MSE201 Midterm Exam 10/17/2014 Each element 2 points. Put ALL calculations and answers in your Blue Book! 1. Materials are characterized by: a. Macroscopic properties b. Microstructure c. Atomic level composition d. All of the above 2. Atoms are: a. Discrete units of matter b. An abstract concept c. Found in fractional units d. Crystallographic lattice points 3. The Burger’s vector describes: a. Surface cracks b. Crystal twinning c. Dislocation geometry d. The most direct route to McDonald’s 4. Cubic Close Packed (CCP) is another name for which of the following: a. HCP b. BCC c. FCC d. All of the above 5. Glass and ceramic materials tend to: a. Fail catastrophically at low strain b. Show ductility c. Deform plastically before failure d. Have elastic moduli ~106 Pa 6. Solid state diffusion & vacancy generation: a. Are completely unrelated b. Are directly related c. Increase linearly with Temperature d. Describe lattice point motion 7. Diffusion & heat transfer: a. Are completely unrelated b. Are directly related c. Increase linearly with Temperature d. Have identical differential equations 8. A vacancy and a dislocation both: a. Disrupt the crystal lattice b. Represent partial occupancy c. Contain ruptured bonds d. Are low energy regions 9. Dislocations: a. Are interstitial dopants b. Are crystal defects c. Require atomic impurities d. Enhance plastic deformation 10. Ionic, covalent and metallic bonding are primary bonding types. a. Primary bonds require exchange or sharing of what between atoms? b. How does electronegativity drive the reaction of sodium metal and chlorine gas to form sodium chloride? c. Carbon-carbon bonds are what type? d. The directional nature of covalent bonds is related to what structural feature of atoms? 11. The (111) plane of the FCC structure is close-packed. a. Sketch this plane within a unit cell. b. How many atoms are on the plane you drew inside the unit cell? c. Estimate the area of the plane d. Calculate the area atomic density e. If there is one vacancy per 1012 lattice points at 273K, what is the partial atomic occupancy of each lattice point? f. If you are asked calculate the number of vacancies present at 600K, what additional information do you need? 12. Dislocation motion occurs largely along close-packed directions and planes. First, compare the FCC & BCC structures: a. Describe any close packed planes b. Describe any close packed directions c. If the ductile-to-brittle transition at low temperatures is related to the number of close-packed directions and planes, do you expect BCC or FCC metals to have greater ductility? d. Magnesium and other HCP metals are brittle. Does your analysis from 12.c. support this observation? 13. A tensile test is performed on a ductile sample. The first 1% of strain is elastic with a modulus of 100E9 Pa, at which point plastic deformation begins. The tensile strength of 1.1E9 Pa is determined at 9% strain, while failure occurs at a stress of 9E8 Pa and strain of 18%. a. Sketch the complete stress-strain cycle b. Estimate the toughness in units of J/m3.

MSE201 Midterm Exam 10/17/2014 Each element 2 points. Put ALL calculations and answers in your Blue Book! 1. Materials are characterized by: a. Macroscopic properties b. Microstructure c. Atomic level composition d. All of the above 2. Atoms are: a. Discrete units of matter b. An abstract concept c. Found in fractional units d. Crystallographic lattice points 3. The Burger’s vector describes: a. Surface cracks b. Crystal twinning c. Dislocation geometry d. The most direct route to McDonald’s 4. Cubic Close Packed (CCP) is another name for which of the following: a. HCP b. BCC c. FCC d. All of the above 5. Glass and ceramic materials tend to: a. Fail catastrophically at low strain b. Show ductility c. Deform plastically before failure d. Have elastic moduli ~106 Pa 6. Solid state diffusion & vacancy generation: a. Are completely unrelated b. Are directly related c. Increase linearly with Temperature d. Describe lattice point motion 7. Diffusion & heat transfer: a. Are completely unrelated b. Are directly related c. Increase linearly with Temperature d. Have identical differential equations 8. A vacancy and a dislocation both: a. Disrupt the crystal lattice b. Represent partial occupancy c. Contain ruptured bonds d. Are low energy regions 9. Dislocations: a. Are interstitial dopants b. Are crystal defects c. Require atomic impurities d. Enhance plastic deformation 10. Ionic, covalent and metallic bonding are primary bonding types. a. Primary bonds require exchange or sharing of what between atoms? b. How does electronegativity drive the reaction of sodium metal and chlorine gas to form sodium chloride? c. Carbon-carbon bonds are what type? d. The directional nature of covalent bonds is related to what structural feature of atoms? 11. The (111) plane of the FCC structure is close-packed. a. Sketch this plane within a unit cell. b. How many atoms are on the plane you drew inside the unit cell? c. Estimate the area of the plane d. Calculate the area atomic density e. If there is one vacancy per 1012 lattice points at 273K, what is the partial atomic occupancy of each lattice point? f. If you are asked calculate the number of vacancies present at 600K, what additional information do you need? 12. Dislocation motion occurs largely along close-packed directions and planes. First, compare the FCC & BCC structures: a. Describe any close packed planes b. Describe any close packed directions c. If the ductile-to-brittle transition at low temperatures is related to the number of close-packed directions and planes, do you expect BCC or FCC metals to have greater ductility? d. Magnesium and other HCP metals are brittle. Does your analysis from 12.c. support this observation? 13. A tensile test is performed on a ductile sample. The first 1% of strain is elastic with a modulus of 100E9 Pa, at which point plastic deformation begins. The tensile strength of 1.1E9 Pa is determined at 9% strain, while failure occurs at a stress of 9E8 Pa and strain of 18%. a. Sketch the complete stress-strain cycle b. Estimate the toughness in units of J/m3.

info@checkyourstudy.com MSE201 Midterm Exam 10/17/2014 Each element 2 points. Put … Read More...
English 1 Professor Nielsen Essay One Topic and Guidelines The Context You are a non-profit organization Director of Fundraising, and your goal is to convince a wealthy individual to make a substantial donation to your cause. Choose from one of the following projects derived from the social issues from the course readings below: 1. The Prison Project: Reducing the incarceration rate and numbers in the U.S. 2. Birth Control Advocacy and Access: Supporting a birth control education and free product distribution in the U.S and/or internationally. 3. LGBT Advocacy: Funding education, campaigning, and lobbying for LGBT rights in the U.S. 4. Equality in Education: Supporting funding and scholarships for schools and individuals from less advantaged populations. 5. Migrant Welfare and Protection: Creating safe housing, food, and education for refugees. 6. Something else related to social justice?????? (See me if you have your own project idea). (animal welfare, women’s advocacy, housing, student loans and tuition affordability, etc.) Make a case for a donation of $2 million dollars to your cause by writing a funding request letter to the potential donor. This request is essentially a persuasive essay designed to convince your reader to support your cause. Below is a suggested format for organizing your letter, as well as guidelines for your work. I. The Basics Due: Tuesday, September 29, at Start of Class (Rough Draft). And Tuesday, October 6, at Start of Class (Final Draft) Length: 3-4 Pgs., double spaced in the correct format (see sample paper format template at the end of this document for format.) Font: Times New Roman, 12PT. Margins: 1 inch all around. See sample format at the end of this document for further formatting information. You are required to submit using this format. Check the sample on page five of this document carefully. Editing: Be sure to use the proofreading guide. In particular, avoid the big five errors. Revising: Read over your draft carefully several times. We will work toward revision together in class, but you will also need to revise on your own. Visit the Learning center if you need extra support. II. Organization and Content (Sample Outline Follows.) Use an organized format for your essay. The best way to ensure strong organization is to map out a plan for the content of your essay, using an outline, clustering, or other graphic representation of your key ideas. One potential format follows. Sample Method of Organizing Your Funding Letter: A. The Opening Paragraph 1. Start with some brief striking details to provide the initial background to your letter: facts, figures, brief description of one aspect of the problem- something compelling. 2. End your paragraph with a statement that briefly announces/introduces your organization without yet going into detail about your mission. State that you are requesting a donation and that your letter will describe the need for this donation. (Your Thesis) B. Body of the Letter: The Problem Make a stronger case for the problem your organization seeks to address by describing several aspects of it, using examples and details, as well as quotes from relevant class readings (be sure to cite these correctly). C. Body of the Letter: What Your Organization Will Do Describe some points of actions your group will take and ways that you will spend donor funds to address aspects of the problem you have already described. Choose three to five specific courses of action. Do not make these two extensive. They should be manageable and practical. D. Your Summary and Conclusion: Asking for Money 1. Briefly restate the problem and your organization’s goals using new wording when possible. 2. Connect the funds you need to your organization’s goals 3. Make your request for money. 4. End with a final compelling statement of why the donor should give. III. Strategies and Guidelines 1. Use the writing process steps to help you through your letter. 2. Use the proofreading guide to help you edit and the Learning Center on campus for support. 5. Cite all quotes with the author and page number. Create a works cited page at the end of your essay for the works you discuss. (See the MLA guide and sample student essays in your textbook for examples and step-by-step help with MLA. You may also pick up a guide at the campus writing center and ask them for extra help.) 6. This is NOT a research essay. Most background information should come from common knowledge, your own prior knowledge and experience, and the readings from class/the text. However, you may choose to include up one additional research source if necessary, provided this is a reliable source that you can cite correctly. Please visit OWL at Purdue University for a complete MLA citation guide. You text also has a chapter on MLA citation. 7. Follow the correct essay format for font, spacing, margins, heading, etc. (SEE sample in this document.) IV. Formatting: You are required to format your essay in the way that follows to receive full credit. • Page number in upper right-hand corner (Use “Insert” and “Pg. #”) • Times New Roman 12 Pt. font • Heading in left corner with title, student name, essay 1 (or 2, etc.), Eng 2, and date • Heading is single spaced • Skip two lines to start typing body of text • Body of text is double spaced • Margins remain at 1 inch all around. • DO NOT skip lines between paragraphs • Indent each paragraph five lines • Use MLA format for citation Continue to the next page for format sample. Title of Your Campaign Project (Choose something compelling.) Student Name Essay 1 English 1 Date Dear _______, Start typing your essay here, two lines down from heading. The body of your essay is double spaced, but the heading is only single spaced. Note the page number in the upper right-hand corner. Note the exact content of the heading. There is no title page for short essays, nor is there a title across the top. For short essays of just a few pages, this format is standard. The title goes at the top of the heading. All words in the title are capitalized except pronouns, prepositions, and articles. Do not make your margins greater that one inch. Make sure you use Times New Roman 12 Point font. Do not include graphics or images of any kind in most essays for this class (see me if you think you have an exception). When you reach the end of your paragraph, just hit return and continue typing. Do not skip lines between your paragraphs or over-indent your paragraphs; indent only five lines as marked in the ruler. Do not attempt to write less for your essay by enlarging the font, margins, or spacing. This paragraph demonstrates a good length for an introduction. You next paragraph should start here. This is the way your essay should look. You may use this template to help you format your essay by saving it to your desktop and keeping the settings. You will, of course, have two to three pages when you finish, but this is what the first page would look like roughly. If you include a quote, be sure to cite the author and page number and to include a works cited page at the end of your essay.

English 1 Professor Nielsen Essay One Topic and Guidelines The Context You are a non-profit organization Director of Fundraising, and your goal is to convince a wealthy individual to make a substantial donation to your cause. Choose from one of the following projects derived from the social issues from the course readings below: 1. The Prison Project: Reducing the incarceration rate and numbers in the U.S. 2. Birth Control Advocacy and Access: Supporting a birth control education and free product distribution in the U.S and/or internationally. 3. LGBT Advocacy: Funding education, campaigning, and lobbying for LGBT rights in the U.S. 4. Equality in Education: Supporting funding and scholarships for schools and individuals from less advantaged populations. 5. Migrant Welfare and Protection: Creating safe housing, food, and education for refugees. 6. Something else related to social justice?????? (See me if you have your own project idea). (animal welfare, women’s advocacy, housing, student loans and tuition affordability, etc.) Make a case for a donation of $2 million dollars to your cause by writing a funding request letter to the potential donor. This request is essentially a persuasive essay designed to convince your reader to support your cause. Below is a suggested format for organizing your letter, as well as guidelines for your work. I. The Basics Due: Tuesday, September 29, at Start of Class (Rough Draft). And Tuesday, October 6, at Start of Class (Final Draft) Length: 3-4 Pgs., double spaced in the correct format (see sample paper format template at the end of this document for format.) Font: Times New Roman, 12PT. Margins: 1 inch all around. See sample format at the end of this document for further formatting information. You are required to submit using this format. Check the sample on page five of this document carefully. Editing: Be sure to use the proofreading guide. In particular, avoid the big five errors. Revising: Read over your draft carefully several times. We will work toward revision together in class, but you will also need to revise on your own. Visit the Learning center if you need extra support. II. Organization and Content (Sample Outline Follows.) Use an organized format for your essay. The best way to ensure strong organization is to map out a plan for the content of your essay, using an outline, clustering, or other graphic representation of your key ideas. One potential format follows. Sample Method of Organizing Your Funding Letter: A. The Opening Paragraph 1. Start with some brief striking details to provide the initial background to your letter: facts, figures, brief description of one aspect of the problem- something compelling. 2. End your paragraph with a statement that briefly announces/introduces your organization without yet going into detail about your mission. State that you are requesting a donation and that your letter will describe the need for this donation. (Your Thesis) B. Body of the Letter: The Problem Make a stronger case for the problem your organization seeks to address by describing several aspects of it, using examples and details, as well as quotes from relevant class readings (be sure to cite these correctly). C. Body of the Letter: What Your Organization Will Do Describe some points of actions your group will take and ways that you will spend donor funds to address aspects of the problem you have already described. Choose three to five specific courses of action. Do not make these two extensive. They should be manageable and practical. D. Your Summary and Conclusion: Asking for Money 1. Briefly restate the problem and your organization’s goals using new wording when possible. 2. Connect the funds you need to your organization’s goals 3. Make your request for money. 4. End with a final compelling statement of why the donor should give. III. Strategies and Guidelines 1. Use the writing process steps to help you through your letter. 2. Use the proofreading guide to help you edit and the Learning Center on campus for support. 5. Cite all quotes with the author and page number. Create a works cited page at the end of your essay for the works you discuss. (See the MLA guide and sample student essays in your textbook for examples and step-by-step help with MLA. You may also pick up a guide at the campus writing center and ask them for extra help.) 6. This is NOT a research essay. Most background information should come from common knowledge, your own prior knowledge and experience, and the readings from class/the text. However, you may choose to include up one additional research source if necessary, provided this is a reliable source that you can cite correctly. Please visit OWL at Purdue University for a complete MLA citation guide. You text also has a chapter on MLA citation. 7. Follow the correct essay format for font, spacing, margins, heading, etc. (SEE sample in this document.) IV. Formatting: You are required to format your essay in the way that follows to receive full credit. • Page number in upper right-hand corner (Use “Insert” and “Pg. #”) • Times New Roman 12 Pt. font • Heading in left corner with title, student name, essay 1 (or 2, etc.), Eng 2, and date • Heading is single spaced • Skip two lines to start typing body of text • Body of text is double spaced • Margins remain at 1 inch all around. • DO NOT skip lines between paragraphs • Indent each paragraph five lines • Use MLA format for citation Continue to the next page for format sample. Title of Your Campaign Project (Choose something compelling.) Student Name Essay 1 English 1 Date Dear _______, Start typing your essay here, two lines down from heading. The body of your essay is double spaced, but the heading is only single spaced. Note the page number in the upper right-hand corner. Note the exact content of the heading. There is no title page for short essays, nor is there a title across the top. For short essays of just a few pages, this format is standard. The title goes at the top of the heading. All words in the title are capitalized except pronouns, prepositions, and articles. Do not make your margins greater that one inch. Make sure you use Times New Roman 12 Point font. Do not include graphics or images of any kind in most essays for this class (see me if you think you have an exception). When you reach the end of your paragraph, just hit return and continue typing. Do not skip lines between your paragraphs or over-indent your paragraphs; indent only five lines as marked in the ruler. Do not attempt to write less for your essay by enlarging the font, margins, or spacing. This paragraph demonstrates a good length for an introduction. You next paragraph should start here. This is the way your essay should look. You may use this template to help you format your essay by saving it to your desktop and keeping the settings. You will, of course, have two to three pages when you finish, but this is what the first page would look like roughly. If you include a quote, be sure to cite the author and page number and to include a works cited page at the end of your essay.

http://www.youtube.com/watch?v=UnKEFSVAiNQ Watch the video, and then answer the questions below. According to realism, which of the following represents something that states would NOT seek? A. security B. prestige C. autonomy D. wealth E. permanent cooperation Schweller suggests that realists are wary of interdependence. If that is true, which of the following might be the most acceptable to a realist? A. creating a permanent pact of nonviolence with all English-speaking countries B. establishing an alliance to defend the U.S. against an invading country C. turning North America into something similar to the European Union, with a unified currency D. permitting the United Nations to run a global military so that the U.S. can reduce its military spending E. entering into a global production agreement in which the U.S. only manufactures computers Based on the video, which of the following statements about realists would seem to be false? A. Realists see the world as perpetually violent and full of war. B. Realists see humans as basically self-interested. C. Realists believe that the absence of a threat means a country should retrench. D. Realists believe that intervening in other countries to spread democracy is dangerous. E. Realists believe that autonomy is better than interdependence. What does Schweller mean by his statement that “there is no 911”? A. There is no global authority that is guaranteed to help any state in trouble. B. The world needs a central government to provide a universal social safety net. C. States need to cooperate more with each other in order to provide greater security for all. D. The United Nations is terrible at dealing with international emergencies. E. Islamic terrorists were not responsible for the attacks of September 11, 2001. Which of the following would be the best way to convince a realist to go to war? A. argue that we signed a treaty to protect that country B. argue that the country we are helping to defend was an ally in a prior war C. argue that it will provide the world with a chance at long-term peace and stability D. argue that the other country is a direct threat to our interests E. argue that if we do not intervene, the United Nations will

http://www.youtube.com/watch?v=UnKEFSVAiNQ Watch the video, and then answer the questions below. According to realism, which of the following represents something that states would NOT seek? A. security B. prestige C. autonomy D. wealth E. permanent cooperation Schweller suggests that realists are wary of interdependence. If that is true, which of the following might be the most acceptable to a realist? A. creating a permanent pact of nonviolence with all English-speaking countries B. establishing an alliance to defend the U.S. against an invading country C. turning North America into something similar to the European Union, with a unified currency D. permitting the United Nations to run a global military so that the U.S. can reduce its military spending E. entering into a global production agreement in which the U.S. only manufactures computers Based on the video, which of the following statements about realists would seem to be false? A. Realists see the world as perpetually violent and full of war. B. Realists see humans as basically self-interested. C. Realists believe that the absence of a threat means a country should retrench. D. Realists believe that intervening in other countries to spread democracy is dangerous. E. Realists believe that autonomy is better than interdependence. What does Schweller mean by his statement that “there is no 911”? A. There is no global authority that is guaranteed to help any state in trouble. B. The world needs a central government to provide a universal social safety net. C. States need to cooperate more with each other in order to provide greater security for all. D. The United Nations is terrible at dealing with international emergencies. E. Islamic terrorists were not responsible for the attacks of September 11, 2001. Which of the following would be the best way to convince a realist to go to war? A. argue that we signed a treaty to protect that country B. argue that the country we are helping to defend was an ally in a prior war C. argue that it will provide the world with a chance at long-term peace and stability D. argue that the other country is a direct threat to our interests E. argue that if we do not intervene, the United Nations will

http://www.youtube.com/watch?v=UnKEFSVAiNQ   Watch the video, and then answer the questions … Read More...
Prime Minister Thatcher characterizes the Falkland Islands invasion as: A. Actions taken by the Argentines that reflect a long history of animosity between the Independent country of the Falklands. B. An attempt at an ethnic cleansing of the British Falklands. C. An entirely legal yet unprovoked war on the European Union. D. An act of terrorist aggression against an independent state. E. An unlawful act of unprovoked aggression against a British territory.

Prime Minister Thatcher characterizes the Falkland Islands invasion as: A. Actions taken by the Argentines that reflect a long history of animosity between the Independent country of the Falklands. B. An attempt at an ethnic cleansing of the British Falklands. C. An entirely legal yet unprovoked war on the European Union. D. An act of terrorist aggression against an independent state. E. An unlawful act of unprovoked aggression against a British territory.

Prime Minister Thatcher characterizes the Falkland Islands invasion as:   … Read More...
“No Bats in the Belfry” by Dechaine and Johnson Page 1 by Jennifer M. Dechaine1,2 and James E. Johnson1 1Department of Biological Sciences 2Department of Science Education Central Washington University, Ellensburg, WA NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Part I – The Basic Question Introduction Imagine going out for a brisk winter snowshoe and suddenly stumbling upon hundreds of bat carcasses littering the forest floor. Unfortunately, this unsettling sight has become all too common in the United States (Figure 1). White-nose syndrome (WNS), first discovered in 2006, has now spread to 20 states and has led to the deaths of over 5.5 million bats (as of January 2012). WNS is a disease caused by the fungus, Pseudogymnoascus destructans. Bats infected with WNS develop white fuzz on their noses (Figure 2, next page) and often exhibit unnatural behavior, such as flying outside during the winter when they should be hibernating. WNS affects at least six different bat species in the United States and quickly decimates bat populations (colony mortality is commonly greater than 90%). Scientists have predicted that if deaths continue at the current rate, several bat species will become locally extinct within 20 years. Bats provide natural pest control by eating harmful insects, such as crop pests and disease carrying insect species, and losing bat populations would have devastating consequences for the U.S. economy. Researchers have sprung into action to study how bats become infected with and transmit P. destructans, but a key component of this research is determining where the fungus came from in the first place. Some have suggested that it is an invasive species from a different country while others think it is a North American fungal species that has recently become better able to cause disease. In this case study, we examine the origin of P. destructans causing WNS in North America. Some Other Important Observations • WNS was first documented at four cave sites in New York State in 2006. • The fungus can be spread among bats by direct contact or spores can be transferred between caves by humans (on clothing) or other animals. • European strains of the fungus occur in low levels across Europe but have led to few bat deaths there. • Bats with WNS frequently awake during hibernation, causing them to use important fat reserves, leading to death. No Bats in the Belfry: The Origin of White- Nose Syndrome in Little Brown Bats Figure 1. Many bats dead in winter from white-nose syndrome. NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 2 Questions 1. What is the basic question of this study and why is it interesting? 2. What specific testable hypotheses can you develop to explain the observations and answer the basic question of this study? Write at least two alternative hypotheses. 3. What predictions about the effects of European strains of P. destructans on North American bats can you make if your hypotheses are correct? Write at least one prediction for each of your hypotheses. Figure 2. White fuzz on the muzzle of a little brown bat indicating infection by the disease. NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 3 Part II – The Hypothesis As discussed in Part I, researchers had preliminary data suggesting that the pathogen causing WNS is an invasive fungal species (P. destructans) brought to North America from Europe. They had also observed that P. destructans occurs on European bats but rarely causes their death. Preliminary research also suggested that one reason that bats have been dying from WNS is that the disorder arouses them from hibernation, causing the bats to waste fat reserves flying during the winter when food is not readily available. These observations led researchers to speculate that European P. destructans will affect North American bat hibernation at least as severely as does North American P. destructans (Warnecke et al. 2012). Questions 1. Explicitly state the researchers’ null (H0 ) and alternative hypotheses (HA) for this study. 2. Describe an experiment you could use to differentiate between these hypotheses (H0 and HA). NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 4 Part III – Experiments and Observations In 2010, Lisa Warnecke and colleagues (2012) isolated P. destructans fungal spores from Europe and North America. They collected 54 male little brown bats (Myotis lucifugus) from the wild and divided these bats equally into three treatment groups. • Group 1 was inoculated with the North American P. destructans spores (NAGd treatment). • Group 2 was inoculated with the European P. destructans spores (EUGd treatment). • Group 3 was inoculated using the inoculation serum with no spores (Control treatment). All three groups were put into separate dark chambers that simulated the environmental conditions of a cave. All bats began hibernating within the first week of the study. The researchers used infrared cameras to examine the bats’ hibernation over four consecutive intervals of 26 days each. They then used the cameras to determine the total number of times a bat was aroused from hibernation during each interval. Questions 1. Use the graph below to predict what the results will look like if the null hypothesis is supported. The total arousal counts in the control treatment at each interval is graphed for you (open bars). Justifiy your predictions. 2. Use the graph below to predict what the results will look like if the null hypothesis is rejected. The total arousal counts in the control treatment at each interval is graphed for you (open bars). Justify your predictions. Null Supported Total Arousal counts Interval Null Rejected Total Arousal counts Interval NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 5 2 Credits: Title block photo by David A. Riggs (http://www.flickr.com/photos/driggs/6933593833/sizes/l/), cropped, used in accordance with CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0/). Figure 1 photo by Kevin Wenner/Pennsylvania Game Commision (http://www. portal.state.pa.us/portal/server.pt/document/901415/white-nose_kills_hundreds_of_bats_in_lackawanna_county_pdf ). Figure 2 photo courtesy of Ryan von Linden/New York Department of Environmental Conservation, http://www.flickr.com/photos/usfwshq/5765048289/sizes/l/in/ set-72157626818845664/, used in accordance with CC BY 2.0 (http://creativecommons.org/licenses/by/2.0/deed.en). Case copyright held by the National Center for Case Study Teaching in Science, University at Buffalo, State University of New York. Originally published February 6, 2014. Please see our usage guidelines, which outline our policy concerning permissible reproduction of this work. Part IV – Results Figure 3 (below) shows the real data from the study. There is no data for interval 4 bats that were exposed to the European P. destructans (gray bar) because all of the bats in that group died. Questions 1. How do your predictions compare with the experimental results? Be specific. 2. Do the results support or reject the null hypothesis? 3. If the European P. destructans is causing WNS in North America, how come European bats aren’t dying from the same disease? References U.S. Fish and Wildlife Service. 2012. White-Nose Syndrome. Available at: http://whitenosesyndrome.org/. Last accessed December 20, 2013. Warnecke, L., et al. 2012. Inoculation of bats with European Geomyces destructans supports the novel pathogen hypothesis for the origin of white-nose syndrome. PNAS Online Early Edition: http://www.pnas.org/cgi/ doi/10.1073/pnas.1200374109. Last accessed December 20, 2013. Figure 3. Changes in hibernation patterns in M. lucifugus following inoculation with North American P. destructans (NAGd), European P. destructans (EUGd), or the control serum. Interval Total Arousal counts

“No Bats in the Belfry” by Dechaine and Johnson Page 1 by Jennifer M. Dechaine1,2 and James E. Johnson1 1Department of Biological Sciences 2Department of Science Education Central Washington University, Ellensburg, WA NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Part I – The Basic Question Introduction Imagine going out for a brisk winter snowshoe and suddenly stumbling upon hundreds of bat carcasses littering the forest floor. Unfortunately, this unsettling sight has become all too common in the United States (Figure 1). White-nose syndrome (WNS), first discovered in 2006, has now spread to 20 states and has led to the deaths of over 5.5 million bats (as of January 2012). WNS is a disease caused by the fungus, Pseudogymnoascus destructans. Bats infected with WNS develop white fuzz on their noses (Figure 2, next page) and often exhibit unnatural behavior, such as flying outside during the winter when they should be hibernating. WNS affects at least six different bat species in the United States and quickly decimates bat populations (colony mortality is commonly greater than 90%). Scientists have predicted that if deaths continue at the current rate, several bat species will become locally extinct within 20 years. Bats provide natural pest control by eating harmful insects, such as crop pests and disease carrying insect species, and losing bat populations would have devastating consequences for the U.S. economy. Researchers have sprung into action to study how bats become infected with and transmit P. destructans, but a key component of this research is determining where the fungus came from in the first place. Some have suggested that it is an invasive species from a different country while others think it is a North American fungal species that has recently become better able to cause disease. In this case study, we examine the origin of P. destructans causing WNS in North America. Some Other Important Observations • WNS was first documented at four cave sites in New York State in 2006. • The fungus can be spread among bats by direct contact or spores can be transferred between caves by humans (on clothing) or other animals. • European strains of the fungus occur in low levels across Europe but have led to few bat deaths there. • Bats with WNS frequently awake during hibernation, causing them to use important fat reserves, leading to death. No Bats in the Belfry: The Origin of White- Nose Syndrome in Little Brown Bats Figure 1. Many bats dead in winter from white-nose syndrome. NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 2 Questions 1. What is the basic question of this study and why is it interesting? 2. What specific testable hypotheses can you develop to explain the observations and answer the basic question of this study? Write at least two alternative hypotheses. 3. What predictions about the effects of European strains of P. destructans on North American bats can you make if your hypotheses are correct? Write at least one prediction for each of your hypotheses. Figure 2. White fuzz on the muzzle of a little brown bat indicating infection by the disease. NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 3 Part II – The Hypothesis As discussed in Part I, researchers had preliminary data suggesting that the pathogen causing WNS is an invasive fungal species (P. destructans) brought to North America from Europe. They had also observed that P. destructans occurs on European bats but rarely causes their death. Preliminary research also suggested that one reason that bats have been dying from WNS is that the disorder arouses them from hibernation, causing the bats to waste fat reserves flying during the winter when food is not readily available. These observations led researchers to speculate that European P. destructans will affect North American bat hibernation at least as severely as does North American P. destructans (Warnecke et al. 2012). Questions 1. Explicitly state the researchers’ null (H0 ) and alternative hypotheses (HA) for this study. 2. Describe an experiment you could use to differentiate between these hypotheses (H0 and HA). NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 4 Part III – Experiments and Observations In 2010, Lisa Warnecke and colleagues (2012) isolated P. destructans fungal spores from Europe and North America. They collected 54 male little brown bats (Myotis lucifugus) from the wild and divided these bats equally into three treatment groups. • Group 1 was inoculated with the North American P. destructans spores (NAGd treatment). • Group 2 was inoculated with the European P. destructans spores (EUGd treatment). • Group 3 was inoculated using the inoculation serum with no spores (Control treatment). All three groups were put into separate dark chambers that simulated the environmental conditions of a cave. All bats began hibernating within the first week of the study. The researchers used infrared cameras to examine the bats’ hibernation over four consecutive intervals of 26 days each. They then used the cameras to determine the total number of times a bat was aroused from hibernation during each interval. Questions 1. Use the graph below to predict what the results will look like if the null hypothesis is supported. The total arousal counts in the control treatment at each interval is graphed for you (open bars). Justifiy your predictions. 2. Use the graph below to predict what the results will look like if the null hypothesis is rejected. The total arousal counts in the control treatment at each interval is graphed for you (open bars). Justify your predictions. Null Supported Total Arousal counts Interval Null Rejected Total Arousal counts Interval NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “No Bats in the Belfry” by Dechaine and Johnson Page 5 2 Credits: Title block photo by David A. Riggs (http://www.flickr.com/photos/driggs/6933593833/sizes/l/), cropped, used in accordance with CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0/). Figure 1 photo by Kevin Wenner/Pennsylvania Game Commision (http://www. portal.state.pa.us/portal/server.pt/document/901415/white-nose_kills_hundreds_of_bats_in_lackawanna_county_pdf ). Figure 2 photo courtesy of Ryan von Linden/New York Department of Environmental Conservation, http://www.flickr.com/photos/usfwshq/5765048289/sizes/l/in/ set-72157626818845664/, used in accordance with CC BY 2.0 (http://creativecommons.org/licenses/by/2.0/deed.en). Case copyright held by the National Center for Case Study Teaching in Science, University at Buffalo, State University of New York. Originally published February 6, 2014. Please see our usage guidelines, which outline our policy concerning permissible reproduction of this work. Part IV – Results Figure 3 (below) shows the real data from the study. There is no data for interval 4 bats that were exposed to the European P. destructans (gray bar) because all of the bats in that group died. Questions 1. How do your predictions compare with the experimental results? Be specific. 2. Do the results support or reject the null hypothesis? 3. If the European P. destructans is causing WNS in North America, how come European bats aren’t dying from the same disease? References U.S. Fish and Wildlife Service. 2012. White-Nose Syndrome. Available at: http://whitenosesyndrome.org/. Last accessed December 20, 2013. Warnecke, L., et al. 2012. Inoculation of bats with European Geomyces destructans supports the novel pathogen hypothesis for the origin of white-nose syndrome. PNAS Online Early Edition: http://www.pnas.org/cgi/ doi/10.1073/pnas.1200374109. Last accessed December 20, 2013. Figure 3. Changes in hibernation patterns in M. lucifugus following inoculation with North American P. destructans (NAGd), European P. destructans (EUGd), or the control serum. Interval Total Arousal counts

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2. When Protagoras said “Man is the measure of all things,” why was this a different and new way of seeing the world? To what degree does contemporary US culture agree with Protagoras?

2. When Protagoras said “Man is the measure of all things,” why was this a different and new way of seeing the world? To what degree does contemporary US culture agree with Protagoras?

  2.    When Protagoras said “Man is the measure of … Read More...
AUCS 340: Ethics in the Professions Homework Assignment: International and US Health Care Systems The following homework assignment will help you to discover some of the differences between the administration of health care in the United States and internationally. This is a research based assignment; remember the use of Wikipedia.com is not an acceptable reference site for this course. You must include a references cited page for this assignment; correctly formatted APA or MLA references are acceptable (simply stating s web address is NOT a complete reference). The answers should be presented in paragraph formation. Staple all pages together for presentation. The first question refers to a country other than the United States of America 1) Socialized Medicine – provide a definition of the term socialized medicine and discuss a country that currently has a socialized medicine system to cover all citizens; this discussion should include the types of services offered to the citizens of this country. When was this system first implemented in this country? What is the name of this country’s health insurance plan? Compare the ranking for the life expectancy for this country to that of the United States. Which is higher? Why? Compare the cost of financing healthcare in this country to the United States in comparison to the amount of annual funding in dollars and the percentage of gross domestic product spent on health care for each country. What rank does this country have in comparison to the United States for overall health of its citizens? (This portion of the assignment should be approximately one page in length and graphic data is acceptable to support some answers, however, graphic information should only be used to explain your written explanation not as the answer to the question.) Bonus: Is this country’s system currently financially stable? Why or why not? The following questions refer to the delivery of healthcare in the United States of America, as it was organized prior to the implementation of the Affordable Care Act (ACA). The ACA is currently being phased into coverage. It is estimated that the answers to the following questions will result in an additional two to three pages of written text in addition to the page for question number one. 2) Medicare – when was it enacted? Who does it cover? Who was President when Medicare was originally passed? What do the specific portions Part A, Part B and Part D cover? When was Part D enacted? Who was President when Part D was enacted? Is the Medicare system currently financially stable? Why or why not. Compare the average life expectancy for males and females when Medicare was originally passed and the average life expectancy of males and females as of 2010; more recent data is acceptable. Bonus: What does Part C cover and when was it enacted? 3) Health Maintenance Organization (HMO) – Define the term health maintenance organization. When did this type of health insurance plan become popular in the United States? How does this type of system provide medical care to the people enrolled? This answer should discuss in network versus out of network coverage. 4) Medicaid- when was it enacted? Who does it cover? Who was President when this insurance plan was enacted? Are the coverage benefits the same state to state? Why or why not? Is the system currently financially stable? Why or why not. What effect does passage of the ACA project to have on enrollment in the Medicaid system? Why? 5) Organ Transplants – What is the mechanism for placement of a patient’s name on the organ transplant list? What is the current length of time a patient must wait for a heart transplant? Explain at least one reason why transplants are considered an ethical issue. How are transplants financed? Give at least one example of how much any type of organ transplant would cost. 6) Health Insurance/Information Portability and Accountability Act (HIPAA) – When was it enacted? Who was President when this legislation as passed? What is the scope of this legislative for the medical community and the general community? (Hint: There are actually two reasons for HIPAA legislation; make sure to state both in your response) 7) Death with Dignity Act – what year was the Oregon Death with Dignity Act passed? What ethical issue is covered by the Death with Dignity Act? List the factors that must be met for a patient to use the Death with Dignity Act. List two additional states that have enacted Death with Dignity Acts and when was the legislation passed in these states? 8) Hospice – what is hospice care? When was it developed? What country was most instrumental in the development of hospice care? Do health insurance plans in the United States cover hospice care? What types of services are covered for hospice care? Grading: 1) Accuracy and completeness of responses = 60% of grade 2) Correct use of sentence structure, spelling and grammar = 30% of grade 3) Appropriate use of references and citations = 10% of grade Simply stating a web page is not an appropriate reference This assignment is due on the date published in the course syllabus.

AUCS 340: Ethics in the Professions Homework Assignment: International and US Health Care Systems The following homework assignment will help you to discover some of the differences between the administration of health care in the United States and internationally. This is a research based assignment; remember the use of Wikipedia.com is not an acceptable reference site for this course. You must include a references cited page for this assignment; correctly formatted APA or MLA references are acceptable (simply stating s web address is NOT a complete reference). The answers should be presented in paragraph formation. Staple all pages together for presentation. The first question refers to a country other than the United States of America 1) Socialized Medicine – provide a definition of the term socialized medicine and discuss a country that currently has a socialized medicine system to cover all citizens; this discussion should include the types of services offered to the citizens of this country. When was this system first implemented in this country? What is the name of this country’s health insurance plan? Compare the ranking for the life expectancy for this country to that of the United States. Which is higher? Why? Compare the cost of financing healthcare in this country to the United States in comparison to the amount of annual funding in dollars and the percentage of gross domestic product spent on health care for each country. What rank does this country have in comparison to the United States for overall health of its citizens? (This portion of the assignment should be approximately one page in length and graphic data is acceptable to support some answers, however, graphic information should only be used to explain your written explanation not as the answer to the question.) Bonus: Is this country’s system currently financially stable? Why or why not? The following questions refer to the delivery of healthcare in the United States of America, as it was organized prior to the implementation of the Affordable Care Act (ACA). The ACA is currently being phased into coverage. It is estimated that the answers to the following questions will result in an additional two to three pages of written text in addition to the page for question number one. 2) Medicare – when was it enacted? Who does it cover? Who was President when Medicare was originally passed? What do the specific portions Part A, Part B and Part D cover? When was Part D enacted? Who was President when Part D was enacted? Is the Medicare system currently financially stable? Why or why not. Compare the average life expectancy for males and females when Medicare was originally passed and the average life expectancy of males and females as of 2010; more recent data is acceptable. Bonus: What does Part C cover and when was it enacted? 3) Health Maintenance Organization (HMO) – Define the term health maintenance organization. When did this type of health insurance plan become popular in the United States? How does this type of system provide medical care to the people enrolled? This answer should discuss in network versus out of network coverage. 4) Medicaid- when was it enacted? Who does it cover? Who was President when this insurance plan was enacted? Are the coverage benefits the same state to state? Why or why not? Is the system currently financially stable? Why or why not. What effect does passage of the ACA project to have on enrollment in the Medicaid system? Why? 5) Organ Transplants – What is the mechanism for placement of a patient’s name on the organ transplant list? What is the current length of time a patient must wait for a heart transplant? Explain at least one reason why transplants are considered an ethical issue. How are transplants financed? Give at least one example of how much any type of organ transplant would cost. 6) Health Insurance/Information Portability and Accountability Act (HIPAA) – When was it enacted? Who was President when this legislation as passed? What is the scope of this legislative for the medical community and the general community? (Hint: There are actually two reasons for HIPAA legislation; make sure to state both in your response) 7) Death with Dignity Act – what year was the Oregon Death with Dignity Act passed? What ethical issue is covered by the Death with Dignity Act? List the factors that must be met for a patient to use the Death with Dignity Act. List two additional states that have enacted Death with Dignity Acts and when was the legislation passed in these states? 8) Hospice – what is hospice care? When was it developed? What country was most instrumental in the development of hospice care? Do health insurance plans in the United States cover hospice care? What types of services are covered for hospice care? Grading: 1) Accuracy and completeness of responses = 60% of grade 2) Correct use of sentence structure, spelling and grammar = 30% of grade 3) Appropriate use of references and citations = 10% of grade Simply stating a web page is not an appropriate reference This assignment is due on the date published in the course syllabus.