İstanbul Galata Üniversitesi Kurumsal Akademik Arşivi
DSpace@Galata, İstanbul Galata 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
Spatial characterization of the phoenixin receptor in the lacrimal and major salivary glands
(2026) Gürler, Esra Bihter; Elmas, M.A.; Eyüpoğlu, I.P.; Arbak, S.; Çevik Aras, H.
Objective: To identify and characterize the expression of phoenixin receptor GPR173 (G protein-coupled receptor 173) in the rat lacrimal and major salivary glands (parotid, submandibular, and sublingual). GPR173 is associated with hormonal regulation and autoimmunity; however, its expression in exocrine glands has yet to be characterized. Design: Under anesthesia, eight Sprague Dawley rats underwent bilateral dissection of the lacrimal and major salivary glands. GPR173 expression was assessed using Western blotting and immunofluorescence. Immunoreactivity was quantified using ImageJ software and compared using the Friedman test with DunnBonferroni post hoc analysis. Results: GPR173 protein expression was found in all examined exocrine glands. In the major salivary glands, GPR173 was detected in both acinar and ductal cells, while expression was confined to acinar cells in the lacrimal gland. The submandibular and parotid glands showed significantly higher immunoreactivity than the lacrimal gland (p < .01 and p < .05, respectively). Ductal epithelium showed stronger immunopositivity compared to acinar epithelium. GPR173 immunoreactivity was also observed in periductal stromal tissue in major salivary glands. Conclusion: GPR173 expression was observed in both acinar and ductal cells of all major salivary glands, while in the lacrimal gland, it was restricted to the acinar cells. This differential localization suggests tissue-specific relevance.
INVESTIGATION OF THE REASONS FOR PREFERENCE AND EMPLOYMENT EXPECTATIONS OF INTERNATIONAL STUDENTS STUDYING IN THE DEPARTMENT OF PHYSIOTHERAPY AND REHABILITATION IN TÜRKİYE
(Turkish Physiotherapy Association, 2026) Karagözoğlu Coşkunsu, Dilber; Tosun, Anıl; Demirbüken, İlksan; Avcı, Ender Ersin; Çağlar, Engin; Aktar Reyhanıoğlu, Duygu; Okur Dündar, Şule; Polat, Mine Gülden
Purpose: To investigate the reasons why international students (ISs) studying in the Physiotherapy and Rehabilitation (PTR) departments in T & uuml;rkiye chose to study in this field and their employment expectations, using sample from one public and two foundation universities in & Idot;stanbul. Methods: A total of 564 students were invited to participate in the study. Participants were asked to complete a 12-item questionnaire prepared by the researchers, which assessed their reasons for choosing PTR education in T & uuml;rkiye and their career plans after graduation. Results: A total of 267 students participated in the study (200 from Turkish-medium programs and 67 from English-medium programs). The most cited reason for choosing to study in T & uuml;rkiye among both Turkish-and English-medium students was cultural similarity [60% (n=200); 58.2% (n=39), respectively]. Among Turkish-medium students, 50.2% planned to work in T & uuml;rkiye, and 17.4% planned to return to their home countries. Additionally, 76.1% expressed interest in pursuing graduate studies in T & uuml;rkiye. Among English-medium students, 28.4% intended to work in T & uuml;rkiye, and 11.9% planned to return home. In this group, 61.2% stated that they were considering graduate education in T & uuml;rkiye. There was a statistically significant difference between the two groups in terms of the percentage of students who intended to work or pursue graduate education in T & uuml;rkiye (p=0.001 and p=0.018, respectively). Conclusion: According to our findings, a significant proportion of ISs, particularly those studying in Turkish-medium PTR programs, intend to work in T & uuml;rkiye after graduation. This should be taken into account in workforce planning efforts for physiotherapists.
Exercise Interventions for Improving Balance, Strength, and Functional Capacity in Older Adults: A Randomized Controlled Trial
(Human Kinetics, 2026) Özdincler, Arzu Razak; Yiğit, Şafak; Umut, Gülsena Utku; Ekşi, Büşra Ülker; Güney, İrem
Age-related declines in strength and balance increase fall risk in nursing home residents. This study compared the effects of the modified Otago Exercise Program and the Large-Amplitude Functional Exercise Program (LAFEP) on fall risk, balance, functional capacity, and lower-extremity strength. In this randomized controlled trial, 70 participants (aged >= 65) residing in nursing homes were randomly assigned to the modified Otago Exercise Program (n = 35) or the LAFEP (n = 35). Both groups received supervised group exercise three times weekly for 12 weeks. Primary outcomes were the functional reach test and the timed up-and-go test. Secondary outcomes included the Performanz Balance System, the 6-min walk test, and the five times sit-to-stand test. Both interventions led to significant within-group improvements (p < .05). However, the LAFEP group demonstrated significantly greater improvements in dynamic balance, specifically in the functional reach test (p = .03). Improvements in functional mobility outcomes, including the timed up-and-go (p = .67) and the five times sit-to-stand tests (p = .17), were also more pronounced in the LAFEP group; however, these between-group differences did not reach statistical significance. Both the modified Otago Exercise Program and the LAFEP were effective in enhancing balance and functional outcomes for older adults in residential care. The LAFEP, however, yielded superior gains specifically in dynamic balance. The findings suggest that the LAFEP, adapted from neurorehabilitation principles, may be a viable and potentially more effective alternative to conventional fall prevention exercise programs for this population.
Attachment and Relational Regulation in Esports Psychology: Understanding Performance in Digital Environments
(Springer Nature, 2026) Balıkçı, Elif
Esports has emerged as a rapidly professionalizing performance domain characterized by high cognitive demands, continuous social evaluation, and digitally mediated interaction. While research has largely focused on attentional, motor, and decision-making processes, the relational and regulatory dimensions of esports remain underexplored. Drawing on attachment theory, this chapter conceptualizes esports as a hybrid relational environment in which stress, evaluation, and mediated proximity simultaneously activate internal regulatory systems. It argues that digital communication channels may function as forms of secure base and safe haven, reorganizing attachment processes within technologically mediated contexts. Differences in attachment anxiety and avoidance are discussed in relation to performance stress, feedback sensitivity, team coordination, and long-term well-being. By moving beyond a purely cognitive account of esports performance, this chapter highlights the importance of relational regulation and psychosocial dynamics in sustaining high-level competitive play. Attachment theory is proposed as a holistic framework for understanding how players navigate threat, belonging, and exploration in the digital age. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.
Assessment of Surface Roughness and Bacterial Adhesion of Occlusal Splints Fabricated with Different Layer Thicknesses, Polishing Techniques and Build Orientations
(Multidisciplinary Digital Publishing Institute (MDPI), 2026) Dede, Merve; Saygılı, Sina; Topçuoğlu, Nursen
This study evaluated the combined effects of build orientation, layer thickness, and polishing protocols on surface roughness and bacterial adhesion of occlusal splints. Ten disc-shaped specimens (Ø16 × 3 mm) were fabricated for each group using a digital light processing (DLP)-based 3D printer. Specimens were printed at two orientations (0° and 90°) and two layer thicknesses (50 and 100 µm) using a splint resin. Surface roughness was measured with a contact profilometer, and bacterial adhesion was measured by optical density (OD) readouts for Streptococcus mutans using a spectrophotometer. Surface morphology was examined by field-emission scanning electron microscopy (SEM). Statistical analyses were performed using jamovi. Because normality and/or homogeneity assumptions were not met, robust analysis of variance was applied. Polishing protocol significantly affected surface roughness (Ra) values. Unpolished specimens showed the highest Ra values, whereas mechanical polishing combined with centrifugation produced the lowest values. No significant main effects of polishing protocol, layer thickness or orientation were observed for bacterial adhesion. SEM findings supported the roughness results. Surface roughness was primarily influenced by polishing protocols and their interactions, whereas bacterial adhesion remained relatively stable. The weak Ra–OD correlation indicated that surface roughness alone was not a reliable predictor of bacterial adhesion.
