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Article The Relationship Between Operational Efficiency and Financial Efficiency in the Shipping Industry: An Example From Privatized Ports in Türkiye(EDP Sciences S A, 2025) Kaya, Ebru Nur; Mete, Mevlut Hurol; Belgin, OnderSince the ports are the backbone of international trade they need to be managed efficiently. This study addresses to analyze the operational and financial efficiency of the selected privatized ports that have been belonged to TCDD (Republic of T & uuml;rkiye State Railways). For this purpose, EATWOS (Efficiency Analysis Technique with Output Satisfying) method is employed, and the weights of the inputs and outputs are determined using LOPCOW (Logarithmic Percentage Change-Driven Objective Weighting), MEREC (Method Based on the Removal Effects of Criteria), and CRITIC (Criteria Importance Through Intercriteria Correlation) methods. After obtaining the weights from these objective methods, the comprehensive weights are calculated using TPOP (Technique of Precise Order Preference) method. Finally, Spearman's rank-order correlation shows that there is no relationship between the operational and financial efficiency of the ports. The number of studies that address both operational and financial efficiency of ports is limited, and this study distinguishes itself by investigating the relationship between both efficiency types.Article The Representation of Magical Doors in Mohsin Hamid's exit West(Forum Literary Voice, 2024) Aras, GoksenMohsin Hamid presents migration as one of the most debatable global themes in his Exit West (2017). The author fictionalises not only migrants' crises of dislocation in the contemporary world but also their escape to safety through magical means in his novel. Exit West mainly depicts the existential struggles and anxieties of the two migrants, Nadia and Saeed, and their toilsome experiences in their journey to the West after they leave their homeland. The two protagonists of the novel trespass physical borders and walls, like heavily guarded frontiers or oceans through magical doors to create themselves a safe space. It is clear from the very beginning of the novel that Nadia and Saeed try hard to survive in an unnamed South Asian country, which is fraught with political chaos, violence and bloodshed. Having been guided by a number of bribed dark agents, the couple flee their country by passing through some magical doors, towards a future marked by uncertainty and unpredictability. Their first Western destination is the Greek island of Mykonos where they settle in a refugee camp, their second destination is London, and the final stop is Marin, San Francisco. The objective of this paper is to explore the actual and symbolic function of magical doors as the main characters journey to the West to start a free and secure life.Conference Object Article A Note on the Structure of Interpolative Metric Spaces(Univ Nis, Fac Sci Math, 2025) Karapinar, Erdal; Romaguera, SalvadorIn this note we observe that interpolative metric spaces lie between strong b-metric spaces and b-metric spaces. This paper aims to comprehend the connections of these notions and the corresponding structures, namely, interpolative metric spaces, strong b-metric spaces, and b-metric spaces. An example is considered to illustrate our claims.Article Dual Zn/Zr Hybrid Framework-Integrated Membranes With Enhanced Proton Conductivity and Durability for High-Temperature PEM Fuel Cells(John Wiley and Sons Inc, 2025) Altınışık, H.; Devrim, Y.This study proposes an innovative strategy for fabricating advanced composite membranes based on a poly[2,2′-(m-phenylene)-5,5′-bibenzimidazole] (PBI) matrix for high-temperature proton exchange membrane fuel cells (HT-PEMFCs). A co-synthesized hybrid porous framework incorporating both Zn- and Zr-based nanostructures was integrated into the PBI backbone, ensuring uniform dispersion and strong interfacial bonding, as verified by comprehensive structural and morphological characterizations. This dual-framework architecture promoted the formation of continuous proton-conductive channels and enhanced membrane stability under demanding operating conditions. Furthermore, the membranes were utilized after acid doping, and the hybrid structure effectively mitigated the acid leaching issue, ensuring stable long-term proton conductivity. At 0.6 V and 170°C, the membranes achieved a current density of ≈630 mA/cm2, demonstrating the critical role of structural optimization in improving fuel cell efficiency. These findings offer valuable insights into designing scalable, durable, and thermally stable membranes for next-generation HT-PEMFC applications. © 2025 Society of Plastics Engineers.
