WoS İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/6
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Article Federal Reserve Interest Rates, Investment Behavior, and Arbitrage in Exchange Traded-Funds(Conscientia Beam, 2026) Sobati, Pegah; Koy, Ayben; Colak, Andac BaturThis study investigates the influence of U.S. Federal Reserve interest rate policy on investor behavior, liquidity, and arbitrage efficiency in 29 iShares exchange-traded funds (ETFs) spanning large-, mid-, and small-cap benchmarks from 2013 to 2024. Using weekly data and econometric techniques combining time-series and panel approaches, the analysis incorporates key macroeconomic indicators, interest rates, the U.S. dollar index, economic activity measures, and market volatility to assess their combined effect on ETF market dynamics. Findings show that interest rate shifts significantly influence asset allocation, sector preferences, and risk tolerance, with higher rates often strengthening the dollar and increasing the appeal of fixed-income assets. Active trading is associated with narrower bid-ask spreads through enhanced liquidity, while passive investment widens spreads. ETF volatility is positively related to spreads, reflecting increased uncertainty and transaction costs in turbulent markets. The results provide empirical evidence on the behavioral channels linking monetary policy, market conditions, and trading efficiency, offering implications for policymakers, asset managers, and market participants. The major contribution of the study is to the empirical finance literature by integrating time-series and panel econometric methods to quantify the joint effects of interest rate policy, macroeconomic indicators, and investor sentiment on ETF market microstructure. Findings offer statistically robust insights into liquidity formation, volatility transmission, and arbitrage efficiency in diversified ETF markets.Article Positioning School Readiness as Ecological Fit: The School Readiness Ecological Approach (SERA) for Occupational Therapy and Education(Routledge Journals, Taylor & Francis Ltd, 2026) Aydoner Bektas, SelenTraditional perspectives on school readiness have emphasized child-level competencies such as cognitive, language, and behavioral skills. While important, the narrow focus overlooks the ecological systems - families, teachers, and communities - that shape children's adaptation to school. The participation-oriented perspective of occupational therapy has also been largely absent from the discourse. The School Readiness Ecological Approach (SERA) reframes school readiness as a matter of ecological fit rather than merely a set of children's skills. Based on Bronfenbrenner's ecological systems theory and the Person - Environment - Occupation model, SERA conceptualizes readiness as the outcome of dynamic exchanges between children, families, educators, schools, and policy environments. SERA addresses key gaps by: (1) shifting focus from isolated child attributes to participation in real-life contexts; (2) integrating occupational therapy's holistic perspective into readiness; and (3) providing a multi-level framework to guide research, practice, and policy. SERA emphasizes four domains - child, family, educational environment, and community - as interconnected contributors to school readiness trajectories. As a conceptual bridge across education, health, and social systems, SERA will broaden theoretical scope, foster interdisciplinary collaboration, and promote inclusive, and sustainable strategies. Reconceptualizing school readiness as ecological fit will help move beyond deficit-based views and support more equitable and effective school transitions.Article Determination of Age- and Gender-Specific Reference Values for Different Functional Tests with or without Cognitive Dual-Task in Young Adults: An Observational Study(Turkey Assoc Physiotherapists, 2025) Analay Akbaba, Yildiz; Emirza Cilbir, Cigdem; Poyraz Isleyen, Tugce; Evrendilek, Halenur; Gungor Eroglu, Nazli; Asena Yekdaneh, Aye; Gungor, Feray; Güngör, Nazlı; Emirza, Cigdem; İşleyen, Tuğçe Poyraz; Analay, Yıldız; Yekdaneh, Ayşe AsenaPurpose: To determine the age-and gender-specific reference values for the five functional tests performed with or without cognitive dual-task in young adults. Methods: In this cross-sectional observational study, a total of 107 participants were divided into four subgroups based on gender and age: females 18-25 years (G1), and 26-35 years (G2), and males 18-25 years (G3), and 26-35 years (G4). Participants completed the timed up and go test (TUG), 4 meter gait speed test, 10 meter walk test (10MWT), timed 25-foot walk test, and 1 minute sit-to-stand test (1MSTS) with and without dual-tasks. The mean value of each test was recorded. Results: Significant differences were observed in some functional tests. TUG was longer in G1 compared to G2 (p=0.019), 10MWT dual-task performance differed between G1 and G3 (p=0.041), and 1MSTS and 1MSTSdual scores were higher in G3 compared to G4 (p=0.044 and p=0.035, respectively). All dual-task conditions led to decreased performance compared to single-task conditions (p<0.001) Conclusion: The dual-task added to the performance tests changes the time, speed, and number of repetitions in healthy individuals, and these effects may vary according to age and gender. These reference values can guide clinical assessments of dual-task performance in this population.Article Development and Psychometric Properties of the Self-Efficacy Scale for Symptom Management and Self-Care in Patients with Cardiac Surgery(Springer Publishing Co, 2025) Aksut, Rabia Saglam; Capik, Canturk; Elmas, Tugce BozkurtBackground and Purpose: Evaluating self-efficacy for symptom management and self-care is crucial for ensuring follow-up care after cardiac surgery. As there is not yet a validated measurement tool for this evaluation, the aim of this study was to develop the Self-Efficacy Scale for Symptom Management and Self-Care (SESMSC: Cardiac Surgery) in patients with cardiac surgery and to examine its psychometric properties. Methods: The Symptom Management Theory and Bandura's Self-Efficacy Theory were used as the theoretical background for scale development. A multiphase design was utilized. The initial development phase consisted of item generation and expert panel review. The second phase comprised a three-step validation process: (a) face and content analysis (CFA) for construct validity, and (c) Cronbach's alpha, test-retest, and item- total correlation analysis to assess internal consistency reliability. The sample (n = 401) was randomly divided into two subsamples for EFA and CFA (EFA group: n = 201; CFA group: n = 200). Results: EFA suggested a 20-item, two-factor structure with factor loadings of .342-.782. The two subscales of the scale were labeled symptom management self-efficacy and self-efficacy for ch's alpha, test-retest, and item-total correlation results demonstrated acceptable internal consistency reliability. Implications for Practice: The SESMSC: Cardiac Surgery may be a useful tool to evaluate self-efficacy for symptom management and self-care after cardiac surgery. Further evaluation in independent samples is needed to investigate its psychometric properties and usefulness in clinical practice.Article Psychological Effects of Robotic Rehabilitation in Individuals With Spinal Cord Injury: A Narrative Review(BMC, 2025) Ibrahim, Ismail A.; Mounir, Mennatallah M.; Hussein, Omar; Parnian, Nadieh; Sefertas, Ece; Ravanbod, Amin; Arican, Tuna ErenIntroductionSpinal cord injury (SCI) is associated with severe physical, psychological, and social burdens. Robotic rehabilitation, especially robotic-assisted gait training, is increasingly used to improve functional recovery. Nonetheless, its psychological effects which are key to motivation, compliance, and long-term prognosis have received little scrutiny.MethodsWe conducted a narrative review across five databases (PubMed, Web of Science, Scopus, Cochrane, Embase) from inception to January 2025. Studies were included if they evaluated robotic rehabilitation in SCI and reported psychological outcomes. Findings were synthesized thematically into domains of anxiety/technophobia, motivation/engagement, self-efficacy/dependence, and frustration/quality of life.ResultsRobotic systems frequently improved autonomy, motivation, and self-confidence, which corresponded to less depression and a better quality of life. Nevertheless, negative effects including technophobia, frustration from technological malfunction, and loss of self-efficacy from excessive dependence were found. Patient experiences ranged: empowerment and new optimism were reported by some patients, whereas others experienced the devices as complicated, emotionally alienating, or inadequately adjustable.DiscussionRobotic rehabilitation has a dual psychological effect. On one hand, it encourages engagement and emotional resilience; on the other, it carries risks of interdependence and diminished autonomy. There are ethical issues to be resolved access disparities, data protection, and preserving human connection that require careful management. The inclusion of psychological screening, education of patients, and specific goal-setting within protocols can maximize results.ConclusionRobotic rehabilitation is highly capable of promoting progress after SCI if psychological considerations are completely incorporated into rehabilitation interventions. A multimodal approach that is interdisciplinary and ethically solid is required to achieve optimized functional improvement as well as psychosocial health.Article Development and Psychometric Properties of the Home Programme Quality Evaluation Tool for Therapists, Clients and Caregivers: A Validity and Reliability Study(MA Healthcare Ltd, 2025) Akyurek, Gokcen; Bektas, Selen Aydoner; Sipahi, BusraBackground/Aims Home programmes - where rehabilitation activities are carried out in the client's home - are frequently used in the rehabilitation process but there are no standardised measurements to assess preparation, delivery and quality. The aim of this study was to determine the validity and reliability of two different forms - one for therapists and one for client and caregivers - that were developed as part of the Home Programme Quality Evaluation tool. Methods Initially, two 38-item forms were created based on a comprehensive literature review and expert panel evaluation. These forms were piloted with 30 participants from each target group to assess grammatical clarity, comprehensibility and cultural appropriateness. Based on the pilot feedback, minor linguistic adjustments were made, and the refined 38-item forms were then administered to 179 physiotherapists, occupational therapists and speech and language therapists, and 185 clients/caregivers (100 clients, 85 caregivers) for psychometric analyses. Psychometric analyses were conducted to evaluate validity and reliability, including exploratory and confirmatory factor analyses (chi-square/degree of freedom ratio, Goodness-of-Fit Index, Tucker-Lewis Index, Comparative Fit Index, Incremental Fit Index, root mean square error of approximation, standardised root mean square residual and internal consistency (Cronbach's alpha) and test-retest reliability (intraclass correlation coefficient and Pearson correlation). Results Exploratory and confirmatory factor analyses supported a one-factor structure for both forms, resulting in the final 11-item therapist form and 8-item client/caregiver form. The Home Programme Quality Evaluation tool demonstrated a good model fit for both forms (therapist form: chi(2)/df=2.66, goodness-of-fit index=0.909, Tucker-Lewis Index=0.886, standardised root mean square residual=0.060; client/caregiver form: chi(2)/df=3.37, goodness-of-fit index=0.929, Tucker-Lewis Index=0.950, standardised root mean square residual=0.027). Cronbach's alpha was 0.868 for the therapist form and 0.932 for the client/caregiver form. Test-retest reliability revealed strong positive correlations (r=0.994, P<0.001; r=0.998, P<0.001) and excellent stability over time (intraclass correlation coefficient=0.998 and 0.990, respectively). Conclusions The Home Programme Quality Evaluation's therapist and client/caregiver forms were found to have strong validity and reliability. The therapist form can enable therapists to monitor themselves, while the client and caregiver form can help clients or caregivers provide feedback on the home programme. Future studies can explore its application across different clinical populations and rehabilitation settings to further refine and optimise home-based interventions. Implications for practice For allied health professionals, the Home Programme Quality Evaluation tool serves as a practical tool for improving home programme design and implementation. By systematically assessing home programme quality, therapists can identify areas for improvement, ensuring that programmes are clear, feasible and well-integrated into the daily life of clients and their caregivers. Integrating the Home Programme Quality Evaluation tool into routine clinical practice can contribute to more effective rehabilitation outcomes, promoting structured, high-quality home programmes that align with the needs and capabilities of both clients and caregivers.Article Citation - WoS: 1Citation - Scopus: 1A Comparative Study of Biochemical, Antimicrobial Effects and Phytochemical Composition Analysis of Glycyrrhiza Glabra L. Varieties Root Extracts(Marmara University, 2025) Sen, Ali; Servı, Hüseyın; Barak, Timur Hakan; Tekin, Fethullah; Şener, Azize; Marzi, Mahdi; Gülmez, GizemPlants are the significant global interest as alternative treatment sources with their biologically activecompounds. This study compares the chemical composition and the antioxidant, antidiabetic, and antimicrobialproperties of ethanol extracts of G. glabra L. two different varieties from different regions. The phytochemicalcompositions was determined using GC-MS. Additionaly, total phenolic (TPC), flavonoid (TFC) and triterpene (TTC)contents were determined. Glycyrrhizic acid contents were analysed by HPLC. G. glabra var. glandulifera (GF1) showedthe highest antioxidant activity. All extracts had strong antidiabetic effects, besides GF1 showing the highest effect. TheMIC values was determined against 8 bacterial and 1 yeast strain and values ranged from 2.500 to 0.500; 2.500 to 0.714;2.500 to 0.714 for G. glabra var. glabra (GB), GF1, G. glabra var. glandulifera (GF2) respectively. Phytochemical studies haveshown that TPC was 100.60±5.06, 127.90±0.30, 69.01±0.30 mg GAE /g extract; TFC was 80.07±0.15, 25.35±0.0, 16.58±0.31mg KE/g and TTC was 217.30±6.05,172.40±2.17, 126.30±4.50 mg OE/g extract for GB, GF1, GF2, respectively. GF1 inparticular has the highest glycyrrhizic acid content. This study will contribute to the creation of new treatment strategiesand potential therapeutic agents in addition to the use of G. glabra L. in traditional treatments. Our study is also apreliminary study for future studies.Conference Object Psycho-Social Impact of the Disaster on Employees in Terms of Occupational Health and Safety: The Case of Turkey(Springer-Verlag Singapore Pte Ltd, 2025) Aytac, Sevinc Serpil; Akalp, Husre Gizem; Bilir, Burcu Ongen; Mamaci, MerveThe earthquakes that occurred in Maras, Turkey, on February 6, 2023, with intensities of 7.7 MW and 7.6 MW, deeply affected the lives of millions of people in economic, social and psychological terms within a few seconds and caused loss of life. The aim of this study is to examine the moderator role of disaster preparedness plans in workplaces on the relationship between post-traumatic stress levels and depression, anxiety, stress levels of people who are directly or indirectly exposed to these earthquakes and have an active work life. The data was obtained from a total of 206 blue-collar employees who were actively working in a private company and were directly and indirectly exposed to the effects of the earthquake. In data collection, demographic information form, The Impact of Event Scale-Revised (IES-R) and Depression Anxiety Stress Scale-21 (DASS-21) were used. According to the findings analyzed using structural equation modeling showed that having a disaster preparedness plan in workplaces weakens the strength of the relationship between post-traumatic stress level and depression, anxiety, stress levels.Article Relationship Between Resilience, Secondary Traumatic Stress and Work-Related Factors Among Mental Health Professionals(Kare Publ, 2025) Dikec, Gul; Tokatlıoglu, Tugba Sahın; Çetinkaya, Saadet; Yasar, SaadetObjectives: Resilience is the ability to maintain or rapidly recover mental health under stress. Mental health profes- sionals are often exposed to workplace stress through violence, emotional labor, restrictions, and traumatic stories. Secondary traumatic stress results from being affected by others’ traumatic experiences. Examining the relationship between resilience and secondary traumatic stress among mental health professionals is therefore essential. Methods: This descriptive study was conducted between February and April 2022. Data were collected using the Per- sonal Information Form, the Resilience Scale for Adults, and the Secondary Traumatic Stress Scale. Participants included 212 psychiatric and mental health nurses, 28 psychiatrists, 14 psychologists, and six social workers. Results: A significant positive relationship was found between resilience and secondary traumatic stress. The regres- sion model, including secondary traumatic stress, gender, educational status, willingness to work in mental health, job satisfaction, and unit of work, significantly predicted resilience. Conclusion: Secondary traumatic stress and work-related factors, such as willingness and satisfaction with working in mental health and the unit of work, were found to play an essential role in resilience. Institutional support and supervision may strengthen resilience, while reducing secondary traumatic stress can enhance motivation and well- being. Institutions are recommended to implement strategies that address these factors to improve both resilience and professional effectiveness.Article Evaluation of Dietary Habits and Related Parameters in a Group of Inpatients With Mental Disorders(Kare Publ, 2025) Dikec, Gul; Ata, Elvan Emıne; Özer, Duygu; Çalışkan, Mahinur Betül; Taliskan, Mahinur BetulObjectives: This study aimed to examine the dietary habits and related parameters of individuals with mental disorders. Methods: This study was descriptive and cross-sectional. The sample consisted of 94 individuals hospitalized in the psychiatric clinic of a hospital between June and December 2021. Data were collected using an information form cre- ated by the researchers. Results: Of the participants, 83% were male, and 25.5% had a chronic physical illness. The patients had a diagnosis of mental disorder for an average of 6.07 years. The most common side effect was an increase in appetite (36.4%). Additionally, 76.6% ate within 15 minutes, 93.6% consumed fish once a week or never, and 56.4% never exercised. In- dividuals who consumed home-cooked meals had lower BMI averages than those who consumed fast food. A weakly significant positive correlation was found between BMI and waist circumference averages and the duration of medica- tion use. Individuals with anxiety disorders had lower waist circumference, glucose, and LDL values compared to those with mood disorders. In contrast, individuals with psychotic disorders had significantly lower LDL levels than those diagnosed with mood disorders. Conclusion: Individuals with mental disorders were found to have inadequate and unbalanced nutrition, consuming diets rich in carbohydrates and low in protein, which negatively affected their parameters. Psychiatric nurses should evaluate the dietary habits of patients and provide counseling about healthy nutrition.