Results 141 to 150 of about 3,020 (234)

Zinc/Silver-Based Hydrogen Sulfide Trapping as an Alternative to Cadmium for Sulfur Stable Isotope Analysis. [PDF]

Rapid Commun Mass Spectrom
Ure D, Dominato KR, Beaton ML, Mundle SOC.   +3 more
europepmc   +1 more source

Titanium Detected in Liver, Kidney, Spleen, and Intestine Is Not Related to Dose, Time, or Route of Exposure to Titanium Dioxide: A Systematic Review

Environmental Toxicology, Volume 41, Issue 8, Page 537-548, August 2026.
ABSTRACT Titanium dioxide (TiO2), used as a food additive (labeled E171 in Europe), was withdrawn from the European market in 2022. The E171 toxicity mechanism involves its uptake, oxidative stress, DNA damage, and inflammation. It has been hypothesized that the TiO2 accumulation nanoparticles (NPs) or E171 triggers tissue damage, and some studies have
Carmen Ximena Martínez‐Escutia, Estefany I. Medina‐Reyes, Eduardo Delgado‐Armenta, Yolanda I. Chirino   +3 more
wiley   +1 more source

Multiproxy stable isotope analysis provides insights into diet, animal management, and residential mobility in Old Bara, a metropolitan suburb of the Oyo Empire, West Africa. [PDF]

PLoS One
Akogun MO, Szpak P, Oelze VM, Leishman K, Hilsden J, Speller C, Janz L, Aleru JO, Ogundiran A.   +8 more
europepmc   +1 more source

Carbonate‐Associated Sulfate Does Not Record Superheavy δ34S in Deep Scandinavian Bedrock Fractures: Implications for Pyrite Formation in the Deep Biosphere

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract In deep bedrock fractures of the Fennoscandian shield, pyrite with “superheavy” δ34S values of up to 147‰ exists together with calcite. The extreme variability and 34S‐enrichment in pyrite indicate that microbial sulfate reduction (MSR) evolved to almost complete sulfate exhaustion in closed‐system microenvironments.
V. Fichtner, F. Genske, E. Kooijman, H. Drake   +3 more
wiley   +1 more source

Unveiling the metallogenic continuum of an Archean craton. [PDF]

Nat Commun
Demmer M, Ezad I, Fiorentini M.
europepmc   +1 more source

Production, preservation, and biological processing of mass-independent sulfur isotope fractionation in the Archean surface environment. [PDF]

Proc Natl Acad Sci U S A, 2013
Halevy I.
europepmc   +1 more source

Near‐Earth Cosmic Ray Modulation Index ϕ and Neutron Monitor Cutoff Rigidities at Hourly Cadence: Toward an Improved Monitoring of Solar‐Terrestrial Radiation Environment, Space Weather, and Space Climate

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Cosmic rays (CRs) are energetic particles originating from galactic and extragalactic sources. When arriving into the solar system and the Sun's heliosphere, they are diverted and modulated by the magnetic activity of the Sun. This modulation can be quantified by the modulation parameter ϕ $\phi $ determined with the Force‐field approximation (
Pauli Väisänen, Nicholas Larsen, Sergey Koldobskiy, Markus Similä, David Pelosi, Miguel Orcinha   +5 more
wiley   +1 more source

Tracking sources and transformations of dissolved sulfate in karstic sub-basins in Southwest China using dual isotopes and water chemistry. [PDF]

Sci Rep
Wang J, Zhou Z, Dong H, Ding S, Wang X, Zhang Y, Huang Y.   +6 more
europepmc   +1 more source

Putative Mechanisms for Initial Reaction of Anaerobic Benzene Degradation Presumably Involving a Flavoprotein

Environmental Microbiology, Volume 28, Issue 8, August 2026.
Anaerobic biodegradation of benzene by sulphate‐reducing strain BzS1 was studied by combining genomics, differential proteomics and targeted metabolite analyses. Strain BzS1 has an exceptionally streamlined metabolism. A highly abundant heterotrimeric flavoprotein may add benzene to either enolpyruvate or glutaconyl‐CoA followed by channelling into the
Florin Musat, Lars Wöhlbrand, Rene Jarling, Michael Kube, Niculina Musat, Patrick Becker, Stefan Bruns, Richard Reinhardt, Rudolf Amann, Friedrich Widdel, Heinz Wilkes, Ralf Rabus   +11 more
wiley   +1 more source

Integrative Forensic Genetics, Biochemical, and Histological Methods for Reconstructing Biological Profiles from Aged Human Skeletal Remains. [PDF]

Genes (Basel)
Zupanič Pajnič I, Leskovar T.
europepmc   +1 more source