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Angel Ric Robert Hristovski Bruno Gonçalves Lorena Torres Jaime Sampaio Carlota Torrents 《Journal of sports sciences》2016,34(18):1723-1730
The aim of this study was to identify the dynamics of tactical behaviour emerging on different timescales in football small-sided games and to quantify short- and long-term exploratory behaviour according to the number of opponents. Two teams of four professional male footballers played small-sided games against two different teams with a variable number of opponents (3, 5 and 7). Data were collected using a combination of systematic observation and a non-differential global positioning system (15 Hz). The temporal diversity and structural flexibility of the players were determined by calculating the dynamic overlap order parameter q, entropy and trapping strength. Analysis of the exploratory dynamics revealed two different timescales, forming a different metastable landscape of action for each constraint. Fast dynamics lasted on average a few seconds and consisted of changes in tactical patterns. The long timescale corresponded to the shared tasks of offence and defence lasting tens of seconds. The players’ tactical diversity decreased with an increasing number of opponents, especially in defence. Manipulating numerical imbalance is likely to promote changes in the diversity, unpredictability and flexibility of tactical solutions. The fact that the temporally nested structure of constraints shaped the emergence of tactical behaviour provides a new rationale for practice task design. The manipulation of numerical imbalance on the timescale of a few tens of seconds, on which the exploratory behaviour of players saturates, may help coaches to optimise the exploratory efficiency of the small-sided games. 相似文献
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崔山佳 《广播电视大学学报》2007,(3):73-75
有人认为双音节动词重叠后不能带"了"和"过",但古代白话小说中有这样的例子;也有人认为,"AB了AB"后不能带宾语,但《儿女英雄传》中有一个"AB了AB"后带宾语的例子;有人认为"VV瞧"和"V-V瞧"只有《红楼梦》中才有,且只有两例,但古代白话小说中还有不少"VV瞧"的例子,现代汉语方言中也有. 相似文献
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杨晓军 《河南职业技术师范学院学报(职业教育版)》2011,(8)
高校思政课是完整而系统地对大学生进行马克思主义理论与信仰教育的主阵地。然而,在高校思政课教学内容中存在着重复与交叉现象,这在一定程度上影响了课堂教学的实际效果。文章认为应在考虑各门课程教学整体性的基础上,采取加强教师之间的交流、提高教师自身素质和创新教学方法与技巧等方式加以解决,从而提高高校思政课的教学效果。 相似文献
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针对现有因子分析及相关分析两种方法在指标筛选与赋权方面有待完善之处,提出一种基于信息贡献率的评价指标筛选与赋权方法。该方法首先利用因子方差贡献率和因子载荷构建评价指标的信息贡献率,以此反映该指标解释原始指标集全部信息的比例,然后在现有相关分析法中引入病态指数测度指标集的信息重叠水平,进而实现评价指标的系统筛选与赋权。本研究认为评价指标的信息贡献率越大,其解释原始指标集信息的比例越大,因此该指标越应予以保留,其权重亦应越大。此外,研究亦发现因子分析法易误删信息解释能力强的指标,相关分析法筛选指标易不充分,而本文方法解决了这些问题。 相似文献
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蔡萍 《晋城职业技术学院学报》2011,4(2):80-83
新绛县位于山西省的西南部,新绛方言属中原官话。新绛方言名词和普通话相比很有特色,根据一些方言的研究成果对新绛方言的名词和普通话名词进行一个共时比较,从而揭示出它与普通话名词在语法上的共同点与差异。全文从名词的异形同义、重叠、词缀、兼类四方面对新绛方言名词进行研究。 相似文献
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The University of North Texas (UNT) Libraries are funded almost entirely by undergraduate student use fees. As the undergraduate enrollment has plateaued in recent years, the libraries have not been able to keep up with rising costs, resulting in a series of cuts to the materials budget totaling around $3.25 million. While some of these cuts took the form of reductions in firm orders and dissolution of approval plans, for the past three years the bulk has come from cancellations of serials and electronic resources. With each year’s cuts, the UNT Collection Development department has been forced to modify and refine their deselection process. This article will show the development of UNT’s strategy for determining cancellations using a variety of methods (overlap analysis, usage statistics, faculty input) and tools (EBSCO Usage Consolidation, Serials Solutions 360). 相似文献
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人们常用动物词来描写人物的特征,然而许多动物词在英汉语中具有不同的文化内涵,不能直接生搬硬套。本文从文化重合、文化冲突、文化移植与归化及文化空缺四个方面对英汉动物名词文化内涵的异同进行比较,同时研究其翻译策略,这不仅有助于语言的学习,同时也有助于避免跨文化交际中误解和冲突的出现。 相似文献
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邢娜 《河北广播电视大学学报》2014,(3):45-47
英汉两种语言中有着丰富的颜色词,而且这些颜色词不仅有其基本义,还具有丰富的隐喻义和转喻义,是人类认知的重要组成部分。从认知的角度,运用原型理论、隐喻和转喻理论分析英汉两种语言中基本颜色词的语义重合,对外语教学、翻译及跨文化交流有着重要的指导作用。 相似文献
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在衡水湖5个样地对1个乔木群落以及4个草本群落开展生态位宽度和生态位重叠指数研究.其结果表明:广生态位型的5个植物种火炬树(Rhus typhina)、柽柳(Tamarix chinensis)、芦苇(Phragmites communies)、茵陈蒿(Artemisia capillaries)和碱蓬(Suaeda glauca)其生态位宽度比较大,BL和B(SW)i两个指数都是外来入侵种火炬树最大,当地土著种芦苇次之,这反映了以上物种的地位和作用;存在生态位重叠的物种对占75.6%,即各物种对资源的共享趋势比较明显;但衡水湖高度的异质化生境且最大生态位宽度种火炬树为外来入侵种,共同造成了当地宽生态位物种间生态位重叠值不高的特点. 相似文献