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   32767篇
  免费   475篇
  国内免费   21篇
教育   23289篇
科学研究   3223篇
各国文化   267篇
体育   2431篇
综合类   15篇
文化理论   317篇
信息传播   3721篇
  2022年   208篇
  2021年   337篇
  2020年   489篇
  2019年   752篇
  2018年   1578篇
  2017年   1545篇
  2016年   1282篇
  2015年   596篇
  2014年   880篇
  2013年   5678篇
  2012年   867篇
  2011年   1078篇
  2010年   864篇
  2009年   754篇
  2008年   874篇
  2007年   874篇
  2006年   560篇
  2005年   608篇
  2004年   618篇
  2003年   527篇
  2002年   469篇
  2001年   613篇
  2000年   554篇
  1999年   497篇
  1998年   284篇
  1997年   327篇
  1996年   334篇
  1995年   292篇
  1994年   263篇
  1993年   260篇
  1992年   451篇
  1991年   399篇
  1990年   393篇
  1989年   412篇
  1988年   353篇
  1987年   382篇
  1986年   354篇
  1985年   397篇
  1984年   315篇
  1983年   294篇
  1982年   242篇
  1981年   225篇
  1980年   204篇
  1979年   347篇
  1978年   240篇
  1977年   222篇
  1976年   201篇
  1975年   181篇
  1974年   202篇
  1971年   180篇
排序方式: 共有10000条查询结果,搜索用时 18 毫秒
91.
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   
92.
93.
A user study of the Index Medicus done at the Walter Reed Army Medical Center included responses from a group of sixty researchers, clinicians, residents, and interns. An analysis of the questionnaire shows that, while all respondents use the Index Medicus, most use it to search for a specific subject or a specific author reference. Comments received were critical of the delay from the time of journal publication until the appearance of its citation in Index Medicus. Suggestions were offered concerning the type of publication most of the respondents would prefer.  相似文献   
94.
95.
96.
Serials, one of the more complicated areas of library technical endeavors, has lacked the benefit of standards for a long time. Even now, with standards beginning to be available, the majority of institutions are not working within standard serials formats. A survey to determine the use of serials standards in libraries was conducted in 1988 by the American Library Association, Resources and Technical Services Division, Serials Section, Committee to Study Serials Standards. In the spring of 1988 a survey was sent to a group encompassing the Association of Research Libraries members, CONSER participants, United States Newspaper Program participants, Microform Project libraries, and some vendors and librarians who attended the Committee meetings on a regular basis. The survey questionnaire assessed the current level of serials standards awareness of librarians and vendors. Topics included the type of serials systems used, standards relevant to serials control and union listing and whether or not they are implemented, types and levels of training staff received in the application of standards, benefits of the standards, and areas where standards are most needed.  相似文献   
97.
Information access is central to library and information science, yet explorations of its conceptual nature have been limited. Given the importance of information access to the discipline, there is a need for research to create a better understanding of the concept and its many roles in all activities and behaviors related to information. Drawing on the theoretical work of Elfreda Chatman, this article proposes that the study of information access can be facilitated through the recognition and examination of the physical, intellectual, and social aspects of information access. These types of access are examined through three case studies in terms of different information behaviors and contexts, with a particular focus on the importance of social access. The article also discusses the future roles that considerations of social access can play in research and theory.  相似文献   
98.
99.
彻底简化IT     
如何实现"简化IT"的战略,这是困扰很多企业,尤其是CIO的一个重要问题。本文以日本新生银行的例子来诠释如何彻底简化IT。中世纪哲人William of Ock- ham说过,理论应该尽可能的简单。同样的原则适用于企业IT系统:它们按照尽可能少的标准  相似文献   
100.
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