İZÜ Araştırma ve Akademik Performans Sistemi
DSpace@İZÜ, İstanbul Sabahattin Zaim Üniversitesi’nin bilimsel araştırma ve akademik performansını izleme, analiz etme ve raporlama süreçlerini tek çatı altında buluşturan bütünleşik bilgi sistemidir.
Güncel Gönderiler
Öğe Türü: Yayın , Formation of Advanced Glycation End Products Precursors in Apricots: A Comprehensive Market-Based Study(VUP Food Research Inst., 2025) Çatak, Jale; Erdoğan, Seher; Uğur, Halime; Yaman, Mustafa; Çatak, Jale; Yaman, MustafaAdvanced glycation end products (AGEs) are a group of complex products formed by non-enzymatic glycation of biological macromolecules and are considered undesirable compounds, with glyoxal (GO) and methylglyoxal (MGO) acting as their precursors. This study investigated the relationship between AGE precursors and sugar composition in sun-dried and sulfured-dried apricots obtained from marketplaces in various regions throughout Istanbul (Turkey). A total of 54 samples (27 sun-dried, 27 sulfured-dried) were analysed using high-performance liquid chromatography to determine GO, MGO, glucose, fructose, and saccharose contents. The levels of GO and MGO in sun-dried apricots ranged from 0.040 mg kg(-1) to 1.595 mg kg(-1) and from 0.488 mg kg(-1) to 23.701 mg kg(-1), respectively. GO and MGO content of sulfured-dried apricots ranged from 0.030 mg kg(-1) to 1.176 mg kg(-1) and 14.950 mg kg(-1) to 141.327 mg kg(-1), respectively. On average, MGO content in sulfured-dried apricots was approximately five times higher than in sundried samples, indicating a notable difference. Variations in sugar content, processing temperature, storage time, sulfur content, and antioxidant activity may influence GO and MGO formation in dried apricots.Öğe Türü: Yayın , The Impact of Generative AI on University Students' Learning Experience: A Study on Cognitive and Affective Outcomes(Zagreb University, 2025) Ben Otman, Sajeda; Ben Otman, Sourur; Karahan Adalı, Gökçe; Adalı, Gökçe KarahanGenerative Artificial Intelligence (GenAI) is rapidly transforming higher education, yet its impact on learning experiences remains contested. Existing research often isolates either cognitive outcomes (e.g., comprehension, creativity) or affective outcomes (e.g., motivation, engagement), leaving a gap in integrated analyses that also account for heterogeneity across student groups. This study investigates both dimensions simultaneously by examining university students’ perceptions of GenAI, focusing on learning, creativity, motivation, and engagement, alongside perceived risks such as overreliance, ethical concerns, and difficulties in verifying accuracy. Data were collected from 93 students and analyzed through Spearman’s correlations and unsupervised clustering (k-means) with PCA visualization. Findings indicate low to moderate positive correlations between GenAI usage and learning outcomes, particularly problem-solving and motivation. Cluster analysis reveals diverse usage–perception profiles, including paradoxical cases where frequent users report limited cognitive benefit. These results alignwith Technology Acceptance Model (TAM) and UTAUT assumptions of perceived usefulness and performance expectancy, while also showing that digital literacy moderates these relationships, especially in critical thinking and responsible use. The study contributes by integrating cognitive and affective outcomes, revealing latent profiles beyond averages, and bridging adoption models with responsible AI frameworks. Practical implications highlight the need for AI literacy training, ethical policies, and instructional design to foster effective and responsible GenAI integration in higher education.Öğe Türü: Yayın , How Adverse Childhood Experiences Relate to Subjective Vitality: The Half-Longitudinal Role of Loneliness(Elsevier, 2025) Güney Uygun, Ezgi; Erus, Seher Merve; Satıcı, Begüm; Uygun, Ezgi GüneyAdverse childhood experiences (ACEs) may negatively impact individuals’ ability to establish and maintain social relationships, leading to an increase in feelings of loneliness. Loneliness, in turn, can negatively affect subjective vitality by reducing an individuals’ life satisfaction and overall sense of well-being. Earlier research has also emphasized that ACEs can affect the quality of social relationships and contribute to feelings of loneliness. Therefore, ACEs can increase an individual’s sense of loneliness and, as a result, reduce subjective vitality. This study explored the mediating role of loneliness in the relationship between ACEs and subjective vitality. The study sample consists of 322 individuals with an average age of 26.19. The data were obtained through self-report questionnaires and examined using cross-lagged structural equation modeling. Findings from the cross-lagged panel model within a half-longitudinal framework highlighted that loneliness significantly mediated the association between ACEs and vitality. The results suggest that high levels of loneliness reduce the subjective vitality of individuals with ACEs. Consequently, adults’ vitality may be hindered by ACEs as well as loneliness and the absence of social relationships. It is possible to deduce that functional social relationships can be seen as a remedial factor for adults with ACEs, and as feelings of loneliness decrease, their subjective vitality is likely to improve.Öğe Türü: Yayın , Sacred Tensions: How Mental Health Professionals Navigate Spirituality, Ethics, and Professional Identity(Springer, 2025) Tunç, Muhammed Furkan; Ekşi, Halil; Tunç, Muhammed FurkanThis study explores the ethical dilemmas and professional identity challenges faced by mental health professionals who integrate spirituality into their therapeutic practice, focusing on the Turkish cultural context. Employing a qualitative phenomenological design, the study conducted in-depth, semi-structured interviews with eight practitioners specializing in guidance and psychological counseling, psychology, or psychiatry. Findings highlight the nuanced balance therapists must strike between respecting clients’ spiritual values and maintaining professional boundaries. Participants emphasized the importance of cultural humility, client autonomy, and ethical reflexivity when navigating faith-related conflicts. The study also identified tensions between Western ethical standards and local practices, underscoring the need for culturally contextualized guidelines. The research contributes to the literature by addressing gaps in culturally specific ethical frameworks and offering practical insights for spiritually integrated therapy. This study advocates for a client-centered, pluralistic approach that honors spiritual diversity while upholding professional integrity in mental health practice.Öğe Türü: Yayın , Determinants of Cash Waqf Finance Capital in the Ottoman Empire: An Empirical Investigation(Emerald Group Publishing Ltd., 2025) Altay, Bora; Bulut, Mehmet; Bulut, MehmetPurpose – The purpose of this study is to offer a quantitative analysis of cash waqf capital in the Ottoman Empire, using data from cash waqf deeds (waqfiyyas) of Rumelia provinces from a long-term perspective. Design/methodology/approach – Extracting information on capital levels, personal characteristics of founders, financed services, distance from Istanbul and witnesses, this study estimates aggregate measures of capital levels. This study uses regression analysis to identify how capital levels are determined by several factors. Findings – The results of this study indicate that holding a title, number of services, distance from Istanbul and family waqfs are positively related to higher capital levels. The number of witnesses, gender and individual services have no influence on capital levels. Practical implications – Although the financial capital of cash waqfs decreased significantly since the 19th century, their number continued to increase. This was mainly because of the continuing tendency of a significant segment of society to borrow from these organizations, rather than the increasing role of modern banks. During this period, lending with less paperwork preserved the role of these organizations in credit relations, especially in relatively small-scale towns far from Istanbul. In other words, banks did not replace cash waqfs during the 19th century. Cash waqfs played an important role in channeling medium-sized financial capital to the market. For recent times, this study suggests that modern cash waqfs and Islamic financial institutions should prioritize trust, diversification and sustainability while adapting to contemporary economic and regulatory contexts. Originality/value – In addition to providing valuable insights into cash waqf capital patterns from a longterm perspective, this study contributes to the literature by providing findings based on a novel data set of cash waqf organizations outside Istanbul. This study, for the first time, provides a quantitative and systematic analysis on the development of cash waqf capital and its determinants in the Ottoman Empire. Of great significance, this study focuses on organizations in the Rumelia region, which has received limited attention in the Ottoman waqf and finance history literature and provides a quantitative analysis of a substantial number of cash waqfs, specifically, 972.
