Fundamental interaction and the strong interaction. Their magnitude and behaviour vary greatly, as described in the table below. Modern physics attempts to explain every observed physical phenomenon by these fundamental interactions. Moreover, reducing the number of different interaction types is seen as desirable. Two cases in point are the unification of: Both magnitude ("relative strength") and "range", as given in the table, are meaningful only within a rather complex theoretical framework. It should also be noted that the table below lists properties of a conceptual scheme that is still the subject of ongoing research. The modern (perturbative) quantum mechanical view of the
Australasian College of Physical Scientists and Engineers in Medicine 1986. The ACPSEM facilitates training and professional accreditation for practising medical physicists in Australia and New Zealand. This includes significant support for the TEAP training program for medical physics trainees. The ACPSEM also promotes education and research into the biomedical applications of physics, mathematics, engineering and computing. The ACPSEM has an official scientific journal, Australasian Physical & Engineering Sciences in Medicine, which is published 4 times a year. The ACPSEM holds an annual Engineering and Physical Sciences in Medicine conference, and has done every year since 1961. The ACPSEM is governed by an elected board known as the ACPSEM Council,