updated 7:03 p.m. ET March 4, 2010
BERKELEY, Calif. - Students carried out raucous(乱哄哄的) rallies(集会) on college campuses nationwide Thursday in protests against deep education cuts that turned violent as demonstrators threw punches(拳头，重击) and ice chunks(大冰块) in Wisconsin(美国威斯康星州) and blocked university gates and smashed car windows in California.
At least 15 protesters were detained(拘留) by University of Wisconsin-Milwaukee(密尔沃基市) police after as many as 150 students gathered at the student union then moved to an administrative building to deliver petitions to the school chancellor(司法官).