Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Clubbed nails have a distinctive curvature and softness. This nail change can be harmless, but it may be a sign of lung or heart disease. Seeking medical care if your nails change shape or become ...

From overfilling to the wrong shape, most brow routines need a refresh. This video shows how to bring your brow game up to date with subtle corrections and smart tools that make a visible difference.

I have struggled with my nails for my whole life. Aside from being an avid nail biter for as long as I can remember, my natural nails are extremely weak and bendy. These two factors meant that I ...