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The Open University, which teaches around 150,000 students at a distance, is examining the adaptation of its distance teaching methods for the Internet, and its Computing Department has undertaken a sequence of trials to investigate both the technical and educational issues involved. Two smallscale trials were run in 1995, and this paper will describe their(More)
1. We investigated the effect of acute inhalation of cigarette smoke on subsequent non-adrenergic, non-cholinergic (NANC) neural bronchoconstriction in anaesthetized guinea-pigs in vivo by use of pulmonary insufflation pressure (PIP) as an index of airway tone. The contribution of endogenous nitric oxide (NO) was investigated with the NO synthase inhibitor(More)
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