The U.S. customs agency is readying a system within 45 days to process refunds on U.S. President Donald Trump's tariffs that were struck down as illegal, a customs official said in a court filing on ...

Amanda Smith is a freelance journalist and writer. She reports on culture, society, human interest and technology. Her stories hold a mirror to society, reflecting both its malaise and its beauty.

The central pattern generator (CPG) networks that generate relatively simple motor outputs are ideal experimental models for circuit analysis. Locomotor CPGs in the ventral spinal cord function ...