Results 111 to 120 of about 410,858 (346)

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

, 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

Long-term carbon and nitrogen dynamics at SPRUCE revealed through stable isotopes in peat profiles [PDF]

, 2017
Peatlands encode information about past vegetation dynamics, climate, and microbial processes. Here, we used δ15N and δ13C patterns from 16 peat profiles to deduce how the biogeochemistry of the Marcell S1 forested bog in northern Minnesota responded to ...
Chen, Janet, Hanson, Paul J., Hobbie, Erik A., Hofmockel, Kirsten S., Iversen, Colleen M., McFarlane, Karis J., Thorp, Nathan R.   +6 more
core   +3 more sources

Nanoarchitectonics of Porous Carbons Templated by Inorganic Metal Oxides and Alkali Metal Salts for Energy and Environmental Applications

Advanced Science, EarlyView.
This review explores inorganic metal oxides and metal salt nanoparticles templated porous carbons, highlighting their synthesis, structural features, and performance in energy and environmental applications. It critically compares template types, porosity control, and functional outcomes across recent literature.
Gurwinder Singh, Jibi Kunjumon, Harleen Kaur, Narinder Singh, Gregory Franklin, Arpita Pandey Tiwari, Lukas Van Zweiten, John Kennedy, Ajayan Vinu   +8 more
wiley   +1 more source

Oxygen Isotope Analysis of Human Bone Phosphate Evidences Weaning Age in Archaeological Populations [PDF]

, 2015
Acknowledgements With special thanks to Jean-Jacques Hublin and the MPI-EVA; to Annabell Reiner (MPI-EVA) and Bernd Steinhilber (Universitat Tubingen) for technical support;and to the Deutscher Akademischer Austausch Dienst for financial support to KB ...
Alvarez, Ambrose, Anderson, Arifeen, Ayliffe, Ayliffe, Balasse, Balasse, Balasse, Balasse, Beaumont, Beresford, Bernard, Blaise, Brettell, Britton, Bryant, Bryant, Bryant, Bryant, Budd, Butte, Camin, Chenery, Clark, D'Angela, Dansgaard, Darling, Darling, Daux, Delgado Huertas, Dettman, Dettwyler, Dettwyler, Duijts, Eckardt, Ehleringer, Epstein, Evans, Evans, Evans, Evans, Fildes, Fogel, France, Fricke, Fricke, Fuller, Fuller, Fuller, Fuller, Fuller, Garn, Gat, Genoni, Gustafson, Halas, Hauber, Heller, Hoppe, Hoppe, Horta, Horta, Huelsemann, Iacumin, Jay, Jenkins, Kennedy, Kennedy, Klinken, Koch, Kohn, Kohn, Kohn, Kohn, Kolodny, Land, Levesque, Levin, Levinson, Lin, Longinelli, Longinelli, Longinelli, Longinelli, Longinelli, Longinelli, Luz, Mannino, Martin, Mays, Mays, Mays, Mekota, Montgomery, Müldner, Müldner, Nelson, Nielsen-Marsh, O'Neil, Pellegrini, Pellegrini, Podlesak, Polischuk, Pollard, Quinn, Reitsema, Rich-Edwards, Richards, Sellen, Sellen, Sharp, Sofaer Derevenski, Stuart-Williams, Sánchez Chillón, Tsutaya, Turner-Walker, Tütken, Tütken, Vennemann, Vitzthum, White, White, Widory, Wright, Wright, Yurtsever, Zanconato, Zazzo, Zazzo   +129 more
core   +1 more source

Global Nitrogen Deposition Promotes Carbon Sink Formation in Terrestrial Ecosystems

Advanced Science, EarlyView.
Nitrogen deposition alleviates ecosystem N limitation and enhances carbon sinks. Using 829 observations, we show 36% of deposited N is retained globally (39.15 Tg N yr−1), with distinct NHx and NOy contributions. This retention drives a terrestrial C sink of 0.88 Pg C yr−1 (25.48%), highlighting the importance of pool‐specific C:N stoichiometry ...
Lei Li, Mingyu Xie, Nan Jia, Li‐Dong Mo, Qiang Yu, Fanjiang Zeng, Xiangyi Li   +6 more
wiley   +1 more source

Stable Isotopes in Greenhouse Gases from Soil: A Review of Theory and Application

Atmosphere, 2019
Greenhouse gases emitted from soil play a crucial role in the atmospheric environment and global climate change. The theory and technique of detecting stable isotopes in the atmosphere has been widely used to an investigate greenhouse gases from soil. In
Xiao-cong Zhu, Dong-rui Di, Ming-guo Ma, Wei-yu Shi   +3 more
doaj   +1 more source

Differences in Ratio of Carbon Stable Isotopes among Barley Grain Milling Fractions with Various Concentrations of Beta-Glucans. [PDF]

Molecules, 2023
Levanič T, Cigić B, Germ M, Polišenská I, Vaculová K, Pravst I, Kocjan Ačko D, Kreft I.   +7 more
europepmc   +1 more source

Paleoamerican diet, migration and morphology in Brazil [PDF]

, 2011
During the early Holocene two main paleoamerican cultures thrived in Brazil: the Tradição Nordeste in the semi-desertic Sertão and the Tradição Itaparica in the high plains of the Planalto Central.
Eggers, Sabine, Grupe, Gisela, Parks, Maria, Reinhard, Karl J.   +3 more
core   +1 more source

Disruption of Treg Homeostasis in Rheumatoid Arthritis via Ferroptosis‐Mediated ETC Collapse and TXK‐STAT3/PLCγ1 Activation

Advanced Science, EarlyView.
In rheumatoid arthritis, synovial Tregs accumulate but are functionally impaired due to iron overload‐induced ferroptosis. This triggers mitochondrial dysfunction and TXK tyrosine kinase‐mediated signaling, leading to Treg destabilization and inflammation.
Jingrong Chen, Xiao Guan, Kexu Xiong, Xiaoyi Shi, Luyao Wu, Chuanxin Su, Jun Zhao, Rongzhen Liang, Huimin Wang, Junlong Dang, Ye Chen, Yiding Xiong, Chi Zhou, Futao Zhao, Zhenhang Zhu, Xiaoli Fan, Li Zhou, Nancy Olsen, Yutong Jiang, Song Guo Zheng   +19 more
wiley   +1 more source

Mass-spectrometric study on 13C/12C carbon and 18O/16O oxygen stable isotopes distributions in grapes and wines from the Black Sea regions

BIO Web of Conferences, 2019
The present study continues the 2015–2016 research project on biological characteristics of stable isotopes fractionation in grapes taking into account the agro-climatic growth conditions of this representative of the C3-pathway of photosynthesis group ...
Kolesnov A., Zenina M., Tsimbalaev S., Tereshenko G., Torshina L., Anikina N., Gnilomedova N., Gerzhikova V., Egorov E., Guguchkina T., Prakh A., Antonenko M.   +11 more
doaj   +1 more source