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.
Four remaining states all eventually ratified the amendment -- except for Mississippi. Mississippi voted to ratify the amendment in 1995 but failed to make it official by notifying the U.S. Archivist.our remaining states all eventually ratified the amendment -- except for Mississippi. Mississippi voted to ratify the amendment in 1995 but failed to make it official by notifying the U.S. Archivist.