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Search Results: 1 - 10 of 221 matches for " Demirtas Ertan "
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Letter to the Editor
Kursaklioglu Hurkan,Iyisoy Atila,Demirtas Ertan
Arquivos Brasileiros de Cardiologia , 2002,
Spectrographic Characteristics of Turkish /h/  [PDF]
Esra Ertan
Open Journal of Acoustics (OJA) , 2013, DOI: 10.4236/oja.2013.34015

/h/ is described differently by different researchers. While some argue that /h/ is a glottal fricative, others argue that it is the voiceless counterpart of the following vowel, yet others argue that /h/ is a glide or an approximant. However, de- tailed acoustic studies focusing on /h/ are very limited. This study aims to describe the spectrographic characteristics of /h/ in Turkish. Test words consisted of 48 monosyllabic and disyllabic words containing /h/ which was followed by eight Turkish vowels. Totally 1440 tokens were analyzed. After segmentation, /h/ was classified based on its spectrographic characteristics: 1) segment exhibiting formants, 2) segment exhibiting frication (but no formants) with energy in lower frequencies and 3) segment exhibiting almost no energy. In order to find out if there is a significant difference among these three categories, Chi-square test was applied. The spectrographic characteristics of /h/ in Turkish suggest that it is more like the voiceless version of the surrounding vowels, significantly when it is in syllable initial position and the preceding vowel when in syllable final position.

Parental Consanguinity in Infertile Males  [PDF]
Abdullah Demirtas, Emre Can Akinsal, Oguz Ekmekcioglu
Open Journal of Urology (OJU) , 2013, DOI: 10.4236/oju.2013.32010

This study was investigated whether parental consanguinity in males has an effect on or relationship with some infertile subgroups and some semen and hormone parameters. The charts of 2651 infertile males were evaluated retrospectively for parental consanguinity ratios, sperm counts, motility parameters and hormonal values from the records of 2651 infertile males. In 1260 eligible males the first cousin parental consanguinity ratio was 22.6%. In 119 males with nonobstructive azoospermic (NOA) and 430 males with normal sperm counts, the ratios were 34.5% and 20.9%, respectively (p = 0.002). In the NOA group the parental consanguinity ratios were 27.1% (23/85) and 52.9% (18/34) in males with FSH values of >7.6 and <7.6 mIU/ml, respectively (p = 0.007). In males with normal sperm counts if the parents were first cousins, both sperm counts and motility parameters were significantly reduced when compared with the others. To our knowledge, this is the first study of consanguinity ratios among some infertile subgroups. In males with parental consanguinity lower sperm counts and motility ratios in normozoospermic males and lower FSH levels in the NOA group might show a relation with some genetically transmitted defects.

Calculation of Constitutive Parameters from Electric and Magnetic Field Measurements in an Anisotropic Medium with a Triaxial Instrument  [PDF]
Ertan Pek?en
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.41007

A hypothetical electric and magnetic induction tensor is considered in an anisotropic medium. The sources are magnetic dipoles. In such a medium, constitute parameters can be calculated by combining electric and magnetic field measurements. Constitutive parameters are not a scalar in this case. They are tensors, so parameters have at least both horizontal and vertical components in a uniaxial medium. These calculated parameters from the field measurement are horizontal and vertical conductivity, permittivity, and magnetic permeability. Operating frequency range is also quite large. It is up to 4 GHz. A hypothetical instrument should measure gradient fields both electric and magnetic types as well.

A Data Envelopment-Based Clustering Approach for Public Sugar Factories in Privatizing Process
Ezgi A. Demirtas
Mathematical Problems in Engineering , 2011, DOI: 10.1155/2011/946549
Abstract: Turkish Sugar Inc., a public enterprise including 25 factories, is the first corporation of Turkish industry. According to the government policy, public sugar factories (PSFs) will be privatized as geography-based 6 portfolio groups in two years. As performance measures of PSF affect government, sugar producers, and several unions in privatizing process, a systematic approach is necessary to measure efficiencies and grouping factories. This paper uses a new DEA- (Data Envelopment Analysis-) based clustering approach for measuring efficiency scores of PSF and grouping them instead of geography- based portfolio groups. This new approach can help decision makers in privatizing process. At the same time, target values obtained by dual model can be used to eliminate inefficiencies of some PSFs.
A Comparative Study of Neural Networks and Fuzzy Systems in Modeling of a Nonlinear Dynamic System
Metin Demirtas,Musa Alci
International Journal of Optimization and Control : Theories & Applications , 2011,
Abstract: The aim of this paper is to compare the neural networks and fuzzy modeling approaches on a nonlinear system. We have taken Permanent Magnet Brushless Direct Current (PMBDC) motor data and have generated models using both approaches. The predictive performance of both methods was compared on the data set for model configurations. The paper describes the results of these tests and discusses the effects of changing model parameters on predictive and practical performance. Modeling sensitivity was used to compare for two methods.
Bioactive Volatile Content of the Stem and Root of Centaurea carduiformis DC. subsp. carduiformis var. carduiformis
Ibrahim Demirtas,Ayse Sahin
Journal of Chemistry , 2013, DOI: 10.1155/2013/125286
Besoins réciproques du marché de la traduction et des apprenants : Les notions de qualité et de vitesse
Elif Ertan
Synergies Turquie , 2012,
Abstract: Dans les sociétés de traduction, les demandes sont toutes urgentes. Des tas de pages de traduction sont demandées par des donneurs d’ouvrages pressés par de courtes durées. La qualité des traductions peut-elle être assurée avec des opérations à grande vitesse ? Les apprenants peuvent-ils s’adapter à cette vitesse ? Dans cette recherche nous allons nous focaliser sur la relation bilatérale entre le marché de traduction et les apprenants, en ayant recours aux besoins réciproques des deux partis. Le besoin des apprenants est de conna tre les pratiques de traduction dans le marché et celui du marché est de faire assurer la qualité et la vitesse en même temps. Nous visons à partager les méthodes et les modèles que nous appliquons pour améliorer ce couple inséparable des traductions spécialisées dans les cours de traduction technique à l’Université Technique de Y ld z.
The Principle of Laicism and Counter State-building in Turkey: Reflections on History and on the Conjuncture of Contemporary Politics
Senem Ertan
Interdisciplinary Political Studies , 2011,
Abstract: The principle of laicism has been one of the main pillars of the state-building process of Turkey. Laicism in Turkish context was held through incorporation of religious institutions into the state apparatus. Starting with the 1990s parties with Islamist background have gained political power and found their way into government. With some reflections on the historical evaluation of Turkish politics, this article accommodates western oriented theories of state-building suggested by prominent scholars such as Charles Tilly and Stein Rokkan, and Barkey’s complimentary model of state formation for non-western societies. The key objective of this article is to scrutinize the relationship between the state and religion during the old and the new state-building processes of Turkey. This study provides systematic empirical evidence to the argument that Millennium has witnessed a well-organized counter state-building process carried on by the government of the Justice and Development Party (AKP).
Amat'ta Yap ve Simgeler (Structure And Symbols In “Amat”)
Ertan ?rgen
Bal?kesir üniversitesi Sosyal Bilimler Dergisi , 2008,
Abstract: Structure And Symbols In “Amat”Bases Of Research: Amat, one of the most noticeable recent Works of Turkish novel, relates to time and human relations with respect to structure and symbol.Purpose Of The Research: It is seen that the novel including philosophy and fantastic relation has found a world beyond the straight truth and carries a literary level and experience that exclude itself from junk literature. The novel approaches life-death line, the ultimate problem of human being, in the axis of the order of devil and the hero. Circulation and time go forward through numbers and codes. All these in the form of pluralistic description are turned into a play.Data Sources: The novel “Amat” has been defined as a postmodern story telling, religious and mythological symbols.Main Discussion: through which structure and symbols does the novel Amat carry the past experiences to today’s world and culture conditions.Results: Postmodern style is loading a new meaning to the truth and takes human beings from modern learning to traditional knowledge .
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