Which drop jump technique is most effective at enhancing countermovement jump ability, “countermovement” drop jump or “bounce” drop jump?     

Brendan Michael Marshall  Kieran Andrew Moran 《Journal of sports sciences》2013,31(12):1368-1374

Abstract

The drop jump is a popular form of plyometric exercise often undertaken to enhance countermovement jump ability (jump height). Despite its popularity the effects of drop jump training on countermovement jump height are often inconsistent. Such inconsistencies may be as a result of differences in the drop jump technique being employed. Two recognised forms of drop jump are the “countermovement” drop jump and the “bounce” drop jump and the current study examined the effects of eight weeks of training with these drop jump techniques on countermovement jump height. Methods: A kinetic and kinematic analysis of each participant's countermovement jump, bounce- and countermovement drop jumps was undertaken prior to training. Participants were then randomly assigned to a bounce drop jump training group (n = 34), a countermovement drop jump training group (n = 35) or a control group (n = 34). Changes in jump height were examined following training. Results: The countermovement drop jump training group increased their countermovement jump height by 2.9 cm (6%), which was a significant change (P < 0.05) in comparison to that experienced by the bounce drop jump (-0.2 cm, -0.4%) and the control group (-0.1 cm, 0.2%). Conclusion: The countermovement drop jump may be more effective than the bounce drop jump at enhancing countermovement jump height.  相似文献   

Memory Drum Theory's C Movement     

Mark G. Fischman  Robert W. Christina  Greg J. Anson 《Research quarterly for exercise and sport》2013,84(3):312-318

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Personal Meaning and Vocational Differentiation: Reversing the Decrement Effect     

Margaret A. Moore  Greg J. Neimeyer 《Journal of Career Development》1997,24(2):83-94

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Season of birth is related to child retention rates, achievement, and rate of diagnosis of specific LD   总被引：1，自引：0，他引：1  

Martin RP  Foels P  Clanton G  Moon K 《Journal of learning disabilities》2004,37(4):307-317

A sizable literature has demonstrated that the achievement of children in early elementary school is related to their season of birth: Those born in summer typically perform less well than those born in the fall. A small literature indicates that more children diagnosed with specific learning disabilities (SLD) are born in the summer. We have begun to explore the possibility that the same processes may account for both outcomes. In order to better understand these processes, the standardized achievement levels and rates of diagnosis of SLD for children born during each season were studied in one geographical area of the State of Georgia served by 28 school districts. Standardized achievement scores in reading, mathematics, and science were reliably lower for those born in the summer. Furthermore, there was a strong relationship between season of birth and the rate at which children received a diagnosis of SLD. Summer-born children were diagnosed with SLD at a higher rate than their peers. Four hypotheses for both the lower performance in the general school population and the greater rate of SLD diagnosis among these children are discussed.  相似文献   

Principals of audit: testing,data and ‘implicated advocacy’     

Greg Thompson  Nicole Mockler 《Journal of educational administration and history》2016,48(1):1-18

Historically, school leaders have occupied a somewhat ambiguous position within networks of power. On the one hand, they appear to be celebrated as what Ball (2003 Ball, S., 2003. The teacher's soul and the terrors of performativity. Journal of education policy, 18 (2), 215–228.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) has termed the ‘new hero of educational reform'; on the other, they are often ‘held to account’ through those same performative processes and technologies. These have become compelling in schools and principals are ‘doubly bound’ through this. Adopting a Foucauldian notion of discursive production, this paper addresses the ways that the discursive ‘field’ of ‘principal’ (within larger regimes of truth such as schools, leadership, quality and efficiency) is produced. It explores how individual principals understand their roles and ethics within those practices of audit emerging in school governance, and how their self-regulation is constituted through NAPLAN – the National Assessment Program, Literacy and Numeracy. A key effect of NAPLAN has been the rise of auditing practices that change how education is valued. Open-ended interviews with 13 primary and secondary school principals from Western Australia, South Australia and New South Wales asked how they perceived NAPLAN's impact on their work, their relationships within their school community and their ethical practice.  相似文献   

Attachment representations of deaf adults     

McKinnon CC  Moran G  Pederson D 《Journal of deaf studies and deaf education》2004,9(4):366-386

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Personal construct systems in vocational development and information-processing     

Greg J. Neimeyer 《Journal of Career Development》1989,16(2):83-96

Greg J. Neimeyer is Associate Professor, Department of Psychology, University of Florida, Gainesville, Florida 32611.  相似文献   

Axioms, Essences, and Mostly Clean Hands: Preparing to Teach Chemistry with Libavius and Aristotle     

Bruce T. Moran 《Science & Education》2006,15(2-4):173-187

Andreas Libavius’ (c. 1555–1616) three part collection of letters, the Rerum chymicarum epistolica forma ... liber (1595–1599) is a particularly important text in fashioning the subject of chemistry as a demonstrative science and as a didactic discipline. Where Libavius’ Alchemia, which some have claimed to be the first textbook of chemistry, had mostly a humanist agenda, the Rerum chymicarum ... liber more directly sought to wrest the subject of “chemistry” away from Paracelsian adepts, and established the methodological basis for a specific form of knowledge suitable to the university. Making use of Aristotle’s Posterior analytics Libavius created a “floor-plan” for chemistry that integrated practical experience with natural philosophy, and could thus, he claimed, penetrate more deeply into the structure of nature than other academic disciplines.  相似文献   

Deaf signers who know Japanese remember words and numbers more effectively than deaf signers who know English     

Flaherty M  Moran A 《American annals of the deaf》2004,149(1):39-45

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Responses to Wyse and Styles' article, “Synthetic phonics and the teaching of reading: the debate surrounding England's ‘Rose Report’” (Literacy, 41, 1, April 2007)     

Margaret Cook  Alison Littlefair  Greg Brooks 《Literacy》2007,41(3):169-170

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