WoS
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14411/18
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Conference Object The Impact of Sarcopenia on Cervical Mechanosensitivity and Kinesiophobia in Geriatric Individuals Residing in Nursing Homes(Wiley, 2025) Acet, N.; Doganbaz, B.Conference Object Editorial The Sixth International Workshop on Nonlinear Analysis and Its Applications Preface by the Guest Editors(Univ Belgrade, Fac Electrical Engineering, 2025) Karapinar, Erdal; Cvetkovic, Marija; Cirovic, Natasa A.Article How Analytic Properties of Functions Influence Their Images Under the Limit q-Stancu Operator(Springer Basel AG, 2026) Gurel, Ovgu; Ostrovska, Sofiya; Turan, MehmetIn the study of various q-versions of the Bernstein polynomials, a significant attention is paid to their limit operators. The present work focuses on the impact of the limit q-Stancu operator Sq infinity,alpha on the analytic properties of functions when 0 < q < 1 and alpha > 0. It is shown that for every f is an element of C[0, 1], the function S-q,(alpha infinity)fadmits an analytic continuation into the disk {z : z+alpha/(1-q) < 1+ alpha/(1-q)}. In addition, it is proved that the more derivatives f has at x = 1, the wider this disk becomes. Further, if f is infinitely differentiable at x = 1, then the function S-q,(alpha infinity)fis entire. Finally, some growth estimates for (S-q,(alpha infinity)f)(z) are obtained.Article Regular AdS3 Black Holes From a Regularized Gauss-Bonnet Coupling(Elsevier, 2026) Alkac, Gokhan; Mesta, Murat; Unal, GonulWe obtain a three-dimensional bi-vector-tensor theory of the generalized Proca class by regularizing the Gauss-Bonnet invariant within the Weyl geometry. We show that the theory admits a regular AdS3 black hole solution with primary hairs. Introducing a deformation in the theory, a different regular AdS3 black hole solution is obtained. Charged generalizations of these solutions are given by coupling to Born-Infeld electrodynamics.Article Glycaemic Control and Complications in Haemodialysis Patients: The TURK-HEMODIAB Study(Oxford University Press, 2026) Gungor, Ozkan; Korucu, Berfu; Oguz, Ebru Gok; Eren, Necmi; Ural, Zeynep; Dheir, Hamad; Arici, MustafaBackground The most common cause of end-stage kidney disease is diabetes mellitus (DM). The most commonly used renal replacement therapy in Turkey and in many countries around the world is haemodialysis (HD). Glycaemia control is important in these populations. In this study we aimed to screen for glycaemic control and complications in a large population of diabetic HD patients in Turkey. Methods A total of 16 043 patients were screened in 253 dialysis centres in Turkey and 5038 diabetic HD patients were included in the study. At participating centres, patients' diabetes history, complications, medications, haemoglobin A1c (HbA1c) and other laboratory data were reviewed and recorded by nephrologists. Results The average age of the patients was 64.0 +/- 11.2 years and 56% were male. The mean HbA1c was 7.4 +/- 1.5%. Patients were divided into three groups according to the HbA1c level (<6.5%, 6.5-8% and >8%). As the HbA1c levels increased, the mean systolic blood pressure and diastolic blood pressure increased significantly. In addition, as the HbA1c levels increased, the number of patients with coronary artery disease, patients undergoing coronary artery bypass graft surgery and the rate of patients with diabetic retinopathy and vision loss increased. Diabetic foot disease and amputation rates were also higher in the group with poor glycaemic control. The number of patients using intensive or mixed insulin was also higher in the group with high HbA1c levels. In ordinal logistic regression analysis, age significantly decreased and higher body mass index slightly increased the risk of a higher HbA1c. Also, the need for a diabetic diet was greater in those with high HbA1c levels. Conclusion Our study highlights that the target values for diabetic HD patients in Turkey are partially compatible with the 2022 Kidney Disease: Improving Global Outcomes guidelines for diabetes management. Nevertheless, more effort and teamwork are needed to improve patient outcomes.Article Randomised Comparison Between Navigation and Non-Navigation Camera Control Performance in a Surgical Simulation Task Using a Haptic Device Interface(Wolters Kluwer Medknow Publications, 2026) Cagiltay, Nergiz Ercil; Topalli, Damla; Tuner, Emre; Berker, MustafaIntroduction:Navigation skills for controlling the camera in the surgical field are critical for many minimally invasive surgery (MIS) procedures. Currently, endoscopes lack integrated navigation aids, making camera control a challenging task. This experimental study aims to investigate the effect of navigation guidance on the performance of beginners.Patients and Methods:A custom computer-based simulation environment was developed for this study, featuring two conditions - one with navigation guidance and one without - focussed on a camera-cleaning task. Participants (64 beginners) were randomly assigned to one of these groups and used two haptic devices to simulate the endoscope and surgical tools.Results:Participants in the guided condition performed significantly better than those in the unguided condition. Notably, female participants completed the task in significantly less time under the guided condition compared to the unguided one.Conclusion:These findings suggest that incorporating navigation aids into endoscope interfaces could improve user performance, especially for beginners. Medical device manufacturers should consider adding navigation features to enhance usability. In addition, simulation-based instructional systems should integrate navigation aids to better support surgical training.Letter Reply to Letter to the Editor: Critical Appraisal of Caval Valve Implantation Procedure in 7 Cases of Torrential Tricuspid Regurgitation(Kare Publ, 2026) Bozbas, Huseyin; Barcin, Cem; Asfour, Mohamed; Celebi, Savas A.; Cam, Ersin; Ilkay, ErdoganArticle Comparative Analysis of Vibration Axis Effects on Ultrasonic Vibration-Assisted Machining of Inconel 718(MDPI, 2026) Namlu, Ramazan Hakki; Kilic, Zekai MuratInconel 718 is widely utilized in critical engineering sectors, particularly aerospace, owing to its exceptional creep resistance, corrosion resistance, and retention of mechanical strength at elevated temperatures. However, its high hardness, low thermal conductivity, and strong work-hardening tendency make it extremely difficult to machine using conventional techniques. Ultrasonic Vibration-Assisted Machining (UVAM) has emerged as an effective strategy to overcome these limitations by superimposing high-frequency, low-amplitude vibrations onto the cutting process. Depending on the vibration direction, UVAM can significantly change chip formation, tool-workpiece interaction, and surface integrity. In this study, the influence of three UVAM modes-longitudinal (Z-UVAM), feed-directional (X-UVAM), and multi-axial (XZ-UVAM)-on the machining behavior of Inconel 718 was systematically investigated. The findings reveal that XZ-UVAM provides the most advantageous outcomes, primarily due to its intermittent cutting mechanism. Compared with Conventional Machining (CM), XZ-UVAM reduced cutting forces by up to 43% and areal surface roughness by 37%, while generating surfaces with more uniform topographies and smaller peak-to-valley variations. Furthermore, UVAM enhanced subsurface microhardness as a result of the surface hammering effect, which may improve fatigue performance. XZ-UVAM also effectively minimized burr formation, demonstrating its potential for high-quality, sustainable, and efficient machining of Inconel 718.Article Relationship Between Crustal Magnetic Anomalies and Earthquake Activity in Malatya and Surrounding Region After the 2023 Kahramanmaraş Earthquakes, Southeastern Türkiye(Springer Int Publ Ag, 2026) Bilim, Funda; Kosaroglu, Sinan; Aydemir, AttilaThe East Anatolian Fault Zone (EAFZ) is one of the most critical and active tectonic elements in T & uuml;rkiye, and there are a significant number of high-magnitude earthquakes along with the EAFZ, mentioned in the historical documents and recorded in the instrumental periods in southeastern Anatolia. The latest devastating tectonic activity occurred on February 6, 2023 (Mw = 7.7), followed by another high-magnitude earthquake in the same day (Mw = 7.6) on this fault zone. More than 15,000 aftershocks (some of them are Mw >= 4.0) have been recorded since then. The EAFZ is composed of several sub-fault zones and their segments with different elongations. Although the majority of these segments indicate ruptures during the main shock and aftershocks, some of them (including the Malatya Fault) are still aseismic, including great potential to trigger high-magnitude earthquakes. In this study, we interpreted the magnetic data and the epicenter distributions of earthquakes to correlate the tectonic structures and active fault zones. The fault indicators (with maxspots) based on the different types of derivative transformations provided good correlations between the faults and magnetic discontinuities because almost all fault zones in the study area have been filled by the magmatic intrusions to create magnetic anomalies. The maxspots are also another practical tool to determine the possible segments of faults and/or exact locations of undefined magmatic intrusions. It is possible to claim that the faults have provided conduits for the intrusion of the causative bodies while triggering the earthquakes in this critical area. The earthquakes are generally recorded along the southern fault segments. As a result of these methods and correlations, we determined the exact location and the length of the Malatya Fault (approximately 220 km), which is represented with the low-magnitude earthquakes.Article Understanding Visual Product Language in Industrial Design Education: A Four-Phase Pedagogical Approach(Springer, 2026) Sarisin Coskun, Merve; Berberoglu, Hatice Merve DemirciThe ability to construct and interpret visual language is a critical competency in industrial design education, enabling designers to communicate meaning, identity, and value through products. Yet, pedagogical practices often remain fragmented, short-term, and limited in scope, offering little cumulative support for developing these skills. Addressing this gap, this study introduces and evaluates a structured four-phase pedagogical framework designed to progressively foster visual language competencies in undergraduate education. Using a Design-Based Research (DBR) approach, the framework was implemented in a third-year studio course, encompassing: (1) redesigning existing products, (2) meaning generation through adjectives, (3) brand identity-focused product design, and (4) product family design. Data were collected through student design outputs, a 13-item questionnaire, and instructor reflection notes. Thematic analysis and descriptive statistics were applied to triangulate results. Results show that the approach strengthened students' ability to analyze, generate, and transfer visual language. Early phases posed challenges such as adaptation and time constraints, but later phases -particularly brand-oriented and product family design- were perceived as highly effective in consolidating analytical and creative competencies. Questionnaire responses indicated significant increases in students' confidence, while qualitative insights underscored the value of structured sequencing, guided critiques, and iterative reflection in supporting cumulative learning. By integrating theory and practice within authentic studio settings, this study offers a structured and adaptable model that unifies fragmented practices in teaching product semantics, meaning-making, and brand-oriented design. Beyond industrial design, the results suggest broader implications for project-based learning, where phased structures foster deeper engagement, transferable skills, and sustained confidence.Article Distance-Based Estimation Under Progressive Type-I Interval Censoring(Taylor & Francis Ltd, 2026) Balakrishnan, N.; Castilla, E.Monte Carlo simulation is used to demonstrate improved estimation performance of proposed distance-type estimators for lifetime models under progressive Type-I interval censoring. We propose novel distance-based estimators for lifetime models under progressive Type-I interval censoring. These estimators minimize the discrepancy between observed and model-based conditional failure probabilities using either quadratic or Mahalanobis distances, providing natural alternatives to maximum likelihood estimators (MLEs). Through extensive Monte Carlo simulations, we demonstrate that the Mahalanobis estimator outperforms MLE, particularly under heavy censoring or sparse data. The quadratic estimator also yields competitive results, especially under model misspecification. Two real data examples illustrate the practical advantages of the proposed approach.Article Creative Design Engineering Education for Human-Society Integrated Intelligent Systems(Sage Publications Inc, 2026) Erden, Zuhal; Erden, AbdulkadirThe essence and vital roots of scientific activities create theoretical propositions and models that provide unique integrity of the associated concepts, definitions, approaches and methodological components. Design engineering education has made great progress to date by integrating modern methods and tools into the existing process models focused on unique curriculum programs for students' progress during various scientific and technical levels. Contemporary and integrated socio-scientific environments, however, are generally more productive and initiative for future success stories of engineering graduates with high qualifications and science/technology-motivated professional life. Today's global transition from the "industrial-digital age" to the "sustainable knowledge economy and digital society" opens a new path for design engineering education, enforcing a paradigm shift towards training creative professionals who develop and implement new knowledge in real-world social environments. This paper presents and discusses the models, methods and tools to establish a road-map into next-generation creative design engineering education paradigm.Article Nonparametric Tests for Comparing Reliabilities of Coherent Systems at Specific Mission Time(IEEE-Inst Electrical Electronics Engineers Inc, 2026) Xu, Xuan; Zhu, Xiaojun; Balakrishnan, Narayanaswamy; Ng, Hon Keung TonyReliability analysis of coherent systems is critical for evaluating the performance of systems whose functionality depends on the reliability of their components. Traditional parametric methods for comparing reliabilities of coherent systems assume a specific probability distribution for component lifetimes, which may result in inaccurate results when these model assumptions are violated. This article introduces nonparametric procedures using system-level data with known signatures to compare the reliabilities of systems. The proposed methodology avoids parametric distributional assumptions for component lifetimes while relying on the standard assumption in signature-based reliability analysis. Specifically, a two-sample likelihood ratio test procedure is proposed to demonstrate a component or system with superior reliability. Monte Carlo simulations are performed to evaluate the performance of the proposed methods. Furthermore, we examine the effect of system structure on test power and determine favourable structures to enhance the power performance of the test. Practical examples are used to illustrate the proposed test procedures.Article A Decomposition of the Limit Q-Bernstein Type Operators Via a Universal Factor(Springer Basel AG, 2026) Ostrovska, Sofiya; Pirimoglu, Lutfi Atahan; Turan, MehmetThe focus of this work is on the properties of the unifying operator Uq\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$U_q$$\end{document} on C[0, 1], which serves as a universal left factor in a decomposition of the limit q-Bernstein type operators, L infinity,q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$L_{\infty ,q}$$\end{document}. More precisely, the factorization L infinity,q=Uq degrees TL\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$L_{\infty ,q}= U_q\circ T_L$$\end{document}, where TL\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$T_L$$\end{document} is a linear operator on C[0, 1] depending on L, holds. It is shown that this factorization facilitates the derivation of new results and/or the simplification of proofs for the known ones.Article Mapping the Literature on Thermal Tourism: A Bibliometric and Content Analysis(Conscientia Beam, 2025) Alqaifi, Faten; Tengilimoglu, Dilaver; Aras, Ilknur ArslanThis study explores and maps the existing literature on thermal tourism to provide comprehensive insights and inform future research directions. The research design is based on a bibliometric analysis of 48 documents published between 2013 and 2023 and indexed in the Web of Science database. Data were processed and visualized using Microsoft Excel and Bibliometrix, followed by a content analysis of 42 English-language articles to capture thematic developments in the field. The findings indicate that, despite a temporary decline during the COVID-19 pandemic, publications on thermal tourism have shown strong growth and recovery, with an annual growth rate of 46.65%. The most significant contributions originated from Portugal, China, Spain, Taiwan, Turkey, and Japan, with research disseminated across 37 journals. Four central themes were identified: (1) tourist behaviors and satisfaction, (2) demand and motivations, (3) quality and resource management, and (4) strategic and sustainable development. Among these, tourist behaviors and satisfaction emerged as the most prominent research area, representing 38.10% of the analyzed literature. This paper addresses a gap in the literature by mapping the knowledge landscape in the relatively underexplored field of thermal tourism, highlighting its growth potential and proposing a future research agenda. The practical implications suggest that recognizing these trends and themes can help policymakers, industry stakeholders, and academics develop strategies to enhance sustainable practices and expand opportunities in thermal tourism.Article Utilizing POCUS in the Diagnosis of Small Bowel Obstruction and the Barriers to Its Implementation in Resource-Limited Settings: A Systematic Review(Springer Int Publ AG, 2026) Razakh, Ayesha; Uzor, Angelina; Htoon, April; Valko, MichalPurposeSmall bowel obstruction (SBO) is a common surgical emergency that can lead to significant morbidity, mortality, and healthcare costs, particularly when diagnosis is delayed. In rural and resource-limited emergency settings, advanced imaging techniques like computed tomography (CT) may not be readily available. As a result, clinicians often rely on physical examinations and plain radiographs which can be unreliable. Point-of-care ultrasound (POCUS) provides a rapid, radiation-free and cost-effective diagnostic alternative that can be performed directly at the bedside.MethodsWe conducted a systematic review of published literature evaluating the diagnostic accuracy and clinical utility of POCUS in identifying SBO on the following databases PubMed, Web of Science, Cochrane Library and Google Scholar databases from January 2000 to December 2024. Studies were screened and selected based on the inclusion and exclusion criteria adhering to PRISMA 2020 guidelines.ResultsThe sensitivity of POCUS for SBO ranged from 85.0 to 100%, while specificity ranged from 54.0 to 100%. Diagnostic accuracy remained high across a broad range of expertise overcoming operator dependence. Examination durations are approximately 10-11 min, which is markedly shorter than 45-min to 3-h by CT.ConclusionPOCUS presents as a practical, scalable and cost-saving tool for diagnosing SBO in rural emergency care, addressing significant gaps where CT is not available and also facilitates faster diagnosis by timely identification of specific features. Future efforts should focus on developing validated algorithms for resource-limited settings allowing immediate care management.Article On Nonlocal Boundary Caputo Tempered Fractional Coupled Systems in Banach Spaces(SpringerNature, 2026) Kadari, Halima; Salim, Abdelkrim; Benchohra, Mouffak; Karapinar, ErdalWe employ M & ouml;nch's fixed point theorem along with the technique of measure of non-compactness to establish the existence of solutions for a coupled system of tempered fractional differential equations with nonlocal boundary conditions. Additionally, we investigate the Ulam stability of the system as a qualitative aspect of our analysis. Finally, an illustrative example is provided to demonstrate that our approach meets the specific requirements set forth in the paper.Article Shanghai's High-Rise Buildings: Exploring Space Efficiency, Structural Systems, Forms, Materials and Core Designs(Taylor & Francis Ltd, 2026) Aktas, Kurt Orkun; Aslantamer, Ozlem Nur; Aktas, Gozen Guner; Ilgin, Huseyin EmreThis study examines the architectural and structural design considerations influencing space efficiency in Shanghai's high-rise buildings. Understanding space efficiency is significant because it directly affects land-use intensity, economic returns, and sustainability outcomes. The objective of this study is to quantify space efficiency ratios by analyzing the relationships between core types, function, form, and structural systems, and assess temporal and comparative benchmarks for Shanghai within the global context. The novelty lies in its combined focus on architectural and structural determinants of space efficiency, supported by data on 43 high-rise buildings in Shanghai. Methodologically, this study relies on quantitative analysis of Net Floor Area (NFA), Gross Floor Area (GFA), and core ratios, supplemented with comparative evaluation of building forms, materials, and structural systems. The key findings reveal: (1) average space efficiency at 75% with core-to-GFA ratios of 23%, varying between 52-93% and 5-33% respectively; (2) the dominance of prismatic forms supported by composite outriggered frame systems; (3) a decline in efficiency with increasing building height due to larger service cores. Practically, this research highlights opportunities for stakeholders - including architects, engineers, and policymakers - to adopt lightweight materials, prefabrication techniques, and smart building systems that improve space efficiency in future high-rise developments.Article Comparison of Voice Call Based and Multimodal Telerehabilitation After Total Knee Arthroplasty: A Randomized Controlled Trial(Taylor & Francis Inc, 2026) Aslan, Sema Nur; Bozgeyik-Bagdatli, Sibel; Demirel, Murat; Atilla, Bulent; Kinikli, Gizem IremBackground Telerehabilitation has emerged as a promising approach in postoperative care following total knee arthroplasty(TKA);nevertheless,the relative effectiveness of different telerehabilitation modules is still under discussion, leaving room for alternative and multimodal program approaches. Objectives This study aimed to compare the effectiveness of a multimodal telerehabilitation(MTR) and voice call based telerehabilitation(VTR) in patients undergoing TKA. Methods A two-arm randomized controlled trial was conducted with 24 patients (68.42 +/- 9.28y) in the MTR group and 21(71.19 +/- 7.26y) in the VTR group. The MTR group received weekly digital booklets containing asynchronous exercise videos, one voice call, one video call,and text messages,for a total of three contacts per week. The VTR group received weekly printed booklets and voice calls three times a week(on alternate days) over the 8-week intervention period. Outcomes were assessed face to face at discharge, and at the 4th and 8th postoperative weeks. Measures included Visual Analog Scale(VAS), active and passive range of motion(ROM), Knee Osteoarthritis Outcome Score-Physical Function(KOOS-PS), Five Repetition Sit to Stand Test(5xSST), Brief Fear of Movement(BFoM) Scale, isometric Quadriceps muscle strength, Forgotten Joint Score-12(FJS-12),Exercise Adherence Rating Scale(EARS). The primary outcome was active knee flexion ROM. Statistical significance was set at p < .05; effect sizes (r, W) were reported for the Mann - Whitney U and Wilcoxon tests. Results After 8 weeks, a statistically significant difference in pain during activity was observed between the MTR and VTR groups (p < .001, r = 0.62). Both groups showed significant gains in active and passive knee flexion ROM, 5xSST, and KOOS-PS scores (all p < .001), while the MTR group also improved in rest pain, knee extension, and BFoM (all p < .001). At week 8, statistically significant differences were observed between the MTR and VTR groups across all outcome measures (all p < .001). Conclusion Both telerehabilitation approaches were effective in improving pain, ROM, and functional outcomes after TKA.Although this study did not compare outcomes with conventional in-person rehabilitation, MTR showed greater overall improvements than VTR. Nevertheless, VTR remains a reasonable alternative when MTR cannot be implemented.
