Acoustic Reverberation of a Borehole Located in a Poroelastic Formation

Tracing Molecular Properties Throughout Evolution: A Chemoinformatic Approach.

“…Evidence suggests that ancient oxygen-dependent cytochrome P450 enzymes, whose functions were to hydroxylate lipophilic xenobiotics 30 , also oxidated membrane sterols to yield polyoxigenated steroids able both to traverse lipidic membranes and to act as ligands of receptors, a common feature of all steroid hormones. 22 This increasing number of oxygenated moieties improved binding ability through hydrogen bond interactions: the median numbers of hydrogen bond donors (HBD) and acceptors (HBA) rise from one in S-steroids to two and four in H-steroids, respectively, as shown in Figure 4.…”

“…Of note, despite the differences between these phylum-dependent steroidal metabolic pathways, it is clear that all members of this ancient family of polyhydroxylated lipids are synthesized via a cascade of highly conserved oxygen-dependent cytochrome P450 enzymes, which suggests that these pathways have evolved from a common unicellular ancestor. [22][23][24] In some species, however, especially plants and marine invertebrates but also amphibians, a third phase may be present in which further transformations, which Diarey Tianero et al coined as "diversity generating pathways", lead to a plethora of structurally complex steroids which are believed to have an ecological function, serving as a defensive chemical barrier against pathogens or predators 25 , and arose about 125 million years ago, as ecological networks became more intricated. 26 Several thousands of such steroids are currently known, although their biosynthetic origin remains to be established in most cases.…”

Evaluation of Temperature of Products of Combustion of Gas Coal in the Boiler Furnace TPP-312a Changes in the Composition of Coal From the Enriched to Low-Grade

“…С их помощью обеспечивается стабильность качества угля, что является определяющим для энергетиков. Так, например, снижение зольности на 10% увеличивает теплоту сгорания угля почти на 25 % [8].…”

Generation of Glucose-Responsive, Insulin-Producing Cells from Human Umbilical Cord Blood-Derived Mesenchymal Stem Cells

“…Cells were incubated at 37°C in 5% CO 2 in a humidified atmosphere. When Several studies have demonstrated that CB-MSCs display robust in vitro proliferative capacity without well-developed colonies of adherent, fibroblast-like cells appeared, cultures were washed with PBS, harvested spontaneous differentiation; under appropriate culture conditions, CB-MSCs show the potential to develop into with 0.05% trypsin-EDTA (Invitrogen), and reseeded at 1 × 10 5 cells per flask in the same medium without dexa-mesodermal-, endodermal-, and ectodermal-derived cell subsets (4, 5,28,31,32,35,38,49,61). Although a small methasone.…”