Angiotensin II. Describe in detail the physiology of Angiotensin II. Include a detailed description of (1) what it is, (2) where it comes from, and (3) how it is activated. Describe in detail 3 mechanisms that act to activate it (the RAS system) and how and when they operate. Lastly describe each of the physiological effects of AngII and explain how each of these effects contribute to homeostasis. Discuss each separately. Be sure to make clear how each effect contributes to homeostasis.
In: Anatomy and Physiology
The past twenty years have seen advancements in technology that were critical to further understanding concepts in cognitive psychology. Two such developments are positron emission tomography (PET) and magnetic resonance imaging (MRI) scans. These scans allow researchers to “see” the brain in action.
How do the research tools (equipment and methodology) available today contribute to a greater understanding of “conscious processes and immediate experience” than was possible using trained introspection and structuralism?
In: Psychology
Many physics papers now have dozens of authors per paper. Experimental physics may have multi-organizational and multi-country contributing staffs, but I'd guess that most of the names don't contribute a word or equation to a paper, yet they get individual authorship credit. My question is who determines the author list, does everybody listed have editing privilages, and perhaps most importantly, who decides on their listed order?
In: Physics
PART 1
The weighted voting systems for the voters A, B, C, ... are given in the form
{q: w1, w2, w3, w4, ..., wn}.
The weight of voter A is w1, the weight of
voter B is w2, the weight of voter C is
w3, and so on.
Consider the weighted voting system {78: 4, 74, 77}.
(a) Compute the Banzhaf power index for each voter in this system. (Round your answers to the nearest hundredth.)
| BPI(A) | = | |
| BPI(B) | = | |
| BPI(C) | = |
(b) Voter B has a weight of 74 compared to only 4 for voter A, yet
the results of part (a) show that voter A and voter B both have the
same Banzhaf power index. Explain why it seems reasonable, in this
voting system, to assign voters A and B the same Banzhaf power
index. Select one of the following below.
Despite the varied weights, this is a minority system. Any one of the three voters can stop a quota.
Despite the varied weights, this is a dictator system. Voter C controls the outcome, while voters A and B are dummy voters.
Despite the varied weights, in this system, all of the voters are needed for a quota.
Despite the varied weights, in this system, all voters are dummy voters. No voter is critical to a successful outcome.
Despite the varied weights, this is a majority system. Any two of the three voters are needed for a quota.
PART 2
The weighted voting systems for the voters A, B, C, ... are given in the form
At the beginning of each football season, the coaching staff at Vista High School must vote to decide which players to select for the team. They use the weighted voting system {7: 6, 5, 1}. In this voting system, the head coach A has a weight of 6, the assistant coach B has a weight of 5, and the junior varsity coach C has a weight of 1.
(a) Compute the Banzhaf power index for each of the coaches. (Round your answers to the nearest hundredth.)
| BPI(A) | = | |
| BPI(B) | = | |
| BPI(C) | = |
(b) Explain why it seems reasonable that the assistant coach and
the junior varsity coach have the same Banzhaf power index in this
voting system. Select one of the following below.
As to forming a winning coalition, the two minor coaches are the same.
Winning coalitions often include support of different weight.
The weightings for the minor coaches are different, so are their critical votes.
q: w1, w2, w3, w4, ..., w
PART 3
The weight of voter A is w1, the weight of
voter B is w2, the weight of voter C is
w3, and so on.
Calculate, if possible, the Banzhaf power index for each voter.
Round to the nearest hundredth. (If not possible, enter
IMPOSSIBLE.)
{18: 18, 5, 2, 2, 1, 1}
| BPI(A) | = | |
| BPI(B) | = | |
| BPI(C) | = | |
| BPI(D) | = | |
| BPI(E) | = | |
| BPI(F) | = |
In: Advanced Math
A firm’s intrinsic value is an estimate of a stock’s “true” value based on accurate risk and return data. It can be estimated but not measured precisely. A stock’s current price is its market price—the value based on perceived but possibly incorrect information as seen by the marginal investor. From these definitions, you can see that a stock’s “true” long-run value is more closely related to its intrinsic value rather than its current price.
Given the above what do you think Tesla's (Ticker:TSLA (NASDAQ)) intrinsic value is today? Do you believe Elon Musk's actions contribute to that intrinsic value? Can you find evidence of a time where Tesla's market value and it's true value were aligned? For respondents, do agree/disagree and why. Please cite resources appropriately.
In: Operations Management
Your company offers a denied-benefit pension plan to each of its employees. The plan will make a monthly payment to each retiree of $4 thousand, next month. In each subsequent month, the payment will grow by an annualized rate of 2% to adjust for inflation. There are currently 100 retirees, and you estimate that this number will remain the same, indefinitely. The government mandates that (i) pension liabilities must be discounted at an annualized rate of 4%, and (ii) pension liabilities must be 75% funded (that is, the pension fund must be funded at 75% of the present value of the liabilities). (a) How much money must your rm contribute to its pension fund. (b) Consider the following variation on (a). Yours is a young company { a sexy startup. You don't have any retirees right now, but you do make pension promises to your young workers. You estimate that 20 years from now the first cohort of 50 workers will retire, receiving their first monthly payment one month after retiring (received in 241 months). Going forward, you expect the pool of retirees to remain stable, at 50. How much money must your firm contribute now in order to fulfil the government mandate?
In: Finance
After 3 months on the job, you have now been tasked to
provide an investment recommendation to the Board of Directors of
UCW. Currently, UCW is looking to lease an additional 2,000 square
feet in Vancouver House. Assume that it currently has 10,000 square
feet under lease and that the additional potential space is located
on the 1st floor. Zoning for this space provides for multiple
potential uses, including retail, restaurants and education.
You are to propose a recommendation to lease the 2000 square foot
space. What would you use use it for and would it provide a
positive return on investment?
In your analysis, use the knowledge gained in this course,
including the concepts introduced on CVP, incremental and capital
budgeting techniques. Highlight the key inputs and the basis for
the assumptions/ estimates in arriving to your conclusion. You may
identify any factors that you believe would contribute to your
analysis and use external sources from industry to put together
estimates. If a tax rate is needed, for example, provide a
reasonable estimate. Market research on lease rates, etc.. while
not specifically required, will contribute to the quality of the
analysis.
Please include an executive summary, analysis with any
spreadsheets, conclusion and a summary/ list of assumptions
made.
In: Accounting
A nearby park is comprised of 15% pine, 20% elm, 30% alder and 35% cedar. In the spring, the surrounding city is flooded with pollen. You wonder whether these four tree species contribute proportionally to the total pollen count.
Using air traps, you collect pollen samples. After mixing them, you separate out 1000 pollen granules and identify them by species. Here are the data:
| pine | 211 |
| elm | 148 |
| alder | 299 |
| cedar | 342 |
The question of interest is whether the tree species contribute proportionally to pollen count.
Step 2: State the null hypothesis.
Step 3: State the alternative hypothesis.
Step 4: What is the correct level of alpha?
Step 5: Which statistical test are you using?
Step 6: What is the value of the test statistic?
Step 6 continued: How many degrees of freedom in this test?
Step 7: What is the critical value for the test statistic?
Step 8: How does the test statistic compare to the critical value?
Step 9: Based on this comparison, do you accept or reject your null hypothesis?
Step 10: What do you conclude from this analysis?
In: Statistics and Probability
One state lottery game has contestants select 5 different numbers from 1 to 45. The prize if all numbers are matched is 2 million dollars. The tickets are $2 each.
1) How many different ticket possibilities are there?
2)
One state lottery game has contestants select 5 different numbers from 1 to 45. The prize if all numbers are matched is 2 million dollars. The tickets are $2 each.
1) How many different ticket possibilities are there?
2) If a person purchases one ticket, what is the probability of winning? What is the probability of losing?
3) Occasionally, you will hear of a group of people going in together to purchase a large amount of tickets. Suppose a group of 30 purchases 6,000 tickets.
a) How much would each person have to contribute?
b) What is the probability of the group winning? Losing?
If a person purchases one ticket, what is the probability of winning? What is the probability of losing?
3) Occasionally, you will hear of a group of people going in together to purchase a large amount of tickets. Suppose a group of 30 purchases 6,000 tickets.
a) How much would each person have to contribute?
b) What is the probability of the group winning? Losing?
In: Math
In: Statistics and Probability