Aksaray University Institutional Repository
Not a member yet
8503 research outputs found
Sort by
Solubility and decomposition of organic compounds in subcritical water
Get PDFIn this article, studies on organic solubility and stability in subcritical water reported during the past 25 years have been reviewed. Data on the solubility and decomposition of organic compounds in subcritical water, a green solvent, are needed in environmental remediation, chemistry, chemical engineering, medicine, polymer, food, agriculture, and many other fields. For solubility studies, the experimental systems used to measure solubility, mathematical equations derived and applied for the modeling of the experimentally determined solubility data, and the correlation between the predicated and experimental data have been summarized and discussed. This paper also reviewed organic decomposition under subcritical water conditions. In general, the solubility of organics is significantly enhanced with increasing water temperature. Likewise, the percentage of organic decomposition also increases with higher temperature
Whole exome sequencing of ALMS1 gene identified a novel pathogenic homozygous mutation (c.3132_3133delAC/p.Gln1045ValfsTer2) in a turkish family
No full textBackgroud: Alstrom syndrome (AS) is a rare autosomal recessive disorder caused by pathogenic mutation in ALMS1 (ALMS1 centrosome and basal body associated protein) gene. Case Presentation: A 13.5-year-old male patient, who was born from consanguineous parents of Turkish descent, applied due to the complaint of obesity and non palpable testes. He had optic atrophy and hearing loss. His weight and body mass index were over 97th percentile. The fasting blood glucose level of the patient was 111 mg/dl and the patient had high level of insulin. Because AS was considered, genetic analysis of the ALMS1 gene was performed and a homozygous pathogenic (Class-II) mutation c.3132_3133delAC/ p.Gln1045ValfsTer2 was detected in the exon 8 region of the ALMS1 gene. His mother was heterozygous carrier of the same mutation. Conclusion: A novel c.3132_3133delAC mutation in ALMS1 gene cause clinical findings of AS such as obesity, reduced visual acuity, hearing loss and other systems manifestations
The adsorption performance of magnetic gelatin nanofiber for Orange G removal
No full textIn this work, the usability of magnetic gelatin nanofiber (MGNF) for anionic dye removal was investigated in the aqueous solution. For this aim, the MGNF was prepared using the electrospinning technique with the addition of Fe3O4 nanopowders. After the characterization of MGNF with Fourier transform infrared spectroscopy, swelling test, scanning electron microscope, and energy-dispersive X-ray analysis, the adsorption performance of MGNF against the dye molecule, Orange G, was examined by changing the pH of the media, the dye concentration, and the ionic strength. The experimental results showed that the maximum adsorbed amount of Orange G was found as 15.6 mg/g at pH 3 value and the Orange G adsorption behavior was endothermic, physical, and suited to the Langmuir adsorption isotherm model. The adsorption kinetic of Orange G was evaluated with the pseudo-first-order, the pseudo-second-order, and the Elovich kinetic models and the pseudo-second-order model results fitted the experimental findings as compared to the other models. The affordable magnetic adsorbent was capable of maintaining its stability after five consecutive adsorption, desorption, and regeneration cycles without significant loss of adsorption capacity
Simple parametrization of (n,d) cross sections using Flerov and Talyzin's formula
No full textThis article aims at providing new cross section data from empirical formulas for the (n,d) reactions of which
experimental measurements at 14–15 MeV energy are not available or limited. If the experimental data for a
nuclear reaction at a given energy are scarce, theoretical calculations and also developing empirical formulas
have a critical importance. Here, we propose a new empirical formula of (n,d) reactions for analysis of the
relationship between the experimental data and the parameters of empirical formula. The present formula was
obtained by using the non-elastic Flerov and Talyzin expression to calculate (n,d) cross sections at 14–15 MeV.
Due to the good overall agreement with the measured cross sections, our empirical formula with polynomial
fitting model including asymmetry parameter can be useful in planning new experiments of (n,d) reactions for
energies around 14 MeV
Carbodicarbenes and striking redox transitions of their conjugate acids: influence of NHC versus CAAC as donor substituents
No full textHerein, a new type of carbodicarbene (CDC) comprising two different classes of carbenes is reported; NHC and CAAC as donor substituents and compare the molecular structure and coordination to Au(I)Cl to those of NHC-only and CAAC-only analogues. The conjugate acids of these three CDCs exhibit notable redox properties. Their reactions with [NO][SbF6] were investigated. The reduction of the conjugate acid of CAAC-only based CDC with KC8 results in the formation of hydrogen abstracted/eliminated products, which proceed through a neutral radical intermediate, detected by EPR spectroscopy. In contrast, the reduction of conjugate acids of NHC-only and NHC/CAAC based CDCs led to intermolecular reductive (reversible) carbon–carbon sigma bond formation. The resulting relatively elongated carbon–carbon sigma bonds were found to be readily oxidized. They were, thus, demonstrated to be potent reducing agents, underlining their potential utility as organic electron donors and n-dopants in organic semiconductor molecules
Examination of emotional eating behaviors and emotional appetites of freestyle and greco-roman style wrestlers
No full textBu çalışmanın amacı serbest ve grekoromen stil erkek güreşçilerin duygusal yeme davranışları ve duygusal iştahları arasındaki ilişkiyi incelemektir. Araştırmaya serbest ve grekoromen stilde 2020/2021 sezonunda güreşen müsabık erkek güreşçiler oluşturmaktadır. Araştırmacı tarafından hazırlanan kişisel bilgi formu ve Nolan ve arkadaşları (2010) tarafından geliştirilen, Demirel ve arkadaşları (2014) tarafından Türkçe'ye uyarlaması yapılan "Duygusal İştah Anketi" ve Doğan ve arkadaşları (2011) tarafından geliştirilen "Duygusal Yeme Ölçeği" kullanılmıştır. Araştırmada elde edilen verilerin analizi SPSS 26 istatistik programı ile yapılmıştır. Sporcuların ikamet, eğitim, öğün, medeni durum, düzenli kahvaltı yapma ve ek takviye alma değişkenleri duygusal yeme ve duygusal iştah ölçeklerinde istatistiksel olarak anlamlı fark olmadığı görülmüştür (p>0.05). Duygusal iştah negatif durum ile gerginlik durumlarında yeme ve olumsuz duygularla başa çıkabilmek için yeme arasında pozitif yönde bir ilişki vardır. Duygusal iştah pozitif durum ile kendini kontrol edebilme ve uyaran karşısında kontrol alt boyutlarında pozitif yönde anlamlı bir ilişki vardır. Duygusal iştah pozitif duygu ile gerginlik durumlarında yeme ve uyaran karşısında kontrol alt boyutlarında pozitif yönde anlamlı bir ilişki vardır. Duygusal iştah negatif duygu ile gerginlik durumlarında yeme, olumsuz duygularla başa çıkabilmek için yeme, kendini kontrol edebilme ve uyaran karşısında kontrol arasında pozitif yönde anlamlı bir ilişki olduğu tespit edilmiştir. Bu sonuçlara göre sporcuların duygusal yeme ve duygusal iştahları herhangi bir değişkene göre değişmemektedir.The aim of this study was to examine the relationship between emotional eating behaviours and emotional appetite of freestyle and gridiron style male wrestlers. Competitive male wrestlers who wrestled in the 2020/2021 season in the freestyle and gridiron style were included in the study. Personal information form prepared by the researcher, "Emotional Appetite Questionnaire" developed by Nolan et al. (2010) and adapted into Turkish by Demirel et al. (2014) and "Emotional Eating Scale" developed by Doğan et al. (2011) were used. The data obtained in the study were analysed with SPSS 26.0 package programme. It was found that there was no statistically significant difference in the emotional eating and emotional appetite scales of the athletes in terms of residence, education, meal, marital status, eating breakfast regularly and taking supplements (p>0.05). There is a positive correlation between negative emotional appetite and eating in situations of tension and eating to cope with negative emotions. There is a significant positive relationship between positive emotional appetite and self-control and control in the face of stimuli sub-dimensions. There is a significant positive relationship between emotional appetite positive emotion and eating in situations of tension and control over stimuli sub-dimensions. It was determined that there was a significant positive relationship between emotional appetite and negative emotion and eating in tension situations, eating to cope with negative emotions, selfcontrol and control in the face of stimuli. According to these results, emotional eating and emotional appetite of athletes do not change according to any variable
Analysis of Consumer Behavior towards Electric Vehicles: Intentions, Concerns, and Policies
Get PDFDespite the acceptance of electric vehicles (EVs) by consumers in developed countries, consumers' intentions towards these smart devices (SD) and the steps that can be taken to expand in this market continue to be investigated in developing countries such as Turkey. In this study, policies and incentives for the purchase of Electric Vehicles in different countries were examined, consumer concerns before the adoption of SDs were evaluated, and then consumer intentions in adopting EVs with models such as reasoned action theory, planned behavior theory, and technology acceptance model were evaluated with bibliometric analysis through conducted studies. Data from 63 publications accessed from Scopus, Web of Science, and DergiPark databases were used in the field mapping process. The results provide insights into increasing the market share of electric vehicles, which are critical in reducing the carbon footprint, by recommending the issues that need to be highlighted to the industry and researchers
Oghuz elements in the Divan of the Yusuf Emîrî
Get PDFX. yüzyılda Orta Asya’daki Türk coğrafyasında yaşanan siyasi ve sosyal gelişmeler doğal olarak Türk dilini de etkilemeye başlamış ve XIII. yüzyıla kadar tek olan yazı dilinde bölünmeler başlamıştır. Batıya doğru bir göç çizgisi takip eden Türk boyları farklı bölgelere dağılarak yeni yurtlar edinmişlerdir. Ortak yazı dilinin kullanıldığı kültür çevresinden uzaklaşan boyların ortaya çıkan yazı dili ihtiyaçlarının dil dışı etmenlerle birleşmesi Türk dilinin farklı kollara bölünmesine zemin hazırlamıştır. Türk dilinin yeni kollarının ortaya çıkmasında Harezm bölgesinin önemli bir yeri vardır. XI.-XII. yüzyıllarda Harezm bölgesine başta Oğuzlar olmak üzere gelen Kıpçaklar ve Kanglılar gibi birçok Türk boyu sayesinde bölgedeki demografik üstünlük Türklerin lehine değişince, bölge Türkleşmeye başlamıştır. Bu gelişmelere paralel olarak bölgede ortaya çıkan ve farklı lehçelerden özellikler taşıyan Harezm Türkçesi Karahanlı Türkçesiyle Çağatay Türkçesi arasında köprü görevi üstlenmiştir. XV. yüzyılın sonlarında Asya’da Timur’un siyasi birliği sağlamasıyla birlikte Çağatay Türkçesi, Doğu Türklüğünün ortak dili durumuna gelirken çoğunluğu Oğuzlardan oluşan Anadolu sahasındaki Türk toplulukları da Osmanlı Türkçesini kullanmaya başlamışlardır. Her iki sahada eser veren şair ve yazarlar arasında etkileşimler olmuş, bu etkileşim dönem metinlerine ses, şekil ve söz varlığı düzeyinde yansımıştır. Klasik öncesi Çağatay Türkçesi döneminde yazılan eserlerde Oğuzca unsurlarla sıkça karşılaşılmaktadır. Bu dönemin önemli isimlerinden Yusuf Emîrî de şiirlerinde Oğuzca özelliklere yer veren şairlerdendir. Bu çalışmada Yusuf Emîrî’nin Kâzım Köktekin tarafından hazırlanan divanı Oğuzca özellikler açısından ele alınmış ve divanda Oğuzcaya yönelik görülen etkilenmenin boyutu ortaya konmuştur. Divanda tespit edilen Oğuzca ses, şekil ve söz varlığına ait unsurlar karşılaştırmalı olarak verilmiştir.In the X. century the political and social developments in the Turkish geography in Central Asia naturally began to affect the Turkish language, and in the written language, which was the only one until the XIII. century, divisions began. The Turkish tribes, who followed a migration line to the west, dispersed to different regions and acquired new homelands. The combination of the emerging written language needs of the tribes, which moved away from the cultural environment in which the common written language is used, with non-linguistic factors paved the way for the division of the Turkish language into different branches. The Harezm region has an important place in the emergence of new branches of the Turkish language. In XI.-XII. centuries thanks to the Turkish tribes such as Kipchak, Kanglı, and especially the Oghuz, who came to the Harezm region the demographic superiority in the region changed in favor of the Turks and the region started to become Turkic in this process. In parallel with these developments, Harezm Turkish, which emerged in the region, acted as a bridge between Karakhanid Turkish and Chagatai Turkish. At the end of the XV. century, with Timur's political unity in Asia, Chagatai Turkish became the common language of the Eastern Turks, while the Turks in the Anatolian area, mostly Oghuz, started to use Ottoman Turkish. There were interactions between poets and writers who worked in both fields, and this interaction was reflected in the texts of the period at the level of sound, form and vocabulary. Oghuz elements are frequently encountered in the works written in the pre-classical Chagatai Turkish period. Yusuf Emîrî, one of the important names of the pre-classical Chagatai Turkish period, is one of the poets who include some language features of Oghuz in his poems. In this study, the divan of Yusuf Emîrî prepared by Kâzım Köktekin, was handled in terms of Oghuz features and the extent of the influence on Oghuz in the divan was revealed. The elements of Oghuz phonetic, morphological and lexicology identified in the Divan are given comparatively
Digital transformation of journalism and its effects on sports journalism: The example of YouTube
No full texton yıllarda bireylerin habere ulaşma süreç ve yöntemlerinde önemli farklılıklar yaşandığı, geleneksel anlamda yapılan gazetecilik faaliyetlerinin etkinlik alanı daralırken dijital medyanın her geçen gün biraz daha ön plana çıktığı gözlemlenmektedir. Bu çalışmada toplumların hayatında son derece önemli bir konumda yer alan internet teknolojisinin gelişim sürecinden, gazetecilik mesleğine getirdiği yeniliklerden, yeni medya kavramından ve medya sektöründe yaşanmakta olan dijital dönüşümün spor haberciliğine olan etkilerinden bahsedilmektedir. Çalışmanın araştırma kısmında nitel araştırma yöntemlerinden yarı yapılandırılmış görüşme tekniği kullanılmış ve daha önce geleneksel medya kuruluşlarında çalışmış olup günümüzde dijital medyada spor haberciliği yapmakta olan profesyonel spor gazetecileriyle görüşmeler gerçekleştirilmiştir. Gazetecilerin geleneksel spor medyası ve dijital spor medyası arasında gözlemledikleri farklılıkların birinci ağızdan değerlendirildiği bu çalışmada, dijital medyada üretilen içeriklerin kalitesinin geleneksel medyaya oranla daha iyi seviyelerde olduğu, dijitalde çalışmanın gazetecileri pozitif yönde etkilediği, ilerleyen yıllarda televizyon, gazete ve radyo gibi geleneksel medya araçlarının yerlerini tamamıyla dijital platformlara bırakabileceği yönünde bulgulara ulaşılmıştır.In recent years, there have been significant differences in the processes and methods of access the news. It is observed that while the field of journalism activities carried out in the traditional sense is shrinking, digital media is coming to the forefront more and more every day. In this study, the development process of internet technology, which occupies an extremely important position in the life of societies, the innovations it brings to the journalism profession, the concept of new media and the effects of the digital transformation in the media sector on sports journalism are mentioned. In the research part of the study, the semi-structured interview technique, which is one of the qualitative research methods, was used. Interviews have been conducted with professional sports journalists who have previously worked in traditional media organizations and are currently doing sports reporting in digital media. In this study, which it is aimed to evaluate first-hand the differences observed by journalists between traditional sports media and digital sports media, a wide variety of findings were reached, such as the quality of the content produced in digital media is at a better level than the traditional media, working in digital media has a positive effect on journalists and traditional media tools such as television, newspaper and radio may be completely replaced by digital platforms in the coming years
The mediating effects of metacognition and creative thinking on the relationship between teachers' autonomy support and teachers' self-efficacy
No full textA bulk of research has shown strong relationships between metacognition, creative thinking, autonomy support, and self-efficacy among teachers. However, we could not find research with a large sample of teachers exploring the mediating effects of creative thinking and metacognition on the relationship between autonomy support and self-efficacy. A need for a novel structural equation model (Covariance-based) underlying psychological rationality of said relationships was deemed actual. To that end, firstly the effects of teachers' autonomy support (opportunity and decision-making) on teachers' creative thinking, metacognition, and self-efficacy were tested. Then, the mediating effects of metacognition and creative thinking on the relationship between teachers' autonomy support and teachers' self-efficacy were explored. A simple random-sampling method was utilized to gather 787 teachers' data. The results revealed that decision-making and autonomy opportunity predicted creative thinking, metacognition, and self-efficacy positively and meaningfully. Subsequently, creative thinking as well as metacognition had mediating effects on the effects of autonomy opportunity and decision-making on self-efficacy. In closing, for boosting teachers' skills in autonomy support and self-efficacy, attention should be given to fostering their creative thinking as well as metacognition. The study provides implications and suggestions for research on school psychology and improvement