Structural Engineering of Ultrathin ReS on Hierarchically Architectured Graphene for Enhanced Oxygen Reduction.

Herein, binary heteronanosheets made of ultrathin ReS nanosheets and reduced graphene oxide (RGO) with either a two-dimensional (2D) "sheet-on-sheet" architecture (2D ReS/RGO) or a three-dimensional hierarchical structure (3D ReS/RGO) are constructed through rational structure-engineering strategies. In the resultant 3D ReS/RGO heteronanosheets, the ultrathin ReS nanosheets are bridged on the RGO surface through Re-O bonds in a vertically oriented manner, which endows the heteronanosheets with open frameworks and a hierarchical porous structure. In sharp contrast to the 2D ReS/RGO, the 3D ReS/RGO heteronanosheets are featured with abundant active sites and channels for efficient electrolyte ions transport.

Addition to inhaled corticosteroids of leukotriene receptor antagonists versus theophylline for symptomatic asthma: a meta-analysis.

Background: Inhaled corticosteroids (ICSs) are widely used in combination with second controller medications in the management of asthma in adults and children. There lacks a systematic comparison between addition of leukotriene receptor antagonists (LTRAs) and theophylline to ICS. The purpose of this meta-analysis was to evaluate the difference of the efficacy and safety profile of adding either LTRAs or theophylline to ICS in adults and children with symptomatic asthma.

Levofloxacin and proton pump inhibitor-based triple therapy versus standard triple first-line therapy for Helicobacter pylori eradication.

Background: Standard triple therapy for Helicobacter pylori infection fails in up to one quarter of patients. Levofloxacin-based triple therapy may be more efficacious.

Objective: The aim of this paper was to compare levofloxacin and proton pump inhibitor-based triple therapy with standard triple therapy for H.