Now showing items 1-10 of 13
Determination of Fluorine Ions Penetration Degree Into Enamel by Empa.
(Journal de Physique (Paris), Colloque, 1984)
Exogen of different preparations was applied to completely healthy teeth of children up to 11 years. A month after application of fluorine, teeth were extracted and prepared by standard methods for investigation by electron ...
Free radical carbocyclic ring reconstruction
(Tetrahedron Letters, 1986)
Alkenyl radical generated by β-fragmentation of tertiary cyclohexyloxy radical with carbocyclic ring opening, possessing a suitably located olefinic double bond, undergoes to the intramolecular 5-exo-trigonal cyclization ...
Avarol-induced DNA strand breakage in vitro and in Friend erythroleukemia cells
(Cancer Research, 1987)
The hydroquinone-containing cytostatic compound avarol inhibits predominantly growth of those cell lines which have a low level of superoxide dismutase. The substrate of this enzyme, the superoxide anion, was found to be ...
Application of the Program for Automatic Acquisition and Characterization of X-Ray Emission Spectra of Some Light Elements.
(Materials Science Monographs, 1982)
Suppression of the modulatory effects of the antileukemic and anti-human immunodeficiency virus compound avarol on gene expression by tryptophan
(Cancer Research, 1989)
The amino acid L-tryptophan is known to be a modulator of many processes of cell metabolism. In this contribution we show that L-tryptophan interferes with some biological effects of the antileukemic and anti-human ...
The lead tetraacetate oxidation of Δ6-unsaturated tertiary alcohols. Eight-membered cyclic ether formation
(Research on Chemical Intermediates, 1989)
In the lead tetraacetate oxidation of the unsaturated tertiary cyclic alcohols 1a and 1b, and the acyclic alcohol 15a, all possessing a Δ6-olefinic bond (with respect to the hydroxyl group), the α-acetoxylated eight-membered ...
Esca and Empa in the Analysis of Sulphides.
(Science of Sintering, 1985)
The purpose of the work was to determine the dependence of parameters describing XPS and XES spectra of sulfur on physico-chemical properties of some sulfides. The discussion considers chemical shifts of spectra correlated ...
Electrochemical reactivity of biologically active quinone/hydroquinone sesquiterpenoids on glassy carbon electrodes
(Bioelectrochemistry and Bioenergetics, 1987)
The redox reactivity of avarone and avarol, a quinone/hydroquinone couple isolated from the marine sponge Dysidea avara, was investigated by cyclic voltammetry, using a glassy carbon electrode. Both oxidation of avarol and ...
Correlative geochemical study of crude oils from southeastern and southern parts of the Pannonian Basin
(Organic Geochemistry, 1988)
Several crude oils from the southeastern Yugoslav part of the Pannonian Basin are correlated for the first time on the basis of many bulk and specific parameters. The investigations involved 15 oils from oil-gas fields A ...
Local electron density models for Tl to Pb conversion in lorandite
(Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detecto, 1988)
The nuclear conversion of 205Tl to 205Pb by neutrino capture, lorandite (TlAsS2) converts into Pb-bearing lorandite (Tl1-xPbxAsS2) where x is a very small number. Having used a highly simplified cluster model of lorandite, ...