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Burnout and impostor syndrome in tourism academicians: The regulatory role of self-esteem
Get PDFBu araştırmanın amacı turizm akademisyenlerinde tükenmişliğin impostor sendromu üzerindeki etkisinde öz saygının düzenleyici rolünü incelemektir. Araştırmanın evrenini Türkiye'de bulunan turizm akademisyenleri oluşturmakta ve bu bağlamda ulaşılabilen 214 katılımcı bulunmaktadır. Google form üzerinden oluşturulan anket formu ile birlikte mail yoluyla turizm akademisyenlerine mail atılmıştır. Katılımcıların demografik özelliklerini belirlemek ve dağılımlarını incelemek amacıyla frekans ve yüzde analizleri, ölçek ifadelerine ilişkin ortalama ve standart sapma değerleri, güvenirlik ve geçerlik analizleri, korelasyon analizi, hipotez testleri ve farklılık testleri yapılmıştır. Turizm akademisyenleri üzerinde yapılan araştırma sonucunda tükenmişlik sendromunun alt boyutlarını oluşturan duygusal tükenme, duyarsızlaşma ve kişisel başarı hissinin impostor sendromu üzerinde anlamlı bir etkisi olduğu tespit edilmiştir. Ayrıca öz saygının impostor sendromu üzerinde yine anlamlı bir etkisi olduğu belirlenmiştir. Son olarak çalışmanın temel amacı kaspamında incelenen düzenleyici etki olarak tükenmişliğin impostor sendromu üzerindeki etkisinde öz saygının bir rolü olmadığı saptanmıştır. Elde edilen sonuçlar çerçevesinde bulgular yorumlanmış ve gelecek araştırmalar için öneriler sunulmuştur.The aim of this study is to examine the moderating role of self-esteem in the effect of burnout on impostor syndrome among tourism academicians. The universe of the study consists of tourism academicians in Turkey and there are 214 participants that can be reached in this context. The survey form created via Google form was sent to tourism academicians via e-mail. Frequency and percentage analyses, mean and standard deviation values related to scale expressions, reliability and validity analyses, correlation analyses, hypothesis tests and difference tests were conducted in order to determine the demographic characteristics of the participants and examine their distributions. As a result of the research conducted on tourism academicians, it was determined that emotional exhaustion, desensitization and sense of personal accomplishment, which constitute the sub-dimensions of burnout syndrome, had a significant effect on impostor syndrome. It was also determined that self-esteem had a significant effect on impostor syndrome. Finally, it was determined that self-esteem did not have a role in the effect of burnout on impostor syndrome as the moderating effect examined within the scope of the main purpose of the study. The findings were interpreted within the framework of the obtained results and suggestions were presented for future research
BOSNALI EDÂYÎ’NİN MİRACİYE’Sİ
Get PDFFollowing the adoption of Islam by the Turks, the changes brought about by the Islamic faith affected Turkish literature just as it did many other fields. In particular, various issues such as the life of the Prophet Muhammad, his outstanding characteristics and miracles were reflected in literary texts. In this regard, different literary genres such as sirah, hilya, mawlid, forty ahadith, mirajname have been composed in classical Turkish literature, the miracle of Miraj, the Prophet Muhammad's journey from Masjid al-Haram to Masjid al-Aqsa and his ascension from there to the heavens, has been one of the most frequently covered subjects. The miracle of Miraj, which is regarded as one of the greatest miracles of the Prophet Muhammad, was treated as a subject in divans and masnavis, and a large number of individual works called "mirajname" or "mirajiyah", both prose and verse, were written on the subject of miraj. One of these mirajiyahs is Edayi's mirajiyah, which is also the subject of this study. The information about Edayi, whose name cannot be found in the tazkiras and biographical sources, is limited to the fact that he was from Sarajevo and lived in the 16th century. The mirajiyah belonging to Edayi is located in Gazi Husrev-Beg Library under the title “Mi͑rāciyye-i Edāyī Efendi” between folios 11b-12b and 15a-16b in the mecmua (manuscript poetry anthology) registered under the number R-4007. Written in form of qasida, mirajiyah consists of 121 couplets. In our study, the transcribed text and criticism of this mirajiyah are presented. It is aimed to contribute to the mirajiyah genre by presenting and introducing this mirajiyah. © 2025 Elsevier B.V., All rights reserved
GÜVENLİKLEŞTİRME TEORİSİ KAPSAMINDA ABD BAŞKANLIK DOKTRİNLERİNİN ULUSLARARASI GÜVENLİĞE ETKİSİNİN ANALİZİ: BUSH DOKTRİNİ ÖRNEĞİ
Get PDFThe purpose of this study and its contribution to literature is to analyze the impact of US presidential doctrines on international security within the scope of securitization theory, through the example of the Bush Doctrine. The reason for using securitization theory is that the formation and implementation of US presidential doctrines are sufficiently explained by this theory. High priority issues that are securitized and brought to the level of threat and require action are gradually established as legitimate grounds in the eyes of domestic and foreign public opinion. The most important finding of the study is that presidential doctrines have a very important place in the background of the strong foreign policy of the United States. As a result, from the perspective of securitization theory, it has been understood that the presidential doctrines in the US Foreign Policy have brought about major changes in international security, as in the example of the Bush Doctrine. It has been determined that the US has dragged international security into great chaos after the Bush Doctrine and that its securitization policies towards Iraq and Afghanistan have failed.Bu çalışmanın amacı ve literatüre katkısı, güvenlikleştirme teorisi kapsamında ABD başkanlık doktrinlerinin uluslararası güvenliğe etkisinin, Bush Doktrini örneği üzerinden analiz edilmesidir. Güvenlikleştirme teorisinin kullanılmasının nedeni; ABD başkanlık doktrinlerinin oluşumunun ve uygulanmasının, bu teori tarafından yeterince açıklanıyor olmasıdır. Başkanlık doktrinleri ile güvenlikleştirilip tehdit seviyesine çıkarılan ve eylem gerektiren yüksek öncelikli konuların, iç ve dış kamuoyu nezdinde zamanla meşru zemini oluşturulmaktadır. Çalışmanın en önemli bulgusu, ABD’nin güçlü dış politikasının arka planında başkanlık doktrinlerinin çok önemli bir yeri bulunduğudur. Sonuç olarak güvenlikleştirme teorisi perspektifinden ABD Dış Politikasında yer alan başkanlık doktrinlerinin, Bush Doktrini örneğinde de olduğu gibi, uluslararası güvenlikte büyük değişimler meydana getirdiği anlaşılmıştır. Bush Doktrini sonrasında ABD’nin uluslararası güvenliği büyük bir kaosa sürüklediği, Irak ve Afganistan’a yönelik güvenlikleştirme politikalarının başarısız olduğu tespit edilmiştir
Design and implementation of a no-code web development platform with an ai-supported large language model
Get PDFBu tez çalışması, Yapay Zeka (YZ, Artificial Intelligence – AI) destekli dil modellerinin kodsuz yazılım geliştirme süreçlerindeki potansiyelini ele almakta ve bu alandaki inovatif bir yaklaşımı temsil eden ZOA platformunun geliştirilmesi ve değerlendirilmesini kapsamaktadır. ZOA, kullanıcılara doğal dil girdileriyle modern web bileşenleri oluşturma imkânı sunan bir kodsuz platform olarak tasarlanmıştır. Platform, özellikle HTML, CSS ve JavaScript tabanlı çıktılar üretmek için Doğal Dil İşleme (DDİ, Natural Language Processing – NLP) tekniklerinden faydalanmaktadır. Araştırmanın ilk aşamasında, literatürde mevcut kodsuz platformların avantajları ve sınırlılıkları incelenmiş, bu platformların yazılım geliştirme süreçlerine etkileri detaylandırılmıştır. Yapılan literatür taramasında, YZ destekli kodsuz platformların maliyet ve zaman açısından önemli avantajlar sağladığı ancak kullanıcı deneyimi ve ölçeklenebilirlik gibi alanlarda iyileştirme potansiyeli bulunduğu tespit edilmiştir. ZOA'nın geliştirilme sürecinde, Python tabanlı bir API ve React teknolojisi ile oluşturulmuş bir kullanıcı arayüzü entegre edilmiştir. Model, Tailwind CSS kullanılarak derlenen geniş bir HTML ve CSS veri seti ile eğitilmiş ve kullanıcı girdilerini anlamlandırarak dinamik çıktılar üretebilecek şekilde optimize edilmiştir. Eğitim sürecinde, veri setinin çeşitliliği ve modelin performansına etkisi detaylı bir şekilde analiz edilmiştir. Sonuç olarak, ZOA'nın performansı çeşitli test senaryolarıyla değerlendirilmiş ve platformun kullanıcı dostu yapısı ile geliştirme süreçlerini demokratikleştirme potansiyeline sahip olduğu ortaya konulmuştur. Çalışmanın bulguları, kodsuz platformların gelecekteki geliştirme süreçlerinde YZ ve DDİ entegrasyonunun önemini vurgulamaktadır. Ayrıca, bu çalışma ZOA'nın başarımını artırmak için kullanılabilecek farklı veri setleri ve optimizasyon yöntemleri üzerine öneriler sunmaktadır.This thesis examines the potential of AI-supported language models in no-code software development processes and focuses on the development and evaluation of the ZOA platform, which represents an innovative approach in this field. ZOA is designed as a no-code platform that allows users to create modern web components using natural language inputs. The platform particularly leverages Natural Language Processing (NLP) techniques to generate HTML, CSS, and JavaScript-based outputs. In the initial phase of the research, the advantages and limitations of existing no-code platforms were analyzed, and their impacts on software development processes were detailed. The literature review identified that AI-supported no-code platforms provide significant cost and time advantages while revealing potential areas for improvement, such as user experience and scalability. During the development of ZOA, a Python-based API and a React-powered user interface were integrated. The model was trained with an extensive HTML and CSS dataset compiled using Tailwind CSS and optimized to interpret user inputs and produce dynamic outputs. The diversity of the dataset and its impact on the model's performance were thoroughly analyzed during the training process. In conclusion, the performance of ZOA was evaluated through various test scenarios, demonstrating its user-friendly structure and potential to democratize development processes. The findings highlight the importance of integrating AI and NLP in future no-code platform development processes. Furthermore, this study provides recommendations for improving ZOA's performance through alternative datasets and optimization techniques
Comparison of LED lighting with conventional lighting in terms of energy efficiency: Düzce University Konuralp Campus case
Get PDFBu tez çalışmasında, Düzce Üniversitesi'nin bir amfisinin ve kampüs içerisindeki bir yolun aydınlatma sistemleri, LED ve floresan lambalar kullanılarak DIALux yazılımı ile simüle edilmiştir. Çalışmada, farklı aydınlatma senaryoları ele alınarak enerji tüketimi, maliyet etkinliği ve performans karşılaştırmaları yapılmıştır. Simülasyon sonuçları, LED lambaların enerji tasarrufu, ışık kalitesi ve uzun vadeli maliyet etkinliği açısından floresan lambalara üstünlük sağladığını göstermiştir. Özellikle yol aydınlatmasında, LED teknolojisinin daha verimli olduğu ve uzun vadede maliyetleri önemli ölçüde düşürdüğü tespit edilmiştir. Araştırmanın bulguları, LED teknolojisinin yüksek başlangıç maliyetlerine rağmen uzun vadede enerji ve maliyet tasarrufu sağladığını, çevresel etkileri azalttığını ve sürdürülebilir bir aydınlatma çözümü sunduğunu ortaya koymaktadır. Bu bağlamda, üniversiteler ve kamu kurumları gibi büyük ölçekli alanlarda enerji verimli aydınlatma sistemlerinin uygulanması gerektiğini vurgulamaktadır. Düzce Üniversitesi Konuralp Yerleşkesi özelinde gerçekleştirilen bu çalışma, LED teknolojisinin hem ekonomik hem de çevresel avantajlarını somut verilerle ortaya koyarak, enerji verimliliği projelerinin hayata geçirilmesinde yol gösterici bir rehber sunmaktadır. Sonuç olarak, bu tez, LED teknolojisinin üniversite kampüsleri gibi büyük ölçekli uygulamalar için uygulanabilirliğini değerlendirirken, sürdürülebilirlik hedeflerine ulaşmada LED aydınlatma sistemlerinin önemini açıkça ortaya koymaktadır. Gelecek çalışmalarda, farklı aydınlatma teknolojilerinin ve senaryolarının daha ayrıntılı analiz edilmesi ve LED sistemlerinin daha verimli hale getirilmesine yönelik yenilikçi yaklaşımların geliştirilmesi önerilmektedir.This thesis focuses on the lighting systems of an amphitheater and a campus road at Düzce University, simulated using DIALux software with LED and fluorescent lamps. The study evaluates various lighting scenarios to compare energy consumption, cost efficiency, and performance. Simulation results demonstrate that LED lamps outperform fluorescent lamps in terms of energy savings, light quality, and long-term cost efficiency. Notably, LED technology was found to be more efficient and significantly more cost-effective over time, particularly in road lighting applications. The findings highlight that, despite the high initial costs, LED technology offers substantial energy and cost savings in the long term, reduces environmental impacts, and provides a sustainable lighting solution. This underscores the necessity of implementing energy-efficient lighting systems in large-scale facilities such as universities and public institutions. Conducted specifically at the Düzce University Konuralp Campus, this study provides concrete evidence of the economic and environmental advantages of LED technology, serving as a guide for the implementation of energy efficiency projects. In conclusion, this thesis evaluates the applicability and benefits of LED technology in large-scale applications like university campuses, emphasizing its critical role in achieving sustainability goals. Future studies are recommended to conduct a more detailed analysis of different lighting technologies and scenarios and to develop innovative approaches to enhance the efficiency of LED systems
In silico investigation of tetrazole and oxadiazole compounds as inhibitors of the dengue virus NS5 protein: Synthesis, DFT, ADME and molecular docking analysis
Get PDFThis study investigates the therapeutic potential of novel tetrazole and oxadiazole derivatives targeting the Dengue virus NS5 protein through an integrated computational and experimental approach. A series of nitrilesubstituted 1,4-dihydropyridine (1,4DHPs) derivatives were synthesized and converted into tetrazole and 1,3,4-oxadiazole analogs using established protocols. Structural characterization was performed via NMR, FT-IR, and elemental analysis. Molecular docking studies against the NS5 protein (PDB ID: 6KR2) revealed superior binding affinities for several compounds (Delta G = -7.18 to -9.58 kcal/mol), with compound 5 exhibiting the strongest interaction (Delta G = -9.58 kcal/mol, theoretical IC50 = 94.64 nM), outperforming the reference ligand SAH (Delta G = -7.18 kcal/mol). ADME profiling demonstrated favorable drug-likeness, acceptable solubility, bloodbrain barrier penetration, and CYP450 metabolic stability. DFT analyses elucidated electronic properties, including HOMO-LUMO gaps (2.72-4.80 eV) and electrophilicity indices (13.5-23.6 eV), correlating with observed bioactivity. Toxicity predictions identified compound-specific liabilities requiring optimization. These findings highlight the promise of tetrazole-oxadiazole hybrids as potent NS5 inhibitors, warranting further preclinical validation for Dengue therapeutic development.Scientific and Technological Research Council of Turkey (TUBITAK) [109T553]This work was produced from the MS Thesis Synthesis Of 1,3,4-Oxa-diazole and Tetrazole Substituted 1,4-Dihydropyridine and Pyridine Compound. This study was supported by Scientific and Technological Research Council of Turkey (TUBITAK) (1002 Number: 109T553) and we thank them for financial support
Torasik Omurgada Limbus Vertebra: Bir Vaka Sunumu
Get PDFThe limbus vertebra, first described by Christian Schmorl in 1927, is considered a variant of a normal vertebra in the literature. It is a triangular fragment of bone that separates from the anterosuperior corner of the vertebra and is usually discovered incidentally via X-ray. Typically, it is asymptomatic due to its location. A limbus vertebra can be mistaken for a fracture, discitis, Schmorl's node, or tumor, which may lead to unnecessary surgical intervention. Therefore, it should be included in the differential diagnosis, especially in patients with a history of trauma, when their clinical condition is assessed. Limbus vertebrae most commonly affect the lumbar spine and, less frequently, other regions of the vertebral column. In this case report, an incidental finding of a limbus vertebra in the thoracic spine in a 30-year-old female patient was presented. © 2025 Elsevier B.V., All rights reserved
TÜRKİYE’DE SANAYİ ÜRETİM ENDEKSİ, KENTLEŞME, BİRİNCİL ENERJİ ARZI, KARBON AYAK İZİ VE DIŞ TİCARET AÇIĞI ARASINDAKİ İLİŞKİ
Get PDFArtan nüfus ve sonsuz olan insan ihtiyaçları karşısında sınırlı olan doğal kaynaklar tükenme tehlikesiyle karşı karşıya kalmıştır. Türkiye’de bunlara ek olarak birincil enerji kaynakları büyük oranda ithalat ile temin edildiği için bu durum dış ticaret açığına yol açmaktadır. Bu perspektifle Türkiye’de mevcut durumun tespit edilebilmesi açısından 1990-2022 döneminde birincil enerji arzı, dış ticaret açığı, kentleşme, sanayi üretim endeksi ve karbon ayak izi ilişkisinin analiz edilmesi önem arz etmektedir. Çalışmada ARDL sınır testi bulgularına göre değişkenler arasında eşbütünleşme ilişkisi gözlenmiştir. Toda-Yamamoto nedensellik testinin bulgularına göre Türkiye’de 1990-2022 dönemi arasında dış ticaret açığı ve karbon ayak izinden birincil enerji arzına; birincil enerji arzından kentleşmeye; birincil enerji arzı, dış ticaret açığı ve karbon ayak izinden sanayi üretim endeksine ve son olarak sanayi üretim endeksinden karbon ayak izine doğru nedensellik ilişkisi tespit edilmiştir
Weighted fractional Euler-Maclaurin inequalities for convex and bounded variation functions via Riemann-Liouville integrals
Get PDFThis paper develops weighted Euler-Maclaurin-type inequalities using Riemann-Liouville fractional integrals for classes of differentiable convex functions and functions of bounded variation. The work begins with a foundational integral equality that incorporates a positive weighting function, which serves as the basis for constructing these Euler-Maclaurin-type inequalities. Through this approach, we derive specific fractional inequalities for convex functions and extend them to functions of bounded variation, addressing key accuracy bounds and demonstrating flexibility across applications. Some remarks and particular cases are discussed to provide deeper observation, showcasing variations of the derived inequalities under particular function classes and conditions. This exploration offers a comprehensive view of the potential extensions of weighted fractional inequalities within the context of fractional calculus.Princess Nourah Bint Abdulrahman University [RGP.2/163/46, PNURSP2025R337]Deanship of Research and Graduate Studies at King Khalid UniversityThe authors extend their appreciation to the Deanship of Research and Graduate Studies at King Khalid University for funding this work through the Research Groups Program under grant (RGP.2/163/46). The authors would like to acknowledge the Princess Nourah bint Abdulrahman University Researchers Supporting Project number (PNURSP2025R337)
Optimization of low-velocity impact behavior of FML structures at different environmental temperatures using taguchi method and grey relational analysis
Get PDFCarbon fiber-reinforced Aluminum Laminate (CARALL) is a new generation of Fibre Metal Laminate (FML) material. This study investigates the low-velocity impact behavior of CARALL structures at different environmental temperatures (-40 degrees C, 23 degrees C, and 80 degrees C). Two different groups of CARALL composite structures with varying fiber orientations were produced by hot pressing in a 3/2 arrangement: C1 (Al/0 degrees 90 degrees/Al/90 degrees 0 degrees/Al) and C2 (Al/0 degrees 0 degrees/Al/0 degrees 0 degrees/Al). Low-velocity impact tests were conducted at 23 J, 33 J, and 48 J energy levels using a & Oslash;20 mm spherical impactor tip. The area of damage was detected by ultrasonic C-Scan. In addition, analysis of variance (ANOVA) was applied to reveal the influential parameters and their effect levels. After conducting experiments using the Taguchi L18 test set, it was observed that the C2-coded specimen yielded better results in terms of maximum peak load, maximum displacement, and damage area. While the decrease in temperature increased the damage and maximum peak load, the increase in temperature did not cause a significant change in the maximum peak load. The primary damage mechanisms observed in damage investigations were matrix cracks and delamination between composite layers. Although delamination is present between the Al/CFRP layer, it is not significant. According to ANOVA results, impact energy was the most effective parameter for maximum impact force, maximum displacement, and damage area, with contribution rates of 81%, 74%, and 76%, respectively. The optimal experimental conditions (23 degrees C temperature and 23 J impact energy with the C1-coded sample) were determined using grey relational analysis based on principal component analysis.Duezce University Research Fund [2020.06.05.1123, 2021.06.05.1191]The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study is supported by Duezce University Research Fund Project Number: (2020.06.05.1123 and 2021.06.05.1191)