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- MakaleAçık Erişim2026Scopus SJRQ1Strategy instruction integrated with realistic mathematics education: A design-based research on teaching word problem solving to students with learning disabilities
Fılız, Tunahan; Öztel, Nur Çağlayan
This study used a design-based research method to explore how to design realistic mathematics education principles integrated into strategy instruction for teaching word problem solving to students with learning disabilities. The study was divided into two iterative research phases lasting 3 semesters in which the differentiation of word problem solving strategy steps for 12 third-grade students with learning disabilities was explored. During the two iterations, a combination of quantitative and qualitative data collection and analysis procedures were used to examine the impact of the designed strategies on the word problem solving achievement of students with learning disabilities and to explore students' feedback on the worksheets. After two designbased iteration phases, it was concluded that the redesigned STAR worksheets with realistic mathematics education significantly increased the word problem solving achievement of students with learning disabilities. This design, which increased students' motivation and enhanced classroom interaction, also improved students’ overall problem solving performance and discussion participation. Possible studies for the next phases of the design-based research study are also discussed.
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İncele - MakaleAçık Erişim2026Scopus SJRQ1The effect of virtual school tour on preschool children’s school adjustment
Kotaman, Hüseyin; Balci, Asli; Kilic, Zeynep Nur Aydin; Tutkun, Cansu
Starting school for the first time can be a challenging transition for young children and their families. This study combined quantitative and qualitative approaches to examine the impact of a virtual school tour on the school adjustment process of kindergarten students who are about to start school for the first time. The study included 18 kindergarten teachers and a total of 359 children, with 176 in the treatment group and 183 in the control group. Children in the treatment group viewed a 6–10 min interactive 360° virtual tour of their school before the school year began, while those in the control group did not receive any preparatory intervention. Children’s school adjustment was assessed three weeks after school entry using the School Adjustment Teacher Evaluation Scale, which measures school avoidance, school liking, cooperative participation, and self-directiveness. Quantitative data were analyzed using the Mann–Whitney U test, and qualitative data were analyzed using thematic analysis. Results showed that children in the treatment group demonstrated significantly lower school avoidance (U = 13266, p =.002, r =.164), higher school liking (U = 11221, p <.001, r =.284), and greater cooperative participation (U = 8541.5, p <.001, r =.860) than those in the control group, with no significant difference for self-directiveness. Qualitative findings supported these results, indicating that the virtual tour increased children’s familiarity with the school, reduced separation anxiety, and facilitated smoother communication between parents and teachers. Teachers reported that participating children entered school “as if it were already familiar,” adapted more quickly, and interacted more readily with peers and teachers. This study contributes to early childhood education by offering a scalable, low-cost, technology-based strategy for easing school transitions. Findings suggest that virtual school tours can be a practical tool for improving children’s early school experiences and enhancing family-school partnerships.
AtıfScopus1WoS1OpenAlex2İncele - MakaleAçık Erişim2026Scopus SJRQ1Multi-level Emergency Remote Teaching Framework for K–12 Distance Education: A Stakeholder-based Qualitative Study
Kayali, Bünyami; Karaman, Selçuk
This study develops a multi-level Emergency Remote Teaching (ERT) framework for K–12 distance education, grounded in the experiences of students, teachers, parents, and administrators during the COVID-19 pandemic. Prior ERT research has predominantly focused on single stakeholder groups or produced descriptive findings without synthesizing perspectives into a structured response model. Using a qualitative case study design, semi-structured interviews were conducted with 100 participants (25 per stakeholder group) selected through maximum variation sampling. Thematic content analysis was employed to identify convergent and divergent priorities across groups, which were subsequently mapped onto the five layers of the Holistic Analytical Layer Framework (HALF): policy, system, program, course, and activity, based on their functional relevance to each layer. Findings indicate that digital infrastructure functions as a foundational system-level prerequisite shared across all stakeholder groups, while pedagogical, psychosocial, and governance priorities diverge by role. Teachers emphasized assessment reliability and instructional continuity; students highlighted engagement and psychosocial support; parents stressed communication and guidance mechanisms; while administrators prioritized governance flexibility and decision-making autonomy. The resulting framework positions ERT not as an isolated emergency improvisation but as a coordinated, multi-layered response architecture that aligns stakeholder expectations across interconnected educational layers and supports the coordination of policy, infrastructure, programmatic planning, and instructional practices during crisis periods. The study contributes to the distance education literature by transforming multi-stakeholder perspectives into an integrated framework and extending the aspplication of HALF to emergency education contexts. For e-learning practice, the framework offers school administrators and policymakers a concrete diagnostic tool for auditing crisis-preparedness across governance, infrastructure, and instructional layers, while offering teacher educators a basis for designing professional development that addresses both technical and psychosocial readiness for remote instruction. Given its single-region, qualitative design, the framework should be understood as a context-sensitive foundation for future empirical validation rather than a universally transferable model.
- MakaleAçık Erişim2026Scopus SJRQ2Acute Music-Frequency Exposure Modulates Salivary Stress and Neurotrophic Markers in Young Adults: A Randomized Controlled Trial
Bozok, Ümmü Gülşen; Özcan, Gülbahar Böyük; Bayraktar, Bülent; Özen, Doğukan
Background: The exam period is a period full of intense stress and anxiety that deeply affects cognitive and physiological responses for university students. Listening to music has the potential to protect cellular health and alleviate the negative effects of stress by affecting individuals' mood, and cognitive functions. This study aimed to investigate the differential effects of 528 and 432 Hz music frequencies on salivary BDNF, CREB, and GRP78 levels in young adults, along with their association with cognitive performance under exam-related stress. Methods: A total of 162 healthy university students were randomly assigned to three groups: no music (control), 528 Hz instrumental music, and 432 Hz instrumental music. Participants listened to music for 20 min, after which saliva samples were collected and analyzed for brain-derived neurotrophic factor (BDNF), glucose-regulated protein 78 (GRP78) and cyclic AMP response element-binding protein (CREB) levels using ELISA. Cognitive performance was assessed using the Stroop word-color test administered by medical doctor. Results: Exposure to 528 Hz music significantly increased salivary BDNF (3.84 [2.76–4.13]) and CREB levels (1.5 [1.38–1.59]) compared to control (p < 0.05), whereas GRP78 levels were elevated in the 432 Hz group (0.51 [0.47–0.58]) (p < 0.05). No significant differences were observed between groups in Stroop test performance. Conclusion: These findings suggest that specific music frequencies elicit distinct biological responses under exam-related stress, even in the absence of immediate cognitive performance differences. Salivary neurotrophic and stress-related biomarkers may offer valuable non-invasive insights into music's neuromodulatory effects. Trial Registration: ClinicalTrials.gov identifier: AMU-EC-8522.
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İncele - MakaleAçık Erişim2025Scopus SJRQ3The Effect of Weathering on Color and Glossiness Properties of Polyurethane-Modified Water-Based Varnish Layers Applied to Thermally Treated Ash Wood
Ulay, Göksel; Akter, Mete; Çakıcıer, Nevzat; Peker, Hüseyin; Ayata, Ümit; Atılgan, Abdi; Çiftçi, Seymen
The effects of artificial weathering (168, 336, and 504 h) on the glossiness values and color parameters of varnished, polyurethane-modified ash wood were investigated. Samples included control samples without treatment and thermally treated samples under two different conditions (190 °C for 1.5 h and 212 °C for 2 h), all coated with a polyurethane-modified water-based varnish. In non-thermally treated and varnished samples, decreases in L* values were observed after weathering, while increases were noted in ho, C*, b*, and glossiness at 60° in both perpendicular and parallel directions to the fibers. After weathering, for samples thermally treated at 190 °C for 1.5 h and varnished, increases were observed in glossiness values at 20° and 60° in both directions, as well as in L*, b*, and ho values. Conversely, decreases were noted in a* and C* values. In samples thermally treated at 212 °C for 2 h and varnished, increases in a*, L*, ho, b*, and C* values were detected after weathering, whereas decreases were observed in glossiness at all angles (20° and 60°) in both directions. The ∆E* values showed a decreasing trend in non-thermally treated varnished samples after weathering, while an increase was observed in samples thermally treated at 212 °C for 2 h and varnished.
AtıfScopus1OpenAlex1İncele - MakaleAçık Erişim2026Scopus SJRQ1Optimizing Budget Allocation for Digital Health Investments Using Metaheuristic Algorithms: A Cost–Impact Analysis for Public Health Systems
Dayi, Faruk; Erdogdu, Aylin; Esmer, Yusuf; Yildiz, Ferah; Ganji, Farshad
Background: In the era of digital transformation, public health systems increasingly rely on digital technologies to improve accessibility, efficiency, and patient outcomes. However, policymakers face significant challenges in allocating limited resources across competing digital health investments characterized by uncertainty and dynamic impacts. Methods: This study introduces the Adaptive Impact–Cost Optimization Theory (AICOT), a hybrid framework integrating fuzzy logic and genetic algorithms to optimize digital health investment portfolios. The model defines the Investment Priority Score (IPS) as a function of cost, expected impact, and implementation feasibility, enabling structured evaluation under uncertainty. A fuzzy inference system with centroid-based defuzzification is used to convert qualitative assessments into quantitative scores, while optimization techniques identify optimal portfolios across different fiscal scenarios. The empirical analysis covers 15 OECD countries (2018–2024) using publicly available datasets. Sensitivity analyses assess robustness under inflation, cost shocks, and changing system priorities. Results: The findings show that blended investment strategies combining routine digital health tools with pandemic-oriented infrastructures yield the highest resilience-adjusted efficiency. Results remain stable across sensitivity scenarios, with pandemic surveillance consistently ranking as a top priority even under increased cost conditions. The model effectively captures cross-country heterogeneity, demonstrating adaptability to different levels of digital maturity. Conclusions: AICOT provides a transparent and policy-relevant decision-support framework that improves resource allocation efficiency and reduces unnecessary expenditures. These contributions support long-term financial sustainability and align with global health objectives, including Universal Health Coverage and Sustainable Development Goal 3 (Good Health and Well-being).
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2026Scopus SJRQ1Multidimensional characterization of graphite anode degradation in used lithium-ion batteries under real-life conditions
Temur, Hakan; Kara, Adem
The degradation of graphite anodes in lithium-ion batteries remains a critical barrier to extending cycle life and enabling efficient recycling. This study employs a multi-technique approach combining XRD, FTIR, SEM-EDS, ICP-MS, and XPS to investigate degradation mechanisms in graphite anodes recovered from commercial spent mobile phone batteries. While unused reference anodes show no significant degradation, spent anodes exhibit surface cracks, porous networks, heterogeneous SEI growth, and pronounced oxygen/fluorine accumulation. FTIR and XRD confirm increased LiF and Li2CO3 formation, indicating electrolyte decomposition and structural breakdown. ICP-MS reveals transition metal migration (Co, Ni, Mn) and current collector corrosion (Cu, Al), which correlate with degradation severity. Surface-sensitive XPS analysis further resolves a progressive degradation pathway: from limited SEI formation in low-degradation samples, through concurrent corrosion and metal crossover in medium-degradation samples, to extensive LiF-rich SEI accumulation in the most degraded samples. These findings are consistent with a self-accelerating chain-reaction mechanism wherein electrolyte decomposition, metal migration, and corrosion synergistically accelerate capacity fade. This study proposes a mechanistic framework for understanding heterogeneous degradation in real-world spent batteries and offers a practical, multi-technique diagnostic tool for recycling and second-life applications.
- MakaleAçık Erişim2025Scopus SJRQ2Investigation of the Structural and Corrosion Properties of Duplex Surface Treated AZ31 Magnesium Alloy
Durna, İdris; Çatar, Recep; Altun, Hikmet
The AZ31 alloy was first completely coated with pure aluminum in this study using the electric arc spray coating method. Then, considering the existing benefits of the micro-arc oxidation process (MAO), a ceramic oxide coating was formed by applying MAO to the Al-coated surface. Thus, a duplex coating was obtained on the base material. The structural properties of both the Al-coated samples and the duplex coatings obtained after the MAO process were investigated by scanning electron microscopy, energy-dispersive x-ray analysis (EDS), and x-ray diffraction devices. The electrochemical behavior of the coatings was carried out in a 3.5 wt.% NaCl solution. The samples were polarized from the potential value − 0.2 V below the corrosion potential to the maximum value of 2 V at a scanning rate of 1 mV/s, and potentiodynamic polarization curves were recorded. According to the electrochemical experiments, Al coatings and duplex coatings improved the corrosion resistance of AZ31 alloy. The corrosion current density values were 298.23 µA/cm2 for the base material, 0.415 µA/cm2 for the Al coating, and 0.014 µA/cm2 for the duplex coating, respectively. The best corrosion resistance among all samples was obtained in duplex-coated samples obtained by MAO. Due to their low corrosion resistance, magnesium alloys are restricted in many areas, especially aviation, automotive, and biomedical. Therefore, this study aimed to improve the corrosion resistance of AZ31 magnesium alloy.
- MakaleAçık Erişim2025Scopus SJRQ2Exploring preschool teachers’ perspectives on social and emotional learning in early childhood: A qualitative inquiry
Özdemir Beceren, Burcu; Baydemir, Ceren; Arı Arat, Ceren
This study aimed to explore preschool teachers’ knowledge, perceptions, and classroom practices regarding social-emotional learning in early childhood education settings. The study was designed as a qualitative research study with a phenomenological approach and focused on the lived experiences of 10 preschool teachers working with children aged 3–6 in Çanakkale. Participants were selected through purposive and maximum variation sampling. Data were collected using semi-structured interviews and demographic forms. The interview questions were developed based on a literature review and expert feedback. Data were analyzed using both inductive and deductive content analysis techniques. Themes and sub-themes were formed collaboratively by the researchers. The findings revealed that preschool teachers define SEL mainly through themes such as social-emotional skills, learning methods, and peer education. Communication and empathy were emphasized as key components of SEL. Teachers' responses focused on specific aspects such as social-emotional skills, peer education and learning methods, and reflected a limited understanding of the broader and complex nature of SEL. Play-based learning and learning through role models were the most frequently mentioned methods. Peer education was also identified as a valuable tool in promoting SEL. Teachers expressed the need for more support and training in implementing SEL effectively. Preschool teachers recognize the importance of SEL and apply a variety of strategies in their classrooms. However, their understanding and practices vary depending on their experience and training. This study highlights the need for structured SEL training programs to enhance teachers’ skills and promote more consistent and effective SEL practices in early childhood education.
AtıfScopus2OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ1Imagery and motivation in performance sports: a psychological study on weightlifters
Aksoy, Ebu Bekir Sıddık; Ceyhan, Mehmet Ali
Background: This study investigates the relationship between imagery use and motivation among weightlifters, focusing on how demographic factors like gender, education level, and national status influence these aspects. Imagery, a mental strategy used to achieve goals and motivation, an intrinsic driving force, is explored within weightlifting. Despite research linking mental strategies to performance, studies targeting weightlifters still need to be expanded. This study examines how imagery impacts this group’s motivation levels and technical performance. Methods: The study included 347 licensed athletes participating in the 2022 Turkish Individual Junior and U-23 Weightlifting Championship in Van. Data were collected online using the “Personal Information Form,” the “Sport Imagery Questionnaire,” and the “Sport Motivation Scale.” Analyses were conducted with SPSS, assessing normality through skewness and kurtosis. Parametric tests, such as t-tests and one-way ANOVA, were applied for group comparisons. At the same time, Pearson’s Correlation Coefficient was used to explore relationships between continuous variables, including age, years of experience, and competition weight category. Results: A significant positive correlation was found between imagery use and motivation, particularly in the Cognitive Imagery (CI), Motivational Specific Imagery (MSI), and Motivational General-Mastery (MGM) subdimensions. Education level significantly influenced imagery use and motivation, with higher levels linked to better mental training and increased motivation. Although gender did not significantly affect these factors, female athletes displayed more robust emotional responses, enhancing their ability to use positive emotions effectively. Age and sports experience were also positively associated with effective imagery use, indicating that experienced athletes leverage mental strategies more proficiently. Conclusions: The findings emphasize imagery as a vital tool for enhancing motivation and performance in weightlifters. Athletes with higher education levels and more experience benefit more from mental training. Future research should broaden its scope to include diverse sports and age groups, while longitudinal studies can provide deeper insights into the evolution of imagery and motivation over time.
AtıfOpenAlex2İncele - MakaleAçık Erişim2026Scopus SJRQ2Machine Learning-Based Material Thickness and Type Classification via Scattering Parameters
Engin, Mustafa Alptekin; Cakir, Mehmet
The precise determination of material type and thickness is of major significance in non-destructive testing, quality assurance, and materials science, as it influences the functionality, reliability, and performance of materials in engineering applications. This study proposes a methodology for the classification of material thickness and type through the analysis of scattering parameters within the 8–12 GHz frequency range. A database was created, encompassing real, imaginary, and dB values of reflection and transmission parameters for nine real-world materials with thicknesses ranging from 1 to 10 mm. This study addressed two main classification tasks, namely material thickness and material type. A variety of training–testing splits were employed in conjunction with 10-fold cross-validation to facilitate a comparison of classifier performance. In the material type classification, incorporating multiple thickness levels of each material enabled the model to distinguish materials with similar reflection characteristics more accurately, thereby enhancing discrimination performance. The results showed that Fine KNN consistently achieved 100% accuracy in thickness classification, while Quadratic SVM achieved 100% accuracy in material type classification, even when utilising only three thickness levels. Furthermore, the 90% training–10% testing split yielded the highest performance in thickness classification, whereas the optimal data split for material type classification differed across classifiers. Overall, this study demonstrates that the combination of scattering parameters and machine learning serves as a reliable and efficient approach for non-destructive material characterization.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2026Scopus SJRQ1Permittivity Extraction of Electrically Thin Samples by Reflection-Only Free-Space Measurements
Hasar, Ugur C.; Xue, Bing; Ozturk, Hamdullah; Kaya, Yunus; Ozturk, Gokhan
A permittivity extraction procedure is devised for electrically thin samples from reflection-only free-space measurements. Unlike previous studies, this procedure relies on sample-back metal termination measurements especially useful for thinner samples. An objective function independent of antenna transmission characteristics and reference plane position is derived. Minimum and maximum thickness and permittivity values for which our method is applicable are also examined. Free-space measurements at X-band (8.2-12.4 GHz) of a Rogers 4350B sample (approx 1.52 mm) and a FR4 sample (1.60 mm) were performed to validate our method with a dielectric constant less than 5% variation.
AtıfScopus1WoS1İncele - MakaleAçık Erişim2026Scopus SJRQ1A comprehensive parametric study of contact behavior in functionally graded bilayer systems
Öner, Erdal; Artar, Pınar Tuğçe
An extensive body of research in contact mechanics has been conducted due to its broad relevance to numerous engineering systems of practical interest. The investigation of contact behavior in deformable bodies represents a major challenge in engineering, as it plays a crucial role in the performance of structural and mechanical systems. Due to its importance, the field has received considerable attention in the literature. The present study focuses on analyzing the contact problem of a two-layered system composed of a functionally graded orthotropic layer (FGOL) and a functionally graded isotropic layer (FGIL). The layered system is fully bonded to a rigid substrate (RS), and frictional effects are neglected. No bonding is assumed between the two layers. The system is subjected to loading through a flat-ended rigid indenter (FERI), and the body forces of both layers are incorporated into the formulation. In the solution of the contact problem, the condition of constant vertical displacement (and thus its zero derivative) under the FERI is defined as the boundary condition; it is subsequently reduced to a singular integral equation through the application of Fourier integral transform techniques. This integral equation is subsequently solved numerically by applying the Gauss–Chebyshev integration formula. A comprehensive parametric study is conducted with respect to different material configurations and various dimensionless parameters, providing detailed insight into the mechanical response of the functionally graded layered system.
- MakaleAçık Erişim2026Scopus SJRQ1Secondary school students’ reading culture and ıts role in critical reading self-efficacy perceptions
Maden, Aslı; Maden, Sedat; Önal, Aydın
Background: This study examines the relationship between secondary school students' reading culture and their critical reading self-efficacy (CRSE), addressing a gap in the literature on affective factors associated with critical literacy. Understanding this relationship is crucial for promoting sustainable reading practices and fostering critical engagement among adolescents. Methods: A correlational survey design was employed with 214 secondary school students (ages 11–14) from public schools in Türkiye. Data were collected using the Critical Reading Self-Efficacy Scale (19 items, four subdimensions) and the Reading Culture Scale (30 items, multidimensional). Reliability coefficients were satisfactory (α =.80 and α =.89, respectively). After confirming normality assumptions, Pearson correlation and multiple regression analyses were conducted to examine the relationships between variables. Results: Students' mean CRSE scores were above average, while their reading culture levels were moderate. CRSE did not differ significantly by grade level or gender, whereas reading culture levels were higher among Grade 8 students compared to Grade 7. A strong positive correlation was found between CRSE and reading culture (r ≈.63, p <.001). Multiple regression analysis revealed that reading culture was significantly associated with CRSE, accounting for 39% of the variance. Among the subdimensions, personal development and reading relations and basic reading skills were significantly associated with CRSE, whereas visual reading and book selection were not (p >.05). Conclusions: The findings demonstrate a significant relationship between students' reading culture and their CRSE. These results suggest that students with higher levels of reading culture tend to report higher levels of critical reading self-efficacy. Educational programs may benefit from considering activities related to the difficulty and research dimensions of CRSE. Future studies are recommended to examine these relationships across diverse populations using longitudinal or experimental designs.
AtıfOpenAlex1İncele - MakaleYalnız künye2025Scopus SJRQ1Multi-input hybrid face presentation attack detection method based on simplified Xception and channel attention mechanism
Günay Yılmaz, Asuman; Turhal, Uğur; Nabiyev, Vasif
Currently, biometric recognition systems, especially facial recognition systems, are frequently used for person authentication. Increasing facial image and video sharing on social media makes these systems vulnerable to attacks. For this reason, there is an increasing need for sensitive face presentation attack (FPA) detection systems. In this paper, a lightweight multi-input hybrid deep convolutional neural network model was proposed for FPA detection. For this purpose, a simplified version of the widely used Xception network was developed. This model was extended via squeeze and excitation blocks to weight the data in the feature encoding channels. In addition, a simple residual network architecture with attention blocks was designed. The FPA detection performances of these models were subsequently examined in cases where the input data consisted of the raw images or cropped facial images. According to the results, a deep learning architecture with three parallel connections was proposed. The raw images, cropped facial images, and face-weighted multi-color multi-level local binary pattern features were given as inputs to the proposed model. Therefore, a multi-input hybrid FPA detection model was created using both hand-crafted features and deep features. The proposed architecture has approximately 82% fewer parameters than the original Xception network does. The experimental results on the benchmark CASIA and REPLAY-ATTACK datasets demonstrate the model's effectiveness, achieving a 1.53% equal error rate (EER) on the CASIA dataset and 0.00% EER with a 0.07% half total error rate (HTER) on the REPLAY-ATTACK dataset. These results outperform many state-of-the-art methods while requiring significantly fewer computational resources, making the approach suitable for deployment in resource-constrained environments.
AtıfScopus5WoS4OpenAlex2İncele - Kitap BölümüAçık Erişim2026Scopus SJRQ4Turkish Students’ Use of NotebookLM in an Online Digital Literacy Course
Kayali, Bünyami; Yavuz, Mehmet
This experimental study investigates the effects of using NotebookLM on students’ academic achievement and students’ assessment of NotebookLM in online digital literacy courses in higher education. It was conducted using an explanatory sequential mixed-methods design. A one-group pretest–posttest model was employed. During a five-week intervention, 33 Turkish students used NotebookLM for summarizing, concept mapping, and scenario-based problem-solving activities. Data was collected from a pretest, posttest, and interviews. Quantitative data was projected into SPSS 27 for analysis, and qualitative data was thematically analysed. Results reveal a significant difference between the pretest score (M = 66.90, SD = 10.26) and posttest score (M = 74.90, SD = 13.16) in terms of academic achievement, t(32) = −3.51, p = 0.001. The effect size was moderate (Cohen’s d = 0.68). Interview data shows that the students perceived NotebookLM as helpful for comprehension, time efficiency, motivation, and feedback, though constrained by language support and occasional technical problems. The findings suggest implications for using NotebookLM in online courses in higher education in Turkey.
- MakaleAçık Erişim2026Scopus SJRQ2Recitation Mode Is Associated With Salivary CREB and Cortisol Responses during Qur'anic Recitation
Okur, Süheyb; Topyay, Yusuf; Bayraktar, Bülent
Background: Spiritual practices such as Qur'anic recitation are commonly associated with psychological and physiological regulation; however, their salivary biomarker correlates remain insufficiently understood. This exploratory study examined whether different modes of Qur'anic recitation were associated with changes in salivary cAMP response element-binding protein (CREB), a biomarker related to plasticity-associated pathways, and cortisol, a marker of hypothalamic-pituitary-adrenal axis activity. Methods: The sample comprised three nonrandomized, criterion-defined conditions: Passive Control (n = 20; participants unable to read Qur'anic Arabic), Sight-Reading (n = 30), and Memorized Recitation (n = 30). Saliva samples were collected immediately before and after the experimental task or passive rest period. Salivary CREB and cortisol concentrations were quantified using ELISA. Post-task CREB levels were analyzed using ANCOVA with baseline CREB as a covariate. Cortisol responses were analyzed using change scores, Welch's ANOVA, and an additional robust factorial model with HC3 heteroscedasticity-consistent standard errors to evaluate exploratory Condition × Gender patterns. Results: After controlling for baseline CREB levels, experimental condition had a significant effect on post-task salivary CREB, F(2, 76) = 8.16, p < 0.001, η2p = 0.18. Memorized recitation showed higher adjusted post-task CREB levels than both sight-reading and passive control conditions. Cortisol change scores also differed significantly across conditions, Welch's F(2, 40.02) = 30.76, p < 0.001. Both active recitation conditions were associated with cortisol reduction relative to passive rest, with no significant difference between sight-reading and memorized recitation. Although descriptive data suggested a possible gender-related divergence in the memorized recitation condition, the Condition × Gender interaction did not remain statistically significant under robust estimation and was therefore interpreted as exploratory. Conclusion: These preliminary findings suggest that Qur'anic recitation modes are associated with distinct salivary biomarker patterns. Memorized recitation was linked to higher adjusted salivary CREB levels, whereas both active recitation modes were associated with cortisol attenuation relative to passive rest. Because the present design did not include active non-Qur'anic vocalization or neutral reading control conditions, the specificity of these effects to Qur'anic content cannot be determined. Future studies should include active control conditions and larger gender-stratified samples to clarify the mechanisms underlying these biomarker responses.
AtıfWoS1OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ1The effect of laughter yoga on disease acceptance, treatment adherence and comfort in hemodialysis patients: A randomized controlled study
BAL, Betül; KÖROĞLU-KABA, Nagihan; ÖZTÜRK, Havva; KURT, Yeter; ÖZSABAN, Aysel
The aim of this study was to determine the effect of laughter yoga on hemodialysis patients' disease acceptance, treatment adherence and comfort levels. This randomized controlled study was conducted with 42 patients (experimental group=21, control group=21) who were treated in the hemodialysis unit. Hemodialysis patients in the experimental group received 12 sessions of laughter yoga for four weeks, three days a week. Data were collected using Patient Information Form, Disease Acceptance Scale, End-Stage Renal Disease Adherence Questionnaire, and Hemodialysis Comfort Scale. A significant difference was found between the disease acceptance scale (t(41) = 4.39, p < 0.001, d = 1.364), end-stage renal failure adaptation scale (t(41) = 2.69, p = 0.010, d = 0.830) and hemodialysis comfort scale (t(41) = 5.58, p = 0.010, d = 1.710) of hemodialysis patients who underwent laughter yoga. In addition for the Disease Acceptance Scale, the SD of the pre-test scores was 7.51. Accordingly, the MCID thresholds were calculated as 3.75 (0.5 SD), 3.11 (1 SEM), and 6.09 (1.96 SEM). For the End-Stage Renal Disease Adherence Questionnaire, the SD was 178.79, and the MCID was calculated as 89.40 (0.5 SD), 63.47 (1 SEM), and 124.39 (1.96 SEM). For the Hemodialysis Comfort Scale, the SD was 6.43, resulting in MCID estimates of 3.21 (0.5 SD), 2.01 (1 SEM), and 3.94 (1.96 SEM). Laughter yoga practiced during hemodialysis increased acceptance of the disease, adherence to treatment, and comfort (p < 0.05). In contrast, no statistically significant difference was found in the control group (p > 0.05). Increasing hemodialysis patients' acceptance of the disease, adherence to treatment, and comfort levels ensure the successful continuation of the disease management process. The practice of laughter yoga in clinics during hemodialysis sessions is recommended to increase disease acceptance, adherence to treatment and comfort levels.
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2026Scopus SJRQ2DRAWING THE BIG PICTURE OF OPEN EDUCATION: A COMPARATIVE BIBLIOMETRIC ANALYSIS
Aksoy, Dilara Arzugul
This paper aims to provide a comprehensive overview of research on open education through bibliometric analysis. English-language articles published between 1955 and 2024 in the Scopus and Web of Science databases were selected for analysis. A variety of analytical techniques were employed, including descriptive analysis, co-authorship analysis, co-occurrence analysis, and citation analysis. The findings of this study indicated that research on open education steadily increased until 2020, after which it began to decline. The study also revealed that open education research is conducted globally, though it is predominantly concentrated in countries such as the United States and the United Kingdom. Furthermore, the majority of research in open education focuses on massive open online courses, followed by open educational resources. The International Review of Research in Open and Distributed Learning was identified as the journal with the highest number of open education articles across both databases. The research findings discussed in detail, and suggestions for future research are provided. This study offers an overview of open education research, assesses the current state of the field, and provides guidance for future investigations.
- MakaleAçık Erişim2026Scopus SJRQ3Mindfulness-Acceptance-Commitment Intervention Effects on Athletic Performance, Passion, and Psychological Well-being in Competitive Tennis Players: A Randomized Controlled Trial
Abidi, Wafa; Fall, Estelle; Chalghaf, Nasr; Ceylan, Halil İbrahim; Muntean, Raul Ioan; Dergaa, Ismail; Candar, Reyhan; Özdemir, Kübra; Çingöz, Yunus Emre; Man, Cristina Maria
While traditional psychological skills training focuses on cognitive control, mindfulness-based approaches emphasize acceptance and present-moment awareness. The Mindfulness-Acceptance-Commitment (MAC) protocol shows promise for enhancing athletic performance; however, limited research has examined its effects on passion and well-being in tennis players. Forty-four competitive male tennis players (M age = 18.1 ± 1.1 years) were randomly assigned to either a MAC intervention group (n = 22) or a passive control group (n = 22). The MAC protocol consisted of seven weekly 45-minute sessions focusing on mindfulness, acceptance, and values-driven behavior. Primary outcomes included tennis serve performance assessed by certified coaches using a standardized 16-serve protocol. Secondary outcomes included mindfulness skills (Mindful Attention Awareness Scale), subjective well-being (Positive and Negative Affect Schedule, Satisfaction with Life Scale), harmonious passion, and obsessive passion (Passion Scale). Intention-to-treat analyses with 44 participants revealed significant improvements in the MAC group compared to controls. Tennis serve performance improved significantly in the MAC group (pre: 13.18 ± 2.19 to post: 15.09 ± 2.45, t(21) = 7.54, p < .001, d = 0.87) but not in the control group (pre: 13.05 ± 2.33 to post: 12.86 ± 2.41, t(21) = 0.78, p = .442, d = 0.08), with a significant between-group difference at post-test (t(42) = 3.71, p = .001, d = 1.12). Mindfulness skills improved substantially in the MAC group (pre: 39.00 ± 4.18 to post: 52.73 ± 3.65, t(21) = 13.76, p < .001, d = 3.28) compared to controls (pre: 43.55 ± 4.75 to post: 44.32 ± 4.12, t(21) = 1.31, p = .203, d = 0.16), with a significant between-group difference (t(42) = 7.16, p < .001, d = 2.16). Harmonious passion increased significantly in the MAC group (pre: 17.27 ± 2.64 to post: 24.05 ± 4.16, t(21) = 6.15, p < .001, d = 2.57) while remaining stable in controls (pre: 17.86 ± 3.75 to post: 16.91 ± 3.61, t(21) = 1.65, p = .114, d = 0.25), with a significant between-group difference (t(42) = 6.40, p < .001, d = 1.93). Obsessive passion decreased in the MAC group (pre: 23.73 ± 3.66 to post: 16.27 ± 2.86, t(21) = 7.54, p < .001, d = 2.04) while remaining unchanged in controls (pre: 18.00 ± 3.85 to post: 18.41 ± 4.04, t(21) = 0.85, p = .406, d = 0.11), with a significant between-group difference (t(42) =-2.02, p = .050, d =-0.61). Subjective well-being improved markedly in the MAC group (pre: 9.00 ± 7.37 to post: 27.09 ± 7.47, t(21) = 8.37, p < .001, d = 2.45) compared to controls (pre: 4.54 ± 5.85 to post: 8.72 ± 6.08, t(21) = 0.65, p = .526, d = 0.71), with a significant between-group difference (t(42) = 6.85, p < .001, d = 2.07). MAC training represents an effective intervention for enhancing tennis performance, psychological well-being, and adaptive passion while reducing maladaptive passion. These findings support the clinical utility of mindfulness-based approaches in tennis psychology and warrant further investigation on a larger scale.
