Gazi University

Synthesis and characterization of TiO2 and Co3O4 nanoparticle-doped nanocomposite blend membranes for proton exchange membrane fuel cells

Abstract The development of proton exchange membranes with improved physicochemical, mechanical, thermal, and electrochemical properties is essential for advancing proton exchange membrane (PEM) fuel cell technologies. In this study, nanocomposite blend membranes were fabricated...

Comparison of GPS-derived peak running speed and accelerometer-derived metrics during submaximal running tests for monitoring neuromuscular fatigue in soccer players

This research aims to compare the parameters (Peak running speed and Player Load™ (A.U.)) of a submaximal run test (SRT) and a countermovement jump (CMJ) test used to assess neuromuscular fatigue (NMF) in soccer players. To achieve this, we employed a longitudinal repeated-measur...

Modeling of a dual-axis tilt-rotor mechanism for a high-performance quadrotor

Purpose This study aims to investigate the flight stability, control robustness and trajectory tracking performance of a quadrotor unmanned aerial vehicle (UAV) equipped with a dual-axis tilt-rotor mechanism, and compares its performance against conventional quadrotor designs. De...

Sibling Relationship Scale For Emerging Adults: Turkish Adaptation and Validation Study

The development of sibling relationships across the life course can be context and culture specific. The current study aimed to adapt and validate a new measure of sibling relationship quality the Emerging Adults’ Relationship with Sibling Scale (EARSS) to assess Turkish emerging...

MSC–Hydrogel Composite Systems for Knee Cartilage Repair and Osteoarthritis: A Systematic Review

Background: MSC–hydrogel composite systems were developed to overcome the poor cell retention and limited durability of conventional marrow stimulation and suspension-based MSC delivery. A rigorous synthesis of the clinical evidence is lacking. Objectives: To evaluate the safety...

Run-Level Fault Detection and SHAP-Based Diagnosis of Persistent Classification Difficulty in the Tennessee Eastman Process

Reliable fault detection in nonlinear process systems requires both accurate classification and interpretable analysis of faults with weak or near-normal signatures. This study develops an explainable, data-driven, and temporally informed multiclass framework for the Tennessee Ea...

Self-esteem in university students according to orthodontic treatment need (index of complexity, outcome, and need) and angle classification: A cross-sectional study

Objectives: Orthodontic malocclusion may affect both functional and psychosocial aspects of health; however, its relationship with global self-esteem in young adults remains unclear. This study aimed to compare self-esteem levels according to orthodontic treatment need assessed b...

Validation of the Turkish parent-reported Diabetes Eating Problem Survey-Revised (DEPS-R) for screening disordered eating behaviors in adolescents with Type 1 diabetes

Adolescents with Type 1 diabetes are at increased risk of eating disorders, which have been associated with suboptimal metabolic control and an increased risk of complications. Reliable and culturally adapted screening tools are essential for early identification. However, the pa...

Inhibition of miR-106a/b Modulates Autophagy-Related Gene Expression in the ULK1–Beclin-1–ATG12 Axis in Experimental Colitis

This study investigated the role of miR-106a and miR-106b in autophagy in a dextran sulfate sodium (DSS)-induced colitis model. DSS induced experimental colitis in Wistar rats, divided into control, DSS-induced-colitis, DSS + AntimiR-106a, DSS + AntimiR-106b, and DSS + scrambled...

Protective Effect of Ozone on Liver Ischemia–Reperfusion (I/R) Injury in Streptozotocin-Induced Diabetic Rats

The aim of this study was to investigate the effects of ozone therapy on the liver, one of the organs most affected by ischemia–reperfusion damage in people with diabetes. Thirty male Wistar albino rats were used in this study. The rats were randomly divided into four groups: the...

Effects of a Mindfulness Intervention on Volleyball-Specific Performance: A Randomized Trial

Mindfulness-based interventions have gained increasing attention in sport psychology as approaches to enhance attentional control, emotion regulation, and performance consistency under competitive pressure. This study examined the effects of an eight-week mindfulness-based interv...

Manual therapy versus home exercise in the treatment of bruxism: a randomized controlled trial with ultrasonographic, elastographic, and electromyographic assessment

Bruxism is a prevalent condition associated with pain, functional limitations, and neuromuscular alterations. Although non-invasive physiotherapy approaches such as manual therapy (MT) and home exercise (HE) are widely used, randomized controlled trials integrating both clinical...

Improved adaptation mechanism in MRAC scheme with nonlinear reference model for nonlinear uncertain systems

Abstract This paper proposes a direct Model Reference Adaptive Control (MRAC) architecture integrating a nonlinear reference model for a class of MIMO nonlinear systems with parameter uncertainty. The proposed Lyapunov-based adaptive rule makes the MRAC architecture favourable fo...

Effects of Substructure Color, Cement Shade, and Aging on the Color Change of Multilayer Zirconia Laminate Veneer Restorations

The purpose of the present study was to evaluate the effects of zirconia material type, substructure color, cement color, and aging (before and after aging) on the color change of laminate veneers (LVs) prepared from different multilayer translucent zirconia ceramics. LV preparat...

Oral Cancer Awareness, Screening Behavior, and Risk-Factor Recognition Among Patients Attending a University Dental Hospital

Background: Oral cancer remains a major global health concern, with increasing incidence and mortality, especially in developing countries. Public awareness is crucial for early detection and improved outcomes. Objective: To assess oral cancer awareness, recognition of risk facto...

AI Enabled Digital Twin Approaches in Nutrition and Dietetics: Evidence, Potential, and Limitations

Rapid advances in technology, particularly the integration of artificial intelligence (AI) technology into our lives, have increased interest in digital twin (DT) technology, which is a dynamic virtual model of a physical system. In the healthcare sector, DT is also seen as havin...

Eating disorder–related attitudes as predictors of pre-frailty/frailty in older adults: a cross-sectional clinical study

Frailty is a prevalent geriatric syndrome influenced by nutritional status, body composition, and functional capacity. Nevertheless, the role of eating disorder–related attitudes and behaviors in older adults is not definitively known. Therefore, this study was conducted to inves...

Post-traumatic dental care, mouthguard use, and preventive behaviour among athletes participating in sports with different contact intensities: a cross-sectional study

Sports-related dental and maxillofacial trauma remains a significant oral health problem in contact sports. This study aimed to investigate dental trauma experience, mouthguard use patterns, and post-traumatic dental care behaviours among elite combat sport athletes and to compar...