Güncel Gönderiler: Fen Edebiyat Fakültesi
Toplam kayıt 1429, listelenen: 141-160
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Spatiotemporal distribution of microplastics in true frogs (Ranidae: Pelophylax) populations from Turkiye
(Elsevier, 2023)Microplastics (MPs), which are of increasing concern in almost all ecosystems, continue to be an environmental threat. In the present study, the presence of MPs is investigated by using the gastrointestinal tracts (GITs) ... -
A new activated carbon-supported Pd-ZnO catalyst for Heck Cross-coupling reactions
(Elsevier, 2023)In this work, to develop catalysts for Heck-type coupling reactions, a hybrid ZnO-Pd nanocatalyst was fabricated on activated carbon sourced from polymer debris. Such techniques as transmission electron microscopy (TEM), ... -
Genetic status of hemidactylus turcicus (Linnaeus, 1758) from Çanakkale (Turkiye)
(Springer, 2023)Hemidactylus turcicus is a member of one of the most species-rich reptile genera and is known as an invasive species closely associated with humanized environments. Its phylogeography is often interpreted to be the result ... -
Hybrid number matrices
(2023)The aim of this study is to investigate some properties of hybrid number matrices. Firstly, we introduce hybrid numbers with some of their properties. Then we prove that any hybrid number has a 2 x 2 complex matrix ... -
Synthesis of new coumarin-C-3 benzimidazole hybrids and their urease inhibition studies
(Bentham Science Publications, 2023)A novel series of coumarin-benzimidazole hybrids were designed, synthesized, and extensively characterized using spectral data, including FT-IR, H-1-NMR, and C-13-NMR. Weatherburn's method was used to test new compounds' ... -
Tea-based biochar-mediated changes in cation diffusion homeostasis in rice grown in heavy metal (loid) contaminated mining soil
(Elsevier, 2023)Foreseeable future scenarios highlight the urgency of applying eco-safe avoidance methods or tolerance to heavy metal(loid) (HM) stress in agricultural production areas of contamination. The analyses show that the Ni, Mn, ... -
Bulk MgB2 superconductor for levitation applications fabricated with boron processed by different routes
(Elsevier, 2023)Bulk MgB2 discs were prepared by an in situ route from mixtures of magnesium and boron powders. The boron powders were produced by two methods. The first one consisted of a self-propagating high tem-perature magnesiothermic ... -
Responsible mechanisms for the restriction of heavy metal toxicity in plants via the co-foliar spraying of nanoparticles
(MDPI, 2023)Bamboo is nutritionally significant across the world because the shoots are high in calories and nutritional fiber but low in cholesterol. However, recent research has shown that bamboo shoots also contain a substantial ... -
Metabolite profiling of Althaea officinalis by HPLC-DAD-MS with in silico and in vitro analysis for therapeutic potential
(Springer, 2023)Althaea officinalis L. has been widely used traditionally as an herbal tea and for the treatment of cough, mucous membrane irritation, colds, and inflammation. Parts of the plant extracts were analyzed using HPLC-DAD and ... -
Regioselective syntheses of 2-oxopyridine carbonitrile derivatives and evaluation for antihyperglycemic and antioxidant potential
(Elsevier, 2023)A library of 2-oxopyridine carbonitriles 1-34 was synthesized by regioselective nucleophilic substitution reactions. In the first step, a one-pot multicomponent reaction yield pyridone intermediates. The resulting pyridone ... -
Phylogenetic analysis based on the ITS, matK and rbcL DNA barcodes and comparison of chemical contents of twelve Paeonia taxa in Turkiye
(Springer, 2023)BackgroudTwelve taxa of herbaceous Paeonia species were recorded in Turkiye. All definitions were performed morphologically and/or anatomically and there is no study based on DNA barcode sequences. Three barcode regions ... -
Dihydroisocoumarins and phenylglycosides from scorzonera longiana, their antimicrobial activities and molecular docking studies
(Wiley, 2023)Five new phenyl dihydroisocoumarin glycosides (1-5) and two known compounds (6-7) were identified from the butanol fraction of Scorzonera longiana. The structures of 1-7 were elucidated based on spectroscopic methods. ... -
Thermal conductivity and phase-change properties of boron nitride-lead oxide nanoparticle-doped polymer nanocomposites
(MDPI, 2023)Thermally conductive phase-change materials (PCMs) were produced using the crosslinked Poly (Styrene-block-Ethylene Glycol Di MethylMethacrylate) (PS-PEG DM) copolymer by employing boron nitride (BN)/lead oxide (PbO) ... -
Facile synthesis and characterization of CdS thin films doped by yttrium atoms
(Springer, 2023)A facile preparation and structural, optical and electrical characterization of undoped and Y-doped CdS thin films are demonstrated through spray pyrolysis changing doping concentration of yttrium atoms in CdS structure. ... -
CdSe thin films-based photodetector doped with Cu, In and Ga atoms: a comparative work
(Springer, 2023)The present work demonstrates a comparison of performance of Cu, In and Ga-doped CdSe thin films-based photodetectors. Structural, morphological, optical and electrical investigation of Cu, In and Ga-doped CdSe thin films ... -
The effect of nano-Pt/nano-SiC co-additions on superconducting properties of bulk MgB2
(Springer, 2023)This research presents a detailed analysis and discussion of the crystallographic, flux pinning mechanism, the microstructure and superconducting properties of nano-Pt/nano-SiC co-added (in different addition levels) bulk ... -
New pyrimidine-N-β-D-glucosides: synthesis, biological evaluation, and molecular docking investigations
(Scientific Technical Research Council Turkey, TÜBİTAK, 2023)In this study, syntheses of new pyrimidine-coupled N-beta-glucosides and tetra-O-acetyl derivatives were carried out. All glycoconjugates were investigated in comparison with known chemotherapeutic agents in terms of their ... -
An evaluation of the chemical composition and biological properties of Anatolian Royal Jelly, drone brood and queen bee larvae
(Springer, 2023)Therapeutic properties of products such as propolis, pollen and bee venom have been investigated before, but studies about the biological properties of drone brood (DBL) and queen bee larvae (QBL) are very limited. In ... -
Chalcone-based dipolar cycloaddition of novel heteroaromatic compounds: Their anticancer examination
(Elsevier, 2023)In this study, new chalcone-isoxazole-based hybrid derivatives (12, 13, 18, and 21) and chalcone-triazole hybrid molecules (26) were synthesized using the click chemistry approach. Among these hybrid molecules, 12, 13, 21, ... -
Comparing the biological properties and chemical profiling of chestnut bee pollen and bee bread collected from Anatolia
(Springer, 2023)Bee bread (BB) and bee pollen (BP) are accepted as functional food and considered in medical properties due to its important bioactive components. These bee products show different biological properties, but researches on ...
