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Most weak memory consistency models are incapable of supporting a solution to mutual exclusion using only read and write operations. Processor Consistency–Goodman’s version is an exception. Ahamad et al.[1] showed that Peterson’s mutual exclusion algorithm is correct for PC-G, but Lamport’s bakery algorithm is not. In this paper, we derive a lower bound on the number and type (singleor multi-wr...

This letter to the Editor is in response to the paper 'Conceptualisation of the characteristics advanced practitioners in the medical radiation professions' by Smith et al. and the subsequent letter from Jenny Sim. The writers agree that research should be explicitly listed in the conceptual model of advanced practice, and provide some evidence and viewpoints from over a decade of advanced prac...

The reasons for writing malware are changing – and so is the malware itself. Danny Bradbury reports on the development of a seedy commercial market. a 2006 Published by Elsevier Ltd. Bill Gates’ time is up. At the end of January 2004, at the Davos forum, he said that within two years, spam would be a thing of the past. In reality, the problem is as rampant as ever. On its own, that would be mer...