An enzyme is a catalyst that helps to speed up the rate of a reaction by lowering the activation energy of a reaction. There are many enzymes in the human body, without which lots of important reactions would never take place. Cellular respiration is one example of a reaction that is catalysed by enzymes.
Sullivan Act Tim Sullivan, a major Irish criminal passed the Sullivan Act in 1911 to help his constituents rob strangers or to help them against Italian incomers. That is the crux of story that goes with a very early gun control law.
Under the First Amendment of the United States Constitution, as set forth by the U.S. Supreme Court in the 1964 Case, New York Times v Sullivan, in which a public figure attempts to bring an action for defamation, the public figure must prove an additional element: That the statement was made with actual malice.