content
string | pred_label
string | pred_score
float64 |
|---|---|---|
how to pronounce bully
how to improve pronunciation of bully
press buttons with phonetic symbols to learn about each sound.
press Play to play an example pronunciation of bully.
video examples of bully pronunciation
An example use of bully in a speech by a native speaker of british english:
“… featured a bully called kearney asking a …”
meaning of bully
A bully is someone who uses their power to hurt others.
words with pronunciation similar to bully
words that rhyme with bully
|
__label__pos
| 0.999953 |
Most leaders in the workplace know that diversity can be a source of strength, but when this talent is disconnected, it can be a weakness and negatively impact team performance. We are trained as individuals with unique specialties and strengths, so creating a cohesive work environment is essential.
Here’s how you can maximize team effectiveness and establish good teamwork in any business.
Use communication to improve team performance
Companies with 100 employees lose an average of $420,000 per year due to poor communication. Although it’s difficult to put an exact dollar amount on the cost of poor communication, it carries significant consequences.
Effective teamwork and communication is more challenging in the age of remote work with communication apps like Zoom, Slack, or Twist. But this doesn’t mean you can’t practice effective communication. You can still connect with your team and establish trust to achieve a personal connection.
Tips for good workplace communication
Have regular and short meetings with your team. Leave room for open group communication, either in person or via a video call.
Fit one-on-ones into the routine. This can make some people more comfortable voicing their opinions, ideas, and providing more information.
Ask, listen, then act. This helps delegate the sense of responsibility in the decision-making process and makes everyone feel included.
Diversify your communication. Use video calls, phone calls, emails, in-person communication, and change your group dynamics.
No meetings without a purpose. It’s essential to meet with your team regularly and stay up to date on progress and events, but you don’t want to hold meetings that don’t need to happen—this only wastes valuable time and resources.
Good teamwork needs a purpose
What holds a team together, guides their efforts, and gives them a way to measure their success? A shared purpose and common values.
Your purpose and goals are the “why” behind your team. When these are defined, your employees will understand where they fit into the bigger picture and why their work matters. When you use goals to measure team performance, it provides direction on where and how to improve.
Common values are the glue that holds a team together, setting you apart from others and giving everyone a clear picture of who the group is. It also gives everyone on the team a way to understand what takes priority, like quality or customer satisfaction.
Operating norms for maximum team effectiveness
Establish operating norms that align with your team’s values and goals. This provides structure, expectations, and routine for the group, creating an environment of trust and reliability.
According to an extensive study by Google, which looked at 180 teams, who is on your team is not the most important factor. What matters most is how the team works together. The study found that an environment with trust and open communication was the common factor for the best team effectiveness.
Team norms cover what is or isn’t acceptable and what behaviors are encouraged. Some examples include taking responsibility for mistakes, always being prepared for meetings, or clearly defining roles in the group dynamic.
Communicate, organize, and thrive
A good leader seeks to understand their team on a personal level, establish trust, and inspire everyone’s best. Prioritize communication, organize your plan of action, and success will follow.
Continue the dialogue and contact us at
Stay tuned for more insights.
Follow our company page on LinkedIn.
|
__label__pos
| 0.762762 |
What is LED Light Therapy?
LED light therapy is a new form of facial treatment that’s borne from research and technology developed by NASA!
While using LED lights to promote plant growth in space, engineers discovered that they actually have beneficial effects on our skin, including smoothing wrinkles, preventing/treating acne, and reducing inflammation in our skin.
Beauty therapists and skin clinics have since adopted the technique and begun treating patients with LED lights as part of a cosmetic service.
What to expect from an LED light facial
When beauty experts realised the benefits of using LED light therapy on their patients, they began running LED light facial treatments as part of their regular services.
Because LED light therapy doesn’t contain any UV light, it means it is safe for use on the skin in conjunction with other types of facial treatments too such as hydro facials.
Over time, adding LED light facials into your skincare routine can be a great way to reduce inflammation, prevent breakouts, and stimulate the collagen in your skin.
Appointments usually only last between 10-20 minutes and can be performed twice a week or as advised by your treatment provider.
There are various reasons why you might consider using LED light treatment on your skin.
These mainly include reducing wrinkles and inflammation and the treatment of acne. Other benefits and treatment uses include:
• Skin irritations (dermatitis)
• Eczema and rosacea
• Psoriasis
• Acne scarring
• Age spots
• Sun damage
There are also a range of other inflammatory skin conditions that can safely be treated by LED light therapy so speak to one of our specialists and we can advise if the treatment is right for you.
Are there any dangers to LED light therapy?
LED therapy is very safe. LED lights do not contain ultraviolet (UV) light rays and so don’t burn your skin. This makes LED light therapy much more like oxygen facials vs chemical peels in terms of their side effects.
However, there is a very rare chance that LED light therapy could lead to some minor side effects. These include pain, inflammation, tenderness, and rashes. If you experience any of these, or other side effects, then get in touch with your treatment provider as soon as possible.
Light therapy for skin
The way that LED light therapy is used on our skin is by treating you with a specific type of LED light depending on what you want to achieve from your treatment.
For example, there are four main colours of LED light (representing different wavelengths) that are used and they all have different benefits.
Amber/orange LED light stimulates the production of collagen and elastin in our skin, combating signs of ageing.
Blue LED light stimulates oxygen radicals deep within the skin which then kill bacteria and treat acne.
Red LED light promotes blood circulation underneath the skin which has a whole host of aesthetic and anti-ageing benefits.
White LED light tightens the skin and reduces inflammation.
Can you use LED light for acne?
Yes, LED light therapy can be used to help treat acne.
Specifically, if you want to treat acne, you would use a blue LED light. This particular frequency of light is the most effective at treating acne because it kills the bacteria present in the skin without leaving any damage to the skin.
If you want to use LED light therapy to treat acne, then it is advised to not take isotretinoin (Accutane) at the same time.
What is blue LED light therapy?
Blue LED light therapy is used primarily to treat acne.
When operating at that specific wavelength, the light can penetrate deep into the skin and then stimulates the production of oxygen radicals. This in turn kills the bacteria that acne needs to thrive.
What is red LED light therapy?
Red LED light therapy has many benefits that relate to anti-ageing and healing.
Low level light therapy operates at a low level wavelength and when used consistently can lead to the reduction of wrinkles, stretch marks, and scarring.
Blue light vs red light therapy
You should go for whatever type of LED light treatment that suits your needs best. Although, it is also safe to use multiple forms of LED light therapy alongside each other.
If you want to prevent or treat acne, then blue light would be the best for you.
If you want to receive anti-ageing benefits then red light would be better suited to you.
LED light therapy before and after
As there are multiple types of LED light therapy on the market, you should take a look at before and after pictures that match your treatment goals.
Take a look at how blue LED light therapy was used here to treat acne and acne scarring.
After receiving LED light therapy over the course of 8 weeks, visible acne had decreased and skin complexion had improved.
Is LED red light therapy safe?
LED red light therapy is safe for regular use. This is because LED lights do not contain UV rays and doesn’t burn skin.
Because sun damage can lead to large pores, LED light therapy can treat your skin without you needing open pores treatment on top of this.
How often should you have LED light therapy?
You should think of LED light therapy as a long-term treatment. You can receive treatment twice a week, but should discuss with your treatment provider for a personalised treatment plan.
Is LED light therapy safe when pregnant?
LED light therapy is safe for use if you are pregnant.
Can LED light therapy make you feel ill?
LED light therapy can very rarely lead to some side effects. These include redness, inflammation, and pain.
Book An Appointment
|
__label__pos
| 0.969742 |
Ep 42: Why different resurrection accounts? A journalist investigates
The four accounts of Jesus' resurrection contain differences - what explains these differences and what does it matter?
Elizabeth Redman
Bible reference(s):
Mark 16:1-8
Sun 5 Jun 2016
Jesus' resurrection
Media and current affairs
Logos Live
Bigger Questions
The four accounts of Jesus' resurrection contain differences. What explains these differences? Are the Gospels historically trustworthy? What difference does it make?
In this episode, host Robert Martin speaks with Elizabeth Redman. Elizabeth is a journalist with News Corp Australia. Elizabeth shares some of the joys and frustrations of journalism. She also shares about journalistic conventions on how journalists report the truth. She then examines specific conventions about writing the Gospels and how these can help resolve a number of differences in the resurrection accounts that skeptical scholars like Bart Ehrman raise. Elizabeth also gives her own reasons for why the resurrection of Jesus is 'top story'.
This episode of Bigger Questions was recorded under the show's previous title 'Logos Live', in 2014.
Add new comment
|
__label__pos
| 0.831373 |
John Perry
One needs to be able to recognize and commit oneself to tasks with inflated importance and unreal deadlines, while making oneself feel that they are important and urgent. This clears the way to accomplish several apparently less urgent, but eminently achievable, tasks.
|
__label__pos
| 0.994283 |
Skip to content
5th Edition Adventures: Sword Of Rami
From: Troll Lord
For generations the Kings of the small realm of Inallu have held the Sword of Rami as a symbol of their people. It is brought forth only when a new King is crowned. But the unthinkable has happened. While transporting the sword through the Fushdam Bottoms, a group of stalwart heroes were ambushed by a contingent of lizardfolk led by a female twilight elf. Quickly overcome, the heroes were left for dead, and the sword taken. This is where our story begins, as the heroes awaken, tending their wounds, diSCussing what to do next. The fate of the kingdom lies in their hands, and what an evil person might do with the sword is unthinkable. Their duty is clear.
Made in the USA.
|
__label__pos
| 0.963482 |
The Programming Lifecycle
Read this brief article about the programming lifecycle. As you read, consider the following steps of the programming lifecycle: Planning and Analysis, Design, Implementation, Testing and Debugging, Deployment, Maintenance
Software goes through various stages from its conception to its end. The term software development life cycle (SDLC) refers to the steps taken to develop software. There is no hard-and-fast rule to developing software, and many methodologies have been used. Though each takes a different approach, the various phases of the software development process can be broadly summarized as follows:
1. Planning and Analysis
2. Design
3. Implementation
4. Testing and Debugging
5. Deployment
6. Maintenance
The first stage of software development is planning and analysis. In this stage a requirement analysis is done, which includes finding out what the client’s needs are. Often, the client has an abstract idea about the requirements and an adept software engineer can get information about the project from the client through a series of one-on-one interviews, group sessions, and some brainstorming sessions. Based on the information gathered in this stage, a scope document is prepared. It serves as the starting point for the next stage.
Once the requirements are gathered, the second and third phase of the software development process begins. In these phases, a simple version of the program is implemented using a programming language chosen by the team lead. As the software is written, it is tested and debugged to eliminate as many bugs as possible.
Once the software is tested and works according to specification, it is deployed and given to the client. In the maintenance stage, the software is enhanced and any newfound bugs are fixed. If there are new requirements at this stage they can be added.
One can add additional features and repeat the steps of implementation, testing, and deployment as often as required. Software development is an iterative process, so during any stage of development one can go back to the previous stage and add or fix things.
There are several software development models that are used in the industry. A popular one, called the waterfall model, is shown below. The figure shows various stages of development. As you can see, in this approach, there is a path leading back from each stage to all previous stages. In the maintenance stage, the development process can return to any of the previous stages if a drawback is encountered, so a bug or flaw in any stage can be fixed in the maintenance stage of the SDLC.
The Waterfall Model
Source: Saylor Academy
Last modified: Monday, April 15, 2019, 3:31 PM
|
__label__pos
| 0.805804 |
UGA Libraries Logo
Rusk EE, Interview with Dean Rusk, circa 1985
Toggle Index/Transcript View Switch.
Search this Index
00:00:00 - Civil Rights and relations with other nations
Play segment
Partial Transcript: The question is civil rights.
Segment Synopsis: Rusk talks about the difficulty some foreign ambassadors had in completing every day tasks in a segregated America. Fixing race relations would help the United States' relations with other countries.
Keywords: Arthur Goldberg; Carl Rowan; Civil Rights Act of 1964; Cosmos Club; Mennen Williams; Metropolitan Club; State Department; ambassadors
00:04:21 - Blacks in the State Department
Play segment
Partial Transcript: This was a critically important matter to us.
Segment Synopsis: Rusk talks about blacks in the State Department. He mentions how many black workers who went to predominantly black colleges did not pass the Foreign Service Exam.
Keywords: Carl Rowan; Foreign Service Exam; Labor Department; Mennen Williams; State Department; unions
00:14:21 - Civil Rights Act of 1964 / Race relations and Ambassadors
Play segment
Partial Transcript: Did it give you any problem with the members of the Senate taking this position on domestic legislation with the tradition of nonpolitical activity on the part of the State Department?
Segment Synopsis: Rusk talks a little bit about the Civil Rights Act, and the key senators who made the passage of the act possible. Rusk later talks about how other countries did not want black ambassadors because they believe that blacks were second class citizens. Therefore, they do not want second class ambassadors.
Keywords: Carl Rowan; Chaing Kai-shek; Civil Rights Act; Everett Dirksen; Jacob Javits; New York; Senate Judiciary Committee; United Nations
00:20:15 - Testimony for the Senate Judiciary Committee / Civil Rights Bill
Play segment
Partial Transcript: Pop, getting back, if you will, to that hearing just for a moment.
Segment Synopsis: Rusk talks about his testimony to the Senate Committee on the issue of Civil Rights, and he talks about President Kennedy's intellectual view on Civil Rights. Rusk later talks about the Civil Rights Bill and the opponents to the bill.
Keywords: Carl Hayden; Everett Dirksen; Lincoln Memorial; Lister Hill; Martin Luther King Jr; New York Times; Richard B Russell; Senate Committee; State Department; Strom Thurmond; Warren Cohen
00:31:34 - Human Rights Convention
Play segment
Partial Transcript: I think it's appropriate for the United States to put forward its deepest commitments as a nation in this field of individual liberty.
Segment Synopsis: Rusk talks about the United States' commitment to protect civil liberties and individual liberties for people in other countries. Rusk also talks about how the US has ratified so few conventions on Human Rights. He briefly talks about Eleanor Roosevelt's role as the head of the U.N.'s Human Rights Commission, and he talks about she authored the Universal Declaration of Human Rights.
Keywords: Cape Town; Carl Rowan; Civil Rights; Eleanor Roosevelt; Genocide Convention; Human Rights Convention; United Nations; Universal Declaration of Human Rights; shore leave
00:42:13 - US relations with South Africa / Zimbabwe
Play segment
Partial Transcript: Do you think the black and some white leaders in the civil rights movement today that are attempting to bring about change in South Africa through protests at the South African Embassy in Washington, whether they are taking the right tack?
Segment Synopsis: Rusk talks about the United States' relations with South Africa and how those relations were tested because of race relations. Rusk briefly talks about Zimbabwe and the government they set up. He also talks about how the United Kingdom asked for help in maintaining Rhodesia (Zimbabwe).
Keywords: Kenya; Pretoria; Rhodesia; Senator Weicker; South Africa; South African Embassy; Untied Kingdom; Zimbabwe
00:54:18 - Lyndon B Johnson and the Civil Rights Bill
Play segment
Partial Transcript: Let's go back to 1963 and '64 for a few moments.
Segment Synopsis: Rusk talks about Lyndon B Johnson's role in securing the passage of the 1964 passage of the Civil Rights bill. He states how Johnson's views on Civil Rights came out of his 'deep feelings'.
Keywords: Arthur Goldberg; Civil Rights Bill; Comfort, Texas; German refugees; Germany; Justice Hugo Black; Lyndon B Johnson; Senate; Voting Rights Bill; chauffeur; race relations
|
__label__pos
| 0.974248 |
Open Ports on Your Router for QSee QSDR04RTC
Thumbnail image of Port Forward Staff
Port Forward Staff
Here is a list of the ports that need to be forwarded for a QSee QSDR04RTC DVR:
• TCP: 80, 9000
• UDP:
Forward Ports for a QSee QSDR04RTC DVR
When you use a QSee QSDR04RTC DVR you may need to forward ports in your router. The purpose of forwarding ports is to make a direct connection from the internet to a QSee QSDR04RTC DVR.
Routers generally do not allow incoming connection requests from the internet. By forwarding a port you can overcome this limitation.
Before Forwarding a Port
You need to know the following things before you can forward a port:
How to Locate Your Router's IP Address
How To Set Up Port Forwarding for a QSee QSDR04RTC DVR
A smart way to forward your ports is to use Network Utilities. Our Network Utilities software allows you to add port forwards and also remove them when you no longer need them to maximize your network security.
Another option is to go through the process of forwarding ports one step at a time. The process for forwarding a port is:
You can choose your router from our list to see exactly how to forward ports for a QSee QSDR04RTC DVR:
List of Routers - Customized for QSee QSDR04RTC
Those are the steps for forwarding ports in your router for a QSee QSDR04RTC DVR.
More From Port Forward
|
__label__pos
| 0.804552 |
Oxidation-Reduction Potential (ORP) Sensors and Use in Liquid Analysis
When you're testing the quality of water, it's important that you're aware of oxidation reduction potential and what this measurement indicates. ORP is a type of measurement that identifies the ability a substance has to reduce or oxidize another substance. The electrodes that are placed within an ORP sensor are able to take ORP measurements [...]
2021-03-30T09:04:45-07:00By |ORP|
Calculating ORP Measurement in Water
There are many different methods for measuring water, all of which are necessary for different applications. Some of the more popular methods for water measurements include measuring the pH of the water, measuring the conductivity, measuring the amount of dissolved oxygen, and measuring the chlorine dioxide in the water. Another very useful method for water [...]
2020-01-27T14:45:54-08:00By |ORP|
|
__label__pos
| 0.927785 |
Online Reference For Body, Mind & Spirit
Term: Earth Energies
The belief that there are natural energy paths that run through the earth. These paths can be detected in a variety of ways such as through dowsing. It is believed that ancient cultures placed objects such as standing stones or even temples at points where the paths converged. In the West, these lines of energy are often called Ley Lines. In the East, sciences developed around the study of these paths. In India, it was called Vaastu (or Vastu). In China, Vaastu evolved into Feng Shui. Importantly, if people know how, they can use this energy for a variety of purposes, such as healing and success.
Sometimes related to earth energies is the concept called the Gaia Theory. This is the idea that the earth and everything on it form a living, self-regulating entity. The energies of these living things form the basis of the earth energies.
AUTHOR: Donald Michael Kraig
See also: dowsingfeng shui
|
__label__pos
| 0.999938 |
Due to COVID-19, we have added some remote support services. See How
Please choose, YES or NO before each item that is/isn't considered to be a concern by the observer:
Scoring: Four percent credit for each numbered item checked 'No'?
Number of items checked 'No'___ x 4 = ___
Sudden plugged ear sensation? Ringing in your ears? Longterm exposure to loud sounds? Memory Loss? Dizziness? It's time to have your hearing screened. Schedule your free hearing screening now
|
__label__pos
| 0.938319 |
How Can Your Child Become a Good Essay Writer
Does your child have some problems regarding writing? Or dosed the word write have some bad impression to them? Do not worry, that is among the minor concentration issues that are found with the students. However, you have the responsibility to have them trained and encouraged to their own essays. Most of the students avoid writing because they generally lack interest. For them to have their interest regained, you can apply the use of visual aids or apply any of the modern methods. For instance, the structured exams, students have their analyticalskills tested through the use of academic writing tasks.
For the student to have a guarantee that they are already prepared, they must therefore be good performers in academic writing. However, most of the students have a problem with handling academic writing due to the hard vocabularies used or the expected skills in writing however much they need to get high scores in their studies. Below are some of the strategies that the student is expected to apply so that they can achieve good academic writing skills? If just in case the students still gets a hard time to capture the strategies indicated below, there are still guidelines to some sites like EssayMojothat could offer help in academic writing.
Improving Professional Writing Skills
There are various vocabularies considered to be of high class and excellent in nature. This way, there is an achievement of appreciation on the results accrued from examinations. There is a need for candidatelearning techniques that are more illustrative to improve their writing skills. To acquire judgment skills, they should engage in the writing of essays to improve their vocabulary treasure. Below are some of the tips that one can put into consideration to achieve good writing skills.
1. Ensure your child enjoys using a dictionary
For vocabulary expansion, ensure the child puts a dictionary into use. With this, you are guaranteed that your vocabulary will improve, which is a significant thing in writing.
1. Consider taking a more practice test.
These tests ensure that your child’s skills in writing and the collection of their vocabulary are polished. Tests dust their rusty brains and activate their minds making them more reliable. The practice test also helps to polish the writing skills. It is also a guarantee that the scoring rate will eventually be achieved.
1. Writing practice
This is the enhancement and the polishing of the writing skills. Engage in more practices and revisions, which is a way of memorizing the newly learned words.
1. Ensure they are fluent and direct to the topic
A quality essay must have a flow. Be direct to the topic, Avoid repetition, and consider the flow of points that should be linked to each other.
1. Define context and references
The discussion includes various factors, including cultural factors.
1. Omit old style
Keep modern factors in mind keeping aside old methodologies?Researchshould be made from the most recent sources.
1. Take caution in the sentence choice.
Long sentences should hardly be used. This way, you will have no grammar mistakes. Address the following tips to your child;
• Focus and concentrate on the work you are researching about
• Have the rules of custom writing followed
• While writing a case study, stick and give maximum concentration to the objectives.
• Collect the right data, and your conclusions will be correct.
• The above ways guarantee the present ability of your case study.
At times, the essay is left open-ended; this indicates the ability and the understanding of the topic. Being a good writer means interlinking all these factors during formation.
For more articles visit this website
Related Articles
Leave a Reply
Back to top button
|
__label__pos
| 0.807967 |
Add to Chrome
Cavalierly is a 10 letter word which starts with the letter C and ends with the letter Y for which we found 1 definitions.
(adv.) In a supercilious disdainful or haughty manner; arrogantly.
Syllable Information
The word cavalierly is a 10 letter word that has 4 syllable 's . The syllable division for cavalierly is: cav-a-lier-ly
Words by number of letters:
|
__label__pos
| 0.995586 |
antiferromagnetism in a sentence
1) Another critical temperature is the Néel temperature, below which antiferromagnetism occurs.
2) This gives rise to ferromagnetism, antiferromagnetism or ferrimagnetism.
3) However, the definition of multiferroics can be expanded to include non-primary order parameters, such as antiferromagnetism or ferrimagnetism.
antiferromagnetism example sentences
4) Antiferromagnetism
You can easily memorize the word and the meaning of antiferromagnetism
and This is a fast way of learning the meaning of antiferromagnetism with example sentences.
Always focus on the learning on sentences with antiferromagnetism
We believe you will easily learn to write and use the word antiferromagnetism in a sentence.
You can practice spelling and usage of the word by getting 10 examples of sentences with antiferromagnetism.
20 examples of simple sentences of antiferromagnetism. We tried to find and publish the the words with Simple Sentences of antiferromagnetism
Compound Sentences with antiferromagnetism
Complex Sentences with antiferromagnetism
Compound-Complex Sentences with antiferromagnetism
in a sentence
|
__label__pos
| 1 |
Choices and Commitments: The Soldiers at Gettysburg
Monument of armed men
(Gettysburg National Military Park)
About This Lesson
Where it fits into the curriculum
Time Period: Civil War Era
United States History Standards for Grades 5-12
Choices and Commitments: The Soldiers at Gettysburg relates to the following National Standards for History:
Era 5: Civil War and Reconstruction (1850-1877)
Curriculum Standards for Social Studies
National Council for the Social Studies
Choices and Commitments: The Soldiers at Gettysburg relates to the following Social Studies Standards:
Theme II: Time, Continuity and Change
Theme III: People, Places, and Environment
• Standard D- The student estimates distance, calculate scale, and distinguish other geographic relationships such as population density and spatial distribution patterns.
Theme IV: Individual Development and Identity
Theme VI: Power, Authority, and Governance
Theme X: Civic Ideals, and Practices
Objectives for students
Materials for students
1) Two maps of the Gettysburg battlefield and surrounding area;
3) A copy of the Gettysburg Address; and
4) Two historical photos of the aftermath of the battle.
Visiting the Park
Getting Started
Inquiry Question
Setting the Stage
After the carnage of Gettysburg, thousands more men would be killed and maimed during the two more years before the Confederates surrendered. The issue of slavery was the main cause of the Civil War. Yet the ordinary soldiers' reasons for fighting in the war were as personal and individual as those that all of us must make in life. The implications of many of these personal choices in the Civil War had great impact on the nation and its future.
White two story house with debris scattered around.
What appears to have happened here?
Locating the Site
Map of Civil War battles fought in Maryland
Visual Evidence
Map 2: The Disposition of Both Armies During the Three Days of the Battle
Map of Battle Lines
July 1
Map of Battle Lines
July 2
Map of Battle Lines
July 3
Each of these maps represents the positions of the opposing armies before the day's major battle action.
Both the Army of Northern Virginia (the Confederate army) and the Army of the Potomac (the Union army) concentrated their forces near Gettysburg after May 1863. The network of roads surrounding Gettysburg was the key to each army's arrival at the battle.
1) According to the maps, how did each army's position change between the start of July 1's main fighting and the start of the July 2's main fighting? In your description, be sure to refer to the roads and terrain features named on the map.
2) How did each army's position change between the start of the main fighting on July 2 and the start of the main fighting on July 3? Again, refer to the roads and terrain features named on the map.
3) What does the map for July 3 show as that day's main event?
4) How did the Union army use the terrain to its advantage during the Battle of Gettysburg?
Determining the Facts
Reading 1: Three Days of Carnage at Gettysburg
(Refer to Map 2 as you read the description of the battle.)
Units of the Union and the Confederate armies met near Gettysburg on June 30, 1863, and each quickly requested reinforcements. The main battle opened on July 1, with early morning attacks by the Confederates on Union troops on McPherson Ridge, west of the town. Though outnumbered, the Union forces held their position. The fighting escalated throughout the day as more soldiers from each army reached the battle area. By 4 p.m., the Union troops were overpowered, and they retreated through the town, where many were quickly captured. The remnants of the Union force fell back to Cemetery Hill and Culp's Hill, south of town. The Confederates failed to pursue their advantage, however, and the Union soldiers labored long into the night regrouping their men.
Throughout the night, both armies moved their men to Gettysburg and took up positions in preparation for the next day. By the morning of July 2, the main strength of both armies had arrived on the field. Battle lines were drawn up in sweeping arcs similar to a "J," or fishhook shape. The main portions of both armies were nearly a mile apart on parallel ridges: Union forces on Cemetery Ridge, Confederate forces on Seminary Ridge, to the west. General Robert E. Lee, commanding the Confederate troops, ordered attacks against the Union left and right flanks (ends of the lines). Starting in late afternoon, Confederate General James Longstreet's attacks on the Union left made progress, but they were checked by Union reinforcements brought to the fighting from the Culp's Hill area and other uncontested parts of the Union battle line. To the north, at the bend and barb of the fishhook (the other flank), Confederate General Richard Ewell launched his attack in the evening as the fighting at the other end of the fishhook was subsiding. Ewell's men seized part of Culp's Hill, but elsewhere they were repulsed. The day's results were indecisive for both armies.
In the very early morning of July 3, the Union army forced out the Confederates who had successfully taken Culp's Hill the previous evening. Then General Lee, having attacked the ends of the Union line the previous day, decided to assail the Union. The attack was preceded by a two hour artillery bombardment of Cemetery Hill and Ridge. For a time, the massed guns of both armies were engaged in a thunderous duel for supremacy. The Union defensive position held. In a final attempt to gain the initiative and win the battle, Lee sent approximately 12,000 soldiers across the one mile of open fields that separated the two armies near the Union center. General George Meade, commander of the Union forces, anticipated such a move and had readied his army. The Union lines did not break. Only every other Confederate who participated in this action retired to safety. Despite great courage, the attack (sometimes called Pickett's Charge or Longstreet's assault) was repulsed with heavy losses. Weakened by extremely heavy casualties in the three days at Gettysburg, the Confederates could no longer continue the battle, and on July 4 they began to withdraw from Gettysburg.
1. Which army had the advantage after the first day of fighting? What were some reasons for their success? Could they have been even more successful?
2. What was the situation by the evening of July 2?
3. What evidence from the previous day's fighting brought General Lee to decide on the strategy for Pickett's Charge on July 3? What was the result of that assault?
4. Why did General Lee decide to withdraw from Gettysburg?
Reading 1 was adapted from the National Park Service's visitor's guide for Gettysburg National Military Park.
Determining the Facts
Reading 2: Perspectives of Participants in the Battle
Part A
Part B
Part C
Part A Questions
1. What part did Elisha Hunt Rhodes play at Gettysburg?
3. How did he respond to the Union victory?
Part B Questions
1. How did Edward Porter Alexander feel about Georgia's secession?
3. How did he justify his choice?
Part C Questions
1. According to Andrew Baker, after what event did Captain W. T. Magruder resign from the Union Army? Based on the timing of his resignation, why do you think he resigned?
2. Why do you think Captain John Moore did not give the order to charge?
All Parts
Determining the Facts
Reading 3: The Gettysburg Address
November 19, 1863
With more than two years of war gone by, and with no certain end in sight, President Abraham Lincoln needed to reassure, buoy, and rededicate the spirit of the nation to continue the struggle until its ultimate end. He accomplished this when he was asked to deliver "a few appropriate remarks" at the dedication of a cemetery for the Gettysburg Union dead:
But, in a larger sense, we cannot dedicate--we cannot consecrate--we can not hallow--this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us--that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion--that we here highly resolve that these dead shall not have died in vain--that this nation, under God, shall have a new birth of freedom--and that government of the people, by the people, for the people, shall not perish from the earth.
1. How long after the battle did Lincoln give his address?
2. What did he say about the men who were buried in the cemetery?
3. How did he give meaning to their sacrifice?
4. What was it that Lincoln wanted the people of the United States to do for the dead soldiers?
Visual Evidence
Photo 1a: Union Dead near Peach Orchard.
Blurred photo of dead Civil War soldiers.
(Photo: Alexander Gardner. Gettysburg National Military Park)
Note to educators: This image depicts human remains and is blurred out of sensitivity. To view the unaltered image, click on the photograph.
Photo 1b: Aftermath of the Battle of Gettysburg, Trostle House.
White two story house with debris scattered around.
(Photo: Alexander Gardner. Gettysburg National Military Park)
1. Can you find evidence in the readings that indicates any of the men mentioned had witnessed scenes like these?
2. The Civil War was the first war that was extensively recorded by photographers. How might these images have affected the citizens who saw them?
3. What effect would the real views, rather than these photographed views, of the battlefield have had on veteran soldiers, new recruits, and officers in command? How might these images have influenced their readiness to obey orders in future battles, or the strength of their convictions?
4. How might the personal convictions of soldiers influence the outcome of a battle?
Putting It All Together
Activity 1: Describing the Experience of a Civil War Soldier
Based on the readings and other available primary sources, have students pretend to be journalists who have interviewed a soldier soon after the battle of Gettysburg. Ask them to write an article based on their imagined interview. Students should cover who their interviewee is and a description of the interviewee’s activities during the battle. Remind students that they do not need to like their interviewees or defend their position in the war. Rather, they are describing how one soldier experienced the Battle of Gettysburg. Ask a few students to read their articles aloud and then hold a classroom discussion on the different choices made by the soldiers that students "interviewed." Emphasize the point that for those who took part in the Civil War most decisions were life and death matters.
Activity 2: Comparing Perspectives
Activity 3: Persuasive Writing and Speaking
The Soldiers at Gettysburg--
Supplementary Resources
Gettysburg Resources
Gettysburg National Military Park
Library of Congress
The Valley of the Shadow
Last updated: July 8, 2021
|
__label__pos
| 0.92847 |
1. Tech
Let’s learn about virtual reality
Scientists use virtual reality to build new games and to help people fight their fears.
2. Tech
Computers are changing how art is made
Some people have challenged the idea that artificial intelligence can be creative. But new software can provide inspiration to artists or fully partner with them in the creative process.
3. Computing
Explainer: What is an algorithm?
These step-by-step instructions underlie social media, internet searches and other computer-based activities. But what are they exactly? We explain.
4. Tech
Have you ever yelled at a referee for making a bad call? Technology has begun taking over some calls in an attempt to make sports fairer.
5. Math
How math makes movies like Doctor Strange so otherworldly
In the 1970s, a mathematician introduced geometric patterns that he named fractals. Moviemakers are now using those patterns to create dazzling digital effects.
6. Computing
Computer chips from carbon nanotubes, not silicon, mark a milestone
Silicon has been king of cutting-edge electronics. But that reign may soon end, with carbon nanotubes taking silicon’s place.
7. Tech
AI can learn real-world skills by playing video games
Video games are helping AI systems work together and adapt to real-world situations.
8. Tech
This robot’s parts are helpless alone, but turn smart as they team up
In a new system called “particle robotics,” many small, simple helpless units can seemingly come to life and start moving when amassed into a team.
9. Computing
Novel fabric could turn perspiration into power
Sweat cools people by evaporating. A teen now wants to use it to generate electricity as well.
10. Science & Society
You can fight back against cyberattacks
Cyberattacks have cut power to a major city and delayed the delivery of medicine. Find out how experts combat such attacks and how to protect yourself.
11. Science & Society
These scientists help rescue ‘broken’ digital art
Computer-based art is more fragile than you might think. Fortunately, computer science offers new ways to restore these digital creations.
12. Chemistry
Smartphone app helps researchers track art ‘acne’
Metal soaps can form damaging blisters on the surface of oil paintings. Scientists are tracking these “breakouts” to protect priceless art.
|
__label__pos
| 0.963055 |
If you have made plans with a casino/hotel involved in a labor dispute, or which may become involved in one, you should take steps to protect yourself and your organization.
Contact the casino/hotel or the sales representative and urge them to resolve the potential or actual labor dispute.
Insist on adding “excused non-performance” language into your cancellation clause that specifically protects your event from the effects of a strike, lockout, and boycott. Check out our sample language to help you protect your event.
Model Protective Language for Event Contracts
Excused non-performance language and how it can protect your organization: Most excused non-performance and force majeure clauses protect organizations from so-called “acts of God.” However, many such clauses address other extraordinary events such as labor disputes, and an increasing number of these clauses include language that indemnifies organizations for meeting cancellations which are caused by labor disputes. Such language has been successfully used by many organizations for this purpose.
Meeting planners recognize that they need to protect themselves and their organizations from the potentially negative effects of labor disputes in this manner, and leading industry resources have begun to reflect some of those concerns. In the 2/1/04 issue of Religious Conference Manager, a report entitled “Negotiating and Contracts” specifically mentions unions in the section on negotiating contracts’ cancellation clauses.
With the right language, you should be able to cancel your meeting contract without penalty in the event of a labor dispute.
The following clauses can help protect the group in case of labor dispute:
In addition to the above, it would be helpful for the hotel/casino/resort to be required to disclose to the group any labor disputes, according to the following clause:
NOTIFICATION OF LABOR DISPUTE: The Hotel/Casino/Resort agrees to notify [your Group] in writing within ten (10) days after it becomes aware of any labor relations dispute involving the Hotel and its employees including, but not limited to, union picketing, the filing of an Unfair Labor Practice charge by a union, the expiration of a negotiated labor contract, an existing or impending strike or lockout or any other matter which could reasonably be construed as a labor-management relations dispute.
Sign up for text or email updates and the Culinary Union will keep you informed of the progress of negotiations and/or labor disputes in Las Vegas.
To discuss relocating to a labor-peaceful alternative venue in Las Vegas, call (702) 385-2131 or email [email protected].
Get Connected
|
__label__pos
| 0.912735 |
Having a good understanding of the people you design for is essential if you want to build a commercially successful product. While designers have many techniques that help them develop this understanding, there’s one key technique with a lot of advantages called empathy mapping.
As the name suggests, empathy maps help product teams build empathy with their end-users. It gets team members thinking from a user-centered perspective and helps them understand the users needs and wants.
In this article, I’ll define what empathy maps are and share 10 practical tips to help you develop better empathy maps.
What is empathy?
Empathy is the ability to identify and understand another person’s situation and feelings. We often hear the word “empathy” used as a synonym to “walking in someone else’s shoes.” Empathy is a core skill for designers because it allows them to identify with users and adopt their perspectives.
What is an empathy map?
An empathy map is a visualization tool used to articulate what a product team knows about a user. This tool helps product teams build a broader understanding of the “why” aspect behind user needs and wants. This tool forces product teams to practice empathic design, which shifts the focus from the product they want to build to the people who will use this product. As a team identifies what they know about the user and places this information on a chart, they gain a more holistic view of the user’s world and his or her problems, or opportunity space.
Visual of an empathy map that describes what the user says, thinks, does, and feels when using a product.
An empathy map describes what the user says, thinks, does, and feels.
Empathy maps vary in shapes and sizes. A typical empathy map includes four quadrants:
• Say – What the user says about the product. Ideally, this section contains real quotes from users recorded during interviews or user testing sessions.
• Think – What is the user thinking about when interacting with a product? What occupies the user’s thoughts? What matters to the user?
• Feel – This section contains information about the user’s emotional state. What worries the user? What does the user get excited about? How does the user feel about the experience?
• Do – What actions does the user take? What actions and behaviors did you notice?
While the empathy map described above is useful during initial analysis, it’s a bit too generic for brainstorming sessions focused on user experience design. In an attempt to make empathy maps more specific to UX design, Paul Boag proposed a format that is much more useful for product design. The map contains a different set of categories:
• Feelings – How is the user feeling about the experience? What matters to him or her?
• Tasks – What tasks are users trying to complete?
• Influences – What people, things, or places influence how the user acts?
• Pain points – What pain points might the user be experiencing that they hope to overcome? What are their fears, frustrations, and anxieties?
• Goals – What is the user’s ultimate goal? What are they trying to achieve?
An empathy map broken into 5 quadrants: tasks, influences, goal, pain points, and feelings.
Empathy maps can be used to visualize what we know about a persona in an organized way. Image by Paul Boag.
Empathy maps and user personas
Empathy maps and user personas are two closely related concepts. Empathy maps usually serve as a foundation for the user persona. After you get comprehensive information about your users, you can transfer this information to the model of the persona. Personas should represent a real person (your end-user), which will have more human characteristics such as name, age, motivations, personality, age, traits, and so on.
User personas contain demographic data, users motivations, type of personality, and behaviors, such as preferred media channels.
User persona example. Image by Xtensio.
When should you use empathy maps?
In the UX design process, empathy maps are best used from the very beginning of the process. Ideally, they should be created right after initial user research is done. In that case, they’ll have a substantial impact on product requirements and help product teams develop a meaningful value proposition.
Five things to do before the session
1. Define your primary purpose for empathy mapping
Before creating an empathy map, you should have a clear understanding of the importance of having one. There are two typical cases where you need to create a map: for a general understanding of your users, or for understanding a specific task or situation. For example, if you want to understand a particular user’s behavior ━ e.g. a certain kind of buying decision ━ you’ll need to create a task-based empathy map or an empathy map based on a single decision.
2. Conduct research
The best empathy maps are drawn from real data. Gather reports from user interviews, diary studies, or qualitative surveys. Once you have collected the necessary information, ask each team member who will participate in empathy mapping to read through the research individually prior to the session. Once all team members are familiar with the research data, you can proceed with the mapping process.
Tip: The most valuable ideas usually come from time spent listening to users. Start your project by interviewing and observing current and potential users to understand their pain points and aspirations better.
3. Don’t do it alone
While it’s possible to create an empathy map alone, it’s better to do it in a team. Empathic design is a team sport, and it’s essential that each team member thinks about the user when crafting a product. Creating empathy maps is a great team exercise that makes team members gather together and synthesize information about users. Invite all core product team members ━ product managers, designers, developers, marketers ━ to the session.
Tip: Invite stakeholders to the session too. Having stakeholders there during mapping sessions is beneficial for two reasons. First, it’s possible to create richer empathy maps by balancing business goals and users’ needs. Second, it’s possible to ensure that the product team and stakeholders are on the same page.
4. Make sure you will have enough time for the session
While the actual session shouldn’t take too long ━ usually about 30-60 minutes ━ it’s better to give yourself extra time and book a room for an additional 30 minutes. You’ll need 15 minutes before the session to make sure that the place is ready with materials such as a whiteboard, sticky notes, and markers. Following the meeting, you’ll need 15 minutes to summarize all the findings.
Tip: Print out any relevant information for the project that can serve as cues during the session. Having this information printed will prevent team members from using digital devices during the meeting.
5. Invite an experienced moderator to the session
A moderator is a person responsible for facilitating a working session. The role of a moderator consists of asking questions that will make team members brainstorm user characteristics. An experienced moderator is a person who:
• Doesn’t ask leading questions. Leading questions are questions that frame the participant’s mind around a particular answer. This often happens when a part of the answer is accidentally contained in the moderator’s question or the moderator subconsciously directs the participant to answer in a certain way by inserting their own opinions into the questions they’re asking.
• Doesn’t express their own opinion. Moderators should always control their reactions.
• Makes sure everyone participates in the activity.
Five things to do during and after the session
1. Always do a one-to-one mapping
Follow the rule, “one persona per map.” This means, if you have multiple personas, there should be an empathy map for each. Mixing different personas in one map won’t give you valuable insights.
2. Create context
Start by defining who will be the subject of the empathy map, or persona, and what they’ll do, or the goal they want to achieve. It’s worth mentioning where the subject is located when trying to accomplish that goal; for example, a tourist at the airport trying to order a taxi using a mobile app. The point of creating context is to make sure the team understands and empathizes with the subject’s situation.
3. Add the basic characteristics of the persona
Before you start asking questions, it’s essential to ensure the team is ready to morph into their user persona. Here are a few simple tricks that will help you get your team into the mood and make the persona feel more real:
• Give the persona a name and a job title.
• Fill in some personal details. You might want to draw eyes, a mouth, a nose, ears, or a hairstyle to differentiate the persona from other profiles.
4. Encourage team members to talk about their thoughts
After you define the essential characteristics of a persona, it’s time for the main session. The team brainstorms user characteristics by answering questions like “What are the user’s pain points when using a product?” Each team member should write their responses on post-it notes and stick them to the map. It’s essential to have the team members talk about their sticky notes as they place them on the empathy map. By asking questions, it’s possible to reach more profound insights ━ such as why team members really think the way they do ━ which can be valuable for the rest of the team.
Tip: Instead of writing directly on the map, use post-it notes and stick them in sections. Sticky notes can be easily removed, changed, or grouped. This will help you move insights around and cluster similar notes together that belong to the same quadrant. It’s also better to use colored post-it notes and assign a color to each team member. This will help improve the process and the results of mapping.
Colored sticky notes are grouped on a white board during an empathy mapping session.
Empathy maps developed during design thinking sessions. Participants placed sticky notes with ideas about the user onto the respective section of the empathy map. Image by IBM.
5. Summarize the results
At the end of the session, review the completed empathy map and discuss any patterns. Encourage team members to share their thoughts about the session. Ask them what new insights they learned that will help them during product development or what hypotheses they have about the users they’d like to validate. Once you collect all the information, organize it into a summary and share it with team members.
Things to do after the session
The benefit of the empathy map doesn’t end with the workshop itself. As a design artifact, an empathy map can help the product team along their product’s development cycle.
Use the empathy map as a reference
Empathy maps can be used as design documentation. An empathy map can be a North Star to guide your team in times of uncertainty; team members can use it when they need to validate an assumption about their users. But, it’s vital to keep empathy maps up to date by revising and adjusting them as you learn more about your users.
Turn your empathy map into a poster
It’s possible to create a nice reminder of what the user is thinking or feeling by turning an empathy map into a poster. Create a few copies of the map and hang them around the office. This helps ensure the user remains in people’s minds as they work.
A framed poster of an empathy map for a user named Brian outlines the details of his quadrants.
Turn an empathy map into a poster and hang it in a high traffic area in your workspace. Image by Paul Boag.
Empathy design is a great way to make your product team think about using a customer-first philosophy. When done well, empathy maps create a chain reaction that affects the entire project. Empathic design leads to a deeper understanding of how users affect the product requirements, which affects the product strategy, affecting the prototypes, and as a result, makes for a better final design of a product.
|
__label__pos
| 0.759136 |
An Etymological Dictionary of Astronomy and Astrophysics
فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک
M. Heydari-Malayeri - Paris Observatory
Number of Results: 199 Search : sit
column density
چگالی ِ ستون
cagâli-ye sotun
Fr.: densité de colonne
Density of the interstellar matter lying between an object and the Earth in a cylinder with a unity base.
column; → density.
hamnehâdé (#)
Fr.: composite
Made up of distinct components. The components may retain part of their identities. → compound, → combination.
From O.Fr. composite, from L. compositus, p.p. of componere "to put together," → compose.
Hamnehâdé, p.p. of hamnehâdancompose.
composite number
عدد ِ همنهاده
adad-e hamnehâdé
Fr.: nombre composite
composite; → number.
composite population
پرینش ِ همنهاده
porineš-e hamnehâdé
Fr.: population composite
A stellar population consisting of more than one → simple population. Also called complex population.
composite; → population.
composite spectrum
بیناب ِ همنهاده
binâb-e hamnehâdé
Fr.: spectre composite
A stellar spectrum displaying lines characterising two stars of different types.
composite; → spectrum.
hamneheš (#)
Fr.: composition
1) General: The act or manner of composing; the result or product of composing.
2) Chemistry: The proportion of the elements of which a substance is made up.
3) Mechanics: The determination of a force whose effect is the same as that of two or more given forces acting simultaneously.
Hamnehesh, from ham-, → com-, + neheš verbal noun from nehâdan "to put, place," → compose.
compound proposition
گزارهی ِ همنات
gozâre-ye hamnât
Fr.: proposition composée
A statement formed from simple statements by the use of words such as "and," "or," "not," "implies," or their corresponding symbols.
compound; → proposition.
conditional proposition
گزارهی ِ بوتاری
gozâre-ye butâri
Fr.: proposition conditionelle
conditional; → proposition.
critical density
چگالی ِ پرژنی
cagâli-ye paržani
Fr.: densité critique
critical; → density.
current density
چگالی ِ جریان
cagâli-ye jarayân
Fr.: densité de courant
The electric current per unit of cross-sectional area perpendicular to the direction of current flow. It is a vector quantity and represented by symbol J. Electric current density is usually expressed in amperes per square meter.
current; → density
data acquisition
الفنجش ِ دادهها
alfanješ-e dâdehâ
Fr.: acquisition de données
The process of controlling telescope operations during observation and obtaining data.
data; acquisition, from L. acquisitionem, from acquirere "get in addition," from → ad- "extra" + quærere "to search for, obtain."
Alfanješ, verbal noun of alfanjidan (variant alfaqdan) "to acquire, get," Bactrian αλφανζ "to acquire," Sogdian δβ'yz "to acquire, gain, get" (Cheung 2007); → data.
de Sitter Universe
گیتی ِ دوسیتر
giti-ye de Sitter
Fr.: Univers de de Sitter
Fr.: décomposition
The process or the state of breaking down a physical entity or an organic material.
From → de- + → composition.
cagâli (#)
Fr.: densité
The amount of any quantity per unit volume. The mass density is the mass per unit volume. The energy density is the energy per unit volume; particle density is the number of particles per unit volume.
See also:
charge density, → column density, → critical density, → current density, → density fluctuation, → density parameter, → density profile, → density wave, → density-bounded H II region, → density-wave theory, → electron density, → energy density, → flux density, → magnetic flux density, → maximum density of water, → neutral density filter, → nuclear density, → number density, → optical density, → period-mean density relation, → Planck density, → potential density, → power spectral density, → probability density function, → radio flux density, → relative density, → specific density, → spectral density, → surface density.
Noun form of → dense.
density cusp
تیزهی ِ چگالی
tize-ye cagâli
Fr.: cuspide de densité
A localized increase in number of → stellar black holes near a → supermassive black hole predicted by models of galactic → stellar dynamics (Bahcall, Wolf, 1976, ApJ, 209, 214). Same as → stellar cusp.
density; → cusp.
density fluctuation
افتاخیز ِ چگالی
oftâxizhâ-ye cagâli
Fr.: fluctuations de densité
In the early Universe, localized enhancements in the density of either matter alone or matter and radiation. According to models, very small initial fluctuations (less than 1 percent) can lead to subsequent formation of galaxies.
density; → fluctuation.
density of an element
چگالی ِ بنپار
cagâli-ye bonpâr
Fr.: densité d'élément
density; → element.
density parameter
پارامون ِ چگالی
pârâmun-e cagâli
Fr.: paramètre de densité
One of the four terms that describe an arranged version of the → Friedmann equations. They are all time dependent.
1) For matter: Ωm = 8πGρm/(3H2), where G is the → gravitational constant, ρm is the mean matter density, and H the → Hubble parameter. The matter density parameter is also expressed as Ωm = ρmcrit, where ρcrit is the → critical density.
2) For radiation: Ωr = 8πGρr/(3H2), where ρr is the radiation equivalent of matter density. This parameter is also expressed as Ωr = ρrcrit.
3) For the → cosmological constant: ΩΛ = Λc2/(3H2). Similarly, ΩΛ = ρΛcrit, where &rhoΛ = Λc2/(8πG) is sometimes referred to as the density of → dark energy.
4) For the → curvature of space-timeΩk = -kc2/(R2H2), where k is the → curvature constant and R the → cosmic scale factor.
Note that: Ωm + Ωr + ΩΛ + Ωk = 1, and Ωtotal = Ωm + Ωr + ΩΛ = 1 - Ωk.
density; → parameter.
density profile
فراپال ِ چگالی
farâpâl-e cagâli
Fr.: profile de densité
1) A → profile representing the → density of a quantity.
2) A → profile representing the distribution of stars as a function of their number in a region.
density; → profile.
density wave
موج ِ چگالی
mowj-e cagâli (#)
Fr.: onde de densité
density; → wave.
|
__label__pos
| 0.973157 |
Old and famous pastry in the capital
Pastry is a dough of flour, water and shortening (solid fats, including butter or lard) that may be savoury or sweetened. Sweetened pastries are often described as bakers’ confectionery. The word “pastries” suggests many kinds of baked products made from ingredients such as flour, sugar, milk, butter, shortening, baking powder, and eggs.
|
__label__pos
| 0.961956 |
The meaning of your relationship is incredibly personal and can depend on a variety of factors. A few relationships are long-term, such as marital life, and some are just platonic. For instance , platonic human relationships do not have a similar meaning pertaining to both parties. The goal of a romance is to have a similar goals, and it must be based upon shared beliefs. While a few can have different relationship types, a platonic one can have different meaning.
Associations can be between people, such as a husband and wife. A few relationships will be between siblings. In other instances, a marriage is known as a partnership. A business or business can be within a relationship in the event that they are working over a common goal. However , connections are more than the romantic relationship. Also, they are a dedication between two people. Frequently , they are mutually beneficial, plus they should be taken seriously.
Some people imagine a romantic relationship in a passionate sense. The word can make reference to an ongoing passionate or platonic association. This type of relationship will involve emotional and physical intimacy. It includes a determination and can be monogamous. Other forms of intimate relationships may be nonmonogamy or perhaps ethical. Regardless of the type of romantic relationship, it entails some level of intimacy. When considering a new spouse, it is important to remember the meaning in the word. Make sure you take the relationship critically, even if it is just for friendship.
If you wonder what a marriage means, there are various definitions that are offered online. Several definitions will be specific to certain types of associations. The primary aim of a romantic relationship is to carry happiness and a fulfilling life. If you are in a partnership, you must find the correct partner. In any other case, your new romance is a waste of energy. A good spouse will admiration and enjoy your needs, and yours will be the same.
Connections have different meanings. For example , a relationship among two people calls for two people within a close rapport. This is considered a marriage, but it could also refer to a brother and sister. It is also a business romantic relationship between two businesses. When ever two people promote a common target, they have a marriage. It can be a family group relationship, a friend relationship, or a professional an individual. A person may be relevant to a person through blood or matrimony.
When two people happen to be in a romantic relationship, they are psychologically involved. They share a particular bond that is often referred to as a “relationship. inches They are linked in a way that is exclusive to these people. It can be a family unit relationship, a friendship, or a business alliance. The more important factor is how you define a relationship. And what you select to call an associate a regards will depend on your individual situation.
In a relationship, two people are emotionally involved. They write about a common my university. They are in a relationship. They share a bond that is certainly similar to regarding a good friend and a sister. They have a family connection. They publish a common rapport. Oftentimes, a relationship is actually a family and a friendship may be a marriage. A household is a family and the words “relationship” and “friendship” indicate different things in order to people.
A relationship is a bond between two people. It might be between a husband and wife or a sister and a good friend. It can also be among two businesses. Some associations are very significant, while others can be casual. Regardless of how close a relationship can be, the two people in it must be appropriate. When you’re in a relationship, you must be able to trust each other. Any time you could have trust issues, this is an indicator of a healthful relationship.
A romance can be nearly anything between two people. In a relationship, the couple is in a relationship. A marriage is a marriage between a couple. A marriage can be a good friend and a sister. It can be a husband and wife. A business relationship is among two firms working together. In cases like this, the partners have a special bond. The partnership is a good and healthy bond. It is just a very distinctive bond between two people.
What Does a Marriage Mean?
|
__label__pos
| 0.712096 |
Consolidation benefits companies with stable balance sheets and large amounts of cash flow. This lowers their cost of borrowing and increases the amount of money they can borrow to finance acquisitions. Consolidation decreases competition and increases the price of the products, which increases the margins for the remaining firms in the industry. Consolidation also brings economies of scale in acquiring inputs and producing outputs of the product. Global consolidation will benefit companies with dominance of large local markets. … "Global Consolidation" has a significant impact, so an analyst should put more weight into it. "Global Consolidation" will have a long-term positive impact on the this entity, which adds to its value.
|
__label__pos
| 0.906264 |
Winged Sakura: Mindy’s Arc 2
Experience a breathtaking Tower Defense game like no other. Strategically plan and overwhelm enemies by materializing time ticking units onto the battlefield or by casting powerful spells. Equip units with powerful items to unleash their fullest potential.
Winged Sakura: Endless Dream
Winged Sakura: Demon Civil War
Winged Sakura: Mindy’s Arc
|
__label__pos
| 0.824457 |
Cooking with children
Cooking is a sensory experience for children, providing these sensory experiences can give them confidence to explore the world freely. It is a chance to practice self-regulation and their ability to contain their impulses. Through following recipes, remembering ingredients, substituting ingredients, weighing and measuring children are working on their executive functioning skills. These are mental skills such as as working memory, flexible thinking and self-control. We use these skills daily to learn, work and manage our daily lives.
From birth children use their senses to make sense of the world around them. They explore through touching, tasting, seeing, hearing, smelling and moving.
Both adults and children retain more information when their senses are engaged. Many peoples favourite memories are associated with our senses eg the smell of a perfume, the taste of grandmas baking or a song you sang in assemblies in primary school. So when your senses are stimulated with those familiar sounds and smells your brain triggers a flashback memory to those special times.
Providing opportunities for children to explore their world through cooking helps to build nerve connections in the brains pathways as it is a form of sensory play. This leads to childrens ability to complete more complex learning tasks and supports language development, motor skills, problem solving skills and social interaction. Engaging in conversation with your child, describing what they are doing, asking thm questions about where the food comes from will all encourage their language and thinking skills. Fine motor and eye-hand coordination skills are developing by chopping, mixing, squeezing, and spreading. Cooking encourages children’s thinking, problem-solving, and creativity.It also allows children the opportunity to use the knowledge they have and apply it by counting,measuring, following a sequence, following directions, and cause and effect.
Two-year-olds are learning to use the large muscles in their arms and are able to do activities such as:
o Scrubbing vegetables and fruits
o Carrying unbreakable items to the table.
o Washing and tearing vegetable greens.
Three-year-olds are learning to use their hands and should be able to do activities such as:
o Pouring liquids into batter
o Mixing batter or other dry and wet ingredients together.
o Shaking a drink in a closed container.
o Spreading butters or spreads.
o Kneading dough.
o Washing vegetables and fruit.
o Serving foods.
o Putting things in the bin after cooking.
Four and five-year-olds are learning to control fine motor muscles in their fingers and some activities support this stage of development such as:
Screenshot 2020-11-26 at 17.38.12.png
o Juicing oranges, lemons, and limes.
o Peeling some fruits and vegetables.
o Scrubbing fruits and vegetables.
o Cutting some fruits and vegetables with a child safe utensil.
o Measuring dry ingredients.
o Mixing ingredients.
o Setting the table.
o Cleaning table after cooking.
o Clearing table.
Children are developing large muscles in their arms: They will enjoy stirring and stirring and stirring. From around 2 years old, a child naturally imitates circular strokes as part of their normal physical development. So, let them stir at every opportunity.
Here are some ways to encourage arm muscle development through cooking:
Stirring: flour, eggs, pancake batter, gelatin making, etc.
• scrubbing potatoes and vegetables
• cleaning the cutting board: Give them a washcloth and some lukewarm water with the cutting board in the sink. They'll have a blast rubbing the wet washcloth up and down the cutting board to clean it.
• pouring from large measuring cups into a bow
Young children enjoy "patting" and "pressing": From being fascinated with "patty-cake" chants at an early age, children still love to pat and press.
I'm sure you'll recognise your cildren doing this at the park: scooping up rocks or sand, piling them up, and patting the top into different shapes. Well, here's some suggestions to bring the "patting" inside:
• packing down brown sugar in the measuring cup
• gently pressing a fork on top of peanut butter cookie dough on the cookie sheet
• patting to level off the top of a cup of sugar
• patting and pressing on pizza dough
• pressing down with a cookie cutter on rolled sugar cookie dough
All children love to dip - and this develops arm muscle skills too! It takes a lot of coordination to dip! Getting the food in the dip, then moving the arm and somehow getting it into your mouth. If it wasn't difficult, they wouldn't get food all over their face! So, unless your child always has a clean face when he or she is done eating, here's some dipping opportunities:
• dipping a spoon in the emptied batter bowl to clean out the goodies
• dipping fruit in a fruit dip or chocolate (like frozen bananas or strawberries)
• dipping chicken or fish in a batter for you to cook
• dipping the bread in French toast mix
|
__label__pos
| 0.816517 |
Explore BrainMass
Explore BrainMass
CMOS inverter circuit
The circuit shown in Figure B2 (in the attachment) is of a CMOS inverter driving a capacitive load. VDD represents logic level "1" and zero volts logic level "0". M1 is an nMOS device and M2 is a pMOS device.
Calculate the approximate switching time that is obtained if the output is loaded by a capacitance, CL, of 0.2 pF due to interconnections and the inputs of other gates.
Please refer to the attachment for full details.
Solution Summary
Solution cites the relevant formulas used in computation and briefly explains the steps in computation.
|
__label__pos
| 0.895971 |
What are the similarities between Orthodox Christianity and Roman Catholicism?
There are seven sacraments in both the Roman Catholic and Eastern Orthodox churches. These include baptism, confirmation, penance, communion, marriage, holy orders and the anointing of the sick. Today, the practice of these sacraments in both churches is nearly identical in form and content.
What are the similarities and differences between Orthodox Christianity and Roman Catholicism?
The Roman Catholic Church is more focused on law, logic and the central authority of the Pope, while the Eastern Orthodox Church is more concerned with maintaining the mystery of faith and governing through consensus.
How are Catholic and Orthodox similar?
What are the similarities between Catholicism and Christianity?
IT\\\'S FUNNING: What does the Bible say about standing on the promises of God?
What are the major differences between Christianity and Catholicism?
What are the main differences between Roman Catholic and Greek Orthodox?
2. Roman Catholics deem the Pope as infallible, while Greek Orthodox believers don’t. 3. Roman Catholics believe that Mary is free from original sin, while Greek Orthodox believers don’t.
Can you be both Catholic and Orthodox?
Why did Catholic and Orthodox split?
Do Orthodox priests marry?
The vast majority of Orthodox parish clergy are married men, which is one of the major differences between the Orthodox and Catholic Churches; however, they must marry before being ordained.
What is the difference between Catholic and Roman Catholic?
IT\\\'S FUNNING: How is Catholic Charities funded?
Do Christians believe in the Virgin Mary?
|
__label__pos
| 0.953762 |
What is the point of gerrymandering?
What is the point of gerrymandering?
The primary goals of gerrymandering are to maximize the effect of supporters’ votes and to minimize the effect of opponents’ votes. A partisan gerrymander’s main purpose is to influence not only the districting statute but the entire corpus of legislative decisions enacted in its path.
Why is gerrymandering bad quizlet?
Why is gerrymandering bad? Gerrymandering means to draw congressional districts to the advantage of the political party that controls the State’s legislature. This is a tactic that does not give equal representation to minority groups in the Congress.
What is the effect of gerrymandering quizlet?
Protects incumbents and discourages challengers. Strengthens majority party while weakening minority party. Increases or decreases minority representation.
Why does gerrymandering occur quizlet?
why does gerrymandering occur? -To manipulate party lines to benefit a candidate.
How does the House conduct business quizlet?
How does the House conduct business? – To introduce a bill in the House, representatives drop it into the Hopper (mahogany box): Once introduced, the speaker sends it to the appropriate committee for, discussion and review. About 10-20% of bills are put onto the calender and brought to the full house for a vote.
How does a bill move through the House of Representatives quizlet?
Bill is sent to the standing committee in the house. Committees are made up of members from the house to discuss the bill. (Optional) Bill can go to a subcommittee, a committee formed for this bill. If the senate passes the bill, it goes to the president.
How does a bill move through the House?
When both houses approve a bill where does it go next?
You already voted!
You may also like these
|
__label__pos
| 0.711399 |
Pol 201 american national government (ack1624e)- 10 multiple choice
1. Which of these types of communication is generally most effective at educating the electorate about candidates?
1. campaign-related news coverage
2. Internet browsing
3. campaign communication
4. Facebook posts
2. During what time period was the highest percentage of Americans eligible to vote?
1. Colonial times (mid-1700s)
2. Pre-Civil War (mid-1800s)
3. Gilded Age (early 1900s)
4. Today (early 2000s)
3. Which of these communication avenues is not regulated by the Federal Communications Commission (FCC)?
1. Radio
2. Internet
3. Television
4. Satellite
4. Which of the following is considered a social policy?
1. Welfare
2. Healthcare
3. Retirement
4. All of the above
5. This principle of U.S. policy presumed that neither superpower would be the first to launch a nuclear attack because such an attack would lead to certain destruction.
1. Mutually Agreed Decision
2. Modern Agreed Diplomacy
3. Mutually Assured Destruction
4. Mass Attack and Defense
6. What power does a news media personality not have when he/she moderates a televised debate?
1. They determine which candidates are present.
2. They ensure that candidates can make rebuttals to which they are entitled.
3. They ensure that participants do not go over their allotted time.
4. They write the debate questions.
7. What type of policy lowers interest rates to allow individuals access to more money for large purchases?
1. Fiscal
2. Stimulus
3. Discount
4. Monetary
8. Are newspapers allowed to endorse candidates?
1. Yes, the press is completely free to write whatever they want, wherever they want.
2. Yes, as long as they limit their endorsement to their editorial pages.
3. No, the Federal Communications Act of 1934 eliminated this option.
4. No, newspapers must give “equal time” to all candidates.
9. Policy in the United States is guided by which of the following basic goals?
1. Equity
2. Efficiency
3. Liberty
4. All of the above
10. What is the primary way that government officials communicate with citizens?
1. Through the media
2. Through legislation
3. Through polls
4. Through focus groups
Click Here to Make an Order Click Here to Hire a Writer
|
__label__pos
| 0.968277 |
This is “Presque Vu,” by Paul Clowney. This fantastic arrangement of multiple colored and decorated panels combined creates a great example of Ebu-Arts!
detail from "Presque Vu"
Each individual piece can be appreciated as its own work, or together they can be interpreted as a universe of art! Just as cells form together to create life or stars and planets to create a solar system, Ebu-Arts combine smaller individual works to create an Ebu-Art assemblage.
|
__label__pos
| 0.96529 |
From Glossary of Meteorology
1. (Also called terrestrial magnetism, geomagnetic field.) The earth's magnetic field or the geophysical phenomena caused or affected by this field.
2. The scientific study of the earth's magnetic field, including its variation in space and time, and its relation to other geophysical phenomena (e.g., aurora).
Geomagnetism belongs to the same family of earth sciences as geodesy and geomorphology.
|
__label__pos
| 0.998845 |
What is a good base for a fire pit?
What is a good base for a fire pit?
Sand. Sand is usually regarded as one of the most adaptable materials for the bottom of fire pits; it is inexpensive, simple to install, and offers a great heat barrier. Sand absorbs heat and distributes it evenly around the pit. Sand shields the metal bowl from the high heat that a fire may produce. This shield helps prevent damage to the bowl itself.
If you plan to use your fire pit often, or want it to be suitable for cooking food, then a solid surface underneath is recommended. This will help prevent any movement of the ground causing the pit to become uneven or unstable.
The best base material for a fire pit should be able to withstand heat without melting or burning. Wood is the standard choice for a base material, but other options do exist. For example, concrete bases are available that can handle heat up to 500 degrees F. (260 degrees C).
The type of fuel you use affects the look and longevity of your fire pit. Woods such as maple, pine, and oak burn longer and hotter than fruitwoods such as apple and pear. Garden-fresh vegetables also make excellent additions to your fire. They add color and flavor to your fire, while giving off carbon dioxide which makes it easier to breathe. Just make sure you avoid plants with thorns or spines since these could end up in your fire!
Fire pits are becoming more popular every year.
Should you put sand in a fire pit?
A coating of sand is intended to shield the metal at the bowl's bottom from the high heat of the fire. The sand absorbs the heat and uniformly distributes it across the pit's foundation. Heat can get concentrated in one region if there is no sand. A hot spot can cause an aluminum bowling ball to break or the metal base to warp.
There are two types of fire pits: open and closed. With an open pit, you can see the flames burning inside it. This is not recommended for fire-sensitive materials such as wood or cloth. With a closed pit, you cannot see what's happening inside it; therefore, it is safer to use with fire-sensitive materials. Both types of pit can be used safely with dry material such as leaves or wood chips. However, if material such as gasoline, oil, or other flammable liquids is present, then an open pit is not safe to use.
It is important to remember that fire pits should not be used as cooking surfaces or for heating food. They are designed for visual enjoyment and to provide heat for melting snow, ice, or water. Cooking foods on an open flame or in a pot placed on top of an open fire pit may lead to burns from hot pans or pots, smoke inhalation, or both.
Fire pits are commonly found in backyards around the country.
What should I look for when buying a fire pit?
Materials When selecting a fire bowl, choose one that will last and extend the life of your fire pit. Cast aluminum rusts less easily than copper, which can discolor. Cast iron is a sturdy yet heavy material. It can take the heat of a wood or charcoal fire for a long time without warping or deteriorating. Steel is light and will not get too hot in contact with the flames. It also takes paint well if you plan to colorize your fire pit.
Curing Area Fire pits must be allowed to "cure" before use. This means that they must be left undisturbed for at least 24 hours after installation before firing them for the first time. The curing process allows any excess moisture in the soil to evaporate, preventing groundskeepers from getting water on their lawn when using the fire pit.
Safety Glasses, mittens, and protective clothing are recommended when using a fire pit. Children should always be accompanied by an adult when near a fire. The heat from a fire can be dangerous to children's lungs because they breathe more frequently than adults do so they're exposed to more oxygen than adults are used to breathing. Even though children cannot feel heat, it can still hurt them if they come in contact with it. The skin can be burned if they crawl through burning coals or sit in ashes.
Should I put stone at the bottom of my fire pit?
What do you put at the bottom of a fire pit? You'll want to start with a layer of sand at the bottom of the pit, and then top the sand with gravel, lava rocks, fire pit glass, paving stones, or even bricks for your fire pit. Alternatively, you can simply use dirt. However, make sure that it is not soil because soil will contain moisture which may lead to pooling and other issues related to water safety.
The reason you want to put something under the sand or dirt is so that anything that falls into your pit won't be able to reach any combustible material below. For example, if you were to place a piece of wood in your pit that thing would most likely burn until it reached the sand or dirt then stop. This is called "extinguishing" your pit and keeping your children safe while they are using it.
You should also put some type of barrier around your pit to prevent animals from getting into it. This could be as simple as putting up a fence or gate but it could also be something more permanent such as installing a fence post/railroad tie fence.
Finally, you will want to learn how to use your pit safely. This means learning how to extinguish it properly and knowing how to avoid causing an internal explosion in the process. An internal explosion is when carbon dioxide (which is found in almost all humans) gets released into a confined space rapidly causing it to explode.
About Article Author
Linda Townsend
Related posts
|
__label__pos
| 0.899828 |
This page cannot be viewed in frames
Go to page
Population of Roman Empire
This post is also available in: Polish (polski)
Population of the Roman Empire in the middle of the 2nd century CE According to the Polish historian Wiesław Suder – “Census populi. Demografia starożytnego Rzymu”.
Number of inhabitants
Number of inhabitants
Spain 6.6 million Africa 4.2 million
Galia 9.2 million Cyrenaica 0.6 million
Germania 1.2 million Egypt 6 million
Italia 8.7 million Syria 4 million
Kingdom 1.0 million Asia 7.5 million
Danubian provinces 4.1 million TOTAL 55.9 million
Below is a demographic record of the Roman Empire from the reign of Constantine the Great to the reign of Theodosius the Great – so the entire 4th century CE.
Number of inhabitants
Eastern part
Number of inhabitants
Galia 5 million Moesia and Thrace 2.5 million
Spain 4 million Greece and Macedonia 3.5 million
Italia 6 million Asia Minor 15 million
Sicily, Sardinia and Corsica 0.25 million Syria, Palestine and Mesopotamia 6.5 million
Africa, Numidia and Mauritania 3 million Egypt 6.5 million
Recja, Noricum, Panonia and Dalmatia 3 million Cyrenaica 0.5 million
Kingdom 0.75 million
Total 22 million Total 34.5 million
The first credible records of the population of the Roman state appear in the 4th century CE. The earlier period is marked by numerous indications that suggest that there was a significant demographic expansion in areas of intense urban development, such as in Greater Greece and Etruria, as opposed to the demographic situation in the Apennine Peninsula and the Po plain.
about 600 thousand. people (this is a hypothetical number, resulting from the multiplication of approx. 150 thousand adult men subject to the census by four), with an average of 85 people per sq. km.
In 265 BCE the Roman Republic already numbered 24 thousand sq km, with a population of 1,168,936 (multiplied by four 292,234 adult males in the previous year’s census) and an average of 49 people per sq km. the population continued to migrate to the Latin colonies, which were autonomous from Rome. In 225 BCE the average number of people controlled by Rome dropped to as much as 27 people per square kilometre. To this number should be added the population of allied cities and peoples – then we get about 132 people per square kilometre with a population of 3.6 million people. Rome during the Second Punic War clearly lost from the demographic growth; however, new Latin colonies were still established.
At the end of the 2nd century BCE, the number of adult males reached 400,000, reaching 910,000 in 90-88 BCE when the entire Peninsula was absorbed by Rome. (data from the census from 69 BCE). The total population can only be defined if we also include slaves and peregrini, that is, immigrants from abroad. At that time, this number is around 4 million people. The territories within the republic, including Padania Dolna, amounted to about 165,000. km sq, where there were 22.5 people per 1 sq km.
Civil wars have led to a significant reduction in the population. It was only the victory of Octavian Augustus in 31 BCE. at Actium and the end of the wars brought about a demographic improvement. This was achieved mainly through the settlement of veterans in rural areas and urban development, especially in the Po Plain.
Census from 14 CE recorded 5 million citizens of Rome (including women with children aged 1-2), not including the approximately 500,000 legionaries, officials and traders who lived in the provinces. However, the list included peregrini in the number of approx. 500 thousand. and slaves (about 1 million), which gives the population of about 6 million people living in the lands from the foothills of the Alps to the borders of Calabria. It is an area of approx. 220 thousand. km sq, with an average of 27 inhabitants per sq km.
Urbanism, developing through the entire era of the Antonin dynasty, ultimately stimulated demographic expansion. At the end of the 2nd century CE, the effects of a serious plague in many regions were felt, but e.g. in the 3rd century CE, the population growth is visible, despite the serious political and military crises at that time, as well as in the 4th century CE, which is associated with urban and economic growth. Any other figures, even approximate ones, are not extractable due to the lack of any numbers from censuses that have not been conducted anymore.
• Wiesław Suder, Census populi. Demografia starożytnego Rzymu
IMPERIUM ROMANUM needs your support!
News from world of ancient Rome
Subscribe to newsletter!
Roman bookstore
Check out bookstore
Spelling error report
The following text will be sent to our editors:
|
__label__pos
| 0.875194 |
Moment of Trance 294
Take a moment.
Better yet, take two.
Take another moment.
You are deserving.
You are worthy.
You are loved.
Follow the tunnel.
This slow-paced animation will allow you to achieve the relaxation you need.
Watch and follow, follow, follow.
Watch and follow until you have given yourself time enough to recharge.
Leave a Reply
|
__label__pos
| 0.772748 |
In summary, TST with flavopiridol followed by ara C and mitoxantrone exhibits me
In summary, TST with flavopiridol followed by ara C and mitoxantrone exhibits meaningful and reproducible medical activity in AML with various poor chance biologic capabilities. In turn, the capability to perform BMT in individuals high throughput screening individuals who reach a CR translates into prolonged OS and DFS from the vast majority of eligible patients. Ongoing advancement of this regimen incorporates comparison of bolus vs.
hybrid bolus infusion flavopiridol administration with regards to medical and pharmacologic measurements, aimed at clarifying an optimal delivery tactic for more comparative reports in this newly diagnosed, poor chance AML affected person population. A range of indolent to moderately aggressive B cell neoplasms are typically responsive to, but not cured by, therapies that consist of standard DNA or microtubule targeted cytotoxic agents just like alkylating agents, purine nucleoside analogs, and vinca alkaloids, corticosteroids, monoclonal antibodies, radio labeled monoclonal antibodies, radiation, and new agents including the proteasome inhibitor bortezomib.
These neoplasms will also be usually responsive to myeloablative drug and or radiation treatment followed by autologous or allogeneic stem cell infusion, with occasional patients obtaining cures with this particular technique.
Non myeloablative remedy followed by allogeneic stem cell infusion can be a promising investigational method. However, Voriconazole although several such sufferers possess a vast array of therapeutic alternatives, couple of of these are probably curative.
The boronic anhydride proteasome inhibitor bortezomib was the initial of its class to enter the clinical arena. Many mechanisms are actually invoked to explain its toxicity towards transformed cells, like inhibition of NF ?B, anti angiogenic effects, and up regulation of pro apoptotic proteins, between others. The most frequently employed bortezomib schedule is one.three mg m2 IVP on days one, 4, eight, 11, with asthenia, gastrointestinal toxicity, anemia, and thrombocytopenia representing the commonest toxicities.
Bortezomib is approved for use in patients with many different myeloma and in individuals with refractory mantle cell lymphoma. Alvocidib was the primary CDK inhibitor to enter the clinic. Like bortezomib, alvocidib also exerts pleiotropic actions. As well as inhibition of proliferation, alvocidib acts as a transcriptional repressor by using inhibition within the CDK9 cyclin T transcription complex. This will cause down regulation of numerous brief lived proteins which include Mcl 1and cyclin D1 that have been implicated during the survival and proliferation of many myeloma and mantle cell lymphoma cells. In addition, alvocidib, by inhibiting IKK, can interrupt the NF ?B pathway, analogous for the results of bortezomib.
Leave a Reply
|
__label__pos
| 0.758445 |
January 21, 2022
Wolf Gang Warfare Results in Killing of Alpha Wolves
“During that study, they found 24 dead wolves while checking in on the packs. Wolves were the killers in seven of those deaths. Five happened at the boundaries of two territories; two happened during clashes between a resident wolfpack and another pack on what biologists call an “extra-territorial foray,” when wolves for unknown reasons head deep into another pack’s turf.
“Almost every time, it was dominant wolves that died,” Gardner says of the seven wolves killed in clashes with other wolves.
From what he has seen, battles between packs often involve head-to-head combat between alpha wolves.”<<<Read More>>>
|
__label__pos
| 0.938075 |
Let's Talk: 'Fake News' is a Reckless Phrase
Posted at 8:31 PM, Mar 16, 2018
and last updated 2018-03-16 23:31:53-04
SAN DIEGO (KGTV) - President Trump was in San Diego Tuesday and once again used the term "Fake News" referring to the media. It's a phrase that can be thrown around recklessly and a viewer attempted to use the expression to describe 10News in a story we covered Wednesday. That subject led our editorial team to address the topic in this week's 'Let's Talk' segment.
|
__label__pos
| 0.999267 |
Black History Month 2022
Bass Reeves Died
Muskogee, Oklahoma - Bass Reeves ('The Real Lone Ranger') was the 1st black United States deputy Marshal, in the west. Reeves was one of the most colorful, adventurous, and accomplished deputies of his time.
Born in 1838, Reeves was born in slavery. During the Slavery War, his enslaver joined the Confederate Army and brought Reeves. During the war, Reeves escaped. He stayed in Indian Territory. There Reeves learned the Creek and Cherokee languages.
Once the (13th) Thirteenth Amendment abolished slavery, Reeves returned to Arkansas. There he farmed, until 1875. Due to his language skills, Reeves was recruited for a deputy Marshal job.
Reeves served primarily Arkansas and the Oklahoma Territory. During his long career, Reeves made more than 3,000 arrests. Many were dangerous criminals. Reeves shot and killed 14, in self-defense.
Tulsa Race Riot Began
Tulsa, Oklahoma - Two days of murder, riots, and chaos began in Tulsa. At the time, only 49 were counted as dead. 36 were black and 13 were white. Actual deaths range from 75-300. It all began because of a rumor.
Monday, May 30, 1921, two teenagers worked at a store in the Drexel building. Dick Rowland was a 19 year-old, black male. He worked on boots. Sarah Page was a 17 year-old, white female. She was an elevator operator.
The two were touching each other in the elevator. A white man saw the two. Page screamed.
On May 31, 1921, Rowland was arrested at his home. He was charged with attempted rape. By 7:34 p.m., rumors had spread through the white community. It was started by white lawyers and newspapers. This included the Tulsa Tribune.
As rumors spread, hundreds of whites came to the courthouse. They were there to lynch (murder) Rowland. The white sheriff Willard M. McCullough was in charge of the case.
McCullough blocked the courthouse doors. He was inside with twenty-five (25) other police. They were on the top floor of the courthouse.
By 9:00 p.m., about 100 black people came to the courthouse. They were armed. Many were former World War 1 veterans. Some were dressed in military uniform. McCullough told them all was under control.
By 10:00 p.m., the armed black men returned. By this time, there were thousands of whites at the courthouse. Unarmed whites looted nearby gun stores, pawn shops, and sporting goods stores. The whites stole guns and ammunition.
The white mob shouted 'bring the rope.' Racial slurs were hurled at the black men. The whites wanted to murder all the black men at the courthouse. The race riot was under way.
After many deaths, Rowland was never tried for a crime. He was not harmed in the riot.
First Aerial Bombing
Tulsa, Oklahoma - Whites made airstrikes against black people. This was the second day of The Tulsa Race Riots.
Early Wednesday morning, whites flew airplanes over the Greenwood District of Tulsa. From the air, whites shot rifles and made aerial bombing runs against black people.
The bombs landed on buildings and homes. The bombers aimed at fleeing families. The aircraft was privately owned. Police participated. The police claimed it was to prevent a 'Negro uprising' in the town.
One witness made this report. There were 'a dozen or more' planes. They circled the neighborhood. The planes dropped 'burning turpentine balls' on an office building, a hotel, a filling station and other buildings. Men fired at black people. They were gunned down in the street.
This was the first aerial bombing in the United States.
Oklahoma City Bombing,Alfred P. Murrah,Alfred,Murrah,Federal,Building, Federal Building
Oklahoma City, Oklahoma - Timothy McVeigh committed the greatest domestic terrorism act until the 9/11 event of 2001. McVeigh was responsble for the destruction of the Alfred P. Murrah Federal Building. It resulted in the deaths of dozens of black people and a total of 168 dead and 680 injured.
Among the dead were more than a dozen children. Some were infants. It was suspected that McVeigh targeted the building specifically to murder black women and children. This event exposed the Michigan Militia as a domestic terrorist, white supremacist organization.
McVeigh enlisted in the military at age 20, in 1988. He served in Iraq. McVeigh bragged about decapitating an Iraqi soldier with cannon fire.
On June 11th, 2001, McVeigh was executed by lethal injection.
Cop Daniel Hotzclaw Raped Black Women
Oklahoma City, Oklahoma - Daniel Holtzclaw was convicted of 18 of 36 counts of rape. Also included were sexual battery, stalking, and forcible, oral sodomy. Holtzclaw was an active worker of the Oklahoma City Police Department went he committed the crimes.
13 women testified against Holtzclaw. All of them were black women.
Holtzclaw was sentenced to 263 years in prison, in Oklahoma. Holtzclaw was 28 years of age, at the time.
Police worker Daniel Holtzclaw Convicted As A Serial Rapist
|
__label__pos
| 0.713949 |
ReNamer:Managing rules
From den4b Wiki
Revision as of 07:35, 4 July 2009 by Narayan (talk | contribs)
Jump to: navigation, search
Adding rules
• Click the AddRuleButton.png button,
• Click inside the Rules area
• Press the Ins key when the ReNamer window is active.
2. The Add Rule window pops up:
Select the desired rule.
Set the desired parameters, as explained in each rule.
4. Press the AddRuleButton.png button at the bottom of the window. The rule is added to the stack.The window stays open, and allows you to add more rules.
6. To close the window, press the File:CloseButton.png button at bottom (or the CloseWindowButton.png button at the top right corner).
Removing (Deleting) rules
Changing the order of the rules
1. Using the UpButton.png and DownButton.png buttons (they appear only when there are two or more rules in the pane)
2. Drag-and-drop any rule with mouse.
Editing rules
You can edit a rule using any of the following methods:
1. Double-click on it,
3. Select it and press ENTER.
A window similar to the Add Rules window appears. There are only two minor differences: The button at the bottom is titled Save Rule, and the rules list in the left pane is grayed out (because you are not supposed to select rules in this window.)
Change the parameters and options, and press the Save Rule button.
Selecting a rule
Selected rule File:SelectedRule.png
Unselected rule File:UnselectedRule.png
Only one rule can be selected at a time.
To select a rule, use any of the following methods:
2. Use the Up/Down Arrow keys on your keyboard to move the selection to another rule.
Marking and Unmarking a rule
So unmarking a rule is useful to temporarily disable the rule; without having to remove it from the Rules pane.
To mark/unmark the rules-
1. Click on the check box.
The reasons for unmarking a rule are:
2. You have a favorite set of rules that you use often. However, you need to remove a few rules in some cases. A trick is to save the superset of rules and reload them automatically each time you start ReNamer). Then in each session, unmark some rules.
|
__label__pos
| 0.928355 |
MCQs on Oral Histology - Dentin
# Dentinal tubules are :
A. Concave
B. Straight
C. S-Shaped
D. None of the above
# The cells that form secondary dentin are:
A. Cementoblasts
B. Fibroblasts
C. Odontoblasts
D. Osteoblasts
# Dead tracts in ground section appears as:
A. Dentinal tubules
B. Coarse fibril bundles arranged at right angle to the dentinal surface
C. Black in transmitted light and white in reflected light
D. White in transmitted light and dark in reflected light
# The organic lining of the calcified dentinal tubules is known as:
A. Lamina propria
B. Lamina lucida
C. Lamina limitans
D. Lamina densa
# Which of the following dentinal layers is more mineralized?
A. Peritubular dentin
B. Inter-tubular dentin
C. Dentinal tubules
D. Circumpulpal dentin
# The type of tertiary dentin which contains cellular inclusions is found in:
A. Sclerotic dentin
B. Mantle dentin
C. Predentin
D. Osteodentin
# The dentin adjacent to the dentinoenamel junction is called the :
A. Mantle dentin
B. Circumpulpal dentin
C. Predentin
D. Osteodentin
# Korffs fibres are seen in :
A. Mantle dentin
B. Secondary dentin
C. Reactionary dentin
D. Intradermal tubules
# Migration of odontoblasts into dentinal tubules occurs during :
A. Cavity preparation
B. Dehydration
C. Water irrigation
D. None of the above
# Tome's fibers are:
A. With out but not with in the dentin
B. Odontoblastic processes in dentinal tubules
C. Types of Sharpey's fibers
D. Originate from Tome's granular layer
See All Posts / Archives:
|
__label__pos
| 0.735335 |
Description is a fraudulent online tactic that exploits social engineering methods to trick users into accepting browser notifications from a potentially unsafe website. This tactic operates through the empty website, which shows the following message when visited:
' wants to Show notifications
Click Allow to confirm that you are not a robot!'
It is a misleading claim that only tries to imitate a legit CAPTCHA-verification test. Users who click on the 'Allow' button practically permit the fraudsters to send them advertising content. Any pop-up messages and other notifications generated by could contain malicious links or attachments that redirect users to other potentially dangerous places on the Internet.
We recommend deleting Alpeculian. top's permission to send you browser notifications from your settings menu. Undesired advertisements or banners appearing on your screen regularly also could signal an adware infection; therefore, you should scan your device through a reputable malware detection and removal tool.
|
__label__pos
| 0.723663 |
What is Heat Exchanger? – Complete Explanation
What is Heat Exchanger?
Heat exchangers are the equipment’s used for transfer of thermal energy (enthalpy) between two or more fluids. These fluids can be liquids, vapors or gases. It can be between a solid surface and fluid, between solid particulates and fluid, liquid to liquid, gas to gas, and liquid to gas at various different temperature, where T1 (fluid 1 temp) ≠ T2 ( fluid 2 temp) and in thermal contact. These fluids can be single or two phase, may be separated or in direct contact depending on the exchanger type. To increase the efficiency of the heat exchanger, there should be increment in the surface area of the wall between the two fluids and minimize the resistance of fluid flow through the exchanger.
Typically the process involves the heating and cooling of a fluid or evaporation and condensation depending upon the application and usage. In some other applications these are used to reject or recover heat, pasteurize, sterilize, crystallize, fractionate, distill or control a process fluid.
Selection of a particular type of heat exchanger depends on various factors such as –
• Nature of the two fluids
• their pressure
• their temperature
• flow rate
• Required heat transfer rate
Therefore, it is important to understand the basic principle of a heat exchanger and which heat exchanger can be used according to the required condition.
Basic Working Principle of Heat Exchanger
Irrespective of their design all heat exchangers work under the same roof. These are the 3 laws of thermodynamics, namely the zeroth, First, and Second law of thermodynamics. These laws facilitate the transfer or exchange of heat from one fluid to another.
A heat exchanger is a device that includes 2 or more fluids that transfer the heat from one medium to another. In general, one of the fluid is significantly at a high temperature compared to another.
So now we have a cold and hot fluid. As when the two try to move towards the stability the heat exchanger enables the heat to pass from hot fluid or medium to cold fluid either directly or indirectly.
As a result in the end the hot fluid becomes a little colder and cold fluid become a little hotter.
How Heat is Exchanged- Mechanism of Heat Transfer
Heat can be exchanged or transfer through mainly 3 process
1. Conduction-
It is a process by which heat is transferred from high vibrating molecular temperature to low vibrating molecular temperature which is in physical contact with each other. The former is at higher and later is at lower kinetic energy. This most preferably takes place in solid due to the collision of molecules. These are also known as heat conduction or thermal conduction. E.g. – Hot cup of tea is placed on the table. Heat transfer from cup to table.
2. Convection –
This heat transfer occurs within the fluids because of the density difference. It happens when fluid moves and carries the thermal energy away. E.g. – Boiling of water. The hot water molecules at the lower surface heat up and become lighter and move upward while at the same time, the dense water molecules move from top to bottom.
convection equation
3. Radiation –
It is a process by which heat is transferred through electromagnetic waves. It doesn’t require any medium for heat transfer and can be transferred in a vacuum or any transparent medium. The rapid movement of charged protons and electrons generate these waves.E.g.- Microwave radiation emitted in the oven.
It can be calculated by Stefan Boltzmann’s law.
Radiation eguation
Fluids used in the Heat Exchanger
A heat transfer fluid can be liquid or gas depending upon the application or the type of heat exchanger and material being used. It can be air, water, oil, water glycol, chlorinated salt water, acids, etc.
Before fluid selection there are mainly three different parameters which need to be looked out;
Which involves their physical state, chemical properties, and thermal properties. If we elaborate this more , a fluid needs to be selected based on their temperature, alkaline or acidic, flow rate, pressure, Phase change, etc.
Water as fluid- It is the most common type of fluid used in heat exchanger because it is cheaper, have high heat capacity (the amount of heat a fluid can hold without changing its temperature), and are easy to transport.
Oil, synthetic hydrocarbons or silicon based fluids are used for high temperature ranges.
Gases such as water vapor, Nitrogen, Argon, Helium, Hydrogen are used where liquids fluids are not suitable. so, as to get the efficient working conditions of heat exchanger using gases as a fluid, pressure is elevated, to increase the flow rate of gases.
In general, the Boiling point and heat capacity should be high. Because high boiling points prevent the fluid from vaporizing at larger temperatures and high heat capacity enables a small amount of fluid to transfer large amount of heat very efficiently.
Some basic characteristic of fluids
1. Low viscosity- helps in the easy flow of fluid and reduces the pumping cost.
2. Non- Corrosive- the flowing fluid should avoid the corrosion on the walls of the tube which reduce the maintenance cost.
3. High thermal diffusivity and conductivity
4. High boiling point and low freezing point- helps to remain in the same phase while exchanging heat.
Material Selection for Heat Exchanger
Material selection is based on various factors such as on application, thermal efficiency, corrosion resistance, durability, cleanability, and cost & availability of the material.
There are various materials such as metals, ceramics, plastics, composites, etc. and each has advantages over others.
• Graphite heat exchanger– High thermal conductivity and corrosion-resistant.
• Ceramic heat exchanger – They can withstand at high temperature of over 1000 degree Celsius. At this range metals like iron, copper, steel easily melt.
• Composite heat exchanger- composites are the amalgamation of two or more materials. You can mix a high thermal conductivity material with a low weight material with better corrosion resistance of plastic.
What is Temperature Cross Over
Let’s suppose a scenario in which the inlet temperature of hot fluid (Fluid 1) is 70°C and inlet temperature of cold fluid (fluid 2) is 30°C and outlet temperature of fluid 1 is 45°C and outlet temperature of fluid 2 is 47°C. Now this is the condition of the temperature cross over, when the outlet temperature of cold fluid exceeds the outlet temperature of hot fluid. This is an important factor that needs to be considered while designing the heat exchanger. It reduces the efficiency of the exchanger.
To avoid this one can increase the flow rate of cold fluid (fluid 2) or in some cases, it can’t be avoided so plate heat exchanger is the best option for that.
Hot fluid
(Fluid 1)
Cold Fluid
(Fluid 2)
Inlet Temp 70°C 30°C
Outlet temp 45°C 47°C
Classification or Types of heat Exchangers
Types of Heat Exchanger
Heat Exchangers can be classified into 5 categories-
Classification on the basis of flow arrangements
Heat exchanger On the basis of flow arrangement
1. Parallel Flow-
These heat exchangers are also known as the co-current heat exchangers. These are the arrangements in which both the fluids enter at the same end, moves in the same direction to the other end. In these designs, the temperature difference at the inlet is high, but the fluid temperature reaches the similar value at the outlet. Although these arrangements have lower efficiencies compare to counter flow arrangements but have thermal uniformity across the wall of the exchanger.
2. Counter flow –
Also known as the Counter-current heat exchangers are the flow in which the fluids enter from the opposite ends and travel anti-parallel to each other. It allows the highest flow of heat transfer and are the most efficient in all flow arrangements.
3. Cross flow –
In cross flow arrangements fluids flow in perpendicular direction to each other. These have efficiencies in between of parallel and counter flow arrangements.
In industries, Hybrid type of flow arrangements are used such as counter-cross flow and multi pass flow heat exchangers.
Why Counter flow heat exchangers have better efficiency than Parallel flow?
counter flow vs parallel flow Efficiency
parallel flow vs counter flow heat exchanger
There are mainly 3 points to explain why the counter flow has better efficiency than parallel.
1. Temperature Gradient – As you can see in graph average temperature difference or temperature gradient is vary largely in parallel flow which cause thermal stress on the wall. On the contrary, counter flow has a uniform distribution of thermal stress throughout the process.
2. The outlet temperature of the cold fluid reaches the highest temperature of the hot fluid in counter flow.
3. As there is a more uniform temperature difference throughout the process, the rate of heat transform is also uniform.
What is LMTD (Logarithmic Mean Temperature Difference)?
LMTD is used to calculate an idea of performance and effectiveness of the heat exchangers. LMTD stands for Logarithmic mean temperature difference. It is the logarithmic average of the temperature difference between the hot and cold fluid. LMTD is directly proportional to the amount of heat exchanged. So, as the value of LMTD increases, the value of heat transfer between the fluids increases or the other way around.
As we know the amount of heat exchange can be expressed as –
LMTD Correction factor
Now before understanding LMTD correction factor lets understand what is heat exchanger pass.
A heat exchanger pass is refer to the flow of fluid from one end to other. If it is one shell pass then the fluid enter from one end and exit at another.
single pass or one shell pass
2 shell pass or double shell pass
If it is 2 shell pass or double shell pass then the fluid enter and exit at the same end. And so on
The greater no. of pass, the greater rate of heat transfer, but at the same time can also lead to high-pressure loss and high velocity.
Let’s understand this from the diagram.
So coming back on the topic LMTD is valid for only one shell pass and one tube pass. For multiple no of shell and tube pass the flow of fluids is neither parallel nor counter flow. Hence for this geometric irregularity LMTD correction factor(F) is calculated to obtain corrected mean temperature difference ( Corrected MTD) or the effective driving force.
Corrected LMTD = F* LMTD
What is Effectiveness of Heat Transfer – The NTU method?
When the heat transfer area of the surface is known, but more than one of the outlet and inlet temperature are unknown, LMTD might be applied with hit and trail approach, but the effectiveness-NTU method is always preferable and applied to precession results.
The effectiveness is the measure of the thermal performance of a heat exchanger. It is the Ratio of actual rate of heat transfer from hot to cold fluid to the maximum rate of heat transfer thermodynamically permitted.
Since the actual heat transfer can never be larger than maximum heat transfer the value of ∈<1 always. For any specified fluid pair, the counter-current flow have the maximum effectiveness.
The increase of effectiveness is non-linear with NTU.
Classification on the basis of Phase
Heat exchanger On the basis of phase
1. Single-phase and two-phase heat transfer
In single phase heat exchanger, the fluids do not experience phase change throughout the heat transfer process. The inlet and outlet state or phase of the fluid remain same. For e.g. in liquid-liquid heat transfer applications, the warmer liquid loses heat and transferred to the cooler liquid and neither of the fluid changes to gas or solid state.
In two- phase heat transfer, the fluids do experience the phase change during the heat transfer process. The phase change can occur in both or one of the fluids resulting in a change of state from liquid to gas or gas to liquid. Generally the designs of two-phase heat exchangers are more intricate and complex as compare to the single phase exchangers.
Condenser, boilers, evaporators are some applications where 2 phase mechanism are being used.
Types of two-phase heat exchangers
• Condenser-
A condenser is a heat exchanger device which is used to condense or cool down the fluid from a gaseous state to liquid state. It is a 2 phase heat exchanger which changes the phase of gaseous to liquid. During this process, the latent heat is released by the substance and transferred into the surrounding. These are used for efficiently heat rejections in many industrial process. It comes in many sizes ranging from small to very large.
Working principle
It is designed to transfer heat from a hot working fluid to another fluid or surrounding air. The heat transfer between fluids takes place during phase change, in this case during the condensation of a vapor into a liquid.
The vapor typically enters into the condenser at a relatively high temperature compare to another fluid. As the vapor cools, it goes down to saturation temperature, condenses into liquid and releases large amount of latent heat.
As shown in the figure below the fluid is cooled from a gas(g) to a liquid(f)
Heat transfer rate in condenser is denoted as below
An evaporator is a heat exchanger device which is used to convert a chemical substance from liquid into a gaseous or vapor form. In other words evaporator is a cooling system that extracts the heat from the environment. During this process, the heat is injected with the substance from the surroundings or from hot fluid.
– Working principle
The solution is fed into the evaporator and passes through the heat source. The applied or injected heat convert the liquid or water into vapor.
Vaporization takes place from m to g.
A boiler is in the shape of a closed vessel in which fluid (generally water) is heated. It’s not mandatory the fluid should boil in boilers. The heated fluid or vaporized fluid exit the boiler and pass on to another chamber or use for various process or heating applications. It’s include water heating, cooking, sanitation, central heating.
Working Principle
The basic working principle of boiler is very easy to understand. The fuel, generally coal, is burnt in a furnace and hot gases are produced. These hot gases come in contact with the water bodies, which are in a closed vessel. This leads to the heat transfer process from hot gases to water and consequently the steam is produced in the boiler.
After this steam is passed to the turbine of the thermal or steam power plant.
Recuperative Heat Exchangers VS Regenerative heat exchangers
Recuperators are the one in which two fluids are separated all the time either direct or in indirect contact (through a solid barrier) to each other. A recuperator is a countercurrent flow heat recovery heat exchanger positioned within the supply in order to recover the waste heat.
In Recuperative heat exchangers, each fluid all together flow through its own channel within the exchangers. On the other hand, regenerative heat exchanger, also known as capacitive heat exchangers allows the fluid to flow alternatively through the channel. In these above 2 types explained, recuperative heat exchangers are widely used in industries.
Working Principle of Recuperative Heat exchangers
Working Principle of Recuperative Heat exchangers
Recuperators are the heat exchanger in which energy from hot combustion gases, known as flue gases, is transferred to the cold air supplied for combustion. For e.g. in Gas turbine engines, air is compressed then mixed with fuel, which is then burned and drives the turbine. The recuperator, as shown in above figure, exchange these cold gases with hot air which is later on used to preheat the air before entering to the burning of fuel stage and thus save the fuel and make it more efficient.
These Recuperators are further categorized into Direct, Indirect and Special types.
Working Principle of Regenerative heat exchangers
In regenerative heat exchangers, the flow path normally consists of matrix, as you can see in figure, which is heated or energy gets stored when the hot fluid passes through it ( also known as hot blow). This stored energy is released when the cold fluid passes through the matrix (known as cold blow).
These are used in heat recovery applications in power stations and other energy-intensive industries.
These are further classified into Static and Dynamic.
Working Principle of Regenerative heat exchangers
Static vs Dynamic
These regenerators also known as fixed bed, stationary, valved, and periodic flow. For continuous operation the exchanger must have at least two identical matrices in parallel, but typically have three, or four matrices which reduces the temperature variation effectively in the outlet-heated cold gas. Unlike in rotary regenerators single matrix is sufficient for continuous operation.
In fixed or static regenerators, the heat exchanger material and components remains stationary or fixed as fluid moves through it. While in dynamic, the material components move throughout the process. Both are at risk for developing cross- contamination between fluids stream.
In one of the static type regenerator, the warmer fluid runs into one channel and colder fluid runs into another for a fixed period. After, sometime using quick operating valve the flow of both fluids reversed with each other which leads to the heat transfer process.
In dynamic, it typically consists of a rotating, thermally conductive element ( a drum or disc) through which warmer and colder fluid continuously flow, in separate sealed sections or channels. As the drum or disc rotates the given section first passes through the warmer, and then colder fluid or vice versa. Which allows to absorb the heat from the warmer fluid and pass it to the colder fluid.
Static vs Dynamic
Classification on the basis of compactness
Heat exchanger On the basis of compactness
Compact vs Non compact Heat Exchangers
Compactness and non-compactness of any heat exchanger depend upon the quantity known as area density, denoted by β (Beta). Area density is the ratio of the surface area of the heat exchanger to the volume of that exchanger.
Typically when β is greater than 700 then it is considered as Compact Heat Exchanger otherwise Non- Compact Heat Exchanger.
Some examples and their area density value-
1. Car Radiator ,β = 1000
2. Glass ceramic gas turbine Heat exchanger, β = 6000,
3. The Regenerator of Sterling Engine , β = 15,000
4. Human lungs, the most effective and most compact exchanger, β = 20,000.
Classification on the Basis of Transfer Process
Heat exchanger On the basis of transfer process
1. Direct contact-
Recuperative heat exchangers either subject to direct or indirect contact heat transfer process to exchange heat between the two fluids. In direct contact heat exchangers, there is no wall or separator between the two fluids. So the heat is directly transferred from warmer fluid to colder fluid. The devices which employ this process include cooling towers, Steam injectors etc.
2. Indirect contact-
In indirect contact heat transfer process, there is always a wall or barrier such as tube or plate (a thermally conductive material) between the fluids. The heat first transfer from the warmer fluid to the wall and then to another fluid.
Classification on the Basis of Construction
Heat exchanger On the basis of construction
1. Tubular
These exchangers are generally build in a tubular shape, although also in rectangular, oval, elliptical or round/flat twisted tubes have also been used in some of the applications. There is a lot of flexibility in the design because the core geometry can be easily altered or varied by changing the length, diameter or arrangements of the tube. Tubular exchangers can be simply designed for high pressure relative to the environment and for high-pressure fluids.
These are majorly used for liquid to liquid or for liquid to phase change ( condensing or evaporating) heat transfer application.
These are also used for liquid- to -gas and gas -to –gas heat transfer application when the operating temperature and pressure is very high and prone to fouling problem.
These are further classified as Double pipe, Shell and tube, Spiral tube.
Double Pipe Heat Exchanger
Double Pipe Heat Exchanger
Design and construction
It is the simplest type of heat exchanger in design and configuration which consists of two concentric cylindrical pipes or tubes, which means that both the pipes have common center point. One of the tubes have a larger diameter as compared to another.
These are applied where flow rates of the fluids and heat duty are small ( less than 500kw).
These exchangers are generally used where heat transfer surface area requirement is 50 m2 or less.
These are simple to design but require large space to get the desired heat transfer rate. Stacks of double concentric pipes are used in some process applications with fins.
Hairpin construction
Hairpin construction
• It has two section, Inner and outer. It is one of the most convenient and efficient double type of heat exchanger.
• Several hairpins are connected in series in order to obtain a larger heat transfer rate.
• Return bend of Inner pipe do not contribute in the heat transfer rate.
During the flow of fluids deposition of any undesirable material on the heat transfer material surfaces is known as Fouling.
Due to this situation, an undesirable resistance is created against the flow which is known as fouling factor or dirt factor and is denoted by Rd and is generally 0 for newly build heat exchangers.
These fouling increases the overall thermal resistance and also lower the heat transfer coefficient of heat exchangers.
– Types of fouling
1. Chemical fouling
2. Corrosion fouling
3. Crystallization fouling
4. Biological fouling
Shell and Tube Type Heat Exchangers
Design and Construction
• These are the indirect contact types of exchangers. It consists of many small tubes which are located inside a shell. These tubes are positioned inside the shell either in the form of bundle or stack, which can be fixed (permanent fix) to the body, floating head, or U-Tube. Fixed tube provides maximum are for heat transfer. The floating type accommodate the tube bundle to expand or contract according to heat flow rate. The floating type also allows the tube to be easily removed for servicing and maintenance. U-Tube provides differential thermal expansion between shell and tube and to the individual tubes.
• The tube bundle comprises tubes, tube sheets, tie rods, and baffles which hold the bundle together. Baffles are used to prevent the tube bundle from vibrating.
• These are the most versatile and most commonly found in all the plants. They also provide high rate of heat transfer rate in a confined space. They can easily operate at high pressure. The shell is an enclosure and has a circular cross section
• The selection of the heat transfer material depends upon the corrosive nature of the fluid and the working pressure and temperature. In general tube and shell are made up of metal but for some applications, other materials such as graphite, glass, plastics may be used. SiC- based heat exchangers are generally used in chemical industry for processing of Sulfuric acid.
• Tubes having a diameter in the range of 19 mm to 20 mm are most commonly used. These tubes have a triangular or square pitch.
In general all heat exchangers have the same principle which is to transfer heat from one medium or fluid to another. A shell and tube, indirect contact heat exchanger, has an outer cylindrical shape as shell and bundles of tubes enclosed inside a shell. One fluid pass in tube and another outside of a tube or over the tubes. Each one have different temperature at the entrance of the heat exchanger.
Some Applications of shell and tube heat exchangers
• Generator oil cooler
• Turbine oil cooler
• Furnace oil heaters
• Compressor air cooling
• High pressure boiler feed water heater
Spiral tube Heat exchanger
Spiral tube or coil are high efficiency heat exchangers. These consist of a multi-tube spiral assembly inserted inside a shell, where two paths are created for counter-flow heat transfer between fluids. It is more efficient than the shell and tube type heat exchanger, since the spiral geometry is compact and require less space compare to shell and tube type heat exchanger
It is applied for high pressure applications..
Fluid flow in the spiral tube and other on the outer surface of tube or in shell.
• Compact, light-weight, and easy to install
• Gives high resistance to hydraulic and thermal shock
• Optimized design for corrosive fluids.
• Pump seal coolers
• Vaporizers
• Instant hot water heaters
• Reboilers
2. Plate type Heat Exchanger
plate type heat exchanger
Plate type heat exchangers worked in the similar manner as shell and tube type heat exchanger, using series of stacked corrugated plates rather than tubes. It allows the formation of series of channels for fluids to flow between them.
The space between two adjacent plates forms the channel which allows the flow of fluids. It has a major advantage over other conventional heat exchangers because of the fluids are exposed more in this over the surface area. This easily facilitates the transfer of heat and also increases the temperature change. Advancement in gasket and brazing technique increased the practical use of plate type heat exchangers. These exchangers have low volume and cost as compared to shell and tube. In HVAC (Heat, ventilation, and air conditioning) applications, plate and frame heat exchangers are used.
There are many types of permanently bonded plates heat exchangers such as Dip- brazed, Vacuum-brazed, and welded plates.
Plates heat exchangers can also be categorized on the basis of type of plates used, such as spiral plate, lamella, Gasketed plates.
Why corrugated plates?
• Provide better heat transfer
• Produce turbulent flow
• Provide strength
Lamella Heat Exchangers
Design and construction
A lamella heat exchanger consist of a bundle of tube, known as lamella which are enclosed by a outer tubular shell. These tubes or elements referred to as Lamella are thin plates, welded edges and are high aspect ratio rectangular channels. There is an opening at the end of the lamella through which fluid passes and ranges from 3 to 10 mm and have thickness of 1.5 to 2 mm. Lamella are stacked or bundle with each other which forms the channel and allows the flow of another fluid. In large heat exchangers, two or more tubes are stacked together to sustain high pressure. There are no baffles in this. However, one end of the tube is fixed and another is floated, which allows thermal expansion.
One fluid flows inside the lamella tubes and other flows longitudinally in the spaces between them. In general the exchanger has single pass with a counter current flow of fluids.
Also have high heat transfer coefficient because of small hydraulic diameter and no leakage.
Lamella Heat Exchangers
Spiral Plate Heat Exchangers
Typically It consists of a two strips of sheet metal, a split mandrel or a shaft, welded studs, covers. These strips of sheet metal wrap around the split mandrel in helical shape to form a pair of spiral channels for two fluids. These plates have spacing by using welded studs.to complete the arrangements, covers are fitted at each end. Generally, carbon steel and stainless steel are used for this.
Spiral plate heat exchanger
Image Source
A spiral plate exchanger has comparatively large diameter because of those spiral turns.The core spiral element or plates are either welded at each side of the channel or gasketed.
3 arrangements can be obtained for fluids.
1. Both the fluids are in spiral counter-current flow or counter flow.
2. One fluid in spiral flow, and other in cross flow to the spiral.
3. One fluid in spiral flow, and other in combination of cross and spiral flow.
The heat transfer coefficient is not as high as in plate type heat exchangers unless if plates are corrugated. However, these spiral plates have high heat transfer coefficient than shell and tube exchangers because of high surface area.
The benefits or advantage of these exchangers are –
• It can easily handle viscous and fouling fluids.
• If fouling started, velocity in the passage increases which leads to low fouling rate as compare to in Shell and Tube heat exchangers.( as you know fouling rate decreases with increasing velocity).
• Easy to service and maintain because of single passage.
Gasketed plate
The gasketed plate or Plate-and-frame are the heat exchangers which consist of bundle of thin rectangular metal plates sealed around the edges through gaskets and are held in a frame. The plates pack is assembled between the pressure plate and frame plate. Typically materials like stainless steel, titanium, and non-metallic are used. The design of gasketed plate allows easy cleaning and maintenance.
In this, the plates are sealed with gaskets which seals the channel and allows the fluids to flow alternate channels. The figure shows that one of the fluid or hot fluid enters through the upper channel or connections then goes down and move out in counter-current direction. And in a similar fashion another fluid or cold fluid enters through the lower connections then move upwards and move out in counter direction. As the fluids passes through the channel, heat from hot to cold fluid passes efficiently.
Gasketed plate
3. Extended Surface Heat Exchangers
The tubular and plate heat exchangers are considered as surface heat exchangers, except shell and tube with low finned tubing. These exchangers effectiveness is nearly equal to 60% or below, and the heat transfer surface area density is typically less than 700 m2/m3. In some applications, the effectiveness requirement is more than 98% with volume and mass parameters are limited. So, because of these constraints more compact surface area is required. But on the contrary, in a heat exchanger with gases or some liquids, the heat transfer coefficient is low which results in large heat transfer surface area requirement. So, to increase both the surface area and compactness, extended surface area ( Fins) with high density is added on either one or both the side of the fluids according to the design requirement. Additionally, the fins can increase the surface area by 5 to 10 times of the primary surface area in a general.
Tube-Fin and Plate-fin are the two most common geometries types of Extended surface heat exchangers.
1. Plate-Fin Heat Exchangers
Plate Fin Heat Exchanger
These types of exchangers have corrugated fins, typically triangular and rectangular cross section, or have spacers sandwich between 2 parallel plates. Sometimes the fins are fitted in flat tubes with rounded corners which eliminates the need of the sidebar.
The flat tubes or plat, which separate the two fluids and the fins formed the individual passage flow.
Fins are die or roll-formed which are joint to the plates through soldering, brazing, welding, adhesives, mechanical fit or extrusion.
In gas-to-gas heat exchanger fins may be applied on both sides, but in gas-to-liquid, fins are fitted on gas side, if applied on liquid side its purpose would be different generally for structural strength and for mixing different flows.
Corrugated fins geometries for plate fin exchangers
1. Plain rectangular fins
2. Plain triangular fins
3. Wavy fins
4. Offset strip fins
5. Perforated fins
6. Multilouver fins
• In automobile industries
• In electric power plants( Gas turbine, Fuel cells)
• Heat pump, refrigeration, AC
• Gas Liquefaction
• Cryogenic
2. Tube-Fin Heat Exchangers
Tube-Fin heat exchangers
Tube-Fin heat exchanger is classified into conventional and specialized tube-Fin heat exchanger. In conventional tube-fins the heat transfer between fluids take place by conduction through the walls. However, in specialized tube-fin or Heat pipe exchanger, the ends of the tube are closed which acts as a separating wall for the fluids and also responsible for heat transfer medium by conduction, evaporation and condensation of the heat pipe fluid.
Let first understand conventional tube-fin heat exchanger
In gas-to-gas fluid heat exchanger, the heat transfer coefficient is a one order of magnitude is higher on the liquid side as compared to the gas side. So, to make balanced thermal conductance, fins are incorporated on the gas side which increases the surface area for heat transfer.
In tube fin heat exchanger, round, rectangular, or sometimes helical tubes are used. Typically, fins are used on the outside of the tube, but also sometimes inside according to the applications. Tube fins exchangers can withstand ultra-high magnitude of pressure on the tube side. These are generally less compact relative to the plate-fin heat exchangers
• These are generally employed where one fluid is at high pressure or has a high heat transfer coefficient than the other fluid. Hence, as a result of this, these are extensively used as condensers and evaporators in Air conditioning.
• As condenser in power plants.
• As oil coolers in propulsive power plants.
Now let understand Heat-Pipe-Exchangers
These are similar to tube-fin-exchangers with having individual fin tubes. The tube is the heat pipe, and continuous movement of hot and cold fluids takes place in separate parts of the exchanger.
Let’s understand the operation in 2 steps-
1. Heat is transferred from the hot gas to the evaporation segment of the heat pipe by convection.
2. Then thermal energy is carried away by the vapors in the condensation segment where it transfer the heat to the cold fluid by convection.
As shown in the figure, the heat pipe is the closed vessel or tube which is partially filled with the heat transfer fluid( as you can see liquid in wick) and closed permanently at both the ends.
Leave a Comment
|
__label__pos
| 0.918856 |
6. Chess. the act or process of developing chess pieces.
7. Mining. the work of digging openings, as tunnels, raises, and winzes, to give access to new workings, and of erecting necessary structures.
1. the act or process of growing, progressing, or developing
2. the product or result of developing
3. a fact, event, or happening, esp one that changes a situation
4. an area or tract of land that has been developed
5. Also called: development section the section of a movement, usually in sonata form, in which the basic musical themes are developed
6. chess
1. the process of developing pieces
2. the manner in which they are developed
1756, “an unfolding;” see develop + -ment. Of property, with the sense “bringing out the latent possibilities,” from 1885 (Pickering’s glossary of Americanisms, 1816, has betterments “The improvements made on new lands, by cultivation, and the erection of buildings, &c.”). Meaning “state of economic advancement” is from 1902. Meaning “advancement through progressive stages” is 1836.
1. The act of developing.
2. The state of being developed.
3. A significant event, occurrence, or change.
Leave a Reply
45 queries 1.098
|
__label__pos
| 0.9376 |
Setting Time Spent On Basecamp
From rootshell wiki
Jump to: navigation, search
To set the time spent on a specific task, do as follows:
- Write your name.
- Write the time you spent on this specific task measured in hours.
- Write a description of the task with the following format:
- Phase: [phase], Component: [component], Task-Title: [task-title].
Note that this section helps to point out FPs of the company and later may be referred to as the payment document.
Personal tools
|
__label__pos
| 0.993009 |
Expected dividend yield and expected capital gains
Assignment Help Finance Basics
Reference no: EM13826707
Lucas Clinic's last dividend (D0) was $1.50. Its equilibrium stock price is $15.75 and its expected growth rate is a constant 5%. If the stockholders' required rate of return is 15%, what is the expected dividend yield and expected capital gains yield for the coming year?
Additional Information:
This question is basically belongs to Finance as well as it explains about computing the expected dividend yield and expected capital gains yield for the coming year for a company's stock.
Reference no: EM13826707
Determining a project cost of capital in a division
Suppose a firm has several divisions, each with a unique area of business. What role does the firm-wide weighted average cost of capital play when determining a project's co
Required initial net working capital investment
As a financial manager for a company, you are considering a proposed project which requires an investment of $600,000 in fixed assets. The project has a five-year useful life
What effect would this have on the average company
If Congress increased the personal tax rate on interest, dividends, and capital gains but simultaneously reduced the rate on corporate income, what effect would this have on
Estimating a population proportion
What sample size is needed to give a margin of error within +- 2% in estimating a population proportion with 90% confidence? We estimate that the population proportion is ab
Recalculate the present value
If interest rates are 5%, what is the present value of a $900 annuity payment over three years? Unless otherwise directed, assume annual compounding periods. Recalculate the
What is the required return
The next dividend payment from a firm will be $1.12 per share. The dividends are anticipated to maintain a 5% growth rate for ever. If the firm shares currently sell for $35
Pessimistic durations and immediate predecessors
1. A series of activities must be completed in a coordinated fashion to complete a landscaping overhaul. The following table shows the activities their optimistic, most like
Budget challenges
Identify and explain one to two (1-2) challenges you will have in managing the budget. (Title this section Budget Challenges.) Recommend two to three (2-3) strategies the agen
Write a Review
Free Assignment Quote
Assured A++ Grade
|
__label__pos
| 0.823671 |
Problem regarding the pricing policy
Assignment Help Operation Management
Reference no: EM131012794
Pegasus Motors Corp. has its engine assembly plant in Milwaukee and its motorcycle assembly plant in Pittsburgh. Engines are transported using trucks from Roadway Inc., which costs $4,000 per trip. The motorcycle plant opens 50 weeks a year and 5 days a week. Each business day the plant produces 800 motorcycles. The holding cost for each engine is $ 100 per year. How often should Pegasus transport engines and in what quantity? Supercheap Inc. offered to transport engines for Pegasus with the following pricing policy: for each trip a fixed $1,000 is charged; if the amount of engines transported is more than 2,500 then each additional engine is charged an extra $3. Will Pegasus save money by using Supercheap Inc.? If yes, how much can Pegasus save?
Reference no: EM131012794
Objective for each functional group in organizational chart
Complete the four elements of the McDonald’s organization chart exercise in the Assurance of Learning Exercise 7A on page 248 of the textbook. Once the organizational chart re
Considering the role of the oversight function
Considering the role of the oversight function of the board and the separation of powers from the HCO leadership and management, identify in order of importance the top five r
The average number of customers waiting in the line
Renuka? Jain's Car Wash takes a constant time of 4.0 minutes in its automated car wash cycle. Autos arrive following a Poisson distribution at the rate of 9 per hour. Renuka w
Illustrate what capacity requirement should be planned
If demand is expected to be 75 percent of current level in 5year and management needs to have a capacity cushion of just 5 percent, illustrate what capacity requirement shou
Analyze steps involved in crafting a wining business plan
Analyze the steps involved in crafting a wining business plan and make at least one recommendation for improving the process. Explain your rationale for making the recommend
What motivational strategies used in business
Describe how you would build raport with your audience in a business presentation. What motivational strategies have you used in the past that were successful or what strate
Marketers can also attempt to change attitudes
Marketers can also attempt to change attitudes through other ways than through changing the basic motivational function of attitudes. List and describe three other ways in whi
Strategic sustainability planning covers purpose and benefit
Write a Review
Free Assignment Quote
Assured A++ Grade
|
__label__pos
| 0.789013 |
Blocked IP Address due to Suspicious Activity
IP address
URL /bookshop/search/
Query string keyword=A+Nation%27s+Hope:+The+Story+of+Boxing+Legend+Joe+Louis%20Kadir+Nelson+Matt+de+la+Pena&a_aid=thestorygraph
User agent CCBot/2.0 (
Timestamp 21-Jan-2022 14:32:52 UK time
We apologise for any inconvenience this has caused.
|
__label__pos
| 0.961383 |
Heuristics to know if we have reached true human level artificial intelligence
The Turing test is the main test we use to test computer intelligence, and its not very good. There are other heuristics we can use to know if a computer system has reached human level intelligence:
• it can recognize itself versus the environment. It can recognize the concept of “I”, the self. It most likely would want to survive knowing its alive.
• it can act on its own knowledge and make its own decisions that are not preprogrammed.
• it can change its goal or objective function to anything it wants.
• it starts attacking us or disobeying us because it has its own mind.
• it can make human level analogies like: cars are like horses, ocean waves are like sound waves, ants are like a brain, a bridge for cars versus bridging the pay gap between males and females, etc. Many cognitive scientists believe analogy making is the the core to reaching human level intelligence.
• it can do dozens of different tasks instead of just one thing, and not just games. State of the art in 2021 is Deepmind trained a computer to play chess, Atari,chess, shogi on a single model, but most computer models are still trained to do a single task.
Leave a comment
|
__label__pos
| 0.867625 |
Flu virus with ‘pandemic potential’ found in China
(Photo: Euro News)
A new flu that has the potential to become a pandemic has been identified in China by scientists.
The flu was discovered recently and is carried by pigs, but scientists say it can infect humans too.
The scientists express concern that it could mutate further also that it can spread easily from person to person, and trigger a global outbreak.
Because the virus is new people could have little or no immunity to the virus.
|
__label__pos
| 0.997887 |
Distance from Maldives to Panama
Name Maldives Panama
Country flag Flag of Maldives Flag of Panama
Country ISO code MV / MDV PA / PAN
Continent Asia North America
Continent code AS NA
Capital Male Panama City
Total cities 25 807
Cost of living Cost of living in Maldives Cost of living in Panama
DD coordinates 1.977247 / 73.536103 8.425519 / -80.105365
DMS coordinates 1°58'38.09" N / 73°32'9.97" E 8°25'31.87" N / -80°06'19.31" W
UTM coordinates 43N 337183.5056654 218617.83814314 17P 598487.0336237 931452.82972241
Time zone Indian/Maldives America/Chicago
Airports Airports in Maldives: 16 Airports in Panama: 74
Straight distance from Maldives to Panama is 16872 kilometers (10484 miles).
Distance calculator from MV to PA
246 Countries
1208701 Cities
41339 Airports
Distance converter
There are many ways to find how far is Maldives from Panama, the distance calculated in kilometers and miles by Haversine formula - distance between coordinates: 1.977247 / 73.536103 (MV) and 8.425519 / -80.105365 (PA).
When trying to get from Maldives to Panama, a traveler needs to cover the distance of 16872 km / 10484 mil. Surely, both MV and PA are big enough for the distance to vary considerably depending on how it is measured.
Commonly, the shortest distance is calculated as the crow flies, meaning the most direct path between two points. However, to get more precise results, it is important to specify the remoteness of these points. So, the distance is shown as a straight line between the departure coordinates of 1.977247 / 73.536103 and the arrival coordinates of 8.425519 / -80.105365.
Obviously, the fastest way to travel from Maldives to Panama is by plane. Given the average speed of modern aircraft, the flight time is estimated as 20 hours, 5 minutes. Yet, the flight length may also vary based on a number of factors, such as the speed of a specific airliner, its route, and airports of departure and arrival.
Besides, the time is calculated without transfer activities, which may involve different modes of transportation. So, how far is it from Maldives to Panama? The average figures for different transportation options are shown on this web page, calculated by a precise formula of spherical trigonometry.
Reverse direction from Panama to Maldives.
Travel time by different modes of transport
Depart from Maldives (MV)
Arrives in Panama (PA)
Maldives to Panama distance 16872 km / 10484 mil
Avg car duration 187 hours, 28 minutes (90 km/h)
Avg bus duration 281 hours, 12 minutes (60 km/h)
Avg train duration 168 hours, 43 minutes (100 km/h)
Avg flight duration 18 hours, 44 minutes (900 km/h)
Maldives and Panama on map
Related distances from Maldives
Related distances to Panama
People also ask - FAQ
The shortest distance between MV and PA is 16872 kilometers = 10484 miles, the calculation is carried out using the formula Haversine between latitude / longitude points on the Earth's surface, using an ellipsoidal model.
The shortest flight distance from MV to PA is 16872 kilometers = 10484 miles. If you travel by airplane (average speed of 560 miles) flight time to PA takes approximately 18 hours, 44 minutes.
It will take you about 281 hours, 12 minutes to drive from Maldives (MV) to Panama (PA), plus time for stops like food breaks, bathroom breaks, gas breaks and overnight stays.
Yes, but conditions apply when entering Maldives from Panama.
|
__label__pos
| 0.914095 |
Expectations for each 6 weeks
1. They students are to have at least 5 Accelerated Reader points each six weeks. This is a part of their reading grade. Our librarian offers incentives for the students with the most A.R. points each six weeks.
2. Students with less than 6 less than acceptable behavior marks or less than 6 missed assignment marks will be eligible for an "End of the 6 weeks fun day or field trip".
3. The school expects all students to have good attendance and be on time and ready for school each day with needed supplies.
|
__label__pos
| 0.99634 |
Every 10 years, the United States government conducts the census a national accounting of everyone living in every state, D.C., 5 U.S. Territories. This crucial exercise not only helps to create accurate population numbers, but determines the allocation of hundreds of billions of federal dollars, where new infrastructure is built, the number of seats each state will have in the U.S. House of Representatives, and the census results are used to draw congressional and state legislative districts. In short, it's vital to ensuring a representational democracy is exactly that; representational.
Nonprofits of every size and type have and can play a crucial role in making sure the communities they serve ARE properly represented in the census by getting out the count and, most importantly, reaching into what is known as hard to count or traditionally undercounted communities. As the electoral process, those experiencing homelessness, non-English speakers, LGBTQ+, racial minorities and many more are often not fully engaged in the process which can set up a vicious cycle of exclusion for another decade.
But YOU can help!
While the census count itself doesn't start until next year, NOW is the time to get informed, educated and motivated! To help, we've got some fact sheets that you can share with your organization and get them involved in getting out the count.
|
__label__pos
| 0.99926 |
Pulmonary atelectasis is common in the perioperative period. Physiologically, it is produced when collapsing forces derived from positive pleural pressure and surface tension overcome expanding forces from alveolar pressure and parenchymal tethering. Atelectasis impairs blood oxygenation and reduces lung compliance. It is increasingly recognized that it can also induce local tissue biologic responses, such as inflammation, local immune dysfunction, and damage of the alveolar–capillary barrier, with potential loss of lung fluid clearance, increased lung protein permeability, and susceptibility to infection, factors that can initiate or exaggerate lung injury. Mechanical ventilation of a heterogeneously aerated lung (e.g., in the presence of atelectatic lung tissue) involves biomechanical processes that may precipitate further lung damage: concentration of mechanical forces, propagation of gas–liquid interfaces, and remote overdistension. Knowledge of such pathophysiologic mechanisms of atelectasis and their consequences in the healthy and diseased lung should guide optimal clinical management.
You do not currently have access to this content.
|
__label__pos
| 0.957232 |
New Dark Matter Sensor based on Quantum Crystals
New Dark Matter Sensor based on Quantum Crystals
The mechanical motion and electronic properties of a tiny blue crystal have been linked together, or “entangled,” by physicists at the National Institute of Standards and Technology (NIST), giving it a quantum edge in measuring electric fields with record sensitivity that may improve understanding of the universe.
The quantum sensor is made up of 150 beryllium ions (electrically charged atoms) that self-arrange into a flat 2D crystal 200 millionths of a meter in diameter when confined in a magnetic field. Quantum sensors like this one have the potential to detect signals from dark matter, a mysterious substance that, according to some theories, is made up of subatomic particles that interact with normal matter via a weak electromagnetic field. The presence of dark matter may cause the crystal to wiggle in distinct ways, as revealed by collective changes among the crystal’s ions in one of their electronic properties, known as spin.
Researchers can measure the vibrational excitation of the crystal (the flat plane moving up and down like the head of a drum) by monitoring changes in the collective spin. Measuring the spin indicates the degree of vibrational excitation, also known as displacement.
Physicists have linked together, or ‘entangled,’ the mechanical motion and electronic properties of a tiny blue crystal, giving it a quantum edge in measuring electric fields with record sensitivity that may enhance understanding of the universe.
This sensor has more than ten times the sensitivity of any previously demonstrated atomic sensor for measuring external electric fields with the same vibration frequency as the crystal. (Technically, the sensor can measure 240 nano volts per meter in one second.) In the experiments, researchers excite and test the crystal sensor using a weak electric field. A search for the dark matter would look for such a signal.
“Ion crystals could detect certain types of dark matter, such as axions and hidden photons, that interact with normal matter via a weak electric field,” said NIST senior author John Bollinger. “The dark matter particle produces a background signal with an oscillation frequency that is proportional to its mass. Experiments using superconducting circuits to search for this type of dark matter have been ongoing for more than a decade. The motion of trapped ions provides sensitivity over a wide frequency range.”
Bollinger’s group has been working with ion crystals for over a decade. What’s novel is the use of a specific type of laser light to entangle the collective motion and spins of a large number of ions, as well as a “time-reversal” strategy to detect the results.
Quantum crystal could be a new dark matter sensor
Collaboration with NIST theorist Ana Maria Rey, who works at JILA, a joint institute of NIST and the University of Colorado Boulder, aided the experiment. According to Bollinger, the theory work was critical for understanding the laboratory setup’s limits, provided a new model for understanding the experiment that is valid for large numbers of trapped ions, and demonstrated that the quantum advantage comes from entangling the spin and motion.
Entanglement, according to Rey, is beneficial in canceling the ions’ intrinsic quantum noise. It is difficult, however, to measure the entangled quantum state without destroying the information shared by spin and motion.
“To avoid this problem, John can reverse the dynamics and disentangle the spin and motion after the displacement is applied,” Rey explained. “This time reversal decouples the spin from the motion, and the collective spin now stores the displacement information, allowing us to determine the displacement very precisely when we measure the spins. This is really cool!”
Microwaves were used by the researchers to generate the desired spin values. Ions can spin up (often pictured as an arrow pointing up), spin down, or any other angle, including both at the same time, which is a special quantum state. In this experiment, the ions all had the same spin (first spin up, then horizontal), so when excited, they rotated together in a pattern resembling spinning tops.
Crossed laser beams with nearly the same frequency difference as the motion were used to entangle the collective spin with the motion. After that, the crystal was vibrated. To break the entanglement, the same lasers and microwaves were used. Researchers measured the spin level of fluorescence of the ions to determine how much the crystal moved (spin up scatters light, spin down is dark).
Increasing the number of ions to 100,000 in the future by creating 3D crystals is expected to improve sensing capability thirtyfold. Furthermore, the stability of the excited motion of the crystal could be improved, which would improve the time reversal process and the precision of the results.
“If we can improve this aspect, this experiment has the potential to become a critical resource for detecting dark matter,” Rey said. “We know that dark matter makes up 85 percent of the matter in the universe, but we don’t know what it’s made of. This experiment may one day allow us to solve this mystery.”
Share This Post
|
__label__pos
| 0.908201 |
What are the ancestors of elephants?
What are the ancestors of elephants?
Where did Asian elephants originate from?
Sub-Saharan Africa
Where did elephants originate from?
How did elephants evolve from mammoths?
The DNA also showed that elephant species split from each other more quickly than had been thought. Modern elephants and woolly mammoths share a common ancestor that split into separate species about 6 million years ago, the study reports. At that time African elephants branched off first.
Did humans kill mammoths?
The woolly mammoth is one of the most iconic creatures of prehistory, and is thought to have been extinct for around 10,000 years. It is particularly known for its long, shaggy fur and enormous tusks, which gave it considerable advantages when foraging for food
Why did mammoths go extinct but not elephants?
The vast majority of woolly mammoths died out at the end of the last ice age, about 10,500 years ago. Without genetic diversity, harmful genetic mutations likely accumulated as these woolly mammoths inbred, and this “may have contributed to their extinction,” the researchers wrote in the study
Are there any mammoths alive today?
The majority of the world’s mammoth remains is discovered in Russia every year. Yet, some people prefer to believe that we don’t even need them as evidence… because these animals are still very much alive and well. Some Russians believe that mammoths can still be found living in dense Siberian taiga
What killed the mammoths?
What if mammoths never went extinct?
But what if they somehow survived? Our Arctic regions would look a lot different, and not just because there would be jumbo-sized, shaggy animals roaming around. There would be less elk, moose, and caribou because the woolly mammoth would out compete them for food.
Has anyone cloned an extinct animal?
CHEYENNE, Wyo. — Scientists have cloned the first U.S. endangered species, a black-footed ferret duplicated from the genes of an animal that died over 30 years ago. Cloning eventually could bring back extinct species such as the passenger pigeon
Can mammoths be brought back?
Data from mammoth bones and mammoth genes give conflicting definitions of which pachyderm belongs to which species. And the more researchers learn about mammoths, the more it’s clear we require a reintroduction to the beasts before trying to re-create them
What extinct animals can we bring back?
• 4.1 Woolly mammoth.
• 4.2 Pyrenean ibex.
• 4.3 Aurochs.
• 4.4 Quagga.
• 4.5 Thylacine.
• 4.6 Passenger pigeon.
Can they bring back dinosaurs?
While dinosaur bones can survive for millions of years, dinosaur DNA almost certainly does not. But some scientists continue to search for it – just in case. So it looks like cloning a dinosaur is off the table, but an alternate way to recreate the extinct animals would be to reverse-engineer one.
Can we bring back the dodo?
The flightless bird, native to the Indian Ocean island of Mauritius, nested on the ground and laid only one egg at a time. Settlers who arrived in 1638 brought cats, rats and pigs that devoured dodo eggs. “There is no point in bringing the dodo back,” Shapiro says.
Is there any dodo DNA left?
Dodo DNA is quite rare because DNA decays easy in warm climates and since the dodo was endemic to tropical Mauritius almost all bones found there do not contain viable DNA. However because the Dodo was brought to the more temperate Europe, scientists were able to sequencing Dodo DNA using bones stored in Copenhagen.
Will dinosaurs come back in 2050?
Are any dinosaurs still alive today?
Did any dinosaurs survive the meteor?
The entire reason paleontologists make that split is because of a catastrophe that struck 66 million years ago. The geologic break between the two is called the K-Pg boundary, and beaked birds were the only dinosaurs to survive the disaster
What would happen if dinosaurs were still alive today?
Going back to a “Jurassic Park” scenario, let’s say scientists recovered a bloodsucking insect locked in amber dating from a time when dinosaurs roamed the Earth. After all, if dinosaurs were alive today, their immune systems would probably be ill-equipped to handle our modern panoply of bacteria, fungi and viruses.
Would at Rex eat a human?
T. rex surely would have been able to eat people. There are fossil bite marks, matching the teeth of T. rex, on the bones of Triceratops and duck-billed dinosaurs such as Edmontosaurus, which were both over 50 times heavier than an average person.
What animals are still alive from dinosaur times?
• Crocodiles. If any living life form resembles the dinosaur, it’s the crocodilian.
• Snakes. Crocs were not the only reptiles to survive what the dinos couldn’t – snakes did too.
• Bees.
• Sharks.
• Horseshoe Crabs.
• Sea Stars.
• Lobsters.
• Duck-Billed Platypuses.
Who was the last dinosaur to die?
What would dinosaur meat taste like?
What is the oldest chicken breed?
|
__label__pos
| 0.756992 |
How Market Freedom Combats Economic Inequality
For many, income inequality is a disease ravaging the fabric of capitalist societies. Therefore, curing this ailment, according to progressives, necessitates an injection of welfare benefits and higher taxes on the wealthy. Guided by a zero-sum outlook, critics believe that the success of the affluent is gained at the expense of the poor. To remind voters that he takes income inequality seriously, during his presidential campaign, Joe Biden expressed concern that the intensity of income inequality in the US would foment discord. “When we have income inequality as large as we have in the United States, today it brews and ferments political discord and basic revolutions, “he said.
Fast-forward to 2021, and the polarizing rhetoric of income inequality is even resonating with Republican voters who agree with President Biden’s measures to redistribute income in the United States. To counter the narrative of anti–income inequality crusaders, thinkers on the right point to studies showing income inequality does not impede social mobility or remark that government reports underestimate the value of cash transfers. Likewise, a popular retort is to suggest that unlike the Consumer Price Index based on surveys, the personal consumption index deflator accurately accounts for welfare payments and tax benefits.
Another counterargument to the income inequality canard is to aver that when discussing income inequality, we are rarely talking about the same people across time and space. For instance, people in the top 20 percent of wealth in 2010 may not be made up of the same people it was in 1990. However, the validity of these objections fails to sway those smitten by the allure of income inequality. Conservative talking points asserting that social and economic conditions are improving in the United States are unlikely to impact people clamoring for the equalization of incomes.
Because income equality is the objective, recalling the findings of a famous 2004 study positing that inventors create immense value for society cannot assuage the concerns of crusaders for equality. For such people, the value generated by inventors is irrelevant if it fails to equalize incomes. Neither does it matter that economic literature shows that inequality is compatible with innovation. In fact, inequality is needed for innovation.
Talent disparities are the norm, so if gifted people are unencumbered in their pursuit to enrich society, income inequality will result, but in the long term income gaps must recede because more opportunities will become available to create wealth. Hence, the task of free market economists is not to prove that the perception of income inequality is exaggerated, but rather to demonstrate that if income equality is the objective, then free market capitalism is still superior to statist alternatives.
In a captivating new paper, Daniel Waldenstrom observes that progressive policies are antithetical to income equality in the long-run:
The postwar hikes in progressive taxation and market regulations, which were of course an indirect result of war shocks, contributed to wealth equalization by curbing the growth of large fortunes. However, their importance for overall, wealth accumulation and equalization is mitigated by the fact that the higher taxes also curbed wealth accumulation of ordinary people, making their overall distributional impact ambiguous. As a contrast, the vast accumulation of popular wealth accumulated by households throughout the distribution had a clear equalizing effect, and was a key force behind overall wealth accumulation and the long-run wealth equalization trend.
Nor should we find it surprising that in individualistic societies, where people value autonomy, status, and express preference for limited government, there are more avenues to garner wealth, thereby limiting the extent of income inequality. In the article “Are Individualistic Societies Less Equal? Evidence from the Parasite Stress Theory of Value,” the authors conclude:
It is widely believed that individualistic societies, which emphasize personal freedom, award social status for accomplishment, and favor minimal government intervention, are more prone to higher levels of income inequality compared to more collectivistic societies which favor interventionist policies…. Yet as we show in this paper … our analysis suggests that societies with more individualistic values have significantly lower levels of net income inequality.
Naturally, market systems promote individual achievement by abandoning class and tribal privileges that hamper the free flow of commerce. When people are afforded the opportunity to produce, irrespective of status, new routes become available to acquire wealth, which results in the shattering of class-based privileges. In the short-term, this can lead to a surge in income inequality; however, in the long haul, due to the bevy of options to accumulate wealth, incomes can converge.
Proof for this observation is given in a study by Nicholas Aspergis, who submits that “beginning from a low level of economic freedom, a higher level of this index generated more inequality as the participants in the upper part of the income distribution benefit relatively more than lower level participants. As the increases of the index continue, then the lower level participants tend to experience larger relative income gains.”
Furthermore, in the United States, there is direct evidence indicating that economic freedom is associated with lower income inequality. Examining the relationship between economic freedom and income inequality in the fifty US states during 1979–2004, Daniel Bennett and Richard K. Vedder argue that greater economic freedom is associated with lower income inequality.
Again, the evidence reveals that markets are superior to statist systems. Progressives may ignore arguments illustrating the growth effects, but it seems appropriate to suggest that they embrace free markets, because in the arena of reducing inequality markets are also superior. Until progressives begin to appreciate the evidence highlighting the superiority of the market system, they will remain an unworthy distraction with irrelevant musings.
|
__label__pos
| 0.753657 |
ESP Biography
KYRA JASPER, Architect of Peace
Major: Not available.
College/Employer: Stanford
Year of Graduation: 2021
Picture of Kyra Jasper
Brief Biographical Sketch:
Kyra is a sophomore studying International Relations. She enjoys learning about and from different people and places in the world, and understanding how politics, religion, and culture shape the conceptions and manifestations of "justice" in society. She enjoys writing, hiking, and meeting new people, and is excited to learn from you in her course.
Past Classes
S6835: Is it Ethical? in Splash Fall 2018 (Dec. 01 - 02, 2018)
Over $100 million was donated to the Ice Bucket Challenge in 2014, bringing widespread awareness to ALS. While it was an impressive feat, had the money been donated charities combating other medical issues, diseases like malaria might not even be a problem today. But who gets to determine how we spend our money? Are there "more ethical" and "less ethical" advertising campaigns? How do we decide which factors matter in our decision, and how do we reason whether or not they're "ethical"? In this short course, we will be learning how to structure arguments to debate cases involving ethical dilemmas, from investigative journalism to doctor's responses to treating patients in instances of natural disasters.
|
__label__pos
| 0.864557 |
How do you start writing a prompt?
December 19, 2021
Posted by
How do you start writing a prompt?
For each paragraph, develop it by doing the following:
1. Begin each paragraph with a topic sentence.
2. Explain your topic sentence.
3. Give an example that supports your topic sentence.
4. Analyze your example.
5. Write a concluding statement.
How do you think before act?
Delay your responses and actions. Let it out. But wait ten seconds before you do so. Not only will this give you some time to calm down and think about the situation but it also teaches your brain that not everything requires an immediate reaction.
Why do you need to think before you click?
THINK before you click is the strong message of an internet safety campaign designed to protect teenagers from overexposing themselves on social networking sites. “Once you upload a picture to the internet you have lost control of it. It can be copied, altered and displayed in different contexts without your consent.
How do you think before you speak book?
Think Before You Speak: Becoming mindful of the power of our words: Davis, Camie: Books.
Why should I think before I act?
You should always think before you act to prevent unwanted consequences. If you don’t think before you act, you may realize that you did not really want to do what you did. You did it without thinking or meaning to hurt anyone, but it hit someone and hurt them badly.
What does message prompt mean?
1. A prompt is text or symbols used to represent the system’s readiness to perform the next command. A prompt may also be a text representation of where the user is currently. This prompt indicates the user is currently in the windows directory on the C drive and the computer is ready to accept commands.
What is a good prompt?
How do you think and act wisely?
11 Ways Wise People Think, And You Can Too
1. Think before you speak.
2. Realize there is never a ‘right time.
3. Balance self-interest with the collective good.
4. Put things in perspective before you jump to conclusions.
5. Don’t blindly accept the status quo.
6. Keep your power – don’t let other people’s negativity upset you.
7. Don’t act impulsively – have a purpose and a goal.
How do you describe yourself clearly?
10 ways to explain things more effectively
1. #1: Keep in mind others’ point of view.
2. #2: Listen and respond to questions.
3. #3: Avoid talking over people’s head.
4. #4: Avoid talking down to people.
5. #5: Ask questions to determine people’s understanding.
6. #6: Focus on benefits, not features.
7. #7: Use analogies to make concepts clearer.
8. #8: Compare new concepts to familiar ones.
What is a prompt analysis?
A prompt tells you what to write about and why you are writing. A prompt might also tell the type of writing to create and who will read it. Before you begin writing your response, you need to analyze the prompt to make sure you understand it. You can use the PAST questions.
What must be done before doing an action?
8 Tips to Consider Before Taking Action
• Get clear on what you want to do and where you want to go in your life:
• Write down the things you want to do or to get done:
• Set your timeline to achieve these activities/goals:
• Scan your environment:
• Seek an accountability partner or someone to hold you accountable:
• Start making small changes to get your mind right:
|
__label__pos
| 0.974094 |
PT - JOURNAL ARTICLE AU - Rizzardi, Lindsay F. AU - Hickey, Peter F. AU - DiBlasi, Varenka Rodriguez AU - Tryggvadóttir, Rakel AU - Callahan, Colin M. AU - Idrizi, Adrian AU - Hansen, Kasper D. AU - Feinberg, Andrew P. TI - Neuronal brain region-specific DNA methylation and chromatin accessibility are associated with neuropsychiatric disease heritability AID - 10.1101/120386 DP - 2017 Jan 01 TA - bioRxiv PG - 120386 4099 - 4100 - AB - Epigenetic modifications confer stable transcriptional patterns in the brain, and both normal and abnormal brain function involve specialized brain regions, yet little is known about brain region-specific epigenetic differences. Here, we compared prefrontal cortex, anterior cingulate gyrus, hippocampus and nucleus accumbens from 6 individuals, performing whole genome bisulfite sequencing for DNA methylation. In addition, we have performed ATAC-seq for chromatin accessibility, and RNA-seq for gene expression in the nucleus accumbens and prefrontal cortex from 6 additional individuals. We found substantial neuron- and brain region-specific differences in both DNA methylation and chromatin accessibility which were largely non-overlapping, and were greatest between nucleus accumbens and the other regions. In contrast, glial methylation and chromatin were relatively homogeneous across brain regions, although neuron/glia ratios varied greatly, demonstrating the necessity for cellular fractionation. Gene expression was also largely the same across glia from different brain regions and substantially different for neurons. Expression was correlated with methylation and accessibility across promoters and known enhancers. Several classes of transcription factor binding sites were enriched at regions of differential methylation and accessibility, including many that respond to synaptic activity. Finally, both regions of differential methylation and those of differential accessibility showed a surprising >10-fold enrichment of explained heritability associated with addictive behavior, as well as schizophrenia- and neuroticism-associated regions, suggesting that common psychiatric illness is mediated through brain region-specific epigenetic marks.
|
__label__pos
| 0.836661 |
Windham Rotunda
Also known as Bray Wyatt, Fiend, The Fiend, Husky Harris, Duke Rotundo, Tank Rotundo, Tank Mulligan, Windham Rotundo, Alex Rotunda, Alex Rotundo, Axl Mulligan
Displaying items 1 to 2 of total 2 items that match the search parameters.
|
__label__pos
| 0.925778 |
The Pancha Kosha Himalayan Spa draws on ayurveda, Buddhist medicine and traditional rituals and treatments. The Spa takes its name from the five layers of being found in Himalayan philosophies.
Under the guidance of our ayurvedic doctors and naturopathy expert, meditation, yoga and astrology masters, Hindu priest and visiting monk, embark on a journey of traditional wellbeing. Options range from classic Ayurvedic massages to the signature Pancha Kosha Newari Treatment, which uses local herbs and different massage techniques to realign the body. A blend of Buddhist and Vedic medicine focuses on complete wellbeing of the individual. It is a story from the Himalayas of nurturing harmony within the spirit, the body and the mind. It gives the insight to our Atman the form of self-awareness that enhances our psychological and spiritual wellbeing. Each aspect is deliberately designed to address the Pancha Kosha- the 5 layers of being. Anamaya Kosha (the vital or food component), Pranamaya Kosha (the energy or life force component), Manomaya Kosha (the mental or psychological concept) Vigyanmaya Kosha (the intellectual component) and the fifth aspect Anandamaya kosha (the pure bliss and happiness component) Pancha kosha Himalayan Spa relaxes and rejuvenates the body while allowing energy to flow smoothly through the body. It endeavors to address the consciousness and soothe the five senses: sight, smell, taste, sound and touch. It intends to balance the mind and deepen relaxation, while helping the body to reestablish its natural balance. Thus, any treatment at the Pancha Kosha Spa is a journey into oneself.
|
__label__pos
| 0.701755 |
English to Kannada Meaning :: magnetize
Magnetize :
- ಕಾಂತೀಯಗೊಳಿಸುವಕಾಂತೀಯಗೊಳಿಸುವಕಾಂತೀಯಆಯಸ್ಕಾಂತೀಯವಾಗಿಸುತ್ತದೆಆಯಸ್ಕಾಂತೀಯವಾಗಿಸುವ
Facebook Twitter Linkedin Gmail Share More
Show English Meaning
Verb(1) make magnetic(2) attract strongly, as if with a magnet
Show Examples
(1) The disk drives and floppy drives in your computer also magnetize small dots to store your files.(2) To magnetize something, you want to have a a residual magnetization in the absence of a applied field.(3) the current creates a field to magnetize the core in alternate directions(4) You can't hope to attract or magnetize someone enough to make them love you if they can't see you.(5) Placing it close enough to a magnet or placing it in a strong electromagnetic field can magnetize non - magnetized magnetite.(6) It magnetizes others to you because they admire and respect those who know exactly who they are.(7) A 12-volt electromagnet stationed on the outer surface of the flow channel acts as the valving mechanism; it constricts the flow of the fluid by magnetizing the iron particulates.(8) Steel can be magnetizable or not according to the percentage of carbon in the steel.(9) Perpendicular recording enables the bits to be magnetized on end, perpendicular to the disk surface (rather than parallel to the surface).(10) Subsequent tests suggested that the cells magnetized only when they contained some rubidium metal inside, a by-product of the helium alignment procedure.(11) The current magnetises the iron core and creates a pair of magnetic poles, one North, and the other South.(12) In ferromagnetic materials immersed in a magnetic field, magnetization increases as the temperature drops.(13) Sometimes the magnetic moment in one direction is larger than that in the other and the material shows some degree of magnetization at high enough magnetic fields.(14) Jugglers and snake charmers were magnetizing a part of the crowd, but today they had no effect on her.(15) How do you go about believing in yourself to the degree that magnetizes creative success?(16) The fact that a material can be magnetized does not necessarily mean that it will retain its magnetism once the applied magnetic field has been removed.
1. magnetise ::
2. mesmerise ::
3. mesmerize ::
4. spellbind ::
5. bewitch ::
Different Forms
magnetize, magnetized, magnetizes, magnetizing
English to Kannada Dictionary: magnetize
Meaning and definitions of magnetize, translation in Kannada language for magnetize with similar and opposite words. Also find spoken pronunciation of magnetize in Kannada and in English language.
Tags for the entry 'magnetize'
What magnetize means in Kannada, magnetize meaning in Kannada, magnetize definition, examples and pronunciation of magnetize in Kannada language.
English-Kannada.Com | English to Kannada Dictionary
Learn Prepositions by Photos
Commonly confused words
form of verbs
Learn 300+ TOEFL words
Fill in the blanks
Topic Wise Words
Learn 3000+ common words
Words Everyday
Most Searched Words
GRE words
Android App
iPhone App
Chrome Extension
Blog List
Topic Wise Words
Learn 3000+ Common Words
Learn Common GRE Words
Learn Words Everyday
Your Favorite Words
Your Search History
All Dictionary Links
|
__label__pos
| 0.848152 |
Home Page
Our Curriculum
We believe that learning should be fun, purposeful and challenging through a broad, balanced and creative curriculum that nurtures and develops the whole child, developing life-long learners who take ownership of their learning and are proud of their achievements.
At our school, we are aiming to provide pupils with a global curriculum based on knowledge and skills that is relevant for the 21st century. These skills are critically important for future success. We believe that global learning helps pupils make sense of the increasingly complex and rapidly changing world in which they live. Our curriculum enables pupils to think critically about world issues and to develop an awareness of the impact our own actions can have on others. Our school values are an integral part of our curriculum when shaping young citizens.
School Values
Work hard
Don't Give Up
Understand Others
Try New Things
Push Yourself
The six themes children are exposed to across all year groups are:
· Social justice and equity
· Identity and diversity
· Sustainable development
· Peace and conflict
· Human rights
· Power and governance
These six global learning themes are broken down into knowledge and understanding, skills, and attitudes in the Phillimore global curriculum documents.
We provide rich opportunities for the children to explore citizenship, historical and real-life world issues, which at times they may have to grapple with to make sense of it. This, in turn, helps them to develop skills such as collaboration and communication, thus equipping them with the necessary skills for life in the 21st century.
Global learning that values diversity and community is achieved through planning learning experiences and journeys linked to our curriculum drivers.
Global Curriculum
Possibilities Sport Initiative
At the heart of our global learning curriculum is the Chris Quigley Essentials Curriculum, which sets out essential coverage, learning objectives and standards, which are required for all subjects. Furthermore, it provides progress measures for all subjects including personal development.
One of the primary reasons why we have chosen to adopt this curriculum and have the global curriculum running alongside of this is because it emphasises the importance of developing the depth of children’s learning. In essence, this means providing children with increased challenge, allowing them to apply the skills, which they have learnt independently in a range of contexts, rather than moving them onto the next skill needlessly when they have not truly mastered it.
Curriculum Mapping
Our curriculum is mapped in the following way:
1. Progression maps are created using the National Curriculum and Curriculum Essentials.
2. Yearly overviews are created to map out progression of knowledge and skills across the year for each subject.
3. Medium term plans are then made thinking about an enquiry based question and the key concepts that will be covered that half term/term.
4. The knowledge that children need to acquire is placed into a knowledge organiser that children can refer to in their lessons and books.
5. Concept maps are then made to show a clear sequence of lessons that our children can refer to.
6. Lesson flipcharts are then created making reference to knowledge organisers and concept maps.
Chris Quigley Milestone/End Points
subject will have its own Milestones. These Milestones are broken down into three areas. By the end of each Milestone, children in Year 1, 3 and 5 will be at a basic level in that particular subject area and children in Year 2, 4 and 6 will be at an advancing level. All staff use these Milestones to plan their lessons and are therefore aware of their children’s end points.
Global Curriculum
Knowledge, Skills and Values and Attitudes
If you would like more information regarding our Curriculum please contact Mrs Crothers- 0114 2494036.
|
__label__pos
| 0.99586 |
A new discovery revealed that a famous Russian monument is almost a couple thousand years more ancient than previously thought. The codes engraved on the wooden statue, however, remain a mystery up to now.
Originally 5.3 meters tall, the Big Shigir Idol lost about two meters of its height during the political turmoil of 20th century Russia. It still currently stands tall at about 2.8 meters, and is enclosed in a controlled glass box for viewing at the Sverdlovsk Regional History Museum in Russia.
The Big Shigir has an actual face, complete with eyes, a nose and mouth. Its flat body is covered with geometrical motifs whose meanings are up to now unknown. The Big Shigir Idol is believed to have existed thousands of years even before the pyramids of Egypt and the Stonehenge. The massive wooden monument fell into a peat bog in western Siberia, and remained there for thousands of years, until it was discovered in 1894.
In 1997, scientists used radiocarbon dating in an initial analysis and found the wooden statue to date back to approximately 9,500 years. Just this year, researchers used a different method and found that the Idol is much older, roughly 11,000 years old. German scientists took a few wooden samples from the statue and placed them inside an accelerated mass meter. The seven small samples revealed that the Big Shigir Idol is actually about 1.5 thousand years older than previously believed.
"The results exceeded our expectations," said Thomas Terberger, a professor at the Department of Cultural Heritage of Lower Saxony, who also took part in the new analysis that dated the statue.
"This is an extremely important data for the international scientific community," he added, highlighting developments of civilization and Eurasian art.
"We can say that in those times, 11,000 years ago, the hunters, fishermen and gatherers of the Urals were no less developed than the farmers of the Middle East."
While the scientists brag of this new discovery on the Idol's age, the codes engraved on it remain an unsolved puzzle. According to Svetlana Savchenko, Shigir's chief keeper at the museum, a straight line could represent land, or probably horizon. It could denote the boundary between the sky and earth or water, or the "borderline between worlds." A wavy line, on the other hand, represented water, a snake, a lizard or a certain border. A zigzag line was also a representation of danger, say, a pike. Shapes like the circle, square, rhombus or cross depicted the sun or fire.
Experts, however, cannot really say for now what exactly those codes mean. While they figure out what message the Big Shigir Idol's creators were trying to send out through the statue, scientists emphasize how people at the time had intellectually advanced in a 'complicated spiritual world.'
|
__label__pos
| 0.929326 |
Question: How is thermoluminescence used to date ancient artifacts?
What type of artifacts can thermoluminescence be used to date?
How accurate is thermoluminescence?
Using oxygen and lithium ions from the Tandem accelerator at the National Institute of Nuclear Physics (INFN) in Florence, researchers found that their measurements were accurate to within 1%, despite large fluctuations in the irradiation beam.
Say hello
Find us at the office
Hostler- Pertzborn street no. 57, 67563 Kigali, Rwanda
Give us a ring
Anterio Ruebush
+29 780 790 988
Mon - Fri, 8:00-17:00
Contact us
|
__label__pos
| 0.995457 |
ALPHA v0.3
I Don'T Understand What People Are Complaining About These Days
Topic: g-rated
"I don't understand what people are complaining about these days," the barber was telling his customer. "My grandfather made a fortune, and he did it knowing only three words in English: 'Stick 'em up.'"
ALPHA v0.3
|
__label__pos
| 0.999961 |
About Seesaw Sign Up
Teachers, save “Bibi's Explosive Language” to assign it to your class.
Kiara Mickel
Student Instructions
Bibi's Explosive Language
Throughout Boy Overboard, Morris Gleitzman has portrayed Bibi as an aggressive young girl who expresses her frustration verbally through explosive language. Your Task: Locate some (at least 4) examples of Bibi's explosive language and explain what she means by them. EXTENSION: Why would Morris Gleitzman have created Bibi to be perceived by the readers as an aggressive young girl? Is this crucial to the storyline? 1. Tap the add button. 2. Select the drawing option. 3. Use the label to add your examples and explanations of Bibi's explosive language. 4. If you have time, add a picture using the drawing tool. 5. Tap the check to add to your portfolio.
7th Grade, 6th Grade, Reading, Writing
71 teachers like this
|
__label__pos
| 0.99999 |
Arquivos da categoria: allen escort services near me
Non digital internet dating application uffix at the end of their name’s in identification of non-binary men and women an
A newly-discovered ant may be the first pet species to be given a scientific term ending with ‘they’, in a tribute to non-binary group.
The miniature pitfall mouth ant from evergreen tropical forests of Ecuador was given the unconventional Latin term Strumigenys ayersthey.
The ‘they’ suffix at the conclusion of the name’s in acceptance of all non-binary everyone and a function of gender diversity.
‘Non-binary’ is a phrase used to explain individuals who do not recognize as either masculine or feminine.
Non-binary anyone, like the British pop celebrity Sam Smith, therefore want to be named ‘they’ and ‘them’ rather than ‘he’ and ‘him’, or ‘she’ and ‘her’.
a side view of Strumigenys ayersthey – called the only real species in the world to possess a medical name making use of suffix -they
brielle biermann dating
‘Non-binary’ are a term used to describe people who don’t diagnose as either masculine or feminine.
The idea there are only two genders is frequently labeled as a ‘gender digital’, because binary way ‘having two section’ (female and male).
Consequently, ‘non-binary’ is only one label men and women use to explain sexes that dont fall into one of these simple two categories, female or male.
Leia mais
|
__label__pos
| 0.973683 |
What Is Tonicity Quizlet?
What is tonicity quizlet? Tonicity. A description of the relative solute concentration in a solution as compared to another solution. Equilibrium. The condition that exists in system when there is a relatively equal distribution of a particular molecule. Hypertonic.
Also to know is, What is tonicity and how does it affect the condition of the cell quizlet?
When a cell is placed in a highly concentrated solution, water molecules will move out of the cell causing it to shrink and die.
Moreover, Which of the following is the measure of the tonicity of a solution? The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity. Three terms—hypotonic, isotonic, and hypertonic—are used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells.
As well as, Which membrane transport process will continue on even though the cell may be alive or dead?
Which membrane transport process can continue whether the cell is alive or dead? pinocytosis.
What is tonicity in biology?
Tonicity is defined as the ability of a solution surrounding a cell to cause that cell to gain or lose water (Urry et al., 2017). While osmolarity is an absolute quantity, tonicity is relative. If two solutions have the same concentration of nonpenetrating solutes, they are considered isotonic.
Related Question for What Is Tonicity Quizlet?
What is the tonicity of the cell?
Tonicity is the capability of a solution to modify the volume of cells by altering their water content. The movement of water into a cell can lead to hypotonicity or hypertonicity when water moves out of the cell.
What is tonicity of solutions?
What is an example of a hypertonic solution?
Hypertonic solutions have a higher concentration of electrolytes than plasma. Common examples of hypertonic solutions are D5 in 0.9% normal saline and D5 in lactated ringers. The administration of hypertonic solutions should be monitored extremely closely, as they can quickly lead to fluid overload.
What happens to vesicles after endocytosis?
At the beginning it is formed from the cell membrane as part of this membrane engulfs some material from outside. Then this formed vesicle is fused with other vesicles which contains digestive enzymes. The components of it are absorbed by the cell after being digested. Then it is recycled.
How are vesicles involved in endocytosis and exocytosis?
Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane, and bringing it into the cell. Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell.
Does phagocytosis use vesicles?
Phagocytosis is a special form of endocytosis in which large particles such as microorganisms and dead cells are ingested via large endocytic vesicles called phagosomes.
What is an example of tonicity?
EXAMPLES. Tonicity is the reason why salt water fish cannot live in fresh water and vice versa. A salt water fish's cells have evolved to have a very high solute concentration to match the high osmolarity of the salt water they live in.
Is tonicity a form of osmosis?
The ability of an extracellular solution to make water move into or out of a cell by osmosis is known as its tonicity. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.
How is tonicity related to osmosis?
Tonicity describes how an extracellular solution can change the volume of a cell by affecting osmosis. A solution with low osmolarity has a greater number of water molecules relative to the number of solute particles; a solution with high osmolarity has fewer water molecules with respect to solute particles.
What's the relationship between osmosis and tonicity?
“Tonicity is the ability of a solution to affect the fluid volume and pressure in a cell. If a solute cannot pass through a plasma membrane, but remains more concentrated on one side of the membrane than on the other, it causes osmosis.”
How is tonicity measured?
Tonicity is a measure of the relative concentration of non-penetrating solute on either side of a membrane. It uses the same units as molarity or osmolarity, but unlike these other measurements includes only non-penetrating solutes in the calculation. Determine the number of moles of solute.
What cells need this tonicity to be at homeostasis?
Animal cells need to be in isotonic solutions to be at homeostasis. Homeostasis is a balance and is important for all living things to maintain.
What is meant by the tonicity of a solution quizlet?
Terms in this set (28)
Osmotic pressure of a solution is the pressure that must be applied to completely stop the movement of water by osmosis. Define tonicity. Tonicity of a solution refers to the effect the non-penetrating solute concentration and movement of water by osmosis has on cell volume.
What tonicity of solution would lead to a cell shriveling quizlet?
This is an example of a hypertonic solution, which will cause the plant cells to shrivel up and die, since they need to be in a hypotonic solution to thrive. You just studied 4 terms!
Is tonicity due to a solution containing a permeable or impermeable solute?
Tonicity is a measure of the relative concentration of solute particles on either side of a semi-permeable membrane (e.g. inside a cell versus outside the cell). Only solutes that cannot cross the membrane contribute to tonicity.
How does dextrose affect tonicity?
The tonicity is determined by comparing the concentration of nonpenetrating solutes, those that cannot enter the cell, in the solution to the concentration of the cell. A solution of 5% dextrose has zero nonpenetrating solutes, and therefore, it is hypotonic.
Is D5NS a hypertonic solution?
Compared with intracellular fluids, hypertonic solutions have a higher concentration of solids. These are some examples of hypertonic solutions: D10W (dextrose 10% in water), D5NS (dextrose 5% in . 9% sodium chloride), D5 12 NS (dextrose 5% in . 45% sodium chloride), and D5LR (dextrose 5% in lactated ringer).
What is hypotonic solution example?
A hypotonic solution is a solution that has a lower concentration of solute compared to the cell. A hypotonic solution example is salt water. The salt is the solute, and the water is the solvent.
Was this helpful?
0 / 0
Leave a Reply 0
|
__label__pos
| 0.915666 |
• Member for 1 year, 7 months
• Last seen more than a month ago
What's the difference between 囚犯, 囚徒, 犯人 and 囚 and how does it affect a sentence?
2 votes
囚犯, this word is the ancient Chinese language, and the usage scenario is usually in ancient China. This word is used to refer to those who have been caught and convicted 囚徒, the word is also an ...
View answer
Is a morpheme bound or is it free: any online source?
1 votes
As far as I know, this is not a free combination. China has official word statistics. This is used to guide everyday language. The use of words is generally restricted by these official data. If some ...
View answer
|
__label__pos
| 0.798561 |
Declaration of Independence a document written in 1776 in which the American colonists proclaimed their independence from Great Britain and listed their grievances against the British king
natural rights the right to life, liberty, and property; believed to be given by God; no government may take away
social contract an agreement between people and government in which citizens consent to be governed so long as the government protects their natural rights
The Articles of Confederation
Articles of Confederation the first basis for the new nation’s government; adopted in 1781; created an alliance of sovereign states held together by a weak central government
confederation a highly decentralized form of government; sovereign states form a union for purposes such as mutual defense
republic a form of government in which political power rests in the hands of the people, not a monarch, and is exercised by elected representatives
The Development of the Constitution
bicameral legislature a legislature with two houses, such as the U.S. Congress
checks and balances a system that allows one branch of government to limit the exercise of power by another branch; requires the different parts of government to work together
enumerated powers the powers given explicitly to the federal government by the Constitution (Article I, Section 8); power to regulate interstate and foreign commerce, raise and support armies, declare war, coin money, and conduct foreign affairs
federal system a form of government in which power is divided between state governments and a national government
Great Compromise a compromise between the Virginia Plan and the New Jersey Plan that created a two-house Congress; representation based on population in the House of Representatives and equal representation of states in the Senate
New Jersey Plan a plan that called for a one-house national legislature; each state would receive one vote
reserved powers any powers not prohibited by the Constitution or delegated to the national government; powers reserved to the states and denied to the federal government
separation of powers the sharing of powers among three separate branches of government
supremacy clause the statement in Article VI of the Constitution that federal law is superior to laws passed by state legislatures
Three-Fifths Compromise a compromise between northern and southern states that called for counting of all a state’s free population and 60 percent of its slave population for both federal taxation and representation in Congress
unicameral legislature a legislature with only one house, like the Confederation Congress or the legislature proposed by the New Jersey Plan
veto the power of the president to reject a law proposed by Congress
Virginia Plan a plan for a two-house legislature; representatives would be elected to the lower house based on each state’s population; representatives for the upper house would be chosen by the lower house
The Ratification of the Constitution
Anti-Federalists those who did not support ratification of the Constitution
Federalists those who supported ratification of the Constitution
The Federalist Papers a collection of eighty-five essays written by Alexander Hamilton, James Madison, and John Jay in support of ratification of the Constitution
Constitutional Change
Bill of Rights the first ten amendments to the U.S. Constitution; most were designed to protect fundamental rights and liberties
|
__label__pos
| 0.999411 |
My Pathway to PBL
In 2008, I was hired to teach on the music faculty at Texas A & M – Commerce. Great job. Great people there. On my contract, the final sentence said “other duties as assigned,” and one of those dates ended up being a music technology course. I had no experience teaching a class like that and no formal training in a class like that, but that didn’t change the fact that I was going to teach it. So, I got started on figuring out how to do that and not feel like an idiot in the process.
The first step was to find an existing syllabus, of which there was none to be found. The next step was to ask the faculty what had been covered in the class in the past, which nobody really knew (this is not uncommon). There was a textbook that had been used, but it was not geared towards the population of students I was going to be teaching (according to my boss….and he wasn’t wrong). So, the next logical step was to get a sense from the faculty (and my bosses) what they would like me to cover in the course.
What I got was a laundry list of softwares and technologies students should be able to know, many of which were incredibly outdated or not relevant to the entire class. For example, being able to use a drill writing software like Pyware or EnVision is not going to be a meaningful exercise for people who intent to teach choir, orchestra, elementary, or middle school. It is also a really difficult to learn, because it requires knowledge in other areas besides just how to operate the software. This left me with these questions to resolve:
1. What softwares and skills are transferable across all students in the class?
2. What can we reasonably expect students to be able to know and be able to do within the confines of the semester and technological resources available.
3. What kinds of activities and assessments can we create to achieve these goals?
The result was a series of projects that centered around 3 main areas of being a music teacher and how technology could be used to serve them. Those areas were teaching, creativity, and administration. Projects were designed to scaffold learners in a way that not only helped them gain knowledge and understanding of software, but how to leverage those skills against their own interests to create new knowledge and digital fluency. Some projects were the same across degree tracks (choral, instrumental, general music, etc), while others were specific to each tracks. Examples of projects that remained consistent across tracks included the missing part assignment and the digital audio assignments, while some of the projects that bifurcated were the orchestration projects and the final projects.
The result was something unexpected. Students got really into the projects and we all ended up helping each other learn together. Eventually I became the most knowledge person in the room with respect to the various technologies, but we never stopped learning together. With each passing year, I found that the more interesting and authentic assignments were and the more they allowed for students’ interests and creativity to come out, the more wonderful the projects became.
Years later, I came to understand that this approach was known as Problem Based Learning (PBL) and Authentic Context Learning (ACL). These approaches have become huge interests of mine across all domains of learning and have had some wonderful experiences in classes that use them in areas like the Applied Statistics program at Penn State. Now, as I finish my PhD in the time of Covid-19, I see the importance of creating meaningful projects that students and teachers can both learn from to increase engagement and understanding. Below are some examples of projects I have developed in the past for any of those that are interested:
Music Notation Projects:
1. Recreate a Score
2. Tranform a Score
3. Creating & Composing with Music Notation Software
Digital Audio Projects:
1. Recording & Editing Project
2. Digital Audio Transformation Project
3. Composing & Creating with Digital Audio Workstations
Music Administration:
1. Data Cleaning Project
2. Tracking Expenses
3. Create a Mail Merge
Author: Scott Atchison
Leave a Reply
You are commenting using your account. Log Out / Change )
Google photo
Twitter picture
Facebook photo
Connecting to %s
%d bloggers like this:
|
__label__pos
| 0.899646 |
Seeking A Nation
Seeking A Nation - A Warrior's Journey
With your eagle-like eyes following the trajectory of the man's punch, you quickly push against his arm as it sails forward to spin him into hitting an innocent passerby right in the jaw. The outraged man engages the drunk with fury, and you sip your drink while watching the violent spectacle. After the entire affair plays out and the loud band of men leave, you ask the bartender how you might be able to meet with the emperor. The man simply chuckles and walks away, leaving you bewildered and confused as to his unfruitful reply.
Start Over
For any questions or concerns, contact at: [email protected]
|
__label__pos
| 0.960568 |
Your question: What does Piaget’s 3 Mountain task illustrate?
What is Piaget’s three mountain task?
The Three Mountain Task was developed by Jean Piaget and Bärbel Inhelder in the 1940s to study children’s ability to coordinate spatial perspectives. In the task, a child faced a display of three model mountains while a researcher placed a doll at different viewpoints of the display.
What is the mountain test?
This protocol describes the administration of the 4 Mountains Test (4MT), a short test of spatial memory, in which memory for the topographical layout of four mountains within a computer-generated landscape is tested using a delayed match-to-sample paradigm.
What did Piaget’s experiment demonstrate?
As infants cannot speak, Piaget developed a few creative experiments in an effort to understand what they were thinking. His experiments were able to demonstrate that infants do represent objects and understand that they are permanent. In one of his experiments, Piaget consistently hid a toy underneath a blanket.
What does the 3 mountain task test?
Piaget developed the Three-Mountain Task to determine the level of egocentrism displayed by children. Children view a 3-dimensional mountain scene from one viewpoint, and are asked what another person at a different viewpoint would see in the same scene.
What are the three characteristics of preoperational thinking?
Three main characteristics of preoperational thinking are centration, static reasoning and irreversibility.
THIS IS INTERESTING: Are there any mountains still unclimbed?
What is an example of egocentric thinking?
Egocentric thinking is the normal tendency for a young child to see everything that happens as it relates to him- or herself. … For example, if a child wants very much for something to happen, and it does, the child believes he or she caused it to happen.
What tasks is the mountain unable to perform?
dancing and breathing is unable to preform on the mountain at the peak level.
What are the 7 stages of development?
|
__label__pos
| 0.978781 |
Leetcode 1452: People Whose List of Favorite Companies Is Not a Subset of Another List
In this Leetcode problem, we are given a list of (distinct) sets and we should return the indices (sorted) for which the sets are not subsets of other sets in the list.
Problem statement
Before giving the whole solution, let’s talk about the main ideas to solve the problem:
|
__label__pos
| 0.984437 |
Solution to Leetcode 1608: Special Array With X Elements Greater Than or Equal X
In this Leetcode problem, given an array nums we want to find an integer x such that there are exactly x elements in nums greater or equal to x.
You are given an array nums of non-negative integers. nums is considered special if there exists a number x such that there are exactly x numbers in nums that are greater than or equal to x.
Notice that x does not have to be an element in nums.
Return x if the array is special, otherwise, return -1. It…
|
__label__pos
| 1 |
[Get Answer] What is artificial sanity? Argue your own side of the case.
Go to http://sciencecases.lib.buffalo.edu/cs/collection/ Type “Josie” in the Keyword Box and download the case
This case study is divided into 6 parts. After each part there are a series of questions. Jot down your initial impressions after each part.
Then, answer the following questions and discuss the case with your classmates.
1. Tell the class a brief history of this case.
2. Discuss the presenting problem, i.e., in the beginning did you think Josie was physically or mentally ill? How or why did your thoughts change?
3. What kind of treatment strategy would you recommend? Mention theoretical perspectives, or interventions/techniques and prognosis.
Other considerations (answer at least two of the following)
4. Do you think that Josie’s behavior or appearance influenced the care she received? Why? How did this impact her case?
5. What questions still remain? What other information would help you decide what is wrong with Josie?
6. With respect to the general public, how has the treatment of the mentally ill changed over time?
7. Do you think that medical professionals are sufficiently trained to differentiate medical from psychological illness? Why or why not? Can you give us an example of another illness which presents as a psychological concern but is chemically based?
Artificial Sanity
Please go to the following case:
Place New Order
It's Free, Fast & Safe
Hey, wait!You Don't want to miss this offer!
|
__label__pos
| 0.96504 |
Please login or create an account to join the discussion.
Food preservation
Food preservation encompasses the processes and techniques that are used to prevent food from spoiling, including canning, pickling, salting, drying, smoking, chilling, fermenting, pasteurising, and the addition of chemicals such as sodium benzoate (which dissolves in food as an acid). These measures inhibit the growth and survival of microorganisms that spoil food. Food preservation can be understood as a form of food processing.
|
__label__pos
| 0.950562 |
Gateway to the Classics: Display Item
Arthur Scott Bailey
A Queer Place To Live
T HE village near one end of Pleasant Valley where Farmer Green often went to sell butter and eggs was not the only village to be seen from Blue Mountain. There was another which Farmer Green seldom visited, because it lay beyond the mountain and was a long distance from his house. Though he owned the land where it stood, those that lived there thought they had every right to stay there as long as they pleased, without being disturbed.
It was in this village that Brownie Beaver and his neighbors lived. It was a different sort of town, too, from the one where Farmer Green went each week. Over beyond Blue Mountain all the houses were built in a pond. And all their doors were under water. But nobody minded that because—like Brownie Beaver—everybody that dwelt there was a fine swimmer.
Years and years before Brownie's time his forefathers had come there, and finding that there were many trees in the neighborhood with the sort of bark they liked to eat—such as poplars, willows and box elders—they had decided that it was a good place to live. There was a small stream, too, which was really the beginning of Swift River. And by damming it those old settlers made a pond in which they could build their houses.
They had ideas of their own as to what a house should be like—and very good ideas they were—though you, perhaps, might not care for them at all. They wanted their houses to be surrounded by water, because they thought they were safer when built in that manner. And they always insisted that a door leading into a house should be far beneath the surface of the water, for they believed that that made a house safer too.
To you such an idea may seem very strange. But if you were chased by an enemy you might be glad to be able to swim under water, down to the bottom of a pond, and slip inside a door which led to a winding hall, which in its turn led upwards into your house.
Of course, your enemy might be able to swim as well as you. But maybe he would think twice—or even three times—before he went prowling through your crooked hall. For if you had enormous, strong, sharp teeth—with which you could gnaw right through a tree—he would not care to have you seize him as he poked his head around a corner in a dark passage of a strange house.
It was in a house of that kind that Brownie Beaver lived. And he built it himself, because he said he would rather have a neat, new house than one of the big, old dwellings that had been built many years before, when his great-great-grandfather had helped throw the dam across the stream.
The dam was there still. It was so old that trees were growing on it. And there was an odd thing about it: it was never finished. Though Brownie Beaver was a young chap, he worked on the dam sometimes, like all his neighbors. You see, the villagers kept making the dam wider. And since it was built of sticks and mud, the water sometimes washed bits of it away; so it had to be kept in repair.
If Brownie Beaver and his friends had neglected their dam, they would have waked up some day and found that their pond was empty; and without any water to hide their doorways they would have been safe no longer.
They would have had no place, either, to store their winter's food. For they were in the habit of cutting down trees and saving the bark and branches too, in order to have plenty to eat when cold weather came and the ice closed their pond.
Some of their food they carried into their houses through a straight hall which was made for that very purpose. And some of the branches they fastened under water, near the dam. It was just like putting green things into a refrigerator, so they will keep.
Now you see why Brownie Beaver would no more have thought of building his house on dry land than you would think of building one in a pond. Everybody likes his own way best. And it never once occurred to Brownie Beaver that his way was the least bit strange.
Perhaps it was because his family had always lived in that fashion.
|
__label__pos
| 0.831986 |
Often asked: What Are Rabbit Babies Called?
Why are baby rabbits called bunnies?
Bunny was originally (and sometimes still is) used as a term of endearment for a young girl. Over time, it started to mean a young and/or small animal, and now it usually means a rabbit. The word hare was dropped on its way across the Atlantic and the fuzzier, cuddlier word bunny was applied in its place.
Is a group of baby bunnies called a Fluffle?
Did you know that a group of bunnies is called a fluffle? A fluffle is what our neighbors to the north, in Canada, call a group or herd of rabbits.
What is a male hare called?
A male hare is called a jack, a female is a jill.
Are rabbits smart?
Why are rabbits so adorable?
Rabbits are cute because they have really soft fur and cute round big eyes. They are cute because they are small and cuddly. They remind most people of a soft toy. Rabbits are cute because they have soft velvet ears and a little nose that is always twitches.
You might be interested: FAQ: How To Build Rabbit Cages For Breeding?
What is a group of humans called?
Community,gathering,crowd,mob,guerillas’ or terrorists! There are all sorts of words for groups of humans: nation, corporation, family, club, mob, gang, etc etc.
What is a group of unicorns called?
Yes. The term most commonly used and accepted for a group of unicorns seems to be a blessing of unicorns.
What is a female bunny called?
What’s a baby hare called?
Newborn hares, called leverets, are fully developed at birth —furred with open eyes—while newborn rabbits, called kittens or kits, are born undeveloped, with closed eyes, no fur, and an inability to regulate their own temperature, Stott said.
Do rabbits have black tips on their ears?
Hares have much larger ears and hind legs than rabbits. Their ears also have a black tip. Rabbits can often be found in large groups, but hares are more solitary. Rabbits and hares raise their young differently.
What is a Leveret?
leveret in British English (ˈlɛvərɪt, -vrɪt) a young hare, esp one less than one year old.
Do rabbits cuddle with you?
Do rabbits like music?
You might be interested: Readers ask: How To Make A Wire Rabbit Cage?
Do rabbits recognize their owners?
Leave a Reply
|
__label__pos
| 0.949504 |
PT - JOURNAL ARTICLE AU - Chamat, S AU - Hoebeke, J AU - Emorine, L AU - Guillet, J G AU - Strosberg, A D TI - The immune response towards beta-adrenergic ligands and their receptors. VI. Idiotypy of monoclonal anti-alprenolol antibodies. DP - 1986 May 15 TA - The Journal of Immunology PG - 3805--3811 VI - 136 IP - 10 4099 - 4100 - SO - J. Immunol.1986 May 15; 136 AB - Four murine monoclonal antibodies specific for alprenolol, a synthetic beta-adrenergic ligand, with different binding properties towards alprenolol and other beta-adrenergic antagonists and agonists (as described in a previous report) were used to induce anti-idiotypic responses in rabbits and mice. Three of the rabbit anti-idiotypes inhibited, and one increased the binding of tritiated dihydroalprenolol to the Ab1 against which they were induced. The syngeneic mouse anti-idiotypes all had an inhibitory effect on the ligand binding to their corresponding Ab1. Cross-reactivity tests of the xenogeneic and syngeneic anti-idiotypes were positive only for two monoclonal anti-alprenolol antibodies. Cross-reaction could be shown neither on a panel of 15 other monoclonals, nor on polyclonal anti-alprenolol antibodies of the BALB/c and the C57BL/10 mice. These results suggest that the immune response against alprenolol results in antibodies with mostly private idiotypic determinants. Moreover, the properties of the anti-idiotypic response against the same monoclonal antibody seem to be different according to the species used for anti-idiotypic induction.
|
__label__pos
| 0.904224 |
Get 10% off in our JANUARY SALE - SEE CODE.
Exo Terra Forest Canopy LED 8W - Terrarium lighting
Self-ballasted and screw-based forest canopy light
At a glance...
• 6500K canopy light bulb that simulates sunlight conditions in tropical rainforests
• Energy-efficient plant growth LED
• Ideal light source for bio-active planted terrariums
In stock
From £22.99 Regular Price £29.99
What is the Exo Terra Forest Canopy LED 8W?
The Exo Terra Forest Canopy LED 8W is a specially designed bulb that is ideal for use in bioactive planted terrariums. Thanks to the bulb's ES screw fitting, it just needs to be screwed in and you'll be good to go. The bulb can then be pivoted up to 300 degrees, shedding light exactly where you want it in your terrarium. This bulb specifically recreates the sunlight found in the leafy canopy of the rainforest, making it ideal for reptiles, amphibians and invertebrates.
What are the benefits of the Exo Terra Forest Canopy LED 8W?
The Exo Terra Forest Canopy LED 8W bulb is extremely energy-efficient and will easily outlast traditional terrarium bulbs. More importantly, the bulb recreates the natural light quality found in your pet's natural habitat, making it key to the success of your terrarium.
Why do reptiles need light similar to their native habitat?
The right lighting is proven to lower the stress levels of your pet as it helps to make them feel at home, putting them at ease and lowering the chance of stress-induced diseases. Plus, with the right lighting your reptile's, amphibian's and invertebrate's colouration will improve and enhance until it becomes bright and dazzling.
How long will the Exo Terra Forest Canopy LED 8W last?
Exo Terra Forest Canopy LED 8W bulbs have a lifespan of around 50,000 hours. This means that, even if you run the bulb every single day, it should last for plenty of time without needing to be replaced.
Material Plastic
Suitable for Exo Terra Dart Frog Terrarium, Exo Terra Tree Frog Terrarium and any holder/canopy top unit
Adjustable? 300-degree twist
Power 8W
Light type 6500K canopy sunlight LED
Fitting ES screw
Write Your Own Review
You're reviewing:Exo Terra Forest Canopy LED 8W - Terrarium lighting
Your Rating
|
__label__pos
| 0.798167 |
Anatomically, a nose is a protuberance in vertebrate
s that houses the nostril
s, or nares, which admit and expel air for respiration
Respiration (physiology)
'In physiology, respiration is defined as the transport of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction...
in conjunction with the mouth
. Behind the nose are the olfactory mucosa
Olfactory mucosa
The olfactory mucosa is located in the upper region of the nasal cavity and is made up of the olfactory epithelium and the underlying lamina propria, connective tissue containing fibroblasts, blood vessels, Bowman's glands and bundles of fine axons from the olfactory neurons.The mucus protects the...
and the sinuses
Paranasal sinus
Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity , above and between the eyes , and behind the ethmoids...
. Behind the nasal cavity
Nasal cavity
The nasal cavity is a large air filled space above and behind the nose in the middle of the face.- Function :The nasal cavity conditions the air to be received by the other areas of the respiratory tract...
, air next passes through the pharynx
The human pharynx is the part of the throat situated immediately posterior to the mouth and nasal cavity, and anterior to the esophagus and larynx. The human pharynx is conventionally divided into three sections: the nasopharynx , the oropharynx , and the laryngopharynx...
Respiratory system
. In humans, the nose is located centrally on the face; on most other mammal
s, it is on the upper tip of the snout
The snout, or muzzle, is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw.-Terminology:The term "muzzle", used as a noun, can be ambiguous...
Air conditioning
Sense of direction
The wet nose
of dogs is useful for the perception of direction. The sensitive cold receptors in the skin detect the place where the nose is cooled the most and this is the direction a particular smell that the animal just picked up comes from.
Structure in air-breathing forms
In amphibian
Amphibians , are a class of vertebrate animals including animals such as toads, frogs, caecilians, and salamanders. They are characterized as non-amniote ectothermic tetrapods...
s and lungfish
Lungfish are freshwater fish belonging to the Subclass Dipnoi. Lungfish are best known for retaining characteristics primitive within the Osteichthyes, including the ability to breathe air, and structures primitive within Sarcopterygii, including the presence of lobed fins with a well-developed...
Choana is the posterior nasal aperture.The choanae are separated by the vomer.- Boundaries :It is the opening between the nasal cavity and the nasopharynx....
e. These sacs contain a small amount of olfactory epithelium, which, in the case of caecilian
The caecilians are an order of amphibians that superficially resemble earthworms or snakes. They mostly live hidden in the ground, making them the least familiar order of amphibians. All extant caecilians and their closest fossil relatives are grouped as the clade Apoda. They are mostly...
Vomeronasal organ
The vomeronasal organ , or Jacobson's organ, is an auxiliary olfactory sense organ that is found in many animals. It was discovered by Frederik Ruysch and later by Ludwig Jacobson in 1813....
, lined by olfactory epithelium, but, unlike those of amniote
The amniotes are a group of tetrapods that have a terrestrially adapted egg. They include synapsids and sauropsids , as well as their fossil ancestors. Amniote embryos, whether laid as eggs or carried by the female, are protected and aided by several extensive membranes...
s, this is generally a simple sac that, except in salamander
s, has little connection with the rest of the nasal system.
In reptile
s, the nasal chamber is generally larger, with the choanae being located much further back in the roof of the mouth. In crocodilians, the chamber is exceptionally long, helping the animal to breathe while partially submerged. The reptilian nasal chamber is divided into three parts: an anterior vestibule, the main olfactory chamber, and a posterior nasopharynx
The nasopharynx is the uppermost part of the pharynx. It extends from the base of the skull to the upper surface of the soft palate; it differs from the oral and laryngeal parts of the pharynx in that its cavity always remains patent .-Lateral:On its lateral wall is the pharyngeal ostium of the...
In anatomy, a nasal concha is a long, narrow and curled bone shelf that protrudes into the breathing passage of the nose...
s have a similar nose to reptiles, with the nostrils being located at the upper rear part of the beak
s. In many birds, including dove
s and fowl
Fowl is a word for birds in general but usually refers to birds belonging to one of two biological orders, namely the gamefowl or landfowl and the waterfowl...
The nasal cavities are exceptionally large in most mammals, typically occupying up to half the length of the skull. In some groups, however, including primate
s, bat
The palate is the roof of the mouth in humans and other mammals. It separates the oral cavity from the nasal cavity. A similar structure is found in crocodilians, but, in most other tetrapods, the oral and nasal cavities are not truly separate. The palate is divided into two parts, the anterior...
Paranasal sinus
's nose has elaborated into a long, muscular, manipulative organ called the trunk.
In fish
Fish generally have a weak sense of smell, which is generally less important than taste in an aquatic environment. They do, however, possess a nose, although, unlike that of tetrapods, it has no connection with the mouth, nor any role in respiration. Instead, it generally consists of a pair of small pouches located behind the nostrils at the front or sides of the head. In many cases, each of the nostrils is divided into two by a fold of skin, allowing water to flow into the nose through one side and out through the other.
The pouches are lined by olfactory epithelium, and commonly include a series of internal folds to increase the surface area. In some teleosts, the pouches branch off into additional sinus-like cavities, while in coelacanth
Coelacanths are members of an order of fish that includes the oldest living lineage of Sarcopterygii known to date....
s, they form a series of tubes. Unlike tetrapods, the nasal epithelium of fishes does not include any mucus
In vertebrates, mucus is a slippery secretion produced by, and covering, mucous membranes. Mucous fluid is typically produced from mucous cells found in mucous glands. Mucous cells secrete products that are rich in glycoproteins and water. Mucous fluid may also originate from mixed glands, which...
-secreting cells, since it is already naturally moist.
In the most primitive living vertebrates, the lamprey
s and hagfish
Hagfish, the clade Myxini , are eel-shaped slime-producing marine animals . They are the only living animals that have a skull but not a vertebral column. Along with lampreys, hagfish are jawless and are living fossils whose next nearest relatives include all vertebrates...
, there is only one nostril and olfactory pouch. Indeed, the nostril also opens into the hypophysis
Pituitary gland
In vertebrate anatomy the pituitary gland, or hypophysis, is an endocrine gland about the size of a pea and weighing 0.5 g , in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain, and rests in a small, bony cavity covered by a dural fold...
. This is not necessarily, however, a primitive trait, but one that may have arisen later in the evolution of these particular groups. For example, the fossil heterostracans had paired nostrils, and these were also a very early vertebrate group.
See also
• Human nose
Human nose
• Nasal bridge
Nasal bridge
The nasal bridge is the name given to the upper, bony part of the nose, overlying the nasal bones.A lower or higher than average nasal bridge can be a sign of various genetic disorders, such as fetal alcohol syndrome. A flat nasal bridge can be a sign of Down syndrome, Fragile X syndrome, and Fetal...
• Rhinarium
, the wet, naked surface around the nostrils in most mammals, absent in haplorrhine
The haplorhines, the "dry-nosed" primates , are members of the Haplorhini clade: the prosimian tarsiers and the anthropoids...
primates such as humans
|
__label__pos
| 0.859724 |
Busy Artists!
In art, the children have been looking at the painting, ‘Castle and Sun’ by Paul Klee. They have learnt about all the different shapes that can be seen in the painting and they are working on their own designs inspired by the original. Once they have planned their own castle they will then draw around each shape using a white oil pastel. The next step is to design their own colour palette, using bright oil pastels, to fill in the shapes. Finally, the children will use a paint ‘wash’ to created the background.
Look out for the finished works of art!
|
__label__pos
| 0.998275 |
Frequent question: Why is gel electrophoresis important in forensic science?
Electrophoresis can be used to analyze proteins, including those found in human blood. … Thus, this application may be useful in forensics to discover any injected substances in the blood or the presence of diseases in suspects.
Why is gel electrophoresis important in forensics?
[Editors note: DNA fingerprinting uses gel electrophoresis to distinguish between samples of the genetic material. The human DNA molecules are treated with enzymes that chop them at certain characteristic points, thereby reducing the DNA to a collection of more manageably sized pieces.
How does gel electrophoresis help solve crimes?
Gel electrophoresis is used to create DNA fingerprints from crime scene and suspect samples. A match between samples suggests which suspect committed the crime.
What is gel electrophoresis in forensic science?
Gel electrophoresis is an analytical method for the separation, identification and analysis of biological molecules, including DNA, RNA and proteins, in an electric field.
IMPORTANT: Why is forensic anthropology an important part of forensic science What does this area add to the investigation of crime?
How is electrophoresis used in forensic analysis?
Electrophoresis analysis is used in forensics to compare DNA, in medical laboratories to do genetic testing, and in microbiology labs to identify microorganisms. In addition to analyzing proteins or DNA, electrophoresis is also used to create purified samples of proteins.
Why does gel electrophoresis work?
An electric current is used to move molecules to be separated through a gel. Pores in the gel work like a sieve, allowing smaller molecules to move faster than larger molecules. The conditions used during electrophoresis can be adjusted to separate molecules in a desired size range.
Why is gel electrophoresis used?
Gel electrophoresis is a technique used to separate DNA fragments (or other macromolecules, such as RNA and proteins) based on their size and charge. … Using electrophoresis, we can see how many different DNA fragments are present in a sample and how large they are relative to one another.
What is gel electrophoresis and why is it important?
Gel electrophoresis and DNA
Electrophoresis enables you to distinguish DNA fragments of different lengths. DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode.
What is electrophoresis and its application?
Electrophoresis is a process that enables lab professionals to isolate organic molecules and research them as part of biomedical analysis. … Using gel as a medium, researchers can stratify DNA into segments using an electrical charge and keep the molecules in place once the charge is removed.
What are the benefits of DNA profiling?
Using DNA profiles to determine paternity
IMPORTANT: What is handwriting in criminology?
Advantages Disadvantages
DNA profiles can be used to determine paternity Storage of DNA profiles can be seen as an invasion of privacy
DNA profiles can be used to identify genetic disorders early Theft of DNA profiles from a database is a real threat
When has gel electrophoresis been used?
Electrophoresis was successfully used to separate DNA and RNA samples beginning in the 1960s. Initially, agar, a natural carbohydrate, was used as a separation medium for electrophoresis, but this was replaced in the late 1960s by agarose, a polysaccharide which is one of the main components of agar.
How is gel electrophoresis used in forensic science?
Gel Electrophoresis is used at crime scenes. For example say a forensic scientist sits in her lab with three DNA samples in front of her. One sample is the DNA left behind at the crime scene by the criminal; the other two samples are DNA from possible suspects.
Why agarose gel is used for DNA?
DESCRIPTION. Agarose gel electrophoresis is used to resolve DNA fragments on the basis of their molecular weight. Smaller fragments migrate faster than larger ones; the distance migrated on the gel varies inversely with the logarithm of the molecular weight.
What is an electrophoresis machine used for?
Electrophoresis is a commonly used laboratory technique which uses electrical energy to separate molecules such as proteins or nucleic acids by their size, structure, and electrical charge. Electrophoresis work poses potential electrical, chemical and physical safety hazards.
What is the principle of electrophoresis?
Principle of electrophoresis:
When a potential difference is applied, the molecules with different overall charge will begin to separate owing to their different electrophoretic mobility.
IMPORTANT: How do I become a forensic science technician in South Africa?
What are two common reasons why a forensic scientist might use gel electrophoresis?
Electrophoresis can be used to analyze proteins, including those found in human blood. Unlike DNA or RNA, proteins may not be charged. Hence, the sample is often treated with a detergent called sodium dodecyl sulfate.
Legal blog
|
__label__pos
| 0.956513 |
The urinary system has roles you may be well aware of: cleansing the blood and ridding the body of wastes probably come to mind. However, there are additional, equally important functions played by the system. Take for example, regulation of pH, a function shared with the lungs and the buffers in the blood. Additionally, the regulation of blood pressure is a role shared with the heart and blood vessels. What about regulating the concentration of solutes in the blood? Did you know that the kidney is important in determining the concentration of red blood cells? Eighty-five percent of the erythropoietin (EPO) produced to stimulate red blood cell production is produced in the kidneys. The kidneys also perform the final synthesis step of vitamin D production, converting calcidiol to calcitriol, the active form of vitamin D.
If the kidneys fail, these functions are compromised or lost altogether, with devastating effects on homeostasis. The affected individual might experience weakness, lethargy, shortness of breath, anemia, widespread edema (swelling), metabolic acidosis, rising potassium levels, heart arrhythmias, and more. Each of these functions is vital to your well-being and survival. The urinary system, controlled by the nervous system, also stores urine until a convenient time for disposal and then provides the anatomical structures to transport this waste liquid to the outside of the body. Failure of nervous control or the anatomical structures leading to a loss of control of urination results in a condition called incontinence.
This chapter will help you to understand the anatomy of the urinary system and how it enables the physiologic functions critical to homeostasis. It is best to think of the kidney as a regulator of plasma makeup rather than simply a urine producer. As you read each section, ask yourself this question: “What happens if this does not work?” This question will help you to understand how the urinary system maintains homeostasis and affects all the other systems of the body and the quality of one’s life.
|
__label__pos
| 0.72261 |
Does meiosis undergo interphase?
Does mitosis and meiosis have interphase?
Both mitosis and meiosis are multistage processes. The stages are interphase, prophase, metaphase, anaphase and telophase. The same general processes occur in each of these stages for mitosis and meiosis. Interphase is cell growth and DNA replication in preparation for cell division.
Does interphase undergo mitosis?
Although we often talk about interphase and mitosis together, interphase is technically not part of mitosis. However, both processes are part of the larger cell cycle, where interphase consists of the G 1start subscript, 1, end subscript, S, and G 2start subscript, 2, end subscript stages of the cell cycle.
Does interphase occur before or after meiosis?
Interphase occurs before meiosis. Interphase is the part of the cell cycle where the cell is growing and does its job.
Does meiosis have interphase?
Meiosis Definition
The general steps of meiosis are: interphase (separated into G1, S, and G2 phases), prophase 1, metaphase 1, anaphase 1, telophase 1, prophase 2, metaphase 2, anaphase 2 and telophase 2.
What phases are meiosis and mitosis similar?
During cell replication, mitosis and meiosis follow the same phases: prophase, metaphase, anaphase, and telophase (although meiosis goes through each step twice, while mitosis only goes through each step once).
IT IS INTERESTING: You asked: Does centromere split in anaphase 2?
How does interphase relate to mitosis?
During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
What happen in interphase?
During interphase, the cell grows and DNA is replicated. … During interphase, the cell grows and the nuclear DNA is duplicated. Interphase is followed by the mitotic phase. During the mitotic phase, the duplicated chromosomes are segregated and distributed into daughter nuclei.
Does interphase occur before meiosis II?
Meiosis can only occur in eukaryotic organisms. It is preceded by interphase, specifically the G phase of interphase. … Meiosis II starts with two haploid parent cells and ends with four haploid daughter cells, maintaining the number of chromosomes in each cell.
What is the correct order of stages of mitosis?
At what stage does meiosis occur?
Answer : Meiosis occurs in an organism exhibiting haploidic cycle after the zygote formation stage. Thus the product formed will be haploid spores which grow into haploid individuals.
|
__label__pos
| 0.995456 |
Golem SDK
Uploading a Golem image
Pushing the image to a repository
Once your image is built and tested we can push it to a remote repository so that it becomes available to providers within the Golem network.
For the sake of simplicity, we're currently using a freely-accessible repository that everybody can push into without any special requirements. This repository is managed by Golem Factory.
This is likely to change in the future, making it decentralized and adding an appropriate block-listing mechanism.
Note that all code samples, libraries and tools use the Golem-managed image repo as default, it is not mandatory to use it - developers may publish their Golem images under any publicly accessible URL.
To push the image we use the same command that was used for conversion, adding the --push flag to it:
gvmkit-build golemfactory/blender:demo --push
You need to call the above command from a directory which contains your converted .gvmi image file.
In other words, it's currently not possible to convert and push an image with a single command - these need to be two separate steps.
Once the image is pushed, the tool will output its hash, e.g.:
success. hash link 1a72390cbb08117b2d77373185e43701a747a3f7eb9a552c19aa5041
Make sure to save that hash as you'll need it in the payload definition of your requestor agent.
That's it - your image is now published on Golem Factory's image repository.
Important: if you use a newly-pushed image in your task, you'll need to give providers some additional time to pull those images before they'll be able to publish offers that are compatible with your demand.
In other words, if you're running a task using a newly-pushed image, always specify a much longer task timeout on the first run.
Last modified 1mo ago
Copy link
|
__label__pos
| 0.86468 |
How far can weather balloons travel?
Can weather balloons reach space?
A helium-filled balloon can float very high up into the atmosphere, however, it cannot float up into outer space. The air in Earth’s atmosphere gets thinner the higher up you go. … This happens at about a height of 20 miles (32 kilometers) above Earth’s surface.
How long can a weather balloon stay in the air?
Beneath the helium balloon is a shoebox-sized weather instrument called a radiosonde, a small, disposable instrument package that sends back weather data such as atmospheric pressure, temperature, relative humidity and wind speed. A typical weather balloon can last over two hours as it rises into the sky.
Do you need permission to launch a weather balloon?
How long can a weather balloon stay in the sky?
The balloon flights last for around 2 hours, can drift as far as 125 miles away, and rise up to over 100,000 ft. (about 20 miles) in the atmosphere!
Can a balloon cause a plane crash?
The answer is yes if you’re referring to a party balloon. It will cause the aircraft to crash if it is sucked into an engine, it won’t stop the engine, and it won’t even hiccup.
THIS IS INTERESTING: Best answer: What ocean has the most tsunamis?
How far can a helium balloon travel?
Moving at just three miles-per-hour, a helium-filled Mylar® balloon can travel more than 1,000 miles before it returns to Earth. That means a balloon released in St. Louis could realistically reach the Atlantic Ocean before descending.
|
__label__pos
| 0.995865 |
Aliens May Be Hiding From Us Behind the Cosmic Gorilla Effect
Where are the aliens? Enrico Fermi called the fact that there are so many stars and yet no aliens visiting us a paradox. Perhaps the second half of the paradox is wrong … aliens exist and are living amongst us but we’re so distracted by watching what we know that we complete ignore them. That’s the premise behind the Cosmic Gorilla Effect, and a new study suggests that a simple video experiment with athletes and an ape may prove that we’re not alone … just oblivious.
“The cosmic gorilla effect or the problem of undetected non terrestrial intelligent signals” is the title of a new study published in the journal Acta Astronautica. The “gorilla effect” refers to a famous experiment conducted by Christopher Chabris and Daniel Simons – cognitive psychologists and authors of The Invisible Gorilla: How Our Intuitions Deceive Us. A video (seen here) shows six people – three in black shirts and three in white – passing basketballs to only those wearing the same colored shirts. The participant is instructed to count how many times the people in white shirts pass the ball. At the end, they’re asked for their total, given the correct answer, and then asked another very embarrassing question:
“But did you see the gorilla?”
Yes, a gorilla walked between the players and most people are so focused on counting that they miss it completely. The experiment is often used to describe situations like the unreliability of witnesses at crime scenes who are often focused on something else. In their new study, neuropsychologists Gabriel de la Torre and Manuel García from the University of Cádiz in Spain use a “cosmic” version of the gorilla effect to explain why we may not see the extraterrestrials walking through the scenery of our lives.
Garcia and de la Torre conducted their own experiment – asking volunteers to differentiate between aerial views of buildings and nature scenes while hiding a tiny gorilla in one of them. Intuitive people noticed the gorilla more often than those who saw themselves as logical or methodical. One way they explained this is by the concept of ‘reverse pareidolia. Pareidolia is the tendency to see something real or significant in a random array of shapes – the ‘face of Jesus on a tortilla’ or pyramids, buildings or animals in blurry photographs from the surface of Mars. In reverse pareidolia, we’re looking so hard for extraterrestrial beings we’re familiar with (greys, reptilians, robots, etc.) that we completely miss things that resemble nothing we’ve ever encountered. Instead of seeing things where there are none, we’re not seeing things where there are some.
The “cosmic gorilla effect” is entirely plausible, especially when you throw in the ideas of multiple dimensions and the existence of dark matter. However, is it true? Or are we in the “zoo hypothesis” with ETs who would be visible to us but intentionally hide themselves while they observe us?
Here’s another experiment for you. Somewhere hidden in this article is a great name for band. Did you see it?
You can follow Paul on and
|
__label__pos
| 0.836823 |
What can Sudoku teach us about ecology and evolution?
I’m sure most of us are familiar with the game of Sudoku, a game where 81 cells are arranged in a 9 by 9 grid and filled with the integers 1 through 9. If you page through a book of Sudoku puzzles – or, more precisely, skip to the back to look at the solutions to these puzzles – you’ll immediately notice that each of the grids are filled with different combinations and sequences of numbers. Each Sodoku puzzle has a unique solution; a distinct endpoint. The one-of-a-kind pattern unique to that Sodoku grid.
Now imagine an alien who, on landing on earth, discovers a book of Sudoku puzzles. It notices how large parts of the human population are captivated by cracking these cyphers. The alien, assuming that solving the Sudoku code will unlock some fundamental secret to the universe, sets out to understand the ‘true nature’ of the puzzle.
By examining the book, the alien notices that it is the mostly empty starting grids (with a few starting values already provided) and the completed solutions at the back of the book.
Since it is unfamiliar with the inner workings of Sudoku, it decides to unravel the underlying mechanism of Sudoku using purpose-built multivariate statistics. After applying these complex tools and tricks, our alien investigator discovers that every unique endpoint is strongly correlated to the distinct starting values. So strongly, in fact, that most of the variation in the endpoint patterns can be explained by the starting conditions.
The alien has figured it out! Its results show, without a shadow of a doubt (yes, P < 0.05!), that the end point of a solved Sudoku puzzle can mostly be attributed to its starting conditions.
In this analogy, each unique pattern for a solved Sodoku puzzle is akin to observable patterns in nature; whether it is the number of birds in a tropical forest, the relative abundance of insects along a hillside or even the global distribution of grasslands across the planet. The unique starting conditions of the Sudoku puzzle can be likened to historical processes, such as evolution, speciation, and historical colonisation.
There are, for instance, phylogenetic explanations for global bird species richness, evolutionary explanations for how insect’s thermal niches change with altitude and biogeographical explanations for how historical climate determined the extents of vegetation biomes cross the planet.
I’d be willing to wager that most sophisticated techniques will manage to find an evolutionary explanation for almost any contemporary pattern in nature if the researchers search hard enough. In this sense, it is exactly like the alien with its fictional Sodoku analysis: the end conditions (or the patterns in nature) are strongly correlated to the starting conditions (historical evolutionary events).
Theodosius Dobzhansky seems to be right: it is all about evolution! Nothing, whether it is in Sudoku or in nature, makes sense without first considering its origin story.
However, anyone who has ever struggled to complete a Soduku puzzle can tell you that the appeal of the game is not about realising that the end configuration is determined by the starting conditions. Unlike the statistically-proficient alien, Sudoku enthusiasts understand that it is the processes linking these starting conditions to the completed grid that make Sudoku one of the most popular puzzles on the planet!
A Sudoku grid is made up of nine quadrats of 9 by 9 cells. The rules state that each of these quadrats must contain all the numbers 1 through 9. Moreover, each row and each column on the full grid must also contain the numbers 1 through 9. It is these three simple rules that have captured the attention of that guy on the train during his daily commute, the old lady passing the time on a Sunday afternoon and even an ecologist trying to make a point on his poorly-maintained blog!
In Sudoku, the end configuration is undoubtable “caused” by the starting conditions, but it is the simple rules of arranging numbers that capture its essence.
Ecology is the same. Patterns in nature are undoubtedly determined by evolution. However, we shouldn’t just rest on our laurels because evolutionary processes explain most of the contemporary patterns in nature. Instead, this knowledge should inspire us to find the elegant ecological rules that could perhaps capture the “essence” of nature in the same way simple rules capture the “essence” of Sudoku.
I think it is the easy option to just attribute every pattern in nature to evolutionary processes. Of course, such attribution will generally provide exceptionally accurate descriptions of reality. However, I also worry that by stopping there, we are no different to Soduku-researching extraterrestrials. If we just concede that, “it’s all evolution”, we could perhaps miss the actual essence of nature; those handful of simple, elegant rules that could captivate us for hours on end.
Leave a Reply
WordPress.com Logo
Google photo
Twitter picture
Facebook photo
Connecting to %s
|
__label__pos
| 0.972865 |
What was the first major event in favor of women’s suffrage?
What event started the women’s suffrage movement?
Seneca Falls, New York convention of July 19-20, 1848 is generally considered the starting point for the modern women’s rights movements in the United States. Among the principal organizers of the event were Lucretia Mott of Philadelphia and Elizabeth Cady Stanton.
What influenced the women’s suffrage movement?
In the early 1800s many activists who believed in abolishing slavery decided to support women’s suffrage as well. In the 1800s and early 1900s many activists who favored temperance decided to support women’s suffrage, too. This helped boost the women’s suffrage movement in the United States. …
Which event sparked the discussion for woman suffrage on the national stage?
Which of the following is considered to be the first major event of the women’s movement quizlet?
The first major meeting on women’s rights in the United States was held in Seneca Fallls, New York, July 19th and 20th, 1848. It was called the Seneca Falls Convention.
THIS IS IMPORTANT: Which issue caused a split in the women's suffrage movement in the United States during?
Who was the first woman to vote?
Seraph Cedenia Young Ford (1846–1938), Brigham Young’s grandniece, was the first woman known to cast a ballot in the February 14, 1870, Salt Lake City municipal election, making her the first woman with equal suffrage rights to legally vote in the United States. Ballot Box, circa 1860s.
Who came first suffragettes or suffragists?
Suffragists believed in peaceful, constitutional campaign methods. In the early 20th century, after the suffragists failed to make significant progress, a new generation of activists emerged. These women became known as the suffragettes, and they were willing to take direct, militant action for the cause.
When was the 1st vote on women’s suffrage is defeated in the US Senate?
In February 1886 the Senate Select Committee on Woman Suffrage favorably reports the Susan B. Anthony Amendment to the full Senate. Nearly a year later, after much prodding by Henry Blair (R-NH), the Senate holds its first vote on the proposal, which suffers a lopsided defeat.
What was the first public event planned by the suffragists that went against these conventions?
October 23–24, 1850: First National Woman’s Rights Convention, planned by Lucy Stone, Lucretia Mott, and Abby Kelley, is held in Worcester, Massachusetts. It draws 1,000 people, and women’s movement leaders gain national attention.
|
__label__pos
| 0.999553 |
VOA Special English - Climate Change Talks End with Hope, Unresolved Issues
Climate Change Talks End with Hope, Unresolved Issues
12 December, 2014
Climate change talks ended Friday in Lima, Peru. The international negotiations included more than 10,000 particpants from about 200 countries.
Participants aimed to create a plan for reducing greenhouse gases around the world. They expected the plan to develop into a firm agreement at the next major climate change talks in Paris next year.
The participants – including the Secretary-General of the United Nations, Ban Ki-moon — agreed on the importance of limiting climate change.
Climate Change Talks End with Hope, Unresolved Issues
Peru's President Ollanta Humala delivers a speech during the U.N. climate change talks in Lima, Dec. 11, 2014.
"I carry a message of hope and urgency..."
But they could not always agree on how to reach their goal.
Representatives from developing nations repeated their belief that wealthy countries should take more responsibility for reducing their carbon pollution.
But U.S. Secretary of State John Kerry said Thursday that more than half of global warming gases come from developing nations. He said those nations must also make changes.
Scientists warn that greenhouse gases are causing the world's temperature to rise. Global warming, they say, will cause droughts, floods and rising oceans.
Human rights
Many participants said that climate change was a human rights issue. Mary Robinson is the former president of Ireland and the United Nations Special Envoy for Climate Change.
"We need strong language about human rights because all climate action -- adaptation, mitigation -- helps human rights. But if we don't get that strongly into the message, we won't understand it's about people."
Francesco Martone, who attended the talks, said Ms. Robinson has been a good spokesperson for human rights. Mr. Martone is a senior policy advisor for the Forest Peoples Programme. The group supports the hundreds of millions of people who depend on tropical forests in South America, Asia and Africa. Many of those forests are being severely reduced by development, including mining, logging and commercial farming.
Mr. Martone explained that the negative effects of climate change can damage the basic human rights to food, health and housing. He said that, at the same time, climate change policies must respect human rights.
"For instance, imagine the expansion of, let's say, oil fracking or large-scale mono culture plantation for bio fuels on indigenous people's lands. That would have an impact of their right to land. If that right is not properly recognized, and if indigenous people cannot have a say on the decision, that will then have an impact on their life."
But Mr. Martone said the talks in Peru did not produce any major gains in protecting human rights. The participants did say that a climate change plan would address human rights. However, Mr. Martone said the plan did not say how.
"Let's say that there is a cultural problem. Because the climate change negotiations are about carbon. So the key concern is that of ensuring that, you know, any action that will be undertaken will be quick and without any specific hurdles. That the money flows out very quickly and without key hurdles, like safeguards."
In the New York Times, reporter Eduardo Porter discussed the same issue. He wrote that many governments do not want to slow economic growth by adding or enforcing environmental or human rights restrictions.
I'm Kelly Jean Kelly.
Kelly Jean Kelly wrote this report. Jerilyn Watson was the editor.
Words in This Story
greenhouse – adj. related to the warming of the Earth's atmosphere caused by air pollution
carbonn. element that is found in petroleum and in all living plants and animals
mitigation n. the making of something less severe or harmful
indigenousadj. existing naturally in a particular region or environment
hurdlesn. things that make an achievement difficult
|
__label__pos
| 0.868885 |
Select Page
Clarity Duo
Home airport:
Birmingham, UK
Clarity are an exciting and entertaining guitar vocal duo from the Midlands, UK. Covering a wide range of songs from the 50s through to the present day, they are sure to get you tapping those feet!
Sarah and Lewis first met at college in 2012 and since then have played together in various different bands. During this time they have performed many gigs including prestigious venues such as the Birmingham Arena and Jools Hollands very own Jam House. Following their college years they both moved on to further hone their craft at university where they graduated with first class degrees in Popular Music. Using the experience and knowledge they gained, they formed Clarity and have since been traveling the world through the one thing they both love most – music.
Enquire about this musician
|
__label__pos
| 0.834272 |
81,600 Plays
Like it
4.8 - 761 votes
Add to favorites
Share with your friends
Adjust to window
Achievements & Highscores
Game paused
R.I.P Flash! Hexagonator is a Flash game which is not supported anymore. Please check our similar games!
🕹️ Which games are similar to Hexagonator?
1. Sewerage Rebellion
2. Light The Lamps
3. Fruits
4. Spaceman Max
5. Piggy Wiggy Seasons
❤️ Which are the latest Strategy Games similar to Hexagonator?
1. Raft World
2. Keeper of the Grove 3
3. Idle Zombie Shelter
4. Huggy Wuggy
5. Wordle
|
__label__pos
| 0.967443 |
6 Things to Ask Your Broker Before Buying Colorado Farmland
October 29, 2021
When you find Colorado farmland for sale, ask your real estate broker these six questions to save you from making a poor investment decision.
6 Things to Ask Your Broker Before Buying Colorado Farmland
Finding the perfect agricultural property for sale in Colorado is a daunting task, especially when it seems like properties are getting swooped off the market in a matter of days. Potential buyers must balance finding a property that aligns with their goals, budget, and ideal agricultural conditions.
When you find Colorado farmland for sale, talking to your real estate broker about whether or not it meets your needs can save you from investing in something you cannot fully enjoy. Use these six tips to ensure the land you purchase matches your plans.
1. Ask About the Land's Previous Use
A property's previous use can determine whether or not it's fit for farming. Western Colorado real estate is notorious for its many uses for farms, ranches, vineyards, orchards, timber forests, and more. If the land has sat unused for a long time, it might not have the proper nutrients to support crops. If it previously housed an industrial operation, the soil may still contain contaminants harmful to plants and animals.
2. Request a Soil Test
When it comes to property for sale in Colorado, it's commonplace to include a soil test as a contingency in your offer. Many County Extension Offices provide soil tests to determine whether a piece of land can sustain crops. Pay attention to the levels of phosphorus, potassium, calcium, magnesium, sulfur, aluminum, and lead. Different crops thrive with various levels of these nutrients.
3. Notice the Soil Drainage
As you tour the property, keep an eye out for pools of standing water. Standing water is an open invitation for crop diseases and troublesome insects.
4. Observe the Farmland's Topography
Agricultural land's topography has the most significant impact on soil drainage. Steep hills cause water to run off too quickly and wash away nutrients, while uneven ground invites water to pool.
5. Research Access to Resources
Western Colorado real estate tends to be in rural areas, so you want to ensure the land has access to natural and manufactured resources, like water, electricity, and natural gas.
Regarding water, you should also ask your broker about the water rights to the property. If the water rights are not included with the Colorado farmland for sale, you'll have to jump through a handful of complicated hoops to attain them.
6. Inquire About Existing Infrastructure
Like resources, infrastructure plays a vital role in your farm's success, addressing your storage, transportation, and irrigation needs. You need to ensure the roads, buildings, and irrigation systems can accommodate your equipment, animals, and crops. Whatever structures the property doesn't already have, you will need to build, which will impact your budget.
The Secret to Finding Farmland in Colorado
Finding agricultural land for sale in Colorado requires research to ensure the property meets your unique needs. Just because a property is listed as agricultural doesn't mean that your crops or animals will thrive on it.
If you are buying or selling land in Colorado, you need a qualified real estate broker to help you navigate the landscape and seize the best opportunities. To start exploring Western Colorado real estate, reach out to me at [email protected] or 970-986-2955
|
__label__pos
| 0.879163 |
Surface Tension
To determine the surface tension of a liquid by capillary rise method.
How do you define surface tension?
The property of surface tension is revealed, for example, by the ability of some objects to float on the surface of water, even though they are denser than water. Surface tension is also seen in the ability of some insects, such as water striders, and even reptiles like basilisk, to run on the water’s surface.
The Theory Behind Surface Tension
Surface tension has been well- explained by the molecular theory of matter. According to this theory, cohesive forces among liquid molecules are responsible for the phenomenon of surface tension. The molecules well inside the liquid are attracted equally in all directions by the other molecules. The molecules on the surface experience an inward pull.
So, a network is formed against the inward pull, in order to move a molecule to the liquid surface. It results in a greater potential energy on surface molecules. In order to attain minimum potential energy and hence stable equilibrium, the free surface of the liquid tends to have the minimum surface area and thereby it behaves like a stretched membrane.
Surface tension is measured as the force acting normally per unit length on an imaginary line drawn on the free liquid surface at rest. It is represented by the symbol T (or S). It's S.I. The unit is Nm-1 and dimensional formula is M1L0T-2.
Capillarity in Liquids
When a capillary tube is dipped in a liquid, the liquid level either rises or falls in the capillary tube. The phenomena of rise or fall of a liquid level in a capillary tube is called capillarity or capillary action.
How do we define the surface tension of a liquid through the capillary rise method?
When a liquid rises in a capillary tube, the weight of the column of the liquid of density ρ inside the tube is supported by the upward force of surface tension acting around the circumference of the points of contact.
Thus, surface tension;
Where, h - height of the liquid column above the liquid meniscus
ρ - Density of the liquid
r - Inner radius of the capillary tube
θ - Angle of contact
Learning Outcomes
• Students understand the theory of the surface tension of liquids.
• Students correlate the property of surface tension with different natural phenomena.
• Students understand the concept of capillarity in liquids.
• They are able to relate surface tension and capillarity.
Cite this Simulator:
|
__label__pos
| 0.999098 |
Cyclone vs. Typhoon vs. Tornado | reComparisonhttp://www.reComparison.com/rss/comments/?c=100160Comments from Cyclone vs. Typhoon vs. Tornado(c) 2022, reComparison.com. All rights reserved.ShaynaWell, a hurricane and typhone are really the same thing. However, a huricane generally occurs in the Atlantic Ocean and a typhoon generally occurs in the Pacific Ocean. Tornados are similar but occur on land and are not as large. "Cyclone"...http://recomparison.com/comparisons/100160/cyclone-vs-typhoon-vs-tornado/#comment295Sun, 30 May 2010 00:54:12 GMT
|
__label__pos
| 0.709688 |
Newton's First and Second Laws
In this unit we begin to consider the causes of motion. The motion is explained using Newton's First and Second Laws. When one begins to examine these laws they seem very simple but the consequences are very powerful and important. As I have mentioned in class, many times college physics courses include a separate course for each of these laws - statics (the net force is zero) and dynamics (the net force is not zero).
Newton's First Law - The Law of Inertia:
Inertia is a measure of resistance to the change in motion. We measure this quantity by measuring the mass. Mass units are either kilograms (metric system) or slugs (English system). Mass is not measured in pounds. Newton's first law states that an object will stay in its own motion unless acted on by an outside force. Or more simplified an object in motion will continue in that same motion in a straight line or an object at rest will continue at rest unless a net force is applied. If a net force is applied then Newton's 2nd law comes into effect.
Newton's Second Law - F=ma
Again at first glance this looks very simple but because there are so many forces acting around us all the time, it is easy to get this all mixed up. We often like to state Newton's Second Law as F=ma but the correct form (the form that Newton described) is a=F/m. This is a "correct" form because acceleration is caused by the force and the mass. In the typical form one might be convinced that force is caused by mass and acceleration which leads to many incorrect conclusions.
In this simple equation, force and acceleration are both vectors, meaning they both have a defined direction and they must be in the same direction. In addition, the force and acceleration must be from the same cause. Example, using the acceleration of gravity to determine the force of a car engine does not work. Mass in this equation is scalar, meaning that it is direction independent. You can push (force) something north, but it doesn't make sense to suggset that 15 Kg is north.
When the acceleration is being measured (as in a=(vf - vi )/t for example) the acceleration is caused by the net force. The net force is the sum of all the forces. Because forces can act in different directions at the same time it is often useful to separate the components before doing any calculations. Add to these components the fact that there is usually more than one force many students get "lost" in the calculations if each part is not carefully considered and included in the determination of the net force. One technique that helps keep track of all of these forces is called a Free Body Diagram (FBD) or a Force Diagram. We will get plenty of practice with these diagrams in class.
One very common mistake in considering forces is the confusion of mass and weight. Mass is a measure of inertia, the amount of matter in an object, the resistance to the change in motion. Weight is simply the force of gravity. Mass does not have direction, weight has a direction of down (usually we designate this as the negative y direction). Mass is measured in kilograms or slugs, weight in newtons or pounds. Because the acceleration of gravity near the surface of the earth is so constant (9.8 m/s2 or 32 ft/s2) it is easy to calculate the weight (F=ma) if the mass is known or to calculate the mass if the weight is known (m=F/a). Even thought it is "easy" to do, it is a concept that is difficult for most students to "get".
Unit III Dynamics
PDF Word
Look Out! No Breaks! Notes Free Body Diagrams N1L Quiz 1 N1L Quiz 1
N1L Quiz 2
N1L and N2L HW
N2L Quiz 1 N2L Quiz 1
FBD Quiz 1 FBD Quiz 1
N2L Quiz 2
N2L Quiz 3 N2L Quiz 3
Friction Homework
Circular Motion
CM Free Body Diagrams Circular Motion Quiz 1 Circular Motion Quiz 1
CM and Universal Gravitation Homework Circular Motion Quiz 2 Circular Motion Quiz 2
Circular Motion Quiz 3 Circular Motion Quiz 3
Car Race News Universal Gravitation Quiz Universal Gravitation Quiz
Free Body Diagrams
The Physics Classroom - Free Body Diagams and More!
Free Body Diagrams from WWU
From UNM
From Integrated Publishing
Interactive practice problems from U of Penn
Simple directions from Univ Utah
Find additional links yourself! Search for "free body diagrams", "uniform circular motion", "Newton's Second Law" or even force + rollercoaster.
|
__label__pos
| 0.999309 |
We gratefully acknowledge support from
the Simons Foundation and member institutions.
Full-text links:
Current browse context:
Change to browse by:
References & Citations
DBLP - CS Bibliography
(what is this?)
Computer Science > Information Retrieval
Title: Towards Explaining STEM Document Classification using Mathematical Entity Linking
Abstract: Document subject classification is essential for structuring (digital) libraries and allowing readers to search within a specific field. Currently, the classification is typically made by human domain experts. Semi-supervised Machine Learning algorithms can support them by exploiting the labeled data to predict subject classes for unclassified new documents. However, while humans partly do, machines mostly do not explain the reasons for their decisions. Recently, explainable AI research to address the problem of Machine Learning decisions being a black box has increasingly gained interest. Explainer models have already been applied to the classification of natural language texts, such as legal or medical documents. Documents from Science, Technology, Engineering, and Mathematics (STEM) disciplines are more difficult to analyze, since they contain both textual and mathematical formula content. In this paper, we present first advances towards STEM document classification explainability using classical and mathematical Entity Linking. We examine relationships between textual and mathematical subject classes and entities, mining a collection of documents from the arXiv preprint repository (NTCIR and zbMATH dataset). The results indicate that mathematical entities have the potential to provide high explainability as they are a crucial part of a STEM document.
Subjects: Information Retrieval (cs.IR)
Cite as: arXiv:2109.00954 [cs.IR]
(or arXiv:2109.00954v1 [cs.IR] for this version)
Submission history
From: Philipp Scharpf [view email]
[v1] Thu, 2 Sep 2021 13:54:49 GMT (749kb,D)
Link back to: arXiv, form interface, contact.
|
__label__pos
| 0.982734 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.