2 resultados para speculative prefetching

em University of Queensland eSpace - Australia


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his paper analyzes the discursive construction and contestation of ‘leaked’ stories in news broadcast programmes. Drawing on a sample of BBC Radio 4 news programmes recorded between May and June 2000, we analyze four items of news presented as leaks about upcoming events. We suggest that these examples highlight the leaking of information as a valuable newsworthy commodity in that it not only allows news organizations to report what is going to be news before it happens but also enables speculative discourse as to the meaning of the event yet to happen. However, in order for a story to be accepted as a leak it must be seen to fulfil a number of criteria. With this in mind, we identify four features accompanying the introduction of the news items as leaks in the process of authentification: secrecy, authorship/ownership and future orientation. The article then discusses how these features are used when contesting the status of a news story as a leak, and how temporal play contributes to downgrading the content of the leak and, hence, its relevance, immediacy and newsworthiness.

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Objectives: To identify and demonstrate necrotizing dermatitis in infancy; an uncommon, puzzling syndrome, in which anecdotal reporting and personal experience indicates that one third of cases may require skin grafting. Much informed discussion about the pathogenesis of this distressing syndrome centres on the role of spider envenomation; and in particular on the speculative role of the Australian White-tailed spider, Lampona cylindrata. Methods: We present here six cases of necrotizing dermatitis treated surgically at the Royal Children's Hospital and Mater Children's Hospital in Brisbane over the period from 1991 to 1999. Clinical history, surgical details and pathological investigations were reviewed in each case. Microbiological investigation of necrotic ulcers included standard aerobic and anaerobic culture. Result: Nocardia and Staphylococcus were cultured in two cases, but no positive bites were witnessed and no spiders were identified by either the children or their parents. All cases were treated with silver sulphadiazine creme. Two of the infants required general anaesthesia, excision debridement and split skin grafting. The White-tailed spider, Lampona cylindrata, does not occur in Queensland, but Lampona murina does; neither species has necrotizing components in its venom. Circumstantial evidence is consistent with this syndrome being due to invertebrate envenomation, possibly following arachnid bites. Conclusion: In our experience there is insufficient evidence to impute a specific genus as the cause, at this stage of scientific knowledge. If the offending creature is a spider, we calculate that the syndrome of necrotizing dermatitis occurs in less than 1 in 5000 spider bites.