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1. Compute the mean energy per nuclear disintegration, A, for 99mTC if 2.0 x 109 Bq of this isotope is injected into a patient. Assume that one-half of the administered dose is taken up by the thyroid and that the removal kinetics follow first-order exponential form with a biological half-life of 4 h. What is the dose to the thyroid? Assume for purposes of this problem that the specific absorbed fraction is 0.5 and the thyroid weighs 80 g. Express the dose in gray.
DEVELOPMENT OF GENETICS-A HISTORICAL PERSPECT As systematic study of genetics began, answers were sought to questions such as i) why are we like our parents? ii) why do org
Q. Reduction in left ventricular? Vasodilators improve stroke volume, and reduce degree of regurgitation. This results from decrease in systemic vascular resistance and leads t
What is the approximate pH of the salivary secretion? Is it an acid or basic fluid? What are the main functions of saliva? The saliva pH is approximately 6.8. It is therefore a
Difference between other eukaryotic cells ? Cell Wall : In addition to the presence of photosynthetic plastids, another significant difference between other eukaryotic cell
The major factor which controls glycogen metabolism in the liver is the concentration of phorphorylase alpha. Certainly, this enzyme catalyzes the limiting step of glycogen breakdo
is the have 100 nuclus ?
Caruncle - Seed Appendages This is a white, collar-like structure borne on the micropylar end of the seed in many members of the Euphorbiaceae, such as castor, Ricinus communi
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Define Lipids - Tests for Presence of Exoenzymatic Activity? Lipids are also high molecular weight compounds. Enzyme lipases (esterases) cleaves the ester bond to form glycerol
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