U.S. Justice Department: Does Neighborhood Watch reduce crime? Neighborhood Watch programs became popular in the 1970s and 1980s; by 2000, roughly 40% of the U.S. residential population was covered by such citizen crime-watching programs.
Definition of actuarial. 1  1 : of or relating to actuaries. 2  2 : relating to statistical calculation especially of life expectancy.
Actuator is a generic term used for any device that coverts any other energy to Mechanical movement. So in that sense it could include all Motors (rotating) all linear devices like linear motor, solenoids, servo drives anything. There are hydraulic actuators which can give very high force at very low speeds.