Yayın tarihi için Fen Fakültesi listeleme
Toplam kayıt 1146, listelenen: 161-180
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Heavy metal levels in two fish species Leuciscus cephalus and Lepomis gibbosus
(Elsevier Sci Ltd, 2007)The concentrations of heavy metals (Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn) were measured in muscle, gill and liver of two fish species (Leuciscus cephalus and Lepomis gibbosus) caught from Saricay, South-West Anatolia. Levels of ... -
Development of a microbial biosensor based on carbon nanotube (CNT) modified electrodes
(Elsevier Science Inc, 2007)Pseudomonas putida DSM 50026 cells were used as the biological component and the measurement was based on the respiratory activity of the cells estimated from electrochemical measurements. The cells were immobilised on ... -
Improved salt tolerance of melon (Cucumis melo L.) by the addition of proline and potassium nitrate
(Pergamon-Elsevier Science Ltd, 2007)A pot experiment was carried out under glasshouse conditions with melon (Cucumis melo) cv. "Tempo F1" in a mixture of peat, perlite and sand (1:1:1) to investigate the effects of external proline and potassium nitrate ... -
Antioxidant activity of stem and root extracts of Rhubarb (Rheum ribes): An edible medicinal plant
(Elsevier Sci Ltd, 2007)The antioxidant activity of chloroform and methanol extract of roots and stems of Rhubarb (Rheum ribes L.), which are used for medicinal purposes and also its fresh stems and petioles are consumed as vegetable, was studied. ... -
Antioxidant abietane diterpenoids from Salvia barrelieri
(Elsevier Sci Ltd, 2007)The root extract of endemic Algerian Salvia species Salvia barrelieri Ettling and its diterpenoids were investigated for potential antioxidant activity. From its acetone extract, a new natural abietane diterpenoid ... -
Examination of performance of glassy carbon paste electrode modified with gold nanoparticle and xanthine oxidase for xanthine and hypoxanthine detection
(Elsevier, 2007)A composite electrode was prepared by modifying glassy carbon microparticles with gold nanoparticles (Au-nps) and xanthine oxidase enzyme (XOD) for xanthine (X) and hypoxanthine (Hx) detection. After the optimization of ... -
Electronic aspects of the martensitic transition in Ni-Mn based Heusler alloys
(Elsevier, 2007)The martensitic transformation temperature Ms depends linearly on the valence electron concentration for Ni-Mn-X Heusler systems where X is a group III-group V element. However, the slopes of the linearity are different ... -
A new flavone from antioxidant extracts of Pistacia terebinthus
(Elsevier Sci Ltd, 2007)Acetone and methanol extracts of the fruits of Pistacia terebinthus L. subsp. terebinthus L. were studied for their antioxidant activity by investigating their total phenolic and flavonoid contents, P-carotene bleaching ... -
New perylene derivative dyes for dye-sensitized solar cells
(Elsevier, 2007)We have studied the influence of the spacer alkyl chain length of perylenemonoimide (PMI) dyes on the device performance in dye-sensitized solar cells (DSSCs). We observed that the dyes with longer and brunched alkyl chains ... -
A Taylor method for numerical solution of generalized pantograph equations with linear functional argument
(Elsevier Science Bv, 2007)This paper is concerned with a generalization of a functional differential equation known as the pantograph equation which contains a linear functional argument. In this paper, we introduce a numerical method based on the ... -
Decolourization and removal of some organic compounds from olive mill wastewater by advanced oxidation processes and lime treatment
(Springer Heidelberg, 2007)Background. Olive mill wastewater (OMW) generated by the olive oil extracting industry is a major pollutant, because of its high organic load and phytotoxic and antibacterial phenolic compounds which resist biological ... -
Comparative effects of various salicylic acid derivatives on key growth parameters and some enzyme activities in salinity stressed maize (Zea mays L.) plants
(Pakistan Botanical Soc, 2007)Salicylic acid, 5-Sulfo Salicylic acid and Acetylsalicylic acid are Salicylic acid derivatives. They differ in their substitution on the benzene ring and m ay have different effects on plant 0 in membranes, The effects of ... -
Spectrophotochemical and electrochemical characterization of perylene derivatives adsorbed on nanoporous metaloxide films
(Edp Sciences S A, 2007)Electrochemistry of perylene imide and anhydride derivatives adsorbed on semiconductor TiO2 (NT) and insulator Al2O3 (NA) metal oxide films were presented. Adsorption rates on metal oxide surface are observed to be strongly ... -
Design and construction of uniform glow discharge plasma system operating under atmospheric condition
(Amer Inst Physics, 2007)The design of a uniform glow discharge plasma system operating without vacuum is presented. A full-bridge switching circuit was used to switch the transformers. The primary windings of transformers were connected in parallel, ... -
Inhibition of quorum sensing-regulated behaviors by Scorzonera sandrasica
(Springer, 2007)Many Gram-negative bacteria use N-acyl homoserine lactone signal molecules to monitor their own population density and coordinate gene regulation in a process called quorum sensing (QS). Increasing evidence implies that ... -
Measurement and comparison of complex impedance of silicon p-i-n photodiodes at different temperatures
(Maik Nauka/Interperiodica/Springer, 2007)The dark alternating current (ac) parameters of BPW34 and BPW41 (Vishay-Telefunken) silicon p-i-n photodiodes arc measured and compared at different temperatures using the impedance spectroscopy technique. The impedance ... -
An engineered second disulfide bond restricts lymphotactin/XCL1 to a chemokine-like conformation with XCR1 agonist activity
(Amer Chemical Soc, 2007)Chemokines adopt a conserved tertiary structure stabilized by two disulfide bridges and direct the migration of leukocytes. Lymphotactin (Ltn) is a unique chemokine in that it contains only one disulfide and exhibits ... -
Comparative studies for the determination of uranyl ion adsorption onto Interpenetrating Polymer Networks (IPNs)
(Springer, 2007)The adsorption of uranyl ions from aqueous solutions was studied by using three different measurement techniques. Results obtained by gamma-spectrometry, UV-visible spectrophotometry and gravimetry have been compared. It ... -
Squark pair production in the MSSM with explicit CP violation
(Amer Physical Soc, 2007)We analyze effects of the CP-odd soft phases in the MSSM on the pair productions of colored superpartners in pp collisions at the LHC energies. We find that, among all pair-production processes, those of the scalar quarks ...
