Valentine's Day friend"), which is a game similar to the Christmas tradition of Secret Santa. In Brazil, the "Dia dos Namorados" (lit. "Lovers' Day", or "Boyfriends'/Girlfriends' Day") is celebrated on June 12, probably because that is the day before Saint Anthony's day, known there as the "marriage saint", when traditionally many single women perform popular rituals, called "simpatias", in order to find a good husband or boyfriend. Couples exchange gifts, chocolates, cards, and flower bouquets. The February 14 Valentine's Day is not celebrated at all because it usually falls too little before or too little after the Brazilian Carnival — that can
Joan S. Valentine in Inorganic Chemistry from Princeton University in 1971. In 1972, she moved to Rutgers University where she served as Assistant, Associate and Professor of Chemistry. In 1980, she moved to UCLA and became a Professor in 1981. From 1991 to 1994, she also served as Departmental Vice Chair for Research and Administration. From 1989 to 1995, she was the Associate Editor for the journal "Inorganic Chemistry". Valentine served as Director of the UCLA Chemistry-Biology Interface Predoctoral Training Program from 1993 to 2001. Joan S. Valentine Joan Selverstone Valentine (born 1945) is a biological inorganic chemist and biochemist. Valentine's current work