Structure Design for Ultrahigh Power Density Proton Exchange Membrane Fuel Cell.

Next-generation ultrahigh power density proton exchange membrane fuel cells rely not only on high-performance membrane electrode assembly (MEA) but also on an optimal cell structure. To this end, this work comprehensively investigates the cell performance under various structures, and it is revealed that there is unexploited performance improvement in structure design because its positive effect enhancing gas supply is often inhibited by worse proton/electron conduction. Utilizing fine channel/rib or the porous flow field is feasible to eliminate the gas diffusion layer (GDL) and hence increase the power density significantly due to the decrease of cell thickness and gas/electron transfer resistances.

Miltirone Attenuates Reactive Oxygen Species-Dependent Neuronal Apoptosis in MPP-Induced Cell Model of Parkinson's Disease Through Regulating the PI3K/Akt Pathway.

Miltirone is a phenanthrene-quinone derived from Salvia miltiorrhiza Bunge with anti-inflammatory and anti-oxidant effects. Our study aimed to explore the protective effect of miltirone on 1-methyl-4-phenylpyridinium (MPP)-induced cell model of Parkinson's disease (PD). PharmMapper database was employed to predict the targets of miltirone.

Effectiveness of Endovascular Therapy for Patients with Acute Ischemic Stroke: A Meta-Analysis of Randomized Controlled Trials.

Objective: This meta-analysis of published randomized controlled trials (RCTs) aimed to investigate the efficacy and safety of endovascular therapy (ET) for patients with acute ischemic stroke.

Methods: The summary relative risks (RRs) with corresponding 95% confidence intervals were calculated to measure the effectiveness of ET using a random-effects model.

Results: Thirteen RCTs including 3408 patients were identified among 2851 initial electronic citations.

WITHDRAWN: Effectiveness of endovascular therapy for patients with acute ischemic stroke: A meta-analysis of randomized controlled trials.

This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.