A novel surface plasmon resonance enhanced total internal reflection ellipsometric application: electrochemically grafted isophthalic acid nanofilm on gold surface

Ali Osman SOLAK

The scope of this study is to modify a Surface Plasmon Resonance (SPR) sensor slide with isophthalic acid to evaluate the possible application on the detection of copper(II) ions in aqueous media by total internal reflection ellipsometry. A gold sensor surface was modified by an electrochemical diazonium reduction modification method. The modified surfaces are characterized with cyclic voltammetry (CV) and ellipsometry. Isophthalic acid monolayer modified gold slides were used for in situdetection of aqueous Cu2+ solution with the SPR enhanced total internal reflection ellipsometry (SPRe-TIRE) ...More

Analysis of the Nano-Surface of a Modified Glassy Carbon Electrode by Pseudo Phase Plane Method

Ali Osman SOLAK

This paper presents the Pseudo phase plane (PPP) method for detecting the existence of a nanofilm on the nitroazobenzene-modified glassy carbon electrode (NAB-GC) system. This modified electrode systems and nitroazobenze-nanofilm were prepared by the electrochemical reduction of diazonium salt of NAB at the glassy carbon electrodes (GCE) in nonaqueous media. The IR spectra of the bare glassy carbon electrodes (GCE), the NAB-GC electrode system and the organic NAB film were recorded. The IR data of the bare GC, NAB-GC and NAB film were categorized into five series consisting of FILM1, GC-NAB1, ...More

Об асимптотике решения одной задачи оптимального управления параболическим уравнением с малым параметром = On the Asymptotics of the Solution of an Optimal Control Problem for a Parabolic Equation with Small Parameter

Asan ÖMÜRALİEV | Ramiz RAFATOV

Cтроится регуляризованная асимптотика решения задачи оптимальногоуправления для сингулярно возмущенной параболической задачи. Асимптотика решения такой задачи содержит параболические погранслойные функции, описываемые специальной функцией, называемой “дополнительным интегралом вероятности”.

Front face fluorescence spectroscopy as a tool for comparison of aromatic amino acids, nucleic acids, vitamin A and FMRP containing in different egg types

Mustafa Haluk ÇELİK

Fluorescence spectroscopy was used to determine contents of amino acids, nucleic acids, Maillard reaction products and vitamin A in whites and yolks of eggs from hens, geese, ducks and quail. The fluorescence spectra obtained varied between egg types and allowed the eggs to be grouped and differentiated from each other on the basis of their composition. Keywords: amino acids; duck eggs; ducks; eggs; fluorometry; geese; maillard reaction; maillard reaction products; nucleic acids; quail eggs; quails; retinoids; spectrofluorometry; spectroscopy; vitamin a; goose eggs

Alkyd Resin Kullanılarak Yerli Ördeklerin Cloaca’sı Üzerine Macroanatomik ve Subgross Bir Çalışma = A Macroanatomic and Subgross Study on the Cloaca of Native Ducks by Using Alkyd Resin

Şamil SEFERGİL

Bu çalışma yerli ördeklerin cloaca’sının yerini, komşuluklarını, makroskobik ve subgross yapılarını belirlemek amacı ile her iki cinsiyetten altı adet hayvan kullanılarak yapıldı. Bu amaçla anestezi sonrası uyutulan ördeklerin cloaca’sı ve bağırsaklarına tespit, yıkama, alkol ve aseton serisi, gliserola gömme, alkyd resin içeren vernik ve tiner solüsyonunu emdirme ve kurutma işlemleri uygulandı. Bu işlemlerden sonra cloaca ve yapıları diseksiyon mikroskobu ile incelendi ve resimlenerek sunuldu. Rectum’un genişlemesinden oluşan cloaca’nın jejunum, duodenum, cecum, bursa cloacalis ile komşu oldu ...More

Tourism Sector in Order to Recovering From the Recession: Comparison Analyses for Turkey

Muhsin HALİS

2008 economic crisis hit very hard many sectors globally, beside tourism, too. According to the economical and financial reports, the demand of hotel & restaurant industry declined sharply, and as a result of that situation tourism revenues had been affected negatively. Turkey was one of the few destination, which had a growing at the international tourist arrivals despite the 2008 crisis. Although the tourism revenues declined, but it was little while comparing with its competitors. Via the analyses of data's has been obtained by Prime Ministry Undersecretaries of Treasury, the effects of the ...More

Screening of Wild-Type Fungal Isolates for Cellulolytic Activity

Tinatin DOOLOTKELDİEVA | Saykal BOBUŞOVA

Background: In this study, wild-type fungal isolates, producing highly effective cellulolytic enzymes were selected for bioconversion of residues and waste from agriculture and rational utilization of energy resources for food production. Methods: We screened wild-type fungal isolates of Aspergillus, Penicillium, and Trichoderma with an enhanced ability to produce extracellular cellulase. We carried out solid-state fermentation on a medium of agricultural waste products, including wheat bran, beet peels, and cotton oil cake, as well as additional sources of nitrogen and mineral elements. Enzym ...More

Covalently Grafted on to the Glassy Carbon Electrode in Non-Aqueous Media of Apigenin and Naringenin as Different Flavonoid Derivatives

Ali Osman SOLAK

In this paper, apigenin (AG) and naringenin (NG) have been studied with the cyclic voltammetric technique using the glassy carbon (GC) electrode. The modification was carried out only in non-aqueous media, while the electrochemical characterization was done in both aqueous and non-aqueous media. 0.1 M tetrabutylammonium tetrafluoroborate (TBATFB) in acetonitrile (MeCN) was used in non-aqueous experiments, Britton-Robinson (BR) buffer solution (pH=2) and 0.1 M KCl solution were used in aqueous experiments. Surface modification experiments were performed in the +0.3 V and +2.8 V potential ranges ...More

Girdi-Çıktı Analizi Yaklaşımıyla Kazakistan Ekonomisinin Dışa Bağımlılığının İncelenmesi (2006-2009) = An Evaluation of Independence of Kazakhstan Economy by Input-Output Analysis (2006-2009)

Zamira ÖSKÖNBAYEVA | Aynura TURDALİYEVA

Input-output analysis is an analytical technique widely used both in developed and developing countries which reflects the production consumption relationships of production sectors of a country’s economy. At the same time it is the macroeconomic analysis tool that defines economic relations of each sector by production and consumption. During the process of globalization all developed and developing country economies are trying to open their economies in order to provide their economic development. However, the openness can lead to negative consequences in some countries such as increasing th ...More

Киргизстан: взгляд в настоящее и будущее

Cıldız URMANBETOVA

«Центральная Азия и Кавказ», Лулео (Швеция), 2010 г., т. 13, вып. 3, с. 177-184.

Об одном классе систем линейных интегральных уравнений Фредгольма третьего рода

Avıt ASANOV

GİRDİ-ÇIKTI ANALİZİ YAKLAŞIMIYLA KIRGIZİSTAN EKONOMİSİNİN İNCELENMESİ

Aynura TURDALİYEVA | Cunus GANİEV

Özellikle gelişmekte olan ülke ekonomilerinde kalkınma amacına paralel olarak uygulanan ekonomik politikaların temel amaçlarından biri de, kalkınmayı hızlandıracak şekilde ekonomik yapı değişimini gerçekleştirmektir. Küreselleşme ise tüm dünyada olduğu gibi Kırgızistan