A comprehensive survey of the University of California System has found nearly one-quarter of students, staff and faculty members say they have felt intimidated or on the receiving end of hostile behavior while at the system's 10 campuses and major off-campus offices. UC officials said that the 93-question survey was part of an effort to promote respect and diversity following a series of charged incidents that included a noose and KKK hood being found at UC San Diego, complaints about bias from UCLA staff and ongoing tensions between palestinian supporters and Jewish students at several schools.