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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 small-scale trials were run in 1995, and this paper will describe(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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