Atomically dispersed main group element single-atom catalysts (SACs) have recently attracted increasing attention in electrocatalysis. However, their performances acidic oxygen reduction reaction (ORR) remain unsatisfactory owing to the suboptimal coordination environment, limited mass transfer, and active site exposure. Herein, a series of p-block Sn SACs with hierarchical pore structures are ...

background: exercise has positive and negative effects on immune system. herein, we would like to investigate the effects of incremental aerobic training and fish oil supplementation on the plasma levels of crp, cpk and il-17 in trained mice. one of the major roles of immune system is to produce soluble or cellular components that provide the immunity against inflammatory agent. the purpose of ...

Given a two-generated group of prime-power order, we investigate the singularities origamis whose deck acts transitively and is isomorphic to given group. Geometric group-theoretic ideas are used classify possible strata, depending on order. We then show that for many interesting known families groups including all regular, or powerful ones, those maximal class, each admits only one stratum. Ho...