Roy Hargrove

Roy Anthony Hargrove (born October 16, 1969) is an American jazz trumpeter. He won worldwide notice after winning two Grammy Awards for differing types of music, in 1997 and in 2002. Hargrove has played primarily with jazz musicians including Wynton Marsalis and Herbie Hancock.

Hargrove was the bandleader of the progressive group The RH Factor, which combined elements of jazz, funk, hip-hop, soul, and gospel music. Its members have included Chalmers "Spanky" Alford, Pino Palladino, James Poyser, Jonathan Batiste and Bernard Wright.

Biography

Hargrove was born in Waco, Texas, United States, to parents who early in his childhood discovered his musical potential, and with lessons on the trumpet, was discovered as a potential jazz talent when trumpet player Wynton Marsalis visited his high school, Dallas's Booker T. Washington High School for the Performing and Visual Arts. One of his influences was saxophone player David "Fathead" Newman, who performed in Ray Charles' Band at Hargrove's junior high school.

Rh blood group system

The Rh blood group system (including the Rh factor) is one of thirty-five current human blood group systems. It is the most important blood group system after ABO. At present, the Rh blood group system consists of 50 defined blood-group antigens, among which the five antigens D, C, c, E, and e are the most important. The commonly used terms Rh factor, Rh positive and Rh negative refer to the D antigen only. Besides its role in blood transfusion, the Rh blood group system—specifically, the D antigen—is used to determine the risk of hemolytic disease of the newborn (or erythroblastosis fetalis) as prevention is the best approach to the management of this condition. As part of prenatal care, a blood test may be used to find out the blood type of a fetus. If the Rh antigen is lacking, the blood is called Rh-negative. If the antigen is present, it is called Rh-positive. When the mother is Rh-negative and the father is Rh-positive, the fetus can inherit the Rh factor from the father. This makes the fetus Rh-positive too. Problems can arise when the fetus’s blood has the Rh factor and the mother’s blood does not.