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 Usos as Tag Team Champions on September 16, 2014. The Usos (born August 22, 1985) are a professional wrestling tag team consisting of real-life twin brothers Jimmy and Jey Uso. They are signed to the WWE and are the current WWE Tag Team Championship in their second reign. The pair are managed by Naomi, the wife of Jimmy. They were formerly managed by Tamina Snuka.