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Electronic subband of single Si delta-doped GaAs structures
(ACADEMIC PRESS LTD, 2000)
We have theoretically investigated the subband structure of single Si delta-doped GaAs inserted into a quantum well at T = 0 K. We will discuss the influence of the delta-doping concentration, the delta-layer thickness and ...
Prediction of the acidities of organic bases in aqueous solution using AM1 COSMO solvation model
(ELSEVIER SCIENCE BV, 2000)
Potentially tautomeric pyrazole-3-ones were studied, in order to predict their tautomeric equilibrium constants and pK(a) values, using the semiempirical AM1 COSMO solvation model at the SCF level in aqueous solution. Syn ...
Crystal structure of 7-acetyl-5-benzoyl-6-phenyl-8-methyl-4,7-dihydropyrazolo[1,5-c]-1 H-pyrimidine-2-one
(OLDENBOURG VERLAG, 2000)
The title compound, C22H19N3O3 crystallizes in the triclinic space group P (1) over bar with a = 8.310(1) Angstrom, b = 9.890(1) Angstrom, c = 12.007(1) Angstrom, alpha = 92.17(1)degrees, beta = 97.32(1)degrees. gamma = ...
Relationship between the swelling process and the releases of water soluble agrochemicals from radiation crosslinked acrylamide/itaconic acid copolymers
(SPRINGER-VERLAG, 2000)
An attempt was made in this study to relate the releases of water soluble herbicide (sodium 2,2 dichloropropionate (Dowpon)) and model fertilizers (ammonium nitrate, potassium nitrate and ammonium sulfate) from the cylindrical ...
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 ...
