Solar fuels design: Porous cathodes modeling for electrochemical carbon dioxide reduction in aqueous electrolytes.

The reduction of carbon dioxide emissions is crucial to reduce the atmospheric greenhouse effect, fighting climate change and global warming. Electrochemical CO reduction is one of the most promising carbon capture and utilization technologies, that can be powered by solar energy and used to make added-value chemicals and green fuels, providing grid-stability, energy security, and environmental benefits. A two-dimensional finite-elements model for porous electrodes was developed and validated against experimental data, allowing the design and performance improvement of a porous zinc cathode morphology and its operational conditions for an electrolyzer producing syngas via the co-electrolysis of CO and water.

Pediatric Voice Handicap Index (pVHI): Validation in European Portuguese Children.

Objectives: To determine reliability and validity of the European Portuguese pVHI version (pVHI-EP).

Study Design: Cross-sectional design.

Methods: The pVHI-EP and the talkative and global voice assessment scales were administered to the caregivers of children aged from 3 to 16 years old with and without dysphonia.