Now showing items 51-60 of 426
Thermodynamics of Fe(II)Fe(III) oxide systems II. Zinc- and cadmium-doped Fe3O4 and crystalline magnetite
(Elsevier, 1976-06)
Four doped samples of composition MzFe3 - xO4, in which for M = cadmium, x = 0.005 and 0.010, and for M = zinc, x = 0.005 and 0.066, were prepared using a high-temperature solid-state ceramic technique. X-ray, magneto-t.g.a., ...
Evidence for a novel flavin prosthetic group associated with NADH dehydrogenase from Peptostreptococcus elsdenii
(Elsevier, 1971-05-12)
1. 1. NADH dehydrogenase (EC 1.6.99.3) has been purified from the strictly anaerobic rumen bacterium Peptostreptococcus elsdenii. The purified protein is specific for NADH as electron donor; it can use 2,6-dichlorophenolindophenol ...
Electrophilic alkylation of 1-SB9H9
(Elsevier, 1977-06-21)
Reaction of closo-1-SB9H9 with either ethyl or methyl iodide in the presence of A1C13 produces alkylated derivatives of the type 1-SB9H(9-x)Rx (R = C2H5, CH3;x = 1---5), which were identified by GC/MS, 11B and 1H NMR ...
Destruction and resynthesis of mouse [beta]-glucosidases
(Elsevier, 1979-02-01)
1. 1. Injection of a single dose of conduritol B epoxide into mice produced almost complete destruction of glucocerebrosidase ( glucohydrolase, EC 3.2.1.45) in liver, spleen, brain, and kidney within 5 h. Restoration of ...
Soluble cytochrome b5 reductase from human erythrocytes
(Elsevier, 1972-07-12)
1. An enzyme that catalyzes the reduction of erythrocyte cytochrome b5 has been isolated from the supernatant fraction of erythrocyte hemolysates by chromatography on DEAE-cellulose, Amberlite CG-50, and Bio-Gel P-60.2. ...
The enthalpies of combustion and formation of [2.2]-paracyclophane and triptycene
(Elsevier, 1973-09)
The enthalpies of combustion, ΔHoc, for crystalline [2.2]-paracyclophane (C16H16) and triptycene (C20H14) have been measured by oxygen combustion calorimetry. The derived standard enthalpies of formation at 298.15 ...
Electron diffraction study of the molecular structure of trifluoromethyl hypofluorite
(Elsevier, 1971-06)
The following structural parameters and estimated standard deviations were found for trifluoromethyl hypofluorite: rg(C-F) = 1.319 +/- 0.003 A, rg(C-O) = 1.395 +/- 0.006 A, rg(O-F) = 1.421 +/- 0.006 A, [angle-measured](F-C-F) ...
2-acetamido-2-deoxy-[alpha]-D-galactosidases of clostridium perfringens. separation and characterization of an exoglycosidase and an oligosaccharidase
(Elsevier, 1978-03)
Two distinct 2-acetamido-2-deoxy-[alpha]-D-galactosidases have been separated from filtrates of cultured Clostridium perfringens by electrophoresis in 6.5% poly(acryl-amide) gels. One of the enzymes had a mobility of ...
2-acetamido-2-deoxy-[alpha]--galactosidases of clostridium perfringens. Separation and characterization of an exoglycosidase and an oligosaccharidase
(Elsevier, 1978-03)
Two distinct 2-acetamido-2-deoxy-[alpha]--galactosidases have been separated from filtrates of cultured Clostridium perfringens by electrophoresis in 6.5 % poly(acryl-amide)gels. One of the enzymes had a mobility of 0.32-0.36 ...