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Toplam kayıt 10070, listelenen: 7334-7353
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Quantitative HPTLC determination of rosmarinic acid and antioxidant activity of Origanum onites L. water and 70% methanol extracts
(Georg Thieme Verlag Kg, 2010)… -
A quantitative method of photoadsorption determination for irradiated catalyst in liquid-solid system
(Elsevier Science BV, 2009)A method for determining the amount of substrate adsorbed onto the catalyst surface in liquid-solid photocatalytic system under reaction conditions (photoadsorption) is proposed. The method has been applied to the ... -
Quantitative Reasoning: Reflections on Solving Real-World Problems
(Çukurova University, 2018)The purpose of this research is to determine the role of quantitative reasoning in the problem-solving process of the two students who go in sixth grade of secondary school. In this research, in which the qualitative ... -
Quantitative X-ray diffraction analysis of reactive infiltrated boron carbide-aluminium composites
(Elsevier Sci LTD, 2003)Dense (> 98% of theoretical) boron carbide, (B4C)-aluminium (Al) composites were produced between 985 and 1370 degreesC by pressureless melt infiltration of Al alloys into porous B4C compacts under. argon (Ar) atmosphere. ... -
Quantum chemical and experimental studies on the mechanism of alkylation of beta-dicarbonyl compounds. The synthesis of five and six membered heterocyclic spiro derivatives
(MDPI, 2004)The alkylation of beta-dicarbonyl compounds in a K2CO3/DMSO system was found to afford O- and C-alkylated derivatives, depending on the type of the P-dicarbonyl compound involved. The alkyl derivatives obtained were used ... -
Quantum chemical studies on some 1,2,4-triarylsubstituted imidazoles
(Elsevier Science BV, 2002)The geometries, proton affinities and thermodynamic properties of some 1,2,4-triarylsubstituted imidazole derivatives were calculated with full geometry optimization using AM1 and PM3 methods in aqueous phase. A possible ... -
A quantum chemical study on structure of 1,2-bis(diphenylphosphinoyl)ethane and hydroquinone cocrystal
(Elsevier Science BV, 2005)The cocrystal of 1,2-Bis(diphenylphosphinoyl)ethane (DPPEO) with hydroquinone (HQ) (1: 1) were studied theoretically with MINDO/3, MNDO, PM3 and AM I semi-empirical methods to elucidate its structure. The bond lengths and ... -
A quantum chemical study on structure of 1,2-bis(diphenylphosphinoyl)ethane and phenol cocrystal
(Elsevier Science BV, 2004)The cocrystal of 1,2-bis(diphenylphosphinoyl)ethane (DPPEO) with phenol (1: 1) were studied theoretically with AM1, PM3, MNDO and MINDO/3 semi-empirical methods to elucidate its structure. The bond lengths and angles from ... -
A quantum chemical study on structures of (+)-(R)-2,2-bis(diphenylphosphinoyl)-1,1 '-binaphthyl and its hydroquinone complex
(Elsevier Science BV, 2005)The (+)-(R)-2,2-bis(diphenylphosphinoyl)-1,1'-binaphthyl ((+)-(R)-BINAPO) and its cocrystal with hydroquinone (HQ) (1:1) were studied theoretically with AM1, PM3, MNDO and MINDO/3 semi-empirical methods to elucidate their ... -
The quantum confined Stark effect in silicon nanocrystals
(IOP Publishing LTD, 2008)The quantum confined Stark effect (QCSE) in Si nanocrystals embedded in a SiO(2) matrix is demonstrated by photoluminescence (PL) spectroscopy at room and cryogenic temperatures. It is shown that the PL peak position shifts ... -
Quantum dot nanocrystals having guanosine imprinted nanoshell for DNA recognition
(Elsevier Science BV, 2008)Molecular imprinted polymers (MIPs) as a recognition element for sensors are increasingly of interest and MIP nanoparticles have started to appear in the literature. In this study, we have proposed a novel thiol ligand-capping ... -
Quantum lifetimes and momentum relaxation of electrons and holes in Ga0.7In0.3N0.015As0.985/GaAs quantum wells
(Taylor & Francis LTD, 2011)Electronic transport in n-and p-type modulation-doped Ga0.7In0.3N0.015As0.985/GaAs quantum wells are investigated using magneto-transport measurements in the temperature range between T = 1.8 and 32K and at magnetic fields ... -
Quantum Molecular Resonance-Assisted Phonomicrosurgery: Preliminary Experience
(SAGE Publications LTD, 2015)The objective of this study was to evaluate the use of quantum molecular resonance (QMR) energy in phonomicrosurgery. Quantum molecular resonance energy (QMRE) is an innovative technology that provides low temperature ... -
Quartz crystal microbalance based nanosensor for lysozyme detection with lysozyme imprinted nanoparticles
(Elsevier Advanced Technology, 2010)The aim of this study is to prepare quartz crystal microbalance (QCM) nanosensor for the real-time detection of lysozyme. In the first part, the lysozyme imprinted (MIP) nanoparticles were prepared by mini-emulsion ... -
Quasi-Sasakian Structures on 5-Dimensional Nilpotent Lie Algebras
(Ankara University, Fac Sci, 2019)In this study, we examine the existence of quasi-Sasakian structures on nilpotent Lie algebras of dimension five. In addition, we give some results about left invariant quasi-Sasakian structures on Lie groups of dimension ... -
The quaternionic energy conservation equation for acoustic
(Slovak Acad Sciences Inst Physics, 2003)After introducing the quaternions and its algebra, the equations of the linear acoustics are defined. The local conservation equation for energy of the linear acoustics using quaternions and a quaternionic first-order ... -
Quercetin and Cisplatin combined treatment altered cell cycle and mitogen activated protein kinase expressions in malignant mesotelioma cells
(Bmc, 2016)Background: Malignant mesothelioma is a locally aggressive and highly lethal neoplasm of pleural, peritoneal and pericardial mesothelial cells without successful therapy. Previously, we reported that Quercetin in combination ... -
Quinazolinones, XVII1): Synthesis and Pharmacological Activities of Some Antipyryloxoalkylthioquinazolinones
(1990)Chinazolinone, 17. Mitt.1): Synthese und pharmakologische Wirksamkeit einiger Antipyryloxoalkylthiochinazolinone Copyright © 1990 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim -
Quinolone-Hydroxyquinoline Tautomerism in Quinolone 3-Esters. Preserving the 4-Oxoquinoline Structure To Retain Antimalarial Activity
(American Chemical Society, 2015)Recent publications report in vitro activity of quinolone 3-esters against the bc(1) protein complex of Plasmodium falciparum and the parasite. Docking studies performed in silica at the yeast Q(o) Site established a key ... -
Quo vadis external trade policy of the European Union? Exporting its own values or being a pointguard within the multilateral trading system?
(Faculty of European Studies, 2018)European Union (EU) has a very distinctive status within the multilateral trading system and thus is found worthwhile to examine in many respects. It has been not only a prominent actor and a contributor of the multilateral ...
