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71.
Formulae are derived for the deflection surface of a symmetrically loaded circular plate having several points supports which are situated at equal distances apart on a single concentric circle. There is no restriction on the diameter of the support circle, which may be as large as the diameter of the plate itself. The results of this paper compare favorably with published experimental results. Numerical deflection coefficients for a uniformly loaded plate are provided, and these could be utilized for optimizing the positions and the number of concentrated supports. 相似文献
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The development of support staff was a key aspect of the Labour government’s reform of the school workforce in England. As part of this strategy approximately 25,000 Teaching Assistants (TAs) gained Higher Level Teaching Assistant (HLTA) status and were deployed in schools in a variety of roles, often operating in a quasi-teaching role. The research re-visits individuals who had acquired HLTA status between 2006 and 2009 and had participated in a questionnaire survey regarding their role at that time. A duplicate questionnaire was distributed in 2013 to 305 of these HLTAs and was followed up in 2014 by focus groups with self-selecting individuals from the original sample. To date there has been little research relating to the development of the HLTA role and the implications this has for both teachers and pupils, particularly in terms of provision for the most vulnerable learners. 相似文献
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Developmental psychologists have long been concerned with the ways that early adversity influences children's long-term outcomes. In the current study, activity of the hypothalamic–pituitary–adrenal axis of medically at-risk (e.g., preterm) infants was measured as a result of maternal participation in a novel cognitively based home visitation program (versus a Healthy Start home visitation program). Maternal participation in the cognitive intervention predicted lower basal cortisol levels among infants—with reduced levels of maternal avoidance/withdrawal serving as a mediator of this relation. Lower cortisol levels in infancy, in turn, predicted higher verbal short-term memory (STM) at age 3. STM represents a cognitive ability that has importance for children's later educational outcomes. Findings provide experimental evidence concerning the pathway by which an early intervention may produce hormonal changes that can, in turn, influence children's learning outcomes. 相似文献
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Lee Burdette Williams 《About Campus》2010,15(1):28-31
Lee Burdette Williams shares her firsthand experience of her students' resilience in the face of loss. 相似文献
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Although sabbatical leave for teachers was suggested in the James Report more than 25 years ago, it remains as much of an unattainable ideal as ever—a sad fact in the light of the message of this paper. What Les Summers tells us clearly illustrates the potential value that sabbaticals might have for teachers: how they might return to school both refreshed and with new and innovatory ideas. The chance to study some schools in Australia enabled Summers to do just this, and he was able to see issues of disaffection here from a new perspective as a result of his experiences. He then went on to develop the idea of a programme which responds to the needs of young school leavers. 相似文献
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