Results 161 to 170 of about 892,606 (318)

Investigations Into the Human Metabolism of Trestolone (7α‐Methyl‐19‐Nortestosterone)

open access: yesDrug Testing and Analysis, EarlyView.
As the known metabolites of 7α‐methyl‐19‐nortestosterone (MENT), M1 and M2, suffer from chromatographic issues under routine doping control conditions, the human metabolism of MENT was reinvestigated. From the numerous new metabolites detected, especially, M5 and M10 were identified as the most promising candidates to be implemented into routine ...
Thomas Piper   +2 more
wiley   +1 more source

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

open access: yesQuaternary Environments and Humans
Sulfur isotopes (δ34S values) have significant potential for addressing archaeological, paleontological, and paleoecological research questions.
Jessica Z. Metcalfe   +3 more
doaj   +1 more source

Rational Design and Operando Characterization of Hierarchical α‐FeOOH‐FeP/Ni3S2 Catalysts for High‐Rate Alkaline Water Electrolysis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A hierarchical FeOOH–FeP@Ni3S2 electrocatalyst is engineered on 3D Ni foam to enable efficient alkaline oxygen evolution. Operando spectroscopic techniques reveal dynamic surface reconstruction and proton‐coupled electron transfer (PCET) kinetics. The catalyst exhibits low overpotential and industrial‐level current operation, driving high‐performance ...
Maria S. Metaxa   +2 more
wiley   +1 more source

Metal‐Directed Self‐Assembly in a Beta‐Sheet Miniprotein Scaffold

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
A rationally engineered miniprotein, V14C, which is based on the beta β‐sheet Foldon domain, self‐assembles via a metal‐binding site to form well‐defined oligomers in the presence of Zn2+, Hg2+, and Cd2+. This modular design expands the toolbox for creating custom metalloproteins, enabling studies of metal–protein interactions for biochemical functions
Chandan Muni Reddy   +3 more
wiley   +1 more source

Geographic distribution of feather δ34S in Europe

open access: yesEcosphere
Geographic distribution models of environmentally stable isotopes (the so‐called “isoscapes”) are widely employed in animal ecology, and wildlife forensics and conservation.
Vojtěch Brlík   +8 more
doaj   +1 more source

Sulfur‐Rich μ‐O Diiron Catalyst for Electrochemical Hydrogen Production

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
A diferric μ‐oxido complex supported by a sulfur‐rich scaffold acts as a proton‐reduction electrocatalyst for H2 production via a μ‐hydroxido species. An aminodithiophenolate scaffold with an NS2 donor set supports diiron complex formation. The diferrous precursor activates O2, giving rise to a diferric μ‐oxido species, which acts as a proton‐reduction
Hugo C. Hernández‐Toledo   +7 more
wiley   +1 more source

Tungsten Isotope Constraints on the Cenozoic Sulfur Cycle [PDF]

open access: bronze, 2020
Ruiyu Yang   +11 more
openalex   +1 more source

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