ABCD Study - National Institute on Drug Abuse (NIDA) The Adolescent Brain Cognitive Development (ABCD) Study is the largest long-term study of brain and cognitive development in children across the United States
Simplify $ABCD + ABCD + ABCD + ABCD + ABCD$ Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
I HAVE A CARRIER INFINITY THERMOSTAT WITH abcd WIRING . . . - JustAnswer The 4 wire system (abcd) is set up as a communicating system The furnace, thermostat and ac talk to each with control signals and modulate operation in the most efficient manner possible You can remove the abcd and move to r,g,y,w,and c at both thermostat and furnace but it does "dumb" down the system