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81.
The highly unsteady flow around a rowing blade in motion is examined using a three-dimensional computational fluid dynamics
(CFD) model which accounts for the interaction of the blade with the free surface of the water. The model is validated using
previous experimental results for quarter-scale blades held stationary near the surface in a water flume. Steady-state drag
and lift coefficients from the quarter-scale blade flume simulation are compared to those from a simulation of the more realistic
case of a full-scale blade in open water. The model is then modified to accommodate blade motion by simulating the unsteady
motion of the rowing shell moving through the water, and the sweep of the oar blade with respect to the shell. Qualitatively,
the motion of the free surface around the blade during a stroke shows a realistic agreement with the actual deformation encountered
during rowing. Drag and lift coefficients calculated for the blade during a stroke show that the transient hydrodynamic behaviour
of the blade in motion differs substantially from the stationary case. 相似文献
82.
Muthoni Kimemia Kimberly K. Asner-Self Andrew P. Daire 《International journal for the advancement of counseling》2011,33(3):149-160
Given the high prevalence of HIV/AIDS in Kenya, more Kenyans now find themselves in the role of informal caregiver for a family
member or multiple family members living with HIV/AIDS. However, there exists little research on how these individuals cope.
The present study explores coping responses among caregivers for family members living with HIV/AIDS in Kenya. An exploratory
factor analysis of the Brief COPE yielded five factors, with strong loadings on Emotional Support and Instrumental Support.
Implications for using the Brief COPE in research and clinical practice among Kenyans are discussed. 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
86.
Andrew Goodwyn 《English in Education》2012,46(3):212-227
Although the curriculum subject of English is continually reviewed and revised in all English speaking countries, the status of literature is rarely questioned: i.e. that it is of high cultural value and all students should be taught about it. The concerns of any review, in any country, are typically about what counts as literature, especially in terms of national heritage, and then how much of the curriculum it should occupy. This paper reports on three inter‐related pieces of research that examine the views of in‐service and pre‐service English teachers about their experiences of teaching literature and their perceptions of its ‘status’ and significance, both at official level and in the classroom; it draws attention to how England compares with some other English‐speaking countries and to the need to learn from the negative outcomes of political policy in England. The findings suggest that the nature of engagement with literature for teachers and their students has been distorted by official rhetorics and assessment regimes and that English teachers are deeply concerned to reverse this pattern. 相似文献
87.
Andrew Jenkins 《International Journal of Lifelong Education》2013,32(3):403-420
The objective of this research was to identify the effects of participation in learning on the subjective wellbeing of older adults. Data were from the English Longitudinal Study of Ageing (ELSA), a large-scale, nationally representative survey of those aged 50 and above. The survey contains several wellbeing measures and information on three types of learning: formal courses, music/arts/evening classes and gym/exercise classes. Multiple regression analyses were applied to the change in wellbeing outcomes between two survey waves. The key finding was that music, arts and evening classes were significantly associated with changes in each of the measures of subjective wellbeing. Formal courses and gym/exercise classes were not significantly associated with wellbeing, after controlling for other factors. 相似文献
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Andrew Lambirth 《English in Education》2016,50(3):215-232
This article reports on a study which was part of a two year writing project undertaken by a University in South East England with 17 primary schools. A survey sought the views of up to 565 children on the subject of writing. The analysis utilises Ivanič's ( 2004 ) discourses of writing framework as a heuristic and so provides a unique lens for a new understanding of children's ideological perspectives on writing and learning how to write. This study shows the development of learned or acquired skills and compliance discourses by the participating children within which accuracy and correctness overrides many other considerations for the use of the written word. 相似文献