Başlık için Fen Edebiyat Fakültesi listeleme
Toplam kayıt 1411, listelenen: 244-263
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Construction methods for implications on bounded lattices
(Kybernetika, 2019)In this paper, the ordinal sum construction methods of implications on bounded lattices are studied. Necessary and sufficient conditions of an ordinal sum for obtaining an implication are presented. New ordinal sum ... -
Construction methods for uni-nullnorms and null-uninorms on bounded lattice
(Kybernetika, 2019)In this paper, two construction methods have been proposed for uni-nullnorms on any bounded lattices. the difference between these two construction methods and the difference from the existing construction methods have ... -
The continuity in q of the Lupaş q-analogues of the Bernstein operators
(Elsevier, 2024)The Lupas q-analogue Rn,q of the Bernstein operator is the first known q-version of the Bernstein polynomials. It had been proposed by A. Lupas in 1987, but gained the popularity only 20 years later, when q-analogues of ... -
Contribution to chromosome numbers and phylogeny of Turkish Vincetoxicum Wolf (Apocynaceae, Asclepiadoideae)
(Museum Natl Histoire Naturelle, 2019)We report chromosome counts for ten taxa of Vincetoxicum sensu stricto (s. str.) (Apocynaceae) from Turkey (of which two are endemic), including the first chromosome counts for V. canescens subsp. pedunculata, V. funebre, ... -
Contribution to the knowledge of the syntaxonomy and ecology of macchie and forest vegetation in Paphlagonia, North Anatolia, Turkey
(Taylor & Francis, 2008)In this study, the vegetation of Boztepe Forest Protection Area (Unye/Ordu, Turkey), which is located at the middle part of Black Sea region, has been investigated from the phytosociological point of view. The vegetation ... -
Contribution to the phylogeny of Caucasian Nonea (Boraginaceae) inferred from nrDNA ITS and trnL-F data
(Magnolia Press, 2019)Nonea (Boraginaceae) with nearly 35 species was divided into four sections based on the shape of mericarpids and the position of the anthers in the corolla tube. Although several comprehensive taxonomic studies have been ... -
Contribution to the pollen morphology of Tragopogon (Asteraceae) in Turkey
(Magnolia Press, 2018)The pollen morphology of 25 Tragopogon L. taxa (including four subspecies and four varieties) distributed in Turkey was studied under light and scanning electron microscopy. It was observed that pollen grains of the examined ... -
Contribution to the taxonomy of little known Tragopogon species endemic to Turkey
(Wiley, 2021)In the present paper, two little-known species (T. olympicus Boiss. and T. pichleri Boiss.) endemic to Turkey are evaluated in terms of morphology based on numerous authentic and/or new collections. Additionally, the ... -
Contribution to the taxonomy of Turkish Scorzonera (Asteraceae) taxa based on vegetative anatomy
(Wiley, 2016)In the present study, the general stem, root and leaf anatomical features of 59 Scorzonera L. s.l. (Asteraceae) taxa collected from Turkey are presented and evaluated by cluster and principal coordinate analysis. Numerical ... -
Controllable growth and characterization of highly aligned ZnO nanocolumnar thin films
(Elsevier, 2017)We investigated the effects of growth conditions during magnetron sputtering on the structural, morphological, and optical properties of nanostructured ZnO thin films. Undoped ZnO thin films are deposited onto p-type Si ... -
A convenient method for the synthesis of 3,4-dihydroquinazolines from iminoester hydrochlorides via microwave irradiation
(Sage Publications Ltd, 2019)This is work presents a simple and practical strategy for the synthesis of 2-substituted-3,4-dihydroquinazolines in which the ring closure reaction of 2-aminobenzylamine with corresponding iminoester hydrochlorides via ... -
Conventional and microwave irradiated synthesis, biological activity evaluation and molecular docking studies of highly substituted piperazine-azole hybrids
(Elsevier Science Inc, 2017)Azole derivatives (3, 6) obtained starting from 1-(2-methoxyphenyl)piperazine were converted to the corresponding Mannich bases containing beta-lactame or flouroquinolone core via a one pot three component reaction. the ... -
Conventional and microwave irradiated synthesis, biological activity evaluation of highly substituted indole-triazole hybrids
(Elsevier, 2022)In the present study, a series of new indole-3-carbaldehyde embedded triazole derivatives have been synthesized. 4-{[(1E)-1H-indol-3-ylmethylidene]amino}-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (2) were converted to ... -
Conventional and microwave-assisted synthesis of novel 1,2,4-triazole derivatives containing tryptamine skeleton and evaluation of antimicrobial activity
(Bentham Science Publishing, 2021)1,2,4-Triazole-3-one (3) obtained from tryptamine was transformed to the corresponding carbox(thio)amides via several steps (6a-d). Their reaction with sodium hydroxide performed the 1,2,4triazole derivatives (7a-d). ... -
Conventional and microwave-assisted total synthesis, antioxidant capacity, biological activity, and molecular docking studies of new hybrid compounds
(Wiley, 2017)Thiomorpholine was converted to the corresponding 1,3,4-oxadiazole (4), arylidenehydrazide (5a-e), and 1,2,4-triazole (7a and, 7b) derivatives via the formation of hydrazide (3). Compounds 4 and 7 were next converted to ... -
Copies of the poem siret written by Muhammad in the XVth century-I
(Selcuk Univ, Fac Letters, 2019)"Siret", more commonly called "siyer", is the general name of the works on the life of the Prophet. At first, the word "siret", which was used for such works, was commonly used as "siyer". "Siret / siyer", whose first ... -
Coping with the un-natural: Tracking transcriptional activation and macromolecular profiles in Arabidopsis under microplastic exposure
(Elsevier, 2022)The ocean's microplastic (MP) burden reflects the ultimate sink, yet plants are the key receivers of all sizes. However, just a few studies have been published so far have solely examined single-sized commercial PS, PE, ... -
Copper(II) complexes with pyridine-2,6-dicarboxylic acid from the oxidation of copper(I) iodide
(Taylor & Francis Ltd, 2017)Via an oxidation reaction of Cu(I) iodide with pyridine-2,6-dicarboxylic acid (H2L) in DMF three copper(II) complexes, [(CH3)(2)NH2](2)[CuL2] (1), K-2 [CuL2]center dot H2L center dot H2O(2) and [Cu(L)(H2O)](n) (3), were ... -
Correlation between phenolic compounds and antioxidant activity of Anzer tea (Thymus praecox Opiz subsp caucasicus var. caucasicus)
(Elsevier Science Bv, 2014)Phenolic compounds of Thymus praecox Opiz subsp. caucasicus var. caucasicus were analyzed by high performance liquid chromatography equipped with an ultraviolet detector (HPLC-UV). Quercetin (co-eluting with luteolin) and ... -
Correlation coefficients of simplified neutrosophic multiplicative sets and their applications in clustering analysis
(Springer, 2021)The use of fuzzy sets, intuitionistic fuzzy sets and neutrosophic sets can often handle with real-life problems that contain incomplete and uncertain information. The 0-1 scale is used to deal with such information which ...
