Results 11 to 20 of about 499,001 (359)

Multidisciplinary lines of evidence reveal East/Northeast Asian origins of agriculturalist/pastoralist residents at a Han dynasty military outpost in ancient Xinjiang

Frontiers in Ecology and Evolution, 2022
Han/non-Han interactions were engrained among the border regions of ancient Imperial China. Yet, little is known about either the genetic origins or the lifeways of these border peoples.
Edward Allen, Yao Yu, Xiaomin Yang, Yiran Xu, Yiran Xu, Panxin Du, Jianxue Xiong, Dian Chen, Xiaohong Tian, Yong Wu, Xiaoli Qin, Pengfei Sheng, Pengfei Sheng, Pengfei Sheng, Chuan-Chao Wang, Chuan-Chao Wang, Chuan-Chao Wang, Chuan-Chao Wang, Shaoqing Wen, Shaoqing Wen, Shaoqing Wen   +20 more
doaj   +1 more source

High-precision measurements of seawater Pb isotope compositions by double spike thermal ionization mass spectrometry [PDF]

, 2014
A new method for the determination of seawater Pb isotope compositions and concentrations was developed, which combines and optimizes previously published protocols for the separation and isotopic analysis of this element.
Bridgestock, L, Paul, M, Rehkämper, M, van DeFlierdt, T, Weiss, D   +4 more
core   +2 more sources

Freezing and chemical preservatives alter the stable isotope values of carbon and nitrogen of the Asiatic clam (Corbicula fluminea) [PDF]

, 2011
We tested the impacts of most common sample preservation methods used for aquatic sample materials on the stable isotope ratios of carbon and nitrogen in clams, a typical baseline indicator organism for many aquatic food web studies utilising stable ...
Aurélia Martino, B Fry, B Kelly, BJ Peterson, CJ Sweeting, DM Post, Dorothée Kopp, Frédéric Santoul, H Feuchtmayr, HC Sarakinos, J Dannheim, J Syväranta, J Syväranta, Jari Syväranta, KL Bosley, LM Barrow, M Ventura, MM Mullin, MS Edwards, NO Ogawa, Régis Céréghino, S Carabel, S Kaehler   +22 more
core   +5 more sources

Energy Sources of the Depth-Generalist Mixotrophic Coral Stylophora pistillata

Frontiers in Marine Science, 2020
Energy sources of corals, ultimately sunlight and plankton availability, change dramatically from shallow to mesophotic (30–150 m) reefs. Depth-generalist corals, those that occupy both of these two distinct ecosystems, are adapted to cope with such ...
Stephane Martinez, Stephane Martinez, Yuval Kolodny, Yuval Kolodny, Eli Shemesh, Federica Scucchia, Federica Scucchia, Reinat Nevo, Smadar Levin-Zaidman, Yossi Paltiel, Yossi Paltiel, Nir Keren, Dan Tchernov, Dan Tchernov, Tali Mass, Tali Mass   +15 more
doaj   +1 more source

Trophic Niche Partitioning of Five Sciaenidae Species Sampled in Zhoushan Archipelago Waters via Stable Isotope Analysis

Frontiers in Marine Science, 2022
Sciaenid fishes are usually associated with large freshwater inputs and are the most important economic fish on the coastal shelf off mainland China.
Jing Wang, Jing Wang, Ri-Jin Jiang, Ri-Jin Jiang, Ri-Jin Jiang, Ri-Jin Jiang, Yi Xiao, Yi Xiao, Rui Yin, Feng Chen, Yong-dong Zhou, Han-Xiang Xu, Han-Xiang Xu   +12 more
doaj   +1 more source

Recent advances in the application of stable isotope ratio analysis in forensic chemistry [PDF]

, 2010
This review paper updates the previous literature in relation to the continued and developing use of stable isotope ratio analysis in samples which are relevant to forensic science.
Benson, Benson, Benson, Bernstein, Besacier, Billault, Bowen, Brenna, Buchanan, Carter, Carter, Casale, de Korompay, Desage, Ehleringer, Ehleringer, Farmer, Farmer, Fraser, Fraser, Hilary A. S. Buchanan, James G. Fraser, Kathleen A. Savage, Kelly, Kurashima, Lock, Mas, Meier-Augenstein, Meier-Augenstein, Meier-Augenstein, Niamh Nic Daeid, Nissenbaum, Palhol, Pierrini, Podlesak, Quirk, Sarah L. Cresswell, Shibuya, Taylor, van Es, Widory   +40 more
core   +1 more source

Stable isotope analysis of human hair and nail samples: the effects of storage on samples [PDF]

, 2008
When submitting samples for analysis, maintaining sample integrity is essential. Appropriate packaging must be used to prevent damage, contamination or loss of sample.
Fraser, Isla, Kalin, Robert M., Meier-Augenstein, Wolfram   +2 more
core   +1 more source

Revisited digestion methods for trace element analysis in human hair

Journal of Analytical Science and Technology, 2019
Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no ...
Woo-Jin Shin, Minkyoung Jung, Jong-Sik Ryu, Jihwan Hwang, Kwang-Sik Lee   +4 more
doaj   +1 more source

Uranium Isotopic Analysis with the FRAM Isotopic Analysis Code [PDF]

, 1999
FRAM is the acronym for Fixed-energy Response-function Analysis with Multiple efficiency. This software was developed at Los Alamos National Laboratory originally for plutonium isotopic analysis. Later, it was adapted for uranium isotopic analysis in addition to plutonium.
Vo, Duc T., Sampson, Thomas E.
openaire   +2 more sources

DIETARY STRATEGIES OF NORTHERN SELKUPS IN THE 18th–19th CENTURIES

Вестник археологии, антропологии и этнографии, 2019
The article considers the dietary habits of a small Selkup group that lived in the north of Western Siberia along the upper reaches of the Taz River in the18th–19th centuries.
O.E. Poshekhonova, D.I. Razhev, S.M. Slepchenko, Z.V. Marchenko, V.N. Adaev   +4 more
doaj   +1 more source