Güncel Gönderiler: Fakülteler
Toplam kayıt 2275, listelenen: 421-440
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University students' opinions on application of portfolio in higher education
(Elsevier Science Bv, 2015)Click here and insert your abstract text. The purpose of this study is to determine opinions of university students towards the use of portfolio as a tool of teaching and evaluation in higher education. Also aimed to reveal ... -
Synthesis and characterization of novel bio-based benzoxazines from gallic acid with latent catalytic characteristics
(Elsevier, 2019)A novel bio-based main chain benzoxazine with two oxazine rings and one phenolic hydroxyl group in the same aromatic ring was synthesized and characterized. The method includes the synthesis of polymeric benzoxazine ... -
Functionalization of Poly(oxindole biphenylylene) membranes by photoinduced thiol-yne click chemistry
(Elsevier, 2020)The modification of poly(oxindole biphenylylene) (POXI) membranes by photoinduced thiol-yne click approach is presented. Initially, a propargyl-functionalized porous poly(oxindole biphenylylene) (POXI-PG) membrane was ... -
Enzyme immobilization on polymeric microspheres containing Schiff base for detection of organophosphate and carbamate insecticides
(Elsevier, 2020)In this study, polymeric microsphere including Schiff base TrisPS-pyr and TrisPS-pyr-Pt(II) were obtained by condensation reaction for improve the enzymatic properties of acetylcholinesterase (AChE) and detect harmful ... -
Levels of Po-210 and Pb-210 in mussel and sediments in Candarli Gulf and the related dose assessment to the coastal population
(Pergamon-Elsevier Science Ltd, 2013)Po-210 and Pb-210 in mussel (Mytilus galloprovincialis) and sediment samples collected at Candarli Gulf during the period of 2010-2012 are presented and discussed. The activity concentrations of Po-210 and Pb-210 were ... -
Point Mutations at gyrA and gyrB Genes of Levofloxacin Resistant Helicobacter pylori Strains and Dual Resistance with Clarithromycin
(Clin Lab Publ, 2021)Background: Spontaneous point mutations in genes encoding gyrA/B subunits of DNA gyrase are responsible for fluoroquinolone resistance. We aimed to determine the clarithromycin and levofloxacin resistance phenotypically ... -
Variations of Po-210 and Pb-210 concentration in mussels (Mytilus galloprovincialis) from Didim and Izmir Bay (Turkish coast of Aegean Sea)
(Pergamon-Elsevier Science Ltd, 2013)In this study, the activity concentrations of Po-210 and Pb-210 were determined in mussels (Mytilus galloprovincialis) collected from Didim and Izmir Bay (Turkish coast of Aegean Sea) during the period of April 2006-March ... -
First - principles calculations on stability and mechanical properties of various ABO(3) and their alloys
(Elsevier Science Sa, 2018)In this study, we perform first principle calculations based on density functional theory (DFT) to obtain the ground state structural, elastic and dielectric properties of various ABO(3) type ceramics and their {A(x)A'((1-x))}BO3 ... -
Synthesis, characterization and comparative studies on the photophysical and photochemical properties of metal-free and zinc(II) phthalocyanines with phenyloxyacetic acid functionalities
(Pergamon-Elsevier Science Ltd, 2011)The synthesis and characterization of new peripherally and non-peripherally tetra-substituted metal-free and zinc(II) phthalocyanines with 2-, 3- and 4-phenyloxyacetic acid functionalities are described for the first time ... -
Effect of substituents on the orientation of octasubstituted copper(II) phthalocyanine thin films
(Elsevier Science Sa, 2012)Octasubstituted copper(II) phthalocyanines containing alkylthio-, alkyloxy-, (trioxyethylene)thio- and (trioxyethylene)oxy- substituents in peripheral positions have been synthesized and characterized using UV-vis, IR, and ... -
DETERMINATION OF Ni, Pb AND Cu IN PLANT AND SOIL SAMPLES TO MONITOR POLLUTION EXTENT: COMPARISON OF KIRKLARELI-ELAZIG CITIES, TURKEY
(Parlar Scientific Publications (P S P), 2018)The purpose of this article is to biomonitor the effects of pollution in Pinarhisar, Kirklareli, Turkey using plants. For this purpose, nickel (Ni), lead (Pb) and copper (Cu) concentrations in three plant species were ... -
On the Some Non Extandable Regular P-2 Sets
(Univ Putra Malaysia Press, 2018)Diophantine 3-tuples with property P-k, for k an integer, are sets of n positive integers such that product of any two of them by adding k is a square. In the present paper, we consider some regular P-k- triples and prove ... -
Highly singlet oxygen generative water-soluble coumarin substituted zinc(II) phthalocyanine photosensitizers for photodynamic therapy
(Pergamon-Elsevier Science Ltd, 2012)New tetra-non-peripherally and peripherally ethyl butyrate or butanoic acid and their sodium salts bearing coumarin substituted zinc(II) phthalocyanine complexes have been synthesized and characterized for the first time. ... -
Synthesis, photophysical, photochemical and electrochemical properties of crown ether bearing coumarin substituted phthalocyanines
(Elsevier Science Sa, 2012)Zinc (II), cobalt (II) and copper (II) phthalocyanines substituted at the peripheral (complexes 5, 6 and 7) and non-peripheral (complexes 8, 9 and 10) positions with 7,8-(15-crown-5)-3-(4-oxyphenyl)coumarin groups have ... -
Coumarino-12-crown-4 bearing phthalocyanine photosensitizers for singlet oxygen production
(Elsevier Science Sa, 2011)The synthesis, characterization, photophysical and photochemical properties of the new metal-free and zinc (II) phthalocyanines tetra-substituted at the peripheral (complexes 3a and 3b) and non-peripheral (complexes 4a and ... -
Novel phthalocyanines bearing 7-oxy-3-(3,5-difluorophenyl)coumarin moieties: Synthesis, characterization, photophysical and photochemical properties
(Elsevier Science Sa, 2015)Two novel phthalonitriles,7-(2,3-dicyanophenoxy)-3-(3,5-difluorophenyl) coumarin (2), 7-(3,4-dicyanophenoxy)-3-(3,5-difluorophenyl) coumarin (3), and corresponding zinc(II)-, indium(III) phthalocyanines were prepared. ... -
MGS-TES Spectra Suggest a Basaltic Component in the Regolith of Phobos
(Amer Geophysical Union, 2018)Plain Language Summary The origins of the Martian moons Phobos and Deimos have been the subjects of considerable debate. Visible and near-infrared spectra of these bodies are dark and nearly featureless, with red slopes ... -
Post modification of acetylene functional poly(oxindole biphenylylene) by photoinduced CuAAC
(Pergamon-Elsevier Science Ltd, 2018)A novel strategy to obtain side chain modified poly(oxindole biphenylylene) (PDXI) by photoinduced copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) click reaction is described. In the first step, an alkyne-functionalized ... -
Synthesis, characterization, spectroscopic and electrochemical properties of phthalocyanines substituted with four 3-ferrocenyl-7-oxycoumarin moieties
(Elsevier Science Sa, 2011)The synthesis, spectroscopic and electrochemical properties of the tetra-(3-ferrocenyl-7-oxycoumarin)substituted zinc (II) and cobalt (II) phthalocyanines (3 and 4) are reported for the first time. The synthesis of novel ... -
Determination of the effects of initial glucose on the production of alpha-amylase from Penicillium sp under solid-state and submerged fermentation
(Taylor & Francis Ltd, 2014)The effects of catabolite repression of initial glucose on the synthesis of alpha-amylase from Penicillium chrysogenum and Penicillium griseofulvum were investigated under solid-state fermentation (SSF) and submerged ...