Now showing items 21-30 of 52
Estimation of acyldihydroxyacetone phosphate and lysophosphatidate in animal tissues
(Elsevier, 1984-11-14)
Chemical and enzymatic methods have been developed to measure small quantities (10-8-10-10 mol) of acyldihydroxyacetone phosphate in animal tissues. Lipids extracted from tissue samples with acidic CHCl3/ methanol were ...
Nicotinamide adenine dinucleotide (NAD+). Formal potential of the NAD+/NAD[middle dot] couple and NAD[middle dot] dimerization rate
(Elsevier, 1984-03-30)
The rate constant, kd, for the dimerization of the free radical (NAD[middle dot]), produced on the initial one-electron reduction of NAD+, was measured by double potential-step chronoamperometry, fast-scan cyclic voltammetry ...
Synthesis of N-acetyllactosamine containing a -[6-3H]galactopyranosyl group
(Elsevier, 1984-07-01)
A simple and convenient method for the introduction of radiolabel onto C-6' of N-acetyllactosamine is described. 1-N-Benzyl-3-O-[beta]--galactopyranosyl--arabinosylamine (1) was synthesized from 3-O-[beta]--galactopyrano ...
Dual-mode EPR spectrometry of O2-pulsed cytochrome c oxidase
(Elsevier, 1984-06-26)
O2-activated bovine heart cytochrome c oxidase has been examined by dual-mode EPR spectrometry. Resonances have been observed at g = 10 and 4.5 in the parallel mode and at g = 10, 5, 1.8 and 1.7 in the normal mode. The ...
Stereospecific synthesis of - and -1 alkoxy-1,3-butadienes
(Elsevier, 1984)
A stereospecific, highly efficient, generally applicable synthesis of - and -1-alkoxy-1,3-butadienes involving dehydrative decarboxylations of 4,5-unsaturated-2-alkoxy-3-hydroxy-carboxylic acids is described.
The existence of a critical salt concentration for particle release
(Elsevier, 1984-09)
A critical salt concentration (CSC) was found to exist in the water sensitivity of Berea sandstone. If the salinity of the permeating fluid falls below the CSC, the sandstone permeability is significantly reduced as a ...
Hydroxyapatite dissolution rates in fluoride/dodecylamine solutions
(Elsevier, 1984-05)
The influence of fluoride (F) alone and together with dodecylamine hydrochloride (DAC) on the dissolution rate behavior of hydroxyapatite (HAP) crystal suspensions has been studied. The results showed that F and DAC inhibit ...
A theoretical study of the gas-phase basicity of molecules containing arsenic--carbon multiple bonds
(Elsevier, 1984-07)
Gas-phase proton affinities are calculated using ab initio methods for the unknown unsaturated molecules H2CAsH and HCAs as well as for AsH3. The results parallel those previously found by us for the corresponding phosphorus ...