Alexandro Gradilla, chair and associate professor of Chicana and Chicano studies, will be featured in the “Soul Rebel Radio” show at 7 p.m. Friday, Sept. 4, on KPFK 90.7 FM. “Soul Rebel Radio” is a youth-based program covering current events through interviews, comedy and more. Gradilla will speak about the growing importance of ethnic studies in schools and universities on “The School of Life” segment. More information about the show is available at www.kpfk.org.