Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(46)
- Kulakaç, Nurşen(21)
- Aydin, Aydanur(16)
- Demir, Selim(16)
- Tuncer, Metin(16)
- Topal, Fevzi(15)
- Turan, Ibrahim(15)
- Yilmaz, Coskun(14)
- Bayrakdaroglu, Serdar(12)
- Koçak, Tevfik(11)
- Aliyazicioglu, Yuksel(10)
- Gulcin, Ilhami(10)
- Ozturk, Samet(10)
- Topal, Meryem(10)
- Ceylan, Halil Ibrahim(9)
- Ceylan, Levent(9)
- Kilinc, Kagan(9)
- Mentese, Ahmet(9)
- Ozdes, Duygu(9)
- Tuncer, Gülsüm Zekiye(9)
- Duran, Celal(8)
- Emirza, Elif Güzide(8)
- Yaman, Serap Ozer(8)
- Yılmaz, Coşkun(8)
- Baltacı, Cemalettin(7)
- Demirağ, Hatice(7)
- Hintistan, Sevilay(7)
- Kaya, Feridun(7)
- Küçük, Murat(7)
- Ürkek, Bayram(7)
- Şengül, Mustafa(7)
- Bayrakdaroğlu, Serdar(6)
- Deger, Orhan(6)
- Genc, Berna(6)
- Gül, Abdulkadir(6)
- Gülçin, Ilhami(6)
- Günen, Mehmet Akif(6)
- Gürsoy, Ayla(6)
- Kurnaz, Muammer(6)
- Supuran, Claudiu T.(6)
Yayınlar
- MakaleAçık Erişim2026Scopus SJRQ1Comparison of plyometric repeated sprint and plyometric aerobic training on physical performance in youth soccer players
Selmi, Mohamed Amin; Hammami, Raouf; Ceylan, Halil Ibrahim; Duncan, Michael; Sassi, Radhouane Haj; Morgans, Ryland; Bayrakdaroglu, Serdar; Bragazzi, Nicola Luigi
High-intensity interval training (HIIT) and repeated-sprint sets (RSS) are established conditioning methods in soccer, yet their integration with plyometric training among highly trained youth soccer players remains underexplored. This study investigated the effects of an 8-week program combining plyometric training with either RSS (PLYO-RSS) or HIIT (PLYO-HIIT) on physical fitness in young soccer players. Twenty-nine male players (14-15 years) were randomly assigned to PLYO-RSS (n = 14) or PLYO-HIIT (n = 15). Both interventions lasted 20 minutes per session and replaced part of regular soccer training. Physical fitness assessments included countermovement jump (CMJ), 15-s repeated vertical jumps (15''RJ), five-jump test (5JT), 10 m and 30 m sprint, maximal aerobic speed (MAS), VO2max, and repeated sprint performance (total sprint time, best sprint, fatigue index). Physiological markers (lactate, rating of perceived exertion, and HRmax) were also monitored. Significant improvements over time were observed in muscle power, sprint speed, aerobic capacity, and repeated-sprint ability (p <= 0.001; eta & sup2;p = 0.339-0.489). However, no main effects or group & times; time interaction effects were observed, indicating no evidence of differential responses between the two training modes. In conclusion, integrating plyometric training with either RSS or HIIT effectively enhances physical fitness in highly trained youth soccer players, offering flexible options for training prescription.
- MakaleAçık Erişim2026Scopus SJRQ1Chemical profiling, biological evaluation, and QSAR-informed metabolite prioritization of Hypericum ekerii: a first report on antioxidant, enzyme inhibitory, and cytotoxic activities
Zengin, Gokhan; Yagi, Sakina; Cetiz, Mehmet Veysi; Uba, Abdullahi Ibrahim; Nikolic, Filip; Gasic, Uros; Balos, Mehmet Maruf; Erharman, Ahmet; Dogan, Nurettin; Koyuncu, Ismail
Hypericum ekerii Y & uuml;ce and Ayta & ccedil;, first described in 2017, remains poorly characterized in terms of its phytochemical composition and biological properties. This study investigated aerial-part extracts of H. ekerii prepared with ethyl acetate, acetone, 70% acetone-water, and water. The hydroacetone extract showed the highest total phenolic and flavonoid contents. LC/MS analysis enabled the annotation of 99 constituents, including phenolic acids, flavonoids, xanthones, anthraquinones, and acylphloroglucinols. The hydroacetone extract exhibited the strongest radical-scavenging and reducing activities, whereas acetone and ethyl acetate extracts showed the highest metal-chelating capacity. In enzyme assays, hydroacetone was the most active extract against acetylcholinesterase, tyrosinase, and hCA II, while ethyl acetate showed greater inhibition of butyrylcholinesterase and hCA I. The aqueous extract was the most active against alpha-glucosidase, and hydroacetone and ethyl acetate showed comparable alpha-amylase inhibition. Cytotoxicity remained limited overall; the lowest IC50 value was observed for the ethyl acetate extract against HCT-116 cells (95.09 & micro;g mL-1), with weak selectivity (SI = 1.2). A QSAR-informed prioritization framework identified myricetin as the leading cross-layer candidate, p-coumaric acid as a target-specific priority metabolite, and ellagic acid, quercetin, and caffeic acid as antioxidant-priority candidates. Molecular docking supported favorable binding profiles for selected metabolites, while molecular dynamics simulations were used to assess the stability of representative complexes. Overall, H. ekerii appears to be a chemically diverse species with notable antioxidant and enzyme-inhibitory potential, providing a focused basis for future compound-level validation.
- MakaleAçık Erişim2026Scopus SJRQ2Long-term decline of Chernobyl-derived 137Cs in mosses and lichens from the Eastern Black Sea region of Türkiye
Çevik, Ugur; Çelik, Necati; Uzun, Kubra K.; Çelik, Ahmet; Koz, Bahadir; Özen, Songul A.; Yesilkanat, Cafer M.; Hacisalihoglu, Aylin; Özkalayci, Fatih; Kaya, Selim
This study presents the third consecutive assessment of 13 Cs activity concentrations in the same 50 moss (7 species) and lichen (2 species) sampling points in Ordu province, T & uuml;rkiye, one of the most heavily contaminated areas following the Chernobyl accident. Samples were collected from exactly the same locations used in the 1997 and 2007 studies and analyzed by high-resolution gamma spectrometry. In 2025, detectable 13 Cs was found in 14 of 30 moss sites (47%) and 3 of 20 lichen sites (15%). For samples below the minimum detectable activity (MDA), a value of MDA/2 (0.93 Bq kg-1) was substituted for lichens, while moss samples below the MDA were excluded from regression. The ecological half-life (Teco) for the 2007-2025 period was 4.38 +/- 1.05 years for mosses and 4.18 +/- 0.61 years for lichens. For mosses, this is nearly identical to the 1997-2007 mean (4.4 years), while for lichens it decreased from 5.6 to 4.18 years, suggesting a slight acceleration in environmental removal. All Teco values remain far shorter than the physical half-life of 13 Cs (30 years), confirming that environmental removal processes dominate over radioactive decay. Residual 13 Cs is concentrated in higher-altitude areas, reflecting the original deposition pattern and slower removal in cooler, more humid microenvironments. Nearly 39 years after the accident, the radiological risk posed by residual trace levels is negligible. This 28-year dataset provides one of the longest continuous records of 13 Cs in epiphytic bioindicators and serves as a valuable baseline for future contamination events.
- MakaleAçık Erişim2026Scopus SJRQ1YOLOv8 computer vision for automated offside detection in professional football validated through supervised learning
Abdel-Fattah, Abdul-Rahman; Belhaouari, Samir Brahim; Ceylan, Halil Ibrahim; Bayrakdaroglu, Serdar; Muntean, Raul Ioan; Dhahbi, Wissem; Dergaa, Ismail; Omri, Abdelfatteh El
Offside calls are integral to maintaining fairness and competitive integrity in football, yet current officiating processes are constrained by limitations in accuracy despite technological advancements. This investigation developed and validated an automated offside detection system using YOLOv8 object detection architecture to address documented limitations of Video Assistant Referee (VAR) systems in offside decision accuracy. Supervised learning validation employed 400 annotated instances from professional match footage. The YOLOv8 medium variant was configured for four-class detection, with a focus on extreme player positions, reducing computational complexity by approximately 70% relative to comprehensive player tracking while accepting accuracy trade-offs in marginal scenarios. The system was optimized for computational efficiency through highly accurate tracking of player positions. Data were partitioned into 40% (n = 160) for training and 60% (n = 240) for testing, with 5-fold cross-validation. The automated system achieved robust performance metrics across 240 test instances: overall accuracy of 83.0%, precision of 85.0%, recall of 87.0%, and F1-score of 86.0%. Confusion matrix analysis revealed true positives (n = 130), true negatives (n = 70), false positives (n = 22), and false negatives (n = 18). Individual case analysis demonstrated 80% agreement with ground truth classifications. System performance significantly exceeded the random classification baseline (p < 0.001). The strategic extreme player tracking approach achieved substantial computational efficiency while maintaining decision accuracy across diverse match scenarios. A YOLOv8-based offside detection system demonstrates proof-of-concept feasibility for decision-support applications in football officiating. Performance (83% accuracy, 95% CI: 79-87%) on 240 test instances remains below professional benchmarks (> 93%), with single-camera constraints and limited dataset size restricting generalizability to proof-of-concept validation rather than operational deployment.
- MakaleAçık Erişim2026Scopus SJRQ1Short-Term Inspiratory Muscle Training Enhances Functional and Metabolic Health in Older Adults
Konca, Erkan; Yilmaz, Coskun; Bayrakdaroglu, Serdar; Ceylan, Halil Ibrahim; Arslan, Ayla; Ocak, Hakan; Karakulak, Izzet; Sari, Rifat; Uzun, Recep Nur; Soylu, Hakan Huseyin
Background: Age-related declines in respiratory muscle strength and ventilatory efficiency can impair functional capacity and metabolic health in older adults. Inspiratory muscle training (IMT) has been proposed as a practical intervention to counteract these changes, yet its systemic effects remain unclear. This study aimed to examine the effects of short-term IMT on functional capacity, diaphragm thickness, and liver tissue characteristics in healthy elderly men. Methods: Thirty community-dwelling men aged 60-80 years were randomly assigned to an IMT or control group. The IMT group performed four weeks of breathing exercises using a POWERbreathe (R) device at 40% of maximal inspiratory pressure, with a weekly 10% increase in pressure. Pre- and post-intervention assessments included the six-minute walk test (6MWT), diaphragm thickness and liver density via computed tomography, and quality of life (QoL; SF-12). Results: Four weeks of inspiratory muscle training significantly improved diaphragm thickness (11.7%), fatty liver density (FLD) (+16.7%), and six-minute walk performance (+5.3%), with large time x group effects favoring the IMT group. While the physical quality of life showed modest, comparable improvements, mental health outcomes demonstrated a moderate, time-dependent improvement without a significant group-by-time interaction. Conclusions: Short-term IMT improved diaphragmatic function and functional capacity in older men and was associated with favorable changes in a liver-related biomarker; however, given that only a single liver-related metric was assessed, these findings should not be interpreted as evidence of overall improvements in liver health.
AtıfScopus1WoS1OpenAlex3İncele - MakaleYayıncıda açık erişim2026Scopus SJRQ1The mediating role of mental fatigue awareness in the relationship between perceived stress and psychological well-being among combat athletes
Yilmaz, Taner; Öz, Faik; Gül, Oguzhan; Dal, Suzan; Kara, Tayfun; Akkoç, Orkun; Küçük, Hamza; Fort, Patricia Roxana; Çitozi, Robert; Kadi, Mustafa Nurullah
Background Combat athletes face unique psychological demands, and stress may influence both their cognitive experiences and psychological well-being. This study aimed to examine the mediating role of mental fatigue awareness in the relationship between perceived stress and psychological well-being among combat athletes, thereby contributing to a clearer understanding of a potential cognitive mechanism linking stress to well-being in this population.Methods A total of 303 combat athletes voluntarily participated. Participants completed the Perceived Stress Scale, Mental Fatigue Awareness Scale, and Psychological Well-being Scale. Statistical analyses assessed the direct effects of perceived stress on psychological well-being, the effect of stress on mental fatigue awareness, and the potential mediating role of mental fatigue awareness.Results Perceived stress significantly increased mental fatigue awareness (b = 0.732, SE = 0.064, beta = 0.549, p = 0.001) and directly decreased psychological well-being (b = - 0.488, SE = 0.166, beta = - 0.191, p = 0.004). Mental fatigue awareness negatively affected psychological well-being (b = - 0.374, SE = 0.124, beta = - 0.195, p = 0.003) and partially mediated the relationship between stress and well-being (indirect effect: b = - 0.274, SE = 0.115, beta = - 0.107, p = 0.003; 95% CI = - 0.504 to - 0.049).Conclusion Perceived stress was associated with psychological well-being both directly and indirectly through increased mental fatigue awareness. These findings suggest that mental fatigue awareness may represent a relevant cognitive pathway linking stress perceptions to well-being. Accordingly, stress management and strategies aimed at regulating mental fatigue may be considered as potentially beneficial components in efforts to support psychological well-being among combat athletes.
AtıfWoS1OpenAlex2İncele - MakaleAçık Erişim2026Scopus SJRQ1Effects of wrestling training on psychological well-being, anxiety, and resilience in adolescent boys
Özkan, Ridvan; Yilmaz, Coskun; Uzun, Recep Nur; Bayrakdaroglu, Serdar; Akar, Ozge Orhan; Öz, Faik; Çiçekli, Atif; Çiçekli, Aylin; Dal, Suzan; Ursu, Vasile Emil
Background Wrestling is a physically and mentally demanding combat sport that requires discipline, focus, and emotional control. Although its physiological effects are well documented, its psychological benefits in adolescents remain underexplored. This study aimed to examine whether a short-term, non-competitive wrestling program could enhance psychological well-being, reduce sport anxiety, and strengthen resilience in adolescent boys. Methods Thirty sedentary male adolescents (aged 12-15 years) were randomly assigned to a wrestling training group (n = 15) or a control group (n = 15). The intervention consisted of six weeks of supervised wrestling sessions performed three times per week. Psychological well-being (WHO-5), sport anxiety (SAS-2), and resilience (BPRS) were assessed before and after the intervention using the validated Turkish versions of the scales. Two-way repeated-measures ANOVA was used to analyze group & times; time interactions. Results Participants in the wrestling group demonstrated significant improvements in well-being (p < 0.001) and resilience (p < 0.001), alongside marked reductions in total sport anxiety and its subdimensions (p < 0.001), compared with the control group. All effects were large (eta p & sup2; = 0.52-0.94). Conclusion A structured six-week wrestling program produced meaningful psychological benefits in adolescent boys. Regular participation in non-competitive wrestling may serve as an effective approach to promote well-being, emotional stability, and adaptive coping skills during early adolescence, supporting the preventive and developmental role of combat sports in youth mental health.
AtıfScopus3WoS5OpenAlex10İncele - MakaleYalnız künye2026Scopus SJRQ2Comparison of automated subcortical segmentation methods: VolBrain vs. 3D Slicer in brain volumetry
Acer, Niyazi; Palanci, Ozgur; Ipekten, Funda; Erdogan, Furkan Mert; Yarar, Burhan; Ozyasar, Ali Faruk
Objective:Accurate volume measurements of subcortical brain structures are essential in neuroimaging studies. This study aimed to compare two automated segmentation algorithms, 3D Slicer and VolBrain, for subcortical brain volumetry. Method:Subcortical volume measurements obtained using 3D Slicer and VolBrain were compared using the Neurofeedback Skull-stripped (NFBS) dataset. Statistical analyses included the coefficient of determination (R2) and Bland-Altman (B-A) plots. Volumetric measurements from both tools were evaluated across multiple subcortical brain regions. Results:Strong agreement was observed for the caudate nucleus, thalamus, and hippocampus, while notable discrepancies were identified in the amygdala, globus pallidus, and nucleus accumbens. Both constant and proportional systematic errors were detected in certain regions, with greater variability observed in 3D Slicer measurements. Intraclass Correlation Coefficient (ICC) analysis demonstrated weak agreement for the accumbens and amygdala, and moderate agreement for the hippocampus and thalamus, highlighting region-specific differences in performance Conclusion:Both VolBrain and 3D Slicer are effective tools for subcortical brain volumetry. VolBrain provides a fully automated workflow, whereas 3D Slicer allows greater flexibility through detailed corrections. Method selection should be guided by research objectives, regions of interest, and image quality. Further validation across diverse datasets is warranted to improve clinical applicability, particularly in regions showing lower agreement.
- MakaleAçık Erişim2026Scopus SJRQ1Modeling Long-Term Postseismic Deformation Following the 2020 Mw 7.0 Samos Earthquake Using Campaign and Continuous GNSS Observations
Solak, Halil Ibrahim; Tiryakioglu, Ibrahim; Gezgin, Cemil; Aladogan, Kayhan; Yalvaç, Sefa; Aktug, Bahadir; Yigit, Cemal Ozer; Dönmez, Ergin; Demirelli, Ertugrul; Eyübagil, Eda Esma
Highlights What are the main findings? What are the implications of the main findings?Highlights What are the main findings? What are the implications of the main findings?Abstract Postseismic deformation provides fundamental insights into earthquake-cycle processes, lithospheric rheology, and stress redistribution following large earthquakes. Although the 2020 Mw 7.0 Samos earthquake has been extensively investigated in terms of coseismic deformation and early postseismic behavior, the long-term evolution of deformation following the event remains poorly constrained. This study characterizes the long-term spatiotemporal evolution of postseismic deformation associated with the 2020 Mw 7.0 Samos earthquake using combined campaign and continuous GNSS observations. A total of 18 GNSS stations were analyzed over an approximately 4.5-year period following the earthquake. Pre-earthquake GNSS velocities were incorporated as prior constraints, while postseismic deformation was modeled using linear, logarithmic, exponential, and combined logarithmic-exponential functions. The preferred model for each station component was identified using the corrected Akaike Information Criterion (AICc), and model-selection robustness was evaluated through 1000 Monte Carlo observation-perturbation simulations. The results reveal a spatially heterogeneous postseismic deformation field with station-dependent temporal behavior. Among the nonlinear solutions passing the Monte Carlo and goodness-of-fit criteria, the seven single-process LOG and EXP solutions yielded characteristic relaxation times ranging from 182.6 to 730.5 days, with a median of 438.3 days. The two LOGEXP solutions additionally contained a logarithmic timescale of 109.6 days and exponential timescales of 292.2-438.3 days. These findings demonstrate that campaign GNSS observations, when integrated with continuous GNSS data and an objective statistical framework, can provide meaningful constraints on the long-term evolution of postseismic deformation despite sparse temporal sampling. More broadly, the results emphasize the strongly time-dependent nature of postseismic deformation and the critical role of observation timing in capturing its spatiotemporal evolution.
- MakaleAçık Erişim2026Scopus SJRQ2In Vitro Antioxidant, Antibacterial, and Cholinesterase-Inhibitory Properties of an AqueousEuphorbia macrocladaRoot Extract Obtained by Ultrasound-Assisted Extraction
Gül, Abdulkadir; Yilmaz, Firat; Topal, Fevzi; Özgen, Inanc; Aydogmus, Ercan; Arslanoglu, Hasan
In the present study, the aqueous extract obtained from the roots of Euphorbia macroclada via ultrasound-assisted extraction (Ult-ER) was evaluated for its anticholinesterase (AChE and BChE), antioxidant, and antibacterial activities. While the extract exhibited weak inhibition against AChE (IC50: 507.69 +/- 17.95 mg/mL), it showed relatively greater inhibitory activity against BChE (IC50: 22.41 +/- 0.49 mg/mL). In antioxidant assays, Ult-ER exhibited measurable antioxidant responses, with DPPH and ABTS(+) radical-scavenging capacities of 18.33 +/- 0.49 and 119.59 +/- 1.86 mg TE/L, respectively. Its Fe-3(+) and Cu-2(+) reducing capacities were 128.51 +/- 12.57 and 670.33 +/- 11.59 mg TE/L, respectively. The total phenolic and flavonoid contents were 84.80 +/- 3.31 mg GAE/g and 60.67 +/- 2.29 mg QE/g, while the total antioxidant capacity was 9.78 +/- 0.44 mg TE/g and 15.62 +/- 1.85 mg BHAE/g. In the antibacterial evaluation, Ult-ER at the highest tested concentration of 8 mg/mL exhibited inhibitory activity against all tested strains, including Enterococcus faecalis ATCC 29212, Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, and Pseudomonas aeruginosa ATCC 27853, whereas no detectable inhibition was observed at lower concentrations.
- Derleme MakaleYalnız künye2026Scopus SJRQ1Emerging thermal and non-thermal technologies addressing Salmonella contamination in low-moisture spices and herbs
Lian, Yi; Verma, Tushar; Chen, Long; Sun, Shengqian; Ozturk, Samet; Subbiah, Jeyamkondan; Liu, Shuxiang; Wei, Xinyao
Spices and herbs are vital flavoring agents in food. However, they are particularly vulnerable to microbial contamination primarily due to their open production environments and low water activity, which enhances microbial resistance to conventional pasteurization. In addition, traditional decontamination methods often struggle to balance microbial safety and product quality. This review aims to deliver valuable insights into innovative technologies designed for improving microbial safety and overall quality of spices and herbs while fostering advancements in the industry. This review comprehensively summarizes the principles, applications, and influencing factors of emerging thermal technologies (e.g., radio frequency heating, superheated steam, and vacuum steam) and non-thermal technologies (e.g., ethylene oxide, chlorine dioxide, cold plasma, and ionizing irradiation). Furthermore, it critically discusses the current limitations of these technologies and proposes strategies for future advancements. Novel decontamination technologies show promise in improving microbial safety and preserving the quality of spice and herb products. In particular, radio frequency and chlorine dioxide technologies emerge as promising options for spice decontamination due to their better ability to balance microbial control efficiency and quality retention. Further research should focus on optimizing parameters through models, developing combination technologies, and promoting pilot test verification to facilitate industrial application.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2026Scopus SJRQ1Effects of Halotherapy as an Adjunct to Preseason Training on Respiratory and Aerobic Outcomes in Elite Female Football Players: A Randomized Controlled Trial
Sarisik, Derya Cetin; Aydin, Ahmet Serhat; Söyler, Mehmet; Zileli, Raif; Özkurt, Ali; Yilmaz, Coskun; Küçük, Hamza; Karatas, Mevlut
Background: Aerobic capacity and respiratory efficiency are critical determinants of performance in elite female football, characterized by repeated high-intensity efforts and rapid recovery demands. Halotherapy, involving the inhalation of dry salt aerosol, has been shown to improve pulmonary health; however, its effects on exercise-related outcomes in athletic populations remain insufficiently investigated. This study aimed to examine the effects of a 12-week post-training halotherapy intervention on respiratory muscle strength, pulmonary function, and aerobic performance in elite female football players. Methods: Twenty-eight elite female football players competing in the Turkish Women's First League were randomly assigned to a halotherapy group (HG, n = 14) or a control group (CG, n = 14). Both groups completed an identical preseason training program, while the HG additionally performed 45 min halotherapy sessions three times per week in a controlled halochamber. Pre-and post-intervention assessments included maximal inspiratory and expiratory pressures (MIP, MEP), spirometric parameters (FVC, FEV1, PEF, MVV), and maximal oxygen uptake (VO(2)max) estimated using the Yo-Yo Intermittent Recovery Test Level 1 (Yo-Yo IRT1), along with total distance covered. A 2 & times; 2 mixed-model ANOVA was used to assess time and group & times; time interaction effects. Results: Significant group & times; time interactions were observed for MIP, MEP, VO(2)max, FEV1, PEF, MVV, and Yo-Yo IRT1 performance (p < 0.05), with large effect sizes (eta p(2) = 0.269-0.924), favoring the halotherapy group. Forced vital capacity (FVC) increased over time in both groups (p = 0.141), with no significant interaction effect. Changes in the control group were comparatively smaller across most outcomes. Conclusion: Post-training halotherapy was associated with improvements in respiratory muscle strength, ventilatory function, aerobic capacity, and intermittent running performance in elite female football players. These findings suggest that halotherapy may be considered as a complementary, non-invasive strategy to support respiratory and aerobic adaptations. Further research is required to confirm these findings and to clarify the underlying physiological mechanisms. Trial registration: NCT07406386; 6 February 2026.
- MakaleAçık Erişim2026Scopus SJRQ1Effects of psychological skills training on self-control, perceived physical self-defense capacity, and mental toughness in elite female wrestlers: a randomized controlled trial
Tutal, Varol; Demir, Okan; Sahin, Oktay; Albayrak, Ahmet Yilmaz; Bayansalduz, Mehmet; Uzun, Recep Nur; Öz, Faik; Sahinler, Yunus; Ceylan, Levent; Yilmaz, Coskun
Background Self-control, self-defense self-efficacy, and mental resilience are fundamental psychological determinants of performance and competitive endurance in combat sports. However, scientific evidence on structured, evidence-based psychological intervention programs for professional female wrestlers remains limited. This study examined the effects of a psychological skills training (PST)-based intervention on self-control, self-defense self-efficacy, and mental resilience in professional female wrestlers. Methods A randomized controlled pre-test-post-test design was employed. Thirty-six professional female wrestlers (aged 18-25) were randomly assigned to a PST group (n = 18) or a control group (CG; n = 18). The PST group completed an 8-week structured psychological intervention alongside regular training, while the CG continued routine training only. Self-control, self-defense self-efficacy, and mental resilience were assessed pre-and post-intervention using valid and reliable psychometric scales. Data were analyzed via repeated-measures ANOVA, with effect sizes calculated. Results Significant group & times; time interactions were observed across multiple outcomes. A highly significant interaction emerged for perceived physical self-defense capacity (SP; F(1,34) = 56.525, p < 0.001, eta p(2) = 0.624) and for DP scores (F (1,34) = 9.360, p = 0.004, eta p(2) = 0.216). Among self-control subscales, significant interactions were found for inhibition (F (1,34) = 8.172, p = 0.007, eta p(2) = 0.194) and, more strongly, for initiation (F (1,34) = 14.157, p < 0.001, eta p(2) = 0.294). For mental resilience, highly significant interactions were detected for confidence (F (1,34) = 59.976, p < 0.001, eta p(2) = 0.638), control (F (1,34) = 32.486, p < 0.001, eta p(2) = 0.489), and persistence (F (1,34) = 32.709, p < 0.001, eta p(2) = 0.490). Overall, the intervention demonstrated medium-to-high effect sizes across psychological performance indicators. Conclusion These findings suggest that PST may serve as a useful complementary approach for enhancing self-control, perceived physical self-defense capacity, and mental toughness in professional female wrestlers. However, results should not be interpreted as evidence of improved competitive wrestling performance, technical success, or objectively measured physical self-defense ability, as these outcomes were not directly assessed in this study.
AtıfOpenAlex1İncele - MakaleAçık Erişim2026Scopus SJRQ2Chemical Constituents and Biological Potentials of Teucrium scordium subsp. scordioides Extracts: In Vitro Experimental and In Silico Perspectives
Akgul, Bengusu Hacer; Yagi, Sakina; Cetiz, Mehmet Veysi; Saka, Enver; Zengin, Gokhan; Llorent-Martínez, Eulogio J.; Gómez-Torres, Marina; Yapici, Ismail; Gulcin, Ilhami; Yildiztugay, Evren
This study was undertaken to examine, for the first time, the antioxidant and enzyme inhibitory properties of several extracts obtained from the aerial parts of Teucrium scordium subsp. scordioides (Schreb.) Arcang (family: Lamiaceae). Among the extracts, the EtOH extract contained the highest total phenolic (89.96 mg GAE/g) and flavonoid (45.74 mg RE/g) contents. Phenylethanoid glycosides were predominant, particularly in the ethanol and aqueous extracts, and teucroside/forsythoside B and verbascoside/forsythoside A were tentatively identified as the major compounds. EtOH and 70% EtOH extracts showed comparable (p > 0.05) anti-DPPH activity (201.89 and 188.52 mg TE/g), Cu++ (562.81 and 547.88 mg TE/g), and Fe+++ (329.13 and 320.08 mg TE/g) reducing capacities. The EtOH extract showed the best antityrosinase activity (72.00 mg KAE/g). The EtOAc extract inhibited human carbonic anhydrase (CA) isoenzymes I and CAII (IC50 = 26.86 and 65.37 mu g/mL, respectively). Complementary in silico analyses of the major phenylethanoid and flavonoid glycosides supported their possible multitarget interaction patterns and identified the Forsythoside A-BChE complex as a computationally favorable model for future experimental validation. Overall, these findings indicate that T. scordium subsp. scordioides may represent a natural source of antioxidants and enzyme inhibitors for use in different health-promoting formulations.
- MakaleAçık Erişim2026Scopus SJRQ2Multi-joint isokinetic strength profiling as a predictor of vertical jump performance in elite freestyle wrestlers A cross-sectional principal component analysis
Sever, Ozan; Ceylan, Halil Ibrahim; Dhahbi, Wissem; Yilmaz, Hasan Huseyin; Özdemir, Kubra; Yazici, Ahmet Gokhan; Jalalov, Ferhad; Günay, Ahmet Rahmi; Bayrakdaroglu, Serdar; Stefanica, Valentina
Wrestling requires coordinated lower-limb strength for explosive techniques. While isokinetic testing isolates joint-specific strength and countermovement jumps assess functional power, comprehensive multi-joint assessments with advanced factor analysis remain unexplored in elite wrestlers. Twenty-one national-level male freestyle wrestlers (22.3 +/- 2.8 years; 76.2 +/- 14.7 kg) completed cross-sectional neuromuscular assessments. Isokinetic concentric strength testing at 60 degrees/s evaluated hip, knee, and ankle joint functions bilaterally using an Isomed 2000 dynamometer. Vertical jump power was assessed through countermovement jumps under bilateral and unilateral conditions using the Optojump system. All strength and power variables were normalized to fat-free mass determined via air displacement plethysmography. Statistical analyses included Pearson correlations with Benjamini-Hochberg correction, stepwise multiple regression, and principal component analysis. Bilateral jump performance correlated strongly with knee extension (R = 0.798, P <.001) and hip extension strength (R = 0.664, P =.001), with combined predictors explaining 68.8% of variance (F-2,F-18 = 19.8, P <.001). Principal component analysis identified a primary extensor factor (hip and knee extension, 52.6% variance) and an auxiliary factor (ankle plantar flexion and hip adduction, 19.0% variance). Unilateral jump models demonstrated lower explanatory power (dominant: 39.8%, non-dominant: 25.7%). Multi-joint isokinetic strength assessment, particularly hip and knee extension capacity, provides a robust prediction of vertical jump performance in elite wrestlers. The identified primary extensor strength factor represents a fundamental neuromuscular capacity underlying explosive lower-limb function, supporting targeted strength development strategies for wrestling-specific performance enhancement.
AtıfScopus12WoS12OpenAlex11İncele - MakaleAçık Erişim2026Scopus SJRQ1Beyond the fruit: phenolic composition, cytotoxicity, antioxidant, and multi-enzyme inhibitory activity of twig and leaf extracts from four understudied Turkish Rosa species
Salehi, Hajar; Terzic, Milena; Ak, Gunes; Zengin, Gokhan; Swiatek, Lukasz; Salwa, Kinga; Yapici, Ismail; Gulcin, Ilhami; Yildiztugay, Evren; Lucini, Luigi
The phytochemical profile and multi-target bioactivity of four Turkish Rosa species, R. canina, R. hemisphaerica, R. horrida, and R. pulverulenta, were evaluated across vegetative organs (twigs and leaves) and three solvent polarities (ethyl acetate (EA), methanol (MeOH), water), in total 24 extracts. Untargeted Ultra-High-Performance Liquid Chromatography-Quadrupole Time-of-Flight Mass Spectrometry (UHPLC-QTOF-MS) metabolomics, along with total phenolic (TPC) and flavonoid (TFC) content, six antioxidant assays and inhibition of seven enzymes were determined. Twig EA extracts displayed unexpectedly high TPC (83-105 mg gallic acid equivalent (GAE) per g) and TFC (35-47 mg rutin equivalent (RE) per g), indicative of selective aglycone flavonoid enrichment. The phenolic profiles identified 337 putative compounds, of which 60.84% belonged to the flavonoid class. The semi-quantitative analysis also indicates that methanol and water extracts had higher quantities of glycosylated flavonoids and phenolic acids, while EA extracts were richer in lignans, especially R. horrida-leaf-EA (1743.25 & micro;g SE per g DW), and polyphenols. In enzyme inhibition assays, EA extracts demonstrated consistent multi-target activity: AChE inhibition (up to 2.49 mg galantamine equivalent (GALAE) per g), BChE inhibition (up to 4.44 mg GALAE per g), tyrosinase inhibition (up to 63.58 mg kojic acid equivalent (KAE) per g), alpha-amylase inhibition (up to 0.72 mmol acarbose equivalent ACAE per g), and carbonic anhydrase inhibition (CA I IC50 as low as 12.17 & micro;g mL-1). The R. hemisphaerica-twig-EA extract showed highly selective cytotoxic activity against A375 cells, with a 50% cytotoxic concentration (CC50) of 3.22 & micro;g mL-1 and an SI of 73.95, compared to VERO cells. This is the first report of carbonic anhydrase inhibition, BChE-selective activity, cytotoxicity, and comprehensive enzyme-inhibitory data for R. hemisphaerica, R. horrida, and R. pulverulenta. These findings reframe the phytopharmacological potential of Turkish Rosa species beyond their traditionally studied fruit.
- MakaleAçık Erişim2026Scopus SJRQ1Positive attitudes toward and perceived importance of wearable display technology as an effective learning tool among nursing students: Turkish validity and reliability study
Aydin, Aydanur; Mese, Sevinc; Ay, Ali; Sezer, Hale; Rizalar, Selda; Güler, Sevil; Gürsoy, Ayla
Objective This research aimed to adapt Positive Attitudes Toward and Perceived Importance of Wearable Display Technology (PATPIWDT) as an Effective Learning Tool Among Nursing Students into Turkish and to examine the validity and reliability of its translation.Methods This methodological study included 698 nursing students recruited via convenience sampling. Construct validity was evaluated using Confirmatory Factor Analysis (CFA) with the Maximum Likelihood (ML) estimation method. Internal consistency was assessed using Cronbach's Alpha and McDonald's Omega coefficients.Results The model demonstrated excellent fit according to the confirmatory factor analysis results. The CFA results for the Positive Attitudes subscale indicated a good model fit (CMIN/DF = 4.79, GFI = 0.93, CFI = 0.97, RMSEA = 0.07, SRMR = 0.03). For the Perceived Importance subscale, the single-factor structure showed acceptable fit indices (CMIN/DF = 5.82, GFI = 0.98, SRMR = 0.03). As a result of examining the standardized loadings of the items, it was seen that the item factor loadings were 0.40 and above, indicating sufficient factor loading. Cronbach's alpha coefficients were 0.91 for the positive attitudes subscale and 0.84 for the perceived importance subscale. The respondents also demonstrated an above-average overall score, with a mean of 3.40 (SD = 0.69).Conclusion The Turkish version of the scale provides a dependable measure of nursing students' positive attitudes toward wearable screens and how important they consider this technology for future educational use.
- MakaleAçık Erişim2026Scopus SJRQ1Process Optimization of Spray-Dried Aquafaba and Comparison with Freeze-Drying: Techno-Functional Performance and Structural Attributes
Tunc Odabas, Merve Tugce; Saricaoglu, Furkan Turker; Parlak, Mahmut Ekrem; Akdogan, Arda; Odabas, Halil Ibrahim; Gündogdu, Engin; Simsek, Senay; Atalar, Ilyas
This study aimed to optimize the spray-drying (SD) process for aquafaba and compare the physical and techno-functional properties of the resulting powder with those of its freeze-dried (FD) counterpart. A Box-Behnken design was employed to evaluate the effects of inlet air temperature (150-190 degrees C), air speed (3.5-4.3 m/s), and feed flow rate (0.3-0.5 L/h) on 14 quality responses. The optimized SD conditions were determined to be an inlet air temperature of 189 degrees C, an air speed of 4.2 m/s, and a feed flow rate of 0.3 L/h. Validation experiments demonstrated that the developed models had high predictive capacity, with only a small discrepancy (0.56-5.88%) between the predicted and experimental values. Comparative analysis showed that the optimized SD powder had significantly lower moisture content (2.47%) and water activity (0.18) than the FD powder (3.51% and 0.34, respectively), indicating superior storage stability. In addition, the SD powder exhibited greater whiteness (82.37), higher water solubility (88.44%), and substantially greater foaming capacity (266.67%) than the FD sample (243.33%). Although the FD powder demonstrated better wettability and water absorption capacity because of its porous structure, FTIR spectroscopy and protein secondary structure analysis confirmed that SD preserved the functional integrity of aquafaba. Specifically, SD induced a transition from disordered random-coil structures to more ordered beta-sheet and beta-turn configurations, thereby improving foaming performance. Overall, these findings indicate that optimized spray-drying is a highly efficient and industrially scalable alternative to freeze-drying for producing functional aquafaba powder for use as a plant-based egg substitute.
- MakaleAçık Erişim2026Scopus SJRQ1Thermosonication improves the bioactive properties and in vitro bioaccessibility of broccoli juice through integrated RSM and metaheuristic optimization
Arpa Zemzemoglu, Tuba Eda; Tokatli Demirok, Nazan; Türkol, Melikenur; Gürfidan, Remzi; Kilim, Oguzhan; Tokatli, Nazli; Yikmis, Seydi; Mohamed Ahmed, Isam A.; Aljobair, Moneera O.; Yinanç, Abdullah
Broccoli juice is highly nutritious, containing phenolic compounds, chlorophyll derivatives, antioxidants, and other biologically active phytochemicals; however, conventional thermal processing may reduce their stability and bioaccessibility. The aim of this study was to analyse the impact of thermosonication on the following properties of broccoli juice: bioactivity, antioxidant capacity, phenolic profile and in vitro bioaccessibility. Thermosonication conditions were optimized using Response Surface Methodology (RSM) integrated with the Gray Wolf Optimizer (GWO) and Particle Swarm Optimization (PSO) algorithms. Broccoli juice samples were subjected to conventional pasteurization and thermosonication under different processing conditions, and total chlorophyll, ascorbic acid (AA), ferric reducing antioxidant power (FRAP), total phenolic content (TPC), and individual phenolic compounds were evaluated. Digestive stability and post-digestion bioaccessibility were also assessed using a standardized in vitro gastrointestinal digestion model. The developed quadratic models exhibited high statistical significance for TPC and FRAP responses (p < 0.001), with coefficients of determination (R2) of 0.9949 and 0.9853, respectively. The optimum thermosonication conditions were identified as 40 degrees C, 6.75 min, and 64.04% amplitude, under which experimentally validated FRAP and TPC values reached 12.86 mmol TE/L and 149.77 mg GAE/100 ml, respectively. HPLC-DAD analysis showed that gallic acid and naringin were the pre-dominant phenolic compounds, and that thermosonication promoted greater phenolic retention than conventional pasteurization. In vitro digestion results demonstrated that thermosonicated broccoli juice maintained significantly higher levels of TPC, FRAP, chlorophyll, and AA throughout gastrointestinal digestion, with higher TPC recovery (30.45%) than pasteurized samples (26.22%), indicating improved post-digestion bioaccessibility of phenolic compounds. Similar improvements were observed for antioxidant capacity and chlorophyll retention. Furthermore, PSO and GWO optimization results showed strong agreement with RSM predictions, confirming the robustness of the proposed optimization strategy. Overall, thermosonication was shown to effectively and sustainably enhance the functional quality, antioxidant properties, phenolic stability, and digestive bioaccessibility of broccoli juice.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ2Measuring Dysfunctional Grief due to a COVID-19 Loss: A Kurdish Validation Study of the Pandemic Grief Scale
Karimi, Kambiz; Yaghoobi, Abolghasem; Gungor, Sunay; Karimi, Afagh; Sohrabi, Saeed
Millions of people are grieving the loss of someone who died of COVID-19. The current study aims to validate a Kurdish version of the Pandemic Grief Scale which is a brief English-language mental health screener to identify cases of dysfunctional grief associated with a COVID-19 death. We recruited 501 participants. Participants completed the PGS, WSAS, PHQ-9, and Optimism scales. The factor structure, reliability, and validity of the PGS were analyzed. Using exploratory factor analysis (N1 = 300), we derived an one-factor structure. In confirmatory factor analysis (N2 = 201), the one-factor model showed good to excellent fitness. The PGS was positively correlated with PHQ-4, and WSAS and negatively correlated with optimism. The scale was internally consistent with a Cronbach's alpha of .79. These results support that the Kurdish version of the PGS is a valid and reliable assessment to assess the severity of dysfunctional grief associated with a COVID-19 death.