[Efficacy and safety of magnesium sulfate in the treatment of adult patients with acute severe asthma: a Meta-analysis].

Objective: To evaluate the efficacy and safety of magnesium sulfate in the treatment of acute severe asthma in adults.

Methods: Literature searches were conducted on PubMed, Cochrane, CNKI, VIP and Wanfang databases to screen randomized controlled trial (RCT) of magnesium sulfate in the treatment of acute severe asthma in adults, starting from the establishment of the database and ending on May 22, 2024. The control group received conventional treatment.

The impact of different antibiotic injection regimens on patients with severe infections: A meta-analysis.

Severe infection is a critical health threat to humans, and antibiotic treatment is one of the main therapeutic approaches. Nevertheless, the efficacy of various antibiotic injection regimens in severe infection patients remains uncertain. This study aimed to comprehensively evaluate the impact of various antibiotic injection strategies on patients with severe infection through a meta-analysis.

Agaric-derived N-doped carbon nanorod arrays@nanosheet networks coupled with molybdenum carbide nanoparticles as highly efficient pH-universal hydrogen evolution electrocatalysts.

Non-precious, stable and efficient catalysts for the pH-universal hydrogen evolution reaction (HER) are highly desirable to meet the vast energy demands. Herein, we report a facile and scalable strategy using agaric as a precursor to construct a Mo2C-based HER electrocatalyst consisting of ultrafine Mo2C nanoparticles embedded within biomass-derived 3D N-doped carbon nanorod arrays@nanosheet networks (Mo2C@N-CANs). This electrocatalyst is highly active for the pH-universal hydrogen evolution reaction and requires overpotentials of only 82 mV, 100 mV and 350 mV to drive a current density of -10 mA cm-2 in acidic, alkaline and neutral media, exhibiting stable operation for 3000 cycles and 24 h long-term stability.

Tube-in-tube tin dioxide superstructures with enhanced lithium storage performance.

Novel tube-in-tube tin dioxide superstructures (TTS) were synthesized with α-Fe2O3 hollow prisms as templates. Due to the special tube-in-tube structure, the SnO2 TTS possess brilliant lithium storage properties.