This is a 2-month old female with a history of a hemangioma on her right buttock since 2 weeks of age. The lesion began as a small birthmark and has continued to grow, and is now ulcerated.

And there is also neijuan (內卷), or “involution,” a term used to describe the feeling of diminishing returns in China’s social contract. Neijuan is the Chinese term for “involution,” a concept from ...

College of Materials, Institute of Artificial Intelligence, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, iChEM, Fujian Key Laboratory of ...