Next week

NEWS Patents and ethics - who owns stem-cell research?

FEATURES Fay Weldon and Elaine Showalter go head to head on gender politics

BOOKS How has email changed the English language? John Naughton reviews David Crystal's Language and the Internet Focus: philosophy, social sciences and humanities journals

TEACHING Togetherness: when doctors and nurses can share a problem

RESEARCH Removing randomness from drug discovery; Cutting edge: Russian crime and Afghanistan