“…Although hexagonal silicon is a metastable phase, once formed it is found being stable during subsequent high temperature treatments even during process steps up to 1050 ºC.…”
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“…Response surface methodology has been employed for the optimization of temperature ((o)C), time (hr) and different concentrations of maleic acid (MA), sulfuric acid (SA) and phosphoric acid (PA) that seemed to be significant variables with P < 0.05. …”
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“…Since the source of DOC in the deep EJS is found to be of marine origin on the basis of δ(13)C-DOC signatures, this slow degradation rate seems to be due to low temperature (<1 (o)C) in the entire deep water column. This observational result suggests that the storage capacity of DOC in the world ocean is very sensitive to global warming and slowdown of global deep-water overturning.…”
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“…Then 10% (w/v) of starch was gelatinized by autoclaving to transit gel state, and cooled down at 60ºC and mixed with L. plantarum to encapsulate it. …”
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“…In the crystal, extensive O—H⋯O, O—H⋯S and O—H⋯Cl hydrogen bonds and weak C—H⋯O, C—H⋯S and C—H⋯Cl inter­actions link the thia­calixarene mol­ecules, tetra­ethyl­ammonium cations and chloride anions, forming a three-dimensional network encompassing channels running parallel to the a-axis direction. …”
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“…The average number of days ≥31.5 and 32(o)C per year increased 2670% and 2560%, respectively, from the mid-1990 s to present relative to the previous 20 years. …”
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“…Fourier transform infrared spectroscopy (FTIR) revealed the presence of ester (C-O-C stretching), ketone (C-C stretching), carboxylic acid (O-H bending), phosphine (P-H stretching), aromatic (C-H stretching and bending), and alcohol (O-H stretching and bending) groups in the treated cells indicating the high accumulation of lipid hydrocarbons in the treated cells. …”
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“…The chemical properties of straw, especially the NCH/OCH(3), alkyl O-C-O, and O-alkyl functional groups, exercised a significant effect on the composition of the bacterial community at different temperatures during decomposition—results that extend our understanding of bacterial communities associated with the decomposition of straw in agro-ecosystems and of the effects of temperature and chemical properties of the decomposing straw and soil on such communities.…”
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“…Here using in situ phenological records from Europe, we found that the standard deviation (SD, as a measure of synchrony) of first leafing day (FLD) and the SD of first flowering day (FFD) among local plants were significantly smaller in the years and/or in the regions with a more rapid within-spring warming speed (WWS, the linear slope of the daily mean temperature against the days during spring, in (o)C/day) with correlation coefficients of −0.75 and −0.48 for FLD and −0.55 and −0.23 for FFD. …”
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“…In this study, we found that cold-stimulated germination of dormant grains correlated with a transient increase in JA content and expression of JA biosynthesis genes in the dormant embryos after transfer to 20 (o)C. The induction of JA production was dependent on the extent of cold imbibition and precedes germination. …”
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“…In the anion of the title hydrated mol­ecular salt, C(4)H(8)N(3)O(+)·C(12)H(9)N(4)O(7) (−)·H(2)O [systematic name: 2-amino-1-methyl-4-oxo-4,5-di­hydro-1H-imidazol-3-ium 5-(2,4-di­nitro­phen­yl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetra­hydro­pyrimidin-4-olate monohydrate], the 2,4-di­nitro­phenyl ring is inclined to the mean plane of the pyrimidine ring [r.m.s. deviation = 0.37 Å] by 43.24 (8)°. …”
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“…The ferrocene group is positioned in the β face of the estrone moiety, with an O—C—C—C torsion angle of 44.1 (5)°, and the carbonyl bond length of the hormone moiety is 1.216 (5) Å, typical of a C=O double bond. …”
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“…The asymmetric unit of the title compound, 4C(4)H(4)FN(3)O·C(3)H(6)N(6), comprises of two independent 5-fluoro­cytosine (5FC) mol­ecules (A and B) and one half-mol­ecule of melamine (M). …”
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“…The ESI-TOF-MS and HPLC-MS(2) analyses further revealed that treatment of A. awamori degraded B-type condensed tannin (condensed flavan-3-ol via C4–C8 linkage), but exhibited a limited capacity to degrade the condensed tannin containing A-type linkage subunits (C4–C8 coupled C2–O–C7 linkage). These results suggest that the treatment of A. awamori can significantly improve the production of condensed tannin from litchi pericarp.…”
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“…An analysis of protein structures indicates the existence of a novel, fused five-membered rings motif, comprising of two residues (i and i + 1), stabilized by interresidue N(i+1)–H∙∙∙N(i) and intraresidue N(i+1)–H∙∙∙O=C(i+1) hydrogen bonds. Fused-rings geometry is the common thread running through many commonly occurring motifs, such as β-turn, β-bulge, Asx-turn, Ser/Thr-turn, Schellman motif, and points to its structural robustness. …”
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“…In addition, N—H⋯N, N—H⋯O, C—H⋯O and C—H⋯N hydrogen bonds occur, forming a three-dimensional architecture. …”
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“…The major difference between the independent mol­ecules relates to the conformation of the five-membered chelate rings, which is an envelope with the O atom being the flap, in one mol­ecule and is twisted about the O—C(methine) bond in the other. No directional inter­molecular inter­actions are noted in the mol­ecular packing beyond the aforementioned Te⋯O secondary bonding. …”
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“…The crystal structures of two title Schiff base derivatives, C(15)H(12)N(4)O·C(2)H(6)O (1·EtOH) and C(13)H(13)N(3)O(2)S (2), were determined at 110 and 100 K, respectively. …”
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“…We developed a method to estimate glass transition temperatures based on the molar mass and molecular O:C ratio of SOA components, and we used the global chemistry climate model EMAC with the organic aerosol module ORACLE to predict the phase state of atmospheric SOA. …”
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“…Additionally, AEW triggered EPS disruption, as indicated by the deformation of the carbohydrate C-O-C bond and deformation of the aromatic rings in the amino acids tyrosine and phenylalanine. …”
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