HUMAN GROWTH HORMONE

1. Describe the ligand and any external receptors that bind to the ligand. If signaling can occur without an external ligand, explain how this can occur.

2. Describe how the signal is translocated from the exterior of the cell to the interior of the cell. Be sure to describe the specific activity of the receptor in initiating the intracellular signal.

3. Describe the propagation of the signal within the cell from the membrane receptor to the point of cellular response. Provide the details for at least one specific protein interaction that either results in the activation or inactivation of a subsequent protein or signaling molecule to propagate the signal.

4. What is a specific cellular response to the signal. Something will change- what is it?

The chapter notes that some firms choose to outsource their human resource management systems.  If a firm has a core value of respecting its employees and rewarding top performance with training, raises, and promotions, does outsourcing HR management show a lack of commitment by the firm?  HR management systems are software applications that typically manage payroll, benefits, hiring , and performance appraisal. What are the advantages and disadvantages of this decision? Think of ways that a firm can continue to show its commitment to treat employees with respect.  

the length of human pregnancies from conception to birth varies according to an approximately normal distribution with a mean of 266 days and a standard deviation of 16 days.

a) what percent of pregnancies will last fewer than 215 days?

b) what is the probability that a randomly selected pregnancy lasts between 250 and 280 days?

c) 7.5% of all pregnancies last longer than how many days?

d) the central of 70% of all pregnancies lengths fall between what two values?

Answer according to the human capital model. Assume there are not any non-pecuniary benefits or costs. Also, assume the interest rate is 0.

2. Imagine you are in high school and have to decide whether or not to go to college. If you don’t go to college you can make $30,000 annually until you retire (that is, for 40 years). You must pay $10,000 annually to study 4 years of college. Imagine after graduating you could make $40,000 annually.

a. Should you go to college? Explain with calculations.

b. Now imagine you know that you will stop working for 4 years at some point because you will have kids. Imagine your salary will remain the same after your break. Should you still go to college?

c. Imagine now you have to decide whether to go to college to study economics or computer science. Your salary as an economist will be $40,000 and it will remain the same after your 4 years off from having kids. Your salary as a computer scientist will be $50,000 but it will go down 25% if you stop for 4 years. How many years at a minimum would you have to wait to have kids so that your lifetime earnings as a computer science equal that of an economist? (Use decimals in your answer).

d. Now imagine you can hire a nanny so that you don’t need to stop working after you have kids. If you are a computer scientist, how much at most will you be willing to pay her per year if you want to have kids 10 years after you graduated from college? Does this mean that you should be a nanny instead of a computer scientist?

Lester Hollar is vice president for human resources for a large manufacturing company. In recent years, he has noticed an increase in absenteeism, which he thinks is related to the general health of the employees. Four years ago, in an attempt to improve the situation, he began a fitness program in which employees exercise during their lunch hour. To evaluate the program, he selected a random sample of eight participants and found the number of days each was absent in the six months before the exercise program began and in the last six months. Below are the results.

At the .05 significance level, can he conclude that the number of absences has declined? Estimate the p-value.

a. State the decision rule for 0.05 significance level: H₀ : μ_d≤ 0; H₁ : μ_d > 0. (Round the final answer to 3 decimal places.)

Reject H₀ if t >  .

b. Compute the value of the test statistic. (Round the final answer to 3 decimal places.)

Value of the test statistic            

c. Estimate the p-value? (Round the final answer to 4 decimal places.)

d. What is your decision regarding H₀?

At the 0.05 significance level,  (Click to select)  reject  do not reject  H₀.

Please, answer according to the human capital model. Assume there are no non-pecuniary benefits or costs. Also, assume the interest rate is 0.

2. Imagine you are in high school and have to decide whether or not to go to college. If you don’t go to college you can make $30,000 annually until you retire (that is, for 40 years). You must pay $10,000 annually to study 4 years of college. Imagine after graduating you could make $40,000 annually.

a. Should you go to college? Explain with calculations.

b. Now imagine you know that you will stop working at some time for 4 years because you will have kids. Imagine your salary will remain the same after your break. Should you still go to college?

c. Imagine now you have to decide whether to go to college to study economics or computer science. Your salary as an economist will be $40,000 and it will remain the same after your break. Your salary as a computer science will be $50,000 but it will go down 25% if you stop for 4 years. How many years at a minimum would you have to wait to have kids, so that your lifetime earnings as a computer science equal that of an economist? (Use decimals in your answer).

d. Now imagine you can hire a nanny so that you don’t need to stop working after you have kids. If you are a computer scientist, how much at most will you be willing to pay her per year, if you want to have kids 10 years after you graduated from college? Does this mean that you should be a nanny instead of a computer scientist?

For this deliverable, you will evaluate software suitability, human systems integration, survivability,

and interoperability issues for the SWARM Unmanned Aerial Vehicle (UAV) system. Provide a report that summarizes your findings for this analysis.

5.1 Software suitability

For this task, in the Maier and Rechtin text, in other course material, and your general knowledge of software.

Identify three software suitability characteristics that you select as the highest priority for the UAV System. For each characteristic, justify why you selected it as a high priority for this system.

For each software suitability characteristics identied above, construct a well-written sample software suitability requirement that could be included in the system requirements for the UAV SWARM system.

For each of your software suitability requirements, discuss the test and evaluation activities needed to provide the basis for the final acceptance of the SWARM UAV system. Include estimates of the cost, duration, personnel, equipment, ranges, and other factors necessary for test, evaluation, and acceptance.

For each estimate, provide a rationale.

5.2 Usability, survivability, & interoperability

Identify one potential issue for each of the following ilities that applies specifically to the SWARM UAV system, and discuss a feasible solution to address the issue

usability

survivability

interoperability with an external system

5.3 Overall suitability

Clearly state you nal conclusion about the overall suitability of the UAV SWARM system as a research platform. Provide justication of your nal conclusion by using the key results from your previous analyses done for the system.

Lester Hollar is vice president for human resources for a large manufacturing company. In recent years, he has noticed an increase in absenteeism that he thinks is related to the general health of the employees. Four years ago, in an attempt to improve the situation, he began a fitness program in which employees exercise during their lunch hour. To evaluate the program, he selected a random sample of eight participants and found the number of days each was absent in the six months before the exercise program began and in the six months following the exercise program. Below are the results.

At the 0.010 significance level, can he conclude that the number of absences has declined? Estimate the p-value.

1. State the decision rule for 0.010 significance level. (Round your answer to 3 decimal places.)

2. Compute the test statistic. (Round your answer to 3 decimal places.)

3. The p-value is

• Between 0.01 and 0.025

• Between 0.001 and 0.005

• Between 0.005 and 0.01

4. State your decision about the null hypothesis.

• Do not reject H₀

• Reject H₀

1. The most dangerous microbial agents have what portal of entry into the human body? a. respiratory c. parenteral
b. urogenital d. fecal

2. In addition to digested food, where do carbohydrates come from in the large intestine? a. mucus secretions; b. dead cells; c. saccharolytic fungi;
d. arteries

90. Why do the residents of our normal microbiota not regularly invade other tissues of the body?

    1. They are inhibited by pathogens.

    2. They have not evolved the ability.

    3. They are not able to survive in other tissues.

    4. Our normal microbiota does regularly invade other tissues of the body.

Thank you very much!!!

10. Over the past year, the vice president for human resources at a large medical center has run a series of three-month workshops aimed at increasing worker motivation and performance. To check the effectiveness of the workshops, she selected a random sample of 35 employees from the personnel files. She collected the employee performance ratings recorded before and after workshop attendance and stored the paired ratings in the Excel data file for this assignment under the tab Perform.   

Conduct the appropriate hypothesis test and then state your findings and conclusions regarding the value of these workshops. (Significance level of 5%)

1. State your null and alternative hypothesis.
2. What is the conclusion of your test? Justify your answer, including an interpretation of the confidence interval and the p-value.
3. Assuming the cost of the training is $1000 per employee, what would be your decision regarding these workshops under the assumption that an increase in performance of at least 10% would justify the cost?

   Before	After
   59	72
   72	74
   89	62
   67	74
   81	78
   88	86
   71	81
   67	72
   78	77
   64	85
   72	80
   89	80
   87	76
   69	86
   61	84
   82	80
   82	87
   65	82
   80	76
   70	80
   76	79
   78	88
   77	83
   74	83
   63	81
   62	76
   84	79
   71	81
   68	86
   88	89
   73	75
   77	71
   83	78
   82	78
   60	94