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 , From Plate to Planet: Nutritional and Environmental Sustainability of Turkish Cuisine Across the Regions of Türkiye(Taylor & Francis, 2025) Çelik, Zehra Margot; Barcın Güzeldere, Hatice Kübra; Ede Çintesun, Elif; Bayram, Hatice Merve; Çintesun, Elif EdeThis study aims to analyze the nutrient profile, carbon and water foot-prints of traditional menus across geographical regions of Türkiye. The recipes were selected from cookbooks and were analyzed through Google Trends. The menus showed significantly higher levels of energy, protein, carbohydrates and several vitamins and minerals (p < 0.05). Carbon footprint analysis revealed Southeast Anatolia had the highest footprint (5.54 ± 0.55 kg CO2 eq/d), while Central Anatolia had the lowest (2.01 ± 0.23 kg CO2 eq/d) (p < 0.05). Water footprint data indicated Marmara had the highest values (4165.03 ± 386.95 L/kg/d), with Central Anatolia having lowest (1132.14 ± 101.18 L/kg/d) (p < 0.05). However, no statistically significant differences were observed between traditional menus and the EAT-Lancet Planetary Diet. These findings highlight the importance of developing sustainability strategies that preserve cultural heritage while promoting plant-based ingredients, seasonal and local foods, and eco-friendly cooking methods to mitigate environmental impact.Öğe Türü: Yayın , Global Logistics Efficiency After COVID-19: A Cross-Country Analysis Using the Logistics Performance Index(Taylor & Francis, 2025) Bayraktar, Erkan; Zaim, Selim; Güdelek, Mehmet; Gölgeci, İsmailThis study analyses the World Bank’s Logistics Performance Index (LPI) to quantify changes in logistics performance before and after COVID-19, using a slack-based measurement (SBM) model of data envelopment analysis (DEA) and the Malmquist Index (MI), which indicates efficiency changes over time. The LPI analysis shows performance gains, but challenges in timeliness and international shipments. The SBM-DEA model indicates efficiency improvements mainly through technological advancements. After the pandemic, the decline in efficiency in customs operations and international shipments signals a need for streamlined procedures and cost reductions. The analysis also shows that the post-pandemic recovery varied by region. This study contributes to the theory by showing how dynamic capabilities and institutional resilience influence logistics adaptability and widen global performance gaps. Informed by the resource-based view and dynamic capabilities theory, it advises policymakers to enhance logistics infrastructure, modernise customs, and reduce costs to tackle postpandemic challenges in underperforming regions.Öğe Türü: Yayın , Healthy Lifestyle Beliefs, Nutritional Behaviors, and Physical Activity of Adolescents: A Mediation Analysis(Women's Health and Action Research Centre, 2025) Kaynak, Kerimhan; Koç, Kenan; Bayıroğlu, Gül Bahar; Ercan, Zehra; Akıncı, Abdullah Yavuz; Yüce, Mustafa Soner; Arısoy, Abdullah; Acar, Emine U.; Yüce, Mustafa SonerAlthough the Covid-19 pandemic has ended, its negative impacts on adolescents’ physical activity levels, nutritional behaviors, and healthy lifestyle beliefs persist. This study aimed to examine whether physical activity (PAS) mediates the relationship between healthy lifestyle beliefs (HLB) and nutritional behaviors (NBS) among adolescents. This study was a quantitative study, with a cross-sectional survey design. It was conducted during the 2022–2023 academic year in Anatolian high schools in Turkey, and it involved 686 high school students aged 14–17 who voluntarily participated. Data were collected using a personal information form, the Healthy Lifestyle Beliefs Scale, the Physical Activity Scale (PAS), and the Nutrition Behavior Scale (NBS). Descriptive statistics (mean ± SD) and regression analysis were performed using SPSS 22.0 and the PROCESS macro v3.5 (Model 4) with a bootstrap resampling method (5000 samples). Results indicated that adolescents exhibited high levels of HLB, while PAS and NBS were at moderate levels. A moderate positive correlation was found between HLB and NBS (r=0.665, p=0.000), while low positive correlations existed between HLB and PAS (r=0.366, p=0.000), and PAS and NBS (r=0.330, p=0.000). Physical activity was found to partially mediate the relationship between HLB and NBS (0.049, 95% CI [0.0237, 0.0784]). These findings highlight the importance of promoting physical activity to support better nutritional behaviors, which may lead to healthier lifestyles andimproved long-term health outcomes for adolescents.(Afr J Reprod Health 2025; 29 [8s]: 83-93).Öğe Türü: Yayın , Relations Among Family Communication, Cognitive Flexibility, and Happiness in Turkish Adults: A Longitudinal Mediation Model(Springer, 2025) Okur, Sinan; Ümmet, Durmuş; Satıcı, Seydi Ahmet; Kütük, Hasan; Kütük, HasanFamily relationships and family life are important protective factors for psychological health. Establishing healthy com-munication between members of a family is important for the happiness of individuals. There are several cross-sectional findings regarding family communication in the literature. A longitudinal design was used to examine the mediating effect of cognitive flexibility in the relationship between family communication and happiness, taking into consideration the limitations of the cross-sectional design. In this study, data from the Turkish adult sample (N= 277) was collected in two waves at four-month intervals. The ages of the sample group [195 (70.4%) female and 82 (29.6%) male] are between 20 and 55. The average age was calculated as 29.66 (SD = 8.27). We used the cross-lagged panel model for the half-longitu-dinal mediation model for testing mediation with two time points at four-month intervals. The findings revealed that the variables of the study had significant longitudinal associations, and cognitive flexibility played a longitudinal mediating role in the relationship between family communication and happiness. The current results prove the importance of healthy relationships among family members and highlight the significant influence of family communication and cognitive flex-ibility on happiness.Öğe Türü: Yayın , Wealth Taxation and Sustainable Development: Could Wealth Related Taxes Play a Role in Achieving the SDGs?(Wiley, 2025) Eraydın, Levent; Durmaz, Cemil Faruk; Durmaz, Cemil FarukThis paper examines the relationship between wealth taxation and Sustainable Development Goals (SDGs) in OECD mem-ber countries and analyzes the impacts of wealth (related) taxes on social, environmental, and economic goals for the period of 2000–2021. The results from panel data estimations utilizing fixed effects and Driscoll-Kraay standard errors indicate that wealth taxes positively contribute to social goals (such as reducing inequalities) but negatively affect economic goals. In the data, we observe that wealth taxes are as successful as corporate income taxes in generating the necessary finance for governments. This underscores that wealth taxes hold significant revenue potential in tackling real-world problems such as climate change. However, our empirical results do not show any meaningful impact of wealth taxes on environmental objectives. With their cur-rent forms, wealth taxes lead to opposing effects on SDGs in OECD countries. Developing effective implementation strategies for wealth taxes is, therefore, essential for promoting future economic activities toward environmental sustainability and well-being.
