https://hdl.handle.net/20.500.12960/16 2026-05-10T21:52:52Z 2026-05-10T21:52:52Z Arslan, Aykut Akturan, Abdülkadir https://hdl.handle.net/20.500.12960/1823 2026-04-27T13:41:19Z 2026-01-01T00:00:00Z

From efficiency to resilience: Strategic shifts in maritime organizations through digitalization, ESG, and human capital (2018 - 2025) Arslan, Aykut; Akturan, Abdülkadir Most existing maritime research examines digitalization, ESG pressures, and human capital separately. This paper fills the gap in explaining how the three factors dynamically reshape strategic orientations in the highly unstable post-2020 period. It explains how maritime organizations reconfigured their strategies between 2018 and 2025. The research is based on sixteen semi-structured interviews with top professionals from different segments of the maritime ecosystem across Europe and Asia, analyzed according to Gioia methodology. The main finding is a structural transformation from an efficiency strategy before 2020 toward a resilience strategy after 2020. It finds that this shift emanates from an interaction between digitalization (a ‘sensing’ capability) and human capital (a ‘reconfiguring’ capability). Seven strategic patterns are identified, which include new forms such as glocal ESG adaptation-blending global rules with local innovation-and hybrid leadership--blending technical, digital, and human skills-in addition to more traditional forms like asset diversification or trade pattern flexibility through chartering tonnage. This study is original as it is the first integrated empirical analysis of the interaction, with a rare pre/post-2020 temporal comparison conceptualizing new patterns as specific dynamic capabilities for the maritime sector.

2026-01-01T00:00:00Z Uslan, Volkan Şeker, Hüseyin Onaran, İbrahim Hirtz, Michael Riehemann, Kristina https://hdl.handle.net/20.500.12960/1821 2026-04-16T06:55:07Z 2025-01-01T00:00:00Z

Automated In-situ Analysis of Tumor-Associated Macrophage Attachment on Antifouling Polymer Brushes Uslan, Volkan; Şeker, Hüseyin; Onaran, İbrahim; Hirtz, Michael; Riehemann, Kristina Tumor-associated macrophages (TAMs) are critical to tumor progression. Quantifying their interactions with biomaterial surfaces is crucial for developing effective cancer therapies. Traditionally, manual cell counting has been used to assess macrophage adhesion, a labor-intensive and subjective process. To address these limitations and enable unbiased analysis, we developed an automated in-situ system to quantify TAM attachment to antifouling polymer brushes. Bland-Altman analysis indicated a high agreement between our automated method and traditional manual cell counting. For M1 macrophages, the mean difference was less than 4 cells, with limits of agreement (LoA) ranging from -70.18% to 80.16%. For M2 macrophages, the mean difference was 25 cells, with LoA ranging from -51.61% to 72.71%. These results were consistent across different experimental conditions, including Unspecific Binding, Specific Antibody, and IgG Control. Our analysis revealed no systematic differences in cell counts and holds significant potential for point-of-care applications, potentially enhancing personalized treatment strategies.

2025-01-01T00:00:00Z Doğan, Metin https://hdl.handle.net/20.500.12960/1818 2026-04-16T06:45:06Z 2026-01-01T00:00:00Z

Analysis of the effect of wealth taxes in overcoming the Jevons paradox Doğan, Metin Although energy efficiency and renewable energy are crucial tools for combating climate change, their use may inadvertently increase demand for energy and materials by reducing resource costs, a phenomenon known as the Jevons paradox or rebound effect. This study applies KRLS and adaptive LASSO to examine this issue in Turkey for 1985-2022. Two models are constructed with different dependent variables. The results confirm a strong rebound effect for energy efficiency for both models and analytical methods, whereas the rebound effect for renewable energy is only partially validated, and technological development has a limited rebound effect. The KRLS results indicate that wealth taxes reduce energy consumption across all percentiles and fossil fuel consumption per capita in the lower percentiles, while the adaptive LASSO results indicate a negative effect in both models. These findings suggest that wealth taxes may be an effective policy tool to counter the Jevons paradox and promote sustainable energy practices in Turkey. They are also a useful tool for creating a fairer tax system, reducing carbon-intensive production/consumption activities, and generating resources for renewable energy. International cooperation to reintroduce wealth taxes at higher rates will increase their effectiveness. Another key finding is that renewable energy is crucial to achieving zero-carbon targets. In Turkey, however, outdated renewable energy infrastructure and inefficient investments are hindering renewable energy implementation, which should be prioritized by redesigning Turkey's energy and fiscal policies.

2026-01-01T00:00:00Z Şahin, Suna Doğan, Metin Kaplan, Emin Ahmet https://hdl.handle.net/20.500.12960/1815 2026-04-14T08:48:01Z 2025-01-01T00:00:00Z

The role of environmental technologies in carbon decoupling: A pathway to zero emissions in Turkiye Şahin, Suna; Doğan, Metin; Kaplan, Emin Ahmet This study investigates the direct impact of environmental technologies on carbon emissions in Turkiye (1988–2022) to evaluate the progress of carbon decoupling—the process of separating economic growth from environmental degradation. By analyzing this relationship, the study provides critical insights into the pathways for achieving broader sustainable development goals in emerging economies. The study employs Instrumental Variable Quantile Regression to address endogeneity and analyze how environmental technologies, renewable energy supply, and environmental innovations affect carbon emissions. Key findings indicate that both environmental technologies and renewable energy supply are powerful drivers in reducing carbon emissions, providing strong evidence for their role in the decoupling process. In contrast, environmental innovations exhibit a minor, counterintuitive short-term increase in emissions, suggesting a potential adjustment period or implementation lag before their full environmental benefits are realized. Furthermore, the analysis reveals that the emission-reducing impact of these technologies is significantly stronger at higher levels of pollution, highlighting their critical importance for countries with substantial environmental challenges. The findings suggest that emerging economies should prioritize investments in environmental technologies and renewable energy infrastructure while maintaining a long-term perspective on environmental innovations and implementing progressive environmental policies to achieve more effective decoupling.

2025-01-01T00:00:00Z