Mudanya University Institutional Academic Archive System
Mudanya University's Dspace system is a platform that digitally stores and opens academic studies. Academic content such as articles, presentations, theses, books, and reports are included here. Dspace@Mudanya provides easy access, making it a valuable resource for researchers and students. It serves as a digital archive for Mudanya University's academic outputs, facilitates access to scientific information and supports its sharing. For more information and assistance, please contact us.
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Recent Submissions
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Evaluation of uniform diffraction behavior from circular apertures on opaque and perfectly conductive surfaces using BDW theories
(Emerald, 2026-02) Altınel, Mustafa; Yalçın, Uğur; 414019
This study presents a unified and comparative analysis of uniform diffraction fields generated by circular apertures on three canonical surface types: opaque, perfectly electric conductive (PEC) and perfectly magnetic conductive (PMC). This study aims to explore how these boundaries influence field uniformity and angular behavior under identical conditions.Design/methodology/approachThe classical boundary diffraction wave (BDW) theory is applied to the opaque case, and an extended BDW formulation is developed for PEC and PMC surfaces to account for reflective effects. Analytical expressions are derived, and numerical simulations are conducted to examine the impact of aperture size and observation distance.FindingsThe results reveal that PEC and PMC surfaces introduce significant modifications to the angular distribution of the diffracted field, including phase reversals and amplitude oscillations. The extended BDW model successfully predicts these behaviors, particularly near shadow boundaries and axial zones.Research limitations/implicationsThe study is limited to idealized geometries and monochromatic wave excitation. It does not yet consider material losses or complex aperture shapes. Future work may expand this framework to more realistic electromagnetic structures.Practical implicationsThe findings can help electromagnetic engineers optimize antenna design, stealth surfaces and metastructures by offering better control over field uniformity and diffraction behavior across different surface types.Social implicationsWhile the work is theoretical, it supports technological development in sectors like communication, defense and sensing, contributing indirectly to infrastructure reliability and performance.Originality/valueTo the best of the authors' knowledge, this is the first unified parametric study that simultaneously evaluates opaque, PEC and PMC surfaces using classical and extended BDW approaches. It introduces a novel high-frequency framework for comparing uniform diffraction field behavior across distinct boundary conditions.
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Future Protein Sources in Sports Nutrition: Sustainable Solutions
(Springer, 2026-02) Tuna, Tuğba; Ersoy, Nesli; 336342
Purpose of ReviewThis review evaluates the potential of alternative protein sources, including plant-based proteins, insect proteins, mycoproteins, microalgae, and cultured meat, in meeting the increasing demand for sustainable and functional protein solutions in sports nutrition.Recent FindingsStudies indicate that alternative protein sources provide significant environmental benefits, such as reduced greenhouse gas emissions and lower water use, while delivering essential nutrients to support athletic performance and recovery. Advances in technology and production methods have further enhanced their feasibility as replacements for conventional animal-based proteins.SummaryIntegrating alternative protein sources into sports nutrition offers a dual benefit: meeting athletes' dietary requirements and supporting global sustainability goals. These protein sources pave the way for innovative, environmentally conscious dietary practices in sports nutrition, marking a pivotal shift toward a more sustainable future.
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Enhanced EMI shielding of Ag–polymer composites via TiB2 reinforcement in the 2–4 GHz range
(Springer, 2026-02) Demirtaş, Tugay; Atıcı, Şeyma; Aydemir, Umut; Yiğit, Enes; 392813
Due to its exceptional electrical conductivity, high thermal stability, and mechanical hardness, titanium diboride (TiB2) has emerged as a critical reinforcement material for high performance electromagnetic interference (EMI) shielding. Despite its potential, achieving a synergistic balance between filler dispersion and high shielding efficiency within polymer matrices remains a significant challenge in current research. This study investigates the performance of composite coatings reinforced with TiB2, a conductive ceramic material, for EMI shielding applications in the 2-4 GHz frequency range. TiB2 is incorporated into a commercially available Ag polymer at various weight ratios (10-50 wt%), and the resulting composites are evaluated using a Vector Network Analyzer. The reflection (S-1(1)) and transmission (S-2(1)) parameters are measured to calculate the total shielding effectiveness, which reached a peak of approximately 45 dB at 2.2 GHz. These findings highlight the promise of TiB2-filled composites as effective EMI shielding materials for use in aerospace, defense, and healthcare applications. Future research will aim to optimize the filler composition and assess material stability under elevated temperatures.
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Obesity and Obesity-Related Hypertension in Northern Cyprus: Findings from a Population-Based Cross-Sectional Study
(Galenos, 2026-02) Berksel, Ersan; Özduran, Gülşen; 229345
BACKGROUND/AIMS
Obesity constitutes a chronic and multifactorial condition characterized by an excessive accumulation of adipose tissue and is linked to a wide range of comorbidities, including hypertension (HT). Its predominant cause is the disparity between caloric intake and the body’s energy utilization. As obesity rates persistently rise, the incidence of obesity-related conditions, particularly HT, is expected to increase. This study estimated the prevalence of general and abdominal obesity (AO) and obesity-related HT among adults in Northern Cyprus.
MATERIALS AND METHODS
In this cross-sectional observational study, data were collected between October 2023 and June 2024 from Turkish Cypriot adults aged 18-79 years residing in Northern Cyprus.
RESULTS
The population-level prevalences of general obesity, AO, and excess weight were 26.2%, 46.9%, and 63.2%, respectively. Obesity prevalence was higher in males (29.7%) than in females (23.1%), and excess weight affected 74.3% of males and 53.2% of females. AO was also more prevalent among males (49.6%) than among females (44.4%). The population-level prevalence of HT was 34.6% (36.1% in males, 33.1% in females). Among individuals with HT, 76.9% had obesity-related HT (77.6% among males and 76.1% among females).
CONCLUSION
Obesity and its associated HT are highly prevalent among adults in Northern Cyprus. With rising obesity rates, the burden of obesity-related conditions is likely to increase. Prevention strategies, alongside lifestyle interventions, anti-obesity pharmacotherapy, and metabolic surgery when appropriate, are essential for long-term control of weight and blood pressure.
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A qualitative examination of career adaptation of LGBT+ individuals
(Springer, 2026-02) Çohadar, Esra; Karacan Özdemir, Nurten; 392810
This study explores LGBT+ (Lesbian, Gay, Bisexual, Transgender, and other sexual and gender minority identities) individuals’ career adaptation processes through the career construction model of career construction theory. Employing a qualitative, phenomenological design, data were collected from 15 participants via snowball sampling using a personal information form and semistructured interviews. Content analysis revealed 14 themes and 31 categories across four dimensions: adaptivity, adaptability (concern, control, curiosity, confidence), adapting responses, and adaptation results. Participants reported challenges in career decision-making and exploration. Some preferred working in socially accepting countries. Coming out influenced the effectiveness of coping strategies in job search and the workplace.
