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   3974篇
  免费   433篇
  国内免费   1篇
教育   3770篇
科学研究   19篇
各国文化   110篇
体育   82篇
文化理论   9篇
信息传播   418篇
  2023年   10篇
  2022年   14篇
  2021年   55篇
  2020年   103篇
  2019年   158篇
  2018年   195篇
  2017年   234篇
  2016年   163篇
  2015年   199篇
  2014年   229篇
  2013年   1172篇
  2012年   162篇
  2011年   182篇
  2010年   179篇
  2009年   146篇
  2008年   176篇
  2007年   102篇
  2006年   99篇
  2005年   104篇
  2004年   100篇
  2003年   54篇
  2002年   40篇
  2001年   44篇
  2000年   49篇
  1999年   44篇
  1998年   32篇
  1997年   23篇
  1996年   32篇
  1995年   34篇
  1994年   22篇
  1993年   25篇
  1992年   26篇
  1991年   20篇
  1990年   30篇
  1989年   12篇
  1988年   14篇
  1987年   16篇
  1986年   11篇
  1985年   15篇
  1984年   8篇
  1983年   9篇
  1982年   10篇
  1981年   3篇
  1980年   4篇
  1979年   5篇
  1978年   5篇
  1977年   3篇
  1976年   5篇
  1975年   7篇
  1974年   6篇
排序方式: 共有4408条查询结果,搜索用时 187 毫秒
101.
Over the past decade in the West, television cooking shows have popularized interest in the provenance of food against a backdrop of public concern about the practices of industrial food production. This article explores two series that offer self-sufficiency as a solution to the problem of industrial agriculture. Escape to River Cottage and Gourmet Farmer each centre on a narrative of a city-dweller moving to the country to set up a smallholding. With their nostalgia for an earlier—simultaneously unproblematic and emotionally fulfilling—time of food production, these series imagine a Utopian lifestyle in which audiences are encouraged to choose to produce and consume differently. That it is (middle-class) men who are rediscovering traditional food practices highlights how media discourses surrounding food production can become entangled in gendered representations that give rise to niche food products and experiences designed to ameliorate feelings of risk and uncertainty in contemporary food systems.  相似文献   
102.
103.
104.
The term selectively mute describes children who actively choose to speak to a few people in selected environments. It is most commonly used to describe nonverbal behavior in the school setting. In this paper, the literature from both the psychoanalytic and learning theory approaches is first reviewed and then the intervention strategies used with two selectively mute children are presented in terms of the underlying principles upon which the interventions were based. Implications for the school psychologist are discussed.  相似文献   
105.
Objective:This study compared the recall and precision of MeSH-term versus text-word searching to better understand psychosocial MeSH terms and to provide guidance on whether to include both strategies in an information literacy session or how much time should be spent on teaching each search strategy.Methods:Using the relevant recall method, a total of 3,162 resources were considered and evaluated to form a gold standard set of 1,521 relevant resources. We compared resources discussing psychosocial aspects of children and adolescents living with type 1 diabetes using two search strategies: text-word strategy versus MeSH-term strategy. The frequency of MeSH terms, the MeSH hierarchy, and elements of each search strategy were also examined.Results:Using the 1,521 relevant articles, we found that the text-word search strategy had 54% recall, while the MeSH-term strategy had 75% recall. Also, the precision of the text-word strategy was 34.4%, while the precision of the MeSH-term strategy was 47.7%. Therefore, the MeSH-term search strategy yielded both greater recall and greater precision. The MeSH strategy was also more complicated in design and usage than the text-word strategy.Conclusions:This study demonstrates the effectiveness of text-word and MeSH search strategies on precision and recall. The combination of text-word and MeSH strategies is recommended to achieve the most comprehensive results. These results support the idea that MeSH or a similar controlled vocabulary should be taught to experienced and knowledgeable students and practitioners who require a myriad of resources for their literature searches.  相似文献   
106.
The purpose of this study was to compare the usefulness of the Bayley Scales of Infant Development (BSID)-Mental Scales and the Battelle Developmental Inventory (BDI) in assessing the abilities of infants and toddlers from teen-parent families. The 34 children lived with their mothers, who ranged in age from 15 to 21. The results of the study indicate that these two developmental instruments cannot be used interchangeably and that one needs to look beyond the psychometric data in order to understand the results of infant and toddler assessment. The correlation between the BSID-Mental Development Index (MDI) and BDI Total score was −.03.  相似文献   
107.
108.
109.
110.
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