Fig. 1. Given (a) the scanned face model of a subject, we develop an optimization-based approach to design (b&c) a PAP mask cushion that fits the face model. (d) The designed mask cushion is ...

The Washington Post is providing this news free to all readers as a public service. Follow this story and more by signing up for health, science, and environment email alerts. On Friday, President ...

Katie covered all things how-to at CNET, with a focus on Social Security and notable events. When she's not writing, she enjoys playing in golf scrambles, practicing yoga and spending time on the lake ...

Don’t go out without a mask, we’re urged. Our reporter tried making a few designs, and learned that how you treat your mask is important as well. WHYY reporter Sabrina Emms, wearing a mask made from a ...