Güncel Gönderiler: Fen Edebiyat Fakültesi
Toplam kayıt 1429, listelenen: 561-580
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Chemical composition and antimicrobial activity of the volatile of Gladiolus atroviolaceus boiss
(Chemical Publishing Co., 2012)In the present study, essential oil extracted by hydrodistillation from Gladiolus atroviolaceus Boiss. (Iridaceae) was analyzed by gas chromatography (GC) and GC-mass spectrometry (MS). A total of 52 compounds were identified, ... -
AC losses in coil wound from round wire coated by a superconducting layer
(IEEE, 2012)Numerical simulations have been performed in order to predict the behavior of a round wire covered by thin superconducting layer when exposed to AC magnetic field or transporting AC current, as well as for a solenoid coil ... -
Calculation of radiation attenuation coefficients, effective atomic numbers and electron densities for some building materials
(2012)Some building materials, regularly used in Turkey, such as sand, cement, gas concrete (lightweight, aerated concrete), tile and brick, have been investigated in terms of mass attenuation coefficient, effective atomic, ... -
Investigation of structural and optical properties of ZnO films co-doped with fluorine and indium
(Elsevier, 2012)Undoped ZnO film and ZnO films, which are co-doped with F and In (FIZO) at different concentrations, were synthesized by sol-gel technique and the effects of co-doping of F and In on structural and optical properties of ... -
Reduction, Mannich reaction, and antimicrobial activity evaluation of some new 1,2,4-triazol-3-one derivatives
(TÜBİTAK, 2012)Ethyl[4-arylmethyleneamino-3-(4-metylphenyl)-5-oxo-4,5-dihydro-1H -1,2,4-triazole-1-yl]acetates (3a-e and 10a-d) were obtained starting from 4-amino-2,4-dihydro-3H -1,2,4-triazol-3-ones (1 and 9) in 2 steps. The treatment ... -
Antimicrobial activity and a comparative essential oil analysis of Centaurea pulcherrima Willd. var. pulcherrima extracted by hydrodistillation and microwave distillation
(Taylor & Francis Online, 2012)The essential oils of Centaurea pulcherrima Willd. var. pulcherrima (Asteraceae) were isolated by hydrodistillation (HD) and a microwave distillation (MD), than characterised by GC-FID and GC-MS. A total of 58 and 57 ... -
Synthesis, characterization, spectral and electrical properties of peripherally tetratriazole-substituted phthalocyanines and its metal complexes
(Elsevier, 2012)The substituted [1,2,4]triazole 3 was obtained from the reaction between compound 1 and compound 2. Novel substituted phthalonitrile 5 was prepared by the substitution of the nitro group of 4-nitrophthalonitrile 4 with ... -
Heavy metal analysis around Murgul (Artvin) copper mining area of Turkey using moss and soil
(Elsevier, 2012)This research investigates heavy metal pollution around one of the most important mining areas in Turkey, the Murgul mining, by means of analyzing moss and soil samples collected in the neighborhood of the copper mining ... -
Synthesis of eperezolid-like molecules and evaluation of their antimicrobial activities
(Springer Link, 2012)3-Fluoro-4-(4-phenylpiperazin-l-yl)aniline (II) prepared from 3,4-difluoro nitrobenzene was converted to the corresponding Schiff bases (III) and (IV) by treatment with 4-methoxybenzaldehyde and indol-3-carbaldehyde, ... -
An investigation on the bacterial flora of Agriotes lineatus (Coleoptera: Elateridae) and pathogenicity of the flora members
(Elsevier, 2012)The wireworm Agriotes lineatus (L.) (Coleoptera: Elateridae) is a serious agricultural pest of various vegetables and fruits throughout the world. To find an effective and safe biological control agent against this pest, ... -
Purification and characterization of an extracellular lipase from Mucor hiemalis f. corticola isolated from soil
(Elsevier, 2012)We have screened 39 microfungi isolates originated from soil in terms of lipolytic activity. Out of all screened, a novel strain of Mucor hiemalis f. corticola was determined to have the highest lipase activity. The ... -
Microwave-assisted synthesis of some new benzylidenamino compounds and potentiometric determination of their pKa
(2012)A growing body of literature has shown the effectiveness of using microwaves in chemical reactions. The aim of this study is to demonstrate a rapid and highly efficient synthesis of some new benzylidenamino compounds (4a-f) ... -
Design and synthesis of some azole derivatives as potential antimicrobial agents
(Birkhauser Boston, 2012)Syntheses of 1,2,4-triazol-3-ones, 4a, 4b, and 5 were performed starting from ester ethoxycarbonylhyd-razones (1a, 1b) that were reported earlier. The treatment of triazole derivatives, 4a, 4b, and 5 with several sulfonyl ... -
Bacteria from Ips sexdentatus (Coleoptera: Curculionidae) and their biocontrol potential
(Wiley, 2012)Ips sexdentatus (Coleoptera: Curculionidae) is one of the most destructive pests of the spruce trees in Europe. In this study, we have isolated and characterized culturable bacteria from I. sexdentatus and tested their ... -
Antimicrobial and antiurease activities of newly synthesized morpholine derivatives containing an azole nucleus
(Birkhauser Boston, 2013)2-[6-(Morpholin-4-yl)pyridin-3-ylamino]acetohydrazide (4) was obtained starting from 6-morpholin-4-ylpyridin-3-amine (2) via the formation of ester (3) and then converted to the corresponding Schiff bases (5, 6) with the ... -
Identification of heavy metal origins related to chemical and morphological soil properties using several non-destructive X-ray analytical methods
(Kluwer Academic Publishers, 2013)Soils are complex mixtures of organic, inorganic materials, and metal compounds from anthropogenic sources. In order to identify the pollution sources, their magnitude and development, several X-ray analytical methods were ... -
Polarized-beam high-energy EDXRF in geological samples
(0-Belirlenecek, 2013)Certified reference materials (NIST 1645, BCR 143, IAEA 7, BCR 141, NIES-CRM-02, and IAEA 375) were used for determining the performance of a secondary target energy-dispersive X-ray fluorescence (EDXRF) spectrometer, ... -
Determination of trace elements in ashes of milk samples by using XRF technique
(Chemical Publishing Co., 2013)Energy dispersive X-ray fluorescence system has been used to determine the heavy metal ions present in cow's milk. Samples have been collected from farm and markets within the border of Kahramanmaras province, Turkey. An ... -
Experimental and computational studies on 4-[(3,5-dimethyl-1H-pyrazol-1-yl) methoxy]phthalonitrile and synthesis and spectroscopic characterization of its novel phthalocyanine magnesium(ii) and tin(ii) metal complexes
(Elsevier B.V., 2013)The molecular structure of the substituted phthalonitrile was analyzed crystallographically and compared with optimized geometric structure. The structural properties of the compound such as energy, vibrational frequency, ... -
The comparison of Grime's strategies of plant taxa in Hacı Osman Forest and Bafra Fish Lakes in the central Black Sea region of Turkey
(Turkiye Klinikleri, 2013)The main aim of this study was to compare Grime's strategies in 91 plant taxa occurring from the eastern to the western part of the central Black Sea region of northern Turkey (Samsun). To do this, 45 sample plots were ...
