Proton Transport Functionality-Enabled Carbon Support for Improved Fuel Cell Performance and Durability.

A novel Monarch carbon material with proton conduction capability due to the presence of sulfone/sulfoxide/sulfonic groups on the surface was evaluated as a potential cathode catalyst support to enable an electrode design with low ionomer content in proton exchange membrane (PEM) fuel cells. X-ray photoelectron spectroscopy of the carbon support confirmed the sulfonic acid functionality, while dynamic vapor sorption measurements proved higher water uptake. Electrochemical impedance spectroscopy of the PtCo/Monarch electrodes showed higher proton conductivity than state-of-the-art PtCo/C with decreasing ionomer to carbon (I/C) content due to the presence of sulfonic acid functional groups on the carbon support surface.

e-Thrombosis: occupation-specific hazard in electronic information and technology professionals.

There are many known risk factors for the development of deep vein thrombosis (DVT) and pulmonary thromboembolism (PTE). However, a recently observed risk factor is prolonged sitting (or immobility) for occupational dispensation. Some occupations, especially electronic information technology (IT) professionals, computer gamers, programmers, etc.

Overreliance on BMI and Delayed Care for Patients With Higher BMI and Disordered Eating.

Diagnostic utility of weight and body mass index (BMI) is widely overestimated. Although both are clinically relevant, their use as universal measures of health and wellness can result in missed or incomplete diagnoses, which are neglected sources of iatrogenic harm. This article problematizes overreliance on weight and BMI in assessing disordered eating behaviors and suggests how physicians can prevent harmful delays in indicated interventions.