We collected child welfare data in 21 states to report on the consequences of faulty drug tests for pregnant women, including referrals to law enforcement.

Abstract: In this article, a machine-learning-assisted antenna array isolation optimization method for bistatic in-band full-duplex (IBFD) communication systems based on a novel intelligent surface ...

Learn how to use a Mac with this beginner-friendly guide! From setup to shortcuts, master your Mac and boost productivity in ...