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.
The USO offers programs and services that support the morale, welfare, social and entertainment needs of American service men and women and their families. The organization delivers its programs and services at more than 160 centers located worldwide.