İstanbul Gedik Üniversitesi Kurumsal Akademik Arşivi
DSpace@Gedik, İstanbul Gedik Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Redefining endurance testing in soccer: the reliability and impact of a ball-integrated yo-yo intermittent recovery test
(Campus Educa Sportis S.L., 2025) Yılmaz, Levent; Shahidi, Seyed Houtan
The Yo-Yo Intermittent Recovery Test Level 1 (Yo-Yo) is a widely recognized method for assessing aerobic capacity in soccer players. Despite its utility, the test does not incorporate ball manipulation, which is a critical component of soccer-specific endurance. This study aimed to evaluate the reliability of a modified soccer-specific Yo-Yo test (MYo-Yo) that includes ball dribbling, passing, and control, and to compare the physiological responses with those from the conventional Yo-Yo test. Twenty elite male soccer players (mean ± SD: age, 16.4 ± 1 years; height, 173 ± 7 cm; body mass, 65.7 ± 10.4 kg) completed both Yo-Yo tests, with and without ball manipulation. Performance metrics included the number of completed shuttles (Level), total distance covered (Distance; m), and blood lactate concentration (Lactate; mmol/L), while maximal oxygen consumption (V̇ O2 max; ml/min/kg) was estimated for all trials. The modified Yo-Yo test (MYo-Yo) demonstrated high reliability, with Intraclass Correlation Coefficients (ICC) of 0.802 for Level, 0.982 for Distance, 0.997 for V̇ O2 max, and 0.992 for Lactate (P ≤ 0.001). Comparatively, the MYo-Yo test resulted in significantly lower distances than the standard Yo-Yo test (832 vs. 1520 m, respectively; P < 0.001) and lower lactate concentrations (5.2 vs. 10.9 mmol/L; P < 0.001). No significant correlations were found between the two tests for outcomes (P > 0.05). In summary, integrating ball manipulation in the MYo-Yo test introduces distinct physical and technical demands that influence overall performance. The MYo-Yo test offers a reliable alternative for assessing soccer-specific endurance, better replicating the physical demands encountered during a soccer match.
K0S and Λ((Λ)over-bar) two-particle femtoscopic correlations in PbPb collisions at √sNN=5.02 TeV
(Elsevier B.V., 2024) Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; del Valle, A. Escalante
Two-particle correlations are presented for KS0, [Formula presented], and [Formula presented] strange hadrons as a function of relative momentum in lead-lead collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The dataset corresponds to an integrated luminosity of 0.607nb−1 and was collected using the CMS detector at the CERN LHC. These correlations are sensitive to quantum statistics and to final-state interactions between the particles. The source size extracted from the KS0KS0 correlations is found to decrease from 4.6 to 1.6 fm in going from central to peripheral collisions. Strong interaction scattering parameters (i.e., scattering length and effective range) are determined from the [Formula presented] and [Formula presented] (including their charge conjugates) correlations using the Lednický–Lyuboshitz model and are compared to theoretical and other experimental results.
Distinctive delta and theta responses in deductive and probabilistic reasoning
(Wiley, 2025) Sevim, Emir Faruk; Yıldırım, Yasin; Ünsal, Esra; Dalmızrak, Esra; Güntekin, Bahar
IntroductionThe neural substrates of reasoning, a cognitive ability we use constantly in daily life, are still unclear. Reasoning can be divided into two types according to how the inference process works and the certainty of the conclusions. In deductive reasoning, certain conclusions are drawn from premises by applying the rules of logic. On the other hand, in probabilistic reasoning, possible conclusions are drawn by interpreting the semantic content of arguments.MethodsWe examined event-related oscillations associated with deductive and probabilistic reasoning. To better represent the natural use of reasoning, we adopted a design that required participants to choose what type of reasoning they would use. Twenty healthy participants judged the truth values of alternative conclusion propositions following two premises while the EEG was being recorded. We then analyzed event-related delta and theta power and phase-locking induced under two different conditions.ResultsWe found that the reaction time was shorter and the accuracy rate was higher in deductive reasoning than in probabilistic reasoning. High delta and theta power in the temporoparietal, parietal, and occipital regions of the brain were observed in deductive reasoning. As for the probabilistic reasoning, prolonged delta response in the right hemisphere and high frontal theta phase-locking were noted.ConclusionOur results suggest that the electrophysiological signatures of the two types of reasoning have distinct characteristics. There are significant differences in the delta and theta responses that are associated with deductive and probabilistic reasoning. Although our findings suggest that deductive and probabilistic reasoning have different neural substrates, consistent with most of the studies in the literature, there is not yet enough evidence to make a comprehensive claim on the subject. There is a need to diversify the growing literature on deductive and probabilistic reasoning with different methods and experimental paradigms.
The effectiveness of the 'my hands are clean program' based on the health promotion model conducted with virtual reality method
(Marmara University, 2024) Yurt, Seher; Özdemir, Tuğba; Gür, Kamer; Çalık Tümerdem, Kevser Burcu
Objective: Hand hygiene is very important as the hand is the organ that contains the most microorganisms. On the other hand, the school environment is an important environment for raising awareness of hand hygiene and acquiring handwashing behavior. This research was conducted to determine the effectiveness of the 'My Hands are Clean Program', which is carried out with the virtual reality method based on the health promotion model. Methods: This research is a quasi-experimental study with a pre-test and post-test model. The research population is 4th-8th grades in a school. Data were collected by socio-demographic characteristics form, hand hygiene observation form, and decision scale. Measurements were made before the training, after the training, the first follow-up after one month and the second follow-up after two months. Data were analyzed using IBM SPSS 26.0, Kolmogorov-Smirnov, Wilcoxon Test, Fridman Test, Mann Whitney U test, Kruskal Wallis test, and Bonferronicorrected pairwise comparisons in further analysis. The "TREND checklist" was used to report it. Results: The students got the highest score on the hand hygiene observation form at the first follow-up. It was determined that students' post-test, first follow-up and second follow-up mean scores were significantly higher than the pre-test mean scores. In Gpower Post hoc power analysis, the power of the study was determined to be 99%. Conslusion: It can be said that the use of technology-based methods in developing handwashing behavior, which will affect lifelong health, is effective for school-age students.
Real time parking space detection system using a pixel-based processing technique
(Institute of Electrical and Electronics Engineers Inc., 2024) Şener, Berkay; Dinçer, Şerife Esra
This study proposes a real-time parking space detection using a pixel-based image processing technique. The proposed algorithm detects free spaces in a busy parking place video stream. The performance of the algorithm is compared with CNN algorithm using YOLOv8 software. The detection rate of the developed algorithm is found to be 9% higher than the YOLOv8 classification model with 5 times less error rate. Also, the proposed system missed fewer objects and requires less memory space than the YOLOv8 model.
