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21.
The functional integral representation for the space-time Hopf characteristic functional associated with boundary-free incompressible fluid turbulence is evaluated accurately to order R-2, where R is the dimensionless Reynolds number in the theory. This work extends the results obtained previously for C-dominant turbulence to the regime of experimentally accessible large Reynolds numbers. We obtain a characteristic functional of non-Gaussian form as an asymptotically exact solution to the theory for large values of R. Two-point and three-point velocity correlation tensors of physical interest are derived from the characteristic functional. 相似文献
22.
J. Bruce Francis Michalina Vaughan Colin Flood Page Sally Tomlinson R. A. Becher Margaret C. Ives John Urry K. G. Collier Meir Zadok Charles Carter Jürgen Schramm Jean Barry Graeme C. Moodie Donald Bligh R. A. King D. G. Mulcahy Peter Scott F. R. Charmer T. R. Bone John A. Hughes Roger Greenhough Alec M. Ross John Wakeford Joyce Skinner Duncan B. Nimmo Cedric Cullingford L. R. B. Elton 《Higher Education》1979,8(6):709-744
23.
Francis C. Spital 《Research Policy》1979,8(3):284-296
This paper describes a real-time investigation of the total new product portfolios of nine product departments in the scientific instrument industry. It was found that within these portfolios only a few new products represented a major advance in functional performance. Most new products offered only incremental performance improvement, and many ‘new’ products were direct copies of competitors ' offerings.The scientific instrument innovation process is described in seven stages: recognition of need, invention of solution, prototype development, use in application, precommercial information dissemination, product engineering, and commercialization. In those cases where users were involved in the majority of the first five stages of the innovation process, the innovation was either a major functional improvement or a minor improvement that had not been initiated as a direct response to a competitor's product introduction. Direct copies and minor improvements that were competitive responses are notable for the absence of user involvement in the innovation process.Finally, the decision of a manufacturer to commercialize an innovation was unrelated to the level of user activity in the prior stages of the innovation process. 相似文献
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The self-concept level of Black adolescents with African names was explored. Black males with and without African names were first identified. All participants and their parents were then administered the Terrell and Taylor Black Ideology Scale and the Coopersmith Self-Esteem Inventory. Differences between groups on the self-concept measures were then examined using a one way MANOVA with parents' scores on the self-concept measures serving as covariates. Significant differences were found between groups. Supplemental analyses revealed no differences between groups on the Coopersmith. However, adolescents with African names had significantly higher scores on the Black self-concept scales than did those without African names. 相似文献
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Linda O'Neill Francis Guenette Andrew Kitchenham 《British Journal of Special Education》2010,37(4):190-197
Elementary and special education teachers and school counsellors currently provide support to children presenting learning disabilities and behavioural problems symptomatic of the more hidden diagnosis of complex trauma resulting from abuse or severe attachment disruption. Specific disorders such as attention deficit/hyperactivity disorder (AD/HD) may be diagnosed in such children, but not the aetiology of complex trauma, resulting in missing information in the development of remedial and behavioural interventions. The evolving field of trauma counselling provides important information to special education teachers and school counsellors who work with children who have experienced trauma. In this review article authors Linda O'Neill of the University of Northern British Columbia (UNBC), Francis Guenette who is a doctoral student at the University of Victoria and Andrew Kitchenham of the University of Northern British Columbia summarise attachment, neurobiological, and complex trauma research that can be used in school settings to understand better the needs of these children. They conclude by suggesting that teachers and school counsellors would benefit from training on the consequences of childhood trauma and attachment disruption to develop interventions that will be effective and to identify what types of behaviours children can control and those they cannot. 相似文献
28.
Dawn Francis 《International journal of qualitative studies in education》2013,26(4):583-601
Drawing on a wider ethnographic study of cross-cultural interaction in a Papua New Guinean tertiary institution, this paper examines the interactions occurring in staff meetings. While the cross-cultural context is important, there are patterns here that are illuminating for all who have participated in meetings in any context. Meetings are framed as ritual: stereotypic, quasi dramatic, repetitive behaviors that persevere and are valued regardless of what is actually achieved. Having access to prestigious forms of knowledge, along with the prerogative to determine which knowledge and discourse types may be legitimately drawn upon in the meeting frame, allows those with power to determine the rules. Perhaps more importantly, it allows them to treat these rules, once normalized, in a more flexible way than less knowledgeable participants. Those who have communication competence, as defined within this frame, not only exercise influence but determine others' ability to do so. Non-participants collude with this in their silence. Collusion sustains existing perceptions of power, knowledge, and competence. If there is a genuine desire for more equitable decision making in meetings, participants might begin by probing the rituals of their meetings. 相似文献
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Becky Francis 《International Studies in Sociology of Education》2013,23(2):157-172
Recent philosophical debates have questioned the bases of identity politics in educational research and elsewhere, drawing attention to complexity and diversity of identity. These arguments will be briefly rehearsed, with reference to feminist theory. The criticism that one facet of identity (e.g. gender) cannot be analysed in isolation from others has sometimes been addressed via the study of the 'intersection' or 'interaction' of these various facets. However, others have attacked such approaches, maintaining that such aspects of identity are inseparably intermeshed, and beyond analysis. The poststructuralist account of the self and diversity appears to offer an analytical approach which can address such problems, yet poststructuralist theory also problematises many of the fundamental assumptions underlying emancipatory research in education and elsewhere. This article seeks to debate these various issues, with reference to research in schools. It argues the validity of research concerning specific aspects of identity. Drawing on concepts from feminist theory and reader response criticism, it outlines an approach to such work which rejects the dualisms of relativism/realism, similarity/diversity. 相似文献