考古学
发表于 2025-3-25 06:34:29
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车床
发表于 2025-3-25 09:47:46
https://doi.org/10.1007/978-1-349-09414-1enous synthesis of neAAs. Some natural populations of humans with lower protein intakes may not experience this inhibition, leading to more endogenous neAA synthesis from carbohydrate and lipid carbon sources, approaching linear mixing. This is suggested by high .C values in some .-consuming populat
Heart-Rate
发表于 2025-3-25 13:14:21
Specimen Passage and Commentary,hown that large isotopic discrimination during methano-genesis in ruminants may account for data trends when comparing herbivores and carnivores. A third class of model is sketched at the level of biochemical flows, where some fundamental points are made concerning points where the isotopic composit
带来
发表于 2025-3-25 17:44:06
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护航舰
发表于 2025-3-25 23:58:40
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Physiatrist
发表于 2025-3-26 02:51:40
Modeling Protein Diagenesis in Ancient Bone: Towards a Validation of Stable Isotope Data, consumption, an overall enrichment of . in the range of a trophic level effect was detected. A metho for an estimation of . . values in collagen is suggested by correction of diagenetically altered amino acid profiles. Since a shift in . should largely be the result of peptide bond cleaving, no such estimations are possible.
Brochure
发表于 2025-3-26 05:42:15
Bone Chemistry, Food and History: A Case Study from 19th Century Upper Canada,n the 19. century. Stable isotopes of carbon were analyzed in preserved bone collagen and in foods. Foods were prepared following recipes in historical documents and using traditional cookware. Raw ingredients and finished baked goods and stew were analyzed. Results indicate small differences in . b
详细目录
发表于 2025-3-26 11:26:03
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orient
发表于 2025-3-26 15:24:29
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Nonconformist
发表于 2025-3-26 19:35:35
Preservation of Isotopic Signals (13C, 15N)_in Pleistocene Mammals,n of these biogenic isotopic signals are characteristic of modern mammals, and their recognition in fossil samples provides a clue for the preservation of biogenic paleodietary signals..In C. plant food webs, the . values of collagen are slightly enriched in carnivores (~−20‰) relative to herbivores