Rack

A condition in children in which bones become soft and deformed because they don’t have enough calcium and phosphorus. It is caused…

The racemic form of a synthetic quinoxaline phenoxypropionic acid derivative with antineoplastic properties. XK469R selectively inhibits topoisomerase II by stabilizing the enzyme-DNA…

An equimolar mixture of two enantiomers. A racemate is optically inactive.

A social environmental measure of neighborhood race and/or ethnic residential segregation based on data from the U.S. Census Bureau.

A coded value specifying a self-declared racial origination, independent of ethnic origination.

An arbitrary classification of a taxonomic group that is a division of a species. It usually arises as a consequence of geographical…