Güncel Gönderiler: Fen Edebiyat Fakültesi
Toplam kayıt 1429, listelenen: 441-460
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Antimicrobial, cytotoxic, antiviral wffects, and apectroscopic characterization of metabolites produced by fusarium oxysporum YP9B
(ACG Publications, 2021)The goal of the work is to determine the bioactive pharmaceutical metabolites produced by the Fusarium oxysporum YP9B isolate. Ten new natural compounds were isolated from the ethyl acetate extract of the F. oxysporum YP9B ... -
New chlorogenic acid derivatives and triterpenoids from Scorzonera aucheriana
(The Scientific and Technological Research Council of Turkey-TUBİTAK, 2021)Chromatographic separation of n-hexane and ethyl acetate fraction of a crude methanol extract obtained from aerial parts of the Scorzonera aucheriana DC collected from Sivas province of Turkey yielded nine natural compounds; ... -
Gamma irradiation, thermal conductivity, and phase change tests of the cement-hyperbranched poly amino-ester-block-poly cabrolactone-polyurathane plaster-lead oxide and arsenic oxide composite for development of radiation shielding material
(Wiley, 2021)The work which has been done on cement-polymer composite based shielding materials was comprehensively described in the present article, the choice of the study presented here is based on the choice of the researches. The ... -
Comparative study of heavy metal concentration in eggs originating from industrial poultry farms and free-ange hens in Kosovo
(Hindawi, 2021)The aim of the present study was to determine the most significant heavy metal concentration in hen eggs, in particular to compare the heavy metal concentration in eggs originating from industrial poultry farms versus ... -
Heavy-Ion fusion reaction calculations: Establishing the theoretical frameworks for In-111 Radionuclide over the Coupled Channel Model
(MDPI, 2021)In this work, the production of I111n radionuclide has been investigated theoretically via heavy-ion fusion reactions of two stable nuclei: C37l+G74e, M26g+R85b, S30i+B81r, and C46a+C65u reactions. Fusion cross-sections, ... -
Kuzeydoğu Anadolu petrogliflerindeki bir grup dağ keçisi motifi
(İstanbul University Press, 2021)The Eastern Anatolia region, a high plateau, is exceptionally rich in paintings on rocks. Rock paintings in Ardahan, Kars, Erzurum, Erzincan, and Van-Hakkari mountainous region constitute a large part of this wealth. The ... -
Concentrations of metal residues in domestically produced and imported milk in Kosovo
(South African Journal of Animal Sciences, 2021)The aim of this study was to investigate the concentration of metal residues in cows??? milk and the health risks to humans from its consumption. In total 37 milk samples were analysed, namely 32 raw milk samples from ... -
Single-molecule-resolution ultrafast near-field optical microscopy via plasmon lifetime extension
(AIP Publishing, 2021)Metal nanostructures support plasmon oscillations on their surfaces, which normally decay very quickly. Nevertheless, the lifetime of these oscillations can be extended near a longer lifetime particle, e.g., a molecule. ... -
Design and microwave-assisted synthesis of a novel Mannich base and conazole derivatives and their biological assessment
(Walter de Gruyter, 2021)4-Amino-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (1) was converted to the corresponding Schiff base (2) by treatment with salicylaldehyde. 1,2,4-Triazoles were then converted to the corresponding Mannich bases containing ... -
Investigating medium and heavy mass heavy-ion fusion reactions and barrier distributions with coupled-channel analyzes
(Jagiellonian University Press, 2021)The fusion process is the effect of a one-dimensional barrier penetration model that incorporates scattering potential as a combination of Coulomb and proximity potentials. Heavy-ion fusion reactions were performed with ... -
Toxic efficacy of Cuscuta campestris Yunck. (Solanales: Convolvulaceae) and Lupinus albus L. (Fabales: Fabaceae) plant crude extracts against nymphs and adults of Orosanga japonica (Melichar, 1898) (Hemiptera: Ricaniidae) under laboratory conditions
(Entomological Society of Turkey, 2021)The planthopper, Orosanga japonica (Melichar, 1898) (Hemiptera: Ricaniidae), is an important agricultural pest of grapevine, kiwifruit and tea in Asia and in some countries of Eastern Europe. The efficacy of the crude ... -
Dynamic magnetic features of a mixed ferro-ferrimagnetic ternary alloy in the form of ABpC1−p
(Springer Heidelberg, 2021)In this work, we studied the dynamic magnetic features of a mixed ferro-ferrimagnetic ternary alloy in the form of AB(p)C(1-p). We also investigated the effect of Hamiltonian parameters on the system's dynamic magnetic ... -
Wong-Zakai method for stochastic differential equations in engineering
(Vinca Institute Nuclear Science, 2021)In this paper, Wong-Zakai approximation methods are presented for some stochastic differential equations in engineering sciences. Wong-Zakai approximate solutions of the equations are analyzed and the numerical results are ... -
Further remarks on group-2-groupoids
(Unıversitat Polıtecnıca Valencıa, 2021)The aim of this paper is to obtain a group-2-groupoid as a 2-groupoid object in the category of groups and also as a special kind of an internal category in the category of group-groupoids. Corresponding group-2-groupoids, ... -
Essential oil composition, antimicrobial and antioxidant activities of Salvia staminea
(2018)Volatile constituents of the essential oil which was obtained by hydrodistillation (HD) in a Clevengertype apparatus from the air-dried Salvia staminea Montbret & Aucher ex Bentham (Lamiaceae) collected from Bayburt (North ... -
The lowland meadow vegetation of the central Black Sea Region of Turkey
(2014)Türkiye'nin Orta Karadeniz Bölgesinde ova alanların çayır vejetasyonu Braun-Blanquet metodu veTWINSPAN kümeleme, CCA ve DECORANA ordinasyon yöntemleriyle analiz edilmiştir. Araştırmaalanında üç yeni bitki birliği tanımlanmıştır. ... -
Role of Mg doping in the structural, optical, and electrical characteristics of ZnO-based DSSCs
(2017)ZnO- and Mg-doped ZnO samples are prepared by spray pyrolysis on conducting glass substrates to fabricate ZnO-based dye-sensitized solar cells (DSSCs). In uences of Mg-doping content on the power conversion efficiencies ... -
A semi-Markovian renewal reward process with (g) distributed demand
(2020)We consider a classical semi-Markovian stochastic model of type (s, S) with Logistic distributed demand random variables. Logistic distribution is a member of special distribution class known as (g) that encounters in many ... -
Tragopogon abbreviatus (Asteraceae): a little-known species inferred from morphological and molecular analysis
(2020)Tragopogon porrifolius occurs in Turkey with 3 taxonomically confused subspecies: T. porrifolius subsp. eriospermus, T. porrifolius subsp. longirostris, and T. porrifolius subsp. abbreviatus. In the present paper, T. ... -
Synthesis and biological evaluation of a new series of 4-alkoxy-2-arylquinoline derivatives as potential antituberculosis agents
(2015)Three new series of 33 quinolone compounds, 2-(2-, 3-, and 4-fluorophenyl)-4-O-alkyl(C5−15) quinolines (7a– k, 8a–k, and 9a–k), were synthesized from 2-(2-, 3-, and 4-fluorophenyl)-2,3-dihydroquinolin-4(1H )-one (4, ...
