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31.
《Journal of Statistical Computation and Simulation》2012,82(2-4):291-313
The construction and enumeration of (0, 1)-matrices with given line-sums is described for the rectangular cases often encountered in applications. Improved approximations are provided for the number of such matrices. Some new enumeration results for semi-regular bipartite graphs are included, and the related category of the quasi-semiregular bipartite graphs is recognized. The range of certain elements of products of a (0, I)-matrix is considered as a function of the line-sums. This, in turn, is related to the range in the numbers of interchanges available. Improvements in statistical practice that come from these constructions and enumerations are described. 相似文献
32.
Silje Anderdal Bakken Thomas Anton Sandøy Sveinung Sandberg 《Journal of youth studies》2017,20(10):1380-1395
This paper examines the evolving social identities of young adolescents in regard to alcohol and drinking culture in Norway. Detailed analysis of 29 focus group interviews and 32 individual interviews with 12–13-year-olds reveal a thorough negative attitude towards alcohol, especially when enjoyed by young people. Young adolescents found young people to be too irresponsible and immature to drink, while adults were portrayed as capable of enjoying alcohol without losing control or experiencing other negative effects. Through symbolic boundary work, they distanced themselves from adolescents who drank. The young adolescents rejected the idea that drinking alcohol was a sign of maturity; instead, they exhibited maturity by distancing themselves from drunk adolescents. We discuss how these findings reflect the participants’ socio-cognitive development, and how symbolic boundaries are often drawn against those closest in social distance. We conclude that boundaries between ‘adolescents’ and ‘adults’ are fundamental when understanding emerging adolescent social identities, especially when it comes to drinking and drinking culture. 相似文献
33.
Alexander D. Barder 《Globalizations》2016,13(4):396-408
Liberal international relations theory largely rests on the assumption that the contemporary international liberal order is robust enough to withstand crises of political authority and/or economic slumps. Yet, this raises a central question: what is a crisis in the deep principles of a global political and economic order? In this essay, I seek to rethink crisis theory in light of prevailing assumptions about the longevity of the contemporary liberal international order. I examine how catalysts of crises can be the effects of non-human actors that intensify or crystalize moments of instability. From global ecological feedback loops, to high-frequency trading and automated factories, the processes of production and distribution increasingly reflect global networks that transcend day-to-day human decisions. Rethinking systemic crisis necessitates understanding the ways in which non-human actants constitute and destabilize larger political assemblages. 相似文献
34.
The aim of this study was to analyze the use of representational gestures from a multimodal point of view in the transition from one-word to multi-word constructions. Twenty-one Spanish-speaking children were observed longitudinally at 18, 21, 24, and 30 months of age. We analyzed the production of deictic, symbolic, and conventional gestures and their coordination with different verbal elements. Moreover, we explored the relationship between gestural multimodal and unimodal productions and independent measures of language development. Results showed that gesture production remains stable in the period studied. Whereas deictic gestures are frequent and mostly multimodal from the beginning, conventional gestures are rare and mainly unimodal. Symbolic gestures are initially unimodal, but between 24 and 30 months of age, this pattern reverses, with more multimodal symbolic gestures than unimodal. In addition, the frequency of multimodal representational gestures at specific ages seems to be positively related to independent measures of vocabulary and morphosyntax development. By contrast, the production of unimodal representational gestures appears negatively related to these measures. Our results suggest that multimodal representational gestures could have a facilitating role in the process of learning to combine meanings for communicative goals. 相似文献
35.
付建成 《陕西学前师范学院学报》2020,36(5):116-121
延安时期,中国共产党的领袖们在党内政治生态建设方面进行了大量卓有成效的理论创新,阐明了党内政治生态建设的内在动力、基本规范、重要途径和根本保障。当前,我们党在全面从严治党过程中,严肃党内政治生活,净化党内政治生态,仍需要从延安时期党内政治生态建设历史经验中汲取营养。 相似文献
36.
37.
刘诗贵 《井冈山大学学报(社会科学版)》2012,33(5):37-41,120
应对"消费—生态"悖论,缓解生态危机,促进消费文明走向生态文明,企业应提高企业家和员工的生态道德素质,加强企业伦理建设,从而牢固树立生态消费理念,践行"合度"、"合宜"、"合道"的客观要求,实现经济合理性、生态合理性、伦理合理性的价值诉求,遵循环境友好,可持续发展,以人为本等基本原则,实施绿色、低碳的生态化模式,推进消费文明的发展。 相似文献
38.
宫福满 《河南理工大学学报(社会科学版)》2009,10(4)
在对当今我国高校学术生产现状进行考察分析的基础上,认为我国高校学术生产存在以下四种值得重视的倾向:学术研究功利化;学术成果形式化;学术评价简单化;学术风气浮躁化。文章对这四种不良倾向给我国高校学术生态带来的危害进行了阐述。 相似文献
39.
达尔文进化论不仅确立了重要的生态原则,而且这些原则具有十分丰富的科学意义。深入阐发达尔文进化论生态意义,有助于我们深化对人与自然的关系、人类在自然进化中的位置、人类文明发展与生态建设的关系等问题的认识。 相似文献
40.
明清以降来青早期移民的祖籍问题,民间和学术界一般都认为是在今天江苏省南京市、笔者以今天南京珠玑巷不可考为起点,经过对民间传说和历史资料的辨析查考,提出两种推论认为;所谓南京珠玑巷一是可能在今天浙江诸暨市(为同音之转),二是可能在今天河南省开封市(该地曾是旧县祥符)。由于自然和人文环境的变异、官方和民间话语修正的双重作用而使其发生了改变,并最终使这一文化符号在误读的情况下,被赋予了新的文化内涵。 相似文献