Agile Methods propose a new way of looking at software development that questions many of the beliefs of conventional Software Engineering. Agile methods such as Extreme Programming (XP) have been very effective in producing high-quality software in real-world projects with strict time constraints.Nevertheless, most university courses and industrial training programs are still based on old-style heavyweight methods. This article, based on our experiences teaching XP in academic and industrial environments, presents effective ways of teaching students and professionals on how to develop high-quality software following the principles of agile software development. We also discuss related work in the area, describe real-world cases, and discuss open problems not yet resolved.
Chilling of the body surface has been shown in earlier communications 1, ~ to cause reflex vasoconstriction and ischemia in the mucous membranes of the palate, palatine tonsils, and pharynx. The present study demonstrates a like reflex diminution in the blood supply of the nasal cavity and postnasal space (nasopharynx).In the postnasal space the reaction is closely similar to that previously described for the oropharynx; with chilling of the body surface the temperature of the nasopharyngeal mucosa has fallen typically between 1 ° and 2°C.; on rewrapping the subject, mucosa temperature rises, indicating return toward normal of the blood supply, but, typically, under the conditions of our experiments, recovery is not quite complete even after an interval at least as long as ½ hour after wrapping.In the nasal cavity the reactions are qualitatively similar but quantitatively much more striking; with cutaneous chilling the temperature depression of the nasal mucosa surface has been found in some instances to be more than 6°C. With rewarming, recovery has always been sharp, usually stopping somewhat below control level, but sometimes rising above it in this region notorious for its erratic variations in vasomotor state.
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