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.
A. New Orleans via Africa and Europe. Jazz was born in New Orleans about 100 years ago (early 20th century), but its roots can be found in the musical traditions of both Africa and Europe. In fact, some people say that jazz is a union of African and European music. 1  From African music, jazz got its: 2  rhythm and feel.  3 blues quality. 4  tradition of playing an instrument in your own expressive way, making it an extension of your own human voice. 5  From European music, jazz got its: