Associations between meeting 24h movement behavior guidelines and cognition, gray matter volume, and academic performance in children and adolescents: a systematic review.

Background: 24-h movement behaviors have a close relationship with children and adolescents' cognition, gray matter volume, and academic performance. This systematic review aims to precisely explore the associations between meeting different combinations of guidelines and the aforementioned indicators, in order to better serve public health policy.

Methods: Computer retrieval was conducted on CNKI, Web of Science, PubMed, SPORT Discus and Cochrane library databases.

The effect of population density on the phenotype, metabolic and immunological adaptations in the cuticle of Spodoptera litura larvae.

Background: Species that experience outbreaks and those that display density-dependent phase polymorphism demonstrate density-dependent prophylaxis (DDP) by increasing their immune investment in response to increasing densities. Despite this phenomenon, the mechanisms of DDP remain largely unexplored.

Results: Here, we showed that Spodoptera litura exhibited heightened cuticular melanization and enhanced cuticular immune responses when reared at higher population density.

Enhanced Cooperative Generalized Compressive Strain and Electronic Structure Engineering in W-NiN for Efficient Hydrazine Oxidation Facilitating H Production.

As promising bifunctional electrocatalysts, transition metal nitrides are expected to achieve an efficient hydrazine oxidation reaction (HzOR) by fine-tuning electronic structure via strain engineering, thereby facilitating hydrogen production. However, understanding the correlation between strain-induced atomic microenvironments and reactivity remains challenging. Herein, a generalized compressive strained W-NiN catalyst is developed to create a surface with enriched electronic states that optimize intermediate binding and activate both water and NH.