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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.
Analysis of Genomic Equivalence of Nuclei Towards the ending of 19th century August Weismann had proposed that during cleavage the genetic determinants (later shown to be chro
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Photosynthesis Two main energy pathways are recognised in living systems. These are photosynthesis and cellular respiration. Both have their respective but different electron
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main external morphological feature that differentiates platyhelminthes from nematodes
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