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李武明 《通化师范学院学报》2003,24(4):5-7
以Clifford代数为工具，讨论Minkowski平面的几何性质，指明应用Clifford代数在计算机上实现Minkowski几何研究的可行性。 相似文献
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A study of multimodal motherese: the role of temporal synchrony between verbal labels and gestures 总被引：1，自引：0，他引：1
This study examined European American and Hispanic American mothers' multimodal communication to their infants (N = 24). The infants were from three age groups representing three levels of lexical-mapping development: prelexical (5 to 8 months), early-lexical (9 to 17 months), and advanced-lexical (21 to 30 months). Mothers taught their infants four target (novel) words by using distinct objects during a semistructured play episode. Recent research suggests that young infants rely on temporal synchrony to learn syllable-object relations, but later, the role of synchrony diminishes. Thus, mothers' target and nontarget naming were coded for synchrony and other communication styles. The results indicated that mothers used target words more often than nontarget words in synchrony with object motion and sometimes touch. Thus, "multimodal motherese" likely highlights target word-referent relations for infants. Further, mothers tailored their communication to infants' level of lexical-mapping development. Mothers of prelexical infants used target words in synchrony with object motion more often than mothers of early- and advanced-lexical infants. Mothers' decreasing use of synchrony across age parallels infants' decreasing reliance on synchrony, suggesting a dynamical and reciprocal environment-organismic relation. 相似文献
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ROGER SÄLJÖ 《教育心理学家》2013,48(3):202-208
Over the past decades research on learning has become more diverse and complex. The concern expressed by Alexander, Schallert, and Reynolds (2009/this issue) is that this diversity of theoretical perspectives has resulted in a fragmentation that is destructive to the field. Although it is important to engage in explicit discussions of how learning is construed in different traditions, Alexander et al. do not give sufficient recognition to the significant epistemological and theoretical differences between traditions; differences that make them incompatible in important respects, for instance, with respect to their units of analysis. An acceptance of incompatibilities in perspectives is not necessarily a problem. In fact, such a situation may, if the debates are grounded in a mutual acceptance of the diverse manners in which knowing and learning may be theorized, give us a richer frame of reference from which to analyze learning in its various manifestations in complex societies. 相似文献
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李端 《邯郸职业技术学院学报》2005,18(1):33-34
在香港经济经历数次冲击之后，中央政府为促进内地和香港特别行政区经济的共同繁荣与发展，加强双方与其他国家和地区的经贸联系，达成了《内地与香港关于建立更紧密经贸关系的安排》(简称CEPA)。CEPA的实施使香港和内地的房地产业取长补短，优势互补，尤其令内地的房地产业加快了由相对“封闭”走向开放、走向国际化的步伐。 相似文献
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LJ Slovin 《Sex education》2016,16(5):520-533
In this paper, I draw on observations from sexual health workshops in an elementary school classroom in Vancouver, Canada and friendship pair interviews with four boys who attended the workshops. I examine how the educators organising the workshops constructed sexual health, highlighting their reliance on both a ‘gay is okay’ and a scientific discourse. I argue that by locating their discussion of homosexuality within a values framework and striving to depict gay relationships as acceptable, they simultaneously constituted homosexuality as requiring acceptance. Likewise, by subsuming references to heterosexuality within their lesson on (hetero)sexual reproduction, they framed heterosexuality as an always already accepted scientific fact. Having set the scene in this way, I then explore the ways the boys both took up and deviated from these discourses when constructing their own narratives. 相似文献
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Discrimination and memory for video films of women performing different activities was investigated in 5.5 month-old infants. In Experiment 1, infants (N = 24) were familiarized to the faces of one of three women performing one of three repetitive activities (blowing bubbles, brushing hair, and brushing teeth). Overall, results indicated discrimination and memory for the actions but not the faces after both a 1-min and a 7-week delay. Memory was demonstrated by a visual preference for the novel actions after the 1-min delay and for the familiar actions after the 7-week delay, replicating prior findings that preferences shift as a function of retention time. Experiment 2 (N = 12) demonstrated discrimination and memory for the faces when infants were presented in static poses at the 1-min delay, but not the 7-week delay. In Experiment 3 (N = 18), discrimination of the actions was replicated, but no discrimination among the objects embedded in the actions (hairbrush, bubble wand, toothbrush) was found. These findings demonstrate the attentional salience of actions over faces in dynamic events to 5.5 month-olds. They highlight the disparity between results generated from moving versus static displays in infancy research and emphasize the importance of using dynamic events as a basis for generalizing about perception and memory for events in the real world. 相似文献
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论新时期女性青年的体育文化创造 总被引：1，自引：0，他引：1
当代城市取向的深刻变化，使体育化建设迅猛发展。新时期青年女性通过自身的性别优势在自觉与不自觉中创造着独特的现代体育化，日益成为体育化的重要载体和创生，是富有特殊聚焦能力的体育化创造群体。 相似文献
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李宏图 《华东师范大学学报(哲学社会科学版)》2002,34(2):3-11
托克维尔出身于贵族家庭，但是他却理性地认为贵族制必然衰落，民主社会必然到来，民主是现代社会的重要特征。于是，托克维尔分析了贵族式自由的特征、价值、弊端以及民主的本质。他相信在一个民主的时代，自由不可能建立在贵族政治体制的基础之上；与此同时，他特别感兴趣的是如何避免民主专制主义，以及如何避免以民主的名义破坏自由。因此，托克维尔期望即将到来的社会不仅是一个民主的社会，而且是一个自由的社会；在这个社会中，民主和自由的结合会得以实现。 相似文献
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人类面临的全球性问题构成了人类教育的氛围,人类的困境人人都必须分担,人类的生存和发展同样取决于各国人民和所有国家间的合作,国际教育已成为建树道义和增强人类团结的最有力的工具。２１世纪的国际教育应当对一切社会里进行的人类价值观的教学和实践确定一个普适的方向,以促成一种新的同心同德与合作的化的形成,追求人的价值应成为２１世纪国际教育的基本目标,以人为基础的学习应是２１世纪国际教育的基本内容和方法。 相似文献
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