Results 21 to 30 of about 197,633 (265)
Геодинамика и тектонофизика, 2015 The article presents the information on organizing the studies of chemical and mineral compositions of rocks at the Analytical Centre of the Institute of the Earth's Crust, SB.
А. G. Revenko
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Известия ТИНРО, 2018 Contents of heavy metals and arsenic were measured in bottom sediments under plantations of the marine farm in the Severnaya Bay in 2015–2017, using atomic-absorption spectrophotometer Shimadzu 6800 and mercury analyzer Milestone DMA-80.
K. S. Vyaznikova
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Italian Journal of Animal Science, 2021 This study assessed the ability of honeybees as environmental indicators for atmospheric Lead and Cadmium concentrations through regression analyses.
Annamaria Costa +4 more
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From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
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Gongneng cailiao yu qijian xuebaoBased on a brief review of the development history of atomic absorption spectroscopy technology, this paper summarizes the structure of the atomic absorption spectroscopy system used for in-situ real-time monitoring of the flux in molecular beam epitaxy,
Qing-ling-yun ZHANG, Yi-qiao CHEN
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Ionic Exchange Resins and Hydrogels for Capturing Metal Ions in Selected Sweet Dessert Wines
Molecules, 2018 Samples of sweet and dessert wines, Vin Santo (VSR) from Malvasia grapes, and Granello (GR) from Sauvignon grapes were collected and analyzed for the content of selected macro- and micro-nutrients (Na, K, Mg, Ca, Mn, Fe, Cu and Zn) and of Pb.
Gabriella Tamasi +9 more
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Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
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Detection of dust canons and Physico-chemical analysis of its particles in Dezful area [PDF]
مخاطرات محیط طبیعی, 2020 To identify the physicochemical and atmospheric conditions of a dust storm at the Dezful station (As Dezful Regional Representative), at first the frequency of the dust storm phenomena was investigated at the Dezful station in Twenty years (1994 -2013 ...
Broumand Salahi, MAHMOUD BEHROUZI
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Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
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Química Nova, 2009 This work describes methods for the simultaneous determination of Cd and Pb by graphite furnace atomic absorption spectrometry and As by hydride generation atomic absorption spectrometry in Brazilian nuts.
Marielle Garcia Souza +2 more
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