Results 101 to 110 of about 9,785 (280)

Stable sulfur isotopes measurement.

, 2016
Stable Sulfur Isotopes Measurement This work describes sulfur cycle in the atmosphere, sulfur exchanges in biological processes, influence of sulfur compounds to atmospheric aerosol formation, sulfur aerosol impact on climate.
Burneika, Antanas,
core  

The sedimentology and diagenesis of copper-bearing rocks of the southern margin of the Damaran Orogenic Belt, Namibia and Botswana [PDF]

, 1981
Late Proterozoic sediments of the Doornpoort, Klein Aub and Ghanzi Formations outcrop on the southern foreland of the Damaran Orogenic Belt, and contain stratiform copper ore deposits.
Ruxton, Peter Antony
core  

Chemical composition and stable sulfur isotopes in sediment core KOT97-6MUC

, 2004
Chemical composition and stable sulfur isotopes in sediment core KOT97 ...
Böttcher, Michael Ernst, Lüschen, Holger, Volkov, Igor I, Igor I Volkov (6960872), Neretin, Lev N, Holger Lüschen (7894652), Bo Barker Jørgensen (6965981), Lev N Neretin (7894655), Jørgensen, Bo Barker, Michael E Böttcher (6958676)   +9 more
core   +1 more source

Evaluation of a pantoprazole and 4‐desmethylpantoprazole‐sulfate metabolic ratio as a novel CYP2C19 phenotyping method

British Journal of Clinical Pharmacology, EarlyView.
Aims CYP2C19 is one of the most important pharmacogenes, and its activity is highly variable due to factors such as genetics or drug–drug interactions. Due to the lack of an appropriate endogenous CYP2C19 biomarker, surrogate methods to assess its activity are warranted.
Julian Peter Müller, Vladimir N. Belov, Sabrina Yamoune, Bob Miller, Mohammed Hasoumi, Jolanta Tupiec, Thea Laurentius, L. Cornelius Bollheimer, Julia C. Stingl, Katja S. Just   +9 more
wiley   +1 more source

Strong local, not global, controls on marine pyrite sulfur isotopes. [PDF]

Sci Adv, 2021
Pasquier V, Bryant RN, Fike DA, Halevy I.   +3 more
europepmc   +1 more source

Degradation changes stable carbon isotope depth profiles in palsa peatlands [PDF]

, 2014
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.
Leifeld, J., C. Alewell, J. P. Krüger, Alewell, C., Krueger, J. P., J. Leifeld   +5 more
core   +1 more source

Metabolic Flux Analysis Reveals Cell Line‐Specific Rewiring in CHO Cells Following TCA Cycle Intermediate Feeding for Bioprocess pH Control

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Chinese hamster ovary (CHO) cells are the leading host for recombinant therapeutic protein production in the biopharma industry. In this study, we investigated how feeding acidic forms of tricarboxylic acid (TCA) cycle intermediates—malic acid, succinic acid, and α‐ketoglutaric acid—affects cell culture performance and metabolism in two ...
Sarah A. Sacco, Kevin J. Ruiz‐Márquez, Rachel Moen, Irina Trenary, Xiaolin Zhang, Xiaowen Wang, Malik Padellan, Henry Lin, Jamey D. Young   +8 more
wiley   +1 more source

Isotopic insights into microbial sulfur cycling in oil reservoirs

Frontiers in Microbiology, 2014
Microbial sulfate reduction in oil reservoirs (biosouring) is often associated with secondary oil production where seawater containing high sulfate concentrations (~28 mM) is injected into a reservoir to maintain pressure and displace oil.
Christopher G Hubbard, Yiwei eCheng, Anna eEngelbrektson, Jennifer L Druhan, Li eLi, Jonathan B Ajo-Franklin, John D Coates, John D Coates, Mark E Conrad   +8 more
doaj   +1 more source

Beyond Furnaces: Harnessing In Situ Joule Heating for Efficient C1 Catalysis

Carbon Energy, EarlyView.
Joule‐heated catalysis directly converts electrical energy into localized heat within conductive catalysts, overcoming the heat‐transfer limitations of conventional furnaces. This review summarizes recent advances in C1 molecule conversion, including CO2 methanation, reforming for hydrogen production, and HCHO/CO oxidation, while highlighting ...
Xue Kong, Tiantian Su, Faiza Meharban, Shengbin Cao, Jingsan Xu, Chao Lin, Xiaopeng Li, Yejian Xue, Wei Luo   +8 more
wiley   +1 more source

Redefining the Nitrogen Cycle Through Electronic Configuration Driven Electrocatalysis for Low Carbon Energy

Carbon Energy, EarlyView.
This review reveals how electronic configuration engineering governs the entire electrocatalytic nitrogen cycle, providing structure‐informed insights into reaction selectivity, catalytic durability, and sustainable nitrogen utilization across energy and environmental systems. ABSTRACT The global nitrogen cycle is essential to food production, chemical
Jiamu Feng, Linai Zhou, Mincan Yang, Aoxiang Zhu, Zengfeng Wei, Weilin Xu, Jia Li, Jun Wan   +7 more
wiley   +1 more source