Now showing items 21-30 of 136
Initiation of poly-N-acetyllactosamine chain biosynthesis occurs preferentially on complex multiantennary asparagine-linked oligosaccharides
(Elsevier, 1990-08-01)
An N-acetyl-[beta]--glucosaminyltransferase activity involved in the initiation of poly-N-acetyllactosamine chain biosynthesis can be solubilized from Ehrlich ascites tumor cell microsomal membranes. The ability of this ...
Single residue modifications of the delta opioid receptor selective peptide, [d-Pen 2 ,d-Pen 5 ]-enkephalin (DPDPE)
(Blackwell Publishing Ltd, 1990-08)
Vibrational analysis of 2,3,4-trichloropentanes
(Elsevier, 1990)
One meso form and the racemic isomer of 2,3,4-trichloropentane have been synthesized, and their infrared and Raman spectra analysed on the basis of a general force field refined for multiply-chlorinated hydrocarbons. ...
Nutrient effects on intestinal drug absorption
(Elsevier, 1990-01)
The effect of oral co-administration of nutrients on intestinal drug absorption is a function of drug dissolution, gastrointestinal (GI) residence time and intestinal membrane transport. Nutrient effects on GI residence ...
Degradation kinetics of pentachlorophenol by Phanerochaete chrysosporium
(Wiley Subscription Services, Inc., A Wiley Company, 1990-05)
The extracellular enzymes and cell mass from the pregrown Phanerochaete chrysosporium cultures were used for the degradation of PCP. The use of both extracellular enzymes and cell mass resulted in extensive mineralization ...
Mapping the human amylase gene cluster on the proximal short arm of chromosome 1 using a highly informative (CA)n repeat
(Elsevier, 1990-05)
The human amylase gene cluster includes a (CA)n repeat sequence immediately upstream of the [gamma]-actin pseudogene associated with the AMY2B gene. Analysis of this (CA)n repeat by PCR amplification of genomic DNA from ...
A new preparation of highly functionaized aromatic and heteroaromatic zinc and copper organometallics
(Elsevier, 1990)
Functionalized aromatic iodides possessing an ester, cyano, chloride or keto group can be converted to arylzinc iodides by reaction with zinc in DMF or DMAC. After transmetallation to the corresponding arylcopper, they ...
Incubation in cyclohexene decomposition at high temperatures
(John Wiley & Sons, Inc., 1990-02)
A detailed master equation simulation has been carried out for the thermal unimolecular decomposition of C 6 H 10 in a shock tube. At the highest temperatures studied experimentally [J. H. Kiefer and J. N. Shah, J. Phys. ...
SN2' Substitutions of 1,3-Dichloropropenes with the Functionalized Copper-Zinc Reagents RCu(CN)ZnX
(Elsevier, 1990)
The addition of benzenesulfenyl (or benzeneselenyl) chlorides to propargylic chlorides affords regio- and stereospecifically (E)-1,3-dichloro-2-phenylsulfenyl (or phenylselenyl) propenes (2a-c). These new reagents were ...
Chronic treatment with ethanol produces supersensitivity to oxotremorine
(Elsevier, 1990)
1. The effect of chronic treatment with ethanol (14% v:v in drinking water) on the physiological endpoint core temperature which is partially regulated by a muscarinic mechanism was measured in adult male rats (n = 8).2. ...