Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(85)
- Serdar, Osman(72)
- Güler, Ömer(68)
- Akkurt, Nevzat(61)
- Baskonus, Haci Mehmet(54)
- Alataş, Mevlüt(53)
- Paksoy, Mehmet Yavuz(53)
- Yucesan, Melih(53)
- Bulut, Hasan(51)
- Tekin, H.O.(51)
- ALMisned, Ghada(48)
- Yildirim, Numan(48)
- Benzer, Fulya(47)
- Kocabaş, Mehmet(45)
- Yildirim, Nuran Cikcikoglu(44)
- Kutlu, Banu(41)
- Ince, Muharrem(39)
- Zengin, Gokhan(39)
- Batan, Nevzat(37)
- Utku, Anıl(35)
- Celik, Erkan(33)
- Topal, Murat(32)
- Ezer, Tülay(31)
- Tanyol, Mehtap(31)
- Can, Erkan(30)
- Sulaiman, Tukur Abdulkadir(29)
- Aslan, Naim(28)
- Özkul, İskender(28)
- Aslan, Alper(27)
- Cakilcioglu, Ugur(27)
- Erguven, Gokhan Onder(27)
- Kutluyer, Filiz(27)
- Kök, Mediha(27)
- Ates, Mehmet(26)
- Erten, Fusun(26)
- Kahraman, Gökhan(26)
- Onat, Onur(26)
- Dal, Nursel Alp(25)
- Danabas, Durali(25)
- Say, Yakup(25)
Yayınlar
- MakaleAçık Erişim2026Analysis of buildings in Tunceli - Pülümür district with the Canadian seismic screening method
Gundogdu, Yunus Emre; Polat, Berivan Yilmazer
This study, which was conducted in the P & uuml;l & uuml;m & uuml;r district of Tunceli, was carried out in an area with high seismic risk due to the region's proximity to the Bing & ouml;l-Yedisu Fault. In the study, the earthquake safety of the existing building stock was assessed using visual inspection methods. In this context, 172 buildings in the P & uuml;l & uuml;m & uuml;r district of Tunceli province were examined in detail in terms of earthquake safety using the Canadian Seismic Screening Method. In the analysis, seismic safety levels of the buildings, structural and nonstructural risks were taken into consideration and seismic priority indexes (SPI) were determined. The results of the study revealed that a large portion of buildings in the P & uuml;l & uuml;m & uuml;r district carry different levels of risk of earthquake. Specifically, the evaluated building stock was entirely constructed before the critical year of 2007 and exhibits high seismic vulnerability. This critical threshold is technically attributed to two main regional factors: the design practices predating the 2007 Turkish Earthquake Code and the absence of ready-mixed concrete technology in Tunceli province prior to that year. Furthermore, based on the method's classification, it is suggested that buildings with a Seismic Priority Index (SPI) greater than 20, which indicates High to Very Hazardous risk levels, should be prioritized for detailed assessment and retrofitting, and that local governments should develop incentive policies for these mitigation efforts.
- MakaleAçık Erişim2026Adoption of artificial intelligence-supported digital banking applications and their impact on customer loyalty
Cevher, M. F.; Önen, E.
The rationale of this paper is that AI-enabled digital banking applications enhance consumer experiences and customer relationships; however, holistic findings on the impact of these applications on customer satisfaction and loyalty, beyond their benefits and adoption, are limited. The study aims to reveal the impact of AI-powered digital banking applications on customer loyalty by examining consumer adoption, experience, and satisfaction levels. The theoretical basis is grounded in an integrated research model that correlates variables from the technology acceptance model and the expectation confirmation model. The data and research methods comprise 510 participants using AI-enabled banking applications in T & uuml;rkiye, employing a quantitative research design and an online survey technique. The data obtained were analysed using structural equation modelling (PLS-SEM). The findings indicate significant effects of perceived ease of use on perceived usefulness, as well as the relationship between perceived usefulness and confirmation on satisfaction. Furthermore, significant effects of satisfaction on continuance intention and continuance intention on customer loyalty were found. However, the direct effect of satisfaction on customer loyalty is not significant. This result suggests that satisfaction plays an indirect role in the formation of customer loyalty through continuance intention. Therefore, satisfaction and continuance intention are critical variables in strengthening customer loyalty in AI-enabled digital banking. Increasing customer satisfaction may not be sufficient for enhancing customer loyalty: banks must devise strategies to support customers' intentions to use applications regularly.
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İncele - MakaleYalnız künye2026Scopus SJRQ2From assistance to dependence: The nexus between AI dependence and workplace cognitive engagement
Uyan, Umut; Ibin, Adil
Background The increasing integration of artificial intelligence (AI) tools into workplace practices has reshaped how employees process information and perform cognitive tasks. While these systems are often associated with superior efficiency, their excessive use may entail significant cognitive costs. Objective Grounded in automation complacency perspective and the growing literature on technology addiction, this study investigates how dependence on artificial intelligence is associated with cognitive engagement in the workplace, with particular attention to the mediating role of cognitive fatigue. Methods Adopting quantitative research design, data were collected from 246 academic and administrative staff who actively use AI tools in their daily work routines. Partial Least Squares Structural Equation Modeling (PLS-SEM) was used to test the theoretical model proposed. Results The findings indicate that dependence on AI was positively associated with cognitive fatigue (beta = 0.569; t = 13.468; p = 0.000) and negatively with cognitive engagement (beta = -0.174; t = 2.503; p = 0.012). In addition, the relationship between cognitive fatigue and cognitive engagement was found to be negative and statistically significant (beta = -0.207; t = 2.773; p = 0.006). Mediation analysis further revealed that cognitive fatigue partially mediates the relationship between dependence on AI and cognitive engagement (indirect effect beta = -0.118, t = 2.724, p < .01; VAF = 40.5%). Conclusion These results suggest that higher levels of dependence on AI correspond to higher employee cognitive fatigue, which in turn relates to lower cognitive engagement at work. By empirically demonstrating the cognitive costs of AI reliance, this study contributes to the emerging literature on workplace AI and technology addiction.
- MakaleAçık Erişim2026Scopus SJRQ1Upcycling Agricultural Biomass into Functional Bio-Oils through Pyrolysis: Toward Sustainable Rejuvenation of Asphalt Binder
Furtana Yalcin, Beyza; Yilmaz, Mehmet; Yalçin, Erkut; Vural Kok, Baha
This study investigates the feasibility of utilizing bio-oils derived from agricultural waste materials (such as straw, olive pomace, and pine cones) as rejuvenating additives in reclaimed asphalt pavement (RAP) containing bituminous mixtures, offering a sustainable and environmentally friendly approach in asphalt technology. The primary objective of the study is to enhance the physical and mechanical properties of aged binders using ecofriendly alternatives, thereby developing high-performance asphalt mixtures without harming the environment. The bio-oils, produced through pyrolysis, were evaluated in comparison with two commercial rejuvenators. Key performance criteria, including Marshall stability, moisture damage resistance (TSR), indirect tensile stiffness modulus (ITSM), and fatigue life, were tested. The results indicate that natural rejuvenators not only soften the aged binder but also effectively balance the flexibility, strength, and deformation resistance of the mixture. Notably, straw oil exhibited superior performance in terms of both high stability and extended fatigue life, while olive pomace oil demonstrated remarkable success in moisture resistance. Although commercial additives were effective to a certain extent, they failed to achieve the same level of structural compatibility and sustainability provided by natural bio-oils. In this regard, the study provides strong evidence that agricultural biomass waste can serve as a value-added solution in asphalt pavements, in alignment with the principles of the circular economy. In conclusion revealed that mixtures containing 75% RAP rejuvenated with straw oil achieved 11% higher Marshall stability and up to 14.5 times longer fatigue life compared to virgin mixtures, while olive pomace oil-based mixtures reached a TSR value of 81.5%, demonstrating superior moisture resistance.
- MakaleAçık Erişim2026Mapping the Evolution of Interior Architecture and Interior Design: A VOSviewer-Based Bibliometric Analysis
Ay, Ilhami; Dal, Murat; Bekler, Sema; Bekler, Baris
This study conducts a comprehensive bibliometric analysis to explore the academic evolution of interior architecture and interior design literature from 1975 to 2024 using the Web of Science (WoS) database. A total of 3,695 articles were analyzed through VOSviewer software to visualize and interpret research trends, citation networks, co-authorship clusters, and thematic keyword occurrences. The findings indicate a steady growth in publications, particularly after 2006, coinciding with the increasing emphasis on digitalization and sustainability in design. Prominent research themes include biophilic design, adaptive reuse, and the psychological effects of color and space. The dominance of English-language publications is evident, though contributions in Turkish, French, and Spanish are also recognized. Citation analyses identify influential studies that link technical developments with social and psychological perspectives in design. Thematic clustering highlights the interdisciplinary expansion of the field, integrating insights from environmental psychology, ergonomics, and emerging digital technologies such as virtual and augmented reality. This study contributes to the literature by offering a clear roadmap for future research, promoting international collaboration, and strengthening the link between academic inquiry and design practice.
- MakaleYalnız künye2026The Historical-PoliticalJourney of Nominalism from William of Ockham to Foucault
Palanci, Cihan
Nominalism is one of the fundamental ontological-epistemological trajectories that crystallized within Medieval philosophy and played a decisive role in the constitution of modern thought. Rooted in the Ancient Greek debate on universals, this concept attained a systematic structure during the Middle Ages, becoming a horizon that defines the boundaries of modern philosophical practices. Various philosophical and political traditions have problematized established philosophical orthodoxy through the conceptual possibilities offered by nominalism. This study examines the reception of nominalism by different thinkers within the framework of critical theories, specifically focusing on Michel Foucault's historical nominalism. Furthermore, the article analyzes how nominalism, as one of the most potent theoretical foundations of anti-essentialist thought, nourishes the ontological ground of contemporary social movements and how the legacy of William of Ockham is reproduced within an oppositional habitus.
- MakaleAçık Erişim2026The paradox of discourse, representation, and integration in Germany: discursive responses of four german federal parties and turkish politicians within the axis of Kanal Avrupa TV's Bakış Açısı Program (2005-2012)
Senol, Sengul
This study analyzes integration and education policies in the German states of North Rhine-Westphalia and Lower Saxony between 2005 and 2012, within the framework of a multifaceted struggle for hegemony between state actors and politicians of Turkish origin. Using Norman Fairclough's Critical Discourse Analysis (CDA) methodology, the research examines the political discourses in Kanal Avrupa TV's Perspective program, analyzing the positioning of the immigrant subject through textual, discursive, and social practice dimensions. The analysis reveals the discursive differences among the actors representing German state rationality; in this context, a spectrum is observed ranging from the CDU's conservative paternalism to the SPD's economic rationality and the Greens' multicultural participation philosophy. On the other hand, this institutional structure creates a tense space between the German rationality, which confines the immigrant to 'individual integration performance,' and Turkey's protective discourse centered on mother tongue and diasporic identity. The harsh criticisms of Turkish politicians, particularly regarding issues such as obstacles to family reunification and Jugendamt (Youth Welfare Office) practices, demonstrate Turkey's positioning as a new and protective 'transnational actor' towards the diaspora. The study reveals that instead of being caught in this power struggle between Ankara and Berlin, third-generation immigrants are constructing their own independent discourses of 'participation' (Teilhabe) against institutional racism; therefore, what is happening is not an integration crisis, but a demand for equal citizenship.
- MakaleAçık Erişim2026Scopus SJRQ3The relationship between prenatal attachment and death anxiety in high-risk pregnancies
Kasimoglu, Necla; Bas, Nazan G.
This study aims to examine the relationship between prenatal attachment and death anxiety in high-risk pregnancies. The study, a descriptive and correlational design, was conducted with 158 women with high-risk pregnancies in eastern T & uuml;rkiye between May and December 2024. AData were collected using a socio-demographic form, the Prenatal Attachment Inventory, and the Templer Death Anxiety Scale.The mean score on the Prenatal Attachment Inventory (PAI) was 62.1 +/- 10.84, while the mean score on the Templer Death Anxiety Scale was 6.9 +/- 2.99. A positive correlation was found between PAI and Death Anxiety scores (r = .169, p < .005). Death anxiety was predicted by maternal age and the level of prenatal attachment
- MakaleAçık Erişim2026Scopus SJRQ3Investigation of Dielectric Constant and Electrical Conductivity of Poly(MA-co-MMA)/Ce(NO3)3 Composites by Response Surface Methodology for Advanced Dielectric Applications
Torgut, Gulben; Incesu, Rabia
In this study, poly(maleic anhydride-co-methyl methacrylate) [poly(MA-co-MMA)] copolymer and their Ce(NO3)3-filled composites were synthesized and systematically investigated. The copolymer was prepared via free radical polymerization using azobisisobutyronitrile (AIBN) as the initiator in 1,4-dioxane medium. Poly(MA-co-MMA)/Ce(NO3)3 composites were fabricated through a solution mixing technique in accordance with the response surface methodology (RSM) design. Fourier transform infrared spectroscopy (FTIR) results indicated that no significant chemical interaction occurred between the polymer molecule and Ce(NO3)3 particles. Scanning electron microscopy (SEM) images revealed a relatively uniform dispersion of Ce(NO3)3 particles within the polymer, resulting in a rougher surface with increasing filler content and that aggregation occurs at 20 wt%. The presence of Ce(NO3)3 particles in the polymer was confirmed by x-ray diffraction (XRD) analysis. The effects of frequency, applied voltage, and Ce(NO3)3 content on dielectric constant (epsilon) and electrical conductivity (sigma) were optimized using RSM, and the significance of these parameters was evaluated by analysis of variance (ANOVA). An increase in Ce(NO3)3 content significantly enhanced the electrical conductivity, while the applied voltage exhibited no statistically significant effect on dielectric properties. ANOVA results identified Ce(NO3)3 content as the most influential parameter in the developed model.
- MakaleAçık Erişim2026Predicting middle school students' academic achievement in mathematics with aAnew hybrid approach
Dogan, Gurkan; Demiralp, Demet
The academic achievement of middle school students is one of the critical steps in their educational journey that affects their future academic and career prospects. During this transition period, students are faced with a variety of challenges related to their families, schools, and the individual themselves. Research shows that academic performance during these formative years is critical for future educational success and overall life success. Therefore, addressing students' academic achievement, which depends on various factors during this period, is of particular importance for both institutional and individual planning and orientation in the future. In this study, a new hybrid approach based on artificial neural networks that enables automatic analysis of data on family, school, and individual factors affecting middle school students' academic achievement in mathematics is proposed. A publicly available student performance dataset was used for training and testing the proposed hybrid approach and other models. This dataset consists of data such as mathematics grades, family information, residential information, and health status information for 395 students enrolled in two public schools in the Alentejo region of Portugal. The proposed approach achieved an R2 score of 88.6% in experimental studies with this data set, providing approximately 3% higher accuracy than its closest competitor among other methods in the literature.
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İncele - MakaleYalnız künye2026The Voice of European Turks: The Establishment, Broadcasting Practices, and Cultural Role of Germany-Licensed Kanal Avrupa Television
Senol, Sengul
Kanal Avrupa Television is a Germany-licensed Turkish-language media organization that has broadcast continuously since 2004. This study examines its role in supporting cultural memory, identity negotiation, Turkish-language continuity, social participation, and connections with T & uuml;rkiye among Turkish communities in Germany and other parts of Europe. Using a qualitative single-case study and document-analysis approach, the research evaluates the channel's institutional development, broadcasting mission, program content, audience orientation, and digital-platform activities. The findings suggest that Kanal Avrupa Television functions as a diaspora media institution and communicative public sphere in which the identity of the European Turk is articulated and negotiated. Its programs provide opportunities for cultural representation, inter-generational transmission of language and traditions, discussion of social and political concerns, and maintenance of transnational connections. The analysis also identifies economic sustainability, digital transformation, generational change, and editorial independence as important challenges affecting the channel's future. By examining these institutional and cultural dimensions, the study contributes to scholarship on diaspora media, migration, cultural identity, and collective memory.
- MakaleAçık Erişim2026EDUCATIONAL, SOCIAL, AND PSYCHOLOGICAL IMPLICATIONS OF THE ABOLITION OF PHYSICAL EDUCATION CLASSES IN 12TH GRADE SCIENCE HIGH SCHOOLS: AN EXAMINATION BASED ON THE VIEWS OF PHYSICAL EDUCATION TEACHERS
Kadi, Mustafa Nurullah; Cücü, Behnam; Yildirak, Ahmethan; Yilmaz, Emrullah; Erdogan, Ramazan; Öztürk, Mehmet Ali
- MakaleYalnız künye2026Scopus SJRQ2An integrated process for rare earth elements recovery and silica production from Turkish bauxite-related ores
Uysal, Turan; Erüst, Ceren; Erdemoglu, Murat; Sis, Hikmet
The evaluation of bauxite-associated shales as a secondary source of rare earth elements (REEs) is strategically important for securing a sustainable supply of critical raw materials used in advanced technologies. In this study, shale ore associated with bauxite, unsuitable for aluminium production due to its high silica content, was investigated as a potential resource for valuable REEs. The effect of thermal activation on REE recovery was examined, and the potential use of the leach residue as a silica source was assessed. Based on acid leaching results, the optimum calcination temperature was identified as 700 degrees C. Under these conditions, high REE recoveries were achieved: 92.9% La, 89.9% Ce, 89.0% Pr, 88.7% Nd, and 73.0% Sm. After leaching, the residue was enriched in alumina and silica. To improve silica purity and recover remaining REEs and Al, a second-stage leaching process was applied. This resulted in a byproduct containing 55% SiO2 with a specific surface area of 48 m2 g-1, indicating its potential as a silica source. The results demonstrate that bauxite-associated shale can be sustainably valorised through intensive milling, calcination, and acid leaching, enabling efficient REE recovery and the production of a silica-rich byproduct. L'& eacute;valuation de schistes associ & eacute;s & agrave; la bauxite comme source secondaire d'& eacute;l & eacute;ments de terres rares (ETR) est strat & eacute;giquement importante pour garantir un approvisionnement durable en mati & egrave;res premi & egrave;res critiques utilis & eacute;es dans les technologies avanc & eacute;es. Dans cette & eacute;tude, on a examin & eacute; le minerai de schiste associ & eacute; & agrave; la bauxite, inappropri & eacute; & agrave; la production d'aluminium en raison de sa teneur & eacute;lev & eacute;e en silice, comme ressource potentielle d'ETR pr & eacute;cieux. On a examin & eacute; l'influence de l'activation thermique sur la r & eacute;cup & eacute;ration des ETR et l'on a & eacute;valu & eacute; l'utilisation potentielle du r & eacute;sidu de lixiviation comme source de silice. D'apr & egrave;s les r & eacute;sultats de la lixiviation acide, on a identifi & eacute; la temp & eacute;rature optimale de calcination & agrave; 700 degrees C. Dans ces conditions, on a obtenu des r & eacute;cup & eacute;rations d'ETR & eacute;lev & eacute;es: 92.9% de La, 89.9% de Ce, 89.0% de Pr, 88.7% de Nd et 73.0% de Sm. Apr & egrave;s la lixiviation, le r & eacute;sidu & eacute;tait enrichi en alumine et en silice. Afin d'am & eacute;liorer la puret & eacute; de la silice et de r & eacute;cup & eacute;rer les ETR et l'Al restants, on a appliqu & eacute; une deuxi & egrave;me & eacute;tape de lixiviation. Cela a engendr & eacute; un sous-produit contenant 55% de SiO2 et pr & eacute;sentant une surface sp & eacute;cifique de 48 m2/g, indiquant son potentiel en tant que source de silice. Les r & eacute;sultats d & eacute;montrent que le schiste associ & eacute; & agrave; la bauxite peut & ecirc;tre valoris & eacute; de mani & egrave;re durable par broyage intensif, calcination et lixiviation acide, permettant une r & eacute;cup & eacute;ration efficace des ETR et la production d'un sous-produit riche en silice.
- MakaleAçık Erişim2026A Consensus-Edge Initializer for Multi-start 2-opt on the Symmetric Euclidean Travelling Salesman Problem
Saygili, Ahmet Caglar; Kazan, Halim
We study a one-shot consensus-based initializer for multi-start 2-opt on symmetric Euclidean Travelling Salesman Problem (TSP) instances. Given the M local minima from best-of-M 2-opt, we count undirected edge frequencies, greedily assemble a tour from the most frequent edges with a length-biased tie-break, and run a single additional 2-opt descent from this seed. The local search operator is unchanged; the consensus stage reuses existingtours and adds only a small overhead beyond the M descents, and we characterise this overhead analytically while focusing evaluation on tour length improvements. On synthetic Euclidean instances from three generators, we evaluate performance over a grid of problem sizes n and restart budgets M. The consensus + 2-opt pipeline improves best-of-M 2-opt by roughly 3-6% in median tour length with high win rates for n >= 500 and moderate M, while for small n and large M the baseline saturates and gains shrink to zero or slightly negative values. Thus, even a single aggregation step over 2-opt local minima yields a simple, reproducible seed that is beneficial in the practically relevant regime of moderate budgets and larger instances and approximately neutral elsewhere.
- MakaleAçık Erişim2026Scopus SJRQ3Ten-Year Trends in Kidney Transplantation by Donor Type, Age, Dialysis, and Sex/Gender Inequality in Turkiye
Ordin, Yaprak Sarigol; Kankaya, Eda Ayten; Celik, Buket
Introduction: Gender disparity remains a global issue in access to renal replacement therapy and kidney transplantation among patients with end-stage kidney disease. Aim: This study examined trends in donor type, recipient age, and dialysis modality in kidney transplantation in T & uuml;rkiye from 2013 to 2022. A secondary aim was to explore gender disparities in kidney transplantation and treatment modalities for end-stage kidney disease using registry data. Methods: This descriptive and cross-sectional study analyzed the distribution and trends of kidney transplants in T & uuml;rkiye between 2013 and 2022. The data were obtained from the publicly accessible Registry of Nephrology, Dialysis, and Transplantation reports in Turkiye. Per million population increase/decrease rate, chi(2) linear trend, and chi(2) R by C were used. Results: Overtime, transplants from living donors increased, while deceased donor transplants decreased. The highest rates of living donor transplants were in 2022, 2021, and 2019. Transplants in high-risk age groups increased significantly. There were differences in donor type among patients receiving hemodialysis, peritoneal dialysis, or preemptive transplantation (p < .001). Preemptive transplants showed the most significant increase, especially from living donors in 2022. Between 2013 and 2022, kidney transplantation increased by 24.67% in men and 19.94% in women. Female transplant rates were lowest in 2016, 2020, and 2021, indicating a persistent gender gap. There was no significant gender difference in the incidence of hemodialysis or peritoneal dialysis. Conclusion: Living donor transplants, especially preemptive ones, increased markedly over the past decade. Gender disparities persist, and efforts should focus on improving access for women and promoting deceased donor programs to ensure equity.
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İncele - MakaleAçık Erişim2026Piezoelectric energy harvesters in bridge structures: Evaluation of optimal placement and energy harvesting
Sen, Bugra; Polat, Alper; Kapicioglu, Abdullah; Esen, Hikmet
In the present study, energy is harvested from vibrations in bridge structures caused by vehicle passages using piezoelectric energy harvesters (PEHs). In order to maximize the energy harvested, it was aimed to specify the optimal locations of PEHs. In the study, energy harvesting from vibrations in bridge structures was achieved using three different vehicle loads and three different piezoelectric materials. The project of the Ku & scedil;saray & imath;-2 bridge, located in Ku & scedil;saray & imath; village in Baskil, Elaz & imath;& gbreve;, was modelled in the ANSYS program using real measurements. The bridge was analyzed for modal, harmonic, and piezoelectric energy harvesting, respectively. The type with the highest energy production was determined using three different piezoelectric materials (PZT-4, PZT-5A, and PZT-8) for a total of 9 PEHs, and a total of 13 different analyses were performed under three different vehicle loads (60 kN, 90 kN, and 120 kN) to compare the results. The maximum total power obtained from all nine PEHs was 1.484 & micro;W under the 120 kN load with PZT-5A. The maximum power obtained from a single PEH (PEH-1) was 0.49 & micro;W. This power achieved will be adequate for wireless sensor systems used for monitoring the structural health of bridges, and considering that energy harvesting through vibration is independent of meteorological elements, unlike energy sources such as solar and wind, the environmental damage caused by waste batteries in existing systems will be prevented with the dissemination of these systems. With the development of these systems, the energy needs of services such as lighting and traffic signs can be supplied. The results provide an important foundation for the development of vibration-based energy harvesting systems in bridge structures. Thus, the study stands out as an innovative step toward sustainable energy generation in structural engineering.
- MakaleYayıncıda açık erişim2026Scopus SJRQ1Effects of 8-week plyometric training program on balance, reaction time, and attention on elite adolescent female taekwondo athletes
Genç, Harun; Türkmen, Mustafa; Tekin, Irem; Cigerci, Ali Erdem; Gürses, Veli Volkan; Kizar, Oktay; Ökmen, Mehmet Serif; Polatcan, Ismail; Gündogdu, Serhat Dogu
Introduction: Taekwondo is a complex combat sport requiring high levels of strength, balance, reaction time, attention, agility, and endurance for effective performance under rapid offensive and defensive conditions. This study aimed to investigate the effects of an 8-week plyometric training program on static balance (SB), dynamic balance (DB), reaction time (RT), and attention (AT) in adolescent female taekwondo athletes. Methods: Twenty female athletes (age: 14.85 +/- 1.53 years; height: 162.27 +/- 7.12 cm; body mass: 56.69 +/- 6.45 kg) voluntarily participated in the study at Mardin Halit Demir Martial Arts Club. Participants were randomly assigned to either an experimental group (EG, n = 10) or a control group (CG, n = 10). The EG performed plyometric training twice weekly for 8 weeks in addition to regular taekwondo training, while the CG continued only taekwondo training. Static balance was defined as the primary outcome, whereas dynamic balance, reaction time, and attention were considered secondary outcomes. A 2 & times; 2 repeated-measures analysis of variance (group & times; time) was used to examine intervention effects. Results: Significant group & times; time interactions were observed for static balance and dynamic balance (p < 0.05), favoring the experimental group. However, no significant group & times; time interactions were found for reaction time or attention (p > 0.05). Discussion: These findings suggest that plyometric training may effectively improve balance performance in adolescent female taekwondo athletes, particularly static and dynamic balance. However, no significant effects were observed for reaction time or attention. Further studies with larger sample sizes are needed to clarify the potential effects of plyometric training on cognitive performance.
- MakaleYalnız künye2026Examining the Effect of Digital Sports Games on the Motivation Levels of Secondary School Students Regarding Participation in Sports Activities
Bozkurt, Eyup; Toker, Oguzhan; Aldim, Umit Ferit; Akgün, Tarik Fikret; Tümen, Tugba; Erdogan, Ramazan
The aim of this research is to examinethe effect of digital sports games on themotivation levels of secondary school students in participating in sports activities.The research was conducted using a correlational survey model, one of the quantitative research methods, and the researchgroup consisted of 141 volunteer students(80 male, 61 female) studying at the secondary school level in different provincesduring the 2024-2025 academic year. Apersonal information form and the DigitalSports Games Motivation Scale, developedby Kim and Ross (2006) and expanded byCianfrone et al. (2011), were used as datacollection tools. The SPSS software package was used for data analysis, and significance was accepted as p < 0.05. According to the research findings, it was determined that the students' motivation levels for digital sports games were generallyat a moderate level. The sub-dimensionswith the highest motivation were identified as team commitment, entertainment,and socialization. No statistically significant difference was found in digital sportsgame motivation levels according to gender, height, body weight, place of residence, income level, and parental educa-tion level variables (p > 0.05). Regarding the weekly digital game playing timevariable, a significant difference was foundonly in the entertainment sub-dimension;students who played digital sports gamesfor 5-8 hours a week had higher entertainment levels than the other groups (p <0.05). In conclusion, it can be said thatdigital sports games play a motivating rolefor secondary school students, especially inthe dimensions of entertainment and teamcommitment, but this effect is related togame time and the quality of interactionwith the game rather than demographicvariables. It is suggested that digital sportsgames should be considered not as an alter-native to physical sports activities, but as asupportive and complementary element tointerest in sports.
- MakaleAçık Erişim2026Scopus SJRQ1Ellagic Acid Mitigates Lead (Pb)-Induced Toxicity in Cyprinus carpio: A Multi-Biomarker Assessment of Hematological, Immunological, and Oxidative Stress Responses Supported by Molecular Docking
Eroglu, Mucahit; Cakmak, Mehmet Nuri; Pala, Aysegul; Uslu, Harun; Yonar, Serpil Mise; Ispir, Unal; Orhan, Cemal; Yonar, Muhammet Enis
Lead (Pb) is a widespread environmental pollutant that induces systemic toxicity in aquatic organisms primarily through oxidative stress, hematological disruption, and immune dysfunction. This study investigated the protective effects of ellagic acid (EA) against Pb-induced toxicity in common carp (Cyprinus carpio) using a multi-biomarker approach and molecular docking. Fish were assigned to six experimental groups: control, EA-treated, Pb-I, Pb-I + EA, Pb-II, and Pb-II + EA. Fish in the Pb-I and Pb-II groups were exposed to 2.5 and 5 mg/L Pb, respectively, while EA was administered via diet at 100 mg/kg for 14 days. At the end of the exposure period, hematological indices, innate immune parameters, and oxidative stress biomarkers were assessed in blood, liver, kidney, and gill tissues. Pb exposure caused marked hematological impairment, suppressed immune responses, increased malondialdehyde levels, and disrupted antioxidant defense by reducing SOD, CAT, GSH-Px, and GSH levels while increasing GST activity. In contrast, dietary EA supplementation significantly mitigated Pb-induced alterations, improved hematological and immunological responses, reduced lipid peroxidation, restored antioxidant capacity, and normalized GST activity to control levels. Molecular docking analyses further showed that EA interacts with hemoglobin and immunoglobulin M, supporting its potential role in preserving oxygen transport and immune functions under Pb-induced stress. Overall, the findings demonstrate that Pb-induced toxicity involves coordinated disruption of redox homeostasis and immune function, whereas EA exerts a multi-target protective effect through biochemical and molecular mechanisms. This study provides mechanistic insight into chemical-biological interactions and supports the potential application of natural bioactive compounds in mitigating heavy metal-induced toxicity.
- MakaleAçık Erişim2026Scopus SJRQ2A New Metacognitive Confidence Calculation Approach Based on Large Language Models for Natural Language Explanations
Yilmazer Gundem, Merve; Sahin, Simay; Karakose, Mehmet
Traditional methods used to measure metacognitive confidence rely on superficial features such as word count and ambiguity and therefore fail to adequately reflect the level of metacognitive confidence in statements. In this study, in addition to traditional text-based confidence measures, we used a Large Language Model (LLM) to directly analyze confidence and its ratio in statements. LLM-based confidence scores were calculated on statements from the e-SNLI and CoS-E open-source datasets, and the prediction performance obtained with traditional features was compared. The results indicate that traditional surface-level text features explain the variance in LLM-generated confidence scores to a limited extent, and that LLM-based scores are significantly correlated with independent researcher evaluations. This study contributes to the literature by offering a scalable and reproducible analytical framework for measuring metacognitive confidence. It is believed that the findings can be directly applied, particularly in applications where trust is critical, such as automated software test scenario generation, decision support systems, and risk management. The use of LLMs offers a framework for the LLM-based analysis of potential metacognitive confidence signals in natural language explanations by examining the sense of confidence and certainty with which statements are presented, rather than their factual accuracy.