beurteilung des Trainingserfolgs wurde deren Reflexionsverhalten beim Lösen einer komplexen Problemstellung mit dem einer studentischen Kontrollgruppe verglichen. Zusätzlich wurde in allen Gruppen eine qualitative Analyse der Zusammenarbeit, der Entwicklung geteilter mentaler Modelle und des Problemlöseerfolgs vorgenommen. Die Ergebnisse der Untersuchung sprechen für die Wirksamkeit des Trainingsprogramms und liefern darüber hinaus Erkenntnisse über die positiven Auswirkungen von Teamreflexion auf das Denken, die Zusammenarbeit und die Arbeitsergebnisse von Gruppen.']]
### GND ID:
['gnd:1068114681', 'gnd:1105494322', 'gnd:12086603X', 'gnd:4124562-3', 'gnd:7733566-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864708092']
### GND class:
['University of Bamberg Press', 'Weixelbaum, Ilona', 'Dörner, Dietrich', 'Arbeitsgruppe', 'Reflexion (Psychologie)']
<|eot_id|> |
3A864716753.jsonld | ['The impact of viruses on the marine deep biosphere'] | [['The aim of this thesis was to investigate the role of viruses within the marine deep biosphere - on microbial communities in tidal-flat sediments and virus-host interactions in the extremely oligotrophic South Pacific Gyre (SPG) sediments. The first study reports viral production-rates by two different methods along a 4 m long core derived from the tidal-flat sediments. Rate measurements open the possibility to estimate the impact of viruses on indigenous microbial communities, e.g. virus-induced prokaryotic mortality. The other two studies were based on previous findings that reported virus-to-cell ratios dramatically increased with depth in SPG sediments. Taking into account that virus particles, composed of mainly nucleic acids and a protein capsule, display easily degradable organic matter, we hypothesized that microbial communities might potentially feed on the building blocks of viruses. To test this hypothesis, exoenzyme activity measurements as well as feeding experiments were performed. <engl.>', 'Ziel dieser Arbeit waren Untersuchungen zur der Rolle von Viren in der tiefen Biosphäre - auf mikrobielle Lebensgemeinschaften der Wattsedimente sowie von Viren-Wirt Interaktionen in den extrem oligotrophen Sedimenten des südpazifischen Wirbels (SPG). Die erste Studie befasst sich dabei mit der Analyse von Virenproduktionsraten mittels zwei verschiedener Methoden entlang eines 4 Meter langen Kerns in Wattsedimenten. Messungen dieser Raten ermöglichen eine Abschätzung der Bedeutung von Viren auf indigene mikrobiellen Gemeinschaften, beispielsweise über Schätzungen von Mortalitätsraten. Die zwei anderen Studien basieren auf Erkenntnissen einer früheren Untersuchung im SPG, in der steigende Viren:Bakterien-Verhältnisse mit zunehmender Sedimenttiefe berichtet wurden. Wir stellten daher die Hypothese auf, dass die indigenen Mikroorganismen die Grundbausteine der Virenpartikel als Kohlenstoffquelle nutzen könnten. Diese Theorie wurde mittels Messungen von Exoenzym-Aktivitäten als auch Frass-Experimenten. <dt.>']] | ['gnd:4063589-2', 'gnd:4115878-7', 'gnd:4125508-2', 'gnd:4140407-5', 'gnd:4140904-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864716753'] | ['Viren', 'Pazifischer Ozean', 'Bakteriophagen', 'Biosphäre', 'Tiefenwasser'] | Document
### Title: ['The impact of viruses on the marine deep biosphere']
### Abstract:
[['The aim of this thesis was to investigate the role of viruses within the marine deep biosphere - on microbial communities in tidal-flat sediments and virus-host interactions in the extremely oligotrophic South Pacific Gyre (SPG) sediments. The first study reports viral production-rates by two different methods along a 4 m long core derived from the tidal-flat sediments. Rate measurements open the possibility to estimate the impact of viruses on indigenous microbial communities, e.g. virus-induced prokaryotic mortality. The other two studies were based on previous findings that reported virus-to-cell ratios dramatically increased with depth in SPG sediments. Taking into account that virus particles, composed of mainly nucleic acids and a protein capsule, display easily degradable organic matter, we hypothesized that microbial communities might potentially feed on the building blocks of viruses. To test this hypothesis, exoenzyme activity measurements as well as feeding experiments were performed. <engl.>', 'Ziel dieser Arbeit waren Untersuchungen zur der Rolle von Viren in der tiefen Biosphäre - auf mikrobielle Lebensgemeinschaften der Wattsedimente sowie von Viren-Wirt Interaktionen in den extrem oligotrophen Sedimenten des südpazifischen Wirbels (SPG). Die erste Studie befasst sich dabei mit der Analyse von Virenproduktionsraten mittels zwei verschiedener Methoden entlang eines 4 Meter langen Kerns in Wattsedimenten. Messungen dieser Raten ermöglichen eine Abschätzung der Bedeutung von Viren auf indigene mikrobiellen Gemeinschaften, beispielsweise über Schätzungen von Mortalitätsraten. Die zwei anderen Studien basieren auf Erkenntnissen einer früheren Untersuchung im SPG, in der steigende Viren:Bakterien-Verhältnisse mit zunehmender Sedimenttiefe berichtet wurden. Wir stellten daher die Hypothese auf, dass die indigenen Mikroorganismen die Grundbausteine der Virenpartikel als Kohlenstoffquelle nutzen könnten. Diese Theorie wurde mittels Messungen von Exoenzym-Aktivitäten als auch Frass-Experimenten. <dt.>']]
### GND ID:
['gnd:4063589-2', 'gnd:4115878-7', 'gnd:4125508-2', 'gnd:4140407-5', 'gnd:4140904-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864716753']
### GND class:
['Viren', 'Pazifischer Ozean', 'Bakteriophagen', 'Biosphäre', 'Tiefenwasser']
<|eot_id|> |
3A864745850.jsonld | ['Multiple contrast tests with repeated and multiple endpoints : with biological applications'] | ['Longitudinal data, linear mixed-effects model, multiple hypothesis tests, simultaneous confidence intervals, degrees of freedom, missing values. - Longitudinale Daten, lineares gemischtes Modell, multiple Hypothesentests, simultane Konfidenzintervalle, Freiheitsgrade, fehlende Werte'] | ['gnd:4729990-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864745850'] | ['Biostatistik', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Multiple contrast tests with repeated and multiple endpoints : with biological applications']
### Abstract:
['Longitudinal data, linear mixed-effects model, multiple hypothesis tests, simultaneous confidence intervals, degrees of freedom, missing values. - Longitudinale Daten, lineares gemischtes Modell, multiple Hypothesentests, simultane Konfidenzintervalle, Freiheitsgrade, fehlende Werte']
### GND ID:
['gnd:4729990-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864745850']
### GND class:
['Biostatistik', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A864770391.jsonld | ['On polarization types and monodromy of Lagrangian fibrations'] | ['Irreducible holomorphic symplectic manifold, hyperkähler manifold, Lagrangian fibration, polarization type, monodromy invariant. - Irreduzible holomorph symplektische Mannigfaltigkeit, Hyperkähler Mannigfaltigkeit, Lagrangefaserung, Polarisierungstyp, Monodromieinvariante'] | ['gnd:4290704-4', 'gnd:4619282-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864770391'] | ['Symplektische Mannigfaltigkeit', 'Hyper-Kähler-Geometrie', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['On polarization types and monodromy of Lagrangian fibrations']
### Abstract:
['Irreducible holomorphic symplectic manifold, hyperkähler manifold, Lagrangian fibration, polarization type, monodromy invariant. - Irreduzible holomorph symplektische Mannigfaltigkeit, Hyperkähler Mannigfaltigkeit, Lagrangefaserung, Polarisierungstyp, Monodromieinvariante']
### GND ID:
['gnd:4290704-4', 'gnd:4619282-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864770391']
### GND class:
['Symplektische Mannigfaltigkeit', 'Hyper-Kähler-Geometrie', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A864810490.jsonld | ['Young star V1331 Cygni takes centre stage'] | ['With first epoch observations of HST-WFPC2 already available for V1331 Cyg from year 2000, second epoch data was observed in 2009. I study the time evolution of circumstellar nebula by analysing and comparing the two epochs of HST observations. Radial colour analysis of outer dust arc is done as well to check whether the radial grain size distribution was modified by a previous FUor wind. HST images are cleaned using IRAF and PSF subtraction is done using model PSF generated from Tiny Tim software. IDL scripts and routines are used to do proper motion analysis. The outer dust arc is found to be expanding at ≈ 14.8± 3.6 km s−1 on average. The expansion velocity of inner ring is less consistent, between 0.8 km s−1 and 3.4 km s−1. Radial colour profiles do not hint on particle separation. The results support the view that V1331 Cyg underwent an FU Orionis outburst a few thousand years ago. Additional data from other instruments - TLS, UKIDSS, SPITZER, HERSCHEL, SUBARU, PdBI and SMA is also incorporated. I use it to improve the understanding of the young star in terms of environment, viewing angle, bipolar outflow length and missing ring section. The gap between the outer and inner dust arcs is found to be real. HST planetary camera image reveals a knot like feature at 220 au from the central source. Subaru image shows scattered light in the same direction as that of the knot. Preliminary results from the latest PdBI continuum map also hint on the knot being a real feature. It is evident from the knot photometry that it is not a binary stellar companion. The starlight scattered from the dust is seen in HST images. Missing ring section could be a result of shadowing due to presence of the knot. By viewing V1331 Cyg almost pole-on, the length of the bipolar outflow is updated to be 10 parsec or even more.'] | ['gnd:1110199260', 'gnd:1135746702', 'gnd:36164-1', 'gnd:4114619-0', 'gnd:4260288-9', 'gnd:4302708-8', 'gnd:4348852-3', 'gnd:4384866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864810490'] | ['Choudhary, Arpita', 'Herschel-Weltraumteleskop', 'Friedrich-Schiller-Universität Jena', 'Molekülwolke', 'Hubble-Weltraumteleskop', 'Thüringer Landessternwarte', 'Junger Stern', 'Kosmischer Staub'] | Document
### Title: ['Young star V1331 Cygni takes centre stage']
### Abstract:
['With first epoch observations of HST-WFPC2 already available for V1331 Cyg from year 2000, second epoch data was observed in 2009. I study the time evolution of circumstellar nebula by analysing and comparing the two epochs of HST observations. Radial colour analysis of outer dust arc is done as well to check whether the radial grain size distribution was modified by a previous FUor wind. HST images are cleaned using IRAF and PSF subtraction is done using model PSF generated from Tiny Tim software. IDL scripts and routines are used to do proper motion analysis. The outer dust arc is found to be expanding at ≈ 14.8± 3.6 km s−1 on average. The expansion velocity of inner ring is less consistent, between 0.8 km s−1 and 3.4 km s−1. Radial colour profiles do not hint on particle separation. The results support the view that V1331 Cyg underwent an FU Orionis outburst a few thousand years ago. Additional data from other instruments - TLS, UKIDSS, SPITZER, HERSCHEL, SUBARU, PdBI and SMA is also incorporated. I use it to improve the understanding of the young star in terms of environment, viewing angle, bipolar outflow length and missing ring section. The gap between the outer and inner dust arcs is found to be real. HST planetary camera image reveals a knot like feature at 220 au from the central source. Subaru image shows scattered light in the same direction as that of the knot. Preliminary results from the latest PdBI continuum map also hint on the knot being a real feature. It is evident from the knot photometry that it is not a binary stellar companion. The starlight scattered from the dust is seen in HST images. Missing ring section could be a result of shadowing due to presence of the knot. By viewing V1331 Cyg almost pole-on, the length of the bipolar outflow is updated to be 10 parsec or even more.']
### GND ID:
['gnd:1110199260', 'gnd:1135746702', 'gnd:36164-1', 'gnd:4114619-0', 'gnd:4260288-9', 'gnd:4302708-8', 'gnd:4348852-3', 'gnd:4384866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A864810490']
### GND class:
['Choudhary, Arpita', 'Herschel-Weltraumteleskop', 'Friedrich-Schiller-Universität Jena', 'Molekülwolke', 'Hubble-Weltraumteleskop', 'Thüringer Landessternwarte', 'Junger Stern', 'Kosmischer Staub']
<|eot_id|> |
3A865435863.jsonld | ['Understanding metalepsis : the hermeneutics of narrative transgression'] | ['"Understanding Metalepsis provides a state-of-the-art overview of the narratological concept of metalepsis and develops new ways of investigating the forms and functions of metaleptic narratives. Informed by a hermeneutic perspective, this study offers not only an account of the complexities that characterize the process of understanding metaleptic phenomena, but also metatheoretical insights into the hermeneutics of narratology" --'] | ['gnd:135484553', 'gnd:4152975-3', 'gnd:4792664-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865435863'] | ['Hanebeck, Julian', 'Erzähltheorie', 'Metalepse'] | Document
### Title: ['Understanding metalepsis : the hermeneutics of narrative transgression']
### Abstract:
['"Understanding Metalepsis provides a state-of-the-art overview of the narratological concept of metalepsis and develops new ways of investigating the forms and functions of metaleptic narratives. Informed by a hermeneutic perspective, this study offers not only an account of the complexities that characterize the process of understanding metaleptic phenomena, but also metatheoretical insights into the hermeneutics of narratology" --']
### GND ID:
['gnd:135484553', 'gnd:4152975-3', 'gnd:4792664-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865435863']
### GND class:
['Hanebeck, Julian', 'Erzähltheorie', 'Metalepse']
<|eot_id|> |
3A865480737.jsonld | ['Topological insulators and semimetals : theory for bulk and surface electronic properties : [kumulative Dissertation]'] | [['In the present thesis, electronic properties of topologically non-trivial materials are investigated. Theoretical calculations of electronic band structures for various system geometries are performed by means of an ab initio based Tight-Binding model. The related topological invariants are calculated for both insulating and metallic materials by methods based on the Berry-phase concept. Topological phase diagrams are generated, showing the different topological phases which can be entered by the examined systems under a change of external parameters, such as strain, disorder or magnetic field. These results are confirmed by simultaneous investigations of the surface electronic band structure featuring topologically protected surface states in the case of non-trivial topological phases.', 'Festkörperphysik; Elektronenstruktur; topologische Isolatoren; Weyl-Semimetalle; Tight-Binding-Modell', 'In der vorliegenden Arbeit werden die elektronischen Eigenschaften topologisch nicht-trivialer Materialien untersucht. Unter Verwendung des auf ab initio-Rechnungen basierenden Tight-Binding-Modells werden für verschiedene Systemgeometrien elektronische Bandstrukturen berechnet. Für isolierende und metallische Materialien werden zudem die entsprechenden topologischen Invarianten mit Hilfe des Berry-Phasen-Konzepts bestimmt. Anschließend werden topologische Phasendiagramme erstellt, die die verschiedenen topologischen Phasen zeigen, die von den untersuchten Systemen unter Änderung externer Parameter wie der Verzerrung, Unordnung oder magnetischen Feldes eingenommen werden können. Diese Ergebnisse werden weiterhin bestätigt durch Berechnungen der elektronischen Bandstruktur an Oberflächen der entsprechenden Systeme, die im Falle nichttrivialer topologischer Phasen topologisch geschützte Oberflächenzustände beinhalten.', 'solid state physics; electronic structure; topological insulators; Weyl semimetals; tight-binding model']] | ['gnd:1035519526', 'gnd:1145587879', 'gnd:2024276-1', 'gnd:4158819-8', 'gnd:4198877-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865480737'] | ['Topologischer Isolator', 'Mertig, Ingrid', 'Martin-Luther-Universität Halle-Wittenberg', 'Halbmetall', 'Bandstrukturberechnung'] | Document
### Title: ['Topological insulators and semimetals : theory for bulk and surface electronic properties : [kumulative Dissertation]']
### Abstract:
[['In the present thesis, electronic properties of topologically non-trivial materials are investigated. Theoretical calculations of electronic band structures for various system geometries are performed by means of an ab initio based Tight-Binding model. The related topological invariants are calculated for both insulating and metallic materials by methods based on the Berry-phase concept. Topological phase diagrams are generated, showing the different topological phases which can be entered by the examined systems under a change of external parameters, such as strain, disorder or magnetic field. These results are confirmed by simultaneous investigations of the surface electronic band structure featuring topologically protected surface states in the case of non-trivial topological phases.', 'Festkörperphysik; Elektronenstruktur; topologische Isolatoren; Weyl-Semimetalle; Tight-Binding-Modell', 'In der vorliegenden Arbeit werden die elektronischen Eigenschaften topologisch nicht-trivialer Materialien untersucht. Unter Verwendung des auf ab initio-Rechnungen basierenden Tight-Binding-Modells werden für verschiedene Systemgeometrien elektronische Bandstrukturen berechnet. Für isolierende und metallische Materialien werden zudem die entsprechenden topologischen Invarianten mit Hilfe des Berry-Phasen-Konzepts bestimmt. Anschließend werden topologische Phasendiagramme erstellt, die die verschiedenen topologischen Phasen zeigen, die von den untersuchten Systemen unter Änderung externer Parameter wie der Verzerrung, Unordnung oder magnetischen Feldes eingenommen werden können. Diese Ergebnisse werden weiterhin bestätigt durch Berechnungen der elektronischen Bandstruktur an Oberflächen der entsprechenden Systeme, die im Falle nichttrivialer topologischer Phasen topologisch geschützte Oberflächenzustände beinhalten.', 'solid state physics; electronic structure; topological insulators; Weyl semimetals; tight-binding model']]
### GND ID:
['gnd:1035519526', 'gnd:1145587879', 'gnd:2024276-1', 'gnd:4158819-8', 'gnd:4198877-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865480737']
### GND class:
['Topologischer Isolator', 'Mertig, Ingrid', 'Martin-Luther-Universität Halle-Wittenberg', 'Halbmetall', 'Bandstrukturberechnung']
<|eot_id|> |
3A865502579.jsonld | ['Strukturelle und funktionelle Charakterisierung von Exosomen aus Prostatakarzinomzellen'] | [['Prostatakrebs, Zellkommunikation, Vesikel, Tumorwachstum, Exosomen, prostate, cancer, exosomes, microenvironment, protein uptake', 'Exosomes are small vesicles with a diameter between 50–150nm, which are secreted into the extracellular space. Emerging evidence shows that they may serve as vehicles for signal molecules in order to modulate target cells. As such, exosomes may play a pivotal role in tumor progression by influencing the remodeling of the tumor environment and modulating tumor associated non-malignant cells. A better understanding of composition and function of these nanovesicles could lead to diagnostic and therapeutic advances in the treatment of cancer. Protein and mRNA composition as well as functions of prostate cancer cell-derived exosomes were analyzed within this work. Exosomes were prepared from prostate cancer cell lines LNCaP, PC-3 and PC3-HSP27 via ultracentrifugation. Validation of exosomal enrichment and characterization of morphology were conducted by means of dynamic light scattering and electron microscopy. Exosomal mRNA and protein composition were analyzed by DNA microarrays and gel electrophoresis as well as mass spectrometry. Effects of tumor-exosomes on non-malignant target cells were studied by means of cell survival assays and cytotxicity assays. Using the SILAC method, the potential uptake of exosomal human proteins into canine cells and de novo synthesis of proteins through transferred exosomal mRNA was analyzed in MDCK cells via mass spectrometry. Analysis of exosomal composition showed that these vesicles are highly enriched in membrane proteins, the packaging of ...']] | ['gnd:36158-6', 'gnd:4047511-6', 'gnd:4136131-3', 'gnd:4186432-3', 'gnd:4201879-1', 'gnd:4206141-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865502579'] | ['Ernst-Moritz-Arndt-Universität Greifswald', 'Prostatakrebs', 'Zellkommunikation', 'Tumorwachstum', 'Exon', 'Vesikel'] | Document
### Title: ['Strukturelle und funktionelle Charakterisierung von Exosomen aus Prostatakarzinomzellen']
### Abstract:
[['Prostatakrebs, Zellkommunikation, Vesikel, Tumorwachstum, Exosomen, prostate, cancer, exosomes, microenvironment, protein uptake', 'Exosomes are small vesicles with a diameter between 50–150nm, which are secreted into the extracellular space. Emerging evidence shows that they may serve as vehicles for signal molecules in order to modulate target cells. As such, exosomes may play a pivotal role in tumor progression by influencing the remodeling of the tumor environment and modulating tumor associated non-malignant cells. A better understanding of composition and function of these nanovesicles could lead to diagnostic and therapeutic advances in the treatment of cancer. Protein and mRNA composition as well as functions of prostate cancer cell-derived exosomes were analyzed within this work. Exosomes were prepared from prostate cancer cell lines LNCaP, PC-3 and PC3-HSP27 via ultracentrifugation. Validation of exosomal enrichment and characterization of morphology were conducted by means of dynamic light scattering and electron microscopy. Exosomal mRNA and protein composition were analyzed by DNA microarrays and gel electrophoresis as well as mass spectrometry. Effects of tumor-exosomes on non-malignant target cells were studied by means of cell survival assays and cytotxicity assays. Using the SILAC method, the potential uptake of exosomal human proteins into canine cells and de novo synthesis of proteins through transferred exosomal mRNA was analyzed in MDCK cells via mass spectrometry. Analysis of exosomal composition showed that these vesicles are highly enriched in membrane proteins, the packaging of ...']]
### GND ID:
['gnd:36158-6', 'gnd:4047511-6', 'gnd:4136131-3', 'gnd:4186432-3', 'gnd:4201879-1', 'gnd:4206141-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865502579']
### GND class:
['Ernst-Moritz-Arndt-Universität Greifswald', 'Prostatakrebs', 'Zellkommunikation', 'Tumorwachstum', 'Exon', 'Vesikel']
<|eot_id|> |
3A865549168.jsonld | ['Electrochemical deposition as a fabrication method for micro thermoelectric generators'] | ['Zusammenfassung: This work presents a comprehensive framework for the fabrication and further optimization of microscale thermoelectric generators, with electrochemical deposition applied as the primary synthesis method for the constituent materials. The pulsed galvanostatic deposition of n-type Bi2Te3 and p-type Sb2Te3 from nitric acid based electrolytes is investigated and optimized with respect to the composition, morphology and thermoelectric properties of the resulting films. The optimized plating protocols can be used for the deposition of near-stoichiometric materials with excellent morphology and a thickness of at least 50 µm for Bi2Te3 and 10 µm for Sb2Te3. For the measurement of the thermoelectric material properties, specialized, non-destructive characterization procedures are developed and evaluated, which allow the determination of the layer properties in the presence of an optimized seed layer'] | ['gnd:1108099203', 'gnd:4184700-3', 'gnd:4185145-6', 'gnd:4205811-9', 'gnd:4316091-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865549168'] | ['Rostek, Raimar', 'Tempern', 'Thermoelektrischer Generator', 'Mikromechanik', 'Galvanische Abscheidung'] | Document
### Title: ['Electrochemical deposition as a fabrication method for micro thermoelectric generators']
### Abstract:
['Zusammenfassung: This work presents a comprehensive framework for the fabrication and further optimization of microscale thermoelectric generators, with electrochemical deposition applied as the primary synthesis method for the constituent materials. The pulsed galvanostatic deposition of n-type Bi2Te3 and p-type Sb2Te3 from nitric acid based electrolytes is investigated and optimized with respect to the composition, morphology and thermoelectric properties of the resulting films. The optimized plating protocols can be used for the deposition of near-stoichiometric materials with excellent morphology and a thickness of at least 50 µm for Bi2Te3 and 10 µm for Sb2Te3. For the measurement of the thermoelectric material properties, specialized, non-destructive characterization procedures are developed and evaluated, which allow the determination of the layer properties in the presence of an optimized seed layer']
### GND ID:
['gnd:1108099203', 'gnd:4184700-3', 'gnd:4185145-6', 'gnd:4205811-9', 'gnd:4316091-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865549168']
### GND class:
['Rostek, Raimar', 'Tempern', 'Thermoelektrischer Generator', 'Mikromechanik', 'Galvanische Abscheidung']
<|eot_id|> |
3A865651302.jsonld | ['The plant cytoskeleton as a transportation network'] | ["The cytoskeleton is an essential component of living cells. It is composed of different types of protein filaments that form complex, dynamically rearranging, and interconnected networks. The cytoskeleton serves a multitude of cellular functions which further depend on the cell context. In animal cells, the cytoskeleton prominently shapes the cell's mechanical properties and movement. In plant cells, in contrast, the presence of a rigid cell wall as well as their larger sizes highlight the role of the cytoskeleton in long-distance intracellular transport. As it provides the basis for cell growth and biomass production, cytoskeletal transport in plant cells is of direct environmental and economical relevance. However, while knowledge about the molecular details of the cytoskeletal transport is growing rapidly, the organizational principles that shape these processes on a whole-cell level remain elusive.This thesis is devoted to the following question: How does the complex architecture of the plant cytoskeleton relate to its transport functionality? The answer requires a systems level perspective of plant cytoskeletal structure and transport. To this end, I combined state-of-the-art confocal microscopy, quantitative digital image analysis, and mathematically powerful, intuitively accessible graph-theoretical approaches. This thesis summarizes five of my publications that shed light on the plant cytoskeleton as a transportation network: (1) I developed network-based frameworks for accurate, automated quantification of cytoskeletal structures, applicable in, e.g., genetic or chemical screens; (2) I showed that the actin cytoskeleton displays properties of efficient transport networks, hinting at its biological design principles; (3) Using multi-objective optimization, I demonstrated that different plant cell types sustain cytoskeletal networks with cell-type specific and near-optimal organization; (4) By investigating actual transport of organelles through the cell, I showed that properties of the actin cytoskeleton are predictive of organelle flow and provided quantitative evidence for a coordination of transport at a cellular level; (5) I devised a robust, optimization-based method to identify individual cytoskeletal filaments from a given network representation, allowing the investigation of single filament properties in the network context. The developed methods were made publicly available as open-source software tools.Altogether, my findings and proposed frameworks provide quantitative, system-level insights into intracellular transport in living cells. Despite my focus on the plant cytoskeleton, the established combination of experimental and theoretical approaches is readily applicable to different organisms. Despite the necessity of detailed molecular studies, only a complementary, systemic perspective, as presented here, enables both understanding of cytoskeletal function in its evolutionary context as well as its future technological control and utilization."] | ['gnd:1020687711', 'gnd:1111575754', 'gnd:2120681-8', 'gnd:4121944-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865651302'] | ['Selbig, Joachim', 'Breuer, David', 'Universität Potsdam', 'Zellskelett'] | Document
### Title: ['The plant cytoskeleton as a transportation network']
### Abstract:
["The cytoskeleton is an essential component of living cells. It is composed of different types of protein filaments that form complex, dynamically rearranging, and interconnected networks. The cytoskeleton serves a multitude of cellular functions which further depend on the cell context. In animal cells, the cytoskeleton prominently shapes the cell's mechanical properties and movement. In plant cells, in contrast, the presence of a rigid cell wall as well as their larger sizes highlight the role of the cytoskeleton in long-distance intracellular transport. As it provides the basis for cell growth and biomass production, cytoskeletal transport in plant cells is of direct environmental and economical relevance. However, while knowledge about the molecular details of the cytoskeletal transport is growing rapidly, the organizational principles that shape these processes on a whole-cell level remain elusive.This thesis is devoted to the following question: How does the complex architecture of the plant cytoskeleton relate to its transport functionality? The answer requires a systems level perspective of plant cytoskeletal structure and transport. To this end, I combined state-of-the-art confocal microscopy, quantitative digital image analysis, and mathematically powerful, intuitively accessible graph-theoretical approaches. This thesis summarizes five of my publications that shed light on the plant cytoskeleton as a transportation network: (1) I developed network-based frameworks for accurate, automated quantification of cytoskeletal structures, applicable in, e.g., genetic or chemical screens; (2) I showed that the actin cytoskeleton displays properties of efficient transport networks, hinting at its biological design principles; (3) Using multi-objective optimization, I demonstrated that different plant cell types sustain cytoskeletal networks with cell-type specific and near-optimal organization; (4) By investigating actual transport of organelles through the cell, I showed that properties of the actin cytoskeleton are predictive of organelle flow and provided quantitative evidence for a coordination of transport at a cellular level; (5) I devised a robust, optimization-based method to identify individual cytoskeletal filaments from a given network representation, allowing the investigation of single filament properties in the network context. The developed methods were made publicly available as open-source software tools.Altogether, my findings and proposed frameworks provide quantitative, system-level insights into intracellular transport in living cells. Despite my focus on the plant cytoskeleton, the established combination of experimental and theoretical approaches is readily applicable to different organisms. Despite the necessity of detailed molecular studies, only a complementary, systemic perspective, as presented here, enables both understanding of cytoskeletal function in its evolutionary context as well as its future technological control and utilization."]
### GND ID:
['gnd:1020687711', 'gnd:1111575754', 'gnd:2120681-8', 'gnd:4121944-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865651302']
### GND class:
['Selbig, Joachim', 'Breuer, David', 'Universität Potsdam', 'Zellskelett']
<|eot_id|> |
3A865811148.jsonld | ['Azimuthal asymmetries in semi-inclusive deep-inelastic hadron muoproduction on longitudinally polarized protons'] | ['Zusammenfassung: In recent years, measuring azimuthal asymmetries in semi-inclusive deep-inelastic scattering (SIDIS) off polarized targets emerged as a powerful tool to investigate the nucleon spin structure, one of the main objectives of the COMPASS physics program. The two-stage COMPASS spectrometer at the CERN SPS is characterized by a large acceptance and a broad kinematic coverage. It makes use of a tertiary longitudinally polarized high-energetic μ+ beam, impinging on a transversely or longitudinally polarized ammonia target.This thesis is dedicated to the analysis of both leading and subleading longitudinal target spin dependent asymmetries arising in the SIDIS cross section of one hadron and hadron pair production. The results provide new insights to the longitudinal spin structure of the nucleon, addressing the role of spin-orbit couplings and quark-gluon correlations in the framework of collinear or transverse momentum dependent factorization'] | ['gnd:1109924186', 'gnd:4136656-6', 'gnd:4155138-2', 'gnd:4170957-3', 'gnd:4360647-7', 'gnd:4723679-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865811148'] | ['Sirtl, Stefan', 'Asymmetrie', 'Fragmentierung', 'Myon-Nukleon-Streuung', 'Myon-Proton-Streuung', 'COMPASS-Detektor'] | Document
### Title: ['Azimuthal asymmetries in semi-inclusive deep-inelastic hadron muoproduction on longitudinally polarized protons']
### Abstract:
['Zusammenfassung: In recent years, measuring azimuthal asymmetries in semi-inclusive deep-inelastic scattering (SIDIS) off polarized targets emerged as a powerful tool to investigate the nucleon spin structure, one of the main objectives of the COMPASS physics program. The two-stage COMPASS spectrometer at the CERN SPS is characterized by a large acceptance and a broad kinematic coverage. It makes use of a tertiary longitudinally polarized high-energetic μ+ beam, impinging on a transversely or longitudinally polarized ammonia target.This thesis is dedicated to the analysis of both leading and subleading longitudinal target spin dependent asymmetries arising in the SIDIS cross section of one hadron and hadron pair production. The results provide new insights to the longitudinal spin structure of the nucleon, addressing the role of spin-orbit couplings and quark-gluon correlations in the framework of collinear or transverse momentum dependent factorization']
### GND ID:
['gnd:1109924186', 'gnd:4136656-6', 'gnd:4155138-2', 'gnd:4170957-3', 'gnd:4360647-7', 'gnd:4723679-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865811148']
### GND class:
['Sirtl, Stefan', 'Asymmetrie', 'Fragmentierung', 'Myon-Nukleon-Streuung', 'Myon-Proton-Streuung', 'COMPASS-Detektor']
<|eot_id|> |
3A865866619.jsonld | ['"Hier aber treten die Ordnungen hervor" : gestaltästhetische Paradigmen in Ernst Jüngers Zukunftsromanen'] | [['This work examines holistic currents and formations in Ernst Jünger \'s narrative work. The focus of the study is on Jünger\'s adaptations of the Gestalt concept. On the basis of analyses of the novels "Heliopolis" (1949) and "Eumeswil" (1977), significant poetological transformations of Gestaltaesthetic paradigms are illuminated and reconstructed in a systematic manner in the context of discourse-historical profiling of the Gestalt concept', 'Einleitung : Gestaltbegriff und "Jahrhundertgestalt" -- Prolog : Herrschaft und Gestalt : Ernst Jünger und die Klassische Moderne -- Heliopolis -- Eumeswil -- Ausblick : Utopia non facit saltus : romanstrategische Operationalisierungen des Gestaltdiskurses -- Literaturverzeichnis']] | ['gnd:110208249X', 'gnd:118558587', 'gnd:2006799-9', 'gnd:4565531-5', 'gnd:4698208-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865866619'] | ['Gestalt (Motiv)', 'Jünger, Ernst 1895-1998', 'Carl-Winter-Universitätsverlag', 'Eumeswil', 'Heliopolis'] | Document
### Title: ['"Hier aber treten die Ordnungen hervor" : gestaltästhetische Paradigmen in Ernst Jüngers Zukunftsromanen']
### Abstract:
[['This work examines holistic currents and formations in Ernst Jünger \'s narrative work. The focus of the study is on Jünger\'s adaptations of the Gestalt concept. On the basis of analyses of the novels "Heliopolis" (1949) and "Eumeswil" (1977), significant poetological transformations of Gestaltaesthetic paradigms are illuminated and reconstructed in a systematic manner in the context of discourse-historical profiling of the Gestalt concept', 'Einleitung : Gestaltbegriff und "Jahrhundertgestalt" -- Prolog : Herrschaft und Gestalt : Ernst Jünger und die Klassische Moderne -- Heliopolis -- Eumeswil -- Ausblick : Utopia non facit saltus : romanstrategische Operationalisierungen des Gestaltdiskurses -- Literaturverzeichnis']]
### GND ID:
['gnd:110208249X', 'gnd:118558587', 'gnd:2006799-9', 'gnd:4565531-5', 'gnd:4698208-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A865866619']
### GND class:
['Gestalt (Motiv)', 'Jünger, Ernst 1895-1998', 'Carl-Winter-Universitätsverlag', 'Eumeswil', 'Heliopolis']
<|eot_id|> |
3A866223118.jsonld | ['Modellierung der Innenballistik von durch Gas-Luft-Gemische angetriebenen Projektilen'] | [['Stumpfes Trauma, Innenballistik, Kanone, Gasdruck, Gascombustiongun, Blunt ballistic impact, Blunt trauma, Internal ballistics', 'Potato guns are popular homemade guns which work on the principle of gas combustion. They are usually constructed for recreational rather than criminal purposes. Yet some serious injuries and fatalities due to these guns are re- ported. As information on the internal ballistics of homemade gas combustion-powered guns is scarce, it is the aim of this work to provide an experimental model of the internal ballistics of these devices and to investigate their basic physical param- eters. A gas combustion gun was constructed with a steel tube as the main component. Gas/air mixtures of acetylene, hydro- gen, and ethylene were used as propellants for discharging a 46-mm caliber test projectile. Gas pressure in the combustion chamber was captured with a piezoelectric pressure sensor. Projectile velocity was measured with a ballistic speed mea- surement system. The maximum gas pressure, the maximum rate of pressure rise, the time parameters of the pressure curve, and the velocity and path of the projectile through the barrel as a function of time were determined according to the pressure- time curve. The maximum gas pressure was measured to be between 1.4 bar (ethylene) and 4.5 bar (acetylene). The highest maximum rate of pressure rise was determined for hydrogen at (dp/dt)max=607 bar/s. The muzzle energy was calculated to be between 67 J (ethylene) and 204 J (acetylene). To conclude, this work provides basic information on the internal ballistics of homemade gas combustion guns. The ...']] | ['gnd:36158-6', 'gnd:4161797-6', 'gnd:4260617-2', 'gnd:4281440-6', 'gnd:4311688-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866223118'] | ['Ernst-Moritz-Arndt-Universität Greifswald', 'Innere Ballistik', 'Gasdruck', 'Stumpfe Verletzung', 'Kanone'] | Document
### Title: ['Modellierung der Innenballistik von durch Gas-Luft-Gemische angetriebenen Projektilen']
### Abstract:
[['Stumpfes Trauma, Innenballistik, Kanone, Gasdruck, Gascombustiongun, Blunt ballistic impact, Blunt trauma, Internal ballistics', 'Potato guns are popular homemade guns which work on the principle of gas combustion. They are usually constructed for recreational rather than criminal purposes. Yet some serious injuries and fatalities due to these guns are re- ported. As information on the internal ballistics of homemade gas combustion-powered guns is scarce, it is the aim of this work to provide an experimental model of the internal ballistics of these devices and to investigate their basic physical param- eters. A gas combustion gun was constructed with a steel tube as the main component. Gas/air mixtures of acetylene, hydro- gen, and ethylene were used as propellants for discharging a 46-mm caliber test projectile. Gas pressure in the combustion chamber was captured with a piezoelectric pressure sensor. Projectile velocity was measured with a ballistic speed mea- surement system. The maximum gas pressure, the maximum rate of pressure rise, the time parameters of the pressure curve, and the velocity and path of the projectile through the barrel as a function of time were determined according to the pressure- time curve. The maximum gas pressure was measured to be between 1.4 bar (ethylene) and 4.5 bar (acetylene). The highest maximum rate of pressure rise was determined for hydrogen at (dp/dt)max=607 bar/s. The muzzle energy was calculated to be between 67 J (ethylene) and 204 J (acetylene). To conclude, this work provides basic information on the internal ballistics of homemade gas combustion guns. The ...']]
### GND ID:
['gnd:36158-6', 'gnd:4161797-6', 'gnd:4260617-2', 'gnd:4281440-6', 'gnd:4311688-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866223118']
### GND class:
['Ernst-Moritz-Arndt-Universität Greifswald', 'Innere Ballistik', 'Gasdruck', 'Stumpfe Verletzung', 'Kanone']
<|eot_id|> |
3A866244611.jsonld | ['Postirony : the nonfictional literature of David Foster Wallace and Dave Eggers'] | ["What is 'postirony'? Foremost, it is a response to the ironic zeitgeist. Moreover, it is the key to understanding a specific form of literature. The contemporary reader is familiar with and - unfortunately - used to postmodernism's ironic, self-reflexive metafiction. Authors like David Foster Wallace and Dave Eggers chose a different path: Despite the reign of contemporary irony, they strive to reach the reader on a level beyond, cognitively as well as emotionally - they claim to be sincere and true. Focusing largely on nonfiction by said authors, Lukas Hoffmann explores the means the texts use to achieve something new - namely, a new form of sincerity."] | ['gnd:1115260170', 'gnd:122865251', 'gnd:133249980', 'gnd:4027676-4', 'gnd:4115604-3', 'gnd:4221390-3', 'gnd:4283981-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866244611'] | ['Hoffmann, Lukas', 'Wallace, David Foster 1962-2008', 'Eggers, Dave 1970', 'Ironie', 'Postmoderne', 'Nichtfiktionale Prosa', 'Ehrlichkeit (Motiv)'] | Document
### Title: ['Postirony : the nonfictional literature of David Foster Wallace and Dave Eggers']
### Abstract:
["What is 'postirony'? Foremost, it is a response to the ironic zeitgeist. Moreover, it is the key to understanding a specific form of literature. The contemporary reader is familiar with and - unfortunately - used to postmodernism's ironic, self-reflexive metafiction. Authors like David Foster Wallace and Dave Eggers chose a different path: Despite the reign of contemporary irony, they strive to reach the reader on a level beyond, cognitively as well as emotionally - they claim to be sincere and true. Focusing largely on nonfiction by said authors, Lukas Hoffmann explores the means the texts use to achieve something new - namely, a new form of sincerity."]
### GND ID:
['gnd:1115260170', 'gnd:122865251', 'gnd:133249980', 'gnd:4027676-4', 'gnd:4115604-3', 'gnd:4221390-3', 'gnd:4283981-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866244611']
### GND class:
['Hoffmann, Lukas', 'Wallace, David Foster 1962-2008', 'Eggers, Dave 1970', 'Ironie', 'Postmoderne', 'Nichtfiktionale Prosa', 'Ehrlichkeit (Motiv)']
<|eot_id|> |
3A866286780.jsonld | ['Konformation und Dynamik : rotationsspektroskopische Charakterisierung von Beweglichkeit und Bewegung'] | ['Mikrowellenspektroskopie, Strukturanalyse, großamplitudige Bewegung. - Microwave spectroscopy, analysis of structure, large amplitude motion'] | ['gnd:113413572', 'gnd:131454617', 'gnd:4164967-9', 'gnd:4169895-2', 'gnd:4178507-1', 'gnd:4386556-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866286780'] | ['Grabow, Jens-Uwe', 'Renz, Franz', 'Konformationsanalyse', 'Mikrowellenspektroskopie', 'Rotationsspektrum', 'Piperidonderivate', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Konformation und Dynamik : rotationsspektroskopische Charakterisierung von Beweglichkeit und Bewegung']
### Abstract:
['Mikrowellenspektroskopie, Strukturanalyse, großamplitudige Bewegung. - Microwave spectroscopy, analysis of structure, large amplitude motion']
### GND ID:
['gnd:113413572', 'gnd:131454617', 'gnd:4164967-9', 'gnd:4169895-2', 'gnd:4178507-1', 'gnd:4386556-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866286780']
### GND class:
['Grabow, Jens-Uwe', 'Renz, Franz', 'Konformationsanalyse', 'Mikrowellenspektroskopie', 'Rotationsspektrum', 'Piperidonderivate', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A866449604.jsonld | ['Entropy and approximation numbers of weighted Sobolev embeddings : a bracking technique'] | ['We analyse the asymptotic behaviour of the entropy and approximation numbers of compact embeddings in limiting situations between weighted Sobolev spaces and Lebesgue spaces defined on the unit ball. The involved power weights are perturbed by slowly varying functions and have a singularity at the origin. The main results are based on a bracketing technique which extents the well-known Dirichlet-Neumann bracketing from spectral theory in Hilbert spaces to the general case of Banach spaces.'] | ['gnd:1110772785', 'gnd:36164-1', 'gnd:4134834-5', 'gnd:4151233-9', 'gnd:4190746-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866449604'] | ['Mieth, Therese', 'Friedrich-Schiller-Universität Jena', 'Funktionenraum', 'Einbettung (Mathematik)', 'Zerlegung (Mathematik)'] | Document
### Title: ['Entropy and approximation numbers of weighted Sobolev embeddings : a bracking technique']
### Abstract:
['We analyse the asymptotic behaviour of the entropy and approximation numbers of compact embeddings in limiting situations between weighted Sobolev spaces and Lebesgue spaces defined on the unit ball. The involved power weights are perturbed by slowly varying functions and have a singularity at the origin. The main results are based on a bracketing technique which extents the well-known Dirichlet-Neumann bracketing from spectral theory in Hilbert spaces to the general case of Banach spaces.']
### GND ID:
['gnd:1110772785', 'gnd:36164-1', 'gnd:4134834-5', 'gnd:4151233-9', 'gnd:4190746-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866449604']
### GND class:
['Mieth, Therese', 'Friedrich-Schiller-Universität Jena', 'Funktionenraum', 'Einbettung (Mathematik)', 'Zerlegung (Mathematik)']
<|eot_id|> |
3A866555994.jsonld | ['On the dynamics of marcus type stochastic differential equations'] | ['In this work metric dynamical systems (MDS) driven by Lévy processes in positive and negative time are constructed. Ergodicity and invariance for such classes of MDS are shown. Further a perfection theorem for càdlàg processes and the conjugacy of solution of Marcus type SDEs driven by Lévy processes and solutions of certain RDEs is proven. This result is applied to verify locally conjugacy of solutions of Marcus type SDEs and solutions of linearised Marcus type SDEs (referring to the results of Hartman–Grobman for deterministic ODEs). Subsequently, stable and unstable manifolds are constructed using the Lyapunov–Perron method. Furthermore, the Lyapunov–Perron method is modified to prove a foliation of the stable manifold. Conclusively, Marcus type stochastic differential delay equations (MSDDEs) are considered. Conditions for existence and uniqueness of solutions are deduced, which implies the semiflow property for solutions of MSDDEs'] | ['gnd:1109924496', 'gnd:36164-1', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866555994'] | ['Kümmel, Kai', 'Friedrich-Schiller-Universität Jena', 'Lévy-Prozess'] | Document
### Title: ['On the dynamics of marcus type stochastic differential equations']
### Abstract:
['In this work metric dynamical systems (MDS) driven by Lévy processes in positive and negative time are constructed. Ergodicity and invariance for such classes of MDS are shown. Further a perfection theorem for càdlàg processes and the conjugacy of solution of Marcus type SDEs driven by Lévy processes and solutions of certain RDEs is proven. This result is applied to verify locally conjugacy of solutions of Marcus type SDEs and solutions of linearised Marcus type SDEs (referring to the results of Hartman–Grobman for deterministic ODEs). Subsequently, stable and unstable manifolds are constructed using the Lyapunov–Perron method. Furthermore, the Lyapunov–Perron method is modified to prove a foliation of the stable manifold. Conclusively, Marcus type stochastic differential delay equations (MSDDEs) are considered. Conditions for existence and uniqueness of solutions are deduced, which implies the semiflow property for solutions of MSDDEs']
### GND ID:
['gnd:1109924496', 'gnd:36164-1', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866555994']
### GND class:
['Kümmel, Kai', 'Friedrich-Schiller-Universität Jena', 'Lévy-Prozess']
<|eot_id|> |
3A866670963.jsonld | ['Experimental studies on polarization correlations in hard x-ray Rayleigh scattering'] | ['This thesis investigates experimentally the elastic scattering of hard x-rays. Combining the novel technologies of a third-generation synchrotron radiation source and a Si(Li) strip detector which acts as a highly efficient x-ray Compton polarimeter allows to measure the linear polarization of the elastically scattered photons for a highly linearly polarized incident beam. Here, such a polarization transfer is considered for the first time in the hard x-ray regime. With a photon energy of 175 keV and gold as scatterer, a highly relativistic regime is chosen where Rayleigh scattering is the only significant elastic scattering contribution. In addition to the polarization of the elastically scattered photons, also the angular distribution is measured. The data are compared to fully relativistic second-order QED calculations. Both observables are well described by these predictions whereas the form factor approximation fails. The simultaneous measurement of angular distribution and polarization allows to identify spurious agreement of the form factor theory in only one observable. At scattering angles around 90°, the assumption that the incident beam is completely linearly polarized is not sufficient to explain the data. The measured linear polarization of the Compton-scattered photons is used to obtain an independent estimate for the incident beam polarization of about 98 % which leads to an agreement between experiment and theory at all measured data points. The significant change introduced by this depolarization of 2 % indicates a strong sensitivity on the polarization of the incident beam. In the present experiment, this sensitivity limits the precision, but on the other hand, it allows a precise reconstruction of the incident beam polarization when the theory is established. Here, such a reconstruction is performed and the result agrees with the 98 % from the Compton polarization, but with a slightly lower uncertainty and with less statistics.'] | ['gnd:1111110425', 'gnd:36164-1', 'gnd:4177106-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866670963'] | ['Blumenhagen, Karl-Heinz', 'Friedrich-Schiller-Universität Jena', 'Rayleigh-Streuung'] | Document
### Title: ['Experimental studies on polarization correlations in hard x-ray Rayleigh scattering']
### Abstract:
['This thesis investigates experimentally the elastic scattering of hard x-rays. Combining the novel technologies of a third-generation synchrotron radiation source and a Si(Li) strip detector which acts as a highly efficient x-ray Compton polarimeter allows to measure the linear polarization of the elastically scattered photons for a highly linearly polarized incident beam. Here, such a polarization transfer is considered for the first time in the hard x-ray regime. With a photon energy of 175 keV and gold as scatterer, a highly relativistic regime is chosen where Rayleigh scattering is the only significant elastic scattering contribution. In addition to the polarization of the elastically scattered photons, also the angular distribution is measured. The data are compared to fully relativistic second-order QED calculations. Both observables are well described by these predictions whereas the form factor approximation fails. The simultaneous measurement of angular distribution and polarization allows to identify spurious agreement of the form factor theory in only one observable. At scattering angles around 90°, the assumption that the incident beam is completely linearly polarized is not sufficient to explain the data. The measured linear polarization of the Compton-scattered photons is used to obtain an independent estimate for the incident beam polarization of about 98 % which leads to an agreement between experiment and theory at all measured data points. The significant change introduced by this depolarization of 2 % indicates a strong sensitivity on the polarization of the incident beam. In the present experiment, this sensitivity limits the precision, but on the other hand, it allows a precise reconstruction of the incident beam polarization when the theory is established. Here, such a reconstruction is performed and the result agrees with the 98 % from the Compton polarization, but with a slightly lower uncertainty and with less statistics.']
### GND ID:
['gnd:1111110425', 'gnd:36164-1', 'gnd:4177106-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866670963']
### GND class:
['Blumenhagen, Karl-Heinz', 'Friedrich-Schiller-Universität Jena', 'Rayleigh-Streuung']
<|eot_id|> |
3A866684484.jsonld | ['Young star V1331 Cygni takes centre stage'] | ['With first epoch observations of HST-WFPC2 already available for V1331 Cyg from year 2000, second epoch data was observed in 2009. I study the time evolution of circumstellar nebula by analysing and comparing the two epochs of HST observations. Radial colour analysis of outer dust arc is done as well to check whether the radial grain size distribution was modified by a previous FUor wind. HST images are cleaned using IRAF and PSF subtraction is done using model PSF generated from Tiny Tim software. IDL scripts and routines are used to do proper motion analysis. The outer dust arc is found to be expanding at ≈ 14.8± 3.6 km s−1 on average. The expansion velocity of inner ring is less consistent, between 0.8 km s−1 and 3.4 km s−1. Radial colour profiles do not hint on particle separation. The results support the view that V1331 Cyg underwent an FU Orionis outburst a few thousand years ago. Additional data from other instruments - TLS, UKIDSS, SPITZER, HERSCHEL, SUBARU, PdBI and SMA is also incorporated. I use it to improve the understanding of the young star in terms of environment, viewing angle, bipolar outflow length and missing ring section. The gap between the outer and inner dust arcs is found to be real. HST planetary camera image reveals a knot like feature at 220 au from the central source. Subaru image shows scattered light in the same direction as that of the knot. Preliminary results from the latest PdBI continuum map also hint on the knot being a real feature. It is evident from the knot photometry that it is not a binary stellar companion. The starlight scattered from the dust is seen in HST images. Missing ring section could be a result of shadowing due to presence of the knot. By viewing V1331 Cyg almost pole-on, the length of the bipolar outflow is updated to be 10 parsec or even more.'] | ['gnd:1110199260', 'gnd:36164-1', 'gnd:4302708-8', 'gnd:4348852-3', 'gnd:4384866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866684484'] | ['Choudhary, Arpita', 'Friedrich-Schiller-Universität Jena', 'Thüringer Landessternwarte', 'Junger Stern', 'Kosmischer Staub'] | Document
### Title: ['Young star V1331 Cygni takes centre stage']
### Abstract:
['With first epoch observations of HST-WFPC2 already available for V1331 Cyg from year 2000, second epoch data was observed in 2009. I study the time evolution of circumstellar nebula by analysing and comparing the two epochs of HST observations. Radial colour analysis of outer dust arc is done as well to check whether the radial grain size distribution was modified by a previous FUor wind. HST images are cleaned using IRAF and PSF subtraction is done using model PSF generated from Tiny Tim software. IDL scripts and routines are used to do proper motion analysis. The outer dust arc is found to be expanding at ≈ 14.8± 3.6 km s−1 on average. The expansion velocity of inner ring is less consistent, between 0.8 km s−1 and 3.4 km s−1. Radial colour profiles do not hint on particle separation. The results support the view that V1331 Cyg underwent an FU Orionis outburst a few thousand years ago. Additional data from other instruments - TLS, UKIDSS, SPITZER, HERSCHEL, SUBARU, PdBI and SMA is also incorporated. I use it to improve the understanding of the young star in terms of environment, viewing angle, bipolar outflow length and missing ring section. The gap between the outer and inner dust arcs is found to be real. HST planetary camera image reveals a knot like feature at 220 au from the central source. Subaru image shows scattered light in the same direction as that of the knot. Preliminary results from the latest PdBI continuum map also hint on the knot being a real feature. It is evident from the knot photometry that it is not a binary stellar companion. The starlight scattered from the dust is seen in HST images. Missing ring section could be a result of shadowing due to presence of the knot. By viewing V1331 Cyg almost pole-on, the length of the bipolar outflow is updated to be 10 parsec or even more.']
### GND ID:
['gnd:1110199260', 'gnd:36164-1', 'gnd:4302708-8', 'gnd:4348852-3', 'gnd:4384866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866684484']
### GND class:
['Choudhary, Arpita', 'Friedrich-Schiller-Universität Jena', 'Thüringer Landessternwarte', 'Junger Stern', 'Kosmischer Staub']
<|eot_id|> |
3A866980733.jsonld | ['Lines on K3 quartic surfaces'] | ['K3 surface, quartic surface, line, rational double point, positive characteristic, elliptic fibration, quasi-elliptic fibration. - K3-Fläche, Quartikfläche, Gerade, rationaler Doppelpunkt, positive Charakteristik, elliptische Faserung, quasi-elliptische Faserung'] | ['gnd:1257461761', 'gnd:4162958-9', 'gnd:4291376-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866980733'] | ['Veniani, Davide Cesare', 'K 3- Fläche', 'Quadrik', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Lines on K3 quartic surfaces']
### Abstract:
['K3 surface, quartic surface, line, rational double point, positive characteristic, elliptic fibration, quasi-elliptic fibration. - K3-Fläche, Quartikfläche, Gerade, rationaler Doppelpunkt, positive Charakteristik, elliptische Faserung, quasi-elliptische Faserung']
### GND ID:
['gnd:1257461761', 'gnd:4162958-9', 'gnd:4291376-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A866980733']
### GND class:
['Veniani, Davide Cesare', 'K 3- Fläche', 'Quadrik', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A867030348.jsonld | ['Coupled nonclassical systems for coherent backaction noise cancellation'] | ['Quantum radiation pressure noise, coherent control, quantum control, nonclassical light, optomechanical cavities, coupled optical cavities. - Quantenstrahlungsdruckrauschen, kohärente Rauschunterdrückung, Quantenkontrolle, nichtklassisches Licht, optomechanische Resonatoren, gekoppelte optische Resonatoren'] | ['gnd:1017434107', 'gnd:1024815579', 'gnd:130300675', 'gnd:4131574-1', 'gnd:4177102-3', 'gnd:4183528-1', 'gnd:4225847-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867030348'] | ['Willke, Benno', 'Optomechanik', 'Heurs, Michèle', 'Resonator', 'Rauschunterdrückung', 'Strahlungsdruck', 'Quantenrauschen', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Coupled nonclassical systems for coherent backaction noise cancellation']
### Abstract:
['Quantum radiation pressure noise, coherent control, quantum control, nonclassical light, optomechanical cavities, coupled optical cavities. - Quantenstrahlungsdruckrauschen, kohärente Rauschunterdrückung, Quantenkontrolle, nichtklassisches Licht, optomechanische Resonatoren, gekoppelte optische Resonatoren']
### GND ID:
['gnd:1017434107', 'gnd:1024815579', 'gnd:130300675', 'gnd:4131574-1', 'gnd:4177102-3', 'gnd:4183528-1', 'gnd:4225847-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867030348']
### GND class:
['Willke, Benno', 'Optomechanik', 'Heurs, Michèle', 'Resonator', 'Rauschunterdrückung', 'Strahlungsdruck', 'Quantenrauschen', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A867072172.jsonld | ['Plant and soil related effects on the soil microbial community composition and soil microbial carbon dynamics'] | ['Soil microorganisms are key mediators of soil carbon (C) cycling; however several plant and soil related factors potentially influence the functions of soil microbial communities. In that sense, this thesis describes 3 studies which provide new knowledge of factors that influence processes mediated by soil microorganisms. This thesis focused in understanding 1) the mechanisms behind the plant diversity effect on the C transfer from above to belowground; 2) the influence of plant diversity on different soil microbial groups, soil bacterial diversity and phospholipid fatty acid (PLFA) markers evenness; and 3) the relative importance of the combined effects of soil type, seasonal changes and vegetation type. The results demonstrated that plant diversity impacted soil microbial communities directly and indirectly. Root-associated microorganisms were favored directly by plant diversity via increased root biomass, which facilitated access of recently photosynthesized C for this microbial group. In contrast, soil-related microorganisms were favored indirectly by plant diversity. Likely, increased C resource input contributed to the development of soil-related microbial biomass in high plant diversity. Moreover, soil bacterial diversity increased with increasing plant diversity, whilst PLFA evenness decreased. Interestingly, at the highest plant diversity level, PLFAs indicative of root-associated microorganisms predominated; this indicated that plant diversity favors the cycling of recently photosynthesized C. In addition, changing root biomass in different soil types was an important mediator of C resource availability belowground. Whereas, differences in the type of C substrate, from fresh C rhizodeposits to plant litter, related to seasonal changes, were relevant for shaping the microbial community composition. Overall, this thesis contributes to strengthen the knowledge on the role of microbial communities in the C cycling belowground.'] | ['gnd:1110201419', 'gnd:36164-1', 'gnd:4007348-8', 'gnd:4039226-0', 'gnd:4164552-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867072172'] | ['Mellado Vázquez, Perla Griselle', 'Friedrich-Schiller-Universität Jena', 'Boden', 'Mikroorganismus', 'Kohlenstoffkreislauf'] | Document
### Title: ['Plant and soil related effects on the soil microbial community composition and soil microbial carbon dynamics']
### Abstract:
['Soil microorganisms are key mediators of soil carbon (C) cycling; however several plant and soil related factors potentially influence the functions of soil microbial communities. In that sense, this thesis describes 3 studies which provide new knowledge of factors that influence processes mediated by soil microorganisms. This thesis focused in understanding 1) the mechanisms behind the plant diversity effect on the C transfer from above to belowground; 2) the influence of plant diversity on different soil microbial groups, soil bacterial diversity and phospholipid fatty acid (PLFA) markers evenness; and 3) the relative importance of the combined effects of soil type, seasonal changes and vegetation type. The results demonstrated that plant diversity impacted soil microbial communities directly and indirectly. Root-associated microorganisms were favored directly by plant diversity via increased root biomass, which facilitated access of recently photosynthesized C for this microbial group. In contrast, soil-related microorganisms were favored indirectly by plant diversity. Likely, increased C resource input contributed to the development of soil-related microbial biomass in high plant diversity. Moreover, soil bacterial diversity increased with increasing plant diversity, whilst PLFA evenness decreased. Interestingly, at the highest plant diversity level, PLFAs indicative of root-associated microorganisms predominated; this indicated that plant diversity favors the cycling of recently photosynthesized C. In addition, changing root biomass in different soil types was an important mediator of C resource availability belowground. Whereas, differences in the type of C substrate, from fresh C rhizodeposits to plant litter, related to seasonal changes, were relevant for shaping the microbial community composition. Overall, this thesis contributes to strengthen the knowledge on the role of microbial communities in the C cycling belowground.']
### GND ID:
['gnd:1110201419', 'gnd:36164-1', 'gnd:4007348-8', 'gnd:4039226-0', 'gnd:4164552-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867072172']
### GND class:
['Mellado Vázquez, Perla Griselle', 'Friedrich-Schiller-Universität Jena', 'Boden', 'Mikroorganismus', 'Kohlenstoffkreislauf']
<|eot_id|> |
3A867618019.jsonld | ["Motherhood and self-realization in the four waves of American feminism and Joyce Carol Oates's recent fiction"] | ['"The author examines motherhood and female self-realization in feminist discourse and Joyce Carol Oates\'s recent fiction. While the first and second wave of feminism repudiated motherhood, the third wave claimed the right to enjoy it. The present fourth wave is now reviving the reservations about motherhood of the first two waves. This book demonstrates how Oates\'s writing reflects these shifts and how Oates takes up and transforms feminist standpoints in her work without writing conventional feminist literature. Literary criticism has only marginally dealt with Oates\'s mother figures. Drawing on Gender Studies and, in particular, on the transnational relation between French and American feminism, this book fills this gap."--'] | ['gnd:1042242879', 'gnd:1109929900', 'gnd:118589121', 'gnd:4050479-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867618019'] | ['Feministische Literaturwissenschaft', 'Hillenbrand, Julia', 'Oates, Joyce Carol 1938', 'Roman'] | Document
### Title: ["Motherhood and self-realization in the four waves of American feminism and Joyce Carol Oates's recent fiction"]
### Abstract:
['"The author examines motherhood and female self-realization in feminist discourse and Joyce Carol Oates\'s recent fiction. While the first and second wave of feminism repudiated motherhood, the third wave claimed the right to enjoy it. The present fourth wave is now reviving the reservations about motherhood of the first two waves. This book demonstrates how Oates\'s writing reflects these shifts and how Oates takes up and transforms feminist standpoints in her work without writing conventional feminist literature. Literary criticism has only marginally dealt with Oates\'s mother figures. Drawing on Gender Studies and, in particular, on the transnational relation between French and American feminism, this book fills this gap."--']
### GND ID:
['gnd:1042242879', 'gnd:1109929900', 'gnd:118589121', 'gnd:4050479-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867618019']
### GND class:
['Feministische Literaturwissenschaft', 'Hillenbrand, Julia', 'Oates, Joyce Carol 1938', 'Roman']
<|eot_id|> |
3A867900164.jsonld | ['Formation and segregation of melts during deformation : an approach with analogue material'] | ['Zusammenfassung: Field evidence from natural partial molten systems like migmatites indicate a close relationship between melt segregation and deformation. To study this phenomena we conducted experiments with rock analogues consisting of mixtures of LiNO3 and KNO3 as a melting component and crushed baryte featuring as a non-melting framework. Four sets of experiments with strain rates from 1x10E-5 s-1 to 5x10E-4 s-1 at melt contents between 4.4 , 8.8 , 17.7 and 26.6 have been conducted. Hot isostatically pressed cylindrical samples of 35 mm diameter and approximately 60 mm height have been sintered and uni-axially deformed at 133.5°C to axial strains of 30-50 with instantaneous record of strength. With this setup we enable an efficient voluminous melt segregation in three dimensions.The chosen material is scaled to simulate the melt movement of granitic melts with a viscosity of 3.6x10E+7 Pa s and strain rates of 1.1x10E-10 s-1 in a framework with grain sizes and melt fractions similar to those in nature. Measured strengths are 10E-3 the natural constraint strength of partially molten rocks. Longest experiment duration scale to 100 years in nature.Bulk strength decreases with low strain rate and high melt content without a rapid decrease at critical melt contents asinferred from literature (Arzi, 1978). At higher melt fractions samples started to harden which was interpreted as the effect of segregation which in turn lead to hardening of the melt depleted areas.Polished sections and statistical analysis of the spatial melt distribution and melt area proportion added to the understanding of segregational features. Efficient melt segregation is initiated at melt fraction higher than 4.3, where below this limit melt sticks in interstitial pore and can not accumulate. Lower strain rates and the development of favorable structures such as shear zone further increase the efficiency of melt segregation'] | ['gnd:1113113731', 'gnd:4049828-1', 'gnd:4070262-5', 'gnd:4144082-1', 'gnd:4152371-4', 'gnd:4180697-9', 'gnd:4409345-7', 'gnd:4615591-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867900164'] | ['Lang, Marcus', 'Rheologie', 'Deformation', 'Baryt', 'Entmischung', 'Segregation (Technik)', 'Deformation (Geologie)', 'Partielle Schmelze'] | Document
### Title: ['Formation and segregation of melts during deformation : an approach with analogue material']
### Abstract:
['Zusammenfassung: Field evidence from natural partial molten systems like migmatites indicate a close relationship between melt segregation and deformation. To study this phenomena we conducted experiments with rock analogues consisting of mixtures of LiNO3 and KNO3 as a melting component and crushed baryte featuring as a non-melting framework. Four sets of experiments with strain rates from 1x10E-5 s-1 to 5x10E-4 s-1 at melt contents between 4.4 , 8.8 , 17.7 and 26.6 have been conducted. Hot isostatically pressed cylindrical samples of 35 mm diameter and approximately 60 mm height have been sintered and uni-axially deformed at 133.5°C to axial strains of 30-50 with instantaneous record of strength. With this setup we enable an efficient voluminous melt segregation in three dimensions.The chosen material is scaled to simulate the melt movement of granitic melts with a viscosity of 3.6x10E+7 Pa s and strain rates of 1.1x10E-10 s-1 in a framework with grain sizes and melt fractions similar to those in nature. Measured strengths are 10E-3 the natural constraint strength of partially molten rocks. Longest experiment duration scale to 100 years in nature.Bulk strength decreases with low strain rate and high melt content without a rapid decrease at critical melt contents asinferred from literature (Arzi, 1978). At higher melt fractions samples started to harden which was interpreted as the effect of segregation which in turn lead to hardening of the melt depleted areas.Polished sections and statistical analysis of the spatial melt distribution and melt area proportion added to the understanding of segregational features. Efficient melt segregation is initiated at melt fraction higher than 4.3, where below this limit melt sticks in interstitial pore and can not accumulate. Lower strain rates and the development of favorable structures such as shear zone further increase the efficiency of melt segregation']
### GND ID:
['gnd:1113113731', 'gnd:4049828-1', 'gnd:4070262-5', 'gnd:4144082-1', 'gnd:4152371-4', 'gnd:4180697-9', 'gnd:4409345-7', 'gnd:4615591-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867900164']
### GND class:
['Lang, Marcus', 'Rheologie', 'Deformation', 'Baryt', 'Entmischung', 'Segregation (Technik)', 'Deformation (Geologie)', 'Partielle Schmelze']
<|eot_id|> |
3A867934883.jsonld | ['Self-assembled nanotubes and nanoribbons of aromatic diamide-esters'] | ['Zusammenfassung: Supramolecular nanostructures provide excellent opportunities to enhance our understanding of the basic mechanism of self-organization and hence to deal with the fundamental issues of nanoscale construction e.g. desired morphology and well defined size. The ability to manipulate the ordered structures at molecular scale, affected by competing intermolecular or molecule-environment interactions, provide further insight for a more fundamental understanding of ordering and growth phenomena. In particular, self-assembly of organic molecules into highly ordered nanostructures is of significant interest due to their potential applications as functional soft materials.In this context, we investigated the ordering and growth phenomena of achiral aromatic diamide molecules, which involve three distinct strongly interacting groups (SIGs) (one aromatic-ester ring and two amide groups per molecule). We demonstrated that solutions of 3,5-bis-(5-hexylcarbamoylpentyloxy)-benzoic acid decyl ester (BHPB-10), can form metastable nanostructures on solid substrates and in bulk'] | ['gnd:1113667885', 'gnd:4342626-8', 'gnd:4384153-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867934883'] | ['Jamal, Asad', 'Nanostrukturiertes Material', 'Diamide'] | Document
### Title: ['Self-assembled nanotubes and nanoribbons of aromatic diamide-esters']
### Abstract:
['Zusammenfassung: Supramolecular nanostructures provide excellent opportunities to enhance our understanding of the basic mechanism of self-organization and hence to deal with the fundamental issues of nanoscale construction e.g. desired morphology and well defined size. The ability to manipulate the ordered structures at molecular scale, affected by competing intermolecular or molecule-environment interactions, provide further insight for a more fundamental understanding of ordering and growth phenomena. In particular, self-assembly of organic molecules into highly ordered nanostructures is of significant interest due to their potential applications as functional soft materials.In this context, we investigated the ordering and growth phenomena of achiral aromatic diamide molecules, which involve three distinct strongly interacting groups (SIGs) (one aromatic-ester ring and two amide groups per molecule). We demonstrated that solutions of 3,5-bis-(5-hexylcarbamoylpentyloxy)-benzoic acid decyl ester (BHPB-10), can form metastable nanostructures on solid substrates and in bulk']
### GND ID:
['gnd:1113667885', 'gnd:4342626-8', 'gnd:4384153-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867934883']
### GND class:
['Jamal, Asad', 'Nanostrukturiertes Material', 'Diamide']
<|eot_id|> |
3A867944560.jsonld | ['Few-cycle microscopy of a laser wakefield accelerator'] | ['This thesis describes the development and first application of a novel diagnostic for a laser driven wakefield accelerator. It is termed Few‐Cycle Microscopy (FCM) and consists of a high-resolution imaging system and probe pulses with a duration of a few optical cycles synchronized to a high intensity laser pulse. Using FCM has opened a pristine view into the laser‐plasma interaction and has allowed to record high‐resolution images of the plasma wave in real time. Important stages during the wave’s evolution such as its formation, its breaking and finally the acceleration of electrons in the associated wake fields were observed in the experiment as well as in simulations, allowing for the first time a quantitative comparison between analytical and numerical models and experimental results. Using this diagnostic, the expansion of the wave’s first period, the so‐called ‘bubble’, was identified to be crucial for the injection of electrons into the wave. Furthermore, the shadowgrams taken with FCM in combination with interferograms and backscatter spectra have revealed a new acceleration regime when using hydrogen as the target gas. It was found that in this scheme electron pulses are generated with a higher charge, lower divergence and better pointing stability than with helium gas. The underlying pre‐heating process could be attributed to stimulated Raman scattering, which has been thought up till now to be negligible for short (t < 30 fs) laser pulses. However, as it is shown in this thesis, the interplay of the temporal intensity contrast of the laser pulse 1 ps before the peak of the pulse together with a sufficiently high plasma electron density can provide suitable conditions for this instability to grow, resulting in improved electron pulse parameters.'] | ['gnd:1113884371', 'gnd:1128828189', 'gnd:36164-1', 'gnd:4174841-4', 'gnd:4222149-3', 'gnd:4286364-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867944560'] | ['Sävert, Alexander', 'Kielfeld-Beschleuniger', 'Friedrich-Schiller-Universität Jena', 'Plasmawelle', 'Ultrakurzer Lichtimpuls', 'Plasmakanone'] | Document
### Title: ['Few-cycle microscopy of a laser wakefield accelerator']
### Abstract:
['This thesis describes the development and first application of a novel diagnostic for a laser driven wakefield accelerator. It is termed Few‐Cycle Microscopy (FCM) and consists of a high-resolution imaging system and probe pulses with a duration of a few optical cycles synchronized to a high intensity laser pulse. Using FCM has opened a pristine view into the laser‐plasma interaction and has allowed to record high‐resolution images of the plasma wave in real time. Important stages during the wave’s evolution such as its formation, its breaking and finally the acceleration of electrons in the associated wake fields were observed in the experiment as well as in simulations, allowing for the first time a quantitative comparison between analytical and numerical models and experimental results. Using this diagnostic, the expansion of the wave’s first period, the so‐called ‘bubble’, was identified to be crucial for the injection of electrons into the wave. Furthermore, the shadowgrams taken with FCM in combination with interferograms and backscatter spectra have revealed a new acceleration regime when using hydrogen as the target gas. It was found that in this scheme electron pulses are generated with a higher charge, lower divergence and better pointing stability than with helium gas. The underlying pre‐heating process could be attributed to stimulated Raman scattering, which has been thought up till now to be negligible for short (t < 30 fs) laser pulses. However, as it is shown in this thesis, the interplay of the temporal intensity contrast of the laser pulse 1 ps before the peak of the pulse together with a sufficiently high plasma electron density can provide suitable conditions for this instability to grow, resulting in improved electron pulse parameters.']
### GND ID:
['gnd:1113884371', 'gnd:1128828189', 'gnd:36164-1', 'gnd:4174841-4', 'gnd:4222149-3', 'gnd:4286364-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867944560']
### GND class:
['Sävert, Alexander', 'Kielfeld-Beschleuniger', 'Friedrich-Schiller-Universität Jena', 'Plasmawelle', 'Ultrakurzer Lichtimpuls', 'Plasmakanone']
<|eot_id|> |
3A867954531.jsonld | ['Optimization strategies for Markov chain Monte Carlo inversion of seismic tomographic data'] | ['Probabilistic approach to inverse problem by means of Monte Carlo simulation is a computationally intensive approach whose feasibility has shown to be directly connected with the availability of computational resources and optimization. This study aims to introduce at first some fundamental theoretical aspects and to focus on the issue of optimization of McMC algorithms. We developed a transdimensional inversion scheme in the framework offered by the established deterministic inversion code simulr16. The issues of optimization and performance improvement were tackled by means of parallel independent realizations of the sampling process in addition to a staggered grid approach. The inverse model parametrization of the simulr16 code in conjunction with transdimensional McMC sampling, provided an affordable and reliable inversion strategy able to offer naturally smooth solutions equipped with a quantitative uncertainty estimation. Our probabilistic inversion method was tested on synthetic data and then applied on the inversion of a field data set from the Salzach valley (Austria). The structures recovered with our approach are compatible with those obtained with other well established methods. Metropolis-Hastings-based McMC algorithms require a careful tuning in order for the model space to be optimally sampled. Sub-optimal scaling of the size of random walk steps for Markov samplers leads to less efficient chains that require longer runtimes. We proposed a multivariate updating scheme that, using information carried by the model resolution matrix, proved to improve the performances of the classical M-H proposal. Trade-off relations between model parameters were obtained from the model resolution matrix and implemented in our updating scheme. McMC and non-stochastic tests revealed an improvement in performance in terms of increased acceptance rate and enhanced mixing properties.'] | ['gnd:1113894539', 'gnd:36164-1', 'gnd:4037612-6', 'gnd:4043664-0', 'gnd:4202326-9', 'gnd:4240945-7', 'gnd:4379341-1', 'gnd:4504622-0', 'gnd:4604149-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867954531'] | ['Fontanini, Francesco', 'Friedrich-Schiller-Universität Jena', 'Markov-Kette', 'Optimierung', 'Hochdimensionales System', 'Monte-Carlo-Simulation', 'Seismologie', 'Probabilistischer Algorithmus', 'Seismische Tomografie'] | Document
### Title: ['Optimization strategies for Markov chain Monte Carlo inversion of seismic tomographic data']
### Abstract:
['Probabilistic approach to inverse problem by means of Monte Carlo simulation is a computationally intensive approach whose feasibility has shown to be directly connected with the availability of computational resources and optimization. This study aims to introduce at first some fundamental theoretical aspects and to focus on the issue of optimization of McMC algorithms. We developed a transdimensional inversion scheme in the framework offered by the established deterministic inversion code simulr16. The issues of optimization and performance improvement were tackled by means of parallel independent realizations of the sampling process in addition to a staggered grid approach. The inverse model parametrization of the simulr16 code in conjunction with transdimensional McMC sampling, provided an affordable and reliable inversion strategy able to offer naturally smooth solutions equipped with a quantitative uncertainty estimation. Our probabilistic inversion method was tested on synthetic data and then applied on the inversion of a field data set from the Salzach valley (Austria). The structures recovered with our approach are compatible with those obtained with other well established methods. Metropolis-Hastings-based McMC algorithms require a careful tuning in order for the model space to be optimally sampled. Sub-optimal scaling of the size of random walk steps for Markov samplers leads to less efficient chains that require longer runtimes. We proposed a multivariate updating scheme that, using information carried by the model resolution matrix, proved to improve the performances of the classical M-H proposal. Trade-off relations between model parameters were obtained from the model resolution matrix and implemented in our updating scheme. McMC and non-stochastic tests revealed an improvement in performance in terms of increased acceptance rate and enhanced mixing properties.']
### GND ID:
['gnd:1113894539', 'gnd:36164-1', 'gnd:4037612-6', 'gnd:4043664-0', 'gnd:4202326-9', 'gnd:4240945-7', 'gnd:4379341-1', 'gnd:4504622-0', 'gnd:4604149-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A867954531']
### GND class:
['Fontanini, Francesco', 'Friedrich-Schiller-Universität Jena', 'Markov-Kette', 'Optimierung', 'Hochdimensionales System', 'Monte-Carlo-Simulation', 'Seismologie', 'Probabilistischer Algorithmus', 'Seismische Tomografie']
<|eot_id|> |
3A868290203.jsonld | ['Factors controlling virus-vector-host plant interactions : the model system Frankliniella occidentalis and Tomato spotted wilt virus'] | ['Frankliniella occidentalis, tospovirus, Tomato spotted wilt virus, vector competence, haplodiploidy, intraspecific variation, predictive models, vector manipulation hypothesis, innate immunity. - Vektorkompetenz, Haplodiploidie, intraspezifische Variation, Vorhersagemodelle, angeborene Immunität'] | ['gnd:1045947369', 'gnd:133873595', 'gnd:4278214-4', 'gnd:4308006-6', 'gnd:4317025-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868290203'] | ['Poehling, Hans-Michael', 'Maiß, Edgar', 'Übertragbare Krankheit', 'Tomatenbronzefleckenvirus', 'Frankliniella occidentalis', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Factors controlling virus-vector-host plant interactions : the model system Frankliniella occidentalis and Tomato spotted wilt virus']
### Abstract:
['Frankliniella occidentalis, tospovirus, Tomato spotted wilt virus, vector competence, haplodiploidy, intraspecific variation, predictive models, vector manipulation hypothesis, innate immunity. - Vektorkompetenz, Haplodiploidie, intraspezifische Variation, Vorhersagemodelle, angeborene Immunität']
### GND ID:
['gnd:1045947369', 'gnd:133873595', 'gnd:4278214-4', 'gnd:4308006-6', 'gnd:4317025-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868290203']
### GND class:
['Poehling, Hans-Michael', 'Maiß, Edgar', 'Übertragbare Krankheit', 'Tomatenbronzefleckenvirus', 'Frankliniella occidentalis', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A868311308.jsonld | ['Semi-empirical sea-level modelling'] | ['Semi-empirical sea-level models (SEMs) exploit physically motivated empirical relationships between global sea level and certain drivers, in the following global mean temperature. This model class evolved as a supplement to process-based models (Rahmstorf (2007)) which were unable to fully represent all relevant processes. They thus failed to capture past sea-level change (Rahmstorf et al. (2012)) and were thought likely to underestimate future sea-level rise. Semi-empirical models were found to be a fast and useful tool for exploring the uncertainties in future sea-level rise, consistently giving significantly higher projections than process-based models. In the following different aspects of semi-empirical sea-level modelling have been studied. Models were first validated using various data sets of global sea level and temperature. SEMs were then used on the glacier contribution to sea level, and to infer past global temperature from sea-level data via inverse modelling. Periods studied encompass the instrumental period, covered by…'] | ['gnd:1114189596', 'gnd:124079989', 'gnd:4169254-8', 'gnd:4170297-9', 'gnd:4180956-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868311308'] | ['Bittermann, Klaus', 'Rahmstorf, Stefan', 'Meeresspiegel', 'Modellierung', 'Semiempirische Methode'] | Document
### Title: ['Semi-empirical sea-level modelling']
### Abstract:
['Semi-empirical sea-level models (SEMs) exploit physically motivated empirical relationships between global sea level and certain drivers, in the following global mean temperature. This model class evolved as a supplement to process-based models (Rahmstorf (2007)) which were unable to fully represent all relevant processes. They thus failed to capture past sea-level change (Rahmstorf et al. (2012)) and were thought likely to underestimate future sea-level rise. Semi-empirical models were found to be a fast and useful tool for exploring the uncertainties in future sea-level rise, consistently giving significantly higher projections than process-based models. In the following different aspects of semi-empirical sea-level modelling have been studied. Models were first validated using various data sets of global sea level and temperature. SEMs were then used on the glacier contribution to sea level, and to infer past global temperature from sea-level data via inverse modelling. Periods studied encompass the instrumental period, covered by…']
### GND ID:
['gnd:1114189596', 'gnd:124079989', 'gnd:4169254-8', 'gnd:4170297-9', 'gnd:4180956-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868311308']
### GND class:
['Bittermann, Klaus', 'Rahmstorf, Stefan', 'Meeresspiegel', 'Modellierung', 'Semiempirische Methode']
<|eot_id|> |
3A868585963.jsonld | ['Ultrafast electron dynamics in Fe(CO)5 and Cr(CO)6'] | ['In this thesis, the two prototype catalysts Fe(CO)₅ and Cr(CO)₆ are investigated with time-resolved photoelectron spectroscopy at a high harmonic setup. In both of these metal carbonyls, a UV photon can induce the dissociation of one or more ligands of the complex. The mechanism of the dissociation has been debated over the last decades. The electronic dynamics of the first dissociation occur on the femtosecond timescale. For the experiment, an existing high harmonic setup was moved to a new location, was extended, and characterized. The modified setup can induce dynamics in gas phase samples with photon energies of 1.55eV, 3.10eV, and 4.65eV. The valence electronic structure of the samples can be probed with photon energies between 20eV and 40eV. The temporal resolution is 111fs to 262fs, depending on the combination of the two photon energies. The electronically excited intermediates of the two complexes, as well as of the reaction product Fe(CO)₄, could be observed with photoelectron spectroscopy in the gas phase for the first time. ...'] | ['gnd:132660296', 'gnd:4029919-3', 'gnd:4131115-2', 'gnd:4147958-0', 'gnd:4151511-0', 'gnd:4170370-4', 'gnd:4174491-3', 'gnd:4311267-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868585963'] | ['Föhlisch, Alexander', 'Katalysator', 'Dissoziation', 'Chromcarbonyle', 'Eisencarbonyle', 'Molekulardynamik', 'Photoelektronenspektroskopie', 'Femtosekundenbereich'] | Document
### Title: ['Ultrafast electron dynamics in Fe(CO)5 and Cr(CO)6']
### Abstract:
['In this thesis, the two prototype catalysts Fe(CO)₅ and Cr(CO)₆ are investigated with time-resolved photoelectron spectroscopy at a high harmonic setup. In both of these metal carbonyls, a UV photon can induce the dissociation of one or more ligands of the complex. The mechanism of the dissociation has been debated over the last decades. The electronic dynamics of the first dissociation occur on the femtosecond timescale. For the experiment, an existing high harmonic setup was moved to a new location, was extended, and characterized. The modified setup can induce dynamics in gas phase samples with photon energies of 1.55eV, 3.10eV, and 4.65eV. The valence electronic structure of the samples can be probed with photon energies between 20eV and 40eV. The temporal resolution is 111fs to 262fs, depending on the combination of the two photon energies. The electronically excited intermediates of the two complexes, as well as of the reaction product Fe(CO)₄, could be observed with photoelectron spectroscopy in the gas phase for the first time. ...']
### GND ID:
['gnd:132660296', 'gnd:4029919-3', 'gnd:4131115-2', 'gnd:4147958-0', 'gnd:4151511-0', 'gnd:4170370-4', 'gnd:4174491-3', 'gnd:4311267-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868585963']
### GND class:
['Föhlisch, Alexander', 'Katalysator', 'Dissoziation', 'Chromcarbonyle', 'Eisencarbonyle', 'Molekulardynamik', 'Photoelektronenspektroskopie', 'Femtosekundenbereich']
<|eot_id|> |
3A868653799.jsonld | ['Fast SLM-based linear and nonlinear structured illumination microscopy'] | ['Fluorescent microscopy becomes an essential tool for medical and biological investigations due to its major advantages of allowing for minimally invasive observation and rapid optical imaging. It is also a highly desirable tool to study the three dimensional interior of living specimens at a small scale. However, the resolution of optical systems is fundamentally limited by the diffraction of light, which consequently coins the development of super-resolution imaging methods. Structured illumination microscopy (SIM) is one of the super-resolution techniques. SIM provides a two-fold lateral resolution improvement for those types of samples where the fluorescence emission intensity depends linearly on the intensity of the illumination pattern. The concept of SIM is based on the Moiré effect. A structured illumination pattern is projected into the sample and high spatial frequency components of the biological sample, which are normally above the cut-off frequency of the optical transfer function and therefore lost, are then down-modulated to low spatial frequencies that reside inside the passband of the optical transfer function of the microscope. Typically, a lateral resolution of 100 nm becomes achievable in SIM. SIM is a wide-field technique and thus allows fast acquisition of large fields of view. This work discusses methods to improve the acquisition speed of SIM and to further enhance the resolution beyond the usual factor of two using nonlinear SIM (NL-SIM). Improvement of the acquisition speed is achieved by exploiting the advantages of a ferroelectric spatial light modulator (SLM) which offers fast switching of the illumination pattern, a modern sCMOS camera which provides fast readout and a novel synchronization approach between the different opto-electronical components.'] | ['gnd:1114419915', 'gnd:36164-1', 'gnd:4290958-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868653799'] | ['Lu-Walther, Hui-Wen', 'Friedrich-Schiller-Universität Jena', 'Fluoreszenzmikroskopie'] | Document
### Title: ['Fast SLM-based linear and nonlinear structured illumination microscopy']
### Abstract:
['Fluorescent microscopy becomes an essential tool for medical and biological investigations due to its major advantages of allowing for minimally invasive observation and rapid optical imaging. It is also a highly desirable tool to study the three dimensional interior of living specimens at a small scale. However, the resolution of optical systems is fundamentally limited by the diffraction of light, which consequently coins the development of super-resolution imaging methods. Structured illumination microscopy (SIM) is one of the super-resolution techniques. SIM provides a two-fold lateral resolution improvement for those types of samples where the fluorescence emission intensity depends linearly on the intensity of the illumination pattern. The concept of SIM is based on the Moiré effect. A structured illumination pattern is projected into the sample and high spatial frequency components of the biological sample, which are normally above the cut-off frequency of the optical transfer function and therefore lost, are then down-modulated to low spatial frequencies that reside inside the passband of the optical transfer function of the microscope. Typically, a lateral resolution of 100 nm becomes achievable in SIM. SIM is a wide-field technique and thus allows fast acquisition of large fields of view. This work discusses methods to improve the acquisition speed of SIM and to further enhance the resolution beyond the usual factor of two using nonlinear SIM (NL-SIM). Improvement of the acquisition speed is achieved by exploiting the advantages of a ferroelectric spatial light modulator (SLM) which offers fast switching of the illumination pattern, a modern sCMOS camera which provides fast readout and a novel synchronization approach between the different opto-electronical components.']
### GND ID:
['gnd:1114419915', 'gnd:36164-1', 'gnd:4290958-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868653799']
### GND class:
['Lu-Walther, Hui-Wen', 'Friedrich-Schiller-Universität Jena', 'Fluoreszenzmikroskopie']
<|eot_id|> |
3A868760226.jsonld | ['Frühneuhochdeutsche Konnektoren : Entwicklungslinien kausaler Verknüpfungen auf dem Gebiet der Modalität'] | [['"This diachronic, corpus-based study documents grammaticalization processes and the syntactic, semantic, and above all pragmatic properties of causal connectors in Early New High German, such as dieweil and denn, as well as derhalben and darum, along with the prepositions halben and wegen. Thanks to the use of modern descriptive models, the findings are also relevant for the analysis of modern German connectors"--', '"Warum welche Form der kausalen Verknüpfung im Deutschen gewählt wird, ist nicht überzeugend geklärt. Ob man auf Konnektoren wie weil, denn, darum, deshalb oder Präpositionen wie wegen zurückgreift, hängt mit den pragmatischen Eigenschaften dieser Ausdrücke zusammen. Sie erlauben nämlich dem Sprecher in unterschiedlicher Weise, seine Einstellung zu verdeutlichen. Modalisierungen dieser Art erklärt der Ansatz von Eve Sweetser, nach welchem etwa kausale Verknüpfungen auf drei pragmatischen Ebenen verstanden werden können: der Sachverhaltsebene, der epistemischen und der Sprechaktebene. Im Rahmen einer korpusbasierten Untersuchung wird nahezu das gesamte kausale Feld des Frühneuhochdeutschen in den Blick genommen. Die Erstellung eines hochdifferenzierten und nach Dialogizitätsgrad gestaffelten Textkorpus aus Originaltexten aus der Zeit zwischen 1472 und 1680 sowie die Engführung älterer und jüngster Forschungsansätze ermöglichen eine exakte Parametrisierung der Modalität. Sie liefern interessante Detailergebnisse zu den kausalen Konnektoren und Präpositionen des Frühneuhochdeutschen, erfassen deren modales Verknüpfungspotential und geben Aufschluss über die Grammatikalisierungsprozesse und den heutigen Gebrauch jener Kausalmarker"--']] | ['gnd:1065653190', 'gnd:1159000336', 'gnd:4129491-9', 'gnd:4168049-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868760226'] | ['De Gruyter Mouton', 'Gagel, Sebastian', 'Frühneuhochdeutsch', 'Logische Partikel'] | Document
### Title: ['Frühneuhochdeutsche Konnektoren : Entwicklungslinien kausaler Verknüpfungen auf dem Gebiet der Modalität']
### Abstract:
[['"This diachronic, corpus-based study documents grammaticalization processes and the syntactic, semantic, and above all pragmatic properties of causal connectors in Early New High German, such as dieweil and denn, as well as derhalben and darum, along with the prepositions halben and wegen. Thanks to the use of modern descriptive models, the findings are also relevant for the analysis of modern German connectors"--', '"Warum welche Form der kausalen Verknüpfung im Deutschen gewählt wird, ist nicht überzeugend geklärt. Ob man auf Konnektoren wie weil, denn, darum, deshalb oder Präpositionen wie wegen zurückgreift, hängt mit den pragmatischen Eigenschaften dieser Ausdrücke zusammen. Sie erlauben nämlich dem Sprecher in unterschiedlicher Weise, seine Einstellung zu verdeutlichen. Modalisierungen dieser Art erklärt der Ansatz von Eve Sweetser, nach welchem etwa kausale Verknüpfungen auf drei pragmatischen Ebenen verstanden werden können: der Sachverhaltsebene, der epistemischen und der Sprechaktebene. Im Rahmen einer korpusbasierten Untersuchung wird nahezu das gesamte kausale Feld des Frühneuhochdeutschen in den Blick genommen. Die Erstellung eines hochdifferenzierten und nach Dialogizitätsgrad gestaffelten Textkorpus aus Originaltexten aus der Zeit zwischen 1472 und 1680 sowie die Engführung älterer und jüngster Forschungsansätze ermöglichen eine exakte Parametrisierung der Modalität. Sie liefern interessante Detailergebnisse zu den kausalen Konnektoren und Präpositionen des Frühneuhochdeutschen, erfassen deren modales Verknüpfungspotential und geben Aufschluss über die Grammatikalisierungsprozesse und den heutigen Gebrauch jener Kausalmarker"--']]
### GND ID:
['gnd:1065653190', 'gnd:1159000336', 'gnd:4129491-9', 'gnd:4168049-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A868760226']
### GND class:
['De Gruyter Mouton', 'Gagel, Sebastian', 'Frühneuhochdeutsch', 'Logische Partikel']
<|eot_id|> |
3A869431986.jsonld | ['Essays on international trade and migration'] | [["This dissertation was prepared as a collection of 4 research articles in the field of international trade with a focus on gravity modeling and estimation for international trade and migration and on domestic firm-level labor market effects of internationalization. Chapter 2 structurally estimates a micro-founded gravity equation for migration flows. For a sample of 33 European Union (EU) and OECD countries, the effects on immigration from two scenarios are quantified. First, it provides the direct and indirect immigration effects of Turkey becoming a member of the European Union. Second, it evaluates a deeper integration of the European Union single market from lowered language barriers. Comparative static results differ quantitatively and qualitatively from predictions of consistently estimated coefficients. First, comparative static effects on immigration are substantially lower and second, immigration in third countries is affected negatively by bilaterally decreased migration frictions. Chapter 3 asks how the welfare quantification of trade liberalization changes if one allows workers to be mobile within established frameworks. This chapter therefore provides a first structurally estimable model of international trade with endogenous international migration choices of workers. We use the model for an ex ante comparative static welfare quantification of the Transatlantic Trade and Investment Partnership. We use dyadic trade and migration data for 36 OECD countries and find that quantitative welfare predictions change if workers are allowed to migrate. The results are informative about the complex welfare changes of international economic integration agreements with respect to the interaction of trade and migration frictions. Chapter 4 contributes to the literature that tries to explain why the observation of reduced frictions with respect to international trade due to globalization does not show up if one infers elasticities of these frictions with established tools. It employs a newly developed gravity equation estimator. Within three different data sets it finds that the distance coefficient increases over time when standard estimators are used, while a non-linear estimation of the newly developed estimation leads to a decline in the distance coefficient over time. This shows that the distance puzzle, thus, arises from a growing bias of standard estimates. The latter can be explained by an increase of the importance of the bias from omitting the number of heterogeneous exporting firms relative to the bias from omitting zero trade flows. Chapter 5 investigates why domestic labor market effects of firm's internationalization strategies might differ across empirical studies. This chapter precisely investigates the effects of offshoring and FDI on German establishment employment. It compares different modes and measures of offshoring and FDI and employs two different micro-data sets in a unified methodical framework. The results confirm positive employment effects from different FDI measures which we find in the literature, but show negative employment effects from international sourcing which includes domestic closures. We show that the results are sensitive to the mode of internationalization rather than to the estimation method, the choice of control or selection variables, or the employed data sets.", 'Diese Dissertation umfasst 4 Forschungsaufsätze innerhalb der Spezialisierung Internationaler Handel mit einem Fokus auf die Modellierung und Schätzung von Gravitationsmodellen des Handels und der Migration wie auch auf die heimischen Beschäftigungseffekte von Internationalisierungsstrategien von Unternehmen. Kapitel 2 schätzt ein mikro-fundiertes, strukturelles Gravitationsmodell für Migration. Für eine Stichprobe von 33 Ländern der Europäischen Union (EU) und der OECD werden die Migrationseffekte von zwei Szenarien quantifiziert. Zum einen werden die direkten und indirekten Effekte eines Türkei-EU Beitritts simuliert. Zum anderen wird eine tiefere Integration des europäischen Binnenmarktes in Form von reduzierten Sprachbarrieren analysiert. Die Ergebnisse der komparativ statischen Analyse unterschieden sich dabei quantitativ und qualitativ zu Projektionen mittels konsistent geschätzter Koeffizienten. Die Effekte auf Immigration sind zum einen deutlich niedriger und zum anderen ist der Immigrationseffekt von reduzierten bilateralen Migrationskosten auf Drittländer negativ. Kapitel 3 fragt nach den Veränderungen einer Wohlfahrtsanalyse von Handelsliberalisierungen innerhalb etablierter Modelle, wenn diese Modelle um Arbeitsmobilität erweitert werden. Dafür entwickelt dieses Kapitel zunächst ein strukturell schätzbares Handelsmodell indem eine endogene Migrationsentscheidung der Arbeiter integriert ist. Dieses Modell wird dann benutzt um eine ex ante, komparativ-statische Wohlfahrtsanalyse des Transatlantischen Freihandelsabkommens durchzuführen. Für 36 OECD Länder zeigen die Ergebnisse Unterschiede in der Wohlfahrtsveränderung, wenn Arbeitsmobilität gegeben ist. Die Ergebnisse geben Aufschluss über die komplexen Wohlfahrtsveränderungen von internationalen Handels- und Migrationsliberalisierungen. Kapitel 4 trägt Erkenntnisse zu der Literatur bei, die versucht zu erklären warum die Beobachtung reduzierter internationaler Handelsbarrieren aufgrund von Globalisierung nicht sichtbar in geschätzten Elastizitäten etablierter Modelle ist. Für etablierte Schätzverfahren finden wir in drei verschiedenen Datensätzen gestiegene Distanzkoeffizienten über die Zeit während die nichtlineare Schätzung eines neu entwickelten Verfahrens zu einem Rückgang der Koeffizienten über die Zeit aufzeigt. Dies belegt, dass das sog. Distance Puzzle die Folge einer wachsenden Verzerrung von Standardverfahren ist. Kapitel 5 untersucht warum sich über verschiedene empirische Studien hinweg heimische Arbeitsmarkteffekte von Internationalisierungsstrategien von Unternehmen unterscheiden. Dafür wird hier der Effekt vom sog. Offshoring und von ausländischen Direktinvestitionen (FDI) auf die Beschäftigung innerhalb deutscher Unternehmen untersucht. Innerhalb eines einheitlichen methodischen Rahmens werden zwei verschiedene Mikrodatensätze und unterschiedliche Arten und Maße für Offshoring und FDI verglichen. Die Ergebnisse bestätigen die positiven Beschäftigungseffekte von FDI in der Literatur, jedoch zeigen sie negative Beschäftigungseffekte wenn immer heimische Schließungen einhergehen. Wir zeigen, dass die Ergebnisse abhängig sind von der Art der Internationalisierung und nicht von der Schätzmethode, der Wahl der Kontrollvariablen oder von den benutzten Datensätzen.']] | ['gnd:4003832-4', 'gnd:4120730-0', 'gnd:4216837-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869431986'] | ['Außenhandel', 'Migration', 'Gravitationsmodell'] | Document
### Title: ['Essays on international trade and migration']
### Abstract:
[["This dissertation was prepared as a collection of 4 research articles in the field of international trade with a focus on gravity modeling and estimation for international trade and migration and on domestic firm-level labor market effects of internationalization. Chapter 2 structurally estimates a micro-founded gravity equation for migration flows. For a sample of 33 European Union (EU) and OECD countries, the effects on immigration from two scenarios are quantified. First, it provides the direct and indirect immigration effects of Turkey becoming a member of the European Union. Second, it evaluates a deeper integration of the European Union single market from lowered language barriers. Comparative static results differ quantitatively and qualitatively from predictions of consistently estimated coefficients. First, comparative static effects on immigration are substantially lower and second, immigration in third countries is affected negatively by bilaterally decreased migration frictions. Chapter 3 asks how the welfare quantification of trade liberalization changes if one allows workers to be mobile within established frameworks. This chapter therefore provides a first structurally estimable model of international trade with endogenous international migration choices of workers. We use the model for an ex ante comparative static welfare quantification of the Transatlantic Trade and Investment Partnership. We use dyadic trade and migration data for 36 OECD countries and find that quantitative welfare predictions change if workers are allowed to migrate. The results are informative about the complex welfare changes of international economic integration agreements with respect to the interaction of trade and migration frictions. Chapter 4 contributes to the literature that tries to explain why the observation of reduced frictions with respect to international trade due to globalization does not show up if one infers elasticities of these frictions with established tools. It employs a newly developed gravity equation estimator. Within three different data sets it finds that the distance coefficient increases over time when standard estimators are used, while a non-linear estimation of the newly developed estimation leads to a decline in the distance coefficient over time. This shows that the distance puzzle, thus, arises from a growing bias of standard estimates. The latter can be explained by an increase of the importance of the bias from omitting the number of heterogeneous exporting firms relative to the bias from omitting zero trade flows. Chapter 5 investigates why domestic labor market effects of firm's internationalization strategies might differ across empirical studies. This chapter precisely investigates the effects of offshoring and FDI on German establishment employment. It compares different modes and measures of offshoring and FDI and employs two different micro-data sets in a unified methodical framework. The results confirm positive employment effects from different FDI measures which we find in the literature, but show negative employment effects from international sourcing which includes domestic closures. We show that the results are sensitive to the mode of internationalization rather than to the estimation method, the choice of control or selection variables, or the employed data sets.", 'Diese Dissertation umfasst 4 Forschungsaufsätze innerhalb der Spezialisierung Internationaler Handel mit einem Fokus auf die Modellierung und Schätzung von Gravitationsmodellen des Handels und der Migration wie auch auf die heimischen Beschäftigungseffekte von Internationalisierungsstrategien von Unternehmen. Kapitel 2 schätzt ein mikro-fundiertes, strukturelles Gravitationsmodell für Migration. Für eine Stichprobe von 33 Ländern der Europäischen Union (EU) und der OECD werden die Migrationseffekte von zwei Szenarien quantifiziert. Zum einen werden die direkten und indirekten Effekte eines Türkei-EU Beitritts simuliert. Zum anderen wird eine tiefere Integration des europäischen Binnenmarktes in Form von reduzierten Sprachbarrieren analysiert. Die Ergebnisse der komparativ statischen Analyse unterschieden sich dabei quantitativ und qualitativ zu Projektionen mittels konsistent geschätzter Koeffizienten. Die Effekte auf Immigration sind zum einen deutlich niedriger und zum anderen ist der Immigrationseffekt von reduzierten bilateralen Migrationskosten auf Drittländer negativ. Kapitel 3 fragt nach den Veränderungen einer Wohlfahrtsanalyse von Handelsliberalisierungen innerhalb etablierter Modelle, wenn diese Modelle um Arbeitsmobilität erweitert werden. Dafür entwickelt dieses Kapitel zunächst ein strukturell schätzbares Handelsmodell indem eine endogene Migrationsentscheidung der Arbeiter integriert ist. Dieses Modell wird dann benutzt um eine ex ante, komparativ-statische Wohlfahrtsanalyse des Transatlantischen Freihandelsabkommens durchzuführen. Für 36 OECD Länder zeigen die Ergebnisse Unterschiede in der Wohlfahrtsveränderung, wenn Arbeitsmobilität gegeben ist. Die Ergebnisse geben Aufschluss über die komplexen Wohlfahrtsveränderungen von internationalen Handels- und Migrationsliberalisierungen. Kapitel 4 trägt Erkenntnisse zu der Literatur bei, die versucht zu erklären warum die Beobachtung reduzierter internationaler Handelsbarrieren aufgrund von Globalisierung nicht sichtbar in geschätzten Elastizitäten etablierter Modelle ist. Für etablierte Schätzverfahren finden wir in drei verschiedenen Datensätzen gestiegene Distanzkoeffizienten über die Zeit während die nichtlineare Schätzung eines neu entwickelten Verfahrens zu einem Rückgang der Koeffizienten über die Zeit aufzeigt. Dies belegt, dass das sog. Distance Puzzle die Folge einer wachsenden Verzerrung von Standardverfahren ist. Kapitel 5 untersucht warum sich über verschiedene empirische Studien hinweg heimische Arbeitsmarkteffekte von Internationalisierungsstrategien von Unternehmen unterscheiden. Dafür wird hier der Effekt vom sog. Offshoring und von ausländischen Direktinvestitionen (FDI) auf die Beschäftigung innerhalb deutscher Unternehmen untersucht. Innerhalb eines einheitlichen methodischen Rahmens werden zwei verschiedene Mikrodatensätze und unterschiedliche Arten und Maße für Offshoring und FDI verglichen. Die Ergebnisse bestätigen die positiven Beschäftigungseffekte von FDI in der Literatur, jedoch zeigen sie negative Beschäftigungseffekte wenn immer heimische Schließungen einhergehen. Wir zeigen, dass die Ergebnisse abhängig sind von der Art der Internationalisierung und nicht von der Schätzmethode, der Wahl der Kontrollvariablen oder von den benutzten Datensätzen.']]
### GND ID:
['gnd:4003832-4', 'gnd:4120730-0', 'gnd:4216837-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869431986']
### GND class:
['Außenhandel', 'Migration', 'Gravitationsmodell']
<|eot_id|> |
3A869441930.jsonld | ['ABC transporters in insect detoxification pathways'] | ['Almost half of all insects in the world feed on plants; however plants exploit defense mechanisms of both physical and chemical nature, such as secondary metabolites. Insects on the other hand have developed ways to circumvent these defense barriers, for example by detoxifying the secondary metabolites through metabolism and excretion. Furthermore, herbivorous insects encounter additional challenges, such as insecticides. A suitable instrument to overcome both obstacles may be the multigene family of ATP-binding cassette (ABC) transporters, which comprises eight subfamilies encoding for transmembrane proteins that actively export a wide range of substrates out of the cell. These proteins have been associated with various functions in eukaryotes and prokaryotes; however information in insects is scarce. Therefore, the aim of this thesis was to identify ABC transporters in lepidopteran herbivores and to investigate their role in insect detoxification pathways in relation to insect-plant adaptation mechanisms as well as their role in insecticide intoxication. The role of ABC transporters was characterized on a genomic as well as a transcriptomic level (RNAseq) in different lepidopteran species. These results provide fundamental insights into the detoxification mechanism of insects focusing on insect-plant-adaptations. In addition, one candidate gene was functionally characterized regarding its role in the Bacillus thuringiensis (Bt) toxin mode of action. This illustrates that ABC transporters are not only involved in detoxification mechanisms but also support intoxications. Beyond, this knowledge will support the future development of new pest management strategies in agriculture.'] | ['gnd:111261205X', 'gnd:1192684982', 'gnd:36164-1', 'gnd:4014873-7', 'gnd:4052831-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869441930'] | ['Bretschneider, Anne', 'Heckel, David G.', 'Friedrich-Schiller-Universität Jena', 'Entgiftung', 'Schmetterlinge'] | Document
### Title: ['ABC transporters in insect detoxification pathways']
### Abstract:
['Almost half of all insects in the world feed on plants; however plants exploit defense mechanisms of both physical and chemical nature, such as secondary metabolites. Insects on the other hand have developed ways to circumvent these defense barriers, for example by detoxifying the secondary metabolites through metabolism and excretion. Furthermore, herbivorous insects encounter additional challenges, such as insecticides. A suitable instrument to overcome both obstacles may be the multigene family of ATP-binding cassette (ABC) transporters, which comprises eight subfamilies encoding for transmembrane proteins that actively export a wide range of substrates out of the cell. These proteins have been associated with various functions in eukaryotes and prokaryotes; however information in insects is scarce. Therefore, the aim of this thesis was to identify ABC transporters in lepidopteran herbivores and to investigate their role in insect detoxification pathways in relation to insect-plant adaptation mechanisms as well as their role in insecticide intoxication. The role of ABC transporters was characterized on a genomic as well as a transcriptomic level (RNAseq) in different lepidopteran species. These results provide fundamental insights into the detoxification mechanism of insects focusing on insect-plant-adaptations. In addition, one candidate gene was functionally characterized regarding its role in the Bacillus thuringiensis (Bt) toxin mode of action. This illustrates that ABC transporters are not only involved in detoxification mechanisms but also support intoxications. Beyond, this knowledge will support the future development of new pest management strategies in agriculture.']
### GND ID:
['gnd:111261205X', 'gnd:1192684982', 'gnd:36164-1', 'gnd:4014873-7', 'gnd:4052831-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869441930']
### GND class:
['Bretschneider, Anne', 'Heckel, David G.', 'Friedrich-Schiller-Universität Jena', 'Entgiftung', 'Schmetterlinge']
<|eot_id|> |
3A869454994.jsonld | ['Untersuchung der Diffusion von Lithium- und Natrium-Ionen in Festkörpern unter Berücksichtigung der Dimensionalität des Kristallgitters'] | ['Li-Diffusion, Na-Diffusion, Dimensionalität, Festkörper-NMR-Spektroskopie, Impedanzspektroskopie. - Dimensionality, solid-state NMR spectroscopy, impedance spectroscopy'] | ['gnd:4012277-3', 'gnd:4161400-8', 'gnd:4184773-8', 'gnd:4185549-8', 'gnd:4249439-4', 'gnd:4253377-6', 'gnd:4318210-0', 'gnd:4322206-7', 'gnd:4365574-9', 'gnd:4713583-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869454994'] | ['Diffusion', 'Impedanzspektroskopie', 'Ternäre Verbindungen', 'Titandioxid', 'Niederdimensionaler Leiter', 'Niobsulfide', 'Natriumoxid', 'Lithiumverbindungen', 'Lithiumoxid', 'Festkörper-NMR-Spektroskopie', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Untersuchung der Diffusion von Lithium- und Natrium-Ionen in Festkörpern unter Berücksichtigung der Dimensionalität des Kristallgitters']
### Abstract:
['Li-Diffusion, Na-Diffusion, Dimensionalität, Festkörper-NMR-Spektroskopie, Impedanzspektroskopie. - Dimensionality, solid-state NMR spectroscopy, impedance spectroscopy']
### GND ID:
['gnd:4012277-3', 'gnd:4161400-8', 'gnd:4184773-8', 'gnd:4185549-8', 'gnd:4249439-4', 'gnd:4253377-6', 'gnd:4318210-0', 'gnd:4322206-7', 'gnd:4365574-9', 'gnd:4713583-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869454994']
### GND class:
['Diffusion', 'Impedanzspektroskopie', 'Ternäre Verbindungen', 'Titandioxid', 'Niederdimensionaler Leiter', 'Niobsulfide', 'Natriumoxid', 'Lithiumverbindungen', 'Lithiumoxid', 'Festkörper-NMR-Spektroskopie', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A869469681.jsonld | ['Species-specific fine root biomass, morphology and dynamics of six co-occurring deciduous tree species in the Hainich National Park and a conifer tree species at the alpine treeline'] | [['This thesis is subdivided into two main research areas. The first two studies were conducted in a mature mixed temperate broad leaved forest with regard to species identity effects on fine root traits, while the third study of the thesis addresses the influence of soil temperature on fine roots of Pinus cembra at the alpine treeline. In the species-rich broad leaved forest within the Hainich National Park, we assessed the role of taxonomic position and mycorrhiza type (EM and AM) on fine root biomass, fine root morphology (on root order level) and fine root dynamics of six coexisting tree s...', 'Die vorliegende Arbeit setzt sich aus drei Studien zusammen. Die ersten beiden Studien wurden im temperaten Laubmischwald im Hainich-Nationalpark durchgeführt. Feinwurzeln von sechs verschiedenen Laubbaumarten aus demselben Baumbestand wurden verglichen um die Abhängigkeit der Feinwurzeleigenschaften von der Artidentität zu ermitteln. Die dritte Studie behandelt die Fragestellung, in wie fern die Bodentemperatur und der Schattenwurf der Krone von Pinus cembra deren Feinwurzelverteilung, -morphologie und -produktivität an der alpinen Waldgrenze beeinflusst.']] | ['gnd:114042233', 'gnd:142383546', 'gnd:4058151-2', 'gnd:4068873-2', 'gnd:4188976-9', 'gnd:4463621-0', 'gnd:4602392-6', 'gnd:4697595-0', 'gnd:4751096-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869469681'] | ['Hauck, Markus', 'Leuschner, Christoph', 'Stubaier Alpen', 'Arve', 'Waldgrenze', 'Feinwurzel', 'Baumbestand', 'Nationalpark Hainich', 'Laubmischwald'] | Document
### Title: ['Species-specific fine root biomass, morphology and dynamics of six co-occurring deciduous tree species in the Hainich National Park and a conifer tree species at the alpine treeline']
### Abstract:
[['This thesis is subdivided into two main research areas. The first two studies were conducted in a mature mixed temperate broad leaved forest with regard to species identity effects on fine root traits, while the third study of the thesis addresses the influence of soil temperature on fine roots of Pinus cembra at the alpine treeline. In the species-rich broad leaved forest within the Hainich National Park, we assessed the role of taxonomic position and mycorrhiza type (EM and AM) on fine root biomass, fine root morphology (on root order level) and fine root dynamics of six coexisting tree s...', 'Die vorliegende Arbeit setzt sich aus drei Studien zusammen. Die ersten beiden Studien wurden im temperaten Laubmischwald im Hainich-Nationalpark durchgeführt. Feinwurzeln von sechs verschiedenen Laubbaumarten aus demselben Baumbestand wurden verglichen um die Abhängigkeit der Feinwurzeleigenschaften von der Artidentität zu ermitteln. Die dritte Studie behandelt die Fragestellung, in wie fern die Bodentemperatur und der Schattenwurf der Krone von Pinus cembra deren Feinwurzelverteilung, -morphologie und -produktivität an der alpinen Waldgrenze beeinflusst.']]
### GND ID:
['gnd:114042233', 'gnd:142383546', 'gnd:4058151-2', 'gnd:4068873-2', 'gnd:4188976-9', 'gnd:4463621-0', 'gnd:4602392-6', 'gnd:4697595-0', 'gnd:4751096-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869469681']
### GND class:
['Hauck, Markus', 'Leuschner, Christoph', 'Stubaier Alpen', 'Arve', 'Waldgrenze', 'Feinwurzel', 'Baumbestand', 'Nationalpark Hainich', 'Laubmischwald']
<|eot_id|> |
3A86954148X.jsonld | ['Robust automatic speech recognition and modeling of auditory discrimination experiments with auditory spectro-temporal features'] | ['Automatic speech recognition (ASR) systems still do not perform as well as human listeners under realistic conditions. The unmatched ability of humans to understand speech in most difficult acoustic conditions originates from the superior properties of their auditory system. The aim of this thesis is to improve the recognition performance of ASR systems in difficult acoustic conditions by carefully integrating auditory signal processing strategies. To this end, the physiologically inspired extraction of spectro-temporal modulation patterns was successfully integrated into the front-end of a standard ASR system. Further, the joint spectro-temporal processing could be separated into independent temporal and spectral processes. To investigate the reason for the remaining "man-machine-gap" in recognition performance, a range of critical auditory discrimination tasks were performed using ASR systems. The comparison with empirical data showed that the separate spectro-temporal modulation front-end provides a suitable auditory model and revealed the importance of across-frequency processing in speech recognition. <engl.>'] | ['gnd:1106414667', 'gnd:115487956', 'gnd:26375-8', 'gnd:4003961-4', 'gnd:4056494-0', 'gnd:4116579-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86954148X'] | ['Schädler, Marc René', 'Kollmeier, Birger', 'Carl von Ossietzky Universität Oldenburg', 'Automatische Spracherkennung', 'Sprachsignal', 'Sprachverarbeitung'] | Document
### Title: ['Robust automatic speech recognition and modeling of auditory discrimination experiments with auditory spectro-temporal features']
### Abstract:
['Automatic speech recognition (ASR) systems still do not perform as well as human listeners under realistic conditions. The unmatched ability of humans to understand speech in most difficult acoustic conditions originates from the superior properties of their auditory system. The aim of this thesis is to improve the recognition performance of ASR systems in difficult acoustic conditions by carefully integrating auditory signal processing strategies. To this end, the physiologically inspired extraction of spectro-temporal modulation patterns was successfully integrated into the front-end of a standard ASR system. Further, the joint spectro-temporal processing could be separated into independent temporal and spectral processes. To investigate the reason for the remaining "man-machine-gap" in recognition performance, a range of critical auditory discrimination tasks were performed using ASR systems. The comparison with empirical data showed that the separate spectro-temporal modulation front-end provides a suitable auditory model and revealed the importance of across-frequency processing in speech recognition. <engl.>']
### GND ID:
['gnd:1106414667', 'gnd:115487956', 'gnd:26375-8', 'gnd:4003961-4', 'gnd:4056494-0', 'gnd:4116579-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A86954148X']
### GND class:
['Schädler, Marc René', 'Kollmeier, Birger', 'Carl von Ossietzky Universität Oldenburg', 'Automatische Spracherkennung', 'Sprachsignal', 'Sprachverarbeitung']
<|eot_id|> |
3A869883577.jsonld | ['Optimization strategies for Markov chain Monte Carlo inversion of seismic tomographic data'] | ['Probabilistic approach to inverse problem by means of Monte Carlo simulation is a computationally intensive approach whose feasibility has shown to be directly connected with the availability of computational resources and optimization. This study aims to introduce at first some fundamental theoretical aspects and to focus on the issue of optimization of McMC algorithms. We developed a transdimensional inversion scheme in the framework offered by the established deterministic inversion code simulr16. The issues of optimization and performance improvement were tackled by means of parallel independent realizations of the sampling process in addition to a staggered grid approach. The inverse model parametrization of the simulr16 code in conjunction with transdimensional McMC sampling, provided an affordable and reliable inversion strategy able to offer naturally smooth solutions equipped with a quantitative uncertainty estimation. Our probabilistic inversion method was tested on synthetic data and then applied on the inversion of a field data set from the Salzach valley (Austria). The structures recovered with our approach are compatible with those obtained with other well established methods. Metropolis-Hastings-based McMC algorithms require a careful tuning in order for the model space to be optimally sampled. Sub-optimal scaling of the size of random walk steps for Markov samplers leads to less efficient chains that require longer runtimes. We proposed a multivariate updating scheme that, using information carried by the model resolution matrix, proved to improve the performances of the classical M-H proposal. Trade-off relations between model parameters were obtained from the model resolution matrix and implemented in our updating scheme. McMC and non-stochastic tests revealed an improvement in performance in terms of increased acceptance rate and enhanced mixing properties.'] | ['gnd:1113894539', 'gnd:36164-1', 'gnd:4240945-7', 'gnd:4379341-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869883577'] | ['Fontanini, Francesco', 'Friedrich-Schiller-Universität Jena', 'Monte-Carlo-Simulation', 'Seismologie'] | Document
### Title: ['Optimization strategies for Markov chain Monte Carlo inversion of seismic tomographic data']
### Abstract:
['Probabilistic approach to inverse problem by means of Monte Carlo simulation is a computationally intensive approach whose feasibility has shown to be directly connected with the availability of computational resources and optimization. This study aims to introduce at first some fundamental theoretical aspects and to focus on the issue of optimization of McMC algorithms. We developed a transdimensional inversion scheme in the framework offered by the established deterministic inversion code simulr16. The issues of optimization and performance improvement were tackled by means of parallel independent realizations of the sampling process in addition to a staggered grid approach. The inverse model parametrization of the simulr16 code in conjunction with transdimensional McMC sampling, provided an affordable and reliable inversion strategy able to offer naturally smooth solutions equipped with a quantitative uncertainty estimation. Our probabilistic inversion method was tested on synthetic data and then applied on the inversion of a field data set from the Salzach valley (Austria). The structures recovered with our approach are compatible with those obtained with other well established methods. Metropolis-Hastings-based McMC algorithms require a careful tuning in order for the model space to be optimally sampled. Sub-optimal scaling of the size of random walk steps for Markov samplers leads to less efficient chains that require longer runtimes. We proposed a multivariate updating scheme that, using information carried by the model resolution matrix, proved to improve the performances of the classical M-H proposal. Trade-off relations between model parameters were obtained from the model resolution matrix and implemented in our updating scheme. McMC and non-stochastic tests revealed an improvement in performance in terms of increased acceptance rate and enhanced mixing properties.']
### GND ID:
['gnd:1113894539', 'gnd:36164-1', 'gnd:4240945-7', 'gnd:4379341-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869883577']
### GND class:
['Fontanini, Francesco', 'Friedrich-Schiller-Universität Jena', 'Monte-Carlo-Simulation', 'Seismologie']
<|eot_id|> |
3A869888943.jsonld | ['Investigating noncommutative structures : quantum groups and dual groups in the context of quantum probability'] | [['The history of Mathematics has been lead in part by the desire for generalization: once an object was given and had been understood, there was the desire to find a more general version of it, to fit it into a broader framework. Noncommutative Mathematics fits into this description, as its interests are objects analoguous to vector spaces, or probability spaces, etc., but without the commonsense interpretation that those latter objects possess. Indeed, a space can be described by its points, but also and equivalently, by the set of functions on this space. This set is actually a commutative algebra, sometimes equipped with some more structure: *-algebra, C*-algebra, von Neumann algebras, Hopf algebras, etc. The idea that lies at the basis of noncommutative Mathematics is to replace such algebras by algebras that are not necessarily commutative any more and to interpret them as "algebras of functions on noncommutative spaces". Of course, these spaces do not exist independently from their defining algebras, but facts show that a lot of the results holding in (classical) probability or (classical) group theory can be extended to their noncommutative counterparts, or find therein powerful analogues. The extensions of group theory into the realm of noncommutative Mathematics has long been studied and has yielded the various quantum groups. The easiest version of them, the compact quantum groups, consist of C*-algebras equipped with a *-homomorphism &Delta with values in the tensor ...', 'Quantengruppe, Zufallsmatrizen, Lévy-prozess, Quantenwahrscheinlichkeitstheorie, Random matrices, Lévy processes, quantum groups, quantum probability, free probability']] | ['gnd:36158-6', 'gnd:4057624-3', 'gnd:4137007-7', 'gnd:4176599-0', 'gnd:4252437-4', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869888943'] | ['Ernst-Moritz-Arndt-Universität Greifswald', 'Stochastische Matrix', 'Wahrscheinlichkeit', 'Quantenlogik', 'Quantengruppe', 'Lévy-Prozess'] | Document
### Title: ['Investigating noncommutative structures : quantum groups and dual groups in the context of quantum probability']
### Abstract:
[['The history of Mathematics has been lead in part by the desire for generalization: once an object was given and had been understood, there was the desire to find a more general version of it, to fit it into a broader framework. Noncommutative Mathematics fits into this description, as its interests are objects analoguous to vector spaces, or probability spaces, etc., but without the commonsense interpretation that those latter objects possess. Indeed, a space can be described by its points, but also and equivalently, by the set of functions on this space. This set is actually a commutative algebra, sometimes equipped with some more structure: *-algebra, C*-algebra, von Neumann algebras, Hopf algebras, etc. The idea that lies at the basis of noncommutative Mathematics is to replace such algebras by algebras that are not necessarily commutative any more and to interpret them as "algebras of functions on noncommutative spaces". Of course, these spaces do not exist independently from their defining algebras, but facts show that a lot of the results holding in (classical) probability or (classical) group theory can be extended to their noncommutative counterparts, or find therein powerful analogues. The extensions of group theory into the realm of noncommutative Mathematics has long been studied and has yielded the various quantum groups. The easiest version of them, the compact quantum groups, consist of C*-algebras equipped with a *-homomorphism &Delta with values in the tensor ...', 'Quantengruppe, Zufallsmatrizen, Lévy-prozess, Quantenwahrscheinlichkeitstheorie, Random matrices, Lévy processes, quantum groups, quantum probability, free probability']]
### GND ID:
['gnd:36158-6', 'gnd:4057624-3', 'gnd:4137007-7', 'gnd:4176599-0', 'gnd:4252437-4', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A869888943']
### GND class:
['Ernst-Moritz-Arndt-Universität Greifswald', 'Stochastische Matrix', 'Wahrscheinlichkeit', 'Quantenlogik', 'Quantengruppe', 'Lévy-Prozess']
<|eot_id|> |
3A870148559.jsonld | ['Kontaktierung Ionen-implantierter Boremitter in n-Typ Silizium-Solarzellen mittels Silber/Aluminium-Pasten'] | ['n-Typ Silizium, PERT-Solarzelle, Silber/Aluminium-Paste, Siebdruck, Schablonendruck, Emittersättigungsstrom. - n-type silicon, PERT solar cell, silver/aluminium paste, screen print, stencil print, emitter recombination current'] | ['gnd:106952591X', 'gnd:111873159X', 'gnd:4181740-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870148559'] | ['Osten, H. Jörg', 'Kiefer, Fabian', 'Solarzelle', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Kontaktierung Ionen-implantierter Boremitter in n-Typ Silizium-Solarzellen mittels Silber/Aluminium-Pasten']
### Abstract:
['n-Typ Silizium, PERT-Solarzelle, Silber/Aluminium-Paste, Siebdruck, Schablonendruck, Emittersättigungsstrom. - n-type silicon, PERT solar cell, silver/aluminium paste, screen print, stencil print, emitter recombination current']
### GND ID:
['gnd:106952591X', 'gnd:111873159X', 'gnd:4181740-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870148559']
### GND class:
['Osten, H. Jörg', 'Kiefer, Fabian', 'Solarzelle', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A870206443.jsonld | ['Mesoscopic structure through the prism of transverse relaxation'] | ['Zusammenfassung: In standard MR images the contrast between different tissues is primarily determined via their distinctive relaxation rates resulting from differences in the molecular dipole-dipole interactions. In addition, the transverse relaxation in biological tissue is influenced by the heterogeneous magnetic susceptibility of tissues on the mesoscopic scale of cells and capillaries. When exposed to a strong main field this results in heterogeneous magnetic structures that cause an additional loss of coherence of individual spin signals leading to a dephasing of the overall MR signal, so-called (transverse) mesoscopic relaxation. These structures are smaller than the typical MR imaging resolution achievable in humans and cannot be investigated directly. The signal acquired from a volume element is a huge average over the individual spins diffusing through the heterogeneous substructure.In this context, this thesis analyzes the statistical properties of structural organization in magnetically heterogeneous media that survive the massive signal averaging and that are obtainable from the measurable MR signal. Considered is the statistical organization of magnetic susceptibility inclusions that induce a heterogeneous magnetic field on the mesoscopic scale. In such an environment the nuclear spins rotate at various different Larmor frequencies, which leads to an overall frequency shift and additional dephasing, the mesoscopic relaxation as introduced above, of the MR signal'] | ['gnd:1115729861', 'gnd:4075421-2', 'gnd:4120806-7', 'gnd:4168567-2', 'gnd:4182335-7', 'gnd:4240945-7', 'gnd:4280799-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870206443'] | ['Ruh, Alexander', 'NMR-Spektroskopie', 'Kernspintomografie', 'Magnetische Suszeptibilität', 'Spin-Spin-Relaxation', 'Monte-Carlo-Simulation', 'Mesoskopisches System'] | Document
### Title: ['Mesoscopic structure through the prism of transverse relaxation']
### Abstract:
['Zusammenfassung: In standard MR images the contrast between different tissues is primarily determined via their distinctive relaxation rates resulting from differences in the molecular dipole-dipole interactions. In addition, the transverse relaxation in biological tissue is influenced by the heterogeneous magnetic susceptibility of tissues on the mesoscopic scale of cells and capillaries. When exposed to a strong main field this results in heterogeneous magnetic structures that cause an additional loss of coherence of individual spin signals leading to a dephasing of the overall MR signal, so-called (transverse) mesoscopic relaxation. These structures are smaller than the typical MR imaging resolution achievable in humans and cannot be investigated directly. The signal acquired from a volume element is a huge average over the individual spins diffusing through the heterogeneous substructure.In this context, this thesis analyzes the statistical properties of structural organization in magnetically heterogeneous media that survive the massive signal averaging and that are obtainable from the measurable MR signal. Considered is the statistical organization of magnetic susceptibility inclusions that induce a heterogeneous magnetic field on the mesoscopic scale. In such an environment the nuclear spins rotate at various different Larmor frequencies, which leads to an overall frequency shift and additional dephasing, the mesoscopic relaxation as introduced above, of the MR signal']
### GND ID:
['gnd:1115729861', 'gnd:4075421-2', 'gnd:4120806-7', 'gnd:4168567-2', 'gnd:4182335-7', 'gnd:4240945-7', 'gnd:4280799-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870206443']
### GND class:
['Ruh, Alexander', 'NMR-Spektroskopie', 'Kernspintomografie', 'Magnetische Suszeptibilität', 'Spin-Spin-Relaxation', 'Monte-Carlo-Simulation', 'Mesoskopisches System']
<|eot_id|> |
3A870414283.jsonld | ['Transpiration by oil palm and rubber plantations: refining methods and delineating differences'] | ['Oil palm (Elaeis guineensis Jacq.) and rubber (Hevea brasiliensis Müll. Arg.) plantations cover large areas in tropical regions and may still expand further. In contrast, the area covered by natural forests has strongly declined. From environmental perspectives, this raises concerns not only with respect to biodiversity but also regarding the integrity of the hydrological cycle including potential changes in transpiration. For rubber plantations, high evapotranspiration rates were reported from mainland Asia and it was indicated that rubber tree transpiration responds sensitively to dynamic...'] | ['gnd:4030108-4', 'gnd:4136213-5', 'gnd:4138608-5', 'gnd:4172434-3', 'gnd:4219549-4', 'gnd:4539542-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870414283'] | ['Kautschuk', 'Plantage', 'Wassernutzung', 'Ölpalme', 'Evapotranspiration', 'Saftbewegung'] | Document
### Title: ['Transpiration by oil palm and rubber plantations: refining methods and delineating differences']
### Abstract:
['Oil palm (Elaeis guineensis Jacq.) and rubber (Hevea brasiliensis Müll. Arg.) plantations cover large areas in tropical regions and may still expand further. In contrast, the area covered by natural forests has strongly declined. From environmental perspectives, this raises concerns not only with respect to biodiversity but also regarding the integrity of the hydrological cycle including potential changes in transpiration. For rubber plantations, high evapotranspiration rates were reported from mainland Asia and it was indicated that rubber tree transpiration responds sensitively to dynamic...']
### GND ID:
['gnd:4030108-4', 'gnd:4136213-5', 'gnd:4138608-5', 'gnd:4172434-3', 'gnd:4219549-4', 'gnd:4539542-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870414283']
### GND class:
['Kautschuk', 'Plantage', 'Wassernutzung', 'Ölpalme', 'Evapotranspiration', 'Saftbewegung']
<|eot_id|> |
3A87065733X.jsonld | ['Essays on empirical finance in times of crises : fractional integration, structural breaks, and explosiveness'] | ['Sovereign credit risk, liquidity risk, explosiveness, structural breaks, fractional integration. - Liquiditätsrisiko, explosive Prozesse, Strukturbrüche'] | ['gnd:1047317710', 'gnd:109730569', 'gnd:1126258431', 'gnd:4066517-3', 'gnd:4390312-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87065733X'] | ['Wegener, Christoph', 'Schulenburg, Johann-Matthias', 'Sibbertsen, Philipp', 'Wirtschaftsstatistik', 'Kapitalmarktforschung', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Essays on empirical finance in times of crises : fractional integration, structural breaks, and explosiveness']
### Abstract:
['Sovereign credit risk, liquidity risk, explosiveness, structural breaks, fractional integration. - Liquiditätsrisiko, explosive Prozesse, Strukturbrüche']
### GND ID:
['gnd:1047317710', 'gnd:109730569', 'gnd:1126258431', 'gnd:4066517-3', 'gnd:4390312-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87065733X']
### GND class:
['Wegener, Christoph', 'Schulenburg, Johann-Matthias', 'Sibbertsen, Philipp', 'Wirtschaftsstatistik', 'Kapitalmarktforschung', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A870747169.jsonld | ['On Monte Carlo time-dependent variational principles'] | ['Monte Carlo method, dissipative dynamics, Landblad equation. - Monte-Carlo-Simulation, dissipative Dynamik, Lindblad-Gleichung'] | ['gnd:4182338-2', 'gnd:4209641-8', 'gnd:4226961-1', 'gnd:4240945-7', 'gnd:4300046-0', 'gnd:4705961-8', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870747169'] | ['Spinsystem', 'Dissipatives System', 'Gittermodell', 'Monte-Carlo-Simulation', 'Quantenmechanisches System', 'Quanteninformatik', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['On Monte Carlo time-dependent variational principles']
### Abstract:
['Monte Carlo method, dissipative dynamics, Landblad equation. - Monte-Carlo-Simulation, dissipative Dynamik, Lindblad-Gleichung']
### GND ID:
['gnd:4182338-2', 'gnd:4209641-8', 'gnd:4226961-1', 'gnd:4240945-7', 'gnd:4300046-0', 'gnd:4705961-8', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A870747169']
### GND class:
['Spinsystem', 'Dissipatives System', 'Gittermodell', 'Monte-Carlo-Simulation', 'Quantenmechanisches System', 'Quanteninformatik', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A871418657.jsonld | ['Charge multiplication detectors for use in the HL-LHC and measurement of the production cross-section in pp collisions of a W boson in association with a charm quark at sqrt (s) = 8 TeV with the ATLAS detector'] | ['Zusammenfassung: The exploration into the subatomic world has lead to particle accelerators of every increasing size. The Large Hadron Collider (LHC), currently the world’s largest particle accelerator and machine, was built with the primary goal of dis- covering the Higgs boson, the last ingredient of the Standard Model, and to search for new physics beyond the Standard Model’s predictions. The discovery of the Higgs boson in 2012 at the LHC by the ATLAS and CMS collaborations has been a triumph for human ingenuity. Although its discovery is an important milestone in understanding the fundamental workings of nature, the search for a full uni- fied theory describing all natural phenomena is far from over. Physicists know the Standard Model is not the end game, as it fails to account for various ob- served phenomena, which include dark matter, dark energy, and perhaps most embarrassingly, gravity. The search for new physics requires precise knowledge of several parameters in the Standard Model. This includes the distribution of quarks and gluons inside the proton, usually in terms of parton distribution functions, or PDFs. T'] | ['gnd:1093621397', 'gnd:111695043X', 'gnd:4375595-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871418657'] | ['HL-LHC', 'Betancourt, Christopher', 'ATLAS (Teilchendetektor)'] | Document
### Title: ['Charge multiplication detectors for use in the HL-LHC and measurement of the production cross-section in pp collisions of a W boson in association with a charm quark at sqrt (s) = 8 TeV with the ATLAS detector']
### Abstract:
['Zusammenfassung: The exploration into the subatomic world has lead to particle accelerators of every increasing size. The Large Hadron Collider (LHC), currently the world’s largest particle accelerator and machine, was built with the primary goal of dis- covering the Higgs boson, the last ingredient of the Standard Model, and to search for new physics beyond the Standard Model’s predictions. The discovery of the Higgs boson in 2012 at the LHC by the ATLAS and CMS collaborations has been a triumph for human ingenuity. Although its discovery is an important milestone in understanding the fundamental workings of nature, the search for a full uni- fied theory describing all natural phenomena is far from over. Physicists know the Standard Model is not the end game, as it fails to account for various ob- served phenomena, which include dark matter, dark energy, and perhaps most embarrassingly, gravity. The search for new physics requires precise knowledge of several parameters in the Standard Model. This includes the distribution of quarks and gluons inside the proton, usually in terms of parton distribution functions, or PDFs. T']
### GND ID:
['gnd:1093621397', 'gnd:111695043X', 'gnd:4375595-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871418657']
### GND class:
['HL-LHC', 'Betancourt, Christopher', 'ATLAS (Teilchendetektor)']
<|eot_id|> |
Subsets and Splits