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Matematik ve Fen Bilimleri Eğitimi / Mathematics and Science Education: Recent submissions
Now showing items 61-80 of 129
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(PERGAMON-ELSEVIER SCIENCE LTD, 2009)A total of 82 fungal isolates were screened for their ability to reduce 3,5-bis(trifluoromethyl)-acetophenone 1. Penicillium expansum was found to successfully reduce ketone I in the submerged culture. A second screening ...
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Production of (S)-(-)-1-(1'-Napthyl) Ethanol by Rhodotorula glutinis Isolate Using Ram Horn Peptone (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2008)The bioreduction of 1-acetonaphthone 1 by locally isolated Rhodotorula glutinis strains using ram horn peptone (RHP) gave (S)-(-)-1-(1'-naphthyl) ethanol ( 2), an important pharmaceutical intermediate. R. glutinis strains ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2000)A new generation of soluble metallophthalocyanine derivatives (5a, 5b, 6a, 6b, 7b, 8b and 8b.2KSCN) bearing four 14-membered [1,4,8,11] dioxadiaza macrocycles, 14-membered [1,4,8,11] diazadithia-macrocycles or 14-membered ...
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(SPRINGER, 2008)A simple, efficient and practical procedure for the Biginelli reaction using alumina sulfuric acid (ASA) as a novel acid catalyst is described under solvent-free conditions. The catalyst exhibited remarkable reactivity at ...
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(ELSEVIER SCIENCE SA, 2008)We have investigated the effect of the Au-diffusion on the mechanical and transport properties of the (Bi,Pb)(2)Sr(2)Ca(2)Cu(3)Oy (Bi-2223) superconducting samples with different annealing times of 10, 20 and 50 It. The ...
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(IOP PUBLISHING LTD, 2009)We investigated the effect of cooling rates on the microstructure and mechanical properties of Bi(1,6)Pb(0,4)Sr(2)Ca(2)Cu(3)Oy superconductors prepared by standard solid state reaction methods. The samples were annealed ...
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(MAX KASPAREK VERLAG, 2008)Clutch size and breeding success in Little Egrets Egretta garzetta nesting colonially at Lake Poyrazlar, northwest Turkey, were monitored between 2002 and 2005. The mean clutch size in the Little Egret was 3.17 (n = 100) ...
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(ELSEVIER SCI LTD, 2007)Ram horns are waste materials from the meat industry. The objective of this study was to investigate the effects of various concentrations of ram horn (RHH) hydrolysate as a supplement on xanthan production from a local ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2007)Enantiomerically pure compounds are important building blocks in the synthesis of natural products. In this study, the reduction of acetophenone to the (S)-isomer of 1-phenylalcohol with a high enantiomeric excess (ee) by ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2007)Fourteen strains of Aspergillus niger were isolated from soil samples. These isolates were evaluated for tile reduction of acetophenone to 1-phenylethanol. Among the tested isolates, whole cells of the A. niger EBK-9 isolate ...
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(ELSEVIER SCIENCE BV, 2007)We studied the grain boundary properties of Sm doped Bi(Pb)SrCaCuO using the Hall generator ac susceptibility (chi = chi' + i chi"). Hall generator is a convenient tool to investigate the shielding effect of superconductors ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2007)Alternaria alternata EBK-4 fungus isolated from a plant sample was evaluated for the asymmetric reduction of acetophenone analogues. In a previous study, this isolate was used for the reduction of acetophenone to 1-phenylethanol ...
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(IOP PUBLISHING LTD, 2007)In order to investigate the role of Au doping and diffusion-annealing duration on the mechanical properties of Bi - Pb - Sr - Ca - Cu - O, Bi1.8Pb0.35Sr1.9Ca2.1Cu3Oy superconductors were prepared by standard solid- state ...
Now showing items 61-80 of 129
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