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31.
Rural West Africans confront a challenging array of circumstances in pursuit of their livelihoods, which are negotiated through repertoires of knowledge, skill, wisdom and information that are held individually, communally or as the prerogative of experts. Of some significance is timing: finding the most effective or propitious moment for action. On the farm, anticipating the beginning and progress of the rains is crucial and sought through the empirical observation of natural phenomena, or as in northwest Nigeria additionally through agricultural star calendars and almanacs by Muslim clerics. Furthermore, some clerics use divination to identify propitious moments for their clients whereby they may achieve success in non-farm jobs and businesses that are an integral part of rural livelihoods. Taking action to achieve particular outcomes on and off the farm raises issues about local people's understanding of the physical world and their place within it, and the power of religion and the supernatural. An appreciation of such matters would appear to be crucial for those from the scientific and technological North who may be attempting to transform African societies.  相似文献   
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A 43‐year‐old full‐term pregnant woman (gravida 2, para 1, medical history of gestational diabetes mellitus) developed a sudden and malignant hypertension with hemoptysis, sweat, and tachycardia during a scheduled C‐section. A dead newborn was delivered and was successfully resuscitated. The mother died after resistant cardiac arrest. Autopsy and pathological analyses revealed an acute pulmonary edema and a necrotic and hemorrhagic voluminous tumor of the left adrenal gland, which was a pheochromocytoma. Pheochromocytoma is a rare tumor of the adrenal glands which secretes catecholamines. In pregnant women, its symptoms can mimic gestational hypertension, preeclampsia or eclampsia, and gestational diabetes mellitus. The gestational diabetes mellitus was presumed to be a symptom of the pheochromocytoma, and cardiopulmonary failure the result from the necrosis of the tumor provoked by gravid uterus compression. From a medico‐legal point of view, the tumor could not have been suspected during the pregnancy.  相似文献   
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Linda Venter 《Communicatio》2013,39(2):99-116
Abstract

This article uses a qualitative textual analysis of in-depth interviews with senior news processors as a methodology to explore the unique contextual dimensions that may influence the architectural structure of South African television news programmes. The discussion rests on the basic assumption that news will always present a mediated and constructed version of reality. Six communicative frames categories have been selected to investigate operational processes and issues organising the production process of news: short, straight-forward, ‘objective’ news reports; single-sourced news items based on one major voice or main perspective; investigative news reports; marketable news chosen for financial potential; news items based on community and cultural events; and mythic tales. The findings indicate that the interface between contextual factors and journalistic practices contributes to the unique challenges facing the industry in South Africa. The article concludes with an appeal to news processors to reflect on the consequences and effects their programmes have on audiences’ perception of reality, and proposes recommendations to enable audiences to become more empowered and engaged viewers.  相似文献   
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If, at the end of the eighteenth century, political economy became the prevailing representation of economic phenomena, this was due to the fact that, better than other economic or political discourses, it constructed a political framework in which three forces could co-exist. These forces were those that all the authors of this century tried to articulate: the state, capitalism, and those who tried to protect themselves from their power.  相似文献   
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This research focuses on the evolution and transformation of work organization and labour relations in the public service in Quebec and Canada. It seeks to determine the nature of innovations in the workplace and the level of employee participation in the innovation process. A survey of 2308 employees in six departments and agencies of the public service in Quebec and Canada reveals that the autonomy of employees, participation and shared responsibility for the development of innovations reflect an important transformation of the workplace. The effect of these innovations depends on the departments in which they occurred. However, the survey results do not permit an analysis of the scope of transformation of the organizational structure. Finally, this article shows that employees and managers are key players in the innovation process.  相似文献   
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