技术动作教学中语言纠错法的应用

与其他学科相比,体育教学中语言纠错法使用较少,而其中技术动作教学中语言纠错法就更少,尤其是在动作技能形成初期,所以才会有"少动口,多动手,动手优于动口"的总结。但是不能因此就否定语言纠错法的作用。从心理学角度分析语言纠错法的重要性及应用,并提出相关意见,从而更好地指导体育教学。     

Digital maker-entrepreneurs in open design: What activities make up their business model?

The business models of digital maker-entrepreneurs in open design are inextricably linked to the broader open design community. Digital makers share designs on online platforms such as Thingiverse and use digital manufacturing technology such as 3-D printing as a generative mechanism for their entrepreneurial activities. There is a general understanding of how sharing works in that community and the basic design parameters that determine the business models of these digital maker-entrepreneurs, which are based on a portfolio of activities. This study is based on in-depth interviews with 11 digital maker-entrepreneurs from the open design community. We investigate the activities that constitute their business models using activity theory as a lens with which better to understand them. This study provides a perspective on the complexity of the relationships in which these activities are embedded and analyzes the activities related to the production, distribution, and consumption of value. Finally, we examine the exchanges between digital maker-entrepreneurs in the community, shedding light on how digital maker-entrepreneurs share and exchange goods, services, and knowledge as peers.     

资本运动的内生机制、体制转轨与资本化

新时期中国改革过程中的资本化运动, 既不是旧中国用以剥削工人为外国资本家、官僚买办资产阶级以及民族资产阶级带来剩余价值的价值———那样意义上的“效仿”; 也不是照搬西方模式盲目“引进”的西式“复兴”; 同时也相异于某些前社会主义国家私有化进程中的“休克疗法”或“大爆炸”式“转型”。它是兼用“激活”资本技术范畴内的功能与“消解”历史范畴资本过度表现的矛盾这样两个方面的技巧, 使其尽可能在“激扬”的环境中有效而有序运行的富有当代中国特色的创新     

Trajectories to reconcile sharing and commercialization in the maker movement

Maker technologies, including collaborative digital fabrication tools like 3-D printers, enable entrepreneurial opportunities and new business models. To date, relatively few highly successful maker startups have emerged, possibly due to the dominant mindset of the makers being one of cooperation and sharing. However, makers also strive for financial stability and many have profit motives. We use a multiple case study approach to explore makers’ experiences regarding the tension between sharing and commercialization and their ways of dealing with it. We conducted interviews with maker initiatives across Europe including Fab Labs, a maker R&D center, and other networks of makers. We unpack and contextualize the concepts of sharing and commercialization. Our cross-case analysis leads to a new framework for understanding these entrepreneurs’ position with respect to common-good versus commercial offerings. Using the framework, we describe archetypal trajectories that maker initiatives go through in the dynamic transition from makers to social enterprises and social entrepreneurs.     

近三十年来湖南保路运动与辛亥革命研究综述——纪念辛亥革命100周年

20世纪初兴起的保路运动成为辛亥革命的先导,而其首发地在湖南。因此湖南保路运动已成为学术界研究的热点。研究主要集中在粤汉铁路路权问题、保路运动定位问题、运动走向沉寂的原因问题、立宪派与革命派关系以及湖南保路运动与其他各省保路运动的差异等方面。总的说来,该领域研究在广度和深度上都有可喜的发展,但是目前仍有不足之处,研究资料仍需进一步挖掘整理。     

增加证券市场透明度与改善市场质量

根据市场微观结构理论 ,证券市场透明度变化显著影响市场效率与投资者福利。近年来 ,基于增加市场透明度将促进市场效率及公平的信念 ,许多证券监管当局试图建立高度透明甚至完全透明的证券市场。然而 ,本文的分析表明 ,增加透明度并不一定改善市场质量 ,其对市场效率与投资者福利的影响十分复杂 ,监管当局应当根据市场特征建立适度透明而不是过度透明的信息披露制度 ,同时需要采取措施规制基于强制信息披露的市场操纵行为。本文最后对如何完善国内证券市场大宗交易制度提出了政策建议。     

Fair Trade: Dynamic and Dilemmas of a Market Oriented Global Social Movement

Fair Trade is analysed as a new economic social movement to the extent that it is based on new forms of collective action and directs its demands primarily to the market rather than to the State. In addition, it is intrinsically a global movement harnessing development goals to new market relations. It differs, however, from similar movements (organics, animal welfare) to the extent that it focuses primarily on traditional issues of redistributive justice rather than a new generation of rights and duties. Fair Trade is understood as having three components: (i) the organization of alternative trading networks; (ii) the marketing of Fair Trade labelled products through licensed conventional traders and retailers; and (iii) the campaign-based promotion of Fair Trade to change both purchasing practices and the rules of conventional trade. As a market oriented movement, Fair Trade relies crucially on the emergence of a new politicization of consumer activity comprising not only “consumer-activists” but also the State as consumer and a new layer of political consumers sensitive to issues of social justice in their daily purchasing practices.

全球化、失衡的双重运动与“内嵌的自由主义”——基于微观层面的探讨

基于微观层面探讨内嵌的自由主义困境之成因,作者试图提供一种自下而上的解释。分析表明,内嵌的自由主义之所以陷入困境,并非由于它在效率方面不尽如人意,也不能简单地将其归因于全球化的影响。事实上,内嵌的自由主义与新自由主义对应着两种不同性质的全球化。在两种全球化的不同际遇背后,折射出的是从内嵌到脱嵌的根本性转变。两者之争,其本质并非经济效率之争,而是政治力量之争。内嵌的自由主义困境之根源在于双重运动的失衡,即国内政治力量的消长与政治格局的根本性变化。如果人们希望政治钟摆回到一种在推动国际自由化进程的同时亦注重社会保护的状态,就必须期望双重运动的失衡将得到纠正。     

追踪列车定时运行操纵仿真建模研究

探讨了静态限速、动态限速、停车精度、旅客舒适度及机车操纵规范等机车操纵实际约束,以列车到达晚点时间最小为目标,提出了基于追踪列车动态限速计算、跟踪目标速度和停车反馈控制的追踪列车定时运行控制方法。模拟结果表明,使用该算法模拟多列车运行过程,列车可克服途中晚点干扰,通过调整目标速度尽可能地恢复正点运行,且停车精度可以控制在100mm以内,为实现基于运行图的列车群运行仿真提供了依据。     

马克思论农产品供求与价格运行规律的理论与实践

马克思并没有留给我们专门论述农产品供求与价格的著作。他对这一问题的论述分散在他的主要著作中。农产品价格是农产品供求相互作用的结果。农产品供给与需求弹性较小，决定了农产品价格与价值是由劣等地生产的商品调节的。从影响我国农产品生产与供给诸因素分析，我国农产品（尤其是粮食）供给偏紧的态势将长期存在，潜伏着我国农产品（尤其是粮食）价格上涨的压力。