Radiation from the head is a major source of heat loss from the human body. Model a head as a 21-cm-diameter, 20-cm-tall cylinder with a flat top.

If the body's surface temperature is 36?C , what is the net rate of heat loss on a chilly 9?C  day? All skin, regardless of color, is effectively black in the infrared where the radiation occurs, so use an emissivity of 0.95.

I have worked it through three times with other written solutions however i cannot arrive at the correct answer. A final answer as well as a solution would be appreciated! Thanks!

35.

The chromosomes in eukaryotic cells are composed by structures called nucleosomes (?beads on a string?) which contribute to the chromosomal highly condensed nature. Find the incorrect statement.

36.

1. You have a segment of DNA that contains the following sequence:

   5'-GGACTAGACAATAGGGACCTAGAGATTCCGAAA-3'
   3'-CCTGATCTGTTATCCCTGGATCTCTAAGGCTTT-5'

   If you know that the RNA transcribed from this segment contains the following sequence:

   5'-GGACUAGACAAUAGGGACCUAGAGAUUCCGAAA-3'

   Which of the following choices best describes how transcription occurs?

   	A.	The bottom strand is the template strand; RNA polymerase moves along this strand from 3' to 5'.
   	B.	The bottom strand is the template strand; RNA polymerase moves along this strand from 5' to 3'.
   	C.	The top strand is the template strand; RNA polymerase moves along this strand from 5' to 3'.
   	D.	The top strand is the template strand; RNA polymerase moves along this strand from 3' to 5'.

38.

1. The codon for methionine is AUG. Which is the anticodon in tRNA^Met?

   	A.	5'-ATG-3'
   	B.	5'-AUG-3'
   	C.	5'-CAU-3'
   	D.	5'-CAT-3'

39.

1. Telomeres serve as caps at the ends of linear chromosomes. Which of the following is not true regarding the replication of telomeric sequences?

   	A.	The leading strand doubles back on itself to form a primer for the lagging strand.
   	B.	The lagging strand telomeres are not completely replicated by DNA polymerase.
   	C.	Telomeres are made of repeating sequences.
   	D.	Additional repeated sequences are added to the template strand.

41.

Which of the following statements is false?

42.

1. The following is correct regarding integral proteins:

   	A.	They are embedded in the membrane and if they extend through the lipid bilayer they are called transmembrane proteins.
   	B.	They are also called intrinsic.
   	C.	They can be extracted from the membrane if the cells are treated with detergents.
   	D.	All of these

Technology that performs at the level of superhuman intelligence and beyond already exists. As Harris explained, even with a machine that performs at the level of humans or a group of researchers, it’ll still work exponentially faster than them. Harris says, describing a machine like that, that “in one week, it can perform 20,000 years of human-level intellectual work.” So of course, it’ll be convenient and amazing to have artificial intelligence find the cure to disease and find the answers to a question almost instantaneously compared to a group of researchers who may take months to do so, but when does AI reach the point where it’s so smart, that it’ll have no problem disregarding human’s lives to do what it wants to do?

Within the first two minutes of Sam Harris’ TED Talk on artificial intelligence, I was reminded of many of the episodes in Black Mirror where advanced technology in which we can currently only dream of becomes abused and causes chaos. Technology is constantly becoming more advanced, efficient, and intelligent. Undoubtedly, artificial intelligence will one day become so intelligent, it’ll have the ability to function independently of a human’s control. Without regulation, one day robot’s will start fixing all our economic issues and research questions. Human will be almost or basically useless and free to roam the earth doing whatever, just depending on robot’s to keep the world spinning. And what will stop robots from viewing us as “ants” and not hesitating to take us out if we are in their way? I agree that technology has brought us very far and I do think it should continue advancing whether it is to cure Alzheimers or just make our daily life more convenient, but when does AI become dangerously advanced? How do we decide when AI will threaten the human species? When do we decide to put a stop to it?

2. (i) What factors must be considered to provide a safe and healthful workplace for the workers (R)?

Or What are the major factors affecting fatigue of the operator (R)?

(ii) What are the opportunities for savings through the application of methods engineering and work measurement (R)?

(iii) In the conduct of operations analysis, explain the importance of the (1) process of manufacture, and (2) set-up and tools (R).

(iii) State the basic principles of motion economy for the “use of the human body” (R).

(iv) State the body members involved in the five classifications of movements. Explain the concept that all motions should be made at the lowest classification of movements (R). Explain difference between the flow process chart and the flow diagram?

(v) State briefly the macroscopic approaches to making improvements in the workplace (R).

Or What are the macroscopic approaches to making improvements in the work place with particular reference to: (a) physical environment, (b) physiological factors, (c) physiological factors, and (d) sociological factors?

(vi) State the manner by which the principle of motion economy can be employed in the design of tools and equipment (R).

(vii) Explain the role of methods analyst in providing a good working condition? Do working conditions appreciably affect output (R)?

Or Why should the method analyst accept as a part of his or her responsibility to provide good working condition to the operators? Do working conditions appreciably affect output? Explain (R).

(viii) What are the main uses of human machine chart? Show the basic features human machine chart, including summary form of such a chart (R).

(ix) What are the common considerations for improving working conditions? State the benefits of ideal working conditions (R)?

(x) Show the proper flow process chart symbols for the following processes: (a) move material by truck, (b) raw material in bulk storage, (c) examine material for quality, (d) material in truck waiting to be processed, and (e) mix material to proper consistency.

Individual Problems 5-1

George's T-Shirt Shop produces 8,000 custom-printed T-shirts per month. George's fixed costs are $24,000 per month. The marginal cost per T-shirt is a constant $9.

George's break-even price is _______ per shirt.

Suppose George sells 50% more T-shirts per month.

At this quantity of shirts, George's break-even price is _______ per shirt.

Individual Problems 5-2

Suppose an initial investment of $80 will return $30/year for three years (assume the $30 is received each year at the end of the year).

At a discount rate of 25%, this investment ________ profitable.

Individual Problems 5-3

Perhaps the most important kind of capital is human capital. For example, most lawyers spend years learning to practice law. Lawyers are willing to make large investments in their human capital because they expect to be compensated for doing so when they begin work. Suppose the government nationalizes the market for legal services, resulting in lower compensation for lawyers. Assume lawyers cannot easily move to other countries.

True or False: The investment in human capital for lawyers is subject to post-investment hold-up.

True

False

Individual Problems 5-5

Last year, a toy manufacturer introduced a new toy truck that was a huge success. The company invested $2.50 million in a plastic injection molding machine (which can be sold for $2 million immediately) and $200,000 in plastic injection molds specifically for the toy (not valuable to anyone else). The cost of labor and materials necessary to make each truck runs about $4. This year, a competitor has developed a similar toy, significantly reducing demand for the toy truck. Now, the original manufacturer is deciding whether it should continue production of the toy truck.

If the estimated demand is 100,000 trucks, the break-even price is _______ per truck.

Please write down your response after reading the paragraph. (At least 5 sentences long. 150-200 words)

The idea of a driverless car in our modern day and age at first sounds very pleasant, if one does not think too hard about it. Much like how Iyad Rahwan mentions in his TED talk, about 1.6 million people die every year in traffic accidents, and oftentimes because of human error. If human error was taken away, wouldn’t this drastically decrease the number of accidents occurring? However, there are many ethical dilemmas that one must consider: should you allow your car to decide that it should kill you if it were to save five pedestrians as a result? There are an infinite number of factors that could change your answer immediately: what if you were driving with a family member or your significant other on the passenger seat? What if swerving meant running into an unsuspecting mother with a baby carriage? Like Rahwan mentioned, would society even allow driverless cars with such risks, however small? With everyone having different opinions on the risks they’re willing to take, I believe society as a whole will never be able to come to a complete consensus on such a matter. However, I do think that most would avoid driverless cars as a result to avoid such a situation.

Personally, I believe in Bentham’s view of the situation; minimizing harm by choosing to kill one life over five others. However, Kant’s belief that you should allow the car to take its course is also a very valid argument. Who are we to choose who lives and who dies in a society in which one believes every human being is created equal? In addition, if one of my family members was with me in the car, and crashing would put their lives at risk, would I be willing to make that sacrifice just to save five people that I don’t know? As such, this is a very difficult ethical dilemma to consider.

6. The p53 tumor suppressor gene was isolated from a tumor where p53 protein levels were very high. This was likely due to dominant-acting mutant that inactivated all p53 tetramers and blocked the tumor suppressing effects of wild type p53. A) True B) False

7. Increased gene expression from the Ink4A locus leads to inhibition of cyclin E-CDK2. A) True B) False

8. In colon cancer progression, the first driver mutation is commonly a mutation to the KRas gene. A) True B) False

9. Metabolic reprogramming in KRas-driven cancer cells involves glutaminolysis whereby glutamine is deamidated by glutaminase to glutamate, which is then deaminated by glutamate dehydrogenase to -ketoglutarate and NH4+. -ketoglutarate can then continue through the TCA cycle to citrate and exit the mitochondria where acetyl-CoA is regenerated for fatty acid synthesis. A) True B) False

10. 2-hydroxy-glutarate (2-HD) made by mutant TCA cycle enzyme isocitrate dehydrogenase (IDH) was considered an ”oncometabolite” because it prevented VHL ubiquitination of HIF. A) True B) False

Sanger sequencing uses dideoxyribonucleotides because

a)They prevent the incorporation of subsequent DNA nucleotides

b)DNA polymerase will not utilize them during replication

c)They work more efficiently at high temperatures

question2

Which of the following is a palindromic sequence capable of being recognized by a restriction enzyme?

Group of answer choices

a)5’- ATGGTA -3’

b.5’- GCTAGC -3’

c.5’- CGCGAG -3’

d.5’- TACGAT -3’

question 3

What is the main difference between benign and malignant tumors?

Group of answer choices

a.Benign tumors can metastasize, while malignant tumors cannot

b.Malignant tumors can metastasize, while benign tumors cannot

c.Both benign and malignant tumors behave identically

question 4

In order to cause phenotypic change at a cellular level, only 1 allele of a tumor supressor gene needs to be inactivated

Group of answer choices

True

False

Benign tumors are caused by DNA mutation, while malignant tumors are not

Malignant tumors are caused by DNA mutation, while benign tumors are not

The inflammation of a tendon or its attachment point due to overuse of the muscle is known as ______. A compound which accumulates in muscle fibers where it stores energy that can be used to synthesize ATP is known as ______. Skeletal muscle fibers develop from cells called ______. The ilopsoas muscle, a combination of the iliacus and psoas major muscles, are important because they function as ______. The enzyme which removes and recycles the neurotransmitter from the receptors of Na+ gated ion channels on the sarcolemma is ______. The gastrocnemius joins with two other muscles, ______ and ______, to from the calcaneal (Achilles) tendon. Chemicals which cause production of action potentials in the post-synaptic membrane are called ______. A condition in which stimuli occur so rapidly as to not allow any relaxation between muscle contractions is called ______. The progressive genetic disease where muscle tissue is replaced with fibrous connective tissue is known as ______. Opposition by the thumb is accomplished by contraction of the ______ muscle. A strong band of fibrous connective tissue which covers the flexor and extensor tendons of the wrist and holds them in place is the ______. An age-associated, progressive degeneration of skeletal muscle is known as ______.