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Now showing items 1291-1300 of 1474
Molecular modeling study on the relative stabilities of the flotation products for arsenic-containing minerals: dixanthogens and arsenic(III) xanthates
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2005)
The interactions of As(III) ion with C2H5OCS2- and C2H5SCS2-, known as the most popular collector ions, were studied by density functional theory (DFT) at the B3LYP/6-31G** level in connection with the arsenic-containing ...
Rare earth double sulfates from pre-concentrated bastnasite
(ELSEVIER SCIENCE BV, 2008)
A mixture of rare earth double sulfates was produced from a Turkish bastnasite-containing pre-concentrate (low grade concentrate) by sulfuric acid baking, subsequent water leaching and precipitation with sodium sulfate. ...
The evaluation of the attitudes of science teacher candidates towards chemistry lesson
(HACETTEPE UNIV, 2007)
The aim of this study is to determine the science teacher candidates' attitude towards chemistry, which is among the field lessons, and to search whether there is a relation between the attitude and the academic success. ...
Pullback mode dragline stripping in dipping coal seam
(IMPERIAL COLLEGE PRESS, 2002)
This study presents the results of a computer-based model developed for analysing the pit geometry formed when a dragline operates in pullback mode. Basically, three spoiling procedures are modelled for a flat or an inclined ...
Effect of ketanserin administration on intraocular pressure
(KARGER, 2001)
Purpose: We evaluated the effect of oral single-dose (20 mg) ketanserin on intraocular pressure (IOP) in normotensive and hypertensive eyes. Methods: This study included 15 healthy volunteers and 16 patients with ocular ...
Extra dimensions in photon-induced two lepton final states at the CERN LHC
(AMER PHYSICAL SOC, 2009)
We discuss the potential of the photon-induced two lepton final states at the LHC to explore the phenomenology of the Kaluza-Klein tower of gravitons in the scenarios of the Arkani-Hamed, Dimopoulos, and Dvali model and ...
Stimulation of epithelial cell matrix metalloproteinase (MMP-2,-9,-13) and interleukin-8 secretion by fusobacteria
(WILEY-BLACKWELL, 2008)
Background/aim: Bacterial pathogens involved in periodontal diseases exert their destructive effects primarily by stimulating the host cells to increase their secretion of proinflammatory cytokines and matrix metalloproteinases ...
Effects of contrast media on the hepato-pancreato-biliary system
(W J G PRESS, 2009)
AIM: To determine the effects of high osmolarity contrast media (HOCM) and iso-osmolar contrast. media (CM) application, with or without pressure, on hepato-pancreato-biliary (HPB) system. METHODS: Sixty rats were divided ...
Platinum-group element, stable isotope, and fluid inclusion investigation of the ultramafic rock-hosted Gunes-Sogucak Ni-Cu-sulfide mineralization in the Gunes ophiolite, East-Central Turkey
(TAYLOR & FRANCIS INC, 2007)
Cunes-Sogucak Ni-Cu-sulfide mineralization in the Divrigi district of Sivas Province is genetically related to I.ate Cretaceous ultramafie rocks. Disseminated mineralization is scattered through the ultramafic rocks, whereas ...
Voltammetric and drift spectroscopy investigation in dithiophosphinate-chalcopyrite system
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004)
The mechanism of dithiophosphinate (DTPI) adsorption on chalcopyrite was investigated by diffuse reflectance Fourier transformation (DRIFT) spectroscopy and by cyclic voltammetry (CV) at various pHs. CV experiments showed ...