| 21. |
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| 22. |
- Özçetin, Seda
(author)
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Filling in the blanks : rethinking Terms of Service (ToS) through design
- 2023
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Conference paper (peer-reviewed)abstract
- Terms of Service (ToS) have proven to be a problematic touchpoint for regulating the ongoing relationships with networked computational things. As research into improving their usability demonstrates insignificant gains in engagement and comprehensibility, employing an approach going beyond an understanding of ToS as 2D interface becomes inevitable. In this paper, highlighting these problems, I problematize ToS for design by zooming in to and out of ToS through lenses of (auto)ethnography, programmatic research, and entanglement theories. Three practices emerge from this movement and make up my research program, aesthetics of relating: releasing design for Terms of Trauma, revealing design for Terms of Entanglement, and reimagining design for Terms of Care. With these explorations I introduce a conceptual shift from ToS to ToS ecosystem – ToSsphere, and theoretical and methodological shifts from human-centered to more-than-human design. I conclude by mentioning my plans to achieve this research program and the expected contributions.
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| 23. |
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| 24. |
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| 25. |
- Özgür, Erdogan, et al.
(author)
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Bioinspired design of a polymer-based biohybrid sensor interface
- 2017
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In: Sensors and actuators. B, Chemical. - : Elsevier BV. - 0925-4005 .- 1873-3077. ; 251, s. 674-682
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Journal article (peer-reviewed)abstract
- The key step in the construction of efficient and selective analytical separations or sensors is the design of the recognition interface. Biomimicry of the recognition features typically found in biological molecules, using amino acids, peptides and nucleic acids, provides plausible opportunities to integrate biological molecules or their active sites into a synthetic polymeric backbone. Given the basic role of functional amino acids in biorecognition, we focused on the synthesis of polymerizable amino acid derivatives and their incorporation into a polymer-based biohybrid interface to construct generic bioinspired analytical tools. We also utilized polyvinyl alcohol (PVA) as a sacrificial polymer to adjust the porosity of these biohybrid interfaces. The surface morphologies of the interfaces on gold electrodes were characterized by using scanning electron (SEM) and atomic force (AFM) microscopies. The electrochemical behavior of the polymeric films was systematically investigated using differential pulse voltammetry (DPV) to demonstrate the high affinity of the biohybrid interfaces for Cu(II) ions. The presence of macropores also significantly improved the recognition performance of the interfaces while enhancing interactions between the target [Cu(II) ions] and the functional groups. As a final step, we showed the applicability of the proposed analytical platform to create a Cu(II) ion-mediated supramolecular self-assembly on a quartz crystal microbalance (QCM) electrode surface in real time.
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| 26. |
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| 27. |
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| 28. |
- Öztürk, İbrahim, et al.
(author)
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Traffic climate scale : Comparing samples from Turkey and Sweden
- 2021
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In: IATSS Research. - : Elsevier B.V.. - 0386-1112.
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Journal article (peer-reviewed)abstract
- Traffic climate is a recent and one of the essential topics in traffic and transportation research. Various studies have examined the relations of traffic climate with driving outcomes such as accidents by using different versions of the Traffic Climate Scale (TCS). In a recent attempt, 16-items and 38-items versions of the TCS were examined in different countries. With respect to that, the present study aims to investigate the psychometric properties of 16-items and 38-items versions in samples from Turkey and Sweden and to test the traffic climate differences of these two countries. A total of 309 participants from Turkey and 357 participants from Sweden completed a questionnaire including a demographic information form and the TCS. Confirmatory factor analyses showed that the short TCS had better fit indexes with acceptable reliability. Moreover, the traffic system in Turkey was perceived to be more internally and externally demanding and less functional compared to the traffic system in Sweden. The results suggest that the short TCS is a reliable and user-friendly measurement to understand the perception of road users.
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| 29. |
- Özturkcan, Selcen, et al.
(author)
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Introduction
- 2018
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In: Marketing Management in Turkey. - : Emerald Group Publishing Limited. - 9781787540682 - 9781787145573 ; , s. 3-8
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Book chapter (other academic/artistic)
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| 30. |
- Özyagci, Ali, 1982-, et al.
(author)
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Distributed Dynamic Spectrum Access in Multichannel Random Access Networks with Selfish Users
- 2010
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In: Wireless Communications and Networking Conference (WCNC), 2010 IEEE. - : IEEE. - 9781424463961 ; , s. 1-6
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Conference paper (peer-reviewed)abstract
- Dynamic spectrum allocation schemes enable users to share spectrum resources by exploiting the variations in spectrum demand over time and space. Performing dynamic spectrum allocation centrally can be prohibitively complex. Therefore distributed schemes in which users can access the available channels independently may be preferable to centralized allocation. However, in distributed dynamic spectrum access, the lack of central coordination makes it difficult to utilize the system resources efficiently. Furthermore, if some or all of the users decide to deviate selfishly from the commonly agreed access procedure, this may have a decisive effect on system performance. In this paper we investigate the effect of incomplete information and selfish behavior on system performance in wireless access systems. We extend previous work by studying a distributed multichannel wireless random access system. Using a game-theoretic approach, we analyze the behavior of users in the selfish system and derive the transmission strategies at the Nash equilibrium. Our results show that lack of information leads to substantial degredation in performance of cooperative systems. We also show that there is a large incentive for selfish behavior in such cooperative systems. Selfish behavior of all users, however, causes further performance degradation, particularly in high load settings.
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