Results 81 to 90 of about 14,752 (295)
Communications Earth & EnvironmentMarine silicate alteration exerts a major influence on marine carbon and cation cycles, but has proven difficult to quantify. In this context, silicon isotopes of marine pore fluids became an important tracer.
Sonja Geilert +3 more
doaj +1 more source
Osmium isotope analysis as an innovative tool for provenancing ancient iron: A systematic approach.
PLoS ONE, 2020 The innovation of iron production is often considered one of the greatest technological advances in human history. A reliable provenancing method for iron is instrumental for the reconstruction of economic, social and geo-political aspects of iron ...
Michael Brauns +5 more
doaj +1 more source
, 2022 Although less variable in abundances than carbon or oxygen stable isotopes, iron isotopes show analytically significant mass-dependent isotopic variations in nature. The geochemical community has investigated the range of Fe isotope compositions in both high- and low-temperature geological environments.
openaire +1 more source
Iron Isotopes Applied to BIF-Hosted Iron Deposits
, 2023 AbstractPublished and unpublished iron isotope data from banded iron formations (BIF) and their BIF-hosted hypogene (hydrothermal) iron ores from the Quadrilátero Ferrífero (itabirites), Corumbá, and Carajás iron districts in Brazil, as well as from the Hamersley province in Australia are presented and discussed.
Lydia Maria Lobato +4 more
openaire +1 more source
, 2022 Examination of stable Fe isotopes is a powerful tool to explore Fe cycling in a range of environments. However, the isotopic fractionation of Fe in acid mine drainage (AMD) has received little attention and is poorly understood.
Edward D. Burton +7 more
core +1 more source
Tailored D‐π Conjugation Boosts Piezocatalytic CO2 Reduction in a Platinum(II)‐Acetylide Framework
Advanced Science, EarlyView.The highly conjugated metalII‐acetylide framework demonstrates efficient ultrasound‐driven conversion of CO2 to CO. The piezoelectric field generated by ultrasound facilitates electron transfer from the tetraphenylene π‐column to the MII‐bis(acetylide) moiety, enabling CO2 activation. Compared to PdII‐ and NiII‐based analogues, the stronger d–π orbital
Mude Zhu +6 more
wiley +1 more source
Advanced Science, EarlyView.PhosSight is a unified deep‐learning framework for phosphoproteome identification, featured by a phosphorylation‐aware detectability predictor. It improves identification sensitivity in DDA through deep re‐localization and rescoring, accelerates DIA searches by detectability‐guided spectral library pruning, and expands phosphoproteome coverage to ...
Ben Wang +10 more
wiley +1 more source
Low-energy M1 modes in germanium isotopes [PDF]
EPJ Web of ConferencesMagnetic dipole strength functions are determined for the series of germanium isotopes from N = 30 to 48 on the basis of a large number of transition strengths calculated within the shell model.
Schwengner Ronald, Frauendorf Stefan
doaj +1 more source
Advanced Science, EarlyView.Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao +11 more
wiley +1 more source
A freshwater diet-derived C-14 reservoir effect at the Stone Age sites in the Iron Gates gorge [PDF]
, 2001 Human bones from single inhumation burials and artifacts made from terrestrial mammal (ungulate) bone found in direct association with the skeletons were obtained from the Stone Age site of Schela Cladovei situated just below the iron Gates Gorge of the ...
Bonsall, C. +5 more
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