Management, Scripps Institution of Oceanography, and the School of Global Policy and Strategy (GPS) handle their own admissions. For Fall 2012, the UC San Diego School of Medicine offered admission to 5% of its applicants. Student life In all, the university offers classical orchestras, intramural sports, and over 550 student organizations. 38 national and local Greek organizations are hosted on campus, with fraternity and sorority members representing 20% of the student population. The university operates on an academic quarter system, with three primary quarters beginning in late September and ending in mid-June. 44% of undergraduate students receive federal Pell Grants. The undergraduate student body government is the Associated Students of the University of California, San Diego, organized as a cabinet and senate,ASUCSD Minutes, December 16, 1964 while graduate students are represented by the Graduate Student Association, a proportional representative body with membership depending on the number of students in each graduate department. Additionally, graduate students who serve as teaching assistants are represented by the UC-wide union of Academic Student Employees. Each of the seven residential colleges has its own student council as well. Most student media publications distributed on-campus are services provided and governed by ASUCSD, including Triton Television, the school's student run film studio, and the KSDT radio station. A notable exception is The Guardian, which is directly governed by the university's Student Affairs department. Price Center, often referred to as PC, is the main student hub and is located in the center of campus, just south of Geisel Library. The building houses multiple restaurants, the central bookstore, a movie theater, and office space for student organizations, organization advisers, and university faculty. A student referendum was passed in 2003 to expand the Price Center to nearly double its original size. The Price Center East expansion was officially opened to the public on May 19, 2008. There are also three campus centers that cultivate a sense of community among faculty, staff, and certain students: the Cross-Cultural Center, the Women's Center, and the LGBT Resource Center. UC San Diego was the last UC campus to have such centers. All three, especially the Cross-Cultural Center that was created first, were founded in the mid-1990s as a result of student movements that demanded change despite opposition by the campus administration. The Ché Café is a student worker cooperative and social center that is perhaps best known for its role as a venue for