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71.
Nicola Bullock David T. Martin Angus Ross Doug Rosemond Terry Holland Frank E. Marino 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(3):351-360
This study characterizes key elements of the start in elite female World Cup skeleton athletes. The top 20 female competitors in three World Cup races were videotaped within a calibrated space to allow the following components of the start to be quantified: (1) acceleration (velocity at 15-m mark, time to 15-m mark), (2) capacity (time to load, total number of steps to load), and (3) load (velocity at 45-m mark). A correlation analysis was used to establish the relationship between the variables of interest and overall start time (15- to 65-m mark). Velocity at the 15-m mark accounted for 86% of the variance in overall start time at St. Moritz and 85% at Sigulda. A stepwise regression analysis revealed that approximately 89% of the variation in start time could be explained by velocity at the 15-m mark, time to load, and velocity at the 45-m mark. Of the variables analysed in this study, rapid acceleration to attain a high velocity at the 15-m mark was the most important component of a fast overall start time. The importance of the time to load and velocity at the 45-m mark vary according to the different track characteristics. 相似文献
72.
Lucy Bailey 《British Journal of Sociology of Education》1995,16(4):479-494
This article applies the correspondence thesis devised by Bowles and Gintis (1976) to the 1988 Education Reform Act. Theoretical shortcomings of the thesis are identified, and a reformulated version is suggested which incorporates resistances into the analysis of the education system. More limited claims for the thesis are posited. The Education Reform Act is then explored with reference to the revised correspondence principle. Building on the work of previous theorists, it is argued that we may be seeing shifts to post-Fordist education, although contradictions and tensions in this movement are identified. It is suggested that the quasi-market in education is to some extent a change in the legitimating processes of reproduction, rather than a change in what is being reproduced. 相似文献
73.
Doug MacLean Paul M. Gannon 《International Journal of Disability, Development & Education》1997,44(3):217-228
The study measured the general attitudes towards disability of academics, administrative staff, and students in a small rural University. Respondents were also asked to comment on the nature of support that might be provided for a student with an emotional disability. There were some significant differences in level and nature of support for students with an emotional disability among academics, administrative staff, and students. These differences were related to the levels of comfort with, and sympathy felt towards, students with an emotional disability. However, overall the results suggest that university students with expressed emotional difficulties are liable to be relatively negatively regarded and are not liable to receive much concrete assistance for the difficulties they face. It is proposed that the data supports the notion that academics, of all the groups measured, are best placed to decide types of support for students with an emotional disability on a case by case basis. 相似文献
74.
Invention and Productive Failure activities ask students to generate methods that capture the important properties of some given data (e.g., uncertainty) before being taught the expert solution. Invention and Productive Failure activities are a class of scientific inquiry activities in that students create, implement, and evaluate mathematical models based on data. Yet, lacking sufficient inquiry skills, students often do not actualize the full potential of these activities. We identified key invention strategies in which students often fail to engage: exploratory analysis, peer interaction, self-explanation, and evaluation. A classroom study with 134 students evaluated the effect of supporting these skills on the quality and outcomes of the invention process. Students in the Unguided Invention condition received conventional Invention Activities; students in the Guided Invention condition received complementary metacognitive scaffolding. Students were asked to invent methods for calculating uncertainties in best-fitting lines. Guided Invention students invented methods that included more conceptual features and ranked the given datasets more accurately, although the quality of their mathematical expressions was not improved. At the process level, Guided Invention students revised their methods more frequently and had more and better instances of unprompted self-explanations even on components of the activity that were not supported by the metacognitive scaffolding. Classroom observations are used to demonstrate the effect of the scaffolding on students’ learning behaviours. These results suggest that process guidance in the form of metacognitive scaffolding augments the inherent benefits of Invention Activities and can lead to gains at both domain and inquiry levels. 相似文献
75.
Shana K. Carpenter Nicholas J. Cepeda Doug Rohrer Sean H. K. Kang Harold Pashler 《Educational Psychology Review》2012,24(3):369-378
Every day, students and instructors are faced with the decision of when to study information. The timing of study, and how it affects memory retention, has been explored for many years in research on human learning. This research has shown that performance on final tests of learning is improved if multiple study sessions are separated—i.e., “spaced” apart—in time rather than massed in immediate succession. In this article, we review research findings of the types of learning that benefit from spaced study, demonstrations of these benefits in educational settings, and recent research on the time intervals during which spaced study should occur in order to maximize memory retention. We conclude with a list of recommendations on how spacing might be incorporated into everyday instruction. 相似文献
76.
Drawing on the first wave of data from the Chilean Longitudinal Study for Early Childhood the current study examined the relation between family socioeconomic status (SES) and children's receptive Spanish vocabulary, and whether these relations were mediated by physical features of the home environment, parent–child interactions, and participation in center-based child care. The results of path analyses (n = 1589) estimating direct and indirect effects of SES on children's receptive vocabulary test scores provided evidence of partial mediation through indices of standard of living and parents’ level of cognitive and linguistic stimulation in the home. This study is among the first to replicate with a non-U.S. sample, a well-established linkage among SES, family-level conditions and processes, and young children's language outcomes. 相似文献
77.
Herbert S. Bailey Robert J. Glessing Ruth Kent Harold D. Lasswell Daniel Lerner 《Communication Booknotes Quarterly》2013,44(9)
Herbert S. Bailey's The Art and Science of Book Publishing (Harper & Row, $7.95). Robert J. Glessingts The Underground Press in America (Indiana University Press, $6.50). Ruth Kent's The Language of Journalism (Kent State University Press, $5.00/1.95) Harold D. Lasswell and Daniel Lerner's The Prestige Press: A Comparative Study of Political Symbols (Massachusetts Institute of Technology Press, $12.00). 相似文献
78.
Doug Hill Jeff Weingrad Christopher Schemering Lynn Woolley Michael Shore Dick Clark 《Communication Booknotes Quarterly》2013,44(3)
SATURDAY MIGHT: A BACKSTAGE HISTORY OF SATURDAY MIGHT LIVE by Doug Hill and Jeff Weingrad (New York: Beech Tree Books/Morrow, 1986—$17.95) THE SOAP OPERA ENCYCLOPEDIA by Christopher Schemering (New York: Ballantine Books, 1985—$8.95, paper) WARNER BROS. TELEVISION: EVERY SHOW OF THE FIFTIES AND SIXTIES EPISODE-BYEPISODE by Lynn Woolley, et al. (Jefferson, NC: McFarland & Co., 1985—$25.95) THE HISTORY OF AMERICAN BANDSTAND by Michael Shore with Dick Clark (New York: Ballantine Books, 1985—$12.95, paper) A COLLECTOR'S GUIDE TO TV MEMORABILIA by Anthony Slide (Wallace-Homestead Book Co., 580 Waters Edge, Lombard, IL 60148—$13.95, paper) 相似文献
79.
Rachel R. Harari Rose K. Vukovic Sean P. Bailey 《Journal of Experimental Education》2013,81(4):538-555
This study explored the nature of mathematics anxiety in a sample of 106 ethnically and linguistically diverse first-grade students. Although much is known about mathematics anxiety in older children and adults, little is known about when mathematics anxiety first emerges or its characteristics in young children. Results from exploratory factor analysis indicated that mathematics anxiety in first grade is a multidimensional construct encompassing negative reactions, numerical confidence, and worry. Negative reactions were related specifically to foundational mathematical concepts whereas numerical confidence was related specifically to computation skill; worry was not related to any outcome. Levels of mathematics anxiety did not differ by sex or language background. Overall, negative reactions and numerical confidence were found to be the most salient dimensions of mathematics anxiety in this sample. 相似文献
80.
George Arthur Bailey 《The Journal of environmental education》2013,44(4):3-8
Abstract Academic wilderness education is separate from adventure and skills-oriented approaches. Though problems in logistics, academic expertise, and leadership place unusual demands on teachers and students, the qualitative benefits of field studies can be profound. Three programs are described ranging from short- to long-term immersion in backcountry environments. The University of Montana Wilderness and Civilization program focuses on the boundary between wildness and domesticity. The Outdoor Program of Hampshire College uses an individual-in-community approach that leads toward participatory empowerment. Sierra Institute programs, offered through the University of California Extension, Santa Cruz, challenge students with eight weeks in wilderness areas, probing the roots of ecology and attitudes toward nature. At the deepest level, wilderness studies direct participants toward reconnecting culture with nature through advocacy and cultivation of the ecological self. 相似文献