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.
Segregation is defined by the European Commission against Racism and Intolerance as the act by which a (natural or legal) person separates other persons on the basis of one of the enumerated grounds without an objective and reasonable justification, in conformity with the proposed definition of discrimination.