Now showing items 321-330 of 373
Octa(3-chloroammoniumpropyl) octasilsesquioxane
(John Wiley & Sons, Ltd., 1999-04)
The octahydrochloride salt of octa(3-aminopropyl)octasilsesquioxane can be isolated in 30% yields by controlled hydrolytic condensation of 3-aminopropyltriethoxysilane in strongly acidic methanol. The analytically pure ...
Synthesis of a disulfide stabilized RNA hairpin
(Elsevier, 1994-03-14)
An N-3 ethylthiol-modified uridine has been synthesized and incorporated through solid-phase phosphoramidite chemistry at the 5'- and 3'-termini of an RNA hairpin to provide increased conformational stability via a disulfide ...
The relationship between saccharin and alcohol intake in rats
(Elsevier, 1992)
Male rats were given daily sessions during which a palatable saccharin solution was available. Based on intakes averaged over 3 days, groups with low, intermediate, or high intake of saccharin were formed. These rats were ...
Generation of 2-azapentadienyl anions and their cycloaddition with alkenes. Synthesis of 2-alkenylpyrrolidines
(Elsevier, 1994-09-19)
[alpha],[beta]-Unsaturated imines 2 bearing an N-[1-(tri-n-butylstannyl)]alkyl group were transmetalated with n-BuLi to generate 2-azapentadienyl anions 3 which underwent [4[pi]s+2[pi]s] anionic cycloadditions with alkenes ...
Purification and characterization of cytochrome P450 2E2 from hepatic microsomes of neonatal rabbits
(Elsevier, 1991-12)
The alcohol-inducible P450 2E subfamily in the rabbit has two known members that differ in only 16 amino acid residues scattered throughout the polypeptide chain. P450 2E1 has been thoroughly characterized, and is known ...
Expression, Purification, and Binding Properties of Human Cellular Retinoic Acid-Binding Protein Type I and Type II
(Elsevier, 1993-02-01)
Human cellular retinoic acid-binding protein (CRABP) type I and type II were expressed in Escherichia coli from cloned cDNAs. Expressed proteins were purified by gel filtration and ion-exchange chromatography, resulting ...
Charge-density domains in photoexcited quantum-well structures
(Elsevier, 1990-04-01)
We present theoretical and experimental results on the dielectric response of an electron-hole plasma confined to a quantum-well. Hartree calculations reveal large nonlinearities in the screening properties which, when ...
Immunohistochemical localization of the kappa1 opioid receptors
(Elsevier, 1994-11-10)
Using antibodies generated to the C-terminal 41 amino acids of the cloned rat kappa receptor, the present study examines the distribution of the kappa1 receptor-like immunoreactivity (li) using immunohistochemical techniques. ...
Phase II Trial of Suramin in Patients with Metastatic Renal Cell Carcinoma
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-05)
This study was conducted to assess the efficacy and toxicity of suramin administered using a fixed dose schedule in patients with advanced renal cell carcinoma. Fourteen eligible patients with advanced renal cell carcinoma ...
Aniline hydrogenolysis on nickel: effects of surface hydrogen and surface structure
(Baltzer Science Publishers, Baarn/Kluwer Academic Publishers; J.C. Baltzer AG, Science Publishers ; Springer Science+Business Media, 1995-09)
Fluorescence yield near-edge spectroscopy (FYNES) above the carbon K edge and temperature programmed reaction spectroscopy (TPRS) have been used as the methods for characterizing the reactivity and structure of adsorbed ...