The Census Bureau can also provide statisics and demographics cor the years 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009 on their website.
dopamine. n. 1. (Biochemistry) a chemical found in the brain that acts as a neurotransmitter and is an intermediate compound in the synthesis of noradrenaline.oun. 1. dopamine-a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension.
L-DOPA (/ËÉlËdoÊpÉ/ or /ËlÉvoÊËdoÊpÉ/) (alt., L-3,4-dihydroxyphenylalanine) is a chemical that is made and used as part of the normal biology of humans, some animals and plants.Some animals and humans make it via biosynthesis from the amino acid L-tyrosine.DOPA is used to increase dopamine concentrations in the treatment of Parkinson's disease and dopamine-responsive dystonia. This treatment was made practical and proven clinically by George Cotzias and his coworkers, for which they won the 1969 Lasker Prize.