As the COVID-19 epidemic rages in Ghana, many are seeking answers to the following questions: 1. What are the risk factors for getting infected with COVID-19? 2. What are the risk factors for having symptomatic infection i.e. feeling unwell? 3. What are the risk factors for severe disease (needing hospitalization) and death once a person is infected with COVID-19? Out of the under listed, choose a study design to answer any ONE of the three research questions above: 1. Case-based (prevalent cases) 2. Case-based (incident cases) 3. Case-Cohort (incident cases) 4. Density/Nested (incident cases) 5. Case-Crossover (incident cases) 6. Retrospective cohort 7. Community trial 8. Randomized controlled trial Question 1 Describe the design you select for carrying out the study to answer the research question you selected. In your description, be sure to capture as many elements as possible which highlight the design. E.g. if the simple case-control design was one of the options and you had selected it (note it is not one of the options), you would have to clearly define who your cases would be and who your controls would be, as well as when and how you would identify them etc. Type your response here. Word limit: min 600, max 1,000 Question 2 Provide three specific and practical reasons for your choice of study design for the research question you selected as opposed to any other of the designs. Do not simply state the generic strengths or advantages of your chosen study design, but make them specific to the research question. Type your response here. Word limit: min 200, max 500 Question 3 For each study design you have described to address the research questions, provide three possible research biases and how you would solve them. Do not simply state generic biases and how they are addressed, but be practical about it and how it relates specifically to the research question.

QUESTION 33

1.              In order to BEST test a causal hypothesis about an exposure and outcome, the researcher should                                           incorporate which of the following elements into their study?

2 points   

QUESTION 34

1.             Sustainable development considers the following main factors when addressing a global health issue:

2 points   

QUESTION 35

1.             Rising temperature impacts vector-borne disease transmission through:

2 points   

QUESTION 36

1.    Industrialization has contribute to the spread of emerging communicable diseases.

True

False

2 points   

QUESTION 37

1.               Compared to other study designs, studies that use the _________ design yield results that are the most                                   difficult to interpret.

2 points   

QUESTION 38

1.             According to the WHO, approximately 1.2 billion worldwide live in poverty.

True

False

2 points   

QUESTION 39

1.              The most effective intervention to decrease WASH-related disease transmission is:

2 points   

QUESTION 40

1.      Which of the following is a strength of using a cohort study design?

2 points   

QUESTION 41

1.             When examining the global HIV data between 2000 and 2015, the number of people living with HIV _______ and the number of people who received HIV treatment _________.

a) Describe the Democritian model for the atom.

b) Describe the Thomson model for the atom. What experiment led to its formulation?

c) Describe the Rutherford model for the atom. What experiment led to its formulation?

d) Describe the Bohr atom. What experimental evidence led to its formulation?

How do we get two lines of interference pattern in the experiment of finding the wavelength of monochromatic light using a Lloyd's mirror?

Please explain with the help of a diagram. Also tell why there is a dark fringe at the middle instead of a white fringe like in Young's double slit experiment.

a. Explain and provide reasons for how you would assign participants to groups for an experiment that wants to study Masters of Professional Accounting students and the effects of participation in group work training on satisfaction with a group work project.

b. What are some factors that might impact the results of your experiment in (a).?

Determine if the greatest % salinity at which bacteria was able to grow at the end of the experiment is significantly different than at the start of the experiment by using the t-test.

Pooled Data:

How can I use this topic in a study or experiment scenario: adolescent dating violence? Questionnaires, independent variables, dependent variables, participants, ages? I like the topic, but I am having a hard time determining how the experiment should go for my psychology class.

Suppose U is a subspace of a finite dimensional vector space V. Prove there exists an operator T on V such that the null space of T is U.

Find general solution to the differential equation x'(t) = Ax(t) + v, A = [ 2 −2; 2 2] , v = (2 0) .

Brief the following Cases:

Eisner v. Macomber 252 U.S. 189 (1920)

Cheek v. U.S. 498 U.S. 192 (1991)