Positron emission tomography (PET) is a test that uses a special type of camera and a tracer (radioactive chemical) to look at organs in the body. The tracer usually is a special form of a substance (such as glucose) that collects in cells that are using a lot of energy, such as cancer cells.
The Eleventh Amendment was ratified in 1798 in order to overrule the Supreme Courtâs decision that a South Carolina citizen could sue the state of Georgia for money damages.he Eleventh Amendment was ratified in 1798 in order to overrule the Supreme Courtâs decision that a South Carolina citizen could sue the state of Georgia for money damages.
The Twelfth Amendment refined the process whereby a President and a Vice President are elected by the Electoral College. The amendment was proposed by the Congress on December 9, 1803, and was ratified by the requisite threeâfourths of state legislatures on June 15, 1804.aving been ratified by the requisite threeâfourths of the several states, there being 17 states in the Union at the time, the ratification of the Twelfth Amendment was completed.