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Now showing items 1-20 of 295

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      2-Hydroxyethyl substituted NHC precursors: Synthesis, characterization, crystal structure and carbonic anhydrase, alpha-glycosidase, butyrylcholinesterase, and acetylcholinesterase inhibitory properties 

      Fatos, Erdemir; Duygu Barut, Celepci; Aydin, Aktas; Parham, Taslimi; Yetkin, Gok; Hasan, Karabiyik; Ilhami, Gulcin (Elsevier, 2018-03-05)
      This study contains novel a serie synthesis of N-heterocyclic carbene (NHC) precursors that 2-hydroxyethyl substituted. The NHC precursors have been prepared from 1-(2-hydroxyethyl)benzimidazole and alkyl halides. The novel ...
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      A study on the fourth fundamental form of the factorable hypersurface 

      Güler, Erhan (2020-12-10)
      We study the fourth fundamental form of the factorable hypersurface in the four dimensional Euclidean space E4. We obtain I, II, III, and IV fundamental forms of a factorable hypersurface.
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      Algebraic surfaces of henneberg in minkowski 3-space 

      Güler, Erhan; Zambak, Vahit (Yüzüncü Yıl Üniversitesi, 2015)
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      Algebraic surfaces of the laplace-beltrami operators of the TF-type surfaces 

      Güler, Erhan; Yaylı, Yusuf; Hacısalihoğlu, Hasan Hilmi; Saraçoğlu Çelik, Semra (Yıldız Teknik Üniversitesi, 2015)
      We study on a new kind of surface covered by translation and factorable (TF-type) surfaces in the three dimensional Euclidean space. We calculate I and III Laplace-Beltrami operator surfaces of a TF-type ...
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      Alleviation of copper stress with homobrassinosteroid in germinating sunflower roots 

      Ceylan (Bürün), Kevser Betül; Maraklı, Sevgi; Gözükırmızı, Nermin (Fresenius Environmental Bulletin, 2016-11)
      We investigated potential alleviation effects of homobrassinosteroid (HBR) hormone on sunflower (Helianthus annuus L. cv. TR003) grown under copper (Cu) stress conditions. Seeds were grown under Cu (30 µM and 40 µM) ...
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      Aminopyrazole‐substituted metallophthalocyanines: Preparation, aggregation behavior, and investigation of metabolic enzymes inhibition properties 

      Güzel, Emre; Koçyiğit, Ümit M.; Arslan, Barış S.; Ataş, Mehmet; Taslimi, Parham; Gökalp, Faik; Nebioğlu, Mehmet; Şişman, İlkay; Gulçin, İlhami (Wiley, 2019-02)
      The synthesis, characterization, aggregation behavior, theoretical studies, and investigation of antimicrobial, antidiabetic, and anticholinergic properties of 4-(2-(5-amino-4-(4-bromophenyl)-3-methyl-1H-pyrazol-1-yl)eth ...
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      Anticancer activities and mechanism of action of 2 novel metal complexes, C16H34N8O5Ag2Cd and C11H16N7O2Ag3Ni 

      Korkmaz, Nesrin; Karadağ, Ahmet (TÜBİTAK, 2014-11-24)
      The discovery of anticancer activity in cisplatin triggered the development of novel drugs containing metals such as platinum or ruthenium. Extremely diverse structural chemistry and the interaction of metal complexes with ...
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      Antidiabetic and antiparasitic potentials: Inhibition effects of some natural antioxidant compounds on α-glycosidase, α-amylase and human glutathione S-transferase enzymes 

      Gulçin, İlhami; Taslimi, Parham; Aygün, Ayşenur; Sadeghian, Nastaran; Bastem, Enes; Kufrevioglu, Omer Irfan; Turkan, Fikret; Şen, Fatih (Elsevier, 2018-11)
      The glutathione S-transferase (GST) was purified from fresh blood erythrocytes using affinity column chromatography. Also, alpha-amylase from porcine pancreas and alpha-glycosidase from Saccharomyces cerevisiae were used ...
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      Antidiabetic potential: In vitro inhibition effects of bromophenol and diarylmethanones derivatives on metabolic enzymes 

      Demir, Yeliz; Taslimi, Parham; Ozaslan, Muhammet Serhat; Oztaskin, Necla; Çetinkaya, Yasin; Gulçin, İlhami; Beydemir, Şükrü; Goksu, Suleyman (Wiley, 2018-12)
      Aldose reductase converts glucose to sorbitol in the polyol pathway. It is an important enzyme to prevent diabetic complications. In this study, we studied the inhibitory effects of bromophenol derivatives on aldose reductase ...
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      Antidiabetic potential: in vitro inhibition effects of some natural phenolic compounds on -glycosidase and -amylase enzymes 

      Parham, Taslimi; Ilhami, Gulcin (Wiley, 2017-10)
      -Glycosidase is a catalytic enzyme and it destroys the complex carbohydrates into simple absorbable sugar units. The natural phenolic compounds were tested for their antidiabetic properties as -glycosidase and -amylase ...
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      Antioxidant activity of the aqueous extract of iris taochia and identification of its chemical constituents 

      Askin, H.; Yilmaz, B.; Gulcin, I.; Taslimi, Parham; Bakirci, S.; Yildiz, M.; Kandemir, N. (Indian Journal of Pharmaceutical Sciences, 2018-09)
      In this study, phytochemical components and antioxidant capacity of extracts obtained from Iris taochia plant, which is endemic to Caucasus, were investigated. Fifteen new compounds were detected and identified using a ...
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      Antioxidant activity, acetylcholinesterase, and carbonic anhydrase inhibitory properties of novel ureas derived from phenethylamines 

      Kadir, Aksu; Bunyamin, Ozgeris; Taslimi, Parham; Ali, Naderi; Ilhami, Gulcin; Suleyman, Goksu (Wiley, 2016-12)
      A series of ureas derived from phenethylamines were synthesized and evaluated for human carbonic anhydrase (hCA) I and II, acetylcholinesterase (AChE), and butyrylcholinesterase (BChE) enzyme inhibitory activities and ...
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      Antioxidant and acetylcholinesterase inhibition properties of novel bromophenol derivatives 

      Oztaskin, Necla; Cetinkaya, Yasin; Taslimi, Parham; Goksu, Suleyman; Gulcin, Ilhami (Elsevier, 2015-06)
      In this study, series of novel bromophenol derivatives were synthesized and investigated for their antioxidant and AChE inhibition properties. Novel brominated diarylmethanones were obtained from the acylation reactions ...
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      Antioxidant and anticholinergic properties of olivetol 

      Taslimi, Parham (Wiley, 2018-06)
      Olivetol is a pioneer in diverse syntheses of tetrahydrocannabinol. It is produced by a type of insects, which is used as a pheromone, antiseptic, or repellent agent. In this study, we evaluated the antioxidant properties ...
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      Antioxidant, antimicrobial and anticancer activities of the aspergillin pz and terphenyllin secondary metabolites: an in vitro study 

      Yavuz, Erden; Suat, Tekin; Cigdem, Tekin; Sevda, Kirbag; Kevser, Betul Ceylan (Gazi University Journal of Science, 2019-09-01)
      The importance of secondary metabolites obtained from fungi is increasing day by day in terms of human health. Many physiological and pharmacological effects, mainly antimicrobial, anticancer and antioxidant properties of ...
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      Assigned roles as a structuring tool in online discussion groups: comparison of transactional distance and knowledge sharing behaviors 

      Yılmaz, Ramazan; Karaoglan Yilmaz, Fatma Gizem (Sage, 2019)
      Çevrimiçi Tartışma Gruplarında Yapılandırma Aracı Olarak Rol Atama: İşlem Mesafesi ve Bilgi Paylaşımı Davranışlarının Karşılaştırılması Özet: Bu çalışmanın amacı, çevrimiçi tartışma gruplarına katılımcılara işlemsel ...
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      Astrohelicoidal hypersurfaces in 4-space 

      Güler, Erhan; Kişi, Ömer (International Conference on Mathematics and Mathematics Education, 2019)
      We consider an astrohelicoidal hypersurface which its profile curve has astroid curve in the four dimensional Euclidean space E4. We also calculate Gaussian curvature and the mean curvature, and Weingarten relation of the ...
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      Astrohelicoidal surfaces 

      Güler, Erhan; Kişi, Ömer (International Conference on Mathematics and Mathematics Education, 2019)
      We construct an astrohelicoidal surface which its profile curve has astroid curve in the three dimensional Euclidean space E3. We also find Gaussian curvature and the mean curvature, and Weingarten relation of the surface ...
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      Augmented intelligence in programming learning: Examining student views on the use of ChatGPT for programming learning 

      Yılmaz, Ramazan; Yılmaz, Fatma Gizem Karaoğlan (Elsevier, 2023)
      With the diversification of generative artificial intelligence (AI) applications, the interest in their use in every segment and field of society in recent years has been increasing rapidly. One of these areas is programming ...
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      Bour s theorem on gauss map in 3 euclidean space 

      Güler, Erhan; Yaylı, Yusuf; Hacısalihoğlu, Hasan Hilmi (Hacettepe Üniversitesi, 2010)
      In this paper some relations are established between the Laplace-Beltrami operator and the curvatures of helicoidal surfaces in 3-Euclidean space. In addition, Bour’s theorem on the Gauss map, andsome special examples are given.

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