论"自然教育"目的观的现代价值     

何岸  晋海燕 《天津电大学报》2006,10(1):29-30,39

在当代中国,以素质教育为核心的教育改革正如火如荼地开展起来,创新教育的呼声越来越高,而几百年前轰动一时的“自然教育”似乎被人们遗忘。那么自然教育到底是何种教育呢?一、“自然教育”的产生及发展西方古希腊的亚里士多德把教育看作是依靠内部发展的一种自发实现的过程,并  相似文献   

Perceived health problems in swimmers according to the chemical treatment of water in swimming pools     

Álvaro Fernández-Luna  Pablo Burillo  José Luis Felipe  Julio del Corral  Jorge García-Unanue  Leonor Gallardo 《European Journal of Sport Science》2016,16(2):256-265

The objective of this study was to determine which chemical treatment used for disinfecting water in indoor swimming pools had the least impact on users' perceptions of health problems, and which generated the greatest satisfaction with the quality of the water. A survey on satisfaction and perceived health problems was given to 1001 users at 20 indoor swimming pools which used different water treatment methods [chlorine, bromine, ozone, ultraviolet lamps (UV) and salt electrolysis]. The findings suggest that there is a greater probability of perceived health problems, such as eye and skin irritation, respiratory problems and skin dryness, in swimming pools treated with chlorine than in swimming pools using other chemical treatment methods. Pools treated with bromine have similar, although slightly better, results. Other factors, such as age, gender, time of day of use (morning and afternoon) and type of user (competitive and recreational), can also affect the probability of suffering health problems. For all of the above, using combined treatment methods as ozone and UV, or salt electrolysis produces a lower probability of perceived health problems and greater satisfaction.  相似文献   

Active recovery of the finger flexors enhances intermittent handgrip performance in rock climbers     

Jiří Baláš  David Giles  Jan Kodejška  Michaela Panáčková  Simon Fryer 《European Journal of Sport Science》2016,16(7):764-772

This study aimed to (1) evaluate the effect of hand shaking during recovery phases of intermittent testing on the time–force characteristics of performance and muscle oxygenation, and (2) assess inter-individual variability in the time to achieve the target force during intermittent testing in rock climbers. Twenty-two participants undertook three finger flexor endurance tests at 60% of their maximal voluntary contraction until failure. Performances of a sustained contraction and two intermittent contractions, each with different recovery strategies, were analysed by time–force parameters and near-infrared spectroscopy. Recovery with shaking of the forearm beside the body led to a significantly greater intermittent test time (↑ 22%, P?P?P?相似文献   

Remote ischaemic preconditioning shortens QT intervals during exercise in healthy subjects     

Maxime Caru  François Lalonde  Hugo Gravel  Chantal Daigle  François Tournoux  Vincent Jacquemet 《European Journal of Sport Science》2016,16(8):1005-1013

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     

Iouri Bernache-Assollant  Yves Chantal  Patrick Bouchet  Marie-Françoise Lacassagne 《European Journal of Sport Science》2016,16(6):719-725

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.  相似文献   

#OscarsSoWhite: how Stuart Hall explains why nothing changes in Hollywood and everything is changing     

Isabel Molina-Guzmán 《Critical Studies in Media Communication》2016,33(5):438-454

ABSTRACT

Stuart Hall’s work on culture, representation, ideology and hegemony positions Hollywood as a cultural institution informed by and informative of US social values and norms. Thus contemporary debates over Hollywood's diversity are indicative of broader social conflicts. Empirically the article examines 2014–2015 news coverage of Hollywood to question the Hollywood paradox—the lack of diversity in film/TV production yet TV’s increasing shift towards on-screen diversity. It maps three discursive frames: Hollywood exceptionalism, economic imperatives, and institutionalized racism and sexism. The article concludes by using Hulu’s East Los High to reflect on TV’s digital turn and innovative models in production and representation.  相似文献   

运用会计实验教学提高会计教学质量   总被引：1，自引：0，他引：1  

安涛 《兰州教育学院学报》2006,(3):51-52

本文就运用会计实验教学培养学生学习兴趣、提高操作技能和理论认识水平等方面进行了探讨。  相似文献   

An ornithological pilgrimage to lake Manasarowar and Mount Kailas     

Sálim Ali 《Resonance》1997,2(1):81-94

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中国自由职业者审美需要调查研究     

安敏  赵伶俐 《绥化学院学报》2007,27(5):153-156

所谓审美就是人对事物的关照、鉴赏和愉悦体验,它包括审美感知、审美记忆、审美情感、审美理解、审美想象等心理活动过程.审美需要是具有实体性内容的审美价值观念和审美价值取向.[1]本研究通过对中国不同学历层次、不同性别、不同地区的自由职业者进行抽样调查,结果表明:(1)不同学历自由职业者审美需要不均衡,且总体上呈现审美需要水平随学历升高而升高的趋势;(2)不同地区自由职业者审美需要不均衡,大城市的自由职业者的审美需要水平总体上高于中小城市的;(3)不同性别自由职业者审美需要不均衡,女性审美需要水平要高于男性的.  相似文献   

高Tc氧化物超导体与稀土永磁材料的一点类比     

蒋建生  杜红林 《闽江学院学报》2002,23(6):47-49

本文定义了稀土元素与其它元素之间的加权平均电负性差P和加权平均原子赝势半径差Q.发现具有较好磁性能的稀土永磁材料的P,Q值点基本上分布在一个特定的狭带区范围内,而高Tc氧化物超导体的P,Q值点基本上也分布在另一个特定的区域范围内,而且这两个区域的走向基本平行.上述结果将有助于人们探索新的高Tc氧化物超导体.  相似文献