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71.
Benjamin D. Plummer Brian M. Galla Amy S. Finn Sarah D. Patrick David Meketon Julia Leonard Calvin Goetz Elizabeth Fernandez‐Vina Sara Bartolino Rachel E. White Angela L. Duckworth 《Mind, Brain, and Education》2014,8(1):15-20
Schools are an important context for both basic and applied scientific research. Unlike the laboratory, however, the physical and social conditions of schools are not under the exclusive control of scientists. In this article, we liken collecting data in schools to putting on a theatrical production. We begin by describing the large cast of characters whose collaborative efforts make school‐based research possible. Next, we address the critics, including the university Institutional Review Board (IRB) and school administrators, whose feedback often improves the final study design. We then turn our attention to set building, stage directions, and rehearsals—key steps in the iterative process of refining study procedures. We end with a discussion of the day of data collection itself and activities that take place after the curtain drops. Throughout, we make recommendations based on our recent experience collecting data at several high schools. 相似文献
72.
In 2004 a collaborative, statewide outreach project in Delaware was undertaken where consumer health librarians were embedded in public libraries. In order to explore the effect of the embedded librarians on the quality of health information provision, unobtrusive reference visits were made to half of the public libraries in the state. The query “Do vaccines cause autism?” was posed to library staff; resources provided were recorded. In 67 percent of visits, public library staff provided authoritative health information resources. It appears the embedded librarians had a positive residual effect on the provision of authoritative health resources for addressing an ambiguous query. 相似文献
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Public Schools and the Common Good 总被引:1,自引:0,他引:1
William J. Reese 《Educational theory》1988,38(4):431-440
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Songning Zhang Michael Wortley Julia Freedman Silvernail Daniel Carson Maxime R. Paquette 《运动与健康科学(英文)》2012,1(2):114-120
PurposeThe purpose of this study was to examine effects of a sport version of a semi-rigid ankle brace (Element?) and a soft ankle brace (ASO) on ankle biomechanics and ground reaction forces (GRFs) during a drop landing activity in subjects with chronic ankle instability (CAI) compared to healthy subjects with no history of CAI.MethodsTen healthy subjects and 10 subjects who had multiple ankle sprains participated in the study as the control and unstable subjects, respectively. The CAI subjects were age, body mass index and gender matched with the control subjects. The arch index and ankle functions of the subjects were measured in a subject screening session. During the biomechanical test session, participants performed five trials of drop landing from 0.6 m, wearing no brace (NB), Element? brace and ASO brace. Simultaneous recording of three-dimensional kinematic (240 Hz) and GRF (1200 Hz) data were performed.ResultsThe CAI subjects had lower ankle functional survey scores. The arch index and deformity results showed greater arch deformity of Element? against a static load than in NB and ASO due to greater initial arch position held by the brace. CAI participants had greater eversion velocity than healthy controls. The ASO brace reduced the first peak vertical GRF whereas Element? increased 2nd peak vertical GRF. Element? brace reduced eversion range of motion (ROM) and peak eversion velocity compared to NB and ASO. In addition, Element? reduced dorsiflexion ROM and increased peak plantarflexion moment compared to NB and ASO.ConclusionResults of static arch measurements and dynamic ankle motion suggest that the restrictions offered by both braces are in part due to more dorsiflexed ankle positions at contact, and higher initial arch position and stiffer ankle for Element?. 相似文献
79.
Politicians and other leaders in Botswana have recently expressed concerns that the country's ‘youth’ is not taking its citizenship responsibilities seriously. This is in a context of rapid change and development in the last thirty years since Botswana's independence in 1966. The study described here explored the learned perceptions of citizenship responsibility amongst a selection of Botswana's young adults and youth leaders. These perceptions were analysed in relation to theories of social capital citizenship and learning. The findings suggest that the influences of globalisation are producing a shift from traditional communitarian citizenship values to ones of ‘enlightened self interest’. However, civil society is under‐developed and needs nurturing through an educational strategy that encourages participatory approaches to development. Some of the arguments articulated here are elaborated on in a book (Preece & Mosewunyane, 2004). 相似文献
80.
Initial-link response allocation in concurrent chains becomes less extreme as the absolute duration of the initial links increases
(Fantino, 1969). The present study asked whether initial-link duration affected how quickly response allocation reached asymptote
(i.e., acquisition of preference). Six pigeons were trained on a concurrent-chains procedure in which the terminal links were
fixed-interval (FI) 8 sec FI 16 sec or FI 16 sec FI 8 sec and were reversed every 20 sessions. Across conditions, all possible
combinations of transitions between variable-interval (VI) 8-sec (short) and VI 24-sec (long) initial-link schedules were
studied. Overall, the rate of acquisition was faster when the durations of the initial links preceding the reversal were short
rather than long, and when the durations of the initial links following the reversal were long rather than short. By contrast,
initial-link duration had no effect on acquisition or asymptotic measures of temporal control of terminal-link responding.
These results support the core principle of delay-reduction theory (Fantino, 1969) that the impact of a conditioned reinforcer
varies directly with initial-link duration, but also suggest that temporal learning during the terminal links proceeds independently
of initial-link duration. nt]mis|These data were presented at the annual meeting of the Association for Behavior Analysis,
Boston, May 2004. 相似文献