Catalysis, nanoparticles: hydrogen peroxidePhoto courtesy of Dr. David J. Willock, Cardiff Universityin chemistry, the modification of the rate of a chemical reaction, usually an acceleration, by addition of a substance not consumed during the reaction.
The United Service Organizations Inc. (USO Show) is a nonprofit organization that provides programs, services and live entertainment to United States service members and their families.
NATO (North Atlantic Treaty Organization) and SEATO (SouthEast Asia  Treaty Organization) are collective defense organizations. Their  members pledge to protect any other meâ¦mber in case of attack. In  general, such organizations are created to discourage other  countries from attacking any one member country.