These results agree with the proposed ping-pong mechanism in which serine binding and release of water are followed by homocysteine binding and release of cystathionine.
Early rackets were often pieces of parchment stretched upon a frame, and the sound generated in play gave the game its first nicknames of wiff-waff and ping-pong.
Every residence hall is equipped with at least one communal lounge area (with a big-screen television, sometimes a ping-pong table, pianos, etc.) and kitchen area.
