Güncel Gönderiler: Scopus İndeksli Yayınlar Koleksiyonu
Toplam kayıt 6221, listelenen: 3381-3400
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An efficient algorithm for solving multi-pantograph equation systems
(Pergamon-Elsevier Science Ltd, 2012)In this paper, we present a numerical approach for solving the system of multi-pantograph equations with mixed conditions. This system is usually difficult to solve analytically. By expanding the approximate solutions by ... -
TRANSFORMATION OF A CONTINUOUS TO A DISCRETE VARIABLE: AN APPLICATION OF THE ORDERED LOGIT MODEL TO EXAMINE EFFECTS OF EDUCATION ON INCOME IN TURKEY
(Hacettepe Univ, Fac Sci, 2012)The aim of this study is to put forward income differences for Turkey according to the ordered logit and human capital models. For this reason, data of the Budget Survey between 2002 and 2006 by TurkStat were used. The ... -
Efficient pathway for CO2 transformation to cyclic carbonates by heterogeneous Cu and Zn salen complexes
(Elsevier Science Sa, 2012)A series of silica supported Salen type Zn(II) and Cu(II) complexes were prepared and characterized. The obtained materials were characterized by X-ray diffraction (XRD), sorption measurement (BET), Fourier transform ... -
Effect of blend ratio on poly(p-phenylene-ethynylene)-alt-poly (p-phenylene-vinylene) polymer solar cell
(Elsevier, 2012)We investigated the effect of the amount of phenyl C-61 butyric acid methyl ester (PCBM) on anthracene-containing poly(p-phenylene-ethynylene)-alt-poly(p-phenylene-vinylene) (PPE-PPV) polymer (AnE-PVstat) solar cells. The ... -
Charge carrier mobility, photovoltaic, and electroluminescent properties of anthracene-based conjugated polymers bearing randomly distributed side chains
(Wiley, 2012)This article reports on the synthesis, characterization, and properties of various anthracene-containing poly (p-phenylene-ethynylene)-alt-poly(p-phenylene-vinylene) (PPE-PPV) polymers (AnE-PVs) bearing statistical ... -
Anticholinesterase and antioxidant activities of Savoury (Satureja thymbra L.) with identified major terpenes of the essential oil
(Elsevier Sci Ltd, 2012)Satureja thymbra was used as a spice in Anatolia and Greece. The essential oil and the methanol extract of Satureja thymbra were evaluated for cholinesterase inhibitory effects against acetylcholinesterase and butyrylcho ... -
4-Butoxy-N '-[1-(4-methylphenyl)ethyl-idene]benzohydrazide
(Int Union Crystallography, 2012)The molecule of the title compound, C20H24N2O2, exists in a trans conformation with respect to the C N bond. The dihedral angle between the benzene rings is 79.0 (1)degrees. In the crystal, N-H center dot center dot center ... -
Can serum ferritin, vitamin B-12 and folic acid levels affect serum screening tests during pregnancy?
(Informa Healthcare, 2012)Objective: To examine the relation of serum folate, vitamin B-12 and ferritin levels to 1st and 2nd trimester serum screening markers. Methods: Fetal crown-rump length (CRL), nuchal translucency (NT), and first and second ... -
Performance comparison of a double-axis sun tracking versus fixed PV system
(Pergamon-Elsevier Science Ltd, 2012)In the present study, performance results of two double axis sun tracking photovoltaic (PV) systems are analyzed after one year of operation. Two identical 7.9 kWp PV systems with the same modules and inverters were installed ... -
First-trimester reference ranges for decidual thickness and its relation to progesterone levels
(Walter de Gruyter & Co, 2012)Aims: The present study aimed to provide normal reference ranges for decidual thickness measured ultrasonographically in healthy first-trimester pregnancies and to evaluate whether there was a relationship between decidual ... -
Complications of endoscopic surgery of the pituitary adenomas: analysis of 570 patients and review of the literature
(Springer, 2012)Endoscopic transsphenoidal surgery is emerging as a minimally invasive and maximally effective procedure for pituitary adenomas. In this report we analyzed the complications in 624 procedures of endonasal transsphenoidal ... -
Confined deep water system development on the accretionary wedge (Miocene, Kahramanmaras Foreland Basin, S turkey)
(Elsevier Science Bv, 2012)According to theoretical studies, the foreland basin consists of: accretionary wedge (including wedge top or piggyback basin), foredeep, forebulge and backbulge depozones. All of them are parallel to the orogenic belts of ... -
A numerical approximation based on the Bessel functions of first kind for solutions of Riccati type differential-difference equations
(Pergamon-Elsevier Science Ltd, 2012)In this study, a collocation method based on the Bessel functions of first kind is given for the approximate solutions of the Riccati differential-difference equations under the mixed condition. The method is presented ... -
Metastability effects in hydrogenated microcrystalline silicon thin films investigated by the dual beam photoconductivity method
(Elsevier Science Bv, 2012)Metastability effects in microcrystalline silicon (mu c-Si:H) thin films have been investigated using dark conductivity, sigma(D), photoconductivity, sigma(ph), and sub-bandgap absorption methods. Nitrogen and inert gasses ... -
Chemical Constituents and Antimicrobial Activity of the Leaves of Eucalyptus (Eucalyptus camaldulensis Dehnh.), An Endemic Plant from West Anatolia
(Dr M N Khan, 2012)The extracts of methanol water, hexane and chloroform eucalyptus leaves (Eucalyptus camaldulensis Dehnh.) were screened in vitro for their antimicrobial activity against some pathogenic gram negative, gram positive bacteria ... -
Phytochemical Analysis and Antimicrobial Activity of Different Extracts of Fig Leaves (Ficus carica L.) from West Anatolia against some Pathogenic Microoorganisms
(Dr M N Khan, 2012)The aim of the study was to investigate phyto chemical compoundsof fig leaves and antimicrobial activity of different extracts. The extract of ethanol, methanol, aqueous fig leaves (Ficus carica L.) were screened in vitro ... -
In-vitro Antimicrobial Activities of Different Extracts of Grapevine Leaves (Vitis vinifera L.) from West Anatolia against some Pathogenic Microorganisms
(Dr M N Khan, 2012)The extract of ethanol, methanol, aqueous grapevine leaves (Vitis vinifera L.) were screened in vitro for their antimicrobial activity against Gram-positive, Gram-negative bacteria and one yeast. Disk diffusion method was ... -
Effects of Dietary Protein and Lipid Levels on Growth Performances of Two African Cichlids (Pseudotropheus socolofi and Haplochromis ahli)
(Central Fisheries Research Inst, 2012)Effects of experimental diets with varying protein and lipid levels on weight gain (WG), specific growth rate (SGR), survival rate (SR), feed conversion rate (FCR), hepatosomatic and viscerosomatic indices (HSI and VSI) ... -
EXPLORING PRESTIGE AND STATUS ON DOMESTIC DESTINATIONS: THE CASE OF ALGARVE
(Pergamon-Elsevier Science Ltd, 2012)This study examines the influence of prestige motivations on return intentions to a domestic destination, throughout a order probit model. A representative sample of Portuguese tourists in Algarve was used. Results indicate ... -
Is there any relation between umbilical artery and vein diameter and estimated fetal weight in healthy pregnant women?
(Springer Japan Kk, 2012)The aim of this study was to investigate the relation between umbilical vessel diameter and estimated fetal weight (EFW) and other fetal biometric parameters, and to assess the role of umbilical vessel diameter in prediction ...
