Now showing items 1-10 of 62
An investigation of the maximum experimental safe gap anomaly
(Elsevier, 1979)
The "safe gap" is defined as the maximum gap between two close-fitting, flat, machined metal surfaces that will just prevent an explosion within a vessel from producing a propagating combustion wave in the gases that ...
Simple procedures for the rapid cleavage of ester lipids and for the large-scale isolation from brain of cerebroside sulfate
(Elsevier, 1979-12)
The ester groups of glycerophospholipids in tissue extracts can be cleaved in less than 10 min at room temperature if the lipids are extracted with hexane-isopropanol and the filtrate is treated with methanolic NaOH. The ...
Tritium exchange reactions catalyzed by 2-oxo-4-hydroxyglutarate aldolase from Escherichia coli K-12
(Elsevier, 1979-05-10)
Tritiated water and tritiated substrates have been used to study exchange reactions catalyzed by Escherichia coli 2-oxo-4-hydroxyglutarate aldolase (4-hydroxy-2-oxoglutarate glyoxylate-lyase, EC 4.1.3.16, 2-oxo-4-hydroxyglutarate ...
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 ...
Electrochemical reduction of thymine in dimethyl sulfoxide autoprotonation of the radical anion and reduced free radical
(Elsevier, 1979-09-25)
Thymine is reduced in dimethyl sulfoxide (E1/2 of -2.4 V); the decrease in apparent faradaic n from one at inifinite dilution to two-thirds at concentraitons above 2 mM is due to proton transfer by thymine to the initially ...
An exactly solvable model for the Fermi contact interaction
(Springer-Verlag, 1979-06)
A model for the Fermi contact interaction is proposed in which the nuclear moment is represented as a magnetized spherical shell of radius r 0 . For a hydrogen-like system thus perturbed, the Schrödinger equation is solvable ...
Composition of the aqueous phase of chromaffin granules
(Elsevier, 1979-09-20)
Nuclear magnetic resonance spectroscopy has been used to determine the composition of the aqueous phase of bovine chromaffin granules. Relative concentrations of catecholamines (epinephrine plus norepinephrine), ATP and ...
Enzymic effects of [beta]-glucosidase destruction in mice changes in glucuronidase levels
(Elsevier, 1979-02-01)
1. 1. The injection into mice of a single dose of conduritol B epoxide, a covalent inhibitor of glucosidases, quickly produced changes in tissue levels of [beta]--glucoronidase (EC 3.2.1.31). The specific activity of the ...
Thermophysical properties of the garnet, grossular: Ca3Al2Si3O12
(Elsevier, 1979-01)
The heat capacity of a gem-quality mineralogical sample of grossular: Ca3Al2Si3O12 has been determined by equilibrium adiabatic-shield calorimetry from 5 through 600 K and adjusted to the stoichiometric terminal-component ...
Exciton percolation kinetics and exciton coherency: 1B2u naphthalene
(Elsevier, 1979-02-01)
The time evolution of the fluorescence from a naphthalene "guest" and a betamethylnaphthalene "sensor" in a C10D8 "host" was measured at 1.8 and 4.2 K. A rigorous heterogeneous kinetic model is used to fit the data, based ...