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 U.S. Attorney's Office (USAO) is the chief prosecutor for the United States in criminal law cases, and represents the United States in civil law cases as either the defendant or plaintiff, as appropriate (see generally 28 U.S.C. Â§ 547).