Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Lv 729,044 points

climberguy12

Favorite Answers41%
Answers4,131

i climb and answer science/math questions. all you need to know.

  • dopamine pump for parkinson's?

    So i have been researching parkinson's disease lately, and at the different therapies. parkinson's is caused by death of cells that make dopamine in the brain. since you can't take dopamine orally because of the BBB, i was thinking an obvious solution would be a dopamine drug pump across the BBB. i know they have done drug pumps in the brain before so it would be possible to make a device, and it seems like it would treat the disease well. it would be pretty invasive, but people with parkinson's already get things like deep brain stimulation and ablation. i could find nothing online about why this wouldnt work, or even if it had been tried before. anybody know anything?

    2 AnswersMedicine9 years ago
  • Simplify into first power of cosine: cos^2(x)*sin^4(x)?

    I had this question in a tutoring session, and i couldnt figure it out.

    2 AnswersMathematics9 years ago
  • political question about republicans?

    is there any evidence for republican claims that reducing taxes will create more jobs? i have heard is that the job creators having more money will allow them to hire more people. thats more of a hypothesis... is there any data?

    8 AnswersPolitics9 years ago
  • rollercoaster tycoon gold on windows 7?

    so i have been trying to install rollercoaster tycoon gold on windows 7. its a 2 disc set. one with the original game, one with the expansion packs. i got the first one to work (eventually) by adding it to a DEP exception list. when i tried to install the expansion packs, i get "setup.exe has stopped working" every time. its very frustrating. i have looked around the internets with no help. anybody know what to do?

    3 AnswersPC9 years ago
  • solve for y: a*ln(y)+y+b*x+c=0?

    is it possible? if so, how?

    1 AnswerMathematics1 decade ago
  • DNA microarrays identify specific DNA sequences by:?

    A. GFP-labeled fragments on the array bind with complementary DNA from the sample that

    has been broken into fragments

    B. Sample DNA is broken into fragments, and the double stranded DNA binds

    complementary GFP-labeled DNA sequences on the microarray

    C. Sample DNA is broken into fragments, strands are separated and labeled with GFP.

    These DNA molecules bind to identical DNA sequences on the microarray

    D. Sample DNA is broken into fragments, strands are separated and labeled with GFP, and

    these DNA molecules bind to complementary DNA sequences on the microarray.

    cant for the life of me figure this one out.

    3 AnswersBiology1 decade ago
  • for a typical association reaction x+y->xy, a larger value for equilibrium constant k indicates?

    a. stronger binding between x and y

    b. lower free energy change for the association

    c. lower rate of association of xy

    d. a and b

    e. all of the above.

    i know a is true, but not sure about the others.

    2 AnswersChemistry1 decade ago
  • Which of the following processes is not thought to contribute significantly to the evolution of new genes?

    A. shuffling of domains of genes by gene rearrangement

    B. mutation of existing genes to create new function(s)

    C. Horizontal transfer of DNA between cells of different species

    D. duplication of genes to create extra copies that can acquire new function

    E. formation of new genes de novo from noncoding DNA in genome

    1 AnswerBiology1 decade ago