理性和意志碰撞的体育动力论

在进一步研究体育的本质问题时发现：理性制约意志驱动体育动力来源发生着碰撞,理性不是唯一的,意志也不是唯一的,彼此之间超越一方达到极至,将产生一种失衡状态,客观地存在着控制与反控制的动力平衡点,这个过程被人类社会秩序完整地掌握和调控。表现在：体育意志试图超越理性的界碑,但总是被限制;理性试图超越意志的体育灵魂,也经受到有力的打击;当理性制约意志的体育动力时,也发生着因果关系的转换。     

陕西师范大学体育教育专业免费师范生的课程研究

采用文献资料等方法,对陕西师范大学体育教育专业免费师范生的课程现状进行研究。结果表明：农村中小学最需要教学实践能力强、技术全面、有扎实的基础理论功底,并且能够胜任农村中小学体育教学的优秀体育教师。而我校体育教育专业目前存在着课程设置太死、缺乏实践能力,以及适应农村中小学体育教学能力的培养、专业技术课学时缺乏、教育实习制度不完善、并且课程设置与中小学体育新课标的教学要求相脱节等问题。因此,目前我校体育教育专业的课程设置与免费师范生政策的人才需求不相适应。     

不同药物对一次力竭游泳小鼠海马自由基代谢的影响

目的:以人参为阳性对照,研究北冬虫夏草和辽东木对一次力竭小鼠海马自由基代谢的影响及其机制。方法:雄性昆明种小鼠,随机分为5组:安静组,力竭运动组,虫草加力竭运动组,木加力竭运动组,人参加力竭运动组,运动模式为一次无负重力竭游泳,之前6周给相应组大鼠服用北冬虫夏草发酵液、辽东木提取物和人参茎叶提取物,最后一次运动后即刻取样测定各组小鼠海马MDA、T-AOC及游泳至力竭的时间。结果:一次力竭游泳后,运动组小鼠海马MDA含量显著增高(P<0.01),T-AOC显著下降(P<0.01);各服药组小鼠海马MDA含量明显低于运动组(P<0.05),T-AOC显著高于运动组(P<0.01);各服药组小鼠游泳至力竭的时间明显延长(P<0.05)。结论:小鼠在进行一次力竭运动后,海马内脂质过氧化水平升高,总抗氧化能力下降;服用北冬虫夏草、辽东木及人参能够降低力竭游泳小鼠海马脂质过氧化水平,提高总抗氧化能力,并延缓疲劳的发生。     

A scale-based approach to interdisciplinary research and expertise in sports

After more than 20 years since the introduction of ecological and dynamical approaches in sports research, their promising opportunity for interdisciplinary research has not been fulfilled yet. The complexity of the research process and the theoretical and empirical difficulties associated with an integrated ecological-dynamical approach have been the major factors hindering the generalisation of interdisciplinary projects in sports sciences. To facilitate this generalisation, we integrate the major concepts from the ecological and dynamical approaches to study behaviour as a multi-scale process. Our integration gravitates around the distinction between functional (ecological) and execution (organic) scales, and their reciprocal intra- and inter-scale constraints. We propose an (epistemological) scale-based definition of constraints that accounts for the concept of synergies as emergent coordinative structures. To illustrate how we can operationalise the notion of multi-scale synergies we use an interdisciplinary model of locomotor pointing. To conclude, we show the value of this approach for interdisciplinary research in sport sciences, as we discuss two examples of task-specific dimensionality reduction techniques in the context of an ongoing project that aims to unveil the determinants of expertise in basketball free throw shooting. These techniques provide relevant empirical evidence to help bootstrap the challenging modelling efforts required in sport sciences.     

Bulgarian pirates: At the world's end

The present article compares the strategies of the legitimation of piracy developed by Western authors such as Richard Stallman and Larry Lessig with those developed by everyday Bulgarian pirates. It attempts to escape from the usual debate between the entertainment industries and the supporters of free culture, and to open the field for new perspectives. In Bulgaria it is precisely “free” as in “free beer” that matters, since the prices of cultural products tend to be too high for the Bulgarian market. In many cases, there is no possible legal access to the cultural products desired. The digital library “Chitanka” illustrates how piracy as bottom-up initiative compensates for the lack of successful public policies oriented towards visually impaired people and Bulgarian emigrants abroad. Although mobility and de-territorialisation have made piracy possible, it is perceived as a deeply national cause. The article emphasises that a difference should be made between open non-commercial projects as “Chitanka” and commercial torrent trackers, which thrive in the grey economy and abuse the symbolic capital of free culture. Piracy should be analysed at the intersections of global economic shifts and their local repercussions, of transnational culture flows and local culture infrastructure. Only this kind of an approach is likely to help us trace the unstable border between the cases in which digital piracy is a problem of the grey economy, and those in which it offers original non-market solutions to deeper structural problems.     

磁场和自由界面热流下二维液态锡膜流的传热模拟

液态金属偏滤器具有自修复和热负荷能力,因此成为偏滤器的重要设计方案。偏滤器上的液态金属膜流处于磁场和高强度热流下,且装置运行时产生的低频扰动会使薄膜流动发展为毛细孤立波。在毛细孤立波膜流中,波谷位置的毛细分离涡会显著增强该区域的对流换热。研究雷诺数为58的液态锡毛细孤立波膜流在底壁附近的换热现象。结果表明：无外加磁场和自由界面热流时,液态锡毛细孤立波薄膜流动复现了努塞尔数在波谷位置显著增强的现象;仅施加磁场时,由于洛伦兹力的阻尼效应,毛细分离涡处的换热增强效果被抑制;仅施加热流时,由于膜流被加热,总换热量增加,导致努塞尔数分布更均匀;同时施加磁场和热流时,两者的作用会叠加。     

国际经验对海南自由贸易港规划建设的启示

海南自由贸易港规划建设不仅是海南自身发展的需要,也是中国深化改革、扩大开放、实现经济转型及应对国际竞争与挑战的重要战略举措.本文在总结与归纳自由贸易区的含义、类型以及发展经验的基础上,对海南自由贸易港建设的基础与条件、功能与作用、属性与类型、产业选择、空间结构、监管模式、政策法规、营商环境以及风险防控等方面作了系统分析...     

Putting school commercialism in context: a global history of Junior Achievement Worldwide

The literature on school commercialism, despite a number of successes in battling advertising and marketing in schools, has often seemed to only scratch the surface of corporatization of K‐12 education. While condemning corporations who seek to sell brand‐name products to kids in schools is a relatively straightforward matter, critiquing corporate efforts to promote ideologies, identities, values and agendas to children and youth is far more complicated and yet, essential. In this paper, we take the example of Junior Achievement Worldwide, one of the world’s oldest, largest, and fastest growing organizations promoting corporate interests in schools in the USA and beyond to illustrate the need to address school commercialism in a broad historical, curricular, and global context. We review the long history of Junior Achievement in the USA, its vast set of curriculum offerings in enterprise, financial literacy, economics, work readiness and life skills, and its dramatic expansion, since the late 1980s, to now reach more than eight million students every year in over 100 countries around the world.     

单自由度体系频率分析的教学探究

各质点惯性力不共线的单自由度体系的频率分析,是结构动力学教学中的一个难点。文章利用理论力学中的知识,将单自由度质点系平动时的频率计算公式ω=1/（mδ）推广到了单自由度质点系转动时的的频率计算问题,并给出了相应的转动柔度系数的确定方法。这样的处理也启发了学生将各门课程的知识进行融会贯通。     

论文学翻译加注

随着文化翻译论的兴起,翻译加注的处理方式日益为人推崇。勿庸置疑,对于文化交流而言,翻译加注是一种重要的手段。然而该手段并非没有局限性,而且文学翻译并不是非要处处体现文化,多数情况下,信息传递重于文化传播。因此加注要客观合理,不为加注而加注。结合翻译理论与实践,本文提出了＂尽可能不加注＂的观点。