Scopus İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.12469/1248
Browse
Recent Submissions
Article When Care Faces Violence: Anticipatory Grief, Chronic Vigilance, and Ambiguous Loss Among Street Dog Care-Givers in Istanbul(MDPI, 2026) Yildirim, MineThis article examines how Turkey's 2024 amendment to the Animal Protection Law reshapes volunteer caregiving for free-roaming dogs in Istanbul by reconfiguring the practical conditions under which care is sought, coordinated, and sustained. Drawing on 43 in-depth interviews and five months of fieldwork (1 July-30 November 2025), this study combines constructivist grounded theory with reflexive thematic analysis to trace how legal change is encountered through everyday governance interfaces and how these encounters reorganize caregivers' routines, capacities, and moral worlds. The analysis yields four interlocking findings. First, caregivers describe a temporality of living in pre-loss, in which anticipated removal, disappearance, and uncertain outcomes generate chronic vigilance, anticipatory grief, and ambiguous loss without closure. Second, caregiving is increasingly recalibrated as risk management: commitments persist, but intervention narrows through heightened exposure to complaints, reputational scrutiny, and fears that help-seeking may backfire. Third, institutional pathways-hotlines, shelter intake, and municipal responses-are experienced as discretionary and opaque, producing a fluctuating threshold between assistance and harm that conditions whether caregivers engage official systems at all. Fourth, this study identifies a recurring veterinary bottleneck at the street-clinic-recovery handover, where limited short-term holding capacity stalls treatment trajectories and displaces recovery labor into precarious domestic and informal spaces. Together, these findings argue that caregiver well-being is not ancillary to animal welfare governance but constitutive of it. It shapes the continuity of monitoring, the timeliness of intervention, and the everyday mediation through which coexistence is maintained under intensified legal and political pressure.Article Citation - Scopus: 10Validation of Morality as Cooperation Questionnaire in Turkey, and Its Relation to Prosociality, Ideology, and Resource Scarcity(Hogrefe Publishing GmbH, 2021) Yilmaz, Onurcan; Doǧruyol, Burak; Harma, MehmetBook Part Citation - Scopus: 1Tourism Research(Elsevier, 2025) Kozak, Metin; Wen, Jun; Hu, FangliBook Part The Ripple Effects of The Icelandic Financial Crisis: Social Fabric and Public Health in Post-2008 Iceland(Springer Nature, 2026) Harma, MehmetBook Part The Nude Auteur, Denuding Filmmaking(Bloomsbury Publishing Plc., 2022) Çiftçi, AyçaConference Object Target Handling Modalities with Obstacle Avoidance for Planar Soft Growing Manipulator Design(Institute of Electrical and Electronics Engineers Inc., 2025) Stroppa, Fabio; Nurcan, Ozan; Kalafatlar, Omer; Astar, AhmetArticle The 2020 Sivrice Earthquake (MW6.8) and Its Seismotectonic Linkage to the 2023 Kahramanmaraş Earthquakes (MW7.8 and 7.6)(Springer, 2026) Yalcin, Hilal Domac; Gunes, Yavuz; Kurcer, Akin; Budakoglu, Emrah; Elmaci, Hasan; Ozalp, Selim; Kayadibi, OnderA series of earthquakes along the East Anatolian Fault Zone (EAFZ) started with the January 24, 2020, Sivrice (Elazığ) Earthquake (MW6.8) and culminated in the the catastrophic Kahramanmaraş Earthquakes (MW7.8 and MW7.6) on February 6, 2023. This study explores how the 2020 Sivrice event influenced the 2023 Kahramanmaraş earthquakes using field surveys and seismotectonic analyses.The 2020 earthquake, occurring in the northeastern part of Pütürge Segment, was followed by field surveys and Differential interferometry (DInSAR) analysis to determine fault geometry and slip distribution. Seismological studies, including moment tensor solutions, stress tensor analysis, and Coulomb stress changes, provided insights into the fault dynamics. Surface deformations were observed in a 50 km section of the Pütürge segment, showing R, R', T, P, and Y fractures typical of a left-lateral deformation zone. The moment tensor analysis revealed a left-lateral strike-slip fault trending N65 degrees E, with a minor normal component. The timing and location of the earthquakes, suggest that the rupture progresses bilaterally. The analysis of Coulomb stress changes showed that the 2020 event transferred stress to the Arıkonak sub-segment, the Yarpuzlu restraining double-bend, the Erkenek Segment of the EAFZ, as well as the Gerger and Narince Segments of the Southeastern Anatolian Thrust Zone. These areas were further stressed by the 2020 earthquake, setting the stage for the February 2023 Kahramanmaraş events. Thus, the 2020 Sivrice earthquake served as a trigger for the catastrophic 2023 earthquakes. The Arıkonak sub-segment, Gerger, and Narince segments are still potential sources of earthquake hazard.Article Strategic Supplier Selection with T-SF MEREC-AROMAN and T-SF MEREC-CoCoSo(SAGE Publications Ltd, 2026) Eriş, Aksel; Fazlıoğlu, Serra; Samanlioglu, FundaArticle Robust HMM-Based Remaining Useful Life Estimation Using a Ridge-Regularized EM Algorithm(MDPI, 2026) Kucukdag, Halime Beyza; Kirkil, Gokhan; Hekimoglu, MustafaEstimating the remaining useful life (RUL) of engineering systems is crucial for maintenance planning and the reliability of complex mechanical units. Accurate RUL predictions support timely interventions and help to prevent unexpected failures. This study proposes a statistically robust framework that models degradation signals up to the end of life using a hidden Markov model (HMM) with a simple-failure structure and an absorbing terminal state. The proposed method estimates state-dependent linear emission parameters and transition probabilities using a ridge-regularized expectation-maximization (EM) algorithm. The ridge penalty stabilizes slope estimates under limited data, while a robust Huber-based scale estimator reduces sensitivity to outliers in the sensor-derived health indicator. RUL is computed as a weighted expected time to absorption, combining transient-state survival characteristics with smoothed posterior-state probabilities obtained via the forward-backward algorithm. This yields a low-variance state-aware estimator that preserves the probabilistic structure of the HMM. Simulation studies show that the proposed ridge-regularized EM significantly reduces parameter variance and improves predictive accuracy compared with the baseline weighted least squares EM (WLS-EM). A real-data case analysis demonstrates further improvements in RUL estimation accuracy and smoother, more reliable prediction trajectories. Overall, the framework provides a robust and interpretable approach for practical prognostics applications.Book Part Social Finance in Developed Markets: Successes and Failures(Springer Nature, 2025) Ozturkkal, BelmaConference Object Citation - Scopus: 1RESTORATIVE: Improving Accessibility to Cultural Heritage with AI-Assisted Virtual Reality(Bulgarian Academy of Sciences, Institute of Mathematics and Informatics, 2025) Fatih Yetkin, E.; Pişkin, Şenol; Peker, Hasan; Ballı, TuğçeConference Object Real-Time Pose Recognition Using Smartphone-Friendly Computer Vision(Institute of Electrical and Electronics Engineers Inc., 2025) Zaghloul, Omar H. A.; Hasoǧlu, Kadir; Khalil, Yousef; Alsan, Hüseyin Fuat; Arsan, TanerArticle Quantum Information Flow in Microtubule Tryptophan Networks(MDPI, 2026) Craddock, Travis J. A.; Gassab, Lea; Pusuluk, OnurNetworks of aromatic amino acid residues within microtubules, particularly those formed by tryptophan, may serve as pathways for optical information flow. Ultraviolet excitation dynamics in these networks are typically modeled with effective non-Hermitian Hamiltonians. By extending this approach to a Lindblad master equation that incorporates explicit site geometries and dipole orientations, we track how correlations are generated, routed, and dissipated, while capturing both energy dissipation and information propagation among coupled chromophores. We compare localized injections, fully delocalized preparations, and eigenmode-based initial states. To quantify the emerging quantum-informational structure, we evaluate the L1 norm of coherence, the correlated coherence, and the logarithmic negativity within and between selected chromophore sub-networks. The results reveal a strong dependence of both the direction and persistence of information flow on the type of initial preparation. Superradiant components drive the rapid export of correlations to the environment, whereas subradiant components retain them and slow their leakage. Embedding single tubulin units into larger dimers and spirals reshapes pairwise correlation maps and enables site-selective routing. Scaling to larger ordered lattices strengthens both export and retention channels, whereas static energetic and structural disorder suppresses long-range transport and reduces overall correlation transfer. These findings provide a Lindbladian picture of information flow in cytoskeletal chromophore networks and identify structural and dynamical conditions that transiently preserve nonclassical correlations in microtubules.Conference Object Privacy-Aware PCA with Noise Perturbation for IIoT Data(Institute of Electrical and Electronics Engineers Inc., 2025) Shafi, Rana; Shilpakar, Simran; Yetkin, E. Fatih; Balli, TuǧçeConference Object Prompt2Product: Integrating Stable Diffusion for Parametric Modeling and Manufacturing of Ceramic Products(Education and Research in Computer Aided Architectural Design in Europe, 2025) Gokmen, Sabri; Alsan, H. Fuat; Gokmen, Pelin Alkan; Arsan, TanerBook Part Psychological Mechanisms of Collective Mental Time Travel During the COVID-19 Pandemic(Springer Nature, 2025) Dönerkayalı, Ceren; Öner, Sezin; Watson, Lynn AnnArticle pH-Driven β2AR Dynamics Reveal Loop-Mediated Allosteric Communication(Amer Chemical Soc, 2026) Sogunmez Erdogan, Nuray; Akten, E. DemetMembrane protein structure and dynamics are highly sensitive to environmental conditions, including changes in pH that can alter the protonation states of ionizable residues and, in turn, influence local electrostatics and stability. Constant-pH molecular dynamics (CpHMD) provides a framework to explore such effects by allowing dynamic proton exchange during simulations. Here, we applied CpHMD at pH:6.5, 7.0, and 8.0, alongside conventional MD, to examine how pH variations may influence the local conformational behaviors of the beta 2-adrenergic receptor (beta 2AR). During the 1.2-mu s-long total simulation, loop regions rich in titratable residues, particularly ICL3 and ECL2, showed the strongest responses to protonation changes. CpHMD trajectories suggested a pH-dependent redistribution of loop flexibility and hydrogen-bonding patterns, producing a see-saw-like effect, while fixed-protonation Control runs showed more constrained behavior. Across all simulations, the key GPCR microswitches, such as the ionic lock, the Y-Y gate, the NPxxY and PIF motifs, and the Trp286-Phe290 toggle pair, stayed within the ranges expected for an inactive receptor. This suggests that pH changes mainly influence local loop motions in the inactive receptor without pushing it toward activation-like states. Finally, mutual information analysis on both C alpha atoms and dihedral angles revealed altered communication between the extracellular and intracellular loops under different pH environments. While limited in time scale, these results provide a computational perspective on how protonation dynamics can modulate the GPCR behavior and highlight the value of incorporating pH effects in molecular-level investigations.Editorial Preface(Institute of Electrical and Electronics Engineers Inc., 2025) Zhang, Shengfang; Zeng, Pingliang; Ren, Zunfeng; Li, Yonghui; Li, Xiaofeng; Zhao, Haiquan; Luo, YanbinArticle Citation - Scopus: 3Optimum Utilization of On-Demand Manufacturing and Laser Polishing in Existence of Supply Disruption Risk(Elsevier Ltd, 2022) Erkan Kaya, Burak; Hekimoğlu, Mustafa; Ulutan, Durul; İşler, ZülalConference Object Optimum Scheduling of Energy Storage Systems in Distribution Grids to Minimize the Duck Curve Slope(Institute of Electrical and Electronics Engineers Inc., 2025) Behbahani, Fatemeh Mohammadi; Ceylan, Oguzhan; Ozdemir, Aydogan
