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Shin, J.Y.,Hedges, R.E.M. Academic Press 2012 Journal of archaeological science Vol.39 No.4
This paper presents a new approach to the isotopic measurement of diagenetically altered archaeological bone apatite carbonate. We describe how the existing differential dissolution method may be combined with a new approach to remove diagenetically reformed material on the basis of its greater specific gravity. We show that heavier, more diagenetically altered fraction has a higher (altered) δ<SUP>13</SUP>C and also increased crystallinity within one individual. In addition, we proposed one potential tool to check the validity of bone carbonate by comparing bone collagen, enamel carbonate and bone carbonate values of δ<SUP>13</SUP>C and radiocarbon content from the same individual. In the case of Danebury cattle, we estimated the biogenic δ<SUP>13</SUP>C<SUB>apa</SUB> value for DC83 and DC89, although it is still difficult to overcome diagenesis in order to meet the expected value, which is shown to be 1.9%% (DC83) and 3.5%% (DC89).
Wu, Yiyan,Zhao, Zhenglin,Yang, Yupeng,Yang, Xudong,Jang, Eun Young,Schilaty, Nathan D,Hedges, David M,Kim, Sang Chan,Cho, Il Je,Zhao, Rongjie Chinese Medical Assn 2014 Chinese medical journal : CMJ Vol.127 No.10
<P>We previously demonstrated that the aqueous extract of the Schizandra chinensis fruit (AESC) ameliorated Cd-induced depletion of monoamine neurotransmitters in the brain through antioxidant activity. In the present study, we investigated the effect of AESC on anxiety-like behavior and the levels of norepinephrine and 3-methoxy-4-hydroxy-phenylglycol (a metabolite of norepinephrine) in different brain regions during ethanol withdrawal in rats.</P>