Bartın Üniversitesi Araştırma ve Akademik Performans Sistemi
DSpace@Bartın, Bartın Üniversitesi’nin bilimsel araştırma ve akademik performansını izleme, analiz etme ve raporlama süreçlerini tek çatı altında buluşturan bütünleşik bilgi sistemidir.
İndekslere Göre Dağılım
Yıllara Göre Dağılım
Türlere Göre Dağılım
Güncel Gönderiler
Öğe Türü: Yayın , Integrating artificial intelligence into education: Mediating and moderating roles of innovative thinking and AI anxiety in the relationship between AI literacy and AI-TPACK(SAGE Publications Inc., 2026) Üztemur, Servet; Avcı, Görkem; Gökalp, Ali; Değirmenci, Nail; Avcı, Görkem; Eğitim Fakültesi, Temel Eğitim BölümüThe integration of artificial intelligence (AI) into education holds significant potential to develop innovative and inclusive learning environments. This study investigated the relationship between teachers’ AI literacy and their AI-TPACK (Technological Pedagogical Content Knowledge integrated with AI). It further explored the mediating role of innovative thinking and the moderating effect of AI anxiety within this relationship. The research was conducted with 378 Turkish teachers (50.8% female). Findings demonstrated statistically significant positive relationships among AI literacy, AI-TPACK, and innovative thinking. Conversely, AI anxiety was negatively correlated with the other variables. Moreover, innovative thinking was found to significantly mediate the relationship between AI literacy and AI-TPACK. Additionally, AI anxiety moderates the AI literacy-AI-TPACK relationship; specifically, this relationship strengthens as teachers’ AI anxiety diminishes. The results underscore the critical importance of promoting innovative thinking and reducing AI anxiety to empower teachers to integrate AI effectively in education.Öğe Türü: Yayın , Exploring microencapsulated magnesium tetraborate: A promising flame-retardant additive for polyurethane-based composites(John Wiley and Sons Ltd, 2026) Çelik, Muzaffer Gencay; Tayfun, Ümit; Doğan, Mehmet; Yılmaz, Ayşen; Tayfun, Ümit; Mühendislik Mimarlık ve Tasarım Fakültesi, Temel Bilimler Bölümü BölümüBoron compounds exhibit low toxicity and diverse molecular structures, rendering them effective flame-retardant additives in polymer-based materials through various mechanisms of action. Magnesium tetraborate (MTB) and melamine formaldehyde (MF) resin-encapsulated MTB were used to enhance the flame-retardant performance of polyurethane (PU). MTB was synthesized by solid-state synthesis. MF microcapsulated MTB-MF is prepared by in situ polymerization. The synthesized MTB-based materials are characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). PU composites containing MTB and MTB-MF with varying amounts were produced by reaction of isocyanate and polyether polyol. The flame-retardant action of MTB and MTB-MF in PU was studied using the limiting oxygen index (LOI), a mass loss calorimeter (MLC), and TGA. In addition to the thermal behaviors of the PU composites, which were characterized by TGA and TGA coupled with FTIR, the morphologies of the residues were investigated using scanning electron microscopy (SEM). Results show that 5PHR-MTB containing a PU composite achieved a 24% LOI value. Besides, the peak heat release rate of 5PHR-MTB containing PU composites was reduced by 8% with respect to the PHRR of neat PU. 5PHR-MTB-MF microcapsule (the mass ratio of MTB:MF-1:3) achieved the maximal LOI value of 27%, and significantly decreased the peak heat release rate from 350 to 70 kW/m2 with respect to neat PU. The present work demonstrates that MF microcapsules, prepared with high efficiency, exhibit remarkable fire-proof performance, making them a promising multifunctional composite for use as a flame retardant in polyurethane applications.Öğe Türü: Yayın , Effects of residual solvent in polyvinyl alcohol nanofiber mats on breaking of aminoacids(Elsevier Ltd, 2026) Altay, Filiz; Alakaş, Elif; Yiğit, Rukiye; Gunasekaran, Sundaram; Ceylan, Zafer; Ceylan, Zafer; Fen Fakültesi, Moleküler Biyoloji ve Genetik BölümüThis study introduces a novel method for converting residual solvents into value-added compounds for food surface applications. It was aimed to fabricate and characterize polyvinyl alcohol (PVA) nanofiber mats, and to evaluate the influence of different residual solvents in the fibers (water, acetic acid, and ethanol) on their disrupting amino acid efficacy. The electrospinning feed solutions were characterized for conductivity, surface tension, and rheology, and the resulting nanofiber mats were examined for morphology, chemical structure, surface charge, wettability, and thermal properties. The ability of the nanofiber mats to denature proteins was assessed with high-performance liquid chromatography analysis of amino acid breakdown. The nanofiber characteristics varied with solvent type. All mats were hydrophilic with moderately negative surface charge. Nanofiber mats containing residual acetic acid caused a pronounced reduction in detectable amino acids, indicating strong distruption effects. Mats containing residual ethanol showed a moderate effect. This approach could be useful for developing active food-contact surfaces that inactivate harmful proteins (e.g., viral spike proteins), thereby improving food safety and infection control. By explicitly focusing on sustainability, the work supports the United Nations Sustainable Development Goals (UN SDG) 12 (Responsible Consumption and Production) by minimizing hazardous solvent disposal and aligns with SDG 9 (Industry, Innovation and Infrastructure) by introducing an innovative green chemistry solution. These results highlight both the novelty and environmental benefits of the residual solvent utilization strategy.Öğe Türü: Yayın , Echoes of autism in family life: Neurotypical siblings' perspectives(PUBLIC LIBRARY SCIENCE, 2026) Nazik, Ayşenur; Nazik, Ayşenur; Eğitim Fakültesi, Özel Eğitim BölümüBACKGROUND: Autism spectrum disorder impacts not only the diagnosed individual but also their family members, particularly neurotypical siblings. While international research on siblings of autistic individuals has expanded, studies in Türkiye remain scarce and predominantly quantitative. This study aimed to explore in depth the lived experiences of neurotypical siblings, focusing on family dynamics, sibling relationships, coping mechanisms, and social life. METHODS: A qualitative approach grounded in interpretative phenomenological analysis was adopted. 9 neurotypical siblings of individuals with autism participated. Data were gathered through semi-structured interviews, recorded, transcribed verbatim, and repeatedly reviewed for familiarity. Meaningful segments were coded, grouped into categories, and synthesized into overarching themes. Direct quotations were used to capture participants' emotional expressions, with all identifiers anonymized. As a qualitative study, no statistical analyses were conducted. RESULTS: The analysis revealed 4 major themes and 10 sub-themes. Sibling relationships were described as complex and fluid, marked by both closeness and distance. Communication barriers, behavioral difficulties, and disruptive or aggressive actions were highlighted as challenges that strained interactions and daily routines. Participants reported heightened family responsibilities, including caregiving and protective roles, alongside parental expectations that exceeded typical sibling duties. Despite these burdens, many siblings developed coping strategies and reported personal growth, such as enhanced empathy, patience, resilience, and responsibility. In social contexts, they encountered stigma, exclusion, and misunderstanding, yet continued to seek acceptance and support. CONCLUSIONS: The experiences of neurotypical siblings of individuals with autism embody a dual reality of strain and growth. These findings underscore the need to acknowledge siblings' support requirements and to integrate their perspectives into holistic, family-centered autism services.Öğe Türü: Yayın , Determination of the bending strength of liquid nitrogen-treated wood using two-dimensional digital image correlation(North Carolina State University, 2026) Kayahan, Kadir; Kayahan, Kadir; Bartın Meslek Yüksekokulu, Malzeme ve Malzeme İşleme Teknolojileri BölümüThe mechanical strengths of wood samples from three species were tested and compared – Uludağ fir (Abies bornmüelleriana Mattf.), oak (Quercus robur L.), and Oriental beech (Fagus orientalis L.) – after cryogenic treatment with liquid nitrogen (LN, −196 °C). Bending deformations were recorded by the ordinary method and two-dimensional digital image correlation (2D DIC) during bending tests. To apply the 2D DIC technique, a stochastic speckle pattern was sprayed onto the surface of each specimen and the displacement of these reference points was observed through non-contact during the bending tests. Deformation data obtained from the mechanical tests were compared with corresponding values determined via 2D DIC for the control samples and the samples treated with LN for 15 and 30 min, to evaluate the accuracy and reliability of the method. The results demonstrated that LN treatment influenced the mechanical behavior of the wood to varying degrees depending on the treatment duration. Furthermore, the deformation measurements obtained via 2D DIC showed excellent agreement with the results from conventional measurement methods. These findings indicate that the 2D DIC technique can be a reliable and effective non-contact measurement method for investigating the mechanical behavior of cryogenically treated wood materials. © 2026, North Carolina State University. All rights reserved.
