This document discusses patterns of racial and ethnic relations, focusing on segregation, discrimination, prejudice, and structural violence. It defines segregation as separating people based on race or ethnicity through both de jure segregation enforced by law and de facto segregation in practice. Discrimination can be individual acts that harm members of subordinate groups or institutional practices with harmful effects. Prejudice involves negative generalizations about racial or ethnic groups, while structural violence refers to social structures that deprive individuals of opportunities through both individual and systemic means, with impacts lasting for generations.