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Continuous indoor fluorescent light benefits the health of

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Senior Manager
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Continuous indoor fluorescent light benefits the health of [#permalink] New post 20 May 2008, 18:05
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E

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Continuous indoor fluorescent light benefits the health of hamsters with inherited heart disease. A group of them exposed to continuous fluorescent light survived twenty-five percent longer than a similar group exposed instead to equal periods of indoor fluorescent light and of darkness.
The method of the research described above is most likely to be applicable in addressing which of the following questions?
(A) Can industrial workers who need to see their work do so better by sunlight or by fluorescent light?
(B) Can hospital lighting be improved to promote the recovery of patients?
(C) How do deep-sea fish survive in total darkness?
(D) What are the inherited illnesses to which hamsters are subject?
(E) Are there plants that require specific periods of darkness in order to bloom?

Guys please post answers with expl.
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Re: CR-Research Method. [#permalink] New post 20 May 2008, 19:05
The answer is B - since studies with hamsters with heart disease showed that on exposure to fluorescent light helped them survive 25% longer - so it could help the patients in the hospital. After all, hamsters are usually used as guinea pigs for studies to help humans
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Re: CR-Research Method. [#permalink] New post 20 May 2008, 19:11
tharunv wrote:
After all, hamsters are usually used as guinea pigs for studies to help humans


So why don't they use guinea pigs instead of hamsters.
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Re: CR-Research Method. [#permalink] New post 25 May 2008, 19:29
E for me.

The questions asks for how could this "method of research" help.

Method of research implies --> darkness + light v/s continuous light. To me the only thing that this method can help address is E - are there plants that require specific periods of darkness in order to bloom.

What's the OA ?

marshpa wrote:
Continuous indoor fluorescent light benefits the health of hamsters with inherited heart disease. A group of them exposed to continuous fluorescent light survived twenty-five percent longer than a similar group exposed instead to equal periods of indoor fluorescent light and of darkness.

The method of the research described above is most likely to be applicable in addressing which of the following questions?
(A) Can industrial workers who need to see their work do so better by sunlight or by fluorescent light?
(B) Can hospital lighting be improved to promote the recovery of patients?
(C) How do deep-sea fish survive in total darkness?
(D) What are the inherited illnesses to which hamsters are subject?
(E) Are there plants that require specific periods of darkness in order to bloom?

Guys please post answers with expl.
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Re: CR-Research Method. [#permalink] New post 26 May 2008, 03:04
It is B for me!!
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Re: CR-Research Method. [#permalink] New post 26 May 2008, 17:24
marshpa wrote:
Continuous indoor fluorescent light benefits the health of hamsters with inherited heart disease. A group of them exposed to continuous fluorescent light survived twenty-five percent longer than a similar group exposed instead to equal periods of indoor fluorescent light and of darkness.
The method of the research described above is most likely to be applicable in addressing which of the following questions?
(A) Can industrial workers who need to see their work do so better by sunlight or by fluorescent light? - The research is not about visibility
(B) Can hospital lighting be improved to promote the recovery of patients? - Most likely answer, since the study was about hamsters having inherited heart disease.
(C) How do deep-sea fish survive in total darkness? - Not applicable
(D) What are the inherited illnesses to which hamsters are subject? - Not applicable
(E) Are there plants that require specific periods of darkness in order to bloom? - Not applicable

Guys please post answers with expl.
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Re: CR-Research Method. [#permalink] New post 27 May 2008, 09:49
bsd_lover wrote:
E for me.

The questions asks for how could this "method of research" help.

Method of research implies --> darkness + light v/s continuous light. To me the only thing that this method can help address is E - are there plants that require specific periods of darkness in order to bloom.

What's the OA ?

marshpa wrote:
Continuous indoor fluorescent light benefits the health of hamsters with inherited heart disease. A group of them exposed to continuous fluorescent light survived twenty-five percent longer than a similar group exposed instead to equal periods of indoor fluorescent light and of darkness.

The method of the research described above is most likely to be applicable in addressing which of the following questions?
(A) Can industrial workers who need to see their work do so better by sunlight or by fluorescent light?
(B) Can hospital lighting be improved to promote the recovery of patients?
(C) How do deep-sea fish survive in total darkness?
(D) What are the inherited illnesses to which hamsters are subject?
(E) Are there plants that require specific periods of darkness in order to bloom?

Guys please post answers with expl.


The stem talks about the effect of fl. light on survival rates of hamsters with heart disease.
It seeks to establish that keeping hamsters in continous fl. light increased the chances of survival with respect to hamsters who were exposed intermittently.

The link with plants is not directly relevant - the plants for one can't have heart disease.

Could you be a little more elaborate in your reasoning?
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Re: CR-Research Method. [#permalink] New post 27 May 2008, 10:46
B
The paragraph shows the effect of exposure to fluorescent light can improve health of mammal. Thus it can be used to address questions such as B. And mouse is genetically close to humans!
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Re: CR-Research Method. [#permalink] New post 27 May 2008, 12:48
marshpa wrote:
Continuous indoor fluorescent light benefits the health of hamsters with inherited heart disease. A group of them exposed to continuous fluorescent light survived twenty-five percent longer than a similar group exposed instead to equal periods of indoor fluorescent light and of darkness.
The method of the research described above is most likely to be applicable in addressing which of the following questions?
lets try to deduce what this method of research is before we look at the answer choices.

- A sample of hamsters is taken.
- Sample split into two groups (lets call them A and B)
- A exposed to continuous fluoroscent light, B exposed to periodic light/darkness
- One group showed different results to another.

Lets see if we can find a similar experiment method form the below choices.


(A) Can industrial workers who need to see their work do so better by sunlight or by fluorescent light?
different sort of light sources, not similar to our method
(B) Can hospital lighting be improved to promote the recovery of patients? quality of light sources, not similar
(C) How do deep-sea fish survive in total darkness? no light, definitely not similar
(D) What are the inherited illnesses to which hamsters are subject? how can a better survival rate tell researches what the illnesses are?? irrelevant, since we are asked about the light/dark experiment method
(E) Are there plants that require specific periods of darkness in order to bloom? bingo!, here we have a light/dark scenario. We can transplant the same experiement on these plants to figure out this answer to this question..

Guys please post answers with expl.
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Re: CR-Research Method. [#permalink] New post 27 May 2008, 16:17
B for as well.

E.
Flurocent light help is improving help hamster. Hamsters who were exposed to light were more healthy than those who did not get continuous light. I dont see where E (plants requiring specific periods of darkness in order to bloom) fits into that.
Re: CR-Research Method.   [#permalink] 27 May 2008, 16:17
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