Results 111 to 120 of about 2,289,697 (227)

Molecular Electrocatalysis Coupled With a Palladium Membrane Reactor Affords Selective Nitrogen Reduction

Advanced Science, EarlyView.
A palladium membrane reactor delivers active hydrogen to homogeneous nickel terpyridine catalysts, which then selectively hydrogenate dinitrogen to ammonia. ABSTRACT Ammonia production is a cornerstone of modern industry and society, yet the conventional Haber–Bosch process accounts for nearly 2% of the global CO2 emissions. A promising and potentially
Morgan McKee, Sai Phani Kumar Vangala, Farzaneh Farzinpour, Jasmin Wagner, Giacomo Pugliese, Hamed Heidarpour, Hossein Bemana, J. Felipe Estrada‐Ruiz, Jörg Daniels, Alessandro Bismuto, Ali Seifitokaldani, Nikolay Kornienko   +11 more
wiley   +1 more source

Quantitative and Nuanced Approaches Elucidate Carbon Isotope Records

Geochemistry, Geophysics, Geosystems
Earth scientists have leveraged carbon isotope records to interpret Earth history and establish chronostratigraphic frameworks for decades (e.g., Halverson et al., 2005, https://doi.org/10.1130/b25630.1; Kaufman & Knoll, 1995, https://doi.org/10.1016 ...
Cedric J. Hagen
doaj   +1 more source

Application and Prospect of Stable Carbon Isotope to the Study of Carbon Cycle in Grassland Ecosystem

Shuitu baochi yanjiu, 2021
Utilizing stable carbon isotopes to trace the nutrient circulation and energy flow in ecosystem, trace the dynamics of carbon transfer in ecosystem quantitatively, and clarify the ecosystem carbon cycle and its driving mechanism has become an important ...
ZHANG Hao, LI Jianping
doaj  

Diamonds and carbon isotopes

Eos, Transactions American Geophysical Union, 1983
Diamond crystals may contain useful geochemical evidence of the deep portions of the upper mantle in their carbon isotopes. Two recent studies of types I and II diamonds showed that variations in δ13C may be related to carbon reservoir sources in the mantle (Nature, 303, 791–792, and 793–795, 1983).
openaire   +1 more source

Coordination‐Asymmetry‐Regulated Reconstruction of Electron‐Rich Cu Sites for pH‐Dependent Nitrate‐to‐Ammonia Electrocatalysis

Advanced Science, EarlyView.
Distinct initial Cu coordination environments drive different pH‐dependent structural evolution pathways, resulting in divergent nitrate reduction activity and behavior. ABSTRACT Electrocatalytic nitrate reduction reaction (e‐NO3RR) offers a promising route to valorize nitrate‐contaminated wastewater while enabling sustainable ammonia production ...
Shih‐Ching Huang, Yu‐Ru Lin, Hsiang‐Chun Yu, Yi‐Dong Lin, Yu‐Chiao Chang, Chun‐Kuo Peng, Yu‐Chang Lin, Wen‐Wei Wu, Hao Ming Chen, Chi‐Liang Chen, Han‐Yi Chen, Yan‐Gu Lin   +11 more
wiley   +1 more source

Carbon isotope record of profile Norfolk

, 2012
Carbon isotope record of profile ...
Andrew S Gale (7975793), Gale, Andrew S, Silke Voigt (6976127), Jung, Claudia, Jenkyns, Hugh C, Claudia Jung (6976124), Voigt, Silke, Hugh C Jenkyns (6964514)   +7 more
core   +1 more source

HADHA K406 Lactylation Regulates Metabolic Reprogramming and Suppresses Immune Responses in Gastric Cancer

Advanced Science, EarlyView.
HADHA K406 lactylation fuels fatty acid β‐oxidation and HMGCR‐dependent cholesterol biosynthesis, fostering immunosuppressive MDSCs and exhausted CD8+ T cells in gastric cancer. Loss of this modification blocks cholesterol production, remodels the tumor microenvironment, and tumor growth is suppressed via combined inhibition of HMGCR and LDHA ...
Maoxiao Feng, Qinlian Jiao, Jiankang Zhu, Yidan Ren, Xiaoyu Teng, Xin Su, Zigan Li, Yuxuan Cai, Xiaoyan Liu, Yunshan Wang, Guangyong Zhang   +10 more
wiley   +1 more source

(Table 3) Carbon content, carbon isotope composition oxyogen isotope compositions from serpentinite bulk rocks of the Northern Apennine ophiolite

, 2016
(Table 3) Carbon content, carbon isotope composition oxyogen isotope compositions from serpentinite bulk rocks of the Northern Apennine ...
Alt, Jeffrey C, Stefano M Bernasconi (6967457), Gretchen L Frueh-Green (6971186), Frueh-Green, Gretchen L, Plas, Alessio, Schwarzenbach, Esther, Alessio Plas (8014727), Bernasconi, Stefano M, Jeffrey C Alt (6958445), Esther Schwarzenbach (8014724)   +9 more
core   +1 more source

PDHA1 Hyperactivation‐Mediated Glucose Metabolism Reprogramming Fuels Neutrophil NETosis and Promotes Acute Lung Injury

Advanced Science, EarlyView.
During NETosis, neutrophils shift metabolically toward enhanced OXPHOS and partially reduced glycolysis. This shift is driven by PDHA1 hyperactivity‐dependent selective metabolic reprogramming. The neutrophil‐targeted nanoparticle 3‑FP‑BSA NPs effectively inhibit NETosis and attenuate ALI.
Yu‐Biao Liu, Wen‐Jing Zhong, Chen‐Yu Zhang, Meng‐Rui Chen, Nan‐Shi‐Yu Yang, Han‐Xi Sha, Yan‐Ling Qiu, Hui Chen, Jin‐Tong Yang, Li‐Ying Liang, Jian‐Bing Xiong, Shao‐Kun Liu, Cha‐Xiang Guan, Jia‐Xi Duan, Yong Zhou   +14 more
wiley   +1 more source

Isotope chemistry to trace carbon mineralization in construction materials

RILEM Technical Letters
This contribution presents an overview of the current literature and application potential of carbon isotope analysis in cementitious systems. Stable carbon isotope ratios (¹³C/¹²C) offer powerful insights for tracking carbonation processes, especially ...
Daniel Jansen, Thomas Matschei, Robert van Geldern, Johannes Barth, Ruben Snellings   +4 more
doaj   +1 more source