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Prognostic value of the ratio of globally sclerotic glomeruli in patients with idiopathic IgA nephropathy.
No full textHarşena Dağı Civarında Kaya Düşmeleri ve Süreksizlik Denetimli Yamaçların Kinematik Analizi
No full textInfluence of Form Factor on Microstructural, Mechanical and Electrical Properties of Electrically Conductive Polyvinylidene Fluoride Processed by Arburg Plastic Freeforming
No full textA Taylor Expansion Model Approach to Aluminide Evolution and High-Performance Surface Behavior in Hastelloy C-276
No full textThis study investigates the aluminizing kinetics of Hastelloy C276 alloy and evaluates how aluminizing enhances the surface properties of this superalloy. Pack aluminizing was performed on Hastelloy C276 specimens for 2, 4, and 6 h at 600°C, 650°C, and 700°C. SEM observations showed the formation of compact and dense aluminide coatings. According to the XRD analyses, two aluminide phases were indentified (Ni2Al3 and Ni3Al). Ni2Al3 predominates near the coating's outer surface, whereas Ni3Al is concentrated closer to the substrate/coating interface due to lower local aluminum activity. For kinetic studies, the Taylor expansion (TE) model was implemented under a transient diffusion regime to assess the Al diffusion coefficients in the bi-phased aluminized layer. The Al activation energy for Hastelloy C276 was deduced and confronted with the literature results. And the activation energy for Al diffusion in the Hastelloy C-276 alloy was calculated to be 65.26 kJ·mol−1 with the Taylor expansion (TE) model; furthermore, the mass gain per unit associated with the formation of aluminides coating was also evaluated. In the wear experiments performed, it was determined that the application of aluminizing increased the durability of the surfaces and reduced wear losses
O K-Riemann-Liouville Maclaurin-Type Inequalities for S-Convex Stochastic Processes
No full textIn this paper, we introduce a new class of stochastic fractional integrals, namely, the stochastic mean-square k-Riemann-Liouville fractional integrals, by combining elements of fractional calculus and stochastic analysis. We first establish the necessary theoretical framework by recalling fundamental concepts from both domains. A novel integral identity involving these operators is then derived, which serves as a key tool for our main results. Using this identity, we prove several k-fractional Maclaurin-type inequalities for differentiable S-convex stochastic processes. These inequalities extend classical deterministic results to the stochastic setting and generalize them via k-fractional operators, offering enhanced flexibility in modeling uncertainty and memory effects. The obtained results contribute to the growing theory of stochastic fractional analysis and provide new tools for the study of probabilistic bounds and convexity in random environments
Practices of Peace Journalism in Indonesian Media on the 2023-2024 Israeli-Palestinian Conflict: A Comparative Study of Kompas, Republika, and Detik 2024-2023:دراسة مقارنة بين صحف كومباس، وريبوبليكا، وديتيك ممارسات صحافة السلام في وسائل الإعلام الإندونيسية بشأن الصراع الإسرائيلي الفلسطيني
No full textObjectives: This study examines the implementation of peace journalism in 253 articles from three major Indonesian online media outlets: Kompas, Republika, and Detik, chosen for their distinct characteristics—Kompas for its journalistic integrity, Republika for its large Muslim readership, and Detik for its wide reach and real-time reporting. Methods: Using qualitative content analysis, this research interprets news narratives from articles selected between October 7, 2023, after Hamas' attack on Israel, and May 20, 2024, following the International Criminal Court’s arrest warrants for key figures. Keyword searches related to the Israel-Palestine war yielded 264,000 articles from Kompas, 240,000 from Republika, and 594,000 from Detik, filtered down to 86, 82, and 85 articles. Results: Kompas excelled in exploring conflict root causes, humanitarian reporting, and promoting non-violent solutions, adhering to seven of ten peace journalism principles. Detik focused on war consequences and public interest impacts, adhering to two principles. Republika shows a tendency to support Palestinians, especially resistance groups, which leads to a lack of application of other principles of peace journalism. The research also highlights Indonesia's strong political position in support of Palestine that likely influenced how these media framed their coverage. Conclusions: Kompas, Republika, and Detik approach the Israeli-Palestinian conflict with a commitment to objectivity and humanizing narratives, while maintaining a pro-Palestinian stance. This study underscores the value of diverse media perspectives in fostering empathetic public discourse, supporting peaceful conflict resolution
Boosting supercapacitor performance via flower-like Cu2XSnS4 (X = Mn, Co, Ni, Ba, Zn) chalcogenides: Solvothermal synthesis and charge storage behavior
No full textIn the present work, a series of Cu2XSnS4 (X = Mn, Co, Ni, Zn, Ba) quaternary chalcogenide phases were synthesized by a simple solvothermal method and evaluated as electrode materials in symmetric two-electrode supercapacitor cells. Structural and morphological analyses demonstrated the formation of flower-like crystalline structures, with significant variations in texture and surface area depending on the substituted metal. Among the synthesized samples, the Mn-substituted CMnTS electrode exhibited the highest specific capacitance of 386.0 F/g at a current density of 1.0 A/g and maintained 92 % of its initial capacity after 10,000 charge-discharge cycles. Electrochemical tests revealed that CMnTS stored charge predominantly through capacitive mechanisms, while the Zn-substituted sample exhibited diffusion-limited behavior. EPR analysis indicated the presence of paramagnetic species in CMnTS, which may contribute to its electrochemical performance. These findings highlight the critical role of metal substitution in tailoring the charge storage characteristics of quaternary chalcogenides and provide a promising approach for optimizing electrode materials
Furfurylamine‐Bonded Keto‐Oxime Modified Electrode for Determination of Nickel(II) Ion in Water
No full textABSTRACT In this study, a novel modified electrode was developed by incorporating furfurylamine keto‐oxime (FKO) as a functional compound for the sensitive electrochemical determination of Ni(II) ions. PPy and FKO–PPy modified electrodes were prepared using the cyclic voltammetry (CV) technique, while the determination of Ni(II) was carried out by differential pulse voltammetry employing PGE, PPy, and FKO–PPy electrodes. The experimental parameters influencing the electrode response, including the number of electropolymerization cycles, scan rate, and FKO concentration, were systematically optimized. Comparative DPV responses demonstrated that the FKO–PPy electrode exhibited the highest selectivity toward Ni(II) ions. A linear response was obtained in the Ni(II) concentration range of 2–10 ppm with a correlation coefficient of 0.9995, and the limit of detection was calculated as 0.378 ppm (S/N = 3). The applicability of the FKO–PPy electrode was further evaluated using deionized water, tap water, and wastewater samples, with the highest recovery values obtained in deionized water. In addition, interference studies indicated that the presence of common cations did not significantly affect the Ni(II) response of the FKO–PPy electrode.</jats:p
