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   993篇
  免费   4篇
  国内免费   1篇
教育   757篇
科学研究   62篇
各国文化   9篇
体育   62篇
综合类   1篇
文化理论   7篇
信息传播   100篇
  2019年   8篇
  2018年   14篇
  2017年   12篇
  2016年   18篇
  2015年   9篇
  2014年   16篇
  2013年   238篇
  2012年   23篇
  2011年   21篇
  2010年   22篇
  2009年   17篇
  2008年   23篇
  2007年   27篇
  2006年   13篇
  2005年   12篇
  2004年   14篇
  2003年   15篇
  2002年   20篇
  2001年   20篇
  2000年   13篇
  1999年   11篇
  1998年   12篇
  1997年   13篇
  1996年   21篇
  1995年   13篇
  1994年   18篇
  1993年   24篇
  1992年   14篇
  1991年   20篇
  1990年   12篇
  1989年   20篇
  1988年   11篇
  1987年   13篇
  1985年   10篇
  1984年   13篇
  1983年   15篇
  1982年   17篇
  1981年   9篇
  1980年   12篇
  1979年   14篇
  1978年   13篇
  1977年   13篇
  1976年   10篇
  1975年   8篇
  1974年   11篇
  1973年   13篇
  1972年   10篇
  1971年   10篇
  1970年   9篇
  1967年   9篇
排序方式: 共有998条查询结果,搜索用时 15 毫秒
51.
52.
Goal-based scenarios (GBSs) have become a mainstay of Andersen Consulting’s 900 million dollar efforts to train its employees. Utilizing a theoretical framework based upon social constructivist theory, we create classroom learning environments that use theatrical elements to simulate real-world client engagements. The suspension of disbelief, however, is one factor that can be detrimental to human learning in immersive simulations. This paper describes one of our school designs, constructs a theoretical framework to support our approach, examines some of the factors associated with the suspension of disbelief, and makes recommendations for enhancing the authenticity of goal-based scenarios.  相似文献   
53.
54.
Humor produces psychological and physiological effects on our body that are similar to the health benefits of aerobic exercise. These benefits are some of the best kept secrets from those persons who probably have the most to gain from that information - older adults. Many of them who must live with chronic pain, arthritis, rheumatism, emphysema, memory loss, depression, and stress may be able to cope better with their conditions or find temporary relief by using humor. This article presents an up-to-date, comprehensive synthesis of 30 years of research evidence on 15 psychophysiological benefits of humor and laughter with their implications for older adults. The specific risks for this growing segment of the population also are identified. Strategies for communicating this information through publications and formal presentations by health educators working in gerontology are suggested. A curriculum outline is provided for use in developing short, feature presentations or integrating the content into existing exercise and health-related courses and programs. If these efforts are effective, eventually the health benefits of humor and laughter will be as familiar to our senior citizens as the risk factors associated with heart disease and smoking.  相似文献   
55.
56.
57.
It can be argued that agricultural science is one of the original forms of science education. However, over the past century, agricultural science education has habitually been perceived as an educational venue meant solely for production agriculturalists. When examining modern agricultural education we find it to be a minority within the broader field of science education, contradicting its historically stout scientific standing within the sciences. This educational shift leaves one to ponder the historic development of contemporary agricultural education. To gain deeper insight into these questions we reviewed the historical evolution of agricultural education within the United States. We then examined the professional habitus, or cultural nuances, associated with contemporary agricultural education. Next, we considered potential outcomes associated with the profession embracing post-modern perspectives within mainstream science and community-based education. Finally, we call for critical venues within agriculture education to question the status quo and challenge the acceptance of commonly held views.  相似文献   
58.
The comparative kilogram-price of an equivalent product group in international trade is a rough indication of underlying technological capability. Although there are many theoretical and practical difficulties involved in applying this approach to East-West trade, these difficulties can be minimised by a careful selection of product groups. In this connection, advanced chemical products are particularly suitable because the chemical industry is one in which both kilogram-prices and technological sophistication tend to increase hand-in-hand at successive stages of manufacture. The results of this enquiry are quite striking. From the standpoint of bilateral trade, the kilogram-prices of Soviet and East European exports to the EEC countries are consistently lower than those of corresponding imports from the EEC. Throughout the period 1960–1972 these differentials appears to be closing either very slowly or not at all, while the Soviet and East European share of the EEC marked has remained more or less constant or has declined since the mid-1960's. From the alternative perspective of the “neutral” Yugoslavian market, the kilogram-prices of EEC exports are again consistently higher than those obtained by the Comecon coun tries. Moreover, there has been a considerable eroson in the market share of the Comecon countries since the mid-1960's. These general findings are broadly in line with other kinds of estimates and suggest that in these relatively advanced and dynamic sectors of industry, Soviet and East European technology is at present substantially inferior to that of the Common Market countries.  相似文献   
59.
We develop and propose a new counting method at the aggregate level for contributions to scientific publications called modified fractional counting (MFC). We show that, compared to traditional complete-normalized fractional counting, it eliminates the extreme differences in contributions over time that otherwise occur between scientists that mainly publish alone or in small groups and those that publish with large groups of co-authors. As an extra benefit we find that scientists in different areas of research turn out to have comparable average contributions to scientific articles. We test the method on scientists at Norway’s largest universities and find that, at an aggregate level, it indeed supports comparability across different co-authorship practices as well as between areas of research. MFC is thereby useful whenever the research output from institutions with different research profiles are compared, as e.g., in the Leiden Ranking. Finally, as MFC is actually a family of indicators, depending on a sensitivity parameter, it can be adapted to the circumstances.  相似文献   
60.
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