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Search Results: 1 - 10 of 286 matches for " Ozturk "
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The Synthesis of Arylsulfonylphthalimides and Their Reactions with Several Amines in Acetonitrile  [PDF]
Seyhan Ozturk, Halil Kutuk
International Journal of Organic Chemistry (IJOC) , 2011, DOI: 10.4236/ijoc.2011.14029
Abstract: In this study, several N-(p-substituted-arylsulfonyl)phthalimides (1a-e) were synthesized. The synthesized compounds were then examined with respect to their substitution reactions with t-butylamine, diethylamine, cyclohexylamine, and trans-1,2-diaminocyclohexane in acetonitrile. In order to determine the mechanism, substituent effect, activation entropy, and nucleophile effect were used as criteria.
Dartos flap coverage of the neourethra following repair for primary hypospadias, reoperative hypospadias and urethrocutaneous fistulas: it is a safe approach
Ozturk, Hayrettin;
Acta Cirurgica Brasileira , 2010, DOI: 10.1590/S0102-86502010000200012
Abstract: purpose: urethrocutaneous fistula and neourethral dehiscence are frequently seen complications of hypospadias surgery requiring reoperation. in this study we report the experience of one surgeon with dartos flap coverage in primary hypospadias, reoperative hypospadias and urethrocutaneous fistulas repair. methods: a total of 23 patients underwent hypospadias and urethrocutaneous fistulas repair from january 2006 to may 2009. fourteen patients were operated on for primary hypospadias repair at our institution and 9 patients were admitted for hypospadias complications such as failed hypospadias repair and urethrocutaneous fistula. in all the patients, the dartos flap was dissected and transposed to cover the neourethra. operative results were recorded. results: the primary surgical procedure was a one-stage repair in 61% (n = 14); tubularised incised plate (tip) urethroplasty in 43% (n = 6) and a mathieu procedure in 57% (n = 8). urethrocutaneous fistulas complicating the previous initial hypospadias repair were anterior in 33% (n = 2), middle in 33% (n = 2) and proximal in 33% (n = 2). repair of the fistula was successful on the first attempt in all patients. the reason for redo surgery in 3 patients was complete dehiscence and the patients had distal shaft hypospadias. conclusion: dartos flap coverage of the neourethra seems to be an effective method of reducing the fistulous complication rate following primary and secondary hypospadias repair.
ACTA MATHEMATICA UNIVERSITATIS COMENIANAE
M. Ozturk
ACTA MATHEMATICA UNIVERSITATIS COMENIANAE , 2003,
Abstract: . In this work some distortion theorems and relations between the coefficients of normalized univalent harmonic mappings from the unit disc onto domains on the direction of imaginary axis are obtained.
Multi-Objective Drainage Requirement of Harran Plain
Ahmet Ozturk
Pakistan Journal of Biological Sciences , 2004,
Abstract: While the main objective of drainage requirement in the semi-arid region such as south-eastern Anatolia is generally salinity control, other objectives may also be important. Because of irrigation, salinity problems have occurred in many areas in Harran Plain. There is no subsoil drainage system in the plain. In this study, proper drain depth, drain diameter and drain spacing are determined and evaluated depending on soil and plant features of the plain. In the plain, drain depth, drain diameter and drain spacing are proposed as 1.8 2.0 m, 100 mm and 21.3 m, respectively.
Producing Knowledge of the Middle East in the Middle East/// Orta Do u Bilgisinin Orta Do u'da üretilmesi
Muammer OZTURK
History Studies : International Journal of History , 2012,
Abstract: This article’s departure point is the need for new theories of International Relations to analyze and elaborate a new picture of the Middle East. The Middle East has often been regarded as a region characterized byrapid and continuous change and instability, and accordingly defined as a laboratory of events. Therefore, it is a task of the intellectuals and academicians of the Middle East to produce some indigenous (local) theories which will contribute to casting and understanding a new picture of the Middle East. This article also stresses the need for new theories of International Relations in order to better grasp ever-changing world affairs. The article concludes with a brief analysis of the present performance of the Middle East regarding theory generation.
An Assessment over Alternative Monetary Policy Strategies
Salih Ozturk
Journal of Applied Sciences , 2006,
Abstract: In monetary policy literature, opinions contended against activist politics applications and inflation cost had caused changes in aims of monetary politics priority order in last years, in many developed and developing countries, cost stability is started to accepted as the first aim of the monetary policy. This development excited the alternative monetary policy strategies to come order. Monetary related aims, foreign currency rate aims and inflation aims are the major monetary strategies. Country applications declaredly showed that all pointed strategies could not have been successful of equal standing for reaching the cost stability aim. The achievement of monetary strategies is depended to their reliability.
Evaluation of Biogas Production Yields of Different Waste Materials
Bahtiyar Ozturk
Earth Science Research , 2012, DOI: 10.5539/esr.v2n1p165
Abstract: Biogas production from three different sources namely, cattle manure, cheese whey and blood, which have different characteristics, were investigated comparatively. Biogas production rates of 0.63, 0,72 and 0,64 l min-1 m-3 were obtained from the digestion of manure, co-digestion of manure-cheese whey and manure-blood, respectively, at 35±2 oC. Phosphorus () and volatile solid materials (VSM) are important for anaerobic bacteria as much as C:N ratio. A 54% of reduction in VSM and a 52 % reduction in were observed in 30 days of digestion of manure. The amount of total nitrogen (Tot-N) decreased 10% in 30 days of digestion but ammonium-nitrogen (Am-N) increased 46% at the same duration of time. Manure, during co-digestion, buffered and inoculated the cheese whey and blood, and converted them to the energy source. An average COD removal of 52% or 34% is also possible during co-digestion of cheese whey or blood with manure.
Cerebral Sinus Thrombosis
Vesile OZTURK
Journal of Neurological Sciences , 2007,
Abstract: Editorial
From the Editor in Chief...
Cemil Ozturk
Journal of Social Studies Education Research , 2012,
Abstract: We are pleased to present the May-2012 issue of the Journal of Social Studies Education Research (JSSER). We would like to start with giving information about the first International Symposium on Social Studies Education: New Trends and Issues in Citizenship and Democracy Education in a Changing World’. Association for Social Studies Educators has successfully completed the first symposium in corporation with Marmara University and Council of Europe in 20-22 April 2012 in stanbul, Turkey. The first International Social Studies Symposium took place with 250 participants from 11 different countries: Turkey, Brazil, Canada, England, The USA, Germany, France, Italy, Malaysia, Azerbaijan, Greece and Kirgizstan. There were 151 full oral and 4 poster presentations presented by the participants. This event provided opportunities for participant to exchange ideas and learn about perceptions of citizenship and citizenship education in different countries
Symplectic Symmetry of the Neutrino Mass For Many Neutrino Flavors
Nurcan Ozturk
Physics , 2001, DOI: 10.1238/Physica.Topical.093a00041
Abstract: The algebraic structure of the neutrino mass Hamiltonian is presented for two neutrino flavors considering both Dirac and Majorana mass terms. It is shown that the algebra is Sp(8) and also discussed how the algebraic structure generalizes for the case of more than two neutrino flavors.
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