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   9007篇
  免费   105篇
  国内免费   10篇
教育   6162篇
科学研究   1172篇
各国文化   52篇
体育   640篇
综合类   4篇
文化理论   59篇
信息传播   1033篇
  2022年   57篇
  2021年   107篇
  2020年   145篇
  2019年   193篇
  2018年   315篇
  2017年   290篇
  2016年   284篇
  2015年   169篇
  2014年   286篇
  2013年   1463篇
  2012年   211篇
  2011年   248篇
  2010年   209篇
  2009年   187篇
  2008年   231篇
  2007年   195篇
  2006年   176篇
  2005年   161篇
  2004年   183篇
  2003年   135篇
  2002年   138篇
  2001年   204篇
  2000年   206篇
  1999年   189篇
  1998年   102篇
  1997年   128篇
  1996年   114篇
  1995年   78篇
  1994年   104篇
  1993年   72篇
  1992年   173篇
  1991年   130篇
  1990年   123篇
  1989年   154篇
  1988年   134篇
  1987年   106篇
  1986年   116篇
  1985年   117篇
  1984年   86篇
  1983年   99篇
  1982年   61篇
  1981年   75篇
  1980年   68篇
  1979年   106篇
  1978年   80篇
  1977年   66篇
  1976年   63篇
  1975年   52篇
  1974年   65篇
  1973年   60篇
排序方式: 共有9122条查询结果,搜索用时 15 毫秒
31.
This study, an historical survey of medical journals in Louisiana before the outbreak of the Civil War in 1861, revealed that nine journals made an appearance during the period covered-all of them published in New Orleans. Of these, two were French language journals published by a French medical society. The others were all published by individuals rather than by professional societies. Medical practices, interests, and problems of the times were clearly reflected on the pages of the journals. It is evident that medical journalism reached a high plane in the era before the Civil War. Of the nine periodicals, only one emerged as a permanent publication after the War.  相似文献   
32.
The history of nursing education in America is briefly told, with the growth of education in institutions of higher learning emphasized. Two trends in nursing education are paralleled by similar developments in nursing literature. The growth of scholarship in nursing is also noted. It is pointed out that nursing is a discipline in its own right, and that training for leadership is required. Continuing education programs are mentioned, together with the increase in nursing literature. Integrated libraries for the health sciences are recommended.  相似文献   
33.
34.
This paper discusses the evaluation of scientific activity with the help of some scientometric indices, in particular, a citation index. The information massif of the bibliographic database of citations to domestic publications of Kazakh authors is statistically described.  相似文献   
35.
36.
With the plethora of health sites on the Internet, it is sometimes hard to know where to start. This is a basic list of health sites that either cover a subject area comprehensively, or are good general sites to lead to more specific information. Most of these sites include both full-text information as well as links to many other sites on the World-Wide Web. Included are medical, nursing, dental, alternative health, consumer health, organization, and government sites.  相似文献   
37.
Among the huge maze of resources available on the Internet, UnCoverWeb stands out as a valuable tool for medical libraries. This up-to-date, free-access, multidisciplinary database of periodical references is searched through an easy-to-learn graphical user interface that is a welcome improvement over the telnet version. This article reviews the basic and advanced search techniques for UnCoverWeb, as well as providing information on the document delivery functions and table of contents alerting service called Reveal. UnCover's currency is evaluated and compared with other current awareness resources. System deficiencies are discussed, with the conclusion that although UnCoverWeb lacks the sophisticated features of many commercial database search services, it is nonetheless a useful addition to the repertoire of information sources available in a library.  相似文献   
38.
39.
40.
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