Results 51 to 60 of about 68,774 (280)

Combined measurement of hydrogen sulfide content and sulfur isotope in natural gas

Shiyou shiyan dizhi
The natural gas containing hydrogen sulfide in China has great exploration potential, and the origin, source and formation mechanism of hydrogen sulfide are of concern to petroleum workers.
Huamin YANG, Ping WANG, Cheng TAO, Jie WANG, Liangbang MA   +4 more
doaj   +1 more source

Notions of Witwatersrand gold-uranium deposits genesis in the light of sulfur, oxygen and carbon isotopic characteristics

Известия высших учебных заведений: Геология и разведка, 2015
A review of foreign and Russian publications on gold-bearing Witwatersrand conglomerates dealing with investigations of sulfur isotopic composition of shingle-like formations of pyrites, that often contain gold, and of oxygen isotopic composition of ...
T. N. Kosovets
doaj   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

Advanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu, Meijuan Zhang, Lingchao Zhu, Haiyan Ke, Amancio de Souza, Qian Li, Daniel Castella, Nicolai Lehnert, Lubo Zhang, Arlin B. Blood   +9 more
wiley   +1 more source

Chemical Metabolomics: Chemical Biology Tools for Advanced Metabolism Investigations

Angewandte Chemie, EarlyView.
The human metabolism has been investigated for several millennia. The metabolome is known for a high complexity due to a large number of different metabolites that are present at different concentrations. Metabolomics has been developed as a field to investigate the entire human metabolome and to elucidate disease development mechanisms.
Alejandro Torregrosa‐Chinillach, Ioanna Tsiara, Wawrzyniec Haberek, Weifeng Lin, Daniel Globisch   +4 more
wiley   +2 more sources

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

Advanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang, Junjie Cui, Zhenjie Yao, Boyuan Zhu, Nithinraj Panangattu Dharmarajan, Ajayan Vinu, Junwu Zhu   +6 more
wiley   +1 more source

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

Catalytic Enantioselective Multicomponent Reactions of Sulfoxonium Ylides Enabled by a Formal Rearrangement—A Versatile Entry to Enantioenriched α‐Sulfanyl Carbonyl Compounds

Angewandte Chemie, EarlyView.
A catalytic network embedding a formal rearrangement enables the first catalytic enantioselective multicomponent reaction (MCR) of sulfur ylides. In the presence of a bulky chiral phosphoric acid, the reaction combines sulfoxonium ylides, aldehydes and thiols, and affords synthetically versatile β‐hydroxy‐α‐sulfanyl carbonyl compounds in ...
Nicolò Santarelli, Pietro Pecchini, Nunzio Matera, Andrea Pellegrini, Riccardo Fabbri, Irati Celada Cubero, Leire Navarro Rubio, Cristina Di Pietro, Andrea Mazzanti, Mariafrancesca Fochi, Luca Bernardi   +10 more
wiley   +2 more sources

Sulfur isotope analysis of collagen: Quality controls and proboscidean wetland habitats

Quaternary Environments and Humans
Sulfur isotopes (δ34S values) have significant potential for addressing archaeological, paleontological, and paleoecological research questions.
Jessica Z. Metcalfe, Lauryn E. Eady-Sitar, Ayumi Hyodo, Taylor Belot   +3 more
doaj   +1 more source

Mercury in Florida Bay fish: spatial distribution of elevated concentrations and possible linkages to Everglades restoration [PDF]

, 2005
Health advisories are now posted in northern Florida Bay, adjacent to the Everglades, warning of high mercury concentrations in some species of gamefish.
Crumley, Peter H., Evans, David W.
core  

Selenium and molybdenum enrichment in uranium roll-front deposits of Wyoming and Colorado, USA [PDF]

, 2017
Acknowledgements The authors wish to thank Cal VanHolland, Jim Bonner and John Cooper of Ur-Energy (Casper, Wyoming) for their assistance with sampling, data provision and feedback.
Bullock, Liam A., Parnell, John
core   +1 more source