This paper reviews the basic ideas underlying one-dimensional uid dynamic models of coronal loops and presents some of their most recent applications. These models are an important theoretical support to explore the new scenario provided by the data of Yohkoh, SOHO and TRACE, and are useful to interpret observations, when supplemented by appropriate spectral synthesis codes. Possible developmen...

This paper examines the UK's response to a recent European Clinical Trials Directive, namely the Department of Health, Central Office for Research Ethics Committee guidance, Governance Arrangements for NHS Research Ethics Committees. The revisions have been long awaited by researchers and research ethics committee members alike. They substantially reform the ethical review system in the UK. We ...