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 NCO Historical Society is an online, central repository allowing free access to information and material relating to the US Army Noncommissioned Officer Corps.he NCO Historical Society is an online, central repository allowing free access to information and material relating to the US Army Noncommissioned Officer Corps.