A polarization study is presented of 44 blazars and candidate blazars observed at optical and near-IR frequencies. The spectrum of the radiation is discussed in terms of shock acceleration models. Frequency dependence is ...

Experiments were carried out to assess new users' attitudes to different versions of a speech input word processing system providing different error recovery strategies. Whilst they preferred a simple error message to none ...

We present a numerical formulation for the dynamic instability of microtubules involving the stabilisation of growing microtubules by a single layer of tubulin-GTP, with GTP hydrolysis effectively coupled to tubulin-GTP ...

The present broad-band and near-IR flux density and polarization measurements of a sample of 71 Seyfert galaxies and three broad-line radio galaxies confirms earlier indications that the polarization of Seyferts is generally ...

Many applications of knowledge-based systems (KBS) in network management have been described, though few have seen practical use. Most work has been in the areas of network design and fault diagnosis, using consultative ...