Now showing items 11-20 of 105
Transferrin: A potential source of iron for oxygen free radical-mediated endothelial cell injury
(Elsevier, 1992-04)
The ability of transferrin to potentiate oxygen free radical-mediated endothelial cell injury was assessed. 51Cr-labeled endothelial cells derived from rat pulmonary arteries (RPAECs) were incubated with hydrogen peroxide ...
Determination of the chemical environment of sulphur in petroleum asphaltenes by X-ray absorption spectroscopy
(Elsevier, 1992-01)
Sulphur K-edge X-ray absorption spectra are analysed for a diverse series of petroleum asphaltenes. The spectra of the asphaltenes are interpreted by fitting with a linear superposition of model compound spectra. This ...
Inactivation of Escherichia coli 2-amino-3-ketobutyrate CoA ligase by phenylglyoxal and identification of an active-site arginine peptide
(Elsevier, 1992-11-15)
Treatment of homogeneous preparations of 2-amino-3-ketobutyrate CoA ligase from Escherichia coli, a pyridoxal 5'-phosphate-dependent enzyme, with phenylglyoxal, 4-(oxyacetyl)phenoxyacetic acid, 2,3-butanedione, or ...
Heteroaromatic polyamides from cyanoimidazoles
(John Wiley & Sons, Inc., 1992-06)
The synthesis of a new class of heteroaromatic polyamides based on cyanoimidazoles are described. The monomer, 2-amino-4-cyanoimidazole-5-carboxylic acid ( 3 ) is prepared from a two-step hydrolysis of 2-amino-4,5-dicyanoimidazole ...
Interfacial adhesion and toughening mechanisms in an alloy of polycarbonate/polyethylene
(Elsevier, 1992)
Interfacial adhesion and toughening mechanisms in an alloy of polycarbonate/polyethylene (PC/PE) are investigated using transmission electron microscopy. In contrast to the general speculation, it is found that the PE ...
Effiziente Synthese makrocyclischer Kohlenwasserstoffe mit Durchmessern im Nanometerbereich
(WILEY‐VCH Verlag GmbH, 1992-07)
Aromatische Borheterocyclen: Erzeugung von 1 H -Borepin und Struktur von Tricarbonyl(1-phenylborepin)molybdÄn Diese Arbeit wurde von der Research Corporation und dem Petroleum Research Fund der American Chemical Society gefÖrdert. Professor William von E. Doering zum 75. Geburtstag gewidmet
(WILEY-VCH Verlag GmbH, 1992-09)
No Abstract.
Endothelin increases [Ca2+]i in rat pancreatic acinar cells by intracellular release but fails to increase amylase secretion
(Elsevier, 1992-08-12)
In individual fura-2 loaded cells of rat pancreatic acini endothelin-1 (ET-1) (10-50 nM) induced sustained oscillations in [Ca2+]i. At higher concentrations a larger, but transient increase in [Ca2+]i was observed, which ...
Substituent effects on 13C NMR chemical shifts in dialkylaminophenylchlorophosphines
(Elsevier, 1992)
The relative chemical shifts and 2J(PC) coupling constants in the low-temperature limiting spectra of a series of Ph(R2N)PCl compounds [R = Me, Et, PhCH2, iPr and c-Hex] differ for R = primary or secondary. For primary ...