Başlık için Fen Edebiyat Fakültesi listeleme
Toplam kayıt 1411, listelenen: 844-863
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Natural radioactivity in ceramic tiles and associated radiological hazards
(Ijrr-Iranian Journal Radiation Res, 2019)Background: the natural radioactivity levels in ceramic tiles produced in Turkey were determined and the related radiological hazards were assessed. Materials and Methods: the natural radioactivity levels (Ra-226, Th-232 ... -
New 1,3,4-thiadiazol derivatives: Synthesis, computational study and X-Ray
(Elsevier, 2020)In this study, 4-hydroxyphenyl-3H-1,2,4-triazol-3-one derivatives (la-d), cyanomethoxyphenyl-3-alkyl/aryl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-acetonitriles (2a-d) and bis amino-1,3,4-thiadiazol-5-alkyl/aryl-2,4-dihydro-3H ... -
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), ... -
A new approach on electromagnetism with dual number coefficient octonion algebra
(World Scientific Publ Co Pte Ltd, 2016)Dual number coefficient octonion (DNCO) is one of the kind of octonion, it has 16 components with an additional dual unit epsilon. Starting with DNCO algebra, we develop the generalized electromagnetic field equations of ... -
New chalcone derivatives with Schiff base-thiophene: Synthesis, biological activity, and molecular docking studies
(Maik Nauka/Interperiodica/Springer, 2019)New thiophene chalcones 3, 6 and thiophene Schiff base-chalcone derivatives 4a-4d, 7a-7d are synthesized. Structures of the compounds are confirmed by H-1 and C-13 NMR, and IR spectra. According to antimicrobial and ... -
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; ... -
A new DNA polymerase i from Geobacillus caldoxylosilyticus TK4: Cloning, characterization, and mutational analysis of two aromatic residues
(Springer, 2009)DNA polymerase I gene was cloned and sequenced from the thermophilic bacterium Geobacillus caldoxylosilyticus TK4. The gene is 2,634 bp long and encodes a protein of 878 amino acids in length. The enzyme has a molecular ... -
A new fluorescent "turn-off" coumarin-based chemosensor: Synthesis, structure and Cu-selective fluorescent sensing in water samples
(Springer/Plenum Publishers, 2017)We report the synthesis and characterization two coumarin-based fluorescence probes, N'-{[7-(diethylamino)-2-oxo-2H-chromen-3-yl]carbonyl}pyridine-3-carbohydrazide (3) and N'-benzoyl-7-(diethylamino)-2-oxo-2H-chromene-3- ... -
A new green protocol for the synthesis of 2-substituted perimidines from hydrazones under catalyst- and solvent-free conditions
(Bulgarian Academy of Sciences, 2018)A new green protocol was developed for the synthesis of 2-substituted perimidines. The protocol involves a reaction of ethoxy carbonylhydrazone with 1,8-diaminonaphthalene under solvent- and catalyst-free conditions. Simple ... -
New high intensity Heavy - Ion beams @ INFN-LNS : NUMEN project status and perspective
(IOP Publishing, 2023)The upgrade project POTLNS to produce high-intensity beams has already started at INFN- Laboratori Nazionali del Sud in Catania (Italy). The POTLNS project was triggered by the NUMEN physics case that aims to provide ... -
New lipase assay using Pomegranate oil coating in microtiter plates
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2016)Lipases play various roles in fat digestion, lipoprotein metabolism, and in the mobilization of fat stored in lipid bodies in animals, plants and microorganisms. in association with these physiological functions, there is ... -
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 ... -
New locality records for eirenis occidentalis (Rajabizadeh, Nagy, Adriaens, Avcı, Masroor, Schmidtler, Nazarov, Esmaeili & Christiaens, 2015) and Eirenis punctatolineatus (Boettger, 1892) (Squamata: Colubridae) from eastern Anatolia (Turkey)
(Universitatea din Oradea, 2019)Here, we report new localities for Eirenis occidentalis and Eirenis punctatolineatus from the eastern Anatolia during a field survey in 2017, and present a summary of a morphological comparison between our specimens and ... -
A new method for activity monitoring using photoplethysmography signals recorded by wireless sensor
(Springer Heidelberg, 2020)Purpose Different kinds of sensors such as accelerometers and gyroscopes have been used for inferring, predicting, and monitoring human activities for various kinds of applications, including human-computer interaction, ... -
New moss records from Azerbaijan
(Çankırı Karatekin Üniversitesi, 2021)Azerbaycan’ın Khizi bölgesine yapılan briyolojik gezi sonucunda Mnium thomsonii Schimp., Racomitrium microcarpon (Hedw.) Brid, Grimmia longirostris Hook., Plagiothecium succulentum (Wills.) Lindb Tomentypnum nitens (Hedw.) ... -
New olefinic centred binuclear clamshell type phthalocyanines: Design, synthesis, structural characterisation, the stability and the change in the electron cloud at olefine-based symmetrical diphthalonitrile fragment by the combined application of UV-Vis electronic structure and theoretical methods
(Elsevier, 2011)The olefinic centred Schiff base (3) was obtained from the condensation of substituted dialdehyde (1) with 2-amino-4-methylphenol (2) in a 1:2 ratio. The diphthalonitrile derivative (5) was prepared by the reaction of ... -
New potential monotherapeutic candidates for helicobacter pylori: Some pyridinazo compounds having both urease enzyme inhibition and anti-helicobacter pylori effectiveness
(Springer, 2021)To contribute to the monotherapeutic approach to Helicobacter pylori, some new pyridinazo compounds containing natural phenols such as eugenol and guaiacol were synthesized and their antioxidant capacities, urease enzyme ... -
New pyridine derivatives as antiurease inhibitors: Synthesis and their evaluation for antimicrobial activities
(Editura Acad Romane, 2017)6-Morpholin-4-ylpyridin-3-amine (3) gathered starting from morpholine by two steps was converted into the corresponding arylidenehydrazides through the reaction with several aromatic aldehydes. the treatment of compound 3 ... -
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 ...
