Original sentence: He worked at Moscow State University and the Steklov Institute of Mathematics and now is at the University of Newcastle, Australia.Wadim Zudilin is a Russian number theorist who is active in studying zeta constants
Edited sentence: He worked at Moscow State University and the Steklov Institute of Mathematics and now works at the University of Newcastle, Australia.Wadim Zudilin is a Russian number theorist who is active in studying hypergeometric functions and zeta constants