Clinical Significance. Measurement of the levels of bilirubin is used in the diagnosis and treatment of liver, hemolytic, hematologic, and metabolic disorders, including hepatitis and gall bladder obstruction. The assessment of direct bilirubin is helpful in the differentiation of hepatic disorders.
Rhythm and Blues Music: Overview. and blues (R&B), which combines soulful singing and a strong backbeat, was the most popular music created by and for African Americans between the end of World War II (1941-45) and the early 1960s. Such Georgia artists as Ray Charles, Little Richard, and James Brown rank among the most influential and innovative R&B performers.
4. Origins of Jazz. The origins of jazz music date back to the second half of the 19th century to New Orleans. New Orleans was the only place in America that allowed slaves to own drums and slaves who had come from West Africa had a strong tradition of music that they wanted to keep alive.