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.
Introduction. The ratification of the 18th Amendment to the U.S. Constitutionâwhich banned the manufacture, transportation and sale of intoxicating liquorsâushered in a period in American history known as Prohibition.DRâs victory meant the end for Prohibition, and in February 1933 Congress adopted a resolution proposing a 21st Amendment to the Constitution that would repeal the 18th. The amendment was submitted to the states, and in December 1933 Utah provided the 36th and final necessary vote for ratification.