Yalova University

• A multi-objective framework optimizes a hybrid PV-Wind-Hydrogen-Battery microgrid. • System design targets near-zero Loss of Power Supply Probability for EV charging. • Hybrid storage (Battery/H2) is proven essential for high reliability and resilience. • Comparative analysis reveals distinct optimal designs for Egypt and Turkey contexts. • Turkey achieves a lower LCOE ($0.0173/kWh) due to balanced wind and solar resources. The rapid electrification of transport demands EV charging stations supplied by clean, reliable power. This paper presents an optimal sizing framework for an off-grid hybrid renewable microgrid combining photovoltaic arrays, wind turbines, battery energy storage (BESS), and hydrogen energy storage (HESS) to achieve zero loss of power supply probability (LPSP = 0). A four-objective Indicator-Based Evolutionary Algorithm (IBEA) is used to minimize levelized cost of energy (LCOE), curtailment ratio (CR), and LPSP while maximizing renewable fraction (RF). The method is tested in two locations: Attaka, Suez Governorate (Egypt) and Yalova Province (Türkiye), quantifying how climate and finance affect sizing and cost. Türkiye attains a lower LCOE of $0.0173/kWh with RF = 53.03% and CR = 17.11%, versus Egypt's $0.0261/kWh, RF = 50.35%, and CR = 27.67%—a 51.3% cost advantage driven by balanced solar-wind resources and higher EV demand. Egypt requires substantially larger BESS capacity (227 units vs. 34) to manage solar variability due to its solar-dominant resource profile. Sensitivity analysis reveals that discount and inflation rates dominate LCOE variation (±18–23% impact), while wind speed and load demand drive operational performance (±15–18% impact). Critical break-even thresholds are 47.5–50% (Türkiye) and 27.75–30% (Egypt), indicating Egypt's greater financial fragility. All designs satisfy the strict zero-LPSP constraint (≤0.001%), confirming the effectiveness of coordinated battery–hydrogen storage for reliable, cost-effective EV charging across diverse climatic and economic contexts.

The emergence of the coronavirus disease 2019 (COVID-19) pandemic led to numerous changes worldwide. Due to restrictive measures, hospital admission patterns changed in child and adolescent psychiatry, as in all other medical specialties. Although there are studies investigating the impact of the COVID-19 pandemic on mental health, research examining the reasons for hospital admissions and changing trends among children and adolescents remains limited. This study used data from the hospital information system of a university hospital and included patients aged 0-18 years. Data were analyzed across three periods: one year before the pandemic, one year during the pandemic, and one year after the complete lifting of all COVID-19-related restrictions. All 10th revision of the International Classification of Diseases "F" diagnostic codes were included in the analysis. A total of 7,500 unique admissions were included. Diagnostic distributions differed significantly across periods (p<0.001). The leading causes of admission were attention-deficit/hyperactivity disorder (23.5%, n=1,766), psychiatric evaluation (16.3%, n=1,223), and childhood- and adolescent-onset disorders (13.6%, n=1,022). The diagnosis of other childhood- and adolescent-onset behavioral and emotional disorders (F98) showed significant changes in the pre-pandemic period and as a secondary diagnosis post-pandemic. Changes in hospital admissions during the pandemic, especially for neurodevelopmental and severe mental disorders (e.g., autism), suggest stable overall admission rates but a possible increase in externalizing problems. It was suggested that the pandemic did not directly increase psychiatric disorders in children and adolescents but was associated with an increase in externalizing problems.

The rapid and free movement of goods, capital, services and people, as well as major advances in technology and communication accelerated globalization. However, the return to protective models in the economy, the increase in economic sanctions, trade wars and the rise of tariffs and asymmetric threats have sped up “deglobalization”. Accordingly, the aim of the study is to reveal how the Turkic states can ensure their common interests through energy and transportation corridors in an era of increasingly weakening globalization. The main findings of the study are that it is vital for them to act together to develop a multifaceted foreign policy to access energy and goods trade opportunities beyond geographical borders, strengthen relations with the EU, and align the interests of regional actors with those of the Turkish Union.

Çalışma Z kuşağı temsilcisi üniversite öğrencilerinin aşırı izleme kavramına bakış açılarını belirlemek ve kavramı tercih etmelerindeki temel sebepleri ortaya koymak amacıyla hazırlanmıştır. Odak Grup Görüşmesi yönteminin kullanıldığı çalışmanın örneklemi Yalova Üniversitesi İnsan ve Toplum Bilimleri Fakültesi Yeni Medya ve İletişim ve Psikoloji Bölümleri ile aynı üniversitenin Sağlık Bilimleri Fakültesi Fizyoterapi ve Rehabilitasyon Bölümü 4. Sınıf öğrencilerinden oluşmaktadır. Çalışmada öğrencilerin cevapları doğrultusunda 5 tema oluşturulmuştur. Bunlar seçim ve kontrol özgürlüğü, kesintisiz izleme ve zamandan tasarruf, ulaşılabilirlik, dikkat dağınıklığı ve ekran bağımlılığı, aşırı tüketimdir. İlk üç temaya verilen yanıtlarda aşırı izlemenin avantaj ve konfor alanı oluşturarak izleyici alışkanlıklarını değiştirdiği vurgulanmıştır. Son iki temada ise aşırı izlemenin sorunlu yönlerine dikkat çekilmiştir. Katılımcılar aşırı izleme vasıtasıyla izleyicilerin tüketim odaklı düşünen, fizyolojik ve psikolojik sorunlar yaşayan, doyumsuzlukla karşı karşıya kalan kişilere dönüşebileceğini ifade etmişlerdir.

Amaç: Bu derleme çalışmasının amacı, masaj uygulamalarının sporcularda toparlanma ve performans üzerine olan akut ve kronik etkilerini incelemeyi amaçlamıştır.Gereç ve Yöntem: Bir manuel terapi yöntemi olan masajın sporcular üzerindeki toparlanma ve performansa olan katkısını incelemek için Google Scholar, PubMed ve Web of Science veri tabanları tarandı. Belirlenen anahtar kelimeler uygun şekilde arama bölümüne yazılarak ve kombine edilerek araştırıldı. Yapılan bu derleme çalışmamızda 2015 yılından günümüze kadar olan tüm çalışmalar detaylı bir şekilde incelendi.Bulgular: Yapılan bu derleme çalışmasında masaj uygulamalarının sporcular üzerinde fiziksel, ruhsal, kardiyovasküler, nöromüsküler gibi yapılarda olumlu yönde etkiler meydana getirdiği, akut ve kronik dönemde ise toparlanma ve performansa pozitif yönde etkiler sağladığı görülmüştür.Sonuç: Masaj uygulamalarının, sporcularda kısa dönemde performans artışında katkısı halen tartışılmakta olup ama uzun dönemde kaslarda esneklik artışı ve mobilite gelişimi, düzenli masajın yaralanma riskini azaltabileceği ve kas onarım sürecini hızlandırdığı görülmüştür. Toparlanma sürecinin ise hem kısa dönemde gecikmiş başlangıçlı kas ağrısı olan (DOMS)’u azalttığı, kan akışını hızlandırarak laktik asidin vücuttan atılmasını sağladığı, kas gerginliğini ortadan kaldırdığı ve psikolojik rahatlama sağladığı, hem de uzun dönemde kronik ağrılarını azalttığı, doku esnekliğinde artış sağladığı, kas onarım süreçlerini hızlandırarak performansa olumlu katkılar verdiği görülmüştür. Bu kapsamda masaj uygulamalarının her sporcunun ihtiyacına yönelik uygulanması gerektiği, aynı zamanda diğer toparlanma yöntemleriyle birlikte uygulanması yönünde daha çok fayda sağlayacağı göz önünde bulundurulmalıdır.

Background: Trigeminal neuralgia (TN) is a severe neuropathic pain disorder primarily diagnosed on clinical grounds, and objective molecular biomarkers that could support diagnosis remain limited. Increasing evidence suggests that inflammation-apoptosis interactions contribute to TN pathophysiology. Methods: In this exploratory prospective case-control study, circulating apoptosis-related microRNAs (miRNAs) were analyzed in 30 patients with idiopathic TN and 20 healthy controls. Plasma miRNA expression levels were quantified using quantitative real-time polymerase chain reaction. Diagnostic performance of individual miRNAs was assessed using receiver operating characteristic (ROC) curve analysis. A multivariable logistic regression model integrating multiple miRNAs was constructed to evaluate combined diagnostic performance, with internal validation performed using five-fold cross-validation. Results: Circulating miRNA expression profiles differed between TN patients and controls. Among individual markers, hsa-miR-183-5p demonstrated the highest diagnostic accuracy (AUC = 0.72), followed by hsa-miR-23a-3p (AUC = 0.65). hsa-miR-223-3p showed reversed directionality (AUC = 0.28), consistent with lower expression in TN and high specificity but low sensitivity at the optimal threshold. The combined miRNA panel achieved an apparent AUC of 0.86, with a mean cross-validated AUC of 0.84 ± 0.12, suggesting improved discrimination over single miRNAs but with variability consistent with the limited sample size. Conclusions: Apoptosis-related circulating miRNAs exhibit distinct expression patterns in idiopathic TN. While individual miRNAs show modest diagnostic performance, integration into a multi-miRNA panel improved discrimination between TN patients and healthy controls in this pilot dataset. These findings support the potential of apoptosis-based miRNA signatures as candidate minimally invasive biomarkers for TN, warranting further validation in larger, independent cohorts, ideally including clinically relevant disease-control facial pain conditions.

Kepemimpinan transformasional kepala sekolah di SMP Negeri 1 Jaro menjadi motor penggerak utama dalam mengintegrasikan kearifan lokal "Membawa Pahindai" ke dalam lingkungan sekolah. Melalui keteladanan dan visi yang kuat, tradisi ini berhasil ditransformasikan menjadi instrumen pedagogis yang efektif untuk menanamkan nilai empati, solidaritas, dan tanggung jawab sosial pada siswa. Keberhasilan program ini membuktikan bahwa pendidikan karakter berbasis budaya lokal mampu mengubah kebijakan formal menjadi gerakan moral yang organik dan berkelanjutan bagi seluruh warga sekolah di tengah tantangan globalisasi.

Abstract Recent studies on nanoscale thermal structures have partially examined the combined influence of auxetic cores, nonlocal effects, and functionally graded (FG) face layers in doubly curved configurations. This paper analyzes the thermal buckling of doubly-curved functionally graded (FG) sandwich nanoplates with a re-entrant auxetic core using a nonlocal strain-gradient and higher-order shear deformation framework solved via Navier’s method. The model captures curvature, gradation, and nanoscale effects under SSSS and CCCC boundaries. Reducing the core thickness increases the critical buckling temperature from 1304 to 1596 K (22%), while curvature increase affects the dimensionless buckling load by 170%. Enlarging auxetic-cell dimensions enhances stability by 35–40%, whereas higher gradation lowers it by 43%. The nonlocal parameter softens the response (89% decrease), while the strain-gradient parameter hardens it (228% increase). These results show the coupling among curvature, gradation, and auxetic geometry, offering a nanoscale model for lightweight, thermally stable auxetic–FG nanostructures used in aerospace and MEMS applications.

This paper examines the influence of key economic variables—gross domestic product (GDP), foreign direct investment (FDI), environmental tax revenues (ETR), and natural resource rents (NRR)—on progress toward the Sustainable Development Goals (SDGs) in Sub-Saharan Africa (SSA) for the period 2010–2023. To reflect the complex and multidimensional nature of sustainability, financial development (FD) and institutional quality (IQ) are included as control variables. Financial development (FD) and institutional quality (IQ) are included as control variables to capture the complex nature of sustainability. The empirical analysis employs fixed-effects panel models with Driscoll–Kraay standard errors to account for heteroscedasticity, autocorrelation, and cross-sectional dependence. To address potential endogeneity and dynamic relationships, the two-step system Generalized Method of Moments (System GMM) estimator is applied as a robustness check. The results indicate that GDP, ETR, and FD have statistically significant positive effects on overall SDG performance, while FDI inflows, NRR, and weak IQ exert substantial adverse impacts. Disaggregated findings show that GDP enhances progress on social and economic goals, but is insufficient to address environmental and institutional dimensions. ETR contributes positively to climate action, industrial development, and well-being, but negatively affects SDG 15 (life on land). FDI and NRR are associated with negative externalities, supporting the pollution haven and resource curse hypotheses. This paper is the first to assess the impact of these variables across all 17 SDGs in SSA, offering new insights into the region’s development dynamics. It provides critical implications for designing integrated policy strategies aimed at fostering inclusive growth, environmental sustainability, and institutional reform in alignment with the 2030 Agenda.