abundance of the heart. Synonyms: generosity affluence; wealth: the enjoyment of abundance. Physics, Chemistry. the number of atoms of one isotope of an element divided by the total number of atoms in a mixture of the isotopes.Discover More Other Words From pre·a·bun·dance noun ...
In the 1800's scientists were searching for new elements.By the late 1860's more than 60 chemical elements had been identified,and much was known about their descriptive chemistry.Various proposals were put forth to arrange the elements into groups based on similarities in chemical and physical ...
(physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present see more noun (chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in ...
4.1. Chemistry Chemistry analysis showed that despite the addition of a relatively high nominal oil concentration (10 mg/L) the levels of dissolved PAHs were low (on the order of magnitude of 10 μg/L) and aliphatic compounds were below detection limit (<100 μg/L). Such low concentrations...
Like silicon, germanium naturally reacts and forms complexes with oxygen in nature. Because it seldom appears in high concentration, germanium was discovered comparatively late in the history of chemistry. Germanium ranks near fiftieth in relative abundance of the elements in the Earth's crust. In ...
Nature Chemistry(2023) Parametrization of energy sharing distributions in direct double photoionization of He J. Andersson S. Zagorodskikh R. Feifel Scientific Reports(2019) Scientific Reports (Sci Rep)ISSN2045-2322(online) Sign up for theNature Briefingnewsletter — what matters in science, free ...
Some problems that arise when l3(Fourier transform NMR is used for quantitative analysis are discussed. Fourier transform NMR instrumentation provides a built-in capability of measuring the spin鈥攍attice relaxation time (T,) of individual-carbon resonances. The meaning of T, and how spin鈥攍att...
3d). No difference was seen in TCA respiration, meaning maximal non-uncoupled respiration that can by achieved with substrates that feed acetyl-CoA into the citric cycle. We next calculated flux control ratios to elucidate qualitative differences between myoblasts and myotubes (Fig. 3e–h). ...
Using in vitro experiments, we show that coffee can stimulate growth ofL.asaccharolyticus. Plasma metabolomics on 438 samples identified several metabolites enriched among coffee consumers, with quinic acid and its potential derivatives associated with coffee andL.asaccharolyticus. This study reveals a...
Lammel DR, Nüsslein K, Tsai SM, Cerri CC (2015) Land use, soil and litter chemistry drive bacterial community structures in samples of the rainforest and Cerrado (Brazilian Savannah) biomes in Southern Amazonia. Eur J Soil Biol 66:32–39 Article CAS Google Scholar Lawal TE, Babalola OO...