Results 41 to 50 of about 9,785 (280)

Multiple sulfur isotopes of iron sulfides from thick greigite-bearing sediments indicate incomplete anaerobic oxidation and possible leakage of methane

open access: yes, 2023
Multiple sulfur isotopes of iron sulfides from the South Yellow Sea sediments in the paper "Multiple sulfur isotopes of iron sulfides from thick greigite-bearing sediments indicate incomplete anaerobic oxidation and leakage of coastal methane".
Gang-Jian Wei (14123106)   +6 more
core   +1 more source

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

open access: yesAdvanced 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   +9 more
wiley   +1 more source

Metallogeny of the Dagangou Au-Ag-Cu-Sb Deposit in the Eastern Kunlun Orogen, NW China: Constraints from Ore-Forming Fluid Geochemistry and S-H-O Isotopes

open access: yesGeofluids, 2021
A study of ore-forming fluid geochemistry and S-H-O isotopes has been conducted to reveal the metallogeny of the Dagangou Au-Ag-Cu-Sb deposit, NW China. Three mineralization stages are identified within Dagangou, including ankerite-quartz-pyrite (Ank-Qz ...
Liang Li   +7 more
doaj   +1 more source

Applications of stable water and carbon isotopes in watershed research: Weathering, carbon cycling, and water balances [PDF]

open access: yes, 2011
Research on rivers has traditionally involved concentration and flux measurements to better understand weathering, transport and cycling of materials from land to ocean.
Petelet-Giraud, Emmanuelle   +23 more
core   +1 more source

Cross Kingdom Metabolic Engineering Paradigm Elevating Sustainable Protein Production

open access: yesAdvanced Science, EarlyView.
ABSTRACT Confronting the dual crisis of escalating global protein demand and unsustainable agriculture necessitates transformative solutions. Here, we pioneer evolutionary insights from maize nitrogen optimization via asparagine synthetase (ASNS) to rewire metabolism in Pichia pastoris.
Yuanyuan Du   +4 more
wiley   +1 more source

CO2‐Induced Reverse Lattice Oxygen Spillover on Pt/CeO2 Enables Sulfur‐Resistant Dry Reforming of Methane

open access: yesAngewandte Chemie, EarlyView.
A critical step, dry reforming of methane (DRM) converts biogas into useful syngas. Yet trace H2S in biogas rapidly poisons DRM catalysts, limiting practical use. We developed a robust Pt/CeO2 catalyst sustaining DRM activity via CO2‐induced reverse lattice oxygen spillover in H2S‐rich environments.
Jun Liu   +11 more
wiley   +2 more sources

Cascade Separation of Stable Sulfur Isotopes in a Lithium–Sulfur Electrolysis Cell

open access: yesEnergy Material Advances
Preparation of high-purity stable sulfur isotopes and their derivatives from the natural source is crucial to the research in the fields of pharmacology, ecology, and geology.
Xixi Feng   +6 more
doaj   +1 more source

Geochemical studies of the Nanxiaoyao gold deposit in central Yishu fault zone, Shandong province, Eastern China

open access: yesSolid Earth Sciences, 2020
The Nanxiaoyao gold deposit is located in the middle part of the central Yishu fault zone in Shandong Province, Eastern China. In this study, we examined its genesis based on detailed in-situ LA-ICP-MS analyses of pyrite trace element contents, sulfide ...
Ling-qiang Meng   +8 more
doaj   +1 more source

Nanocellulose Alleviates Intrahepatic Cholestasis of Pregnancy via Gut Microbiota‐Mediated Bile Acid Homeostasis

open access: yesAdvanced Science, EarlyView.
Nanocellulose, derived from microcrystalline cellulose (MCC) through sulfuric acid hydrolysis or mechanical grinding to produce CNC or CNF, was tested in a rat ICP model. Particularly, CNF improved gut microbiota composition, reduced secondary bile acid metabolism, and restored bile acid homeostasis through modulation of the gut–liver axis.
Muhua Yu   +18 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

open access: yesAngewandte 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   +10 more
wiley   +2 more sources

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