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Ab initio calculations of solvent effects on guanine and thioguanine tautomerism
(NATL INST SCIENCE COMMUNICATION-NISCAIR, 2000)
The molecular geometries and the relative energies of the ten most stable tautomers of guanine (G1, G2, G3...etc.) and thioguanine (TG1, TG2, TG3...etc.) have been investigated at the HF/3-21G and HF/6-31G** levels in the ...
Sulfur-isotope characteristics of the volcanogenic Cu-Zn-Pb deposits of the Eastern Pontide Region, Northeastern Turkey
(V H WINSTON & SON INC, 2000)
In the Eastern Pontide Region of northeastern Turkey, volcanogenic Cu-Zn-Pb deposits of the Kuroko type are widespread within the dacitic series of the Liassic-Eocene volcano-sedimentary succession. Sulfide mineralization ...
Protective effect of vitamin E on gastric mucosal injury in rats with biliary obstruction
(MEDICARE PUBL INC, PULSUS GROUP INC, 2000)
Patients with liver disease display increased susceptibility to gastric mucosal damage. A role of free radicals has been suggested in the development of gastric mucosal damage in normal subjects. The effects of antioxidant ...
Very low grade metamorphism of Upper Paleozoic-Lower Mesozoic sedimentary rocks related to burial and thrusting in the Central Taurus Belt, Konya, Turkey
(TAYLOR & FRANCIS INC, 2000)
Metasedimentary and sedimentary rocks that represent the allochthonous Bolkardagi Unit crop out in the Central Taurus Belt. Devonian units include mainly slate, metadolomite, metadolomitic limestone, and metasandstone. ...
Immobilization of catalase on chitosan film
(ELSEVIER SCIENCE INC, 2000)
Catalase was immobilized on the chitosan film that is a natural polymer. Studies were done on free catalase and immobilized catalase on chitosan film concerning the determination of optimum temperature, optimum pH, thermal ...
Epidermal growth factor receptor (EGFR) immunolocalization in the male rat reproductive tract during pre- and postnatal periods
(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY, 2000)
A number of recent studies suggest the effects of several growth factors as well as genetic factors on the development and differentiation of the testes and excretory ducts. One of the most important growth factors affecting ...
Adverse effects of topical antiglaucoma drugs on the ocular surface
(BLACKWELL SCIENCE ASIA, 2000)
Purpose: This study was designed to determine the effect of long-term antiglaucoma topical medication on the ocular surface; measuring basal Schirmer's and tear break-up time tests using conjunctival impression cytology. ...
Various types of glomus anastomoses in developing rat fetuses
(BLACKWELL WISSENSCHAFTS-VERLAG GMBH, 2000)
Some observations on arteriovenous anastomosis (AVA) morphogenesis of rats were considered in this investigation. Interesting typical glomus anastomoses observed under light microscopy were determined by photography before ...
Effects of experimental obstructive jaundice on contractile responses of dog isolated blood vessels: Role of endothelium and duration of bile duct ligation
(BLACKWELL SCIENCE ASIA, 2000)
1. We examined the effects of experimental obstructive jaundice caused by bile duct ligation (BDL) on vascular smooth muscle function, as well as the underlying mechanisms involved, by recording responses to noradrenaline ...