Questions
32. Long-term changes related to extended time in space have been observed in A. bone formation...

32. Long-term changes related to extended time in space have been observed in
A. bone formation
B. telomeres
C. the immune system
D. DNA
E. all of the above
38.Transfer of information from the human brain to a computer would involve all memory processes.
true
false
39. The Brain Preservation Foundation aims to preserve brains so that their connectomes are retained and recoverable, with the hope of recovering encoded memories.
true
false
40. The nervous system is affected by aging due to
A. loss of white matter
B. increase lag time of firing neurons
C. increased susceptibility to illness
42. Changes in heart muscle mass in Martian humans will increase the likelihood of
A. hypertension
B. heart failure
C. diabetes
D. renal failure
43. Getting to Mars could be accomplished using this method, in which one small vehicle would be utilized to descend to the surface of Mars and return up to Mars’ orbit, where it will rendezvous with another spacecraft
A. Mars Orbit Rendezvous
B. Earth-Mars Rendezvous
C. Space X
47. Since the thymus gland atrophies as aging occurs,
A. immunity increases
B. immunity decreases
C. there is no change to immunity

In: Biology

Azu Company Limited is divided into four (4) cost centers. That is A, B, as production...

Azu Company Limited is divided into four (4) cost centers.

That is A, B, as production departments and Human Resource & Repairs as service departments The actual cost of a period is as follows

                                                A                     B                     HR           Repairs

                                                GHS                 GHS                 GHS           GHS

Indirect materials                   35                     150                  -                       25

Maintenance wages               160                   250                  300                  325

Other overheads as follows:

                                                                        GHS

Supervision                                                     1500

Power                                                              1800

Rent                                                                300

Repairs of plants                                             1200

Depreciation of plants                                     850

Depreciation of building                                   720

The following information is available in respect of the departments:

                                                            A                     B                     HR            Repairs

Area occupied in square feet              1500              1100                900                  500

Number of employees                               20              15                    10                    5

Value of plant £                                  6000               4500                3000                1500

HZ Power                                              10000               9000             6000                5000

Required

  1. Prepare an overhead analysis sheet by the most reasonable approach and estimate the overhead cost incurred in each cost center                                      (6marks)
  1. Department A & B are production departments whereas HR & Repairs are there to service these production departments. Assume these two service departments do not render any service to each other. Using equitable and fair as appropriate as possible re-apportion the HR & Repairs overheads to the production departments (4marks)                                                                                         

In: Accounting

Transmission of pathogens from animals to humans typically occurs in situations where humans are consuming bushmeat,...

Transmission of pathogens from animals to humans typically occurs in situations where humans are consuming bushmeat, illegally trading endangered animals, and/or entering into wild habitats. Why is an understanding of animal diversity and issues of animal trafficking critical not only for the conservation and preservation of animals and natural habitats, but also essential for global human health? Discuss this in terms of COVID 19, Ebola, and AIDS. In your answer include information on the following: a) What vertebrates are believed to be implicated as the source in COVID 19 and Ebola? Do we know which species/family/order is involved? If so, name the species/family/order. How has/is our lack of knowledge surrounding animal diversity limiting our ability to identify the source of these pathogens? b) For COVID 19, I mentioned during lecture that researchers suspect that the pangolin might be an intermediary in the transmission of this virus. What is a pangolin? In describing it, provide some information on where it lives, what family it belongs to, its current situation in the illegal animal trade and why it is believed to be a possible link in transmission. c) What vertebrate is believed to be the source of the virus responsible for AIDS? When, where and how did the virus make the jump to humans?

In: Biology

A large telecommunications corporation is planning to issue a new scheme involving a revision of its...

A large telecommunications corporation is planning to issue a new scheme involving a revision of its pay scheme. The scheme involves plans to raise the basic salary and reduce overtime payment. It is believed that there might be different views about the scheme among staff — namely between general support staff and technical staff who are more frequently required to work overtime. The percentages of the two categories of staff to the whole corporation are about 80% and 20% respectively. The Director of Human Resources is going to solicit the views of the staff in general about the revision. As all the selected members of staff are to be interviewed face-to-face, he can only take a sample of size 50.

(a) Elaborate briefly on how to collect a simple random sample from the corporation to collect relevant views of staff about the revision of the pay scheme.

(b) Comment on the suitability of using cluster sampling to collect the required sample where one cluster containing general supporting staff and another cluster containing the technical staff are to be formed.

(c) Other than the aforementioned two sampling methods, cite another sampling method that is better in general for collecting a representative sample to reflect the views of staff about the revision of the pay scheme. Explain briefly.

In: Statistics and Probability

Indicate if the following are true or false. 1. Microbial reproduction will be interrupted by the...

Indicate if the following are true or false.

1. Microbial reproduction will be interrupted by the lack of liquid water and freezing.

2. The primary functions of the immune system are to Differentiate between “self’ and “non-self” and to destroy that which is “non-self.

3. Microbial antagonism occurs when two microorganisms team-up to cause an infectious disease.

4. Chemotherapeutic Agents are chemicals used internally to kill or inhibit the growth of microorganisms within the host tissue.

5. Morbidity rate: is the ratio of the number of people who contracted a particular disease during a specific period per a specified population.

6. The three states of matter - solid, liquid and gas, can be explained by the relative amount of energy possessed by their molecules.

7. Both pathology and epidemiology can be defined as the study of diseases. While the Pathologists studies the structural and functional manifestation of the disease, the Epidemiologist studies the distribution and determinants of diseases in human population

8. Buffers are mixture containing a weak acid and a salt which operate to maintain a constant pH in a solution.

9. Dry heat is more effective than Moist heat at high temperatures and shorter period of time

10. Microorganisms play an important role in the cycling of nutrients and elements like nitrogen, carbon, oxygen, sulfur, and phosphorus.

In: Biology

babies at risk weights of new born babies in the United States are normally distributed with a mean of 3420 g

 

1) babies at risk weights of new born babies in the United States are normally distributed with a mean of 3420 g and a standard deviation of 495(based on data from "birth weight and prenatal mortality" by Wilcox et al., journal of the American medical association, via. 273 No.9). A newborn weighing less than 2200 g is considered to be at risk, because the mortality rate for this group is at least 1%. what percentage of newborn babies are in the "at-risk" category? if the Chicago general hospital has 900 births in a year. how many of the babies are in the "at-risk" category?

2) Measurements of human skulls from different epochs are analyzed to determine whether they change over time. The maximum breadth is measured for skulls from Egyptian males who lived around 3300 B.C. Results show that those breadths are normally distributed with a mean of 132.6 mm and a standard deviation of 5.4 mm. An archeologist discovers a male Egyptian skull and a field measurement reveals a maximum breadth of 124 mm. Find the probability of getting a value of 124 mm or less if a skull is randomly selected from the period around 3300 B.C. Is the newly found skull likely to come from that era?

In: Statistics and Probability

1) SAT Test Required Scores The scores for males on the math portion of the SAT I test are normally distributed with a mean of 531 and a standard deviation of 114(based on data from the college board).

 

1) SAT Test Required Scores The scores for males on the math portion of the SAT I test are normally distributed with a mean of 531 and a standard deviation of 114(based on data from the college board). If the college of Florida includes a minimum score 600 among its requirement what percentage of males do not satisfy that requirement?

2)Finding Percentage of fever temperatures Based on the sample results in Data Set 6 in Appendix B, assume that human body temperatures are normally distributed with a mean of 98.20°F and a standard deviation of 0.62°F . Bellevue Hospital in New York City uses 100.6°F as the lowest temperature considered to be a fever. What percentage of normal and healthy persons would be considered to have a fever? Does this percentage suggest that a cutoff of 100.6°F is appropriate?

3) finding percentage of Pepsi cans under 12oz can of regular Pepsi are labaled as containing 12 oz. Assume that the actual contents are normally distributed with a mean of 12.29oz and a Standard deviation of 0.09oz(based on data set 1 in appendix b) what percentage of cans obtain less than the 12oz printed on the label? are many consumers being cheated?

In: Statistics and Probability

Which two alleles a person has for a particular trait is their: _______________________ A person’s observable...

  1. Which two alleles a person has for a particular trait is their: _______________________
  1. A person’s observable trait as a result of which alleles they have is their: ____________________
  1. Some traits are controlled by many genes, such as height. Such traits are called

_________________________________________

  1. When an organism has two identical alleles at a particular locus, we say their

genotype is: ___________________________

  1. If two different alleles are expressed in the phenotype equally and distinctly, such as the A and

B blood groups, we call these alleles: __________________________

  1. A couple is going to have children, and one of them has freckles and the other has no freckles. We know their genotypes are FF and ff. Set up a Punnett square.

F = freckles

f = no freckles

Freckles is dominant over no freckles

  1. In the above cross, what are the chances that this couple will have a baby with freckles?

_______________

  1. Von Willebrand disease is a recessive blood clotting disorder, heterozygotes are phenotypically normal. There is no test available to distinguish carriers. Two people are going to start a family, both of whom have a full sibling with Von Willebrand disease. What are the odds that each of them individually is a carrier? Keep in mind, we already know these two do not have the disease.
  1. Why are most of the colorblind humans males? (use chromosomes to explain)

_______________________________________________________________________________

_______________________________________________________________________________

  1. Name a human disease syndrome caused by aneuploidy (not cancer): _______________________

In: Biology

In search of a mosquito repellent that is safer than the ones that are currently on...

In search of a mosquito repellent that is safer than the ones that are currently on the market, scientists have developed a new compound that is rated as less toxic than the current compound, thus making a repellent that contains this new compound safer for human use. Scientists also believe that a repellent containing the new compound will be more effective than the ones that contain the current compound. To test the effectiveness of the new compound versus that of the current compound, scientists have randomly selected 100 people from a state.

Up to 100 bins, with an equal number of mosquitoes in each bin, are available for use in the study. After a compound is applied to a participant’s forearm, the participant will insert his or her forearm into a bin for 1 minute, and the number of mosquito bites on the arm at the end of that time will be determined.

a) Suppose this study is to be conducted using a completely randomized design. Describe a randomization process and identify an inference procedure for the study.

b) Suppose this study is to be conducted using a matched-pairs design. Describe a randomization process and identify an inference procedure for the study.

c) Which of the designs, the one in part (a) or the one in part (b), is better for testing the effectiveness of the new compound versus that of the current compound? Justify your answer.

Please help me with a) b) and c)

In: Statistics and Probability

How does the establishment and use of an effective incentive program for managers align with the...

How does the establishment and use of an effective incentive program for managers align with the Auburn Creed? (I believe that this is a practical world and that I can count only on what I earn. Therefore, I believe in work, hard work. I believe in education, which gives me the knowledge to work wisely and trains my mind and my hands to work skillfully. I believe in honesty and truthfulness, without which I cannot win the respect and confidence of my fellow men. I believe in a sound mind, in a sound body and a spirit that is not afraid, and in clean sports that develop these qualities. I believe in obedience to law because it protects the rights of all. I believe in the human touch, which cultivates sympathy with my fellow men and mutual helpfulness and brings happiness for all. I believe in my Country, because it is a land of freedom and because it is my own home, and that I can best serve that country by "doing justly, loving mercy, and walking humbly with my God." And because Auburn men and women believe in these things, I believe in Auburn and love it.) Address the question using appropriate grammar and punctuation and successfully connect the Auburn creed tenets to course concepts.

In: Accounting