(n.) A nitro derivative of methane obtained as a mobile liquid; -- called also nitrocarbol.
Example Sentences:
(1) Nitromethane (NM) and 2-nitropropane (2-NP) and versatile compounds employed in a wide variety of industrial applications, thus providing ample opportunity for occupational exposure.
(2) The bound FAD and Fe3+ are reduced by the addition of nitromethane, which is not a substrate, under anaerobic conditions.
(3) Subsequent O-methylation, O-deacetylation, and condensation with nitromethane afforded the appropriate beta-glycoside of 3-methoxy-4-(2-nitrovinyl)phenol.
(4) The best yield of beta-linked disaccharide was obtained upon glycosylation by benzobromogalactose in the presence of silver triflate and tetramethylurea in nitromethane.
(5) However, treatment of 2',3'-di-O-acetyl-5'-O-tritylribavirin (11) with 4 under the Bredereck modification of the Koenigs-Knorr reaction (i.e., silver perchlorate and Drierite in nitromethane) and subsequent deacetylation furnished the desired 1-(5-O-beta-D-glucopyranosyl-beta-D-ribofuranosyl)-1,2,4-triazole-3-carb oxamide (13).
(6) The hepatotoxic and mutagenic potentials of 2-nitropropane, nitromethane, and nitroethane were compared.
(7) Trimethylsilyl trifluoromethanesulfonate in nitromethane, however, gave predominantly the alpha anomer.
(8) Metabolic effects of in vivo administration of nitromethane, a histidase inhibitor, were studied in the rat.
(9) Liver histidase activity was decreased about 78 percent after nitromethane administration, and the rate of in vivo CO2 production from histidine was also depressed.
(10) In addition to 2-nitropropane, 1-nitropropane and nitroethane are oxidatively dentrified by the enzyme, but nitromethane is inert to the enzyme.
(11) They are low-spin hexacoordinated myoglobin or hemoglobin complexes, as shown by the resonance Raman spectrum of the nitromethane-derived human hemoglobin complex which is similar to those of the known hemoglobin complexes with O2, CO, NO and nitrosobenzene.
(12) The quenching of the etheno group by nitromethane was, however, unaffected by the binding of S-1 to actin.
(13) The condensation of no-carrier-added or carrier-added [11C]nitromethane with D-arabinose to form the intermediate epimeric [1-11C]D-nitro alcohols (I and II) was investigated under various conditions.
(14) The cocktails showed higher backgrounds, lower unquenched efficiencies, and greater quench resistance to nitromethane than a reference toluene based preparation.
(15) When nitromethane was added to plasma, the apparent creatinine measured was linearly related to the amount of nitromethane added.
(16) We have observed that high SOD-like function (decomposition of superoxide anion) was observed for several iron(III) compounds with tripodal ligands and several oxovanadium(IV) compounds, and also that these compounds exhibit high catalytic activity for oxidative cleavage of 3,5-di-tert-butylcatechol in non-donating solvents such as dichloromethane or nitromethane.
(17) Different doses of benzo(a)pyrene, cigarette smoke condensate (CSC) and its nitromethane fraction (NMF), in wax pellets, were directly implanted into the lungs of Syrian golden hamsters.
(18) Condensation of methyl 3-O-(2-acetamido-4,6-O-benzylidene-2-deoxy-beta-D- glucopyranosyl)-2,4,6-tri-O-benzyl-beta-D-galactopyranoside with 3-O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D-glucopyranosyl)-2,4,6 -tri-O-acetyl-alpha-D-galactopyranosyl bromide in 1:1 benzene-nitromethane in the presence of powdered mercuric cyanide gave a fully-protected tetrasaccharide derivative, which was O-deacetylated and then subjected to catalytic hydrogenation to furnish methyl O-(2-acetamido-2-deoxy-beta-D-glucopyranosyl)-(1----3)-O-beta- D-galactopyranosyl-(1----3)-O-(2-acetamido-2-deoxy-beta-D-glucopyranosyl )- (1----3)-beta-D-galactopyranoside (15).
(19) Rates of enzyme degradation in the two strains, measured by recovery of activity after irreversible inhibition with nitromethane, were the same.
(20) The on-line synthesis of 1-11C-labelled nitroalkanes [nitromethane (I), nitroethane (II) and nitropropane (III)], from their corresponding 1-11C-labelled alkyl iodides, by use of a heated silver nitrite column is described.
Synthesis
Definition:
(n.) Composition, or the putting of two or more things together, as in compounding medicines.
(n.) The art or process of making a compound by putting the ingredients together, as contrasted with analysis; thus, water is made by synthesis from hydrogen and oxygen; hence, specifically, the building up of complex compounds by special reactions, whereby their component radicals are so grouped that the resulting substances are identical in every respect with the natural articles when such occur; thus, artificial alcohol, urea, indigo blue, alizarin, etc., are made by synthesis.
(n.) The combination of separate elements of thought into a whole, as of simple into complex conceptions, species into genera, individual propositions into systems; -- the opposite of analysis.
Example Sentences:
(1) Synthesis of choline esterase on the medium with acetylcholine at a concentration of 1% was increased more than twofold upon addition of glucose at a concentration of 0.1%.
(2) In contrast, resting cells of strain CHA750 produced five times less IAA in a buffer (pH 6.0) containing 1 mM-L-tryptophan than did resting cells of the wild-type, illustrating the major contribution of TSO to IAA synthesis under these conditions.
(3) alpha 1-Adrenergic agonists, phenylephrine and norfenefrine, did not affect the synthesis.
(4) In addition, DDT blocked succinate dehydrogenase and the cytochrome b-c span of the electron transport chain, which also secondarily reduced ATP synthesis.
(5) This induction is sensitive to actinomycin D but not to protein synthesis inhibitor puromycin, indicating an effect of estradiol at the transcriptional level, possibly mediated by the estrogen receptor.
(6) The promoters of the adenovirus 2 major late gene, the mouse beta-globin gene, the mouse immunoglobulin VH gene and the LTR of the human T-lymphotropic retrovirus type I were tested for their transcription activities in cell-free extracts of four cell lines; HeLa, CESS (Epstein-Barr virus-transformed human B cell line), MT-1 (HTLV-I-infected human T cell line without viral protein synthesis), and MT-2 (HTLV-I-infected human T cell line producing viral proteins).
(7) In addition to oncogenes, the transferred DNA contains genes that direct the synthesis and exudation of opines, which are used as nutrients by the bacteria.
(8) dl-Methionine stimulated the synthesis of cephalosporins when added after the growth phase.
(9) When the data correlating DHT with protein synthesis using both labelling techniques were combined, the curves were parallel and a strong correlation was noted between DHT and protein synthesis over a wide range of values (P less than 0.001).
(10) It was also shown that after a shock at 44 degrees C teratocarcinoma cells were able to accumulate anomalous amounts of hsp 70 despite hsp 70 synthesis inhibition.
(11) MAF-G activity was inhibited by mitomycin C and colchicine, which inhibit DNA synthesis and mitosis, respectively, but not by 2-deoxy-D-glucose, an inhibitor of glucose metabolism.
(12) However, both were identical in size when synthesized in COS-1 cells in the presence of tunicamycin or when deglycosylated after their synthesis in Xenopus oocytes.
(13) The blockade of H2 receptors is the primary action of these drugs; however, they possess also secondary actions which may represent untoward effects but in some cases may be actually useful (increase in prostaglandin synthesis, inhibition of LTB4 synthesis, etc.)
(14) The amino-terminal region of a 70 kDa mitochondrial outer membrane protein of yeast and the presequence of cytochrome c1, an inner membrane protein exposed to the intermembrane space, are thought to be responsible for localizing the proteins in their final destinations after synthesis in the cytosol.
(15) During the 1st h after induction of the sporulation process, the rate of protein synthesis increased to two times the initial value.
(16) They are capable of synthesis and accumulation of glycogen and responsible for its transfer to sites of more intense metabolism (growth, bud, blastema).
(17) Moreover, the data showed for the first time that DNA synthesis in the bone marrow and spleen and colon were markedly statistically significantly stimulated at specific times after treatment.
(18) Hyperimmunization with the tick encephalitis and Western horse encephalomyelitis viruses reproduced in the brain of albino mice, intensified the protein synthesis in the splenic tissue during the productive phase of the immunogenesis (the 7th day).
(19) The ability of cytoplasmic extracts to induce DNA synthesis in isolated, quiescent nuclei.
(20) With the stimulated liver being irradiated, the number of cells synthetizing DNA and entering into mitosis was seen reduced almost twice, whereas DNA synthesis and entering into mitosis were delayed, resp., by 4 and 6 hours.