BOSTON (AP) – Racially-charged protests at the University of Missouri have energized students at other colleges to push for better treatment of black students.

Missouri’s president resigned Monday after protesters accused him of ignoring racial attacks on students.

At Yale, Michigan and other schools dealing with racial tensions, students say the Missouri case has emboldened them to take a harder line against their own administrators. It also has inspired students at more than 20 colleges to plan solidarity demonstrations this week. Some students say they’re planning to issue demands over racial matters.

The Missouri case is bringing attention to issues that have been simmering amid a national discussion of race relations in America. Many students have said colleges can be inhospitable to black students, calling for more diversity among students and faculty.