Time certainly flies: with this issue I start my third year as thank Andrew Wood for acting as a Guest Assistant Editor Editor of APESM. It is still exciting, as well as a relief, to in organising the refereeing of these papers. see each new issue emerge from the printers. The APESM continues to give high priority to original production of the journal is a team effort and I thank all scientific and technical research contributions in the broad members of the production team, the Editorial Board and discipline areas of Medical Physics, Medical Radiation the referees. I cannot imagine how previous Editors coped Protection and Biomedical Engineering. At the same time, without the help of Assistant Editors. They have been of papers crossing the borders of these disciplines or written in invaluable help to me and the journal. Indeed, I would emerging disciplines and indicating new applications of welcome another volunteer or two to act in this role. This is physical and engineering sciences to medicine and biology a good way for a person to gain some experience either for are also welcome. On occasions, papers are published from its own sake or before taking on the position as Editor. It is outside these disciplines to arouse the curiosity of readers. an opportunity to gain first hand experience in seeing the Although not traditional research, occasional papers on the variety of styles of manuscripts submitted and how they are Educational aspects of our disciplines are also welcome. In refereed....