Complex sentence: Jadwiga Staniszkis studied sociology at the Warsaw University Faculty of Philosophy, in 1971 obtained a PhD (her dissertation was named in 1973 as the best dissertation of the year), in 1978 she got habilitation of humanistics, in the division of sociology.
Split into simpler sentences: Jadwiga Staniszkis studied sociology at the Warsaw University Faculty of Philosophy, obtaining a PhD in 1971 (her dissertation was named in 1973 as the best dissertation of the year). In 1978 she got a habilitation of humanistics, in the division of sociology.