Now showing items 21-30 of 47
Regulatory properties of AMP deaminases from rat tissues
(Elsevier, 1991)
1. 1. Phosphoeelluse column chromatography under double gradient conditions (phosphate and KC1) revealed two forms of AMP deaminase in rat heart and brain and a single form in the liver and skeletal muscle.2. 2. Kinetically ...
Hydrogen-induced CO displacement from the Pt(111) surface: an isothermal kinetic study
(Elsevier, 1991-11-02)
Chemisorbed CO can be completely removed from the Pt(111) surface in the temperature range 318 to 348 K for hydrogen pressures above 2 x 10-2 Torr. Thermal desorption of CO in this temperature range in the absence of ...
The interaction of nitrous oxide with cobalamin-dependent methionine synthase
(Elsevier, 1991-08)
Physical properties of a planar magnetron glow discharge
(Elsevier, 1991)
Continued work with a planar magnetron glow discharge plasma device which uses permanent magnets located behind a planar cathode to trap plasma electrons in circular orbits parallel to the cathode surface is described. ...
Electrophysiological actions of VIP in rat somatosensory cortex
(Elsevier, 1991)
Electrophysiological and biochemical studies suggest that VIP may exert a facilitating action in the neocortical local circuitry. In the present study, we examined the actions of VIP and VIP + norepinephrine (NE) on ...
Synthesis of a pyrido[1,2-a]purine nucleoside by a novel ring cleavage-annulation reaction of 3-[beta]-D-ribofuranosylimidazo-[4,5-d]--triazin-4-one
(Elsevier, 1991-10-07)
Treatment of 7-(2,3,5-tris--(t-butyldimethylsilyl)-[beta]--ribofuranosyl)imidazo[4,5-]-v-triazin-4-one (1) with MnO2 in hot pyridine furnished 7-(2,3,5-tris--(t-butyldimethylsilyl)-[beta]--ribofuranosyl)pyrido[1,2-a]-purine ...
Elastic analysis of the energy and relaxation of stepped surfaces
(Elsevier, 1991-09-01)
We present an analytical, elastic analysis for the energy and relaxation of stepped surfaces. The analysis is based upon the observation that the most prominent feature of the non-reconstructive surface relaxation consists ...
Stability of trimetrexate, a new non-classical antifolate, in infusion solutions
(Elsevier, 1991-06-28)
A prerequisite for the prolonged infusion of a drug via a totally implanted drug delivery system is that the drug solution must be sufficiently stable at physiological temperatures to endure the time intervals between drug ...
Spectroscopic studies of Lewis acid--base complexes--VI. Vibrational spectra and normal coordinate calculations for several isotopic varieties of trimethylphosphine--gallium trichloride
(Elsevier, 1991)
Raman and infrared spectra of trimethylphosphine--gallium trichloride have been obtained from microcrystalline solids, mulls and KBr discs. The data include results from the deuterated species as well as from samples ...