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Superconducting Sn-Intercalated TaSe <sub>2</sub> : Structural Diversity Obscured by Routine Characterization Techniques
Scrotal temperature change during running in naked humans
Abstract Male reproductive organs are functionally affected by high body temperature. This study aimed to clarify the thermoregulation mechanisms of the human scrotum during running, and experiments were conducted to investigate temperature changes in the whole body and the scrotum. Eleven male long-distance runners performed treadmill running at 60% $$\:{\dot{\text{V}}}_{{\text{O}}_{\text{2max}}}$$ for 60 min in an indoor environment at 27 °C and 40% relative humidity. Immediately after the start of the run, the skin temperatures in areas other than the scrotum decreased or showed a tendency to decrease. In contrast, the scrotal temperature increased immediately after the start of the run. After the end of the run, the scrotal temperature decreased, whereas the skin temperatures in other body parts increased. An increase in scrotal temperature immediately after the start of the run was observed even in the situation where the scrotum was not affected by heating due to contact with the thighs. A possible explanation for this phenomenon is that the scrotum may have been elevated with the contraction of the dartos muscle and the cremaster muscle as a result of increased sympathetic nerve activity. Additionally, it cannot be ruled out that a specific vasodilation mechanism could play a role in this occurrence.
Analysis of the development trend of Chinese seafood imports from Southeast Asia after the Fukushima-Daiichi radioactive treated water discharge from Japan
Japan’s decision to discharge the Fukushima-Daiichi radioactive treated water into the Pacific Ocean has drawn widespread international concern regarding radioactive contamination of seafood and its impact on the marine ecosystem and human health. China’s seafood import trade is confronted with a potentially significant threat. In the favorable circumstances created by China’s suspension of seafood imports from Japan, This article analyzes the impact of Japan’s radioactive treated water discharge on seafood safety and human health, as well as the importance of the Chinese market in the international trade of seafood, and analyzes the seafood export data from Southeast Asian countries to China from 2018 to 2024. A significant increase in seafood exports from countries such as Indonesia, Myanmar, and the Philippines to China was observed. Conversely, there has been a notable decline in the export volumes from Vietnam and Thailand. This paper proposes some proactive strategies for Southeast Asian seafood exports to China, including actively familiarizing with China’s import regulations and standards, optimizing export strategies, cultivating a positive and favorable product image, aligning with the needs of Chinese enterprises, and ensuring food safety.
Topological Derivative Strategy for Large-Pore Three-Dimensional Covalent Organic Frameworks
Enhancing digital twin performance through optimizing graph reduction of finite element models
Abstract This research compares Graph Neural Networks reduction techniques for computational modeling in structural engineering. The proposed Finite Element Shape Logic Graph technology serves as a benchmark, capturing intricate details through fully connected logic graphs derived from Finite Element Models. Multiple graph reduction methods are introduced, each addressing computational efficiency: shortest path connectivity, Laplacian Matrix for Dimensionality Reduction, and an approach exploiting graph sparsity. This research contributes to structural engineering and offers insight for diverse applications in the evolving landscape of digital twins, particularly within the specific context of graph optimization and the efficiency of physical neural networks. Our proposed techniques are tested on datasets consisting of four different finite element models. Our study suggests that, while the shortest path method is a promising starting point for graph reduction in mechanical system modeling, leveraging Laplacian spectral reduction techniques is essential for achieving optimal solutions, particularly for larger finite element models. This approach served as the basis for the development of digital twins of mechanical structures, ensuring accurate representation and efficient analysis of complex engineering systems.
Chaos theory modeling improves olecranodiaphyseal angle prediction from proximal ulnar dorsal angulation in healthy elbows
Adversarial susceptibility analysis for water quality prediction models
Magnetic Ground State Discrimination of a Polyradical Nanographene Using Nickelocene-Functionalized Tips
Combining deep learning and microfluidics for fast and noninvasive sorting of zebrafish embryo
Catalytic Enantioselective Diels–Alder Reaction of Dienes with Acyclic and α,β- and β,β-Disubstituted Enones
Sustainable textile wastewater remediation using nano zerovalent aluminum for organic removal and pathogen inactivation
Abstract This study addresses the critical textile wastewater treatment gap by developing nano zerovalent aluminum (nZVAl) as a dual-functional solution for simultaneous organic degradation and pathogen inactivation. The nanoparticles were characterized, confirming the formation of nZVAl with an average diameter of 40 nm. Using regression analysis, the study assessed the influence of operational conditions, showing that nZVAl achieved up to 78% COD degradation and 68% color removal under optimal conditions: pH 8, a dosage of 0.6 g/L, a contact time of 60 min, and stirring at 150 rpm at room temperature. The RSM analysis revealed a strong correlation between predicted and experimental results, with a coefficient of determination (R 2 ) of 0.974, underscoring the model’s reliability. Furthermore, the antibacterial efficacy of nZVAl was evaluated against common pathogenic bacterial strains found in textile effluents, including Staphylococcus aureus, Bacillus subtilis, Klebsiella pneumoniae, and Pseudomonas aeruginosa. The minimum inhibitory concentrations (MIC) for these bacteria were determined to be 1500, 2000, 2500, and 2500 µg/L, respectively, achieving a 99% reduction in total bacterial counts after 8 h of treatment. Economic analysis revealed a competitive operational cost of $9.84 ± 1.76/m 3 , 35% lower than Fenton systems, with scalability validated in real effluent treatment. The work’s novelty lies in its mechanistic integration of advanced oxidation processes (AOPs) and antibacterial action, compliance with regulatory standards (Egyptian Ministerial Decree No. 44/2000), and pilot-scale industrial cost model, offering a sustainable alternative for the global textile wastewater market.