Complex sentence: A year later he was elected Academician-Secretary of the Department of Literature and Language Academy of Sciences of the USSR (from 1992-The Russian Academy of Sciences) and is a member of the Presidium of the Russian Academy of Sciences.
Split into simpler sentences: A year later he was elected Academician-Secretary of the Department of Literature and Language Academy of Sciences of the USSR (from 1992-The Russian Academy of Sciences). Is a member of the Presidium of the Russian Academy of Sciences.