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Photoionization cross-section and binding energy of donor impurities in GaAs, Ge and Si quantum wires with infinite barriers
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2009)
Within the effective-mass approximation, we have investigated the binding energies of donor impurities as a function of the wire dimensions and the photoionization cross-section for a hydrogenic donor impurity placed on ...
A Comparison of the Mathematical Skills of First Graders with and without Preschool Education
(EDAM, 2009)
The purpose of this study is to compare the mathematical skills of first grade elementary students who had or had not taken preschool education. The sample of the study consists of 150 elementary students, those with and ...
Dependence of film thickness on the structural and optical properties of ZnO thin films
(ELSEVIER SCIENCE BV, 2009)
ZnO thin films are prepared on glass substrates by pulsed filtered cathodic vacuum arc deposition (PFCVAD) at room temperature. Optical parameters such as optical transmittance, reflectance, band tail, dielectric coefficient, ...
Periodontal Healing of Marginal Flap Versus Paramarginal Flap in Palatally Impacted Canine Surgery: A Prospective Study
(W B SAUNDERS CO-ELSEVIER INC, 2009)
Purpose: The aim of the present study was to compare the influence of 2 mucoperiosteal flaps, marginal and paramarginal, on the periodontal healing of adjacent maxillary teeth after extraction of palatally impacted canines. ...
Determining the factors affecting the consumers' willingness to pay higher prices for genetically unmodified products Tomato case study in Turkey
(EMERALD GROUP PUBLISHING LIMITED, 2009)
Purpose - The purpose of this paper is to determine the factors affecting the consumers' willingness to pay higher prices for genetically unmodified products. Design/methodology/approach - Tomato was selected as a model ...
Recovery of copper by LIX 984N-C from electroplating rinse bath solution
(ELSEVIER SCIENCE BV, 2009)
Development of a complete hydrometallurgical process at the laboratory scale for recovering copper from the copper electroplating second rinse bath solution containing similar to 2.5 g/L copper (CESRBS) by solvent extraction ...
Landslide susceptibility mapping using frequency ratio, logistic regression, artificial neural networks and their comparison: A case study from Kat landslides (Tokat-Turkey)
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
The purpose of this study is to compare the landslide susceptibility mapping methods of frequency ratio (FR), logistic regression and artificial neural networks (ANN) applied in the Kat County (Tokat-Turkey). Digital ...
Rho-kinase inhibitors Y-27632 and fasudil prevent agonist-induced vasospasm in human radial artery
(CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS, 2009)
Radial artery (RA) vasospasm remains a potential cause of early graft failure after coronary artery bypass graft surgery, despite pretreatment with alpha-adrenergic or calcium channel blockers. Our aim was to investigate ...
The early Upper Paleolithic occupations at Ucagizli Cave (Hatay, Turkey)
(ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2009)
This paper summarizes results from excavations at Ucagizli Cave (Hatay, Turkey) between 1999 and 2002 and 2005. This collapsed karstic chamber contains a sequence of early Upper Paleolithic deposits that span an interval ...
Dramatic oral findings belonging to a pica patient: A case report
(WILEY, 2009)
Pica is a compulsive eating of non-nutritive substances and can have serious medical implications. The causes are not known, but the symptom is often associated iron-deficiency. Pica is an under-diagnosed problem. Although ...