Güncel Gönderiler: Fen Fakültesi
Toplam kayıt 1146, listelenen: 321-340
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The Effects of Science Teaching Through Team Game Tournament Technique on Success Level and Affective Characteristics of Students
(2008)The purpose of this study is to investigate the effects of teaching a unit & #8220; Reproduction and Growth in Living Things& #8221; from the science curriculum of 8th graders by using Team Game Tournament (TGT) ... -
Real gamma scattering at TESLA x N collider
(2001)The proposal for measurement of polarized gluon and quark distributions in scattering of polarized real y beam on polarized nuclear target have been considered. High energy y beam is obtained by backscattering of laser ... -
Admittance and impedance spectroscopy on Cu(In,Ga)Se2 solar cells
(2003)The present work reports some experimental results on the electrical properties of high efficiency ZnO/CdS/Cu(In,Ga)Se2 heterojunction solar cells. Admittance spectroscopy has been employed for characterisation of the bulk ... -
Application of microwave–assisted digestion to trace heavy metal determination in sea sediment sample
(2008)The main goal of this study is to develop an efficient microwave digestion method for the determination of Pb, Cu, Cr, Co and Zn elements from a sea sediment sample. Microwave acid digestion techniques were investigated ... -
Gold nanoparticle synthesis and characterisation
(2009)The aim of this study is to synthesize and characterize gold nanoparticles. For this purpose, the reduction reaction between tetrachloroauric acid and sodium citrate was used. At the end of the reduction reaction, gold ... -
Raman scattering in layered CdInGaS4
(2004)Raman scattering spectra of CdInGaS4 crystals grown by the chemical transport method were measured at room and liquid-nitrogen temperatures. Band pairs at 29-38, 43-48 and 60-65 $cm^{-1}$ are reported for the first time. ... -
Influence of nitrate, phosphate and herbicide stresses on nitrogenase activity and growth of cyaobacteria isolated from paddy fields
(2007)Samples were collected from paddy fields in Corum-TURKIYE. Nitrogen-free BG-11 medium was used for isolation of nitrogen fixing cyanobacteria. Acetylene reduction technique was used to determine the effects of different ... -
Irreducible polynomials by the polytope method over integral domains
(2005)Ostrowski realized that there is a relation between the factorization of a multivariate polynomial over any field and the integral decomposition of the Newton polytope of this polynomial. Here, we extended this result to ... -
Urease immobilized piezoelectric quartz crystal for urea conversion
(2008)In this study, the immobilization of the enzyme urease on the surface of the quartz crystal was reported. The layer growth on silver electrode resonator was monitored with QCM and the catalytic activity of the enzyme layer ... -
Photopolymerized poly(Ethylene glycol) diacrylate hydrogels for controlled release of ketoprofen
(2009)In this study, poly(ethylene glycol-diacrylate) (PEG-DA) hydrogels with two different concentrations, 30% and 50% w/w, were prepared by free radical polymerization method. Ethylene glycol dimethacrylate (EGDMA) and ... -
Carrier free cross-linked peroxidase aggregates: synthesis and characterization
(2008)In this study, cross-linked Horseradish Peroxidase (HRP) aggregates were prepared. Bovin Serum Albumin (BSA), a proteic feeder, and glutaraldehyde, a bifunctional reactive, a crosslinker agent has also been used. The initial ... -
Chelating agent effect on the release of gentamicin from PEG-DA hydrogels
(2008)In this study, controlled drug release devices of poly(ethylene glycol-diacrylate) (PEG-DA) hydrogels were prepared by free radical UV polymerization. PEG-DAmacromere was cross-linked with different percentages of ethylene ... -
Quartz crystal piezo electrode surface modification for gold nano-particles immobilization
(2007)In this study silver electrode quartz crystal surfaces were cleaned and modified to immobilize gold nanoparticles. First, the crystal surfaces were cleaned and activated with sodium hydroxide, acetone and methanol. After ... -
Two new record for the Turkish Agromyzidae (Diptera) fauna
(2004)Türkiye Agromyzidae (Diptera) faunası için iki yeni kayıt Bu çalışma 2003 yılında Muğla İlinde gerçekleştirilmiş olup, Liriomyza pascuum (Meigen, 1838) ve Phytomyza aconitophilia Hendel, 1927'nın Türkiye gaierisinekleri ... -
Integrally indecomposable polytopes
(2006)Gao gave a criterion for the integral indecomposability, with respect to the Minkowski sum, of polytopes lying inside a pyramid with an integrally indecomposable base. Here, we weakened this criterion to the polytopes lying ... -
The phenolic compounds from Hypericum perforatum and their antimicrobial activities
(2008)Hypericum perforatum (St. John& #8217; s wort) (H. perforatum) is a plant which has been used as a medicinal herb since ancient times and grow in Europe, West Asia and North Africa. In this work, the crude extracts of ... -
Air moisture sensing properties of ZnCr2O4−K2CrO4 composites
(2005)Crystalline structure, surface morphology and the response to air moisture of ceramic system of composition $ZnCr_2O_4-K_2CrO_4$ formed by solid state reaction at elevated temperatures were investigated. The fired ceramic ... -
$ZnCr_2O_4$'in nem algılama davranışlarının $K_2CrO_4$ eklenerek geliştirilmesi
(2005)Spinel $ZnCr_2O_4$ seramiğine çeşitli yüzdesel oranlarda potasyum kromatla yapılan katkılandırmanın neme karşı davranışı ile ilgili etkileri çalışılmıştır. Numuneler arasında sadece %20 $K_2CrO_4$ içeren $ZnCr_2O_4$ seramik ... -
Kurumsal Karne Gelişiminde Stratejik Yönetimi Etkinleştirme
(2007)Son zamanlarda yönetim alanında gerçekleştirilen bilimsel çalışmalar örgüt sürekliliğinin anahtar faktörü olarak, örgütün potansiyel stratejisinin değişime adaptasyonunu ve stratejinin örgüt ortamına etkin bir şekilde ... -
Bazı Tıbbi Bitkilerin Farklı Kanser Hücre Hatlarında Sitotoksik Aktiviteleri
(2017)Son yıllarda kanserin önlenmesi ve tedavisi için, farklı sınıfta fitokimyasal içerikleri ve daha az yan etkileri nedeniyle bitkilerin kullanımı oldukça önem kazanmaktadır. Bu çalışmada, Türkiye'nin Kars ilinden toplanan ...
