Results 51 to 60 of about 27,362 (303)
Advances in the Study on Mercury Isotope Geochemistry and Its Application in Mineral Deposits
Yankuang ceshi, 2021 BACKGROUND As an important mineralization element, mercury is widely distributed in different geological bodies and participates in diagenesis and mineralization.
XU Chun-xia +4 more
doaj +1 more source
Eos, Transactions American Geophysical Union, 1983 A rash of new controversy has emerged around the subject of mass‐independent isotope fractionation effects, particularly in the case of the oxygen isotopes. To be sure, the controversy has been around for awhile, but it has been given new impetus by the results of a recent study by Mark H. Thiemens and John E.
openaire +1 more source
Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface
FEBS Open Bio, EarlyView.HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana +5 more
wiley +1 more source
Biological fractionation of lead isotopes in Sprague-Dawley rats lead poisoned via the respiratory tract. [PDF]
PLoS ONE, 2012 It was considered that lead isotope ratios did not change during physical, chemical, or biological processes. Thus, lead isotope ratios have been used as fingerprints to identify possible lead sources.
Jing Wu +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Isotope fractionation studies of molybdenum
, 2007 Mass spectrometric studies of the isotopic composition of molybdenum have become an active area of research in stable isotope geochemistry, biogeochemistry and cosmochemistry.
Varner, M., Wieser, M., De Laeter, John
core +1 more source
Titanium isotope fractionation in solar system materials [PDF]
, 2020 New methods to determine the titanium (Ti) mass-dependent isotope fractionation of solar system materials to high precision were developed by combining internally normalised Ti isotope data with double-spike analyses utilising a 47Tisingle bond49Ti ...
Parkinson, Ian J +7 more
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Journal of Analytical Science and Technology, 2023 Toxic gases can be emitted when sulfides form compounds with heavy metals; thus, a series of pretreatments are required prior to the analysis of sulfur isotope ratios to remove unnecessary elements.
Jaeguk Jo +3 more
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Nonbiological Fractionation of Iron Isotopes
Science, 2000 Laboratory experiments demonstrate that iron isotopes can be chemically fractionated in the absence of biology. Isotopic variations comparable to those seen during microbially mediated reduction of ferrihydrite are observed. Fractionation may occur in aqueous solution during equilibration between inorganic iron complexes. These findings provide insight
Anbar, A, Roe, J, Barling, J, Nealson, K
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Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source