首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   170篇
  免费   5篇
教育   123篇
科学研究   14篇
各国文化   4篇
体育   14篇
文化理论   3篇
信息传播   17篇
  2023年   2篇
  2022年   5篇
  2021年   4篇
  2020年   5篇
  2019年   9篇
  2018年   9篇
  2017年   11篇
  2016年   15篇
  2015年   8篇
  2014年   12篇
  2013年   26篇
  2012年   12篇
  2011年   4篇
  2010年   4篇
  2009年   6篇
  2008年   3篇
  2007年   5篇
  2006年   3篇
  2005年   1篇
  2004年   8篇
  2003年   2篇
  2002年   1篇
  2001年   1篇
  2000年   1篇
  1999年   3篇
  1997年   1篇
  1996年   2篇
  1995年   4篇
  1994年   1篇
  1991年   2篇
  1987年   1篇
  1986年   1篇
  1980年   1篇
  1975年   1篇
  1956年   1篇
排序方式: 共有175条查询结果,搜索用时 15 毫秒
161.
162.
This paper examines the early history of the Friuli Mosaic School (FMS), an Italian arts and crafts school specialising in mosaic and terrazzo. The history of the FMS opens up a rare window into an often-overlooked field in the history of education: arts and crafts schools in Fascist Italy (1922–1943). Then, the FMS excelled in mosaic education and production and gained the trust of the regime, which notably commissioned the school to produce large mosaic works for the Foro Italico sports complex in Rome. Yet, as this paper contends, the FMS–Fascist Italy relationship was primarily functional rather than political. Similarly, the FMS adopted a pragmatic approach in times of economic hardship by becoming an active agent for its students and alumni who were compelled to emigrate. The migrant trajectory of alumnus Ettore Lorenzini to the United States was paradigmatic of this.  相似文献   
163.
In school effectiveness research differences between schools are mainly expressed in percentages of the variance in cognitive test scores. This article focuses on the impact these differences in effectiveness have on the school career of pupils. The analyses were executed on the data of a school effectiveness study carried out in 1987 and 1988. Two groups of outlier primary schools were selected. The pupils were divided into four categories based on their IQ-score, and into four categories based on their SES-score. Four dependent variables were used: test scores on language, test scores on mathematics, expectations for the follow-up secondary school type based on these test scores, and the actual secondary school recommendation given by the teacher. For all groups of pupils the average scores on mathematics, language and the total standard test score differ significantly for both low- and high-effective schools. The actual recommendation for type of secondary education does not differ significantly. This leads to the conclusion that the recommendations given to the other pupils in the same grade seem to be important; schools tend to recommend a secondary school type according to a normal distribution. High-effective schools tend to recommend beneath, while low-effective schools tend to advise above the expectations.  相似文献   
164.
Accountability systems in education generally include indicators of student performance. However, these indicators often differ considerably among the various systems. More and more countries try to include value-added measures, mainly because they do not want to hold schools accountable for differences in their initial intake of students. This study presents a conceptual framework of these value-added measures, resulting in an overview of 5 different types. Using data from Dutch secondary schools, we empirically provide estimates of these different measures. Our analyses show that the correlation between the different types of school effects estimated is rather high, but that the different models implicate different results for individual schools. Based on theoretical considerations, arguments are given to use the following indicators in the value-added accountability models: prior achievement, student-level background characteristics, and compositional characteristics of the student population.  相似文献   
165.
The film Black Swan, directed by Darren Aronofsky, provides a fruitful context for thinking about Deleuze's conceptualisation of structural transformation as a ‘presubjective’ process involving a critical and creative politics of engagement. Nina is a young dancer who has just secured the lead role in the New York Ballet's new production of Swan Lake. This role not only requires her to dance the pure and innocent character of the White Swan – a role that mirrors Nina's character in real life, and for which she is well suited – but also as the seductive and darkly erotic character of the Black Swan, a role quite alien to Nina. The film traces Nina's desperate efforts to meet the demands of this doubled characterisation. Through new forms of engagement with her peers, she enters into a ‘becoming-swan’ that frees her from the restraints and constraints imposed by her existing self. While this transformative process enables her to realise aesthetic perfection in her art, this comes at a heavy price: Nina not only is creatively destabilised, but ultimately is destroyed by the transformation she endures. By considering this work of cinema in light of Deleuze's writings on cinema, on ‘becoming-animal’, and on ‘Porcelain and Volcano’, this essay reflects upon a crucial question underlying much of Deleuze's political thought: how is it possible to privilege radical subjective and social transformation, without these structures of necessary coherence also ‘cracking up’ and being destroyed in the process?  相似文献   
166.
This work deals with state synchronization of heterogeneous linear agents with unknown dynamics. The problem is solved by formulating the synchronization problem as a special model reference adaptive control where each agent tries to converge to the model defined by its neighbors. For those agents that do not know the reference signal that drives the flock, a fictitious reference is estimated in place of the actual one: the estimation of such reference is distributed and requires measurements from neighbors. By using a matching condition assumption, which is imposed so that the agents can converge to the same behavior, the fictitious reference estimation leads to adaptive laws for the feedback and the coupling gains arising from distributed matching conditions. In addition, the coupling connection is not scalar as in most literature, but possibly vector-valued. The proposed approach is applicable to heterogeneous agents with arbitrarily large matched uncertainties. A Lyapunov-based approach is derived to show analytically asymptotic convergence of the synchronization error: robustification in the presence of bounded errors or unknown (constant) leader input is also discussed. Finally, a motivational example is presented in the context of Cooperative Adaptive Cruise Control and numerical examples are provided to demonstrate the effectiveness of the proposed method.  相似文献   
167.
Constrained control for stochastic linear systems is generally a difficult task due to the possible infeasibility of state constraints. In this paper, we focus on a finite control horizon and propose a design methodology where the constrained control problem is formulated as a chance-constrained optimization problem depending on some parameter. This parameter can be tuned so as to decide the appropriate trade-off between control cost minimization and state constraints satisfaction. An approximate solution is computed via a randomized algorithm. Precise guarantees about its feasibility for the original chance-constrained problem are provided. A numerical example shows the efficacy of the proposed methodology.  相似文献   
168.
169.
170.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号