FBU GCRIS Standard Database
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Recent Submitted Publications
Uyanık Beyin Cerrahisi ve Dil Konusunda Bilgi Kaynağı Olarak YouTube: İçerik Kalitesi, Güvenilirliği ve Profesyonel Katılım
(2025) Başer, Dilara; Yaşa, İbrahim Can; Kargın, Ömer; Öztürk, Seren Düzenli; Özel, Simay Aybar; Genç, Emre
Amaç: Dijital platformlar, dünya çapında tıbbi bilginin önemli bir kaynağı haline gelmiştir. Bunlar arasında YouTube, eğitim amaçlı en sık kullanılan platformlar- dan biridir, ancak genellikle resmi içerik düzenlemesi bulunmamaktadır. Bu nedenle, sağlıkla ilgili videoların doğruluğu, güvenilirliği ve eğitim değeri, özellikle dil haritalaması içeren uyanık beyin cerrahisi gibi karmaşık prosedürler için belirsizliğini korumaktadır. Bu çalışma, uyanık beyin cerrahisi ve dil ile ilgili YouTube videolarının kalitesini, güvenilirliğini, şeffaflığını ve popülerliğini değerlendirmeyi amaçlamıştır. Analiz, değerlendirilen dil alanlarına, değerlendirmeye dil ve ko- nuşma terapistlerinin (DKT) katılımına ve değerlendirme parametreleri arasındaki ilişkilere odaklanmıştır. Gereç ve yöntem: Otuz bir İngilizce video, modifiye DISCERN (m-DISCERN), Global Kalite Ölçeği (GQS) ve Amerikan Tıp Derneği Dergisi (JAMA) kriterleri kulla- nılarak analiz edilmiştir. Videoların popülerliği, Video Güç Endeksi (VPI) kullanılarak ölçülmüştür. Videoların süresi, değerlendirilen dil alanlarının sayısı ve DKT katılımı da kaydedilmiştir. Bulgular: m-DISCERN puanı, GQS ve JAMA puanları ile pozitif korelasyon göstermiştir (tümü için; p=0,001). JAMA puanı VPI ile negatif, video süresi ile pozitif ko- relasyon göstermiştir (tümü için; p<0,001). VPI, video süresi ile negatif, beğeni ve yorumlar ile pozitif korelasyon göstermiştir (tümü için; p<0,005). Birden fazla dil alanını değerlendiren videolar daha yüksek m-DISCERN, GQS ve JAMA puanları ve daha uzun süreye sahipken, tek bir alanı değerlendiren videolar daha yüksek VPI değerleri göstermiştir. DKT katılımı sınırlı bulunmuş ve yazma ve konuşma özellikleri gibi alanlara nadiren yer verildiği belirlenmiştir. Sonuç: Bu bulgular, çevrimiçi içerik ile kanıta dayalı klinik uygulamalar arasında bir uyumsuzluk olduğunu ortaya koymakta, daha fazla profesyonel katkıya ve içerik standartlarının iyileştirilmesine ihtiyaç olduğunu göstermektedir.
Visual Tracking Efficiency across Different Spacing Widths: A Text-Free Eye-Tracking Study
(Routledge Journals, Taylor & Francis Ltd, 2026) Akyurek, Gokcen; Akcay, Arif; Aydoner Bektas, Selen
This study examined how spatial spacing influences visual tracking efficiency using a novel text-free eye-tracking paradigm designed to minimize the influence of reading-related processes. Twenty participants visually followed straight, curved, and angular paths with five different widths (0.5-3 cm), while eye movements were recorded using a Tobii Eye Tracker T120. Results showed that narrow angular paths (0.5-1 cm) were associated with significantly higher fixation counts and longer fixation durations compared to wider angular paths and other paths. For angular paths, fixation counts differed significantly between 0.5 cm and 2.5 cm (p = .005), and between 0.5 cm and 3 cm (p = .003). Total fixation counts and total fixation durations were significantly greater for angular paths than for straight and curved paths. The findings indicate that narrower spatial constraints increase visual-perceptual load and reduce oculomotor fluency, whereas moderate spacing (approximately 2.5 cm) facilitates smoother visual guidance. The results are limited to visual tracking and oculomotor control within constrained geometric layouts and do not reflect reading behavior. The study highlights the utility of text-free visual tracking tasks for isolating low-level perceptual and oculomotor processes and informing future research on spatial layout and visual guidance in digital environments.
Women’s Biopsychosocial Experiences Following Embryo Transfer: A Qualitative Study
(Elsevier Masson, Corp Off, 2026) Baltacı, Nurşah Boylu; Aslan, Ergül; Coşkun, Merve
Purpose: This study explored the physical, psychological, and social experiences of women during the waiting period following embryo transfer (ET) in In Vitro Fertilization (IVF) and provides recommendations regarding psychosocial support needs. Materials and methods: A descriptive phenomenological design with thematic analysis was used. Semi-structured telephone interviews (30-45 min) were conducted with 29 women who underwent ET at a private IVF center in Istanbul from April to July 2025. Data were coded and analyzed using MAXQDA 24, and themes and subthemes were identified. Results: Participants had a mean age of 32.8 years, infertility duration of 2.8 years, 2.2 of IVF attempts, and 2.5 ETs. Most women were employed (69%), 72% had no previous pregnancies, and 86% had undergone multiple IVF attempt. Four main themes emerged in the thematic analysis: physical effects, psychological effects, social effects, and coping strategies. Subthemes varied by marital duration, previous IVF experience, and number of ETs; effects were stronger among women with multiple ETs. Conclusion: Women experience multidimensional challenges following ET and adopt various coping strategies. Physical changes disrupt daily life, emotional fluctuations stem from uncertainty and anxiety, and partner/social support and trust in healthcare professionals are critical for mitigating anxiety and improving quality of life and treatment adherence.
Türkiye’de Vekâlet Problemlerinin Sınıflandırılması
(2025) Özalp, Birsen; Oktar, Ömer Faruk
In the research, it is assumed that context affects both the parties experiencing agency problems and the types of agency problems. The problems are classified into Type 1 agency problems, which occur between shareholders and managers, and Type 2 agency problems, which occur among shareholders. The aim is to identify the issues experienced within both dimensions. Given the need to describe a phenomenon across different contexts, a qualitative research method was employed. Data were obtained from court case texts involving shareholders and board members, accessed through an electronic legal database. A total of 42 distinct case texts were analyzed. Content analysis was conducted using MAXQDA 2020 to interpret the data. The research concluded that agency problems vary depending on the parties involved in the agency relationship. In the context of Turkiye, it was found that agency problems occur more frequently among shareholders. The most common issues observed in shareholder relations include unfair profit-taking, intentional harm to the company, and obstruction of the rights to control, monitor, and access information. The research highlights the need for corporate governance practices that offer positive discrimination to minority shareholders.
Virtual Reality-Based Rehabilitation for Upper Extremity Recovery after Stroke: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
(Taylor & Francis Ltd, 2026) Ozturk, Basar
Background: Stroke often results in upper extremity motor impairments, limiting functional independence. Conventional rehabilitation, while effective, faces challenges such as low engagement and high resource demand. Virtual reality (VR)-based rehabilitation may promote neuroplasticity through immersive and repetitive training. Objectives: To systematically evaluate randomized controlled trials (RCTs) assessing the effectiveness of VR-based rehabilitation on upper extremity motor recovery in stroke patients, and to explore the impact of system type, stroke chronicity, and intervention dosage. Methods: Following PRISMA 2020 guidelines (PROSPERO: CRD420251065021), a systematic search was conducted in PubMed, Scopus, Web of Science, and CENTRAL for RCTs published between 2010 and March 2025. Studies included adult stroke survivors receiving VR interventions targeting upper limb recovery. A random-effects meta-analysis calculated standardized mean differences (SMDs), and risk of bias was assessed using RoB 2.0. Results: Twenty-four RCTs (n = 1,627) were included. Meta-analysis of 21 studies showed a moderate effect favoring VR (SMD = 0.58; 95% CI: 0.38-0.78; p < 0.001; I-2 = 62%). Immersive VR, chronic stroke, and higher intervention doses (>600 min) showed stronger effects. Conclusions: VR-based rehabilitation significantly enhances upper extremity motor function post-stroke. Immersive systems and sufficient dosage yield optimal outcomes, supporting VR as a valuable adjunct to conventional therapy.