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   17811篇
  免费   273篇
  国内免费   125篇
教育   12397篇
科学研究   2158篇
各国文化   168篇
体育   1565篇
综合类   12篇
文化理论   146篇
信息传播   1763篇
  2021年   129篇
  2020年   249篇
  2019年   366篇
  2018年   516篇
  2017年   467篇
  2016年   471篇
  2015年   296篇
  2014年   399篇
  2013年   3145篇
  2012年   377篇
  2011年   409篇
  2010年   301篇
  2009年   309篇
  2008年   334篇
  2007年   349篇
  2006年   335篇
  2005年   328篇
  2004年   299篇
  2003年   309篇
  2002年   298篇
  2001年   297篇
  2000年   301篇
  1999年   309篇
  1998年   165篇
  1997年   184篇
  1996年   217篇
  1995年   202篇
  1994年   149篇
  1993年   166篇
  1992年   237篇
  1991年   257篇
  1990年   251篇
  1989年   286篇
  1988年   229篇
  1987年   239篇
  1986年   245篇
  1985年   268篇
  1984年   238篇
  1983年   233篇
  1982年   201篇
  1981年   187篇
  1980年   170篇
  1979年   268篇
  1978年   201篇
  1977年   192篇
  1976年   158篇
  1975年   140篇
  1974年   158篇
  1973年   136篇
  1971年   121篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
51.
52.
53.
"Change" is a critical dimension of contemporary experience. Library associations are not exempt, and they change in ways similar to other organizations. According to some authorities, four phases typify the process: diagnosis, design, implementation, and incorporation. Focusing on changes in the Medical Library Association's longstanding program of continuing education, the authors utilize the "phase framework" to chart that association's movement from a management system depending primarily upon volunteers to one in which professional staff figure prominently. The historical review serves a heuristic purpose for individuals and institutions in identifying characteristic features of the change process.  相似文献   
54.
55.
Time series analysis was used to investigate the hypothesis that during acquisition of a motor skill, knowledge of results (KR) information is used to generate a stable internal referent about which response errors are randomly distributed. Sixteen subjects completed 50 acquisition trials of each of three movements whose spatial-temporal characteristics differed. Acquisition trials were either blocked, with each movement being presented in series, or randomized, with the presentation of movements occurring in random order. Analysis of movement time data indicated the contextual interference effect reported in previous studies was replicated in the present experiment. Time series analysis of the acquisition trial data revealed the majority of individual subject response patterns during blocked trials were best described by a model with a temporarily stationary, internal reference of the criterion and systematic, trial-to-trial variation of response errors. During random trial conditions, response patterns were usually best described by a "White-noise" model. This model predicts a permanently stationary, internal reference associated with randomly distributed response errors that are unaffected by KR information. These results are not consistent with previous work using time series analysis to describe motor behavior (Spray & Newell, 1986).  相似文献   
56.
57.
58.
The current societal and professional context presents a variety of ethical challenges to decision makers. The importance of educational preparation for ethical decision-making and ethical leadership has been addressed in the literature of library and information science (LIS), among other professions. However, it can be quite difficult to measure the impact of professional ethics education on students. This article is based on an evaluation of published original research related to ethics education in disciplines supported by professional education, including education, nursing, allied health, journalism, social work, public health, engineering, and LIS. The study considers data related to research design, methodologies used, populations studied, approaches to measuring impact, levels of impact, and publication in the journal literature. Results indicate more extensive research in education and nursing as compared with other fields, a lack of baseline data gathering for comparison, a reliance on a limited number of data-gathering techniques, and a tendency toward studying alumni over current students  相似文献   
59.
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