A hypothetical pathway from the RNA to the DNA world.

If the DNA world was preceded by a RNA world as widely suggested a rational pathway should be discernable to link the two. This report uses as a starting point a membrane-enclosed ribozyme capable of polymerising itself and its counterpart copy. As molecular complexity increased, it is suggested that a consortia of the initial ribozyme polymerase and chaperone molecules formed a complex specifically for RNA replication.

The balancing act: key issues in the lives of women general practitioners in Australia.

Objective: To identify key issues affecting women general practitioners in their professional and non-professional lives.

Design: A qualitative study using the Delphi technique, with three rounds of data provision circulated to each participant. Coding was used to ensure anonymity.