Now showing items 61-70 of 1680
Conversion of dehydroepiandrosterone sulfate to androst-5-enediol-3-sulfate by soluble extracts of rat testis
(Elsevier, 1965-09)
3H-Androst-5-ene-17-one-3[beta]-y1 sulfate is converted to 3H-androst-5-ene-17[beta]-o1-3[beta]-y1 sulfate by soluble extracts of rat testis in the presence of added NADH2 or NADPH2.The conversion was approximately 4 times ...
Cycloaddition of vinyl aziridines with unsaturated substrates. A novel rearrangement of an unsaturated nitro compound.
(Elsevier, 1981)
Vinylaziridine undergoes reaction with electrophilic acetylenes and olefins to produce 7-membered azepine derivatives. With [beta]-nitro-styrene however, a novel rearrangement occurs, presumably via an ene reaction to ...
Revisiting the Response Mechanism of Polymeric Membrane Based Heparin Electrodes
(WILEY‐VCH Verlag, 2012-01)
Potentiometric membrane electrodes that respond to heparin and other polyanions were introduced in the early 1990s. Herein, the mechanism of polymer membrane electrode type heparin sensors is revisited. The extraction/diffusion ...
Thermodynamics of iron sulfides I. Heat capacity and thermodynamic properties of Fe9S10 at temperatures from 5 K to 740 K
(Elsevier, 1991-03)
Measurements of the heat capacity of Fe9S10 over the temperature range 5 K to 740 K reveal a first-order structural transition at 495 K and two higher-order transitions with maxima at 534 K and 591 K. The last two are of ...
Hormonal regulation of steroidogenic enzyme gene expression in Leydig cells
(Elsevier, 1992-12)
In normal mouse Leydig cells, steady state levels of mRNA of CYP11A, 3[beta]-hydroxysteroid dehydrogenase [Delta]5- > [Delta]4-isomerase (3[beta]HSD), and CYP17 are differentially regulated. There is high basal expression ...
Oligoribonucleotides with 2′‐O‐(tert‐Butyldimethylsilyl) Groups
(Wiley Periodicals, Inc.IRL Press,, 2000-07)
The chemical synthesis of oligoribonucleotides on solid support is routinely performed via the phosphoramidite method. However, the additional 2‐OH function of the ribofuranosyl sugar requires suitable protection during ...
Immunochemical studies on the binding specificity of the blood group Leb specific lectin Griffonia simplicifolia IV
(Elsevier, 1983-05)
The specificity of the Griffonia simplicifolia IV (GS-IV) lectin was studied by quantitative precipitin and quantitative precipitin inhibition assays. The lectin precipitated most strongly with a human H,Leb blood group ...