İstanbul Gelişim Üniversitesi Kurumsal Açık Erişim Arşivi
DSpace@Gelişim, İstanbul Gelişim 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 yayınların etkisini artırmak için telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Öğe Türü: Öğe , Toward a Multidimensional Fitness Paradigm: a Critical Review and Agenda for Science, Practice, and Policy(Frontiers Editorial Office, 2026) Erdem, Fırat Çağlar; Bıyıklı, Türker; Soylu, Çağlar; Açar, GörkemThis study aims to critically re-evaluate classical definitions of physical fitness proposed by leading institutions such as the American College of Sports Medicine (ACSM), the World Health Organization (WHO), and the National Academy of Sports Medicine (NASM). Despite their physiological robustness, these definitions no longer capture the multidimensional determinants of human functionality in modern life. The paper introduces a multidimensional fitness paradigm that reframes fitness as a biopsychosocio-emotional capacity integrating physical, mental, social, occupational, and digital dimensions. A narrative critical review of transdisciplinary literature was conducted across the fields of behavioral science, social epidemiology, occupational health, and digital medicine. Conceptual, methodological, and operational gaps in existing frameworks were identified and critically appraised. Drawing from the biopsychosocial model, self-determination theory, behavior change frameworks (COM-B), and digital ethics literature, the study synthesized theoretical foundations and proposed measurable indicators for five interacting dimensions of fitness. Cross-cutting themes such as equity, ethics, data governance, and cultural variability were analyzed to ensure applicability across diverse populations. The review reveals that traditional physiological metrics—such as cardiorespiratory endurance, strength, and body composition— are necessary but insufficient to account for overall human functioning. Evidence demonstrates that cognitive control, emotion regulation, social connectedness, occupational balance, and digital literacy substantially influence wellbeing, resilience, and sustainable performance. The proposed multidimensional model operationalizes fitness through integrated indicators and suggests a validation roadmap encompassing reliability, validity, feasibility, and fairness. Furthermore, illustrative applications in clinical, workplace, and municipal contexts demonstrate how multidimensional fitness can guide personalized interventions and policy innovations. The multidimensional fitness paradigm expands the conceptual boundaries of fitness from a purely physiological construct to an integrative biopsychosocio-digital framework. By embedding ethical, cultural, and technological considerations, it offers a roadmap for 21st-century health promotion and sustainable performance. The study concludes with a 10-point research and policy agenda emphasizing equity, data ethics, and cross-sectoral integration, positioning fitness as both a scientific construct and a societal compass for human flourishing. The framework is presented as a conceptual proposal: its structure, indicators, and applications remain to be empirically validated.Öğe Türü: Öğe , Stimulation-Associated Motor and Functional Improvement After Epidural Spinal Cord Stimulation in Chronic Spinal Cord Injury Secondary to Spinal Ependymoma: A Case Report(American Paraplegia Society, 2026) Çevik Baran, Aslıhan; Gönüllü, Edip; Balkuv, Ece; Dinç Yavaş, Arzu; Sarıoğlu, Şeyma; Eker, Emir; Şerifoğlu, Luay; Dereli, Elif Elçin; Açar, Görkem; Matis, Georgios K.Context: Chronic spinal cord injury (SCI) secondary to spinal tumors may cause persistent motor and sensory dysfunction despite surgical treatment and rehabilitation. Ependymomas are the most common intramedullary spinal tumors in adults, but long-standing neurological deficits after tumor surgery are difficult to treat. Findings: We report a 51-year-old man with chronic SCI after thoracic spinal ependymoma surgery performed in 2000. He had persistent right-predominant lowerextremity weakness, sensory loss below T10, limited walking endurance, and canedependent ambulation. EES was performed in October 2024 using a 32-contact paddle lead positioned over T12-L1. Motor-oriented programs were predominantly delivered at 40 Hz (approximately 3-4 mA; pulse width approximately 300 microseconds) and selected according to activity. The patient progressed from AIS C to AIS D, while SCIM III increased from 84 at baseline to 88, 96, 98, and 98 at 3, 6, 9, and 12 months, respectively. At the latest follow-up, AIS D was maintained with stimulation OFF and ON, while active stimulation provided additional facilitation of selected lower-extremity muscles, particularly ankle dorsiflexion. Conclusion/Clinical relevance: This case suggests that individualized EES may be associated with clinically meaningful motor and functional improvement even decades after SCI secondary to spinal ependymoma surgery. Longitudinal gains persisted with stimulation OFF, while stimulation ON provided additional taskdependent motor facilitation.Öğe Türü: Öğe , The Effect of Samarium Substitution on the Structure, Conduction Mechanism, and Dielectric Relaxation of MnNi-Nanospinel Ferrites(Royal Society of Chemistry, 2026) Ünal, Bayram; Baykal, Abdülbaki; Almessiere, Munirah Abdullah; Mojtahedie, E.The incorporation of Sm into Mn–Ni spinel ferrites to form Mn0.5Ni0.5SmxFe2xO4 (x r 0.10) nanospinel ferrites (Sm - MnNi (x r 0.10) NSFs) was achieved via the sol–gel method. The product was subjected to different characterization techniques to investigate its structure and morphology. A cubic crystal structure and a sphere morphology were confirmed by X-ray Powder Diffractometry (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM), respectively. The electrical and dielectric spectra of the Sm - MnNi (x r 0.10) NSFs were systematically examined using dielectric spectroscopy, electrical conductivity, and complex impedance analyses. The AC conductivity spectra reveal both frequency- and temperature-dependent dispersions, which are consistent with Jonscher’s power law (JPL), whereas the Arrhenius analysis of the DC conductivity discloses two thermally activated regimes dominated by localized and long-range small polaron-hopping processes. The calculated activation energies ranged from 10 to 190 meV in the LT region and 420 to 530 meV in the HT region, confirming the dual conduction mechanism. Furthermore, dielectric constant and loss spectra demonstrated Maxwell–Wagner interfacial polarization and Koop’s phenomenological behavior, with Sm3+ ion-substitution ratios most strongly influencing the grain boundary resistance and polarization dynamics. In addition, the complex electrical modulus and Nyquist plots reveal single semicircular arcs, indicating grain-boundary-dominant conduction and non-Debye relaxation. Interestingly, moderate Sm3+ ion-substitution ratios, ranging from 0.050 to 0.075, improve lattice distortion, lower the activation energy (EA), and enhance hopping conduction; conversely, excessive substitution ratios, such as 0.10, lead to defect clustering, significantly reducing electrical performance. All these findings strongly highlight the critical role of rare earth (RE) element substitution in shaping conduction and dielectric relaxation in Mn–Ni NSFs.Öğe Türü: Öğe , Psychological Experiences and Consequences of Classification and Reclassification in Competitive Para Sport: a Scoping Review(BioMed Central Ltd, 2026) Aydoğan, Mehmet; Çağlayan Tunç, AygülBackground Classification determines eligibility and sport class in competitive Para sport, yet its psychological consequences have not been synthesised separately from the technical classification literature. This review mapped athlete experiences and psychological consequences associated with classification, reclassification, declassification, and related classification decisions. Methods A scoping review was conducted in accordance with JBI guidance and reported using PRISMA-ScR. Web of Science Core Collection and Scopus were searched from inception to 26 July 2026; PubMed/MEDLINE, Academic Search Ultimate, and OpenDissertations were searched from inception to 27 July 2026. Two reviewers independently completed title-and-abstract and full-text screening. Data were charted descriptively and synthesised using inductive thematic synthesis. Formal critical appraisal was not undertaken because the review was designed to map a heterogeneous evidence base rather than estimate effects or grade certainty. Results The searches identified 2,658 records; 1,289 remained after duplicate removal. Twenty-four reports were sought for full-text retrieval, 22 were assessed, and 17 studies were included. The evidence comprised 10 primarily qualitative studies, four quantitative survey or cross-sectional studies, one mixed-methods study, and two participatory or multi-method evaluations. Seven themes were identified: process knowledge and communication; fairness, trust, and system integrity; uncertainty, control, and emotional consequences; identity, belonging, dignity, and social relations; satisfaction, acceptance, and perceived utility; motivation, self-efficacy, behavioural responses, and performance; and access, burden, and participation. The most disruptive accounts were reported when decisions were poorly explained, perceived as inconsistent, or associated with unexpected reclassification or loss of eligibility. Prospective and longitudinal evidence was scarce, and no included study prospectively evaluated a classificationspecific support strategy. Conclusions Classification was reported as both a technical assessment and an organisational and interpersonal process. Across the mapped evidence, transparent information, respectful communication, sport-specific procedures, credible review routes, and attention to access and transition were associated with trust, acceptance, and well-being. Classification-specific education, support, and referral approaches should be regarded as evidence-informed priorities for prospective evaluation, particularly around reclassification, ‘Not Eligible’ decisions, protest, appeal, and career transition.Öğe Türü: Öğe , Nurses’ Experiences and Perspectives on Perioperative Care During Neonatal Circumcision: A Qualitative Study(Saunders, 2026) Aslan, Meltem; Nart, Aydın; Akoğlu, BengisuPurpose: To explore nurses’ knowledge, experiences and perceptions of perioperative care related to neonatal circumcision and to identify implications for nursing practice and care standardization. Design: A qualitative descriptive study. Methods: Twenty-eight nurses working in neonatal care settings and involved in neonatal circumcision care were recruited using snowball sampling. Data were collected through face-to-face, semi-structured indepth interviews and analyzed using Braun and Clarke’s reflexive thematic analysis. Reporting followed the Consolidated Criteria for Reporting Qualitative Research. Findings: Five themes were identified: (1) knowledge and training needs, (2) clinical assessment of circumcision timing, (3) postoperative nursing care and family education, (4) interprofessional collaboration and nursing roles in perioperative care, and (5) policy and protocol needs. Nurses described variation in clinical practices and highlighted challenges related to pain assessment, bleeding and complication monitoring, and family education. Clinical experience was perceived as an important contributor to competence. Participants also emphasized the importance of coordinated perioperative care and greater standardization of neonatal circumcision practices. Conclusions: Nurses have important roles throughout neonatal circumcision care, particularly in clinical assessment, pain and complication monitoring, family education, and interprofessional coordination. Practice-oriented education, standardized perioperative care protocols, and strengthened interdisciplinary communication may contribute to safer and more consistent neonatal circumcision care.
