Erişim şekli için "info:eu-repo/semantics/closedAccess" Fen Edebiyat Fakültesi listeleme
Toplam kayıt 958, listelenen: 41-60
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Anti-reflective effect of CeO2 thin films produced by sol-gel method on crystalline silicon solar cells
(Springer, 2023)In this study, considering the good optical properties of CeO2 thin films, their anti-reflective effect on crystalline silicon solar cells was investigated. First molarity and then coating speed optimizations were carried ... -
Anticancer evaluation of a manganese complex on HeLa and MCF-7 cancer cells: design, deterministic solvothermal synthesis approach, Hirshfeld analysis, DNA binding, intracellular reactive oxygen species production, electrochemical characterization and density functional theory
(Taylor & Francis Inc, 2020)Herein, a deterministic solvothermal strategy was employed to synthesize an efficient anticancer agent 'cis-dichlorobis(1,10-phenanthroline)manganese(II)' (Mn(phen)(2)Cl-2). A single-crystal X-ray diffraction analysis ... -
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 ... -
Antimicrobial activity and analyses of six Geranium L. species with headspace SPME and hydrodistillation
(Taylor & Francis Ltd, 2016)A solid phase microextraction (SPME) method with gas chromatography-mass spectrometry (GC-MS) was used for analyses of the volatile compounds of six Geranium species; G. asphodeloides, G. psilostemon, G. purpureum, G. ... -
Antimicrobial activity and chemical composition of the essential oil from Campanula glomerata L. subsp. hispida (Witasek) Hayek
(RTEÜ, Fen - Edebiyat Fakültesi, Biyoloji Bölümü, 2012)The volatile components of the essential oil from Campanula glomerata L. subsp. hispida (Witasek) Hayek was analyzed by GC and GCMS. Forty-eight compounds representing 89.0 % of the total oil were characterized and the ... -
Antimicrobial activity and volatile constituents of omphalodes cappadocica (Willd.) DC.
(2011)The composition of the essential oil isolated by hydrodistillation from Omphalodes cappadocica (Willd.) DC. (Boraginaceae) collected from 'Of', a town in Trabzon, was determined by GC-FID and GC-MS. Sixty components were ... -
Antimicrobial activity of Bacillus strains isolated from spring water and a novel bacteriocin: RS108
(2013)The aim of this research was to investigate the bacteriocins produced by Bacillus strains isolated from the spring water of Rize, in Turkey. Bacillus cereus RS108 was identified by both conventional and molecular methods, ... -
Antimicrobial susceptibility and molecular characterization of multidrug-resistant acinetobacter baumannii isolated in an university hospital
(Ankara Microbiology Soc, 2016)Acinetobacter baumannii, an aerobic, non-motile, gram-negative bacterium is an important nosocomial pathogen which shows resistance to the most antibiotics. Carbapenems are the most commonly used antibiotics for the treatment ... -
Antiproliferative effect of ornithogalum balansae on human cancer cell lines
(Indian Pharmaceutical Assoc, 2020)The purpose of this study was to investigate the antiproliferative effect of the methanol and ethyl acetate extracts of Ornithogalum balansae flower and bulb against normal ARPE-19 cell line and cancer cell lines, A549, ... -
A aonvenient synthesis of Bisbenzimidazoles from iminoester hydrochlorides Via Microwave Technique
(Wiley-Blackwell, 2016)A simple and practical method has been developed for the synthesis of bisbenzimidazoles. Iminoester hydrochlorides of phenylacetic acids were used as intermediates in this reaction with 3,3'-diaminobenzidine under microwave ... -
Application of phthalocyanine complexes of Cu(II), Co(II), Ni(II), and Zn(II) as catalysts in the transfer hydrogenation of acetophenone and its derivatives
(Elsevier, 2024)In this study, tetra substituted metallophthalocyanines (M: Ni, Zn, Co, and Cu) containing imine and azo groups were synthesized using microwave irradiation. The structures of all complexes have been totally characterized ... -
Assessing pollution levels and health effects of heavy metals in sediments around Cayeli copper mine area, Rize, Turkey
(Bellwether Publishing, Ltd., 2021)Heavy metal concentrations of Mn, Cr, Fe, Ni, Cu, Zn, Cd and Pb in sediment samples collected from 12 stations in the Black Sea coast, Buyukdere and Sabuncular streams around Cayeli copper mine area in Rize, Turkey were ... -
Assessment of human health risk from heavy metals levels in water and tissues of two trout species (Oncorhynchus mykiss and Salmo coruhensis) from the Frtna and Guneysu Rivers in Turkey
(Taylor & Francis Inc, 2017)Human health risks were evaluated from consumption of heavy metal contaminated fish from the Firtina and Guneysu Rivers in Rize. the study was aimed to assess heavy metal load in water and two fish species. the potential ... -
Assessment of metal concentrations (Cu, Zn, and Pb) in seawater, sediment and biota samples in the coastal area of Eastern Black Sea, Turkey
(Pergamon-Elsevier Science Ltd, 2017)This study investigated the contents of Cu, Zn and Pb in seawater, sediment, different shell sizes of mussel (Mytilus galloprovinciaIis) and sea snail (Rapana venosa) samples collected from four different provinces of the ... -
The assessment of radioactivity and radiological hazards in soils of Bolu province, Turkey
(Taylor & Francis Ltd, 2019)The radioactivity levels in soil samples of Bolu province of north-western Turkey have been determined. There has been no information about radioactivity measurement reported in soil samples in Bolu province so far. For ... -
Assessment of radiological levels at schools in trabzon, turkey
(Sage Publications, 2013)In this study, a survey on environmental radioactivity in 16 high schools located in north eastern region of Turkey (the black sea region, province of Trabzon) was carried out. Indoor air radon (222Rn) concentrations were ... -
Asymptotic formulations of the eigenvalues and eigenfunctions for a boundary value problem
(Wiley-Blackwell, 2013)In this work, a discontinuous boundary-value problem with retarded argument that contains a spectral parameter in the transmission conditions at the point of discontinuity is investigated. We obtained asymptotic formulas ... -
The ATPase activity of the G2alt gene encoding an aluminium tolerance protein from Anoxybacillus gonensis G2
(Springer, 2011)The G2ALT gene was cloned and sequenced from the thermophilic bacterium Anoxybacillus gonensis G2. The gene is 666 bp long and encodes a protein 221 amino acids in length. The gene was overexpressed in E. coli and purified ... -
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 ... -
Beam dynamic studies at accelerator system of gun for a self-amplified spontaneous emission free electron laser project
(Elsevier, 2021)One of the important factors in high radiation generation facilities is the production of a high quality electron beam. To do that, the requirements of an optical electron source, such as current, radiation emission, etc. ...