Category: Science

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For this assignment, you will read through the first power point on land description, and then visit a land source in the environment! Based on what you see, you will provide the information based on the grading description below.

Grading

In a word document, provide the following information to receive our participation credit (50 points total)

1.)Tell me what land source you visited (5 points)

2.)Tell me which type of land source based on the ones described is the one you visited. For those of you in class during this lecture, you don’t need to complete this part. Just mention in one sentence that you were in class (5 points)

3.)Describe what you are observing in and around the land source in 5-6 sentences. What is the color? Is there pollution around? Do you see wildlife? Is this what you expected to see? (15 points)

4.)Do some research online to see if you can find any additional interesting information on the specific land source you visited. If not specific, find some interesting pieces of information on the type of land you visited that expand beyond what was listed in the lecture. Summarize your findings in 5-6 sentences and include the sources of information you used for this. For those of you in class for lecture, you don’t need to complete this section. Just mention in one sentence that you were in class for this lecture (15 points)

5.)Take a picture of your land source and include that in your assignment! (10 points)

I need you to write about a land source in Maryland, US

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Of the nearly 600 species and subspecies of primates living today approximately half are in danger of extinction. The number of recognized serious threats to primate survival has increased over the last decade. they include climate change, habitat loss ( encroaching farmland, deforestation, logging industries). and bushmeat hunting. Also, primate diseases, particularly for those populations that are in danger of contracting diseases from exposure to humans through ecotourism is on the rise. How have your perceptions of these threats changed, and reflect on whether the situation is hopelessly grave (the cup half empty) or there are reasons for optimism (the cup is half full).

Please no plagiarizing, but this is just a discussion post so the more info the better!

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Before you begin the assignment make sure you view the video “Gene Disorders Hit Amish Hard” and make sure you read this week’s PDF “Evolution and its Mechanisms”

Genetic Drift Webquest

Introduction

The Amish in the US began as a small group of Swiss-Germans that immigrated to the US in the 1700’s. Over the course of a few centuries they grew from a small founding population of 200 to a current population of more than 250,000. The most interesting thing about the Amish is that it’s a religious group that has remained culturally isolated and by extension, genetically isolated from the rest of the country. This genetic isolation from other humans has lead to an unprecedented amount of genetic disorders among the Amish.

Physicians were initially exposed to the genetic problems plaguing the Amish in the 1960’s. When the Amish began to reach out to the medial community doctors discovered that there were an unusual number of rare genetic diseases. One of these visible and rare genetic disease was called Ellis-Van Creveld syndrome. What was surprising to medical geneticists was not the presence of the rare genetic disease but rather how many Amish had the disease in the first place. Basically, the Amish in Lancaster County, Pennsylvania had more cases of Ellis-Van Creveld syndrome than all other human in the world combined! What was even more surprising was the fact that there was not just one rare genetic disease but rather dozens of rare genetic disease (In this context, rare genetic disease means that there may be less than 150 humans in the planet having the disease). Even more unfortunate is the fact that there are hundreds of other genetic disease associated with the Amish.

The big question that the Amish wanted to know was, why do they seem to have an unusual share of genetic disease when compared to the non-Amish and how do they stop those genetic disease in the first place!

What you are doing

• Your task will be to investigate a rare genetic disorder found among the Amish and to use evolutionary theory to both, help you understand why genetic disease can become common among isolated populations and to see how evolutionary theory can assist in curbing prevalence of genetic disease.

Before you begin your task make sure you do the following things.

• Read lecture notes on evolution. Especially the ones pertaining to Genetic drift.
• Watch video on Amish genetic diseases.

What you need to do

Before you begin this assignment, I recommend that you clearly understand what evolution is (a change in allele frequency from one generation to the next). Make sure you use the information provided and give me informed ideas that are based on your understanding of the subject matter. For this assignment you will have to answer the following items:

1. Pick and a rare genetic disorder that is common among the Amish and tell me how common the disease is around the world vs among the Amish? Give me estimated percentage of afflicted individuals! (I don’t need to know details of the genetic disease just its name). The important idea is to understand why disease associated alleles are found in high frequencies in the first place!
2. Explain in evolutionary terms why the genetic disorder that you investigated is found in unusually high frequencies among the Amish in the first place. You will need to give me one evolutionary mechanism that can specifically explain the Amish issue. Make sure you name the evolutionary mechanism and give a quick explanation of how the evolutionary mechanism works.
3. Explain how the Amish might be able to curtail the incidence of your chosen genetic diseases using evolutionary knowledge. You will need to give me one evolutionary mechanism that would be able to fix the Amish dilemma. Make sure name the evolutionary mechanism and give a quick explanation of how the evolutionary mechanism would be able to work.
4. Lastly, remember to cite all your work!

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3 discussion posts, each 150 words

1- Microstates of the ideal gas

2- Multiplicity: Simulations

3- Sharpness of the multiplicity function

This thread is for the discussion of the derivation and meaning of the sharpness of the multiplicity function (of which the meaning is far more important!). How does he sharpness of the multiplicity function for 100 coin tosses differ from the sharpness of the multiplicity of an Avagadro’s number of coin tosses? What does that imply for the probability of the “all heads” macrostate? What does that imply for the second law of thermodynamics? How often should we expect to see the second law violated in macroscopic systems? What are thermodynamic fluctuations? Should we be able to measure them? What is the thermodynamic limit?

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Populations Affected by Disabilities

1-Differentiate between medical model and social construct definitions for disability

2-Compare and contrast short- and long-term, health-related, disabling conditions

3-Discuss key federal legislation applicable to people with disabilities

4-Identify selected health care and social issues that influence the ability of people with disabilities to live and thrive in the community

References:

READ – Textbook (pp. 403-428)

• activities of daily living (ADLs), p. 410
• Americans with Disabilities Act (ADA), p. 414
• children with disabilities (CWD), p. 418
• disability, p. 405
• functional activities, p. 410
• handicap, p. 405
• impairment, p. 405
• Individuals with Disabilities Education Act (IDEA), p. 413
• instrumental activities of daily living (IADLs), p. 410
• intellectual disability (ID), p. 409
• people with disabilities (PWD), p. 405
• Social Security Disability Insurance (SSDI), p. 415
• Supplemental Security Income (SSI), p. 415

Homeless Populations

1-define homelessness

2-Identify demographic characteristics of the homeless population and subpopulations

3-Which are the three factors that contribute to homelessness?

4-Which are the major health problems among various homeless aggregates?

References:

READ – Textbook (pp. 429-442)

• Annual Homeless Assessment Report (AHAR), p. 432
• Chronically homeless, p. 439
• Education for Homeless Children and Youth (ECHY), p. 433
• Military Sexual Trauma (MST), p. 438

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In your essay, make sure you address the following:

1. Describe the significance of the corn industry to the US and why fighting corn pests is important to the agriculture industry. Provide statistics and/or figures as appropriate.

2. Summarize the “evolutionary battle” between the Western corn rootworm and scientists trying to control it.

3. What are some Genetic modifications that scientists have made to the corn to fight the root worm? What are their limitations?

4. Describe the latest RNAi technology being used against the rootworm. Is it effective? Are there any concerns about this?

5. How is European farming different than American farming? Are there lessons to be learned from these differences? If you were a farmer with 10,000 acres of land in Iowa, how would you choose to farm it to be profitable and provide the world with abundant nutrition?

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Malformations in the lymphatic system, called lymphangiomas, are overgrowths of the one-way lymph channels. Rarely, in infants and children, these channels grow abnormally large and cause deformity or death if the overgrowth chokes off a child’s airway or interferes with other aspects of heart and lung function. The deformity tends to grow with the child, worsening over time and is difficult to treat.

Physicians at Lucile Packard Children’s Hospital at Stanford (Links to an external site.) discovered, essentially by accident, that a common drug – sildenafil, a.k.a. Viagra – appears to shrink the overgrown vessels. They gave sildenafil to a child with a severe lymphangioma to treat another condition, pulmonary hypertension, and noticed that the lymph malformation shrank significantly. Unfortunately, the child’s underlying condition was so severe that she later died; however, two subsequent patients have done well on the medication.

“There has been no medical treatment for lymphangiomas; now all of a sudden there may be one,” said Al Lane, MD, a co-author on the NEJM letter published January 2012 and an investigator on the lymphangioma research now being conducted. The mechanism by which the drug could resolve the malformations is not known, however there’s a possibility that sildenafil may help to open and drain the channels,” Lane said.

The drug (Viagra) has been used to treat pulmonary hypertension in children. Its typical side effects in children are nausea, headaches and cold-like symptoms such as a runny nose or fever, Lane said. Spontaneous erections are possible but are an infrequent side effect. Discuss your thoughts on studying and utilizing Viagra as treatment for lymphangioma and its side effects in children.

Source: Lane, A. (2012, January 26). Sildenfil for Severe Lymphatic Malformations. New England Journal of Medicine, 366. Retrieved from: http://www.nejm.org/doi/full/10.1056/NEJMc1112482 (Links to an external site.)

Responce needs to be at least 250 words. plese cite any websites used by using apa format

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Force is a push or pull on an object in simple terms. There are forces all around us. Some forces we can see and some we can only see act on other objects. For example, if I throw a ball, I apply a force to the ball with my hand. There are unseen forces such as magnetic and gravitational. If I let go of the ball, it will drop to the floor. I cannot see the gravitational force, but I can see the ball fall to the floor. The Earth pulls the ball to the floor. If you hang an object on a spring, there are two forces involved. The Earth pulls down on the object and the spring pulls up on the object. Robert Hooke found a relationship between the force on the spring and how far it stretches. We are going to study this relationship.

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In this portion of the lab students will focus on what resources will be needed for a trip to Mars. To simplify things we will only look at three specific things-food, water and oxygen. For food, specific foods will not be looked at, but only food in general: how much food (in mass) does an astronaut consume per day. Likewise we will focus on how much oxygen and water are needed on a daily basis. This research will be conducted on the internet, so remember to cite all your sources. If it did not come out of your head, you need to cite it. Also, do not, repeat, do not ever, use wikipedia as a citable source. You can go there and get ideas, but must find them somewhere else before you use them. Wikipedia is unreliable.

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please read the attachments before writing the report.

Read the instructions that we followed for lab experiment to know the tools we used and the chemicals.

Also read the attached slides which is also about separation of a mixture of solid, it will help.

Report sheet are attached which include all the data that we collected for this lab report.

Report Style:

1-Cover Page (50 points)

2-Introduction (50 points) (should include what is the lab about, how the report will cover the experiment. General information about the topic)

3- Typed data and observations (400 points) (should include all the data attached as report sheet with further information like what you think of the reaction and how we got these numbers. Also, pictures while doing the experiment will be attached)

4- What’s Up (200 points) (how can we involve this experiment in our daily life in engineering) ( a real life example in engineering)

5-Conclusion (100 points) (explanation of the experiment and what you learn from this experiment and what you think) (explosions of how you thing the data are, and explain what error occurred in the experiment)

(More pictures will be attached for during the experiment)

(Example of the complete work will be attached

(There will be a plagiarism check)