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Article Citation - WoS: 11Citation - Scopus: 11Experimental and Modeling Studies of a High-Temperature Electrochemical Hydrogen Compressor(Pergamon-elsevier Science Ltd, 2024) Durmus, Gizem Nur Bulanik; Kuzu, Cemil; Devrim, Yilser; Colpan, C. Ozgur; Bulanık Durmuş, Gizem NurSome non-technical factors such as economics and logistics prevent hydrogen (H2) tech-nologies from becoming more widespread in daily life. Today, the prevalence of H2 tech-nologies requires new technological developments. Electrochemical hydrogen compressors (ECHC) are of great interest due to their ability to pressurize and purify in one step. In this study, the electrochemical H2 compression performance of high phosphoric acid (PA) doped poly 2,2-m-phenylene-5,5-benzimidazole (PBI) membrane-based HT-ECHC under high temperature and non-humid conditions was investigated through both an experimental and a numerical approach. The H2 compression capacity of HT-ECHC at different operating voltages was examined by performance tests at 160 degrees C, and it was determined that the electrochemical compression performance increased with increasing operating voltage. It was observed that the current density values also increased with increasing voltage, and it was determined that a current density of 61.2 A was obtained at 1 V. As a result of the tests, H2 was successfully compressed from atmospheric pressure to 60 bar by HT-ECHC without any gas leakage. The results of the developed model were compared with the experimental performance test data, and the variation of molar flow, cell voltage, and cell efficiency over time was examined. It has been determined that the back diffusion from the cathode to the anode in the cell increases with the increasing operating voltage of HT-ECHC and therefore the cell efficiency decreases. It has been evaluated that the developed model and experimental results are in good agreement. (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.Master Thesis Avrupa'da Azınlık Hakları: Almanya ve Fransa Örneği(2022) Kürkcü, Mehmet; Yılmaz, GözdeAzınlıklar tarihin her döneminde yapılan fetihler, değişen sınırlar ve kurulan yeni devletler nedeniyle var olmuşlardır. Ulus-devlet anlayışının ortaya çıkışıyla azınlıklar doğrudan sorunlar haline gelmiştir. Özellikle 18. yüzyılın sonlarından itibaren Kıta Avrupası'na yayılan ulusçuluk fikirleri imparatorlukları parçalamış, ulus-devlet fikirleri etrafında kurulan yeni devletlerde azınlık halde kalan gruplar Birinci ve İkinci Dünya Savaşı'nın çıkış sebeplerinden olmuşlardır. Milletler Cemiyeti'nin uyguladığı azınlık politikalarının İkinci Dünya Savaşı'nı çıkardığı düşünüldüğünden, savaştan sonra kurulan yeni düzenin başlarında azınlık hakları görmezden gelinmeye çalışılmıştır. Fakat 1945'ten itibaren azınlık temelli silahlı çatışmaların çıkması Birleşmiş Milletlerin bu konuda önlemler almaya başlamasına neden olmuştur. Soğuk Savaş'ın ardından Balkanlar'da patlak veren azınlık temelli savaşlar Batı Avrupalı devletlerin ve Avrupa'da kurulan uluslararası örgütlerin sorunun çözümü için derhal harekete geçmelerine neden olmuştur. Avrupa merkezli geliştirilen azınlık hakları düzenlemeleri bölgedeki uluslararası örgütler vasıtasıyla insan haklarının bir parçası olarak kabul edilerek özellikle tüm Avrupalı devletlere benimsetilmek istenen bir değere dönüşmüştür. Dolayısıyla çalışmamızın temel amacı, Almanya ve Fransa'nın uluslararası azınlık sözleşmelerine katılımını inceleyerek, bu ülkelerde yaşayan azınlıklar ve bu azınlıklara sağlanan hakları araştırmaktır.Article Role of Latissimus Dorsi-Thoracolumbar Fascia Complex Stretching on Pain and Pain-Related Parameters in Patients With Chronic Low Back Pain: A Randomised Clinical Trial(Wiley, 2025) Ulug, Naime; Kodak, Seyde Busra; Kodak, Muhammed Ihsan; Aslan, Sema NurBackground Fascial stretching is gaining interest as a potential intervention for pain management. However, evidence regarding the effect of latissimus dorsi-thoracolumbar fascia (LD-TLF) complex stretching in patients with chronic low back pain (CLBP) remains limited. Therefore, this study aimed to investigate the effects of LD-TLF complex stretching on pain-related factors and disability in patients with CLBP. Methods Thirty patients with CLBP were randomly assigned to a study group (n = 15; 7 men, 8 women) and a control group (n = 15; 7 men, 8 women). The study group received 4 weeks of LD-TLF complex stretching in combination with conventional physiotherapy, while the control group received conventional physiotherapy only. Outcomes were assessed before and after the interventions, including primary measures of pain pressure thresholds (PPT) at thoracolumbar fascia levels (L1, L3 and 12th costa), and secondary measures included the Pain Sensitivity Questionnaire (PSQ), the effects of pain on daily activities measured by the Brief Pain Inventory (BPI), and disability assessed by the Oswestry Disability Questionnaire (ODQ). Results Pre- and post-treatment PPTs, at the L1, L3 vertebrae and 12th costa levels, demonstrated significant differences between the study group and control groups. Post-treatment thresholds were significantly higher compared to pre-treatment thresholds (p < 0.001, eta p(2) = 0.67; p < 0.001, eta p(2) = 0.61; p < 0.001, eta p(2) = 0.74). Additionally, significant improvements were found in PSC, BPI and ODQ scores in the study group compared to the control group (p < 0.05). Conclusion The results of this study suggest that stretching the LD-TLF complex may be a beneficial addition to the conventional physiotherapy approach for patients with CLBP. Specifically, LD-TLF complex stretching, when used in combination with conventional physiotherapy, appears to provide improved pain thresholds, decreased pain sensitivity and pain during activity, as well as reduced disability compared to conventional physiotherapy alone in patients with CLBP.Article Citation - WoS: 2Citation - Scopus: 2The Detailed Transseptal Puncture Technique for Optimal Closure in Patients With a Patent Foramen Ovale(Frontiers Media Sa, 2024) Ilkay, Erdogan; Saricam, Ersin; Kacmaz, Fehmi; Yakici, Aysel; Koca, Cigdem; Ozeke, Ozcan; Onal, Mehmet ZulkufBackground The closure of a patent foramen ovale (PFO) using transseptal puncture has particular advantages and disadvantages. Thus, transseptal puncture should be re-evaluated in detail. Aims We aimed to assess the effectiveness of the detailed transseptal puncture technique in patients who underwent PFO closure due to cryptogenic stroke or transient ischemic attack in terms of residual shunts and atrial fibrillation. Methods We prospectively analyzed 144 consecutive patients who underwent PFO closure by the detailed transseptal puncture technique between February 2013 and April 2023 in two centers. All of the patients had a >10 mm long-tunnel PFO. Results The procedural success rate was 100%. However, after the procedure, moderate pericardial effusion developed in one patient (0.7%) and an acute pulmonary embolism related to femoral vein thrombosis was observed in one patient (0.7%) during the first month. Complications related to the procedure were noted in two patients (1.4%) during the first month of follow-up. Residual shunts were observed in 1.4% of cases after PFO closure. Conclusion We demonstrated that the detailed transseptal technique is safe and effective for PFO closure. The detailed transseptal PFO closure technique significantly reduced the risk of atrial fibrillation, and the occurrence of residual shunts was significantly low following the closure.Article Makroekonomik ve Sosyo-Politik Endeks Nitelikli Çalışan başına Reel GSYH’yi Nasıl Etkiler? Türk Cumhuriyetleri’nden Kanıtlar(Ahmet Yesevi Univ, 2023) Kucuker, Mustafa Can; Omay, Tolga; Celik, Esref Ugur; Erdal, Fehmi BuğraBu çalışmada, nitelikli çalışan başına reel GSYH düzeyini etkileyen sosyoe- konomik faktörler üzerinde durulmuştur. Bu amaçla Türk Cumhuriyetleri için makroekonomik ve sosyo-politik performans endeksleri oluşturulmuştur. Yeni oluşturulan bu endeksler kullanılarak, nitelikli çalışan başına düşen reel GSYH düzeyinin belirleyicileri literatürde ilk kez analiz edilmektedir. Ampi- rik sonuçlar, belirli eşik düzeylerinin nitelikli çalışan başına reel GSYH düze- yini önemli ölçüde etkilediğini göstermektedir. Sonuç olarak, çalışmada yer verilen ülkelerin politika yapıcıları, ülkelerinin refahı açısından iyi organize edilmiş politikalar yürütmek için makroekonomik ve sosyo-politik perfor- mans endekslerin eşik değerlerini ciddi şekilde göz önünde bulundurmalıdır.Article An Investigation Into The AI-Assisted Visualization Of Children’s Songs: The Case Of Ali Baba’s Farm(Nilgun SAZAK, 2025) Südor, S.; İpekçiler, B.This study aims to visualize children’s songs, which are part of primary-level music education, using AI-supported tools. The objectives of the Ministry of National Education’s music course curriculum were examined, and both the themes to be emphasized in song selection and the pedagogical functions of children’s songs were analyzed. In the literature review, the Web of Science and Google Scholar databases were used. The obtained source data were analyzed with the VOSviewer software to generate conceptual maps, through which thematic trends in the field were identified. In the practical part of the study, the children’s song “Old MacDonald’s Farm” was visualized in detail using two different AI-supported tools: RunwayML and WZRD.ai. In RunwayML, prompt-based scenes were generated using the “text-to-video” feature, and visuals compatible with the lyrics of the song were created. On the WZRD.ai platform, visuals were automatically generated in response to sound waves, and the limitations of the platform were examined. Based on the findings, it was concluded that RunwayML offers more effective results for pedagogical content production, while WZRD. ai, despite its technical capabilities, falls short in delivering child-appropriate visual stimuli. The study also provides a theoretical foundation on synesthesia and discusses how AI tools can be integrated into music education in early childhood and primary school levels. The findings indicate that AI-supported visualization tools have the potential to provide engaging and flexible educational materials that support learning at the primary school level. It is recommended that teacher training programs develop hands-on modules for these tools, and that future research focus on how these technologies can be adapted to various songs, age groups, and learning domains. © © 2025 The Author(s). This is an open access article distributed under the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium or format, provided the original work is properly cited.Master Thesis Fiziksel ve Metaevren İç Mekânlarının Karşılaştırmalı Analizi: The Sandbox Platformunda Louvre Müzesi Örneği(2025) Çuğlan, Gülsüm Kamer; Aykaç, Gökçe NurMetaevren; sanal gerçeklik (VR), artırılmış gerçeklik (AR) ve blok zinciri teknolojilerinin gelişimiyle, fiziksel mekân deneyimlerinin ötesinde yeni bir tasarım ve etkileşim alanı olarak ortaya çıkmıştır. İç mimarlık disiplini açısından bu alan, kullanıcı odaklı mekân kurgularının yeniden tanımlanmasına olanak tanımaktadır. Bu tezde, fiziksel mekânlar ile metaevren mekânları karşılaştırmalı olarak ele alınmış; örnek olay olarak Sandbox platformunda yeniden kurgulanan Louvre Müzesi incelenmiştir. Çalışmada, fiziksel ve sanal Louvre mekânları mekân planlaması, kullanıcı gereksinimleri, mobilya-donatı düzenlemeleri, ergonomi, renk, malzeme ve aydınlatma tasarımı gibi ölçütler üzerinden değerlendirilmiştir. Araştırmada, sistematik literatür taraması ve gözleme dayalı yöntem kullanılmış; fiziksel müze için saha gözlemleri, dijital temsil için ise video kayıtları ve platformun sunduğu kullanıcı senaryoları temel alınmıştır. Elde edilen bulgulara göre metaevren iç mekânları, fiziksel mekânlardan farklı olarak esneklik, deneyim odaklılık ve oyunlaştırma unsurlarıyla öne çıkmakta; kullanıcı etkileşimini daha çok merkeze alan ve sınırları ortadan kaldıran bir tasarım yaklaşımı sunmaktadır. Bununla birlikte, fiziksel mekânlarda öne çıkan ergonomi ve malzeme duyusallığı gibi nitelikler dijital ortamlarda farklı biçimlerde karşılanmaktadır. Sonuç olarak, bu çalışma metaevren mekânlarının iç mimarlık disiplini için geliştirdiği yeni tasarım paradigmasını ortaya koymakta ve fiziksel–sanal mekân etkileşimini iç mimarlık araştırmalarına özgün bir katkı olarak sunmaktadır.Article Citation - Scopus: 1Patient Safety in Healthcare: A Proposal for Ensuring the Use of Regulation-Compliant Safety Devices(Springer Heidelberg, 2025) Bayrak, TuncayMedical devices used in health care should fulfill the requirements of the technical regulations to protect patient health. Difficulties in enforcing stricter rules in the new medical device regulations may negatively affect the continuity of care. This study examines the status of manufacturers' compliance with medical device regulations, based on predefined criteria, and proposes a collaborative action plan and an approach to verify regulatory compliance. We conducted a nationwide survey comprising questions grouped by criteria to understand the status of the manufacturers in terms of compliance with the Medical Device Regulation. Four hundred sixty-seven manufacturers participated in the survey. We achieved a Cronbach's alpha of 0.77, which indicates that the survey is statistically reliable. We applied the independent samples t-test to the responses to determine significant features per question and employed factor analysis to investigate the relationships of the questions. The results of independent samples t-tests showed statistically significant differences across groups in replies to several survey items (p < 0.05), indicating that participants' opinions varied based on their demographic characteristics. We applied Exploratory Factor Analysis to introduce the relationships between the questions. The analysis revealed that manufacturers continue to face substantial challenges in acquiring sufficient knowledge and operational capability to meet MDR requirements. In light of these findings, we focused on the person responsible for regulatory compliance, who plays a central role in maintaining regulatory compliance within manufacturing organizations. We proposed an action plan at the macro level to introduce more effective action plans in cooperation with other stakeholders, including healthcare providers, and a verification approach for regulatory compliance to enhance the Person Responsible for Regulatory Compliance's competence. Manufacturers should implement effective postmarketing clinical follow-up plans involving device-oriented parameters for monitoring in the healthcare system, especially in collaboration with health professionals.Master Thesis Anonim Şirketlerde Eşit İşlem İlkesine Aykırılık ve Hukuki Sonuçları(2025) Şahin, Deniz; Yongalık, AynurBu çalışmada, anonim şirketlerde pay sahipleri arasında eşit işlem ilkesinin uygulama alanları ve bu ilkeye aykırılık hallerinde ortaya çıkabilecek hukuki sonuçlar ele alınmıştır. Eşit İşlem ilkesi, pay sahiplerinin hak ve yükümlülüklerinde eşitlik sağlamasını amaç edinen temel bir ilke olmakla birlikte, şirket içindeki karar alma süreçlerinde önemli bir yer tutmaktadır. Çalışmada öncelikle eşit işlem ilkesinin hukuki dayanağı, kapsamı ve sınırları incelenmiş; ardından ilkenin ihlali durumunda başvurulabilecek hukuk yolları ve bu ihlalin ortaya çıkarabileceği iptal, butlan ve istisnai hallerde yokluk yaptırımları ayrıntılı bir şekilde değerlendirilmiştir. Ayrıca Türk hukukundaki düzenlemeler, öğreti görüşleri ve yargı kararları ışığında eşit işlem ilkesinin ihlali halinde pay sahiplerinin koruma mekanizmaları da analiz edilmiştir.Article Epistemic Extraction Zones in Migration Studies: Rethinking Over-Research and Research Fatigue Among Syrian Refugees in Turkey(Wiley, 2025) Ozdemir, ZelalThis paper explores the phenomenon of over-research among Syrian refugees in Turkey, highlighting how sustained and repetitive research attention has created research saturation zones that shape both refugee experiences and knowledge production. Drawing on unstructured conversations with six Syrian refugees in Ankara, the study examines how research fatigue manifests not only as reluctance to participate but also as strategic responses through which refugees navigate frequent encounters with researchers. While existing literature has addressed research fatigue and ethics in refugee studies, less attention has been given to how academic incentives, humanitarian logics, and policy imperatives intersect to produce systematic inequalities in knowledge production. To address this gap, the paper advances the concept of epistemic extraction zones, referring to contexts where knowledge is persistently mined from marginalized communities to satisfy institutional demands with limited reciprocity or epistemic agency. This conceptual lens shifts the debate from individual withdrawal to the structural political economy of knowledge production. The analysis identifies three key dynamics. First, the emergence of research saturation zones in contexts of protracted displacement, where the same communities are repeatedly targeted for study; second, refugees' strategic yet ambivalent engagement with research, combining pragmatic hope with critical awareness of its limited effects; and third, the paradoxical consequences of over-research, where intensified attention produces epistemic extraction that narrows the circulation of knowledge and reinforces hierarchies. The article also reflects critically on the researcher's own position within these dynamics. By theorizing epistemic extraction zones, the paper contributes not only to refugee studies but also to broader sociological debates on power, inequality, and the ethics of knowledge production, highlighting the need for more reflexive and politically accountable research practices.
