The Extragalactic Optical/Radio Reference Frame. A Progress Report, IAU Comm. 24 Working Group

Working within a complexity frame of reference –

‘ ... a simple system is one to which a notion of state can be assigned once and for all, or more generally, one in which Aristotelian causal categories can be independently segregated from one another. Any system for which such a description cannot be provided I will call complex. Thus, in a complex system, the causal categories become intertwined in such a way that no dualistic language of st...

Progress Report No. 24

Constructing a Body-Fixed Reference Frame for a Polyatomic Molecule

An attempt is made to show in a straightforward way how a body-fixed frame may be constructed in classical and hence in quantum mechanics for a polyatomic molecule with the aid of which the vibration-rotation behavior of the molecule may be described.

Processes: Working Group Report

It has often been suggested that model-driven development of user interfaces amounted to producing models of user interfaces then using automatic code generation to obtain the final result. However, this may be seen as an extreme interpretation of the model-driven approach. There are examples where that approach is successful, including mobile computing and database management systems. But in m...

Working Group Report

Atrial fibrillation, a commonly encountered arrhythmia, has in recent years, been the subject of increased interest and intensive clinical research. There is also increasing awareness that atrial fibrillation is a major cause of embolic events which in 75% of cases are complicated by cerebrovascular accidents. Atrial fibrillation is often associated with heart disease but a significant proporti...