Now showing items 1-10 of 41
Small angle X-ray scattering from coal-derived liquids
(Elsevier, 1982-05)
Small angle X-ray scattering measurements were used to determine the size and shape of asphaltene and preasphaltene micelles in solution. The fraction of the coal-derived liquids forming micelles in solution was as high ...
An examination of the cyanide derivative of bovine superoxide dismutase with electron-nuclear double resonance
(Elsevier, 1982-05-21)
The Cu(II) sites of native, azido- and cyano-derivatives of bovine superoxide dismutase (superoxide:superoxide oxidoreductase, EC 1.15.1.1) have been examined by electron-nuclear double resonance ENDOR). The ENDOR spectrum ...
Percolative versus homogenous energy transport kinetics: time-resolved donor and acceptor fluoresence of isotopic mixed naphthalene crystals
(Elsevier, 1982-04-16)
Tune-resolved spectral studies of the singlet exciton transport threshold in doped naphthalene-perdeuteronaphthalene mixed crystals are presented. While a homogeneous kinetic model adequately explains many of the results, ...
Association of calmodulin inhibition, erythrocyte membrane stabilization and pharmacological effects of drugs
(Elsevier, 1982-11-08)
The present study was designed to determine whether there is an association of drug-induced inhibition of calmodulin functions, drug-induced membrane stabilization (protection against osmotic lysis), and pharmacological ...
Properties of diacylglycerol kinase in adult and fetal rat lung
(Elsevier, 1982-12-13)
Diacylglycerol kinase activity is found in both adult and fetal lung. Approximately 27 and 52% of the total activity is found in microsomes and cytosol, respectively. The activity is maximal at pH 7.4. The apparent Km for ...
The effects of suspended residual solids on the rheology of coal-derived liquids
(Elsevier, 1982-05)
The rheology of the products of coal liquefaction was investigated using a Weissenberg Rheogoniometer, Model R-16, modified to allow total-normal-force measurements. Solvent extracted oils and asphaltene fractions were ...
An enzymatically inactive variant of human lactate dehydrogenase-LDHBGUA-1 Study of subunit interaction
(Elsevier, 1982-03-18)
The LDHBGUA-1 variant is an electrophoretic variant which is enzymatically inactive. It is only detectable because of its ability to form heterotetramers with A and/or active B subunits and alter the electrophoretic pattern, ...
Regulation by isoproterenol of muscarinic acetylcholine receptor numbers and sensitivity in rat submandibular, but not lacrimal, glands
(Elsevier, 1982-06-16)
Chronic administration of -isoproterenol, a [beta]-adrenergic agonist, to male Sprague-Dawley rats increased submandibular gland weights by 3 to 4-fold. This increase resulted from a combination of hyperplasia and hypertrophy ...
Theoretical analysis of eletrochemical reactions involving two successive one-electron transfers with dimerization of intermediate-applicaiton to NAD+/NADH redox couple
(Elsevier, 1982-02-10)
The mechanism of an electrode reaction consisting of two successive one-electron (1e) transfer steps, coupled with dimerization of the intermediate product under conditions of steady-state convective diffusion, has been ...
Exciton transport in naphthalene alloys: A transition from percolation to diffusion
(Elsevier, 1982-12-03)
Steady-state singlet excitation transport in ternary naphthalene crystals (C10H8/C10D8/[beta]-methylnaphthalene) fits diffusion models at 4.2 K, but not at 1.8 K, where it fits a percolation model.