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   141篇
  免费   2篇
教育   81篇
科学研究   15篇
体育   26篇
信息传播   21篇
  2023年   2篇
  2022年   2篇
  2021年   3篇
  2020年   1篇
  2019年   2篇
  2018年   9篇
  2017年   4篇
  2016年   4篇
  2015年   4篇
  2014年   5篇
  2013年   23篇
  2012年   8篇
  2011年   6篇
  2010年   6篇
  2009年   3篇
  2008年   1篇
  2007年   5篇
  2006年   6篇
  2005年   5篇
  2004年   2篇
  2003年   3篇
  2002年   1篇
  2001年   3篇
  2000年   4篇
  1999年   2篇
  1997年   1篇
  1992年   1篇
  1991年   4篇
  1990年   3篇
  1989年   2篇
  1988年   1篇
  1985年   1篇
  1984年   1篇
  1982年   4篇
  1981年   1篇
  1980年   2篇
  1978年   1篇
  1974年   2篇
  1971年   1篇
  1970年   2篇
  1959年   1篇
  1923年   1篇
排序方式: 共有143条查询结果,搜索用时 15 毫秒
61.
62.
The article presents a survey on usage statistics management in academic libraries in France. The objective is to provide empirical evidence on real methods and processes, best practices and problems experienced by librarians. The survey adapted Baker and Read's methodology to the French context. One‐third of French academic libraries answered the survey. Results show that usage statistics are crucial for librarians' daily work. COUNTER reports are mostly used, specifically the JR1 format. Two‐thirds of the libraries enhance the usage statistics with other data. Librarians face three major difficulties: lack of time, lack of usage data produced by French vendors, and the need for customized tools. The article contains a short literature review and ends with recommendations for further studies. It is the first published survey on usage data management in France and allows for comparison with results from other countries.  相似文献   
63.

The Science Foundation Programme (SFP) was launched in 1991 at the University of Natal, Pietermaritzburg, South Africa in an attempt to equip a selected number of matriculants from historically disadvantaged schools with the skills, resources and self-confidence needed to embark on their tertiary studies. Previous research within the SFP biology component suggests that a major contributor to poor achievement and low retention rates among English second language (ESL) students in the Life Sciences is the inadequate background knowledge in natural history. In this study, SFP student background knowledge was assessed along a continuum of language dependency using a set of three probes. Improved student performance in each of the respective assessments examined the extent to which a sound natural history background facilitated meaningful learning relative to ESL proficiency. Student profiles and attitudes to biology were also examined. Results indicated that students did not perceive language to be a problem in biology. However, analysis of the student performance in the assessment probes indicated that, although the marine course provided the students with the background knowledge that they were initially lacking, they continued to perform better in the drawing and MCQ tools in the post-tests, suggesting that it is their inability to express themselves in the written form that hampers their development. These results have implications for curriculum development within the constructivist framework of the SFP.  相似文献   
64.
The issue whether creationist accounts of the origins of life should be taught in science education alongside or even instead Darwin’s theory of evolution is controversial in many countries. In 2002 there was a controversy around teaching creationism in science classes at a secondary school in England. The research presented in this paper uses this controversy around teaching creationism/evolution as case study to find out more about the public representation of science education. Here it focuses on the question who the experts were that appeared in the press coverage and examines the role of scientific experts in this controversy. Expertise is a key resource in many public controversies involving science and can also have an impact on decision-making processes and on the public opinion. Also the way expert sources are presented in media accounts of socio-scientific controversies can have an effect on how their credibility is perceived and the arguments being made.  相似文献   
65.
66.
The development of pedagogical science in eighteenth‐century Germany unfolded in close connection with the emergence of the modern bourgeoisie and its emancipation from a still absolutist society. While social and political structures in Britain and France were changed by revolutions, the relative weakness of the German bourgeoisie led to the adoption of a reformist strategy to effect social modernization. In this context, pedagogics, education, schools and schooling became a vital means of political and economic transformation towards a modern, bourgeois‐capitalist society. Therein the emergence of modern pedagogical thought and the development of the bourgeoisie were mutual preconditions: several initially quite disparate strands of thought coalesced to form a new pedagogical thinking in Germany during the later Enlightenment. The essay reconstructs how new thinking emerged by charting the integration of two bodies of knowledge into this renewal and refounding of pedagogics: the transformation of elements of rhetoric into building blocks of modern pedagogical thought, on the one hand, and of gender anthropology as its foundation, on the other.  相似文献   
67.
R&D outsourcing is often conducted during the early, market-distant stages of the innovation process. However, the main obstacle to this potentially efficient interfirm specialization is the high danger of moral hazard. Most organizational mechanisms fail to control that type of opportunism because of information asymmetries, even ex post. In the theory of incomplete contracts, this problem is mitigated by assigning the control rights to the supplier. To date, empirical studies have mainly investigated the interfirm distribution of the control rights. However, we do not know yet which concrete control right is crucial with regard to supplier opportunism, which is the decisive dependent variable. Our study addresses this research gap. For the first time, we extend the empirical focus from biotechnology and pharmaceutical firm alliances to a cross-industry sample of 113 collaboration cases. The results show the effectiveness of contracts that ex ante assign patent ownership rights to the supplier. The findings are also relevant for management practice because the majority of practitioners do not use this contract type yet, although there is no sign of an effective alternative.  相似文献   
68.
69.
70.
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