Lectures, music and performances are among the free events open to the public April 21-25 during the annual Asian Pacific Culture Week at the University of California, Davis. This year's theme is "Emerging from Silence, Creating a Voice." Highlights surrounding the student-organized event include: • Islam in Asia exhibit and discussion. 7 p.m. Tuesday, April 22, East Conference Room in the Memorial Union • "Showtime at the Main," with various live performances. 7 p.m. Wednesday, April 23, Main Theatre • Asian American Psychology, with guest Dr. Stanley Sue, head of the UC Davis Asian American studies program and director of a National Research Center program on Asian American mental health. Noon Thursday, April 24, in the East Conference Room of the Memorial Union • Culture Night, dance and musical performances will be featured during an evening cultural presentation by student groups. 7 p.m. Friday, April 25, Freeborn Hall