Question 3.

The outbreak of the HIV/AIDS epidemic in sub-Saharan Africa (SSA) in the 1990s has influenced many aspects of people's life in the region. How do you think the HIV/AIDS epidemic will affect the process of demographic transition for SSA countries that are severely infected? Explain (Note: It is more important for you to provide economic reasoning for any possible effects rather than giving a conclusive answer)

Please offer an explanation and example of the below statement.

As a general statement in computing all the profitability ratios, the analyst must be sensitive to the age of the assets. Plant and equipment purchased 15 years ago may be carried on the books far below its replacement value in an inflationary economy. A 20 percent return on assets purchased in the early 1990s may be inferior to a 15 percent return on newly purchased assets.

Be sure to address each point in the question and explain your argument carefully.

4. Is a large trade deficit good or bad for a country? What is the difference between the U.S. current account deficits of the 1980s and the 1990s?

6. What is the environmental Kuznets curve? “Whether globalization has a positive or a negative impact on the environment depends on whether the scale effects and structural effects are, on balance, positive or negative.” Please describe.

Write the summary.

To date, however, no study specifically had examined whether and in what ways physical fitness might affect how children learn. So researchers at the University of Illinois at Urbana-Champaign recently stepped into that breach, recruiting a group of local 9- and 10-year-old boys and girls, testing their aerobic fitness on a treadmill, and then asking 24 of the most fit and 24 of the least fit to come into the exercise physiology lab and work on some difficult memorization tasks.

Learning is, of course, a complex process, involving not only the taking in and storing of new information in the form of memories, a process known as encoding, but also recalling that information later. Information that cannot be recalled has not really been learned.

Earlier studies of children’s learning styles have shown that most learn more readily if they are tested on material while they are in the process of learning it. In effect, if they are quizzed while memorizing, they remember more easily. Straight memorization, without intermittent reinforcement during the process, is tougher, although it is also how most children study.

In this case, the researchers opted to use both approaches to learning, by providing their young volunteers with iPads onto which several maps of imaginary lands had been loaded. The maps were demarcated into regions, each with a four-letter name. During one learning session, the children were shown these names in place for six seconds. The names then appeared on the map in their correct position six additional times while children stared at and tried to memorize them.

In a separate learning session, region names appeared on a different map in their proper location, then moved to the margins of the map. The children were asked to tap on a name and match it with the correct region, providing in-session testing as they memorized.

A day later, all of the children returned to the lab and were asked to correctly label the various maps’ regions.

The results, published last week in PLoS One, show that, over all, the children performed similarly when they were asked to recall names for the map when their memorization was reinforced by testing.

But when the recall involved the more difficult type of learning — memorizing without intermittent testing — the children who were in better aerobic condition significantly outperformed the less-fit group, remembering about 40 percent of the regions’ names accurately, compared with barely 25 percent accuracy for the out-of-shape kids.

This finding suggests that “higher levels of fitness have their greatest impact in the most challenging situations” that children face intellectually, the study’s authors write. The more difficult something is to learn, the more physical fitness may aid children in learning it.

1.Information Technology leaders, including information assurance and security professionals, communicate through various channels including e-mails, texts, and social media. It is imperative that the IAS professional communicates in a concise, professional, and courteous manner. The tone of the communication impacts how the receiver interprets it. Based on the readings in this unit, you study the different aspects of planning and drafting message with an intended meaning. Employing an adaptive writing technique and use of positive and courteous tone and language will result in a more clearer understanding of the sender/receiver relationship. Based on the Radical Rewrite: Watch Your Tone! (Guffey & Loewy, p. 58), review the scenario and provide at least five specific writing errors. Include examples.

Once again I have the decidedly unpleasant task of reminding all employees that you may NOT utilize company computers or the Internet other than for work-related business and essential personal messages. Effective immediately a new policy must be implemented.

Our guys in IT tell me that our bandwidth is now seriously compromised by some of you boys and girls who are using company computers for Facebooking, blogging, shopping, chatting, gaming, and downloading streaming video. Yes, we have given you the right to use e-mail responsibly for essential personal messages. That does not, however, include checking your Facebook or other social accounts during work hours or downloading shows or sharing music.

We distributed an e-mail policy a little while ago. We have now found it necessary to amplify and extrapolate that policy to include the use of the Internet. If our company fails to control its e-mail and Internet use, you will continue to suffer slow downloads and virus intrusions. You may also lose the right to use e-mail altogether. In the past, every employee has had the right to send a personal e-mail occasionally, but he must use that right carefully. We don’t want to prohibit the personal use of e-mail entirely. Don’t make me do this!

You will be expected to study the attached E-Mail and Internet policy and return the signed form with your agreement to adhere to this policy. You must return this form by March 1. No exceptions!

List at least five specific writing faults and include examples.

A friend of yours has twin 5 year old girls and loves to take them to the pool. You friend tells you, however that the most annoying thing is that although the girls are asked to pee before going into the pool, they generally say they don't have to pee, just to ask to go pee 5 minutes after being in the pool! "What's up with that?!" your friend asks, "Could there be something wrong with the girls, are they just being mischievous? Do you think I should take them to the doctor to see if there is a problem with their bladders? It only ever happens when they go into the pool". As a physiology student, apply your knowledge to explain why the girls tend to have to pee when they go swimming.

Question 1) Using your knowledge of physiology and circulation, how does the body respond if it gets cold, as would be the case during swimming?

1. Which receptor is responsible for detecting cold?
2. What pathway does the information travel up to the brain?
3. Where in the brain is the information received?
4. To conserve heat, where will blood be directed? To the limbs, or to the vital organs?
5. How is blood directed?

Question 2) Now that we know where blood is being directed when the body gets cold, how does that affect the following?

1. Blood pressure
2. Cardiac output
3. ANS
4. Osmoreceptors, Posterior Pituitary and ADH

Questions 3) How do the kidneys respond to the changes that can occur in blood pressure, cardiac output, ANS, Osmoreceptor, Posterior Pituitary and ADH, as noted in the previous questions?

1. How do the kidneys respond to changes in blood pressure?
2. How do the kidneys respond to changes in cardiac output and blood volume?
3. How do the kidneys respond to changes in ANS?
4. How do the kidneys respond to changes detected by osmoreceptors?
5. What hormones regulate water uptake in the kidneys?
6. What are water channels called?
7. In which part (s) of the nephron is water absorbed?

Question 4) Now that you have applied your knowledge, what can you tell your friend about their question? Is there something wrong? (Yes or no). What is your diagnosis?

******PLEASE INDICATE WHICH QUESTION YOU ARE ANSWERING

Six-year-old Georgia is about to enter first grade in an elementary school that became “nut free” at the beginning of the new school year. Georgia’s mother, Robin, wants to prepare nutritionally well-balanced lunches that do not contain nuts or nut products for her daughter to take to school. Georgia is not a picky eater, so she will consume a wide variety of foods. Also, Robin has a small insulated container to keep foods cold until lunchtime. Georgia can purchase low-fat milk at school, and she has access to water in the school’s cafeteria.

1. A sample lunch for Georgia includes a 6-ounce container of Greek yogurt, 6 cherry tomatoes, ½ cup unsweetened applesauce, 10 whole-wheat crackers, and water. To add variety to the lunch, which of the following options could substitute for the Greek yogurt, for a nutrient-dense alternative still meeting MyPlate recommendations?

• Banana

• Low-fat milk

• Hummus and carrot sticks

• Peanut butter

2. Which of the following recommendations can improve Georgia’s nutrient intake while she is in school?

• Include small amounts of foods that are in easy-to-open packaging.

• Include nutrient-dense food items.

• Include a variety of options, so the lunch varies each day of the week.

• All of the choices are correct.

3. Georgia consumes approximately 1200 kcal daily. According to MyPlate guidelines, Georgia should consume _______.

• 1 cup vegetables daily

• 6 oz protein daily

• 3 cups dairy

• 4 oz grain daily

4. Which of the following describes the National School Lunch Program?

• Requires schools to only serve fresh fruits and vegetables

• Federally funded project

• All of the choices are correct.

• Program provides funding to public schools, but not private schools

A researcher claims that the mean of the salaries of elementary school teachers is greater than the mean of the salaries of secondary school teachers in a large school district. The mean of the salaries of a random sample of 26 elementary school teachers is $48,250 and the sample standard deviation is $3900. The mean of the salaries of 24 randomly selected secondary school teachers is $45,630 with a sample standard deviation of $5530. At ? = 0.05, can it be concluded that the mean of the salaries of elementary school teachers is greater than the mean of the salaries of secondary school teachers?

Suppose that there are two schools in a region. 7% of students will move from school A to school B at the end of each year, while 11% of students will move from school B to school A. Suppose that initially 30% of students attend school A and 70% attend school B.

a) Determine the transition matrix and the initial probability vector which can be used to represent this information.

b) Find the percentage of students attending each school at the end of 3 years ( give answers to four decimal places)

School A would like to get more high school students to ride the school bus rather than driving to school each day to reduce traffic congestion around the school. To try to encourage more students to ride the bus, the school decides to raise the daily rate for parking in the school parking lot.

1. Design and describe a study that uses an interrupted time series design to provide evidence as to whether the parking rate increase led to an increase in daily school bus ridership. What evidence would support the idea that the parking rate increase in the School A caused an increase in school bus ridership?

2. Suppose you conclude that school bus ridership increased when the parking rate increased. Identify and describe an example of a threat to internal validity that exists that would limit your ability to attribute the increased ridership to the increase in the parking rate.

3. Describe how you could change the study to utilize a control series design to answer the same question about the relationship between the parking rate increase and school bus ridership. If a study were conducted using a control series design, what results would support the idea that the parking rate increase in the School A (rather than some other factor) caused an increase in school bus ridership?