Transition-sentences bring out the logical relation between ideas. You want your paper to read like a continuous argument which good transitions help to facilitate. Words like however, so, additionally do indicate a logical relation between paragraphs, but they are weak. A strong transition makes the relation explicit.
segregation. n. 1. the act of segregating or state of being segregated. 2. (Sociology) sociol the practice or policy of creating separate facilities within the same society for the use of a minority group. 3. (Genetics) genetics the separation at meiosis of the two members of any pair of alleles into separate gametes.
the spatial separation of a RACE, CLASS OR ETHNIC GROUP by discriminatory means. Racial segregation can be enforced by law, as in the southern US until the 1950s, or in the system of APARTHEID in South Africa.