Güncel Gönderiler: Fen Edebiyat Fakültesi
Toplam kayıt 1429, listelenen: 521-540
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Microbial energy production
(Elsevier Inc., 2018)Today's increasing energy needs and the environmental damage of fossil fuels have prompted humankind to seek new and sustainable energy sources. Besides solar energy, seas, oceans, and wind energy, the metabolic pathways ... -
Green protocol: Catalyst-free synthesis of 2-substituted benzimidazoles under ultrasound irradiation
(Science Reviews 2000 Ltd, 2018)The synthesis of 2-substituted benzimidazoles from the reaction of o-phenylenediamine and an imino ester hydrochloride with ultrasound irradiation is reported. The procedure has an eco-friendly and simple workup with good ... -
Comparison of elemental analysis for different kind of papers by using energy dispersive X-ray spectrometer
(Chemical Publishing Co., 2017)In this study, comparative analyses of different 27 brand papers widely used in Turkey as ashes of paper in the form of pellets. The white paper and photocopied paper have been analyzed by using the energy dispersive X-ray ... -
Age structure of the caucasian agama (Paralaudakia caucasia) from Elmadağ, Iğdır, Turkey: Preliminary data from small sample size
(Folium Ltd, 2017)Life history traits of lizard species, including agamid species, generally involve male-larger body size, but age of these species has not adequately been examined in each cohort. We thus conducted a skeletochronological ... -
Acethylcholinesterase inhibition, antibacterial and antioxidant properties of Diaryl oxalates
(Bentham Science Publishers B.V., 2017)Objective: The main study was to synthesize the diaryl oxalates containing pharmacophore groups like eugenol and guaiacol moieties, investigate antioxidant, antibacterial and acethylcholinesterase inhibitory properties and ... -
A spectroscopic study on new phthalonitrile derivative and its computational background: 4-[(4,5-Diphenyl-4H-1,2,4-triazol-3-yl)sulfanyl]benzene-phthalonitrile
(Elsevier B.V., 2017)Heterocyclic phthalonitrile derivatives are important precursors in synthesis of new photoactive phthalocyanine compounds. In this study, novel phthalonitrile compound bearing triazole moiety was synthesized and characterized ... -
Volatiles and antimicrobial activity of the essential oils of the mosses pseudoscleropodium purum, eurhynchium striatum, and urhynchium angustirete grown in Turkey
(ACG Publications, 2015)The chemical composition of the essential oils from all parts of Pseudoscleropodium purum, Eurhynchium striatum and Eurhynchium angustirete were analysed by GC-FID-MS. Sixty-five, thirty-four and seven compounds, accounting ... -
A new locality record of Pelias barani (Böhme et joger, 1983) from the Northeastern Anatolia
(Folium Ltd, 2016)Two female individuals of Baran’s Adder species Pelias barani were recorded in Tektaş village of Pazar, Rize (Turkey). These individuals were compared with other samples in the literature, and introduced them size and ... -
Altitude variation in the composition of essential oils, fatty acid methyl esters, and antimicrobial activities of two subspecies of primula vulgaris grown in Turkey
(Natural Product Incorporation, 2016)In this study, the changes caused by variation of altitude to the essential oils (EOs), fatty acid methyl esters (FAMEs), and antimicrobial activities of Primula vulgaris Huds. subsp. vulgaris (Pvv) and P. vulgaris Huds. ... -
Plant metabolomics and strategies
(Springer International Publishing, 2016)Plant metabolomics is the study of metabolic pathways and processes to understand how plants grow and carry out functions. Over the past years, there has been a switch to a more holistic view of metabolomes. Instead of ... -
Seasonal changes of macro-and microelements content in soils of green tea farming from rize (Turkey)
(Institute of Chemistry, Academy of Sciences of Moldova, 2016)During 2014 year, 60 soil samples at the point of 30 soil samples in the spring and 30 soil samples in autumn were taken from the localities of Findikli (41°16'14.40"N - 41°08'24.13"E), Pazar (41°10'50.06"N - 40°53'11.35"E) ... -
Differential inelastic scattering cross-section of silicon and gallium arsenide semiconductor crystals
(Chemical Publishing Co., 2016)Because of the extensive usage of silicon and gallium arsenide semiconductor crystals, the differential inelastic scattering cross-sections at 59.5 keV have been measured for various scattering angles changing from 120 to ... -
Bioactivity and enzyme inhibition properties of Stevia rebaudiana
(Bentham Science Publishers B.V., 2016)Objective: The main study was to evaluate the anti- inflammatory, anti-oxidant, and the gastro-protective properties of extracts of Stevia rebaudiana. In addition the purpose of the study was to investigate new, natural ... -
Variation in body size and age structure among three Turkish populations of the treefrog Hyla arborea
(Brill, 2012)To determine how climate factors influence age, body size and sexual size dimorphism (SSD) in the Mediterranean region, we generated data on age and body size of the European Treefrog, Hyla arborea, in three Turkish ... -
Chemical constituents and antimicrobial activity of the essential oil from vicia dadianorum extracted by hydro and microwave distillations
(2012)The aim of this research was to investigate the influence of extraction methods on yield and chemical composition of the essential oil of Vicia dadianorum Somm. & Lev. The volatiles of V. dadianorum have been isolated by ... -
Radioactivity and heavy metal concentrations of some commercial fish species consumed in the Black Sea Region of Turkey
(Elsevier Ltd, 2012)Marine fish is an important daily diet item for the people of Turkey. The Black Sea Region of Turkey was contaminated by the Chernobyl accident in 1986, a comprehensive study was planned and carried out to determine the ... -
Salicylic acid pretreatment induces drought tolerance and delays leaf rolling by inducing antioxidant systems in maize genotypes
(Springer, 2012)Salicylic acid (SA) acts as an endogenous signal molecule responsible for inducing abiotic stress tolerance in plants. In this study, the role of SA in improving drought tolerance in two maize cultivars (Zea mays L.) ... -
Patterns of distribution of tree frogs in Turkey based on molecular data
(Brill, 2012)Despite previous work on the phylogeny of Palearctic Hyla, several problems still exist regarding systematics of Hyla in Turkey. The systematics of tree frogs (Hyla orientalis and Hyla savignyi) in Turkey was studied using ... -
In vitro antioxidant and acidic properties of novel 4-(5-Methyl- 24hienylmethyleneamino)-4,5-dihydro-1H-l,2,4-triazol-5one derivatives. Synthesis and characterization
(Syscom 18 SRL, 2012)In the present study 3-alkyl(aryl)-4-amino-4,5-dihydro-1H-l,2,4-triazol-5- ones 2a-i reacted with 5-methylthiophene-2-carboxyaldehyde to afford the corresponding compounds 3a-i and the acetylation reactions of compounds ...
