Kırşehir Ahi Evran Üniversitesi Kurumsal Akademik Arşivi
DSpace@Kırşehir, Kırşehir Ahi Evran Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve yayınların etkisimi artırmak için telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Pre-Service Teachers' Process of Developing and Using Content With AI
(John Wiley and Sons Inc, 2025) Dulkadir Yaman, Nihal
Artificial intelligence (AI) is a technology that has been used quite effectively in the 21st century and has the potential to directly affect education as well as many other fields. AI is supported in many areas such as developing skills in education, increasing the effectiveness of education and student motivation, contributing to the professional development of teachers, and reducing institutional workload. This study aims to examine the perceptions and usage habits of pre-service teachers (PT) towards chatbots, especially ChatGPT. A case study was conducted for the research, and data were obtained from the individual interviews, Bot Usability Scale and the Individual Innovativeness Scale. The participants of the study were PT studying at a state university. The findings of the study show that the PT mostly used chatbots for educational, informational and unethical purposes. In addition, it was found that the PT individual innovativeness levels and their attitudes towards AI were related.
First-Principles Study of K2XH4 (X= Mg, Ca) Hydrides: Structural, Mechanical, and Optoelectronic Aspects for Hydrogen Storage Applications
(Elsevier Ltd, 2026) Candan, Abdullah; Akbudak, Salih
Perovskite-type hydrides have emerged as promising solid-state hydrogen storage materials owing to their high volumetric density and safety. Motivated by this potential, Density Functional Theory (DFT) and Ab Initio Molecular Dynamics (AIMD) simulations were performed to investigate the structural, optoelectronic, thermodynamic, mechanical, and hydrogen storage properties of K2XH4 (X = Mg, Ca) hydrides. Specifically, phonon dispersion and negative formation enthalpies indicate that both compounds are dynamically and thermodynamically stable. Moreover, AIMD simulations performed for 5000 fs confirm their thermal stability, showing no structural distortion during the simulation. Electronic structure calculations reveal wide band gap semiconducting behavior: 3.43 eV for K2MgH4 and 3.41 eV for K2CaH4 within GGA-PBE, further increased to 4.67 eV and 4.60 eV with HSE06. From a mechanical perspective, elastic constants satisfy the Born stability criteria, confirming mechanical stability, while Pugh's ratio and Cauchy pressure suggest brittle behavior. Optical analyses indicate strong activity in the UV region. Regarding hydrogen storage, gravimetric capacities (desorption temperatures) were calculated as 3.80 wt% (207.87 K) for K2MgH4 and 3.30 wt% (254.88 K) for K2CaH4. Overall, K2MgH4 appears suitable for moderate hydrogen storage, whereas K2CaH4 is more favorable for applications requiring structural resilience and efficient hydrogen release.
Preparation and Characterization of Composite İnterference Screws
(SAGE Publications Ltd, 2026) Kararmaz, Safa; Garip Çelik, Fatma Duygu; Özgen, Alkın; Büyükuysal, Orhan Gokalp; Basat, Çağdaş Hakkı; Mert, Faruk; Aydın, Halil Murat
The Anterior Cruciate Ligament (ACL) is an important connector between the thigh bone and shinbone in the knee joint. In sport activities, ACL tears commonly occur hence they need surgery to be rebuilt. These are patellar tendons located in front of the knee and hamstring tendons found on its posterior side that are mostly used for reconstruction of the anterior cruciate ligament. These grafts can be secured by using bioabsorbable interference screws by surgery. Here we report development of composite interference screws consisting of 70% (w/w) Poly (Lactic Acid-co-Glycolic Acid) (PLGA) and 30% (w/w) β-Tricalcium Phosphate (β-TCP) with different sizes using plastic injection molding. A series of characterization techniques was used to validate the final product including Thermal Gravimetric Analysis, Fourier Transform Infrared Spectroscopy, Inductively Coupled Plasma Mass Spectrometry, Scanning Electron Microscopy. Interference screws were tested mechanically and finally biocompatibility was investigated. The studies carried out here are thought to contribute to a better understanding of the screws used in the treatment of cruciate ligament injury and new biomaterials that can be developed for treatment.
Inequalities in Doctoral Education From the Perspective of Nursing Doctoral Students
(John Wiley and Sons Inc, 2026) Sürme, Yeliz; Sezer Efe, Yağmur; Caner, Nuray; Söyünmez, Selin
Aims: This study aims to identify the inequalities encountered during the nursing doctoral process and propose potential solutions. Design: This study was conducted as qualitative and descriptive research. Methods: The study was conducted between January and February 2025 with 18 students who were pursuing doctoral education in nursing and working as nurses in Türkiye. Data were collected through face-to-face interviews using an introductory information form and a semi-structured interview guide. The data were analysed using an inductive content analysis method. Findings: Four main themes emerged from the study: Challenges: Dancing at Two Weddings at the Same Time, Academic Competition and Inequalities, Glass Ceilings in Hospitals and Solution Strategies for Inequalities. Conclusion: The study highlighted the inequalities experienced by students who were simultaneously continuing their doctoral education while working as nurses in the same clinical setting. Implications for Profession and/or Patient Care: Faculty members providing doctoral education could organise meetings to help students overcome the challenges they face during their educational process. Nurse managers, on the other hand, should organise regular meetings where nurses can share the difficulties they encounter and offer suggestions for improving their units. Reporting Method: The Consolidated Criteria for Reporting Qualitative Research (COREQ) checklist was used for reporting the study. Patient Contribution: No patient or public contribution.
Linking Depression, Alcohol Use Disorder, and DYN/KOR System Genes
(Springer Science+Business Media, 2025) Özkan-Kotiloğlu, Selin
Alcohol use disorder (AUD) and depression are comorbid diseases having both individual and social outcomes. While depression is a risk factor for the development of AUD, individuals with AUD are at least twice as likely to suffer from depression. This bidirectional relationship between AUD and depression has been a trigger for investigating underlying mechanisms. These investigations associate the DYN/KOR system, which comprises the kappa opioid receptor (KOR) and its ligand dynorphin (DYN), with both addictive behaviors and negative emotional states. Recent studies have indicated that the effects of the DYN/KOR system in specific brain regions are crucial in the etiology of depression and AUD co-occurrence. This book chapter summarizes the research on DYN/KOR system genes in comorbidity of AUD and depression.
