Afyon Kocatepe 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...

Deferred Epigraphical Convergence for Sequences of Lower Semicontinuous Functions

In this paper, we introduce deferred epi-convergence for sequences of lower semicontinuous functions defined on metric spaces. The notion is formulated by using deferred Kuratowski convergence of epigraphs. In this framework, ordinary Ces\`aro averages are replaced by averages ta...

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...

Self-Sustaining Quantum Information Engine Operating on Discrete Spacetime Voxels via Toroidal Geodesics and Interaction-Free Measurement

This paper proposes a theoretical model for a self-sustaining Quantum InformationEngine (QIE) operating on discrete, volumetric spacetime at the Planck scale (voxels). Bydirecting photons into toroidal spiral trajectories (toroidal geodesics) within a localizedKerr-metric curvatu...

Self-Sustaining Quantum Information Engine Operating on Discrete Spacetime Voxels via Toroidal Geodesics and Interaction-Free Measurement

This paper proposes a theoretical model for a self-sustaining Quantum InformationEngine (QIE) operating on discrete, volumetric spacetime at the Planck scale (voxels). Bydirecting photons into toroidal spiral trajectories (toroidal geodesics) within a localizedKerr-metric curvatu...

Effect of high irradiance and short exposure times on the shear bond strength of metal and ceramic brackets

Orthodontic brackets are bonded to the tooth surface using adhesive systems, and the quality of this bonding plays a critical role in the success of orthodontic treatment. Light-cured composite resins are widely used for this purpose, and their effectiveness depends on several fa...

Efficient removal of regorafenib from aqueous solutions using KOH-activated hazelnut husk-derived activated carbon: adsorption mechanism, kinetics, isotherms and thermodynamics

In this study, activated carbon was produced from hazelnut husks, an agricultural biomass waste, by chemical activation and thermal carbonization, and the performance of the resulting adsorbent in removing Regorafenib from aqueous solutions was investigated. The textural properti...

Tumor budding and tumor-associated lymphocytic response as histopathological indicators of high-risk disease in head and neck cutaneous squamous cell carcinoma

Tumor budding (TB) and tumor-associated lymphocytic response (TALR) have emerged as promising histopathological indicators of tumor aggressiveness across epithelial malignancies. Recent studies have suggested that both tumor invasive activity and host immune response contribute s...

Impact of adjuvant endocrine therapy on disease-free survival in early triple-positive breast cancer: a multicenter retrospective cohort study of the Turkish oncology group

Triple-positive breast cancer (TPBC), characterized by concurrent ER, PR, and HER2 positivity, poses unique therapeutic challenges due to ER–HER2 crosstalk. The optimal adjuvant endocrine therapy in TPBC patients receiving anti-HER2 regimens remains poorly defined. This multicent...

Evaluation of patients’ anxiety and perceptions toward dental imaging modalities: a cross-sectional study

The aim of this study was to evaluate patients’ anxiety and perceptions regarding periapical radiography, panoramic radiography, cone-beam computed tomography (CBCT), and ultrasonography, and to examine the differences among these modalities from the patient’s perspective. This c...

Homology aware benchmarking of deep learning models for CAZy enzyme family classification

The CAZy database organizes carbohydrate-active enzymes into more than 800 families with distinct biochemical roles, making automatic family assignment from sequence a high-value task in metagenomics and enzyme engineering. Although recent deep learning studies have reported stro...