Pathologies (diseases) that afflict the human body are intriguing topics and are of great concern and interest in a Human Biology course

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Pathologies (diseases) that afflict the human body are intriguing topics and are of great concern and interest in a Human Biology course. The health effects and clinical manifestations are wide spread and may impact various body systems. Therefore, for this assignment, you are to select a human pathology (disease) and describe in detail how it affects the human body. You will be expected to discuss clinical signs/symptoms, identify the pathogen (what organism causes the disease), its pathogenesis, epidemiology, and possible treatments/cures, and why the disease is more or less prevalent in developed nations (i.e. disease prevalence in first vs. third world nations and how this may relate to cultural differences). The paper must be 5 pages in length, have at least 7 references, and written in APA format.

(The topic I have chosen is Diabetes)

 

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Cell Biology Review Video Outline

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Module 1: Module 1 – Cell Biology Review Video Outline



Dear students,
People come into this class from many different backgrounds and different knowledge levels with regards to biology.  It’s difficult to understand immunology if you don’t first have a basic understanding of the components of a cell and how they work together.  

Your homework assignment for this week is to watch and write up a video outline on the video entitled “Cell Communication”.  A link to this video can be found in the Webliography in the Week 1 category.  This video provides an overview of how immune cells communicate with each other.

Submit an outline of the video to the appropriate Dropbox by the end of the first academic week (Wed, Jan 21).  A general template for video outlines is available under Doc Sharing and additional information on writing up your video outlines can be found in the syllabus.

Another video that is suggested, but NOT required, is the video entitled “A Tour of the Cell”.  This video can also be found in the Webliography for this class and reviews good, basic background information on cell biology.  I suggest watching this video but you do NOT need to submit an outline for it.

 

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To do this analysis, we will utilize natality data for the United States, provided by the Centers for Disease Control.

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The normal male to female live birth sex ratio ranges from about 1.03 to 1.07. The sex ratio is defined as the ratio of male births to female births. You might expect boy and girl births to be equally likely, but in fact, baby boys are somewhat more common than baby girls.

Higher sex ratios are thought to reflect prenatal sex selection, especially among cultures where sons are prized more heavily than daughters. We will review sex ratios in the United States as a whole, as well as in individual states, to determine whether sex ratios vary significantly among various ethnic and racial groups.

To do this analysis, we will utilize natality data for the United States, provided by the Centers for Disease Control.

In the first part of the assignment, we will look at sex ratios for your home state, over the time period 1995 to 2002, by race. To obtain this information:

  • Go the CDC Wonder website,
  • Click on Births under the WONDER Online Databases to bring you to the Natality Information screen
  • On this screen, click Natality for 1995-2002.
  • On the following screen, click I Agreein order to agree to abide by the government rules for data use (primarily, concerning confidentiality).
    • This will bring us to the Natality, 1995-2002 Request screen.
    • In the block 1. Organize table layout, group results by year, followed by race, and then gender.
    • In the block 2. Select maternal residence, choose your state.
    • You can leave blocks 3 through 6 at their default values (i.e., All).
    • Click Send.
  • A new screen will open, with data (births) tabulated by Year, Race, and Gender.
  • Click Export, click Save, and a text file named Natality, _1995-2002 .txt or something similar will be downloaded onto your computer.

We can now process the downloaded data in Excel.

  • Load the text file into Excel. This will probably open the Text Import Wizard.
    • Accept the defaults, and you should have a spreadsheet with the natality data entered.
  • We will need to edit the data slightly before calculating sex ratios and drawing graphs of the sex ratios. To do this:
    • Scroll down to the end of the spreadsheet, and delete the rows with the extraneous information about the dataset. (This starts on or about row 203.)
    • You may also delete the columns with headings Year CodeRace Code, and Gender Code since we will not be using them, however this is not necessary.
    • Next, sort the data, in order to delete some extraneous rows. Select the remaining columns, choose Data > Sort, then sort by Race in ascending order.
    • Scroll down to the end of the worksheet, and delete all rows with blanks for Race.
    • We will now add a new column to the worksheet for ratios.
      • Go to the first blank column in the worksheet: this column should be immediately to the right of a column labeled Births.
      • In the first row of this column, type Ratios.
    • Now, we will calculate different proportions of births, using formulas in excel. It is important to use excel to do the calculation, because it will allow you to quickly complete all of the ratios.
      • First, calculate the ratio of female births to total births for the American Indian race (female births/total births).
      • Next, calculate the ratio of male births to total births for the American Indian race (male births/total births).
      • Finally, calculate the ratio of male births to female births (male births/total births)
      • If you don’t know how to do this calculation easily in Excel, please check out the screencast, which reviews this.
      • Once you have completed the first three cells in the ratio column, you can select them and copy them.
      • Select the remaining cells in the column and paste.
      • You have now completed calculating all of the ratios, however, you may wish to double check to ensure that the formulas have adjusted for each cell.     
    • Once you have the Ratio column filled out, select that column, then Copy.
    • With the column still selected you want to select, click Paste Special and then Values. This will convert the formulas you entered to numbers, so they do not change when you do the next sort.
  • Select all the columns, then Data>Sort>Notesin ascending order. We will be graphing the sex ratios for the years 1995 to 2002, by race.
    • Feel free to drop the two to four races that have the fewest numbers of births in your state.
  • Draw a line chart with markers with the year along the X-axis (we are looking at 1995 through 2002) and sex ratio along the Y-axis (with sex ratios typically between 1 and 1.1, though this may vary in your state).
    • If your version of excel has the Chart Wizard:
      • In step two of the Chart Wizard, choose the Series tab; in this window you’ll be adding all the information for the various plots.
      • Under category (X) axis labels, drag your mouse over the cells 1995, 1996… 2002.
      • For values, draw your mouse over the seven successive sex ratios for the particular racial group you chose; in the name box, enter the racial group; do this for each of the groups you want to display.
      • Select Next when you have finished with all the racial groups, and you will be brought to the Chart Options screen.
      • Here, you can customize your graph, with a title and X and Y axis labels (i.e., your state births, year, and sex ratio respectively).
      • Continue with Next, and finish the graph.
    • If your version of excel does not have the Chart Wizard, you will need to do some reformatting of your data before you can create a line chart. It is good practice to create a new worksheet in order to preserve your original data.
      • Your data should mimic the way you want your line chart to look. In this case, you want to create horizontal labels for each of the years (1995 through 2002) and vertical labels for each of the races. It should follow this format:
 

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Choose only 1 of the cases listed below and explain how the physical evidence recovered from the crime scene was tested and analyzed to solve the crime.

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So far in this course, your study has been concentrated on the origin, developmental stages, and many uses of DNA to solve crimes. You have studied how various body fluids such as blood, saliva, and semen are tested, as well as identified the importance of mtDNA and nuclear DNA in DNA profiling. Below are several case studies that were solved using the procedures and analyses studied in class, and the application of the information obtained was used to solve the criminal investigation.

Choose only 1 of the cases listed below and explain how the physical evidence recovered from the crime scene was tested and analyzed to solve the crime.

Case Study 1

A man and his wife were on vacation in Paris. On the way back to the hotel, they were approached by two men with weapons who demanded their jewelry. A physical interaction occurred in which the robbers violently wrestled the man to the ground and removed his watch and rings while his wife tried to run away. The man and his wife were shot and killed. The bodies of the two victims were pulled into an alley. Multiple scratches were on the body of the male victim, and blood was also found on the female victim because the robbers tore the necklace, rings, and earrings off that she was wearing. The two men committing the crime both had previous records for assault and robbery. How were the men convicted of the crime?

Case Study 2After 10 years of being free, a man was convicted of a rape after DNA evidence was allowed to be used. The female he raped was not able to make an identification, so the attorney had to get permission to do a DNA profile on the suspect. The suspect had lived as a neighbor of the victim, only a few houses away. This man was considered a family friend; however, after the rape incident occurred, he abruptly moved to another state. How was he convicted or exonerated?

Assignment Guidelines

  • Address the following in 4–5 pages :
    • What exactly is DNA profiling? Explain in detail.
      • How it is used to solve crimes? Explain in detail.
    • Regarding your selected case study:
      • What physical evidence would be retrieved from the crime scene?
        • Identify each item of physical evidence, and fully justify your decision to collect it as evidence.
      • What type(s) of DNA tests are required to investigate the crime you have chosen? Explain in detail, and fully support your argument.
        • What is the testing process for the technique(s) used to test each piece of evidence? Be specific, and explain in detail.
    • After analyzing the evidence, explain how the evidence exonerated or convicted the suspects.
  • Be sure to reference all sources using APA style.
 

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How would this policy affect the five people listed(look in attached file) ?

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TOPIC:: For example a quality of care issue could be the hospital’s policy to have only one registered nurse per shift on the surgical floor.This is an issue that would/could affect the quality of care a patient receives.  How would this policy affect the five people listed(look in attached file) ? Your answer MUST be defended with CURRENT data.

This assignment will allow you to apply the legal and ethical analysis skills you are acquiring in the class. 

  • The case analysis must utilize APA formatting,
  • Minimum  3 references [with in-text citations] and
  • Maximum 4-6 pages [excluding title and reference pages].
  • A title page, an introduction, a conclusion and reference page(s) must be included 
 

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How the changes of biodiversity have brought about assemblages following coral loss and coral bleaching

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Topic:

How the changes of biodiversity have brought about assemblages following coral loss and coral bleaching

Your paper should examine a significant issue or problem around biodiversity taking into account multiple factors and perspectives. Examine the causes and implications for the future. You should examine possible solutions and the positive and negative impact these solutions will have at a local, regional and international level.

1. The length needs to be 10-12 pages, (250 words per page is our standard, so that would be 2500+ words of text) do not count the title page or reference page

2. The standard expectation for a science paper is 2+ academic references per page, does not include dictionary references for terms etc. Wikipedia, encyclopedias and blogs are not acceptable.

3. Make sure you perform a thorough library research for articles and find at least 10 substantial papers on the topic.

 

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The Ecosystem

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The Ecosystem

Read the article titled, “Lab ecosystems show signs of evolving.”  Provide your thoughts on how we could make our ecosystem better.  How is our ecosystem affected today?  Explain what was intriguing to you after reading this article.

·         Article Title: Lab ecosystems show signs of evolving

·         Publisher: Society for Science & the Public

·         Author: Milius, Susan

·        

Identifier: http://search.proquest.com/abitrade/docview/197528630/abstract/embedded/J3QDHREJUHMZORQ9?source=fedsrch

·         ISSN: 00368423

Source: Science News, 158(3), 39p

 

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Age Discrimination in Employment Act?

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Topic::: What is the current status of the Age Discrimination in Employment Act? Is the legislation really necessary? Why or why not. Support your answer.  How would you improve or make this piece of legislation more defined?

 At least 3 CURRENT academic references [NOT including textbook]are expected, cited in-text and referenced in proper APA format. Initial discussion responses must be a minimum of 500 words or more. Two [2] peer responses are required; each must be 300 words or more in length and each with at least one reference to support your opinion. Important – you will not be able to see your peers posts until you post your own.

 

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