Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(115)
- Kaya, Yunus(50)
- Ayata, Ümit(48)
- Şahin, Engin(48)
- İspirli, Hümeyra(46)
- Bayraktar, Bülent(42)
- Şenay, Volkan(41)
- Can, Zehra(39)
- Özen, Soner(37)
- Bayram, Sinan(35)
- Pat, Suat(35)
- Öztürk, Mesut(35)
- Ecem Bayram, Nesrin(34)
- Esmer, Yusuf(34)
- Battal, Fetullah(33)
- Artar, Musa(32)
- Öner, Erdal(32)
- Korkmaz, Şadan(31)
- Yilmaz, Mustafa Tahsin(31)
- Ertugrul, Mehmet(30)
- Mercan, Emin(30)
- Hasar, Ugur Cem(29)
- Kutlu, Naciye(28)
- Özdemir, Akın(27)
- Kul, Murat(26)
- Cuce, Erdem(25)
- Kamiloğlu, Aybike(25)
- Bayram, Ozkan(24)
- Sefali, Abdurrahman(24)
- Sert, Durmuş(24)
- Çolak, Murat(24)
- Ayazoglu, Rabil(22)
- Gıdık, Betül(22)
- Maden, Sedat(22)
- Ustabulut, Mete Yusuf(22)
- Uçurum, Metin(22)
- Akeren, Zahide(21)
- Dirican, Ebubekir(21)
- Kara, Yakup(21)
- Abdioglu, Murat(20)
Yayınlar
- MakaleAçık Erişim2026Scopus SJRQ1Seasonal and Meteorological Variability of Total Suspended Particulate Matter (TSP) in the Semi-Urban Atmosphere of Bayburt: An Integrated Assessment Based on OpenAir, PCA, and HYSPLIT
Paloluoglu, Cihan; Akmese Tarlan, Yasemin; Bayar, Serkan
In this study, atmospheric Total Suspended Particulate Matter (TSP) concentrations in a semi-urban area of Bayburt Province were evaluated in terms of seasonal variation, temporal behavior with meteorological factors, and air-mass transport characteristics. TSP sampling was conducted using the active sampling method over 118 days during the cold and warm-seasons sampling campaign of 2022. A high-volume air sampler (HVAS) and glass fiber filters (GFFs) were used, and TSP concentrations were determined gravimetrically. The mean TSP concentration was 29.13 +/- 29.39 & micro;g/m(3) in cold-season sampling campaign and 43.69 +/- 27.62 & micro;g/m(3) in warm-season sampling campaign. According to standard tests, the seasonal difference was nominally statistically significant (p < 0.05; Cohen's d approximate to 0.51; Cliff's delta approximate to 0.38). However, this significance did not persist after adjusting for serial autocorrelation in the AR(1) model (p = 0.151). However, this comparison should be interpreted not as validated seasonal climatological data, but as a comparison between intermittent sampling studies conducted within a single calendar year. This is because the transition period from spring to summer was not included in the sampling, and the studies were not repeated from year to year. OpenAir analyses showed that high TSP concentrations were particularly associated with easterly and southerly airflows. No clear weekday/weekend difference was observed, although episodic increases occurred on several days. The first two principal components explained 77.8% of the total variance, while the high TSP loading on PC3 indicated complementary variability. NOAA-HYSPLIT backward air-mass trajectory analyses indicated regional transport pathways in most high-TSP episodes, whereas local atmospheric stagnation was prominent in one episode. Overall, the findings show that TSP variability in semi-urban areas should be evaluated together with seasonal-meteorological variability, potential local emission effects, and regional air-mass transport.
- MakaleAçık Erişim2026Improvement of machine learning-based diabetes diagnosis via resampling techniques
Yapici, Irem Senyer; Arslan, Rukiye Uzun; Engin, Mustafa Alptekin
The objective of this study is to enhance the accuracy of diabetes diagnosis through the utilisation of machine learning techniques and resampling methods. The imbalanced nature of diabetes datasets presents a significant challenge for traditional classification algorithms, which often struggle to accurately predict results. In order to enhance the efficacy of the model, a comparative analysis was conducted to assess the performance of a range of over-sampling and under-sampling techniques, including SMOTE, ADASYN, Borderline SMOTE, SVM SMOTE, Random Under Sampler, Near Miss, One Sided Selection, Neighbourhood Cleaning Rule, Edited Nearest Neighbours, Instance Hardness Threshold, AllKNN and Tomek Links. The aforementioned techniques were then applied to the Decision Tree, Random Forest, K-Nearest Neighbours, AdaBoost, Extra Tree Classifier, and machine learning classifiers, and their performance was evaluated using the accuracy, recall, precision, F-Score, and AUC-ROC performance metrics. The SVMSMOTE resampling technique was identified as the most successful method, achieving 99.06% accuracy when used in combination with the decision tree classifier. The findings demonstrate that the incorporation of resampling techniques markedly enhances diagnostic proficiency and yields more dependable forecasts. This research makes a significant contribution to the field of medical informatics, providing a robust framework for diabetes diagnosis and offering valuable insights into the application of machine learning healthcare.
- MakaleAçık Erişim2026Experiences of Primary School Administrators in Relations with External School Stakeholders: A Phenomenal Study
Satir, Selim; Kodan, Hulya
The aim of this study is to reveal the experiences of primary school administrators regarding the functioning of social, cultural, and sports activities in their relationships with out-of-school environmental stakeholders. The study is qualitative in nature and employs a phenomenological research design. The study group consists of school administrators working in primary schools affiliated with the ... District of ... Province during the 2023-2024 academic year. The data were collected using a semi-structured interview form prepared by the researcher. Content analysis was used to analyze the data. The findings indicate that parents contribute in areas such as the provision of tools and materials; however, negative situations were also observed, such as perceiving activities as unnecessary. While the moral support of senior administrators was emphasized, serious problems such as discrimination also came to the fore. The contributions of local governments, such as transportation support, were highlighted; however, issues such as geographical discrimination driven by politics were also noted. Although political parties were found to provide material support to schools, political interference in education was emphasized as a negative experience. In relations with labor unions, material support was highlighted, whereas educational support was emphasized in relations with non-governmental organizations. It was determined that social media contributes positively to the functioning of various activities by increasing visibility, but it also creates negative effects, such as pressure to engage in constant sharing. Various recommendations were presented, including encouraging parents' active participation in social activities and developing support policies to prevent geographical and political discrimination.
- MakaleAçık Erişim2026The Effects of Digital Text Authorship on the Online Writing Skills and Affective Features Related to Writing of Students: The Case of Georgia
Önal, Aydin; Maden, Sedat
This research aims to investigate the impact of digital text authorship on bilingual middle school students' online writing skills and affective characteristics related to writing. An explanatory sequential mixed-methods design was adopted, integrating both quantitative and qualitative research approaches. The quantitative phase followed a quasi-experimental pretest-posttest control group design, whereas the qualitative phase was based on the phenomenological method. The study sample consisted of 32 bilingual eighth-grade students studying at a Turkish school in Georgia. The implementation process lasted for 20 weeks and 48 class hours including the pretest and the posttest. The quantitative results demonstrated that instruction focused on digital text authorship led to notable improvements in the online writing achievements of students within the experimental group. Furthermore, it was associated with a decline in writing-related anxiety and a rise in students' motivation to write. Qualitative analyses revealed that such instruction developed learners' digital writing competence, encouraged greater attention to linguistic accuracy and vocabulary use, streamlined the writing process, supported clearer self-expression, and contributed to a more enjoyable experience in digital writing settings. Overall, digital text authorship instruction enhanced students' online writing proficiency while simultaneously promoting positive emotional engagement with writing.
- MakaleAçık Erişim2026The Effect of Abusive Supervision on Knowledge-Hiding: The Mediating Role of Machiavellianism and the Moderating Role of Moral Identity among Healthcare Workers
Kilinç, Mehmet
This study aims to reveal the mediating role of Machiavellianism in the effect of abusive supervision on knowledge-hiding behavior and the moderating role of moral identity in the relationship between Machiavellianism and knowledge-hiding behavior. The study adopts the Conservation of Resources (COR) Theory as its theoretical framework. Quantitative data were obtained from 408 healthcare professionals using the survey method. The analyses conducted via SPSS, AMOS, and Process Macro revealed that abusive supervision significantly increases knowledge-hiding behavior (beta = .855) and Machiavellianism (beta = .820). Furthermore, Machiavellianism acts as a mediator in the relationship between abusive supervision and knowledge-hiding. A notable finding is that moral identity acts as a moderator (beta = .134), strengthening the positive effect of Machiavellianism on knowledge-hiding behavior. Considering the analysis results, some suggestions specific to healthcare institutions, healthcare workers, and future studies were presented. Theoretically, this study contributes to the Dark Triad literature by demonstrating how abusive environments trigger resource conservation through knowledge-hiding. Practically, suggestions for preventing toxic leadership and improving ethical climates in healthcare institutions are presented. Health institutions should implement a reward system for employees who demonstrate helpfulness and teamwork to decrease Machiavellian behaviors.
- MakaleAçık Erişim2026Perception of Organizational Sycophancy in Universities: A Research on Academicians
Aribas, Ayse Nihan; Esmer, Yusuf; Yüksel, Muhammet
Today, it is seen that unethical behaviors are diversifying in universities, which are accepted as value-based organizations. Sycophancy, which is an unethical behavior in universities where the hierarchical structure is evident, emerges as an important issue in academic circles. The purpose of this study is to examine the perception of organizational sycophancy in universities. In the study, 36 academicians were interviewed within the scope of qualitative research method. The answers given by the academics were processed in depth within the scope of the themes determined in accordance with the content analysis technique. The results of the study showed that sycophantic behavior is quite common in universities, that it leads to various negative consequences in the academic environment, and that there are many factors that lead to sycophantic behavior. In conclusion, organizational sycophancy is a phenomenon intertwined with academic success, cooperation and organizational culture in universities. The role of sycophantic behaviors, the attitudes of academics towards managers and the place of these attitudes in organizational structures is a topic that requires more research in academic circles. In this context, studies on sycophancy in universities provide important information for academic success and improvement of the work environment.
- MakaleAçık Erişim2026Statistical and qualitative analysis of ChatGPT and human raters in preservice teachers' writing assessment
Gülden, Bahadir; Bilge, Huzeyfe; Uysal, Pinar Kanik
Teachers spend a significant amount of time providing feedback. This study compared expert and ChatGPT assessments and feedback on written texts to determine the suitability of AI for writing skill assessments that are time-consuming to assess and provide feedback. Three experts and ChatGPT graded 14 Turkish undergraduate students' assignments using rubric that included content, language use, vocabulary, organization, and mechanics, and justified their decisions. The study involved document review and triangulation, a qualitative design. In addition, an intraclass correlation coefficient was used to assess the consistency of the ChatGPT and the experts' scores. All feedback was qualitatively analyzed to identify the strengths and weaknesses of the experts and their similarities with ChatGPT. Experts and ChatGPT had moderate to weak consistency in the writing subscales, while good reliability was found in the total score. Experts excelled in 'explanatory feedback', 'interpretation' and 'experience', while ChatGPT excelled in 'automation and continuity' and 'data processing capacity'. Experts' weaknesses included 'limited time and energy' and 'comparison bias', while ChatGPT's weaknesses were 'ambiguous expressions' and 'repetition'. The study also found that experts and ChatGPT preferred to provide constructive and supportive feedback.
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İncele - MakaleAçık Erişim2026Scopus SJRQ4MORTUARY CULT AND KÖR CEMETERY IN TURKISH CULTURE
Kabak, Turgay; Abali, Ismail
In Turkiye, the Yoruks, who have a nomadic lifestyle, migrate to a different region every season as part of their animal husbandry activities and bury their deceased relatives randomly anywhere during their migrations. This study focuses on the rare and interesting burial traditions of the Yoruks, as well as these cemeteries, which are called blind. In the article, the locations of these cemeteries were determined by field research method, the oral culture of the local people concerning these cemeteries was recorded and examined in the light of the mortuary cult that the Turks brought from the pre-Islamic period. With this examination, it has been observed that the Turks believe that the souls of dead people do not disappear and that the soul's connection with this world is not interrupted, and that they created an ancestor cult around this belief.
- MakaleYalnız künye2026Scopus SJRQ3Adult's food label awareness: scale development and validation
Açikgöz, Inci; Köktürk, Seda Nur; Yardimci, Hulya
PurposeThis study aimed to develop and validate the Food Label Awareness Scale (FLAS) to comprehensively assess adults' food label reading habits and expectations.Design/methodology/approachThe FLAS was developed based on a literature review and expert input. Initial item generation was followed by expert evaluations for content and face validity. Data were collected through structured face-to-face interviews using the preliminary version of the FLAS and a sociodemographic questionnaire. A total of 300 adults aged 20-65 years participated. Food label awareness was assessed based on the three subdimensions: (1) product packaging and ingredients, (2) nutrition and health and (3) product brand. In addition, participants' age, gender and education level were recorded. Cronbach's alpha assessed internal consistency. Reliability was supported by comparing the highest and lowest 27% of total scores. Associations between demographics and subdimension scores were tested using appropriate statistical methods.FindingsThe finalized 18-item FLAS demonstrated a three-factor structure with acceptable model fit and internal consistency. Older adults had higher awareness of packaging and ingredients. Lower education was associated with greater reliance on product brand.Research limitations/implicationsA primary limitation is the geographically restricted sample, which may limit the generalizability of the findings.Originality/valueThis study is original in developing a valid and reliable scale specifically measuring adults' awareness of food label reading - an area less explored in the literature, which mostly emphasizes general nutrition knowledge or label reading frequency.
AtıfWoS1OpenAlex1İncele - MakaleYalnız künye2026Scopus SJRQ2Health Belief Model-Based Education to Improve Water Intake and Hydration in Older Adults: A Randomized Controlled Trial
Çimen, Arzu; Akpinar, Reva Balci
PURPOSE: The current randomized controlled trial examined the effects of Health Belief Model (HBM)-based education on daily water intake, hydration biomarkers, thirst discomfort, and dry eye complaints in older adults. METHOD: Eighty community-dwelling older adults aged >= 65 years with insufficient daily water intake (<1 L/day) were screened and randomly assigned to intervention (n = 40) and control (n = 40) groups. Eligibility was determined using predefined inclusion criteria and baseline assessments. The intervention included individualized HBM-based education supported by a booklet and intake log. Data were collected using a descriptive form, Thirst Discomfort Scale, Ocular Surface Disease Index, and refractometer-based measurements of urine specific gravity and refractive index. RESULTS: Postintervention mean daily water intake significantly increased in the intervention group (mean = 749.8 [SD = 176] mL vs. 572.9 [SD = 159.3] mL; p < .001). Thirst discomfort scores decreased, and between-group differences were found in urine specific gravity and refractive index (p < .001). Although Ocular Surface Disease Index scores improved (p = .002), the clinical impact was limited. CONCLUSION: HBM-based education increased water intake and reduced thirst discomfort, supporting community-based geriatric nursing practice. Future studies should examine long-term effects and support integration of theory-based hydration education into nursing training and clinical practice.
- MakaleYalnız künye2026Scopus SJRQ2The Mediating Role of Parental Self-Efficacy in the Relationship Between Parenting Stress and Coparenting
Turhan, Fatma Seher; Yayla, Ibrahim Erdogan; Sahranç, Umit; Makas, Samet; Yildirim, Murat
Parenting stress is a critical factor influencing family dynamics, often undermining the quality of coparenting. Exploring the mechanisms through which parenting stress impacts coparenting and the potential mediating role of parental self-efficacy is essential for developing effective family-based interventions. This study aims to examine the mediating role of parental self-efficacy in the relationship between parenting stress and coparenting. The sample consisted of 240 parents (79.6% female) aged 25-58 (M = 36.5). Participants completed the Parenting Stress scale, the Berkeley Parenting Self-Efficacy Scale, and the Coparenting Scale. Parenting stress showed a significant negative association with both coparenting quality and parenting self-efficacy. Furthermore, parenting self-efficacy was found to mediate the association between parenting stress and coparenting. These results highlight the important role of parents' self-efficacy in influencing how stress influences coparenting dynamics. Strengthening parents' confidence in their parenting abilities may help buffer the harmful effects of stress and foster more cooperative, supportive coparenting practices.
- MakaleAçık Erişim2026Scopus SJRQ1Role of occupational self-efficacy and professional identity as mediators in the relationship between person-job fit and career sustainability among teachers
Demir, Mustafa; Yayla, Ibrahim Erdogan; Dombak, Kubra; Baloglu, Mustafa
Introduction Career sustainability has become increasingly important for teachers to maintain long-term professional engagement and effectiveness. This study examined the serial mediating roles of occupational self-efficacy and professional identity in the relationship between person-job fit and career sustainability among teachers.Methods The study employed a correlational survey design. A total of 390 teachers working in Turkiye participated in the study. Data were collected using the Career Sustainability Scale, the Person-Job Fit Scale, the Occupational Self-efficacy Scale, and the Perceived Professional Identity Scale. We tested the research hypotheses using a serial mediation analysis with Hayes' PROCESS Macro Model 6.Results The findings show positive and significant relationships among person-job fit, occupational self-efficacy, professional identity, and career sustainability. Although the direct effect of person-job fit on career sustainability is not statistically significant, the indirect effects via occupational self-efficacy and professional identity are significant. The serial mediation analysis further shows that person-job fit is related to teachers' occupational self-efficacy, which may, in turn, be related to their professional identity and, consequently, to career sustainability.Conclusion The findings indicate a significant indirect relationship between person-job fit and teachers' career sustainability, mediated by occupational self-efficacy and professional identity. These findings highlight the importance of holistically considering person-job fit, occupational self-efficacy, and professional identity for teacher career sustainability.
- MakaleAçık Erişim2026The Frequency-Dependent Electrical Properties and Fabrication of Diode
Sevgili, Omer; Orak, Ikram; Özel, Sultan Suleyman; Özel, Faruk
The fabrication of Al/NiO/p-Si Schottky diode (SD) was formed using a thermal evaporation system. The structural analyze of NiO using an interfacial layer was conducted using a Scanning Electron Microscope (SEM) and the SEM cross-section revealed a thickness of 0.0345 mu m for NiO interfacial layer. The capacitance-voltage (C-V) and conductance-voltage (G/omega-V) measurements of the fabricated SD were performed in the 50 kHz to 5 MHz frequency range and in the-3 V to +3 V range. The Nicollian-Brews method was employed to calculate the series resistance (Rs), while the high-low frequency capacitance method (CHF-CLF) was used to calculate the surface states (Nss). The value of the Nss was determined to be in the order of 1012 eV-1cm-2. These findings suggest that NiO is a promising alternative to conventional insulating layers in electronic devices.
- MakaleAçık Erişim2026Scopus SJRQ1Physical Activity, Technology Use, and AI Anxiety Among University Students: Associations With Academic Integrity Attitudes
Yaman, Menzure Sibel; Çakir, Zekai; Çatikkas, Fatih; Türkmen, Mutlu; Sengönül, Abdullah; Gönen, Mevlut; Öktem, Tuncay; Güzel, Sema; Yel, Kader
This study examined the associations between university students' physical activity, technology use habits, and anxiety related to artificial intelligence (AI) within an academic integrity context. Since the study did not measure verified misconduct, academic integrity was conceptualised as attitudes and self-reported behaviours. Perceptions of uncited AI use and citation practices were therefore defined as the primary integrity-related outcomes. A survey was completed by 1,018 students (TUHS, AIAS), complemented by focus group interviews with 25 participants. Quantitative analyses (t-tests, ANOVA, regression) indicated that regular physical activity was associated with lower self-reported technology dependence and lower AI anxiety. Non-active female students and younger students (18-22) recorded the highest scores. Daily internet use exceeding six hours and social media-focused engagement were associated with greater dependence and anxiety. Qualitative findings provided explanatory depth: physically active students described a more routine, focused, and self-regulated approach, while inactive students emphasised longer screen time, distraction, and stress. These patterns were consistent with the quantitative results. Overall, the findings suggest that balanced technology use, physical activity, and clear ethical awareness (e.g., citation behaviour) are associated with lower technology dependence and AI anxiety. Integrating digital literacy and ethics training with programmes that encourage physical activity may support responsible technology use and integrity-related awareness in higher education. Findings are interpreted as patterns of co-occurrence rather than causal effects, because the cross-sectional design does not allow directionality.
- MakaleYalnız künye2026Scopus SJRQ1Morin counteracts KBrO3-induced hepatotoxicity by reprogramming the HOTAIR/MEG3-miR-125b-5p/miR-214-5p axis and suppressing STAT1-associated RIPK3/MLKL necroptotic signaling
Özer, Muhammed Rasit; Özdemir, Selcuk; Küçükler, Sefa; Özkaraca, Mustafa; Kizil, Hamit Emre; Akaras, Nurhan; Mutlu, Huseyin; Kandemir, Fatih Mehmet
Potassium bromate (KBrO3; PB), an oxidative contaminant in ozonated water and bakery products, induces multi-mechanistic hepatotoxicity. Its epigenetic, necroptotic, and metabolic injury dimensions remain poorly characterized. Morin (MOR), a dietary flavonoid with established antioxidant and anti-inflammatory properties, has not previously been evaluated against PB-induced subacute hepatotoxicity. To characterize MOR's hepatoprotective mechanisms against PB-induced liver injury, focusing on the HOTAIR/MEG3-miRNA epigenetic axis, STAT1-associated RIPK3/MLKL necroptotic signaling, and Glut2/HPGD-AKT/mTOR metabolic signaling. Male Sprague-Dawley rats (n = 28) were assigned to Control, MOR (100 mg/kg), PB (62 mg/kg), and PB + MOR groups for 14 days. Outcomes included hepatobiliary biochemistry, oxidative stress markers, inflammatory mediators (ELISA), lncRNA/miRNA/mRNA profiling (RT-qPCR), immunohistochemistry (RIPK3, MLKL), double immunofluorescence (Glut2/AKT1; HPGD/mTOR), histopathology, and PCA. PB produced marked redox imbalance (up arrow MDA; down arrow SOD, CAT, GPx), NF-kappa B/NLRP3-associated inflammatory mediator elevation, epigenetic disruption (up arrow HOTAIR, down arrow MEG3; up arrow miR-125b-5p/down arrow BCL2L2; down arrow miR-214-5p/up arrow SMAD4), upregulation of STAT1-associated necroptosis-related transcripts and proteins (up arrow RIPK1/RIPK3/MLKL), and metabolic dysfunction (down arrow Glut2, down arrow HPGD; up arrow AKT1/mTOR). MOR restored redox balance, suppressed inflammation, and reprogrammed the miRNA axis while normalizing MLKL (transcript and immunohistochemistry) and AKT1 and partially attenuating RIPK3, mTOR, and STAT1. MOR confers multi-targeted hepatoprotection by restoring redox and metabolic homeostasis, attenuating NF-kappa B/NLRP3-associated inflammation, reprogramming HOTAIR/MEG3-miRNA epigenetics, and attenuating STAT1-associated RIPK3/MLKL signaling, supporting its potential as a dietary hepatoprotective candidate. PB is associated with engagement of the hepatic STAT1/RIPK3/MLKL axis and disrupts the HOTAIR/MEG3-miRNA network-both previously undocumented for this toxicant. MOR partially restores miR-214-5p/miR-466 expression while suppressing their downstream effector SMAD4, consistent with attenuation of pro-fibrotic signaling. Future work should employ multi-dose designs, in vitro mechanistic dissection, sex-stratified analyses, and clinical pharmacokinetic profiling to advance MOR toward translational application.
- MakaleAçık Erişim2026Scopus SJRQ2Exploring the role of rare earth elements doped TiO₂ based photoanodes on the performance of dye-sensitized solar cells
Caliskan, Berrak; Sayan, Enes; Igman, Erdal
This study investigates the synthesis and characterization of rare earth elements (REEs) doped TiO₂ thin films based photoanodes for use in dye-sensitized solar cells (DSSCs). For this purpose, TiO₂ films were doped with Ho³⁺, La³⁺, Er³⁺, and Yb³⁺ ions to enhance photoelectrochemical properties. Characterization techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis spectroscopy, BET surface area analysis, and X-ray photoelectron spectroscopy (XPS) were employed for the structural, morphological, and optical characterization of the synthesized photoanodes and CEs. REEs doping improved the surface morphology and optical properties of TiO₂, in particular, it increased photon absorption in the visible light range. La³⁺ and Ho³⁺ significantly improved photovoltaic performance, achieving power conversion efficiencies of 3.78% and 2.87%, respectively, compared to that of pure TiO₂. These enhancements indicate improved charge transport and light harvesting due to incorporation of REEs. Additionally, replacing the conventional platinum counter electrode (CE) with reduced graphene oxide (rGO) further enhanced performance, offering a low-cost and efficient alternative. The study highlights the combined benefits of REEs doping and rGO integration in improving DSSCs efficiency. These findings contribute to the development of more sustainable, cost-effective solar energy technologies and underline the potential of REEs-doped TiO₂ films and rGO electrodes in advancing next-generation photovoltaic devices.
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İncele - MakaleYalnız künye2026Scopus SJRQ2Comparative investigation of composite-metal lap joints with mono-adhesive and thermoplastic-reinforced mixed adhesive at elevated temperatures
Erbayrak, Engin; Eker, Beril; Colak, Murat
This study primarily examines the strength of a single lap joint having a mixed adhesive overlap consisting of a single adhesive and its thermoplastic reinforced state under varying temperatures. In the single lap joint, Titanium-Boron reinforced A356 aluminum was employed as the metal adherend, while plain woven glass fiber-reinforced epoxy (GFRE) was employed as the composite adherend. In the application of the mixed adhesive overlap, the brittle adhesives were employed in the middle section of the lap joint, while the reinforcement of the thermoplastics was employed on the adhesives at both sides of the lap joint. The single lap joints were subjected to tensile tests at 1 mm/min loading rates under room temperature and 120 °C, which is the melting point of the copolyester. In the numerical analysis, the cohesive zone model was applied in order to define the adhesives; however, elastic isotropic and orthotropic material behaviors were employed for the metal and composite adherends, respectively. Eventually, it is determined that the strength of a mixed adhesive lap joint consisting of a single adhesive and its thermoplastic reinforced state is better than a lap joint made with the mono-adhesive alone. Although literature suggests that mixed adhesive overlaps can be formed using at least two different adhesives (one ductile and one brittle), this study demonstrated that a mixed adhesive zone can be created using a single adhesive and thermoplastic reinforcement.
- MakaleAçık Erişim2026Scopus SJRQ1Policy factors affecting international sporting success in Turkey from the perspective of the SPLISS model
Ersöz, G.; Kan, M.E.; Yenilmez, M. Ince; Kantar, G.
In recent years, research on elite sport policies has mainly focused on systems in Europe, North America and Australia. This study represents the first qualitative analysis of Turkey within the framework of the SPLISS model, aiming to fill the regional gap in the literature and offer original contributions regarding the model’s cultural and structural adaptability. In this context, the study aims to analyse the policy factors affecting international sporting success in Turkey. A total of 15 individuals–five athletes, five coaches and five sports managers–aged between 21 and 51 and actively involved in sport, participated in the study. A semi-structured interview technique was used, with questions prepared from the SPLISS model perspective, and the data were analysed using content analysis. The findings reveal that financial support for sport in Turkey is inadequate, there is no merit-based system in sports governance, the limited hours and content of physical education classes in schools reduce participation in sport, career support for athletes is insufficient, talent identification projects are dysfunctional, coach education has significant shortcomings and there is a lack of collaboration between sport science researchers and practitioners. The study indicates that Turkey’s sports policies require comprehensive restructuring through reforms in several areas, including equitable financial support, merit-based governance, enhanced collaboration and coordination among sport institutions, long-term strategic planning, strengthening school-based sport, sustainable career support for athletes and fostering stronger cooperation between researchers and practitioners in sport sciences.
- MakaleAçık Erişim2026Scopus SJRQ1Development and characterization of postbiotic-enriched biodegradable films with antifungal activity for tomato storage
Kaya, Yasemin; İspirli, Hümeyra; Bozkurt, Fatih; Sağdıç, Osman; Şengül, Mustafa; Dertli, Enes
BACKGROUND: One of the major contributors to postharvest losses in tomatoes is the development of infectious mold diseases. In this study, four distinct biodegradable film formulations were developed incorporating postbiotics derived from Lactiplantibacillus plantarum Y48 and the polysaccharide alternan. The formulations included alternan, sodium alginate and glycerol (AAG), alternan, postbiotic, sodium alginate and glycerol (APAG), postbiotic, sodium alginate and glycerol (PAG), and sodium alginate and glycerol (AG) as a control. The films were characterized in terms of their physical, mechanical, thermal, and morphological properties. To assess antifungal efficacy, tomatoes artificially inoculated with Alternaria alternata were coated with each film and stored at ambient temperature for 8 days. RESULTS: The incorporation of alternan and postbiotics enhanced both the mechanical strength and thermal stability of the films. Fourier-transform infrared (FTIR) analysis confirmed the successful integration of the bioactive components into the polymer matrix. Scanning electron microscopy (SEM) imaging revealed that postbiotic addition contributed to a rougher and more rigid surface morphology, while alternan improved the structural cohesion of the films. All film formulations exhibited significant inhibitory effects against A. alternata, with the PAG formulation demonstrating the most pronounced antifungal activity. CONCLUSION: These results suggest that the PAG film, enriched with postbiotics, represents a promising biocontrol strategy for mitigating fungal spoilage in tomatoes. In conclusion, this study underscores the potential of combining postbiotics and alternan for the development of active, biodegradable edible films with antifungal functionality for postharvest preservation.
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İncele - MakaleAçık Erişim2026Scopus SJRQ1A NIKOM-Based Conceptual Framework for Spiritual Counseling Services in Turkey: Toward an Intervention Model
Çinici, Murat
Spiritual counseling has expanded rapidly in Turkiye over the past two decades. Hospitals, prisons, family guidance offices, eldercare facilities, disaster-response systems, and addiction recovery programs now host spiritual counselors as part of routine care. The methodological foundation of these services, however, remains underdeveloped. Using a conceptual review and theoretical integration approach, this article proposes—but does not empirically test—a framework that links spiritual counseling practice in Turkiye to the Intention Code Model (NIKOM), a recently formulated cognitive model that conceptualizes mental life through if–then schemas (codes), their activation, and their alignment with bodily systems. The article reviews the institutional landscape of spiritual counseling in Turkiye, situates NIKOM among adjacent cognitive models, and shows how core Islamic concepts—tawakkul, ṣabr, shukr, tawba, and dhikr—can be interpreted as functions relevant to counseling practice. A standardized five-stage intervention template is proposed and applied to six service domains. The article closes by offering five testable propositions, considering ethical limits, and articulating concrete referral criteria. The proposed framework is theoretically grounded and empirically testable; clinical efficacy is not claimed.
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