Acute effects of different warm-up protocols on highly skilled golfers’ drive performance     

Ben L. Langdown  Jack E.T. Wells  Sean Graham  Matt W. Bridge 《Journal of sports sciences》2019,37(6):656-664

Previous research has highlighted the positive effect that different warm-up protocols have on golf performance (e.g. Sorbie et al., 2016; Tilley & Macfarlane, 2012) with the design of warm-ups and programmes targeting and improving golf performance through the activation and development of specific muscle groups. This study aimed to examine the acute effects of two warm-up protocols on golf drive performance in comparison to a control condition. Using a randomised counterbalanced design over three testing sessions, twenty-three highly skilled golfers completed the control, dynamic and resistance-band warm-up conditions. Following each condition, a GC2 launch monitor was used to record ball velocity and other launch parameters of ten shots hit with the participants’ own driver. A repeated-measures ANOVA found significant increases in ball velocity (η_p² = .217) between the control and both the dynamic and resistance-band warm-up conditions but no difference between these latter two, and a reduction in launch angle between control and dynamic conditions. The use of either a dynamic stretching or resistance-band warm-up can have acute benefits on ball velocity but golfers should liaise with a PGA Professional golf coach to effectively integrate this into their golf driving performance.  相似文献   

Parental contributions,school‐level finances and decentralization: an analysis of Nicaraguan autonomous school budgets     

Alec Ian Gershberg  Ben Meade 《比较教育学》2005,41(3):291-308

The Nicaraguan Autonomous School Programme is notable among the growing number of school governance decentralization reforms in the Americas in the degree of control given to parents, especially in decisions regarding the allocation of school resources. Much of schools’ discretionary spending was accumulated through various school charges. This paper analyses rare school‐level budget data to determine the proportion of resources that derived from parental contributions and other school‐based commercial activity. We find the contributions to be significant, highly varied, and correlated with income. The results have implications for many decentralization reforms that encourage local contributions as part of both their financing and accountability strategies.  相似文献   

西方司法公正现实化的历史考察     

罗本琦 《安庆师范学院学报(社会科学版)》2001,20(5):68-72,87

司法公正现实化经历了一个从告知真理到发现真理的演进过程 ,其目标从实体公正与程序公正的统一、分化到并重 ;其模式由国家职权主义与当事人主义各自独立发展到二战以来的相互渗透。西方司法公正现实化源于人民对公正理念的执着追求和法官精英队伍的形成  相似文献   

Iranian Scholarly Journals 2.0: An Updated Annotated Bibliography     

Golnessa Galyani Maghaddam  Amir Vafaeian 《期刊图书馆员》2017,73(2):127-168

This is an update of the authors’ annotated bibliography of Iranian peer-reviewed scholarly journals that was published in 2010 in the Serials Librarian. The total number of scholarly journals published in Iran increased from 503 to 1,176 journals in 2017. The forty top journals ranked by impact factor from eight different disciplines are presented in this article. The entry for each journal includes the following information: title, subject, date founded, frequency, editor, language, publisher, address, phone number, FAX number, web address, International Standard Serial Number, indexing/abstracting sources, impact factor, ministry, and an abstract/annotation.  相似文献   

Sample, Random and Variation: The Vocabulary of Statistical Literacy     

Jane M. Watson  Ben A. Kelly 《International Journal of Science and Mathematics Education》2008,6(4):741-767

This paper considers the development of school students’ ability to define three terms that are fundamental to statistical literacy: sample, random, and variation. A total of 738 students in grades 3, 5, 7, and 9 were asked in a survey to define and give an example for the word “sample.” Of these, 379 students in grades 7 and 9 were also asked about the words “random” and “variation.” Responses were used to describe developmental levels overall and to document differences across grades on the understanding of these terms. Changes in performance were also monitored after lessons on chance and data, emphasizing variation for 335 students. After 2 years, 132 of these students and a further 209 students who were surveyed originally but did not take part in specialized lessons, were surveyed again. The difference after 2 years between the performance of students who experienced the specialized lessons and those who did not was considered, revealing no differences in performance longitudinally. For students in grades 7 and 9, the association of performance on the three terms was explored. Implications for mathematics and literacy educators are discussed.  相似文献   

Assessment of Students’ Understanding of Variation     

Jane M. Watson  Ben A. Kelly 《Teaching Statistics》2007,29(3):80-88

Several tasks used in research studies are presented with assessment rubrics and examples of the development of student understanding. The tasks focus on students’ appreciation of variation in several contexts and illustrate the need to discuss variation in the classroom and to ask students specifically about it during assessment.  相似文献   

地形图在考古调查中的应用     

张本昀  陈哲 《许昌学院学报》2003,22(2):71-73

大于1：10万的国家基本比例尺地形图，详细地表示了制图区域的地形、水系、土质植被、居民点、交通线等地理要素，这些要素包含了许多与考古有关的信息，通过对古遗址分布、地名起源及演变规律、及其在地形图上的反映特点的分析，可以在室内确定田野考古调查路线，使调查具有针对性．  相似文献   

Keeping plagiarism at bay—A salutary tale     

Ben R. Martin  other Editors of Research Policy 《Research Policy》2007,36(7):905-911

This editorial examines the question of whether plagiarism may be on the increase in the social sciences and, if so, what needs to be done to keep the problem in check. It was prompted by the discovery of an alert reader in June 2007 that a 1993 paper in Research Policy appeared to have plagiarised a 1980 article in the Journal of Business. The allegation was investigated, and it was agreed by the Editors that the 1993 paper constituted a clear and serious case of plagiarism. However, the author concerned has published over 100 articles and books. Already, two other publications have been judged by the editors of the journals concerned to have plagiarised previous publications. Two more are under investigation, but the great majority of the remainder still remain to be checked. The fact that academic misconduct on this scale has gone unchecked over such a prolonged period raises serious issues about the efficacy of the processes used to police the conduct of researchers. Furthermore, the unexpected discovery that a paper by the author under investigation appears itself to have been plagiarised poses a fundamental question as to whether plagiarism may be far more common than previously assumed. The editorial concludes that a measured degree of vigilance and a greater willingness to pursue any well-founded suspicions of research misconduct are required by editors, referees, publishers and the wider academic community if the scourge of plagiarism is to be kept at bay.  相似文献   

培养高素质生源选拔优秀设计人才     

贲东宁  姚远 《教学研究(河北)》2002,25(Z1):69-71

工业设计在经济建设中发挥着重要作用.设计师应具有较高的文化素质和艺术修养,应是全面发展的高素质人才.而我国的设计教育在招生方式和招生标准方面还存在许多问题,致使生源素质不高,不能选拔出高素质人才.所以必须对传统的招生方式进行改革,发展工业设计要从培养生源和选拔人才抓起.  相似文献   

New power networks in educational technology     

Ben Williamson 《Learning, Media and Technology》2019,44(4):395-398

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