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991.
The negative effects of sleep difficulties have been well documented. However, the prevalence of such problems among US college students has not been well studied. Design difficulties are common in the limited number of existing investigations, making it difficult to estimates the prevalence and types of disturbance studied. The authors describe the use of a quantitative-based assessment instrument to provide an initial indication of students' sleep problems and to serve as a means of addressing some of the deficiencies in the literature. In their sample of 191 undergraduates at a rural southern university, they found that most of the students exhibited some form of sleep disturbance and that women, in general, reported more sleep disturbances than men did. They suggest how colleges and university officials can alter procedures to minimize students' sleep disturbances and reduce the deleterious effects of sleep problems on academic performance.  相似文献   
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This paper cites examples of where peripheral events have caused ripples that reached right to the centre of an organisation. However, it also says that activities on the periphery can be a source of strategic insights. It suggests some tools for creating a sensing organisation that include establishing listening posts and developing communities of practice. It concludes by saying managers need to create the ‘ambidextrous’ corporation, whereby they use these tools for probing the periphery without making them a distraction from the central business.  相似文献   
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The concept of "science" usually includes commitments to reason, objectivity, and disinterest in the search for truth about the nature of the world. In this view, politics, in the sense of maneuvering to gain power, corrupts both the process and the product of science. However, we show that science is political through and through—in the process of constructing scientific knowledge, in maintaining disciplines, and in being responsive to partisan sponsorship. Nevertheless, the practitioners of both science and politics maintain the boundary between the two fields; in fact, the disciplines most dependent upon government support tend also to be the most autonomous. This situation becomes understandable when both fields are considered as discursive practices. Then, scientific debates can be seen as productive precisely because they derive from an objective agreement about science as an autonomous intellectual enterprise, and science itself can be seen as a politics of truth .  相似文献   
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The following article reports on a small‐scale, exploratory study of aggressive and ‘problem’ behaviour in pre‐school children. This project was conceived in the wider context of anxieties about childhood and New Labour’s policy focus on ‘anti‐social’ behaviour in children. Based on interviews with nursery staff and parents in addition to participant observation undertaken in nursery playrooms, this article examines the relevance of time, space and gender for understanding problem behaviour in young children. Taking a social constructionist perspective and drawing on Foucault's ideas in particular, it examines the social processes which regulate and normalise behaviour in young children. © 2006 The Author(s) Journal compilation © 2006 National Children's Bureau.  相似文献   
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Abstract Using data from the 1995 National Survey of Family Growth, we examine residential variation in cohabiting women's union outcomes. Prior work has shown that although there are no residential differences in cohabitation, nonmetro women are more likely than others to marry directly and hold more favorable attitudes toward marriage. Building on this work, we examined residential differences in cohabiting women's union outcomes (i.e., marriage, separation, or remaining intact) to test whether nonmetro cohabiting women's unions are more likely to “end” through marriage, and whether pregnancy has a larger positive effect on marriage entry among this group. We find that nonmetro women are less likely to remain in cohabiting unions and are more likely to either marry or separate during the first 24 months of the cohabiting union. Pregnancy during cohabitation encourages marriage and discourages separation, but these effects are not significantly larger for nonmetro women.  相似文献   
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