英语不定冠词用法浅析

英语不定冠词在英语中使用率很高,英语名词中的可数和不可数特点使中国的英语初学者难以掌握不定冠词的用法。英语的不可数名词不能冠以不定冠词,但当不可数名词受到形容词或介词短语的修饰或限定时却变成可数名词,因而可以受到不定冠词的修饰,表示某种个别的或特殊的情况。     

高等学校培养高层次创新人才的探索

创新人才的本质特征是创造性，创新人才还具有其独特的人格特征及个性心理结构。高等学校为了培养和造就大批高层次创新人才，就必须以创新为核心目标，进行整体、系统和综合的改革：转变教育思想和观念；改革课程体系：突出大学生创新能力的培养；创设有利于大学生创造性发展的学习环境；塑造大学生的创造性人格；增强高校教师的创新精神，提高高校教师自身的创新能力。     

天津市微小企业主的知识素质开发

微小企业主在管理活动中的职能具有极大的综合性,其必须具备一定的基础文化知识,还要懂得生产操作,善于设计和开发,而且要具备多方面的管理能力。对天津市微小企业主知识素质现状的调查表明,企业主的基础文化程度普遍偏低,管理知识匮乏,大部人没有参加过相关培训。鉴于此,建议:引导企业主树立正确的自我定位,激发其企业家精神;引导企业主形成注重自身知识素质的意识;积极组织开展对微小企业主的教育与培训。     

Quantifying the offensive sequences that result in goals in elite futsal matches

The aim of this study was to quantify the type of offensive sequences that result in goals in elite futsal. Thirty competitive games in the Spanish Primera Division de Sala were analysed using computerised notation analysis for patterns of play that resulted in goals. More goals were scored in positional attack (42%) and from set pieces (27%) compared to other activities. The number of defence to offense “transitions” (n = 45) and the start of offensive plays due to the rules of the game (n = 45) were the most common type of sequences that resulted in goals compared to other patterns of play. The central offensive zonal areas were the most common for shots on goal, with 73% of all goals scored from these areas of the pitch compared to defensive and wide zones. The foot was the main part of the body involved in scoring (n = 114). T-pattern analysis of offensive sequences revealed regular patterns of play, which are common in goal scoring opportunities in futsal and are typical movement patterns in this sport. The data demonstrate common offensive sequences and movement patterns related to goals in elite futsal and this could provide important information for the development of physical and technical training drills that replicate important game situations.     

Timescales for exploratory tactical behaviour in football small-sided games

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.     

高校武术与武舞的协同发展

一直以来,武术的发展情况在高校的体育教学中都备受关注。然而,如何真正促进高校武术的发展,却一直都是研究的瓶颈,文章通过查阅资料,并进行实地采访和调查,分析得出要想真正促进高校武术的发展进步,必须将武术与武舞协同发展。二者相互促进,以武舞的表演性激发武术的活力,以武术的坚韧性来糅合武舞的单一性。同时,通过调查研究,针对促进高校武术与武舞的协同发展提出了一系列建议与方法,借以为高校武术的发展和中国武术传统文化的传承提供借鉴。     

跨国移民时代加拿大多元文化课程建构——基于跨国主义与跨文化主义

跨国移民时代的到来向加拿大长久以来实施的多元文化教育政策提出了新的挑战和要求。研究者对当前加拿大公立学校官方课程所表现出来的欧洲中心主义、国家身份均质化和赞颂式多元文化等弊端进行了深刻的批判性分析,为重新审视多元文化教育提供了不同的视角和观点。在跨国流动性日益增强的趋势下,研究多元文化教育如何影响跨国移民及其子女的身份认同、文化适应和社会融合等问题,有必要运用跨国主义和跨文化主义理论框架对现有课程作出修正。     

Remote ischaemic preconditioning shortens QT intervals during exercise in healthy subjects

The protective action of remote ischaemic preconditioning (RIPC) has been demonstrated in the context of surgical interventions in cardiology. Application of RIPC to sports performance has been proposed, but its effect on the electrocardiogram (ECG) during exercise remains unknown. This exploratory study aims to measure the changes in ventricular repolarization observed during exercise following RIPC in healthy subjects. In an experimental randomized crossover study, 17 subjects underwent two bouts of constant load exercise tests at 75% and 115% of gas exchange threshold (GET). Prior to exercise, they were allocated to either control or RIPC intervention with four cycles of 5?min of ischaemia followed by 5?min of reperfusion. ECG was continuously recorded during the protocol. QT and RR intervals were measured every 30?s (on an average tracing of the preceding 10?s). Although the time course of RR intervals did not differ between the two interventions (p?=?.56 at 75% GET and p?=?.74 at 115% GET), a significant shortening of QT intervals (measured from Q onset to T end) was observed during exercise (mean?±?standard deviation of RIPC vs. control: ?32?±?19?ms at 75% GET (p?p?p?p?相似文献   

Understanding the consequences of victory amongst sport spectators: The mediating role of BIRGing

Prior work on the relationships between team identification and spectators’ reactions to one's team victory has largely neglected the potential effects of mediating variables. In this research, we proposed that the process of Basking in Reflected Glory [BIRGing – the tendency to reduce the distance between oneself and one's team; Cialdini, R. B., Bordon, R. J., Thorne, A., Walker, M. R., Freeman, S., &; Sloan, L. R. (1976). Basking in reflected glory: Three (football) field studies. Journal of Personality and Social Psychology, 34, 366–375] would lead spectators to almost take ownership of victories and share its benefits, thereby impacting their sense of national belonging in a positive manner. To this end, participants (N?=?73) were asked to watch an edited video clip showing a victory of the French national rugby team playing against South Africa. As expected, results revealed that BIRGing mediated the relationship between team identification and one's sense of national belonging. In closing, a number of implications are discussed along with future research avenues pertaining to the sport spectatorship literature.     

基于MATLAB的Reed-Solomon编解码仿真

RS纠错码被广泛用在各种数字通信、数字广播和数据存储系统中.本文解释了纠错理论及RS码的相关原理,通过MATLAB仿真分析RS编码的误码率与信噪比之间的关系.