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A study was done for young adults to look at the link between taking a drivers education class and the risk of being in an automobie accident. 450 participants were invloved in the study, 150 cases who had been in an accident and 300 controls who had not. Of 150 cases, 70 reported having taken a driver's education class. Of 300 controls, 170 reported having taken a driver's education course.
Determine and interpret the suitable measure of association between the driver's education and the accidents.
The question arose as to if the gender might be an effect modifier of this association. When gender was assessed the data looked just as the following:
Women
men
Accident
No accident
Drivers Ed
10
50
60
120
No drivers Ed
40
80
Carry out the suitable calculations in order to test for effect modification. Interpret your results.
Acetylcholine acts at the G-protein-linked receptor on heart muscle to make the heart beat more slowly by the effect of the G protein on a K+ channel. Which one or more of next would enhance this effect of acetylcholine.
Calculate the steady state concentration of radon in the huse assume the ambient concentration is negligible. What is the genus of these bacteria.
Compute the number of RBC if the dilution is 1:50, the cell count is 400 cells counted in five (5) RBC squares of the hemocytometer.
Anatomical attributes that are reduced and functionless in organisms but related to functional organs in related organisms are termed. Vestigial. Homologous.
You cross an M1M2 father with an M2M3 mother and ?nd out that the mean number of nosehairs in dissimilar marker genotypes in their offspring are as follows.
If a transferrin receptor has a cross-sectional area of 50 Angstroms X 100 angstroms (5x10nm), and how many receptors could be accomodated in a 100nm clathrin-coated vesicle assume that only 50% of surface area can be occupied by proteins.
Explain how this could be considered a negative feedback mechanism. The amino acid residues at the active site are highly hydrophobic. In designing a drug that would bind to the active site and jam it, researchers must use which type of molecule.
The client is 52years old and has a history of hypertension. His cholesterol level is 245. He states his job is very stressful. He admits he is overweight. His father died of stroke at age 60. The nurse encourages him to eat fish. Why is the nurse te..
Which characteristic of cell membranes might explain why fat-soluble substances such as chloroform and ether rapidly affect cells.
Describe why digestion of lipids is difficult for digestive enzymes? What should happen to fats or lipids in order for digestion to be complete.
Assume that the rate of sea-floor spreading was constant during the 1-million-year period depicted above, what have to be the approximate age of marine fossils found in undisturbed sedimentary rock instantly overlying the igneous rock at the arrow la..
Throughout pairing homologous regions associate with one another. As a result individual heterozygous for an inversion will form a structure known as an inversion loop. What is consequence of a crossover within this inverted region.
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