Güncel Gönderiler: Gümüşhane University Institutional Repository
Toplam kayıt 5428, listelenen: 5281-5300
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Antioxidant Activity of Bisbenzylisoquinoline Alkaloids from Stephania rotunda: Cepharanthine and fangchinoline
(2009-03-25)In the present study, we determined the antioxidant activity of cepharanthine and fangchinoline from Stephania rotunda by performing different in vitro antioxidant assays including 1,1-diphenyl-2-picryl hydrazyl free ... -
Rosmarinic acid: a potent carbonic anhydrase isoenzymes inhibitor
(2014-08-15)Rosmarinic acid is a water-soluble ester of ca eic acid and 3,4-dihydroxyphenyllactic acids, and is mainly found in plant species including Boraginaceae and Lamiaceae. In this research, we determined the inhibition property ... -
Novel Sulphamides and Sulphonamides Incorporating the Tetralin Scaffold as Carbonic Anhydrase and Acetylcholine Esterase Inhibitors
(2013-09-17)Reactions of amino, aminomethyl tetralins and benzyl alcohol with chlorosulphonyl isocyanate (CSI) afforded sulphamoyl carbamates. The sulphamoyl carbamates were converted to sulphamides by palladium-catalysed hydrogenolysis. ... -
(3,4-Dihydroxyphenyl)(2,3,4-trihydroxyphenyl)methanone and its derivatives as carbonic anhydrase isoenzymes inhibitors
(Journal of Enzyme Inhibition and Medicinal Chemistry, 2013-04)In this study, we have synthesised (3,4-dihydroxyphenyl)(2,3,4-trihydroxyphenyl)methanone and a series of its derivatives (5, 13–16) and tested the ability of these compounds to inhibit two metalloenzyme human carbonic ... -
ANALYZING SHORT (100 METERS) AND MIDDLE DISTANCE (800-1200 METERS) RUNNING AND COORDINATION VALUES ACCORDING TO SPORTS BRANCHES OF STUDENTS WHO TAKE ENTRANCE EXAMS TO SPORTS HIGH SCHOOL
(International Science Culture and Sport Association, 3rd International Conference on Science Culture and Sport, 2014-05-25)The purpose of this study to determine the changes in accordance with running and coordination values of children who took the entrance examinations of sports high scholl in the 5 year period and assess them according to ... -
Kaynak Avantajı Kuramı Üzerine Kavramsal Bir Bakış
(İşletme ve Ekonomi Araştırmaları Dergisi, 2010)İşletmelerin bir yandan varlıklarını sürdürebilmeleri için kaynakları ile kendilerini finanse etmeleri diğer yandan tüketicilerin ihtiyaç ve beklentilerini düşünerek onlara en düşük maliyetle en yüksek değerde ürünler ve ... -
Availability of tuffs from northeast of Turkey as natural pozzolan on cement, some chemical and mechanical relationships
(Construction and Building Materials, 2007-12)At Northeast of Turkey, it is possible to find plenty of volcanic origin rocks and rich natural pozzolan beds. In this study, the pozzolanic activities of six types of different tuff samples taken from Trabzon and Bayburt ... -
Abrasion Resistance of Cement Mortar with Different Pozzolanic Compositions and Matrices
(Asce-Amer Soc Civil Engineers, 2011)Abrasion of concrete occurs due to scraping, rubbing, skidding, or sliding of objects on its surface. The abrasion resistance of concrete is influenced by a number of factors, such as compressive strength, surfacing finish, ... -
Fen Bilgisi Öğretmen adaylarının ışık ve atom kavramlarını anlama seviyelerinin tespiti
(2010)Bu çalışma, Fen Bilgisi Öğretmenliği bölümü öğrencilerinin ışık ve atom kavramlarını anlama seviyelerini ve onların bu kavramlarla ilgili yanlış anlamalarının olup olmadığının tespit edilmesi amacıyla yapılmıştır. Çalışma ... -
Investigation of mechanical and mineralogical properties of mortars subjected to sulfate
(Elsevier Sci Ltd, 2010)The durability can be described as concrete's resistance to the destructive influences of a medium containing acid, sulfate and/or various chemicals and mechanical effects. The main objective of this study is investigation ... -
İLETİŞİM FAKÜLTESİ ÖĞRENCİLERİNİN CEP TELEFONU MARKALARINA YÖNELİK İMAJ ALGISI: NOKIA VE SAMSUNG ÖRNEĞİ
(2013-01)Marka, ürün ve hizmetleri rakiplerinden farklılaştırarak ayırt etmeyi sağlayan en önemli öğelerden birisidir. Marka imajı ise, tüketicide markaya ait izlenimlerin bütünüdür ya da algılanan gerçektir. Üniversite ... -
Fizik Öğretmenliği Programı Öğrencilerinin Profilleri, Öğretmenlik Mesleğine Yönelik Tutum ve Endişeleri: Erzurum Örneği
(Kastamonu Eğitim Dergisi, 2005-10)Bireyin bir işi yaparken yaptığı işle ilgili tutumunun işin sonundaki ürünü etkileyebileceği ve mesleğini sevmeyen birinin o meslekte başarılı olamayacağı oldukça yaygın bir kanıdır. Öğretmenlerin mesleklerinde başarılı ... -
THE IMPACT OF BALLOT PAPER DESIGN ON VOTER CHOICE: THE CASE OF 2011 DEPUTY GENERAL ELECTIONS IN TURKEY
(2013-01)Voters’ choices are influenced by many factors. It is possible to say that one of these factors are ballot papers. Quite a few researches conducted in various parts of the world have revealed this impact. Some studies have ... -
OY VERME YAKLAŞIMLARI BAĞLAMINDA ADAY MERKEZLİ SEÇMEN TERCİHİ ÜZERİNE DENEYSEL BİR ARAŞTIRMA
(AKADEMİK BAKIŞ DERGİSİ, 2013)Sosyolojik, ideolojik ve rasyonel tercih yaklaşımları seçmenin oy verme davranışındaki önemli etkenlerdendir. Seçmenler tercihlerini yaparken ya içinde bulunduğu toplumsal etmenin etkisinde kalarak, ya sahip olduğu siyasal ... -
Effects of Sintering Temperature on Microstructure and Magnetic Properties of Nd–Fe–B Magnets
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2013-05)The sintered Nd-Fe-B (neodymium-iron-boron) magnet has been used for many applications in various fields such as acoustics, communications, and automation due to its excellent properties including high remanence, high ... -
Comparative study of critical current density, pinning force and levitation force behavior in Yb211 doped-Sm123 bulk superconductors
(ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2012-04-15)The effect of Yb211 doping on the critical transition temperature (T-c), c-lattice parameter, critical current density (J(c)), volume pinning force (F-p) and the vertical levitation force density properties of MPMG-processed ... -
Magnetic Properties of YBCO Single-Crystal Grown on Y2O3 Layer by a Cold Top-Seeding Method
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2012-02)In this work, single-crystal samples 20 mm in diameter were grown by a cold top-seeding method. In order to study the effect of an Y2O3 buffer layer, a compacted precursor was located in a crucible on a buffer layer of ... -
The Effect of Y2O3 Buffer Layer on the Magnetic Properties of Melt-Processed YBCO Superconductor
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2011-07)In this study, two kinds of melt-processed YBCO samples (Y1050-1 and Y1050-2) grown on a buffer layer of Y(2)O(3) addition were fabricated. The compacted powders were located on a crucible with Y(2)O(3) powder freely poured ... -
The Magnetic and Structural Properties of SiC-Doped MgB2 Bulks Prepared by the Standard Ceramic Processing
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2011-01)According to general formula MgB2-x SiC (x) (x=0,0.05,0.1,0.2), MgB2 and SiC-doped bulk superconductors were prepared by the standard ceramic processing. The mixtures of the corresponding powders were sintered at 750 degrees ... -
Magnetic Characterization of SiC Doped Bulk MgB2 Superconductor
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2011-01)Flux pinning is a very significant mechanism to improve critical current density in MgB2 for many applications, such as developing the performance of wires and tapes. In this study, we have done a systematic study of SiC ...
