Results 81 to 90 of about 95,822 (213)

Integrating isotopes and documentary evidence : dietary patterns in a late medieval and early modern mining community, Sweden [PDF]

open access: yes, 2017
We would like to thank the Archaeological Research Laboratory, Stockholm University, Sweden and the Tandem Laboratory (Ångström Laboratory), Uppsala University, Sweden, for undertaking the analyses of stable nitrogen and carbon isotopes in both human and
A Bogaard   +94 more
core   +1 more source

Complexities of Nitrogen Isotope Biogeochemistry in Plant-Soil Systems: Implications for the Study of Ancient Agricultural and Animal Management Practices

open access: yesFrontiers in Plant Science, 2014
Nitrogen isotopic studies have potential to shed light on the structure of ancient ecosystems, agropastoral regimes, and human-environment interactions.
Paul eSzpak
doaj   +1 more source

Factors influencing the stable carbon isotopic composition of suspended and sinking organic matter in the coastal Antarctic sea ice environment [PDF]

open access: yes, 2011
A high resolution time-series analysis of stable carbon isotopic signatures in particulate organic carbon (&delta;<sup>13</sup>C<sub>POC</sub>) and associated biogeochemical parameters in sea ice and surface waters provides an
Annett, A.L.   +9 more
core   +7 more sources

Intensification in pastoralist cereal use coincides with the expansion of trans-regional networks in the Eurasian Steppe

open access: yes, 2019
The pace of transmission of domesticated cereals, including millet from China as well as wheat and barley from southwest Asia, throughout the vast pastoralist landscapes of the Eurasian Steppe (ES) is unclear.
Makarewicz, C., Ventresca Miller, A.
core   +1 more source

Cultural diversity shaped neolithic subsistence in the Carpathian Basin

open access: yesScientific Reports
Stable carbon and nitrogen isotope analysis from archaeological human and animal bone collagen is a powerful tool to enlighten past socio-agricultural systems and their close links to environmental conditions.
M. L. C. Depaermentier   +3 more
doaj   +1 more source

Human pressures on two estuaries of the Iberian Peninsula are reflected in food web structure [PDF]

open access: yes, 2019
As a result of the increased urban and agricultural development in coastal environments, estuaries are among the most modified and threatened aquatic ecosystems.
Donázar Aramendía, Iñigo Javier   +5 more
core   +1 more source

Unravelling collembolan life belowground: Stoichiometry, metabolism and release of carbon and nitrogen [PDF]

open access: yes, 2007
This thesis investigated carbon and nitrogen dynamics of soil dwelling Collembola by using direct measurements and stable isotope additions. In an isotope change experiment, collembolans exchanged between 6 and 10% of carbon and nitrogen in their body ...
Larsen, Thomas
core  

Application of Stable Isotopes in Identifying the Sources and Formation of Sulfate and Nitrate in PM2.5: A Review

open access: yesAtmosphere
Sulfate and nitrate are important components of atmospheric PM2.5, which is the main contributor of haze. Therefore, studying the sources and formation mechanisms of atmospheric sulfate and nitrate is very important for the prevention and control of haze
Jiamei Peng   +5 more
doaj   +1 more source

Alimentation d’une population historique

open access: yesBulletins et Mémoires de la Société d’Anthropologie de Paris, 2003
Tooth wear, caries, and alveolar modifications provide the most common and most informative evidence regarding the nutritional condition of past populations.
Estelle Herrscher
doaj   +1 more source

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