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 , Bridging Different Institutional Logics: The Role of Institutional Work in Translating Sustainable Product-Service Systems Across Contexts(Springer, 2026) Bağcı, Rifgi Buğra; Raja, Jawwad Z.; Gölgeci, Ismail; Bağcı, Rıfgı BuğraProduct-service systems (PSS) are increasingly adopted by firms seeking to pursue environmental and social responsibili-ties alongside commercial goals, often with near-term trade-offs. Yet, their implementation across diverse national contexts is often fraught with tensions between competing institutional logics, constraining the scalability and robustness of PSS strategies. While institutional theory highlights how logics guide organizational behavior, less is understood about how firms transfer global sustainability logics across organizational and national boundaries and translate them into locally viable practices in differing institutional environments. This study addresses this gap through a comparative qualitative case study of a global heating system provider, drawing on 43 in-depth interviews and complementary field data from its headquarters in Japan and its subsidiary and customers in Türkiye. We identify three institutional logics—sustainability, state, and com-mercial—that jointly influence PSS adoption but interact differently across contexts. Our findings reveal three mechanisms of institutional work that underpin the transfer and translation of logics: strategic creation of sustainability practices, tight and loose coupling of logics under varying institutional conditions, and negotiation of disruption trade-offs between environ-mental and profitability priorities. We develop a conceptual model that specifies the mechanisms through which sustainability logics are transferred across organizational and national boundaries and translated into locally enacted practices, leading to either tight, incremental, or symbolic integration of PSS strategies. Theoretically, this research advances institutional theory by demonstrating that institutional logics are not fixed determinants of behavior but resources that actors actively interpret, recombine, and sometimes only nominally adopt when transferring them across contexts. Practically, it provides guidance for managers and policymakers on designing harmonization strategies, aligning incentives, and overcoming infrastructural barriers to enable substantive sustainability transitions.Öğe Türü: Yayın , Impact of Digital Financial Literacy on Individuals' Experience of Digital Payment Adoption: The Case of Türkiye(Borsa Istanbul Anonim Sirketi, 2026) El Amri, Mohamed Cherif; Omar Mohammed, Mustafa; Bekiroğlu, Ayman MohammadTürkiye's digital finance landscape has experienced substantial growth in recent years, with a surge in digital banking, mobile apps, and non-cash transactions. Yet, the literature has largely remained silent on the factors contributing to digital financial literacy in Türkiye. The purpose of the present study is to investigate the rela-tionship between digital finance literacy and individual experience of digital payment adoption. It has employed a quantitative approach using an online questionnaire survey through Whatsapp groups registered in Türkiye. The analysis of three hundred and twenty useable questionnaires collected through convenience sampling was done using SPSS, and AMOS version 25 - a Structural Equation Modelling (SEM) technique. The results suggested positive relationships between personal experience and access to financial services, beliefs about digital financial services, and safety measures of digital financial services. The study's findings provide interesting insights of the progress of digital finance literacy in Türkiye.Öğe Türü: Yayın , Exploring Sustainable Tax Policy in Türkiye: A Qualitative Analysis of Corporate and Public Discourse in the Energy Sector(Virtus Interpress, 2026) Kazan, Gülçin; Kocamış, Tuğçe Uzun; Kazan, GülçinThis article examines the effect of sustainable taxation policies on public policy and institutional strategies for energy in Türkiye. The methodology of the study was to analyze the activity, sustainability, and integrated reports of a select number (10) of energy companies listed in the Borsa Istanbul (BIST) Sustainability Index over the period of 2021–2023 and to include relevant documents from public institutions in the qualitative content analysis. To complete the code creation process, the literature review and policy document analysis were categorized thematically. These categories included border carbon adjustment mechanism [BCAM] (sinirda karbon düzenleme mekanizmasi [SKDM]), carbon taxes, green finance tools, and tax incentives, which were the main themes identified through the thematic analysis. Through the analysis, it was evident that while businesses have not yet implemented the carbon tax model as an intentional strategy, they have made investments in renewable energy, energy-efficient practices, and received government incentives. Therefore, due to the ambiguity of carbon pricing instruments, there is considerable uncertainty regarding their implementation and significant institutional disparities in reporting such instruments, which create obstacles to the sector’s transformation. This article contributes to showing how removing uncertainties about carbon pricing, clearly defining incentives, and enhancing the capacity of sustainable finance contribute to the green transformation process in the case of Türkiye. These findings are also supported by the literature (Aydın, 2018; Bakış et al., 2022).Öğe Türü: Yayın , Search for Resonances Decaying to an Anomalous Jet and a Higgs Boson in Proton–Proton Collisions at √s = 13 TeV(Springer, 2026) Hayrapetyan, Aram A.; Makarenko, V. V.; Atakişi, İsmail Okan; Atakişi, İsmail OkanThis article has 2,419 authors. Abstract This paper presents a search for new physics through the process where a massive particle, X, decays into a Higgs boson and a second particle, Y. The Higgs boson subsequently decays into a bottom quark–antiquark pair, which is reconstructed as a single large-radius jet. The decay products of Y are also assumed to produce a single large-radius jet. The identification of the Y particle is enhanced by computing the anomaly score of its candidate jet using an autoencoder, which measures deviations from typical quark- or gluoninduced jets. This allows a simultaneous search for multiple Y decay scenarios within a single analysis. In the main benchmark process, Y is a scalar particle that decays into a W boson pair. Two other scalar Y decay processes are also considered as benchmarks: decays to a light quark–antiquark pair, and decays to a top quark–antiquark pair. A fourth benchmark process considers Y as a hadronically decaying top quark, arising from the decay of a vector-like quark into a top quark and a Higgs boson. Data recorded by the CMS experiment at a center-of-mass energy of 13 TeV in 2016–2018, corresponding to an integrated luminosity of 138 fb−1 , are analyzed. The search covers X masses between 1.4 and 3.0 TeV and Y masses between 90 and 400 GeV, with all simulated signals produced in the narrow-width approximation. No significant excess above the standard model background expectation is observed. The most stringent upper limits to date are placed on benchmark signal cross sections for various masses of X and Y particlesÖğe Türü: Yayın , Safety-Relevant Contaminants and Nutritional Quality of Hazelnut Skin and Pumpkin Seed Proteins(John Wiley and Sons Ltd, 2026) Mehdizadehtapeh, Leila; Tekiner, İsmail Hakkı; Gökşen, Gülden; Ajal, El Amine; Yılmazer, Yasemin B.; Bajoub, Aadil; Bostancı, Ferhat; Ennahli, Said; Yılmazer, Yasemin; Bostancı, FerhatBACKGROUND: The agro-food industry generates by-products and waste. These may be valorized as protein sources that could be used as alternatives to soy and pea in line with the EU Farm to Fork Strategy. This study evaluated potential safety-relevant contaminants and the nutritional quality of hazelnut skin protein (HSP) and pumpkin seed protein (PSP) compared with conventional pea protein (PP) and soy protein (SP). RESULTS: Microbial contaminants, total aflatoxin, pesticides, and polyaromatic hydrocarbons were assessed as satisfactory. Arsenic, cadmium, and lead slightly exceeded regulatory limits, whereas mercury was undetected. Total protein content was 53.93% in HSP, 57.79% in PSP, 48.86% in PP, and 57.89% in SP. All samples largely met the essential amino acid requirements of the World Health Organization (WHO)/Food and Agriculture Organization of the United Nations (FAO). In vitro cytotoxicity assays showed that HSP and SP significantly affected the viability of colon cancer cells (HCT-116) while remaining non-cytotoxic to fibroblast cells (L929), depending on exposure time and protein concentration (P < 0.05), indicating potentially safe. During in vitro digestion, following the Infogest protocol, HSP exhibited high stability at pH 3.4 with moderate solubility of 20 mg L⁻¹, similar to PSP. Hazelnut skin protein also displayed higher antioxidant activity than SP and PP, reaching 20 mmol TE g⁻¹ after intestinal digestion between 120 and 240 min. CONCLUSION: Hazelnut skin and pumpkin seed proteins could serve as alternative protein sources with satisfactory safety and nutritional quality. Further research should focus on safety and nutritional standardization to support their sustainable use as healthy ingredients.
