A waist-twisting machine includes a post, a fixing base, a moving mechanism, a hoop body and a hull. The invention is also directed to the use of the catalyst composition in the polymerization of olefin. The universal antenna and receiver system provide selected viewing content for distribution throughout the vehicle information system and presentation via one or more passenger interfaces. 9; a second oxygen-deficient tantalum oxide layer formed on the first oxygen-deficient tantalum oxide layer and having a composition represented by TaOy where 2.