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 Amendment was the first to set a time delay before it would take effect following ratification, and the first to set a time limit for its ratification by the states.Its ratification was certified on January 16, 1919, with the amendment taking effect on January 17, 1920.he Eighteenth Amendment was the result of decades of effort by the temperance movement in the United States and at the time was generally considered a progressive amendment.