Results 1 to 10 of about 129,610 (165)
Research Progress on Spatiotemporal Distribution Characteristics of Carbon Stable Isotopes in Wines from New and Old World Countries [PDF]
With the continuous development of economic globalization, the production and consumption of wine in New and Old World countries have shown a steady growth trend. Wines of different grades and styles have been developed, which are related to geographical
MA Yanfei, SU Yingyue, WANG Lishan, QI Pengyu, KANG Tianhao, WANG Li, MA Haiyan, XU Guoqian, ZHANG Ang
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Degradation changes stable carbon isotope depth profiles in palsa peatlands [PDF]
Palsa peatlands are a significant carbon pool in the global carbon cycle and are projected to change by global warming due to accelerated permafrost thaw. Our aim was to use stable carbon isotopes as indicators of palsa degradation.
J. P. Krüger, J. Leifeld, C. Alewell
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Isotopic Fingerprinting: A Promising Tool for Coffee Authenticity Checks
Almost every physical or chemical process in nature favors certain light stable isotopes over others, and thereby leaves an isotopic “fingerprint” on the substances involved.
Johannes Wintel +4 more
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Sedimentary pyrite sulfur isotopes track the local dynamics of the Peruvian oxygen minimum zone
To explore the importance of local vs. global sulfur-cycle controls on variations in pyrite sulfur isotopes, the authors couple carbon-nitrogen-sulfur concentrations and stable isotopes of sediments from the Peruvian oxygen minimum zone, identifying a ...
Virgil Pasquier +2 more
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Tracing the flow of dietary energy sources, especially in systems with a high degree of omnivory, is an ongoing challenge in ecology. In aquatic systems, one of the persistent challenges is in differentiating between autochthonous and allochthonous ...
Ariana M. Chiapella +2 more
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BACKGROUND Organic carbon and nitrogen stable isotopes (δ13C, δ15N) in marine sediments are used as effective indicators to trace the changes of air, temperature, precipitation and other parameters in different geological time. Elemental analysis-isotope
CHANG Wen-bo +3 more
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Contemporary methods used to predict isotopic variation at regional scales have yet to include underlying distributions of the abundance of isotopic substrates.
John L. Berini +6 more
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Zanadamu: An African hominin isotopic dataset
The present article introduces Zanadamu, a comprehensive geo-temporal-referenced dataset that amalgamates all published stable isotope carbon and oxygen measurements on tooth enamel from African hominins, dated between 4.4 and 0.005 Ma.
Victor Iminjili, Ricardo Fernandes
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Population-specific sex and size variation in long-term foraging ecology of belugas and narwhals [PDF]
Intraspecific variation in resource use by individuals of different age, sex or size may reflect differing energetic requirements and physiological constraints.
Marie Louis +5 more
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Seasonal Cyclicity in Trace Elements and Stable Isotopes of Modern Horse Enamel. [PDF]
The study of stable isotopes in fossil bioapatite has yielded useful results and has shown that bioapatites are able to faithfully record paleo-environmental and paleo-climatic parameters from archeological to geological timescales.
Niels J de Winter +2 more
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