Results 81 to 90 of about 130,756 (301)

Seasonal changes of stable isotope signals in the primary feathers of plains sharp‐tailed grouse

Wildlife Society Bulletin, 2023
Stable isotopes of a consumer organism can be used to estimate the proportional utilization of food items that have different isotopic signals to estimate changes in diet over time.
Sejer D. Meyhoff, Daniel L. Johnson, Benjamin H. Ellert, Katelyn Lutes   +3 more
doaj   +1 more source

Carbon isotope anomaly in the major plant C-1 pool and its global biogeochemical implications [PDF]

, 2004
We report that the most abundant C-1 units of terrestrial plants, the methoxyl groups of pectin and lignin, have a unique carbon isotope signature exceptionally depleted in C-13.
Hamilton, JTG, Harper, DB, Kalin, R., Keppler, F., McRoberts, WC   +4 more
core   +1 more source

Climate Change Threatens Micronutrient Density of European Winter Wheat

Advanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao, Jennifer Michel, Eline Lorer, Markus Weinmann, Jacques Le Gouis, Claire Léon, Sibille Perrochon, David Alvarez, Vincent Leemans, Iñaki Balanzategui Guijarro, Jordi Moya Laraño, Sara Sánchez Moreno, Symanczik Sarah, Waibel Matthias, Hervé Vanderschuren, Cécile Thonar, Pierre Delaplace, Dominique Van Der Straeten   +17 more
wiley   +1 more source

Significant carbon isotopic fractionation during early formation of biological soil crusts with indications for dryland carbon cycling

iScience
Summary: Clarifying the accumulation and decomposition of soil organic carbon (SOC) is crucial for comprehending carbon cycling in terrestrial ecosystems.
Li-Xuan Zhang, Bin Zhou, Bin Song, Cheng Zhao, Jonathan M. Adams, Zhiwei Xu   +5 more
doaj   +1 more source

Stable Isotope (δ13C, δ15N, δ18O, δD) Composition and Nutrient Concentration of Red Sea Primary Producers

Frontiers in Marine Science, 2018
Measurements of isotopic composition of marine primary producers are a valuable tool to follow and trace the source and cycling of organic matter in the marine systems, as well to describe the physiological status of aquatic photosynthetic organisms ...
Carlos M. Duarte, Antonio Delgado-Huertas, Andrea Anton, Paloma Carrillo-de-Albornoz, Daffne C. López-Sandoval, Susana Agustí, Hanan Almahasheer, Núria Marbá, Iris E. Hendriks, Dorte Krause-Jensen, Dorte Krause-Jensen, Neus Garcias-Bonet   +11 more
doaj   +1 more source

A Perspective on the Applications of Triphasic Gas Storage in Electrochemical Systems

Advanced Science, EarlyView.
Gas storage in microporous materials positioned locally at an electrode or electrocatalyst surface enhances electrochemical processes. Abstract Microporous materials store gases under dry conditions (e.g., hydrogen or oxygen via physisorption), but in some cases microporous materials also show triphasic (e.g., in a solid|gas|liquid system) gas storage ...
Zhongkai Li, Corin T. Scott, Taku Suzuki‐Osborne, John P. Lowe, Dominic Taylor, Mariolino Carta, Neil B. McKeown, Andrew D. Burrows, Lucia H. Mascaro, Frank Marken   +9 more
wiley   +1 more source

Biogeochemistry of stable carbon isotopes [PDF]

Biochemistry and geochemistry of stable carbon ...
Degens, E. T.
core   +1 more source

Proton capture cross section of Sr isotopes and their importance for nucleosynthesis of proton-rich nuclides [PDF]

, 2001
The (p,$\gamma$) cross sections of three stable Sr isotopes have been measured in the astrophysically relevant energy range. These reactions are important for the $p$-process in stellar nucleosynthesis and, in addition, the reaction cross sections in the
A. Heger, E. Somorjai, E. Somorjai, F. D. Becchetti, F. G. Perey, F. R. Chloupek, Gy. Gyürky, H. Schatz, H. Sievers, H. Sievers, H.-W. Müller, I. Borbély-Kiss, J. Bork, J. Holmes, J. M. Pearson, J. P. Jeukenne, M. Arnould, M. Arnould, M. Rayet, M. Rayet, P. Demetriou, P. Demetriou, P. E. Koehler, P. Mohr, P. Möller, R. K. Wallace, S. E. Woosley, S. E. Woosley, S. Goriely, S. Goriely, S. Goriely, S. Harissopulos, T. Rauscher, T. Rauscher, T. Rauscher, T. Rauscher, T. Sauter, W. M. Howard, Yu. M. Gledenov, Z. Y. Bao, Zs. Fülöp, Zs. Fülöp   +41 more
core   +2 more sources

Gut Mycobiota‐Associated Tryptophan Catabolites Protect Against Metabolic Dysfunction‐Associated Steatotic Liver Disease

Advanced Science, EarlyView.
ABSTRACT Accumulating evidence suggests that the intestinal microbiota participates in the progression of metabolic dysfunction‐associated steatotic liver disease (MASLD) through microbiota‐host interaction. However, the beneficial role of commensal mycobiota in MASLD progression remains poorly understood.
Shuping Qiao, Shuangya Fan, Juan Xu, Zhen Xu, Chen Peng, Junxing Qu, Ziqian Bing, Shizhen Zhou, Sunan Shen, Guifang Xu, Yue Zhao, Tingting Wang   +11 more
wiley   +1 more source

Using stable isotopes of nitrogen and carbon to study seabird ecology: applications in the Mediterranean seabird community

Scientia Marina, 2003
The application of the stable isotope technique to ecological studies is becoming increasingly widespread. In the case of seabirds, stable isotopes of nitrogen and carbon have been mainly used as dietary tracers. This approach relieson the fact that food
Manuela G. Forero, Keith A. Hobson
doaj   +1 more source