Determination of the swing technique characteristics and performance outcome relationship in golf driving for low handicap female golfers     

Susan J. Brown  Alan M. Nevill  Stuart A. Monk  Steve R. Otto  W. Scott Selbie  Eric S. Wallace 《Journal of sports sciences》2013,31(14):1483-1491

Abstract

Previous studies on the kinematics of the golf swing have mainly focused on group analysis of male golfers of a wide ability range. In the present study, we investigated gross body kinematics using a novel method of analysis for golf research for a group of low handicap female golfers to provide an understanding of their swing mechanics in relation to performance. Data were collected for the drive swings of 16 golfers using a 12-camera three-dimensional motion capture system and a stereoscopic launch monitor. Analysis of covariance identified three covariates (increased pelvis–thorax differential at the top of the backswing, increased pelvis translation during the backswing, and a decrease in absolute backswing time) as determinants of the variance in clubhead speed (adjusted r ² = 0.965, P < 0.05). A significant correlation was found between left-hand grip strength and clubhead speed (r = 0.54, P < 0.05) and between handicap and clubhead speed (r = ?0.612, P < 0.05). Flexibility measures showed some correlation with clubhead speed; both sitting flexibility tests gave positive correlations (clockwise: r = 0.522, P < 0.05; counterclockwise: r = 0.711, P < 0.01). The results suggest that there is no common driver swing technique for optimal performance in low handicap female golfers, and therefore consideration should be given to individual swing characteristics in future studies.  相似文献   

Multimedia transforms union Pacific’s training strategy     

Steve Cantwell 《TechTrends》1993,38(6):21-22

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Exploring the relationship between school discipline referrals and delinquency     

Jeffery Sprague  Hill M. Walker  Steve Stieber  Brandi Simonsen  Vicki Nishioka  Linda Wagner 《Psychology in the schools》2001,38(2):197-206

There is a growing concern about violent and destructive behaviors of youth that require intervention by juvenile justice and youth‐serving agencies. This concern has led many to conclude that schools and community agencies must increase efforts to prevent juvenile delinquency and to provide programs that will facilitate rehabilitation, education, and vocational training for youth already involved. A clear understanding of the nature and range of behaviors that result in juvenile crime is needed in order to develop programs and interventions that can be expected to lead to beneficial changes for youth and for society as a whole. The purpose of this article is to describe the relationship between school behaviors and youth characteristics in school (e.g., discipline referrals, teacher nominations, nomothetic ratings) and referrals to juvenile authorities (e.g., illegal behaviors). We describe a strategy of using teacher nominations, school discipline referrals, and community arrest data to predict delinquent and violent behavior in youth. We outline data from a group of socially maladjusted middle school youth to illustrate the relationship between the two data sources and recommendations for identification and treatment of youth at risk for delinquency and antisocial behavior. © 2001 John Wiley & Sons, Inc.  相似文献   

The structural relationship between writing attitude and writing achievement in first and third grade students     

Steve Graham  Virginia Berninger  Weihua Fan 《Contemporary educational psychology》2007

This study tested three models of the structural relationship between the writing achievement of primary grade students and their attitude towards writing (defined here as an affective disposition involving how the act of writing makes the author feel, ranging from happy to unhappy). The three models tested were: (a) writing attitude influences writing achievement in a unidirectional manner, (b) writing achievement influences writing attitude in a unidirectional manner, and (c) the effects of writing attitude and achievement are bidirectional and reciprocal. The model that best fit the data was based on the assumption that writing attitude influences writing achievement. In addition, the direct path between attitude and achievement in this model was statistically significant. Although third grade students were better writers than first grade students, there was no statistical difference in younger and older students’ attitude towards writing. In addition, girls were more positive about writing than boys, but there was no statistical difference in their writing achievement related to gender. This research extends models based on the cognitive and language processes of writing to include the role of attitude, which is an affective component of motivation.  相似文献   

Lower-Division Class size at U.S. Postsecondary Institutions     

Chatman  Steve 《Research in higher education》1997,38(5):615-630

The 1992—93 National Survey of Postsecondary Faculty (NSOPF) provides a unique opportunity to examine class size and the institutional and academic factors associated with class size differences. The institutional characteristics examined in this paper include public or private control, Carnegie classification, and institutional size. The course academic characteristics considered include academic discipline as described by Biglan (1973a), student level, and principal method of instruction. The results support the formation of comparative distributions for class size comparison and better understanding of institutional and course characteristics associated with class size differences.  相似文献   

Youth rising? The politics of youth in the global economy     

Laura Harvey  Steve Roberts  Jo-Anne Dillabough 《British Journal of Sociology of Education》2016,37(3):465-480

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Imagining and Moving Beyond the ESL Bubble: Facilitating Communities of Practice Through the ELL Ambassadors Program     

Steve Daniel Przymus 《Journal of Language, Identity & Education》2016,15(5):265-279

When educators do not facilitate English language learners’ (ELLs) social integration in schools, this can perpetuate ELLs’ marginalized status and the plateauing of ELLs’ English language development. This study highlights a program for secondary ELLs called the ELL Ambassadors program, which partnered ELLs with non-ELLs based on shared extracurricular interests. Comparing the stories, perspectives, and test scores of five newcomer ELLs from varied countries of origin, this article shows how program participants strengthened their English language skills and achieved academic success, demonstrating tremendous agency as they gained access to, and were socialized within, interest-based communities of practice. Further, this article documents how youth imagined and claimed new identities, moving beyond the insulation and isolation of the ESL bubble to gaining confidence through interest-based learning with other peers. Findings suggest that interest-based peer programs at schools may create important opportunities for ELLs’ academic, language, and identity formation.  相似文献   

Social Media References in Newspapers     

Steve Paulussen 《Journalism Practice》2014,8(5):542-551

Social media are increasingly being used as sources in mainstream news coverage. Yet, while the research so far has focused mainly on the use of social media in particular situations, such as breaking news coverage, during crisis news events or in times of elections, little attention is paid to journalists' routine, day-to-day monitoring of social media platforms. The aim of this study is to examine the use and selection of social media as sources in routine newspaper coverage. First, it presents a quantitative overview of all the articles published between January 2006 and December 2013 in the print editions of two Flemish (north Belgian) quality newspapers, De Standaard and De Morgen, that explicitly refer to Facebook, Twitter or YouTube. Next, a content analysis is conducted of a sample of newspaper articles published in 2013 that explicitly mention Facebook, Twitter or YouTube as sources of information. The goal of this content analysis is to examine the different appearances and functions of social media references in the news. The study thus provides a first insight into Belgian newspaper journalists' regular sourcing routines in relation to social media.  相似文献   

Introduction: The prospects for mobile learning     

John Traxler  Steve Vosloo 《Prospects》2014,44(1):13-28

The issue that this article introduces grew out of an event, the UNESCO Mobile Learning Week, but also out of a wider and growing movement of people and organisations exploiting mobile technologies, as they pursue varied educational missions. The UNESCO Mobile Learning Week represented by contributions here was a focus for contributions from across the field. This article provides a wider discussion of these contributions, first by looking at the achievements of UNESCO and then by considering these achievements more critically. In particular, it highlights several sets of inherent challenges facing UNESCO and other organisations engaging in mobile learning: those around evidence, evaluation, and sustainability; the problematic tension between large-scale interventions, based on scale and content delivered by national governments, and the language and culture of marginal or indigenous people; the absence of appropriate ethics procedures to manage educational interventions delivered by a powerful and ubiquitous technology; and the absence of learners in the forums that address all these various issues.  相似文献   

The relationship between inhibition and working memory in predicting children's reading difficulties     

Josephine N. Booth  James M.E. Boyle  Steve W. Kelly 《Journal of Research in Reading》2014,37(1):84-101

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