Richard G. Evans

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Sixty-seven episodes of spinal cord compression (SCC) were retrospectively evaluated regarding presenting features and treatment outcome. They were divided into three motor function groups. Group 1 consisted of 35 ambulatory patients, group 2 of 29 non-ambulatory patients and group 3 of three paraplegic patients. Lower extremity weakness was usually a late(More)
We have used the 9L rat brain tumor model to search for effective chemotherapeutic approaches to the management of brain tumors. Several antineoplastic agents which have been proposed or are currently being used for human brain tumors, including 1,3-bis (2-chloroethyl)-1-nitrosourea (BCNU), bleomycin, aziridinylbenzoquinone (AZQ), cis-Platinum, and(More)
BACKGROUND Individual physician performance assessment is a vital part of the medical regulation debate. In this context, the patient perspective is seen as a potentially valid component. Yet, the theoretical and empirical evidence base for such patient assessments is unclear. OBJECTIVES To identify and evaluate instruments designed to assess patients'(More)
BACKGROUND Periodic assessment of clinician performance or 'revalidation' is being actively considered to reassure the public that doctors are 'up to date and fit to practice'. There is, therefore, increasing interest in how to assess individual clinician performance in a valid and reliable way. The use of peer assessment questionnaires is one of the(More)
BACKGROUND Despite policy and financial support for patient-experience surveys as feedback to modify clinical practice, their benefits and other effects remain unclear. AIM This study aimed to examine the perspective of GPs who have engaged with such tools. METHOD Qualitative semi-structured interviews with 30 GPs across south Wales, UK. The transcripts(More)
A Neural State Machine, constructed from weightless artificial neurons, is used to “ground” visual and linguistic representations, from real-world sources, using minimal preprocessing. Simulations are used to demonstrate that the system can work in real time, in a real environment, to provide a means of grounding both concrete nouns, and some simple motion(More)
Diethyldithiocarbamate (DDC), a chelating agent known to reduce levels of Superoxide dismutase and glutathione perox-idase, appears to protect irradiated monolayers of mammalian cells when present for 1 hr before and during irradiation. To examine a possible cause of this modification, the repair of potentially lethal X-ray damage was examined with and(More)