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   13021篇
  免费   201篇
  国内免费   21篇
教育   9033篇
科学研究   1508篇
各国文化   125篇
体育   1147篇
综合类   6篇
文化理论   98篇
信息传播   1326篇
  2021年   137篇
  2020年   195篇
  2019年   267篇
  2018年   367篇
  2017年   350篇
  2016年   356篇
  2015年   238篇
  2014年   314篇
  2013年   2306篇
  2012年   291篇
  2011年   315篇
  2010年   278篇
  2009年   220篇
  2008年   267篇
  2007年   241篇
  2006年   232篇
  2005年   207篇
  2004年   228篇
  2003年   204篇
  2002年   176篇
  2001年   444篇
  2000年   291篇
  1999年   253篇
  1998年   117篇
  1997年   148篇
  1996年   122篇
  1995年   118篇
  1994年   132篇
  1993年   98篇
  1992年   167篇
  1991年   173篇
  1990年   177篇
  1989年   182篇
  1988年   153篇
  1987年   153篇
  1986年   153篇
  1985年   193篇
  1984年   150篇
  1983年   126篇
  1982年   120篇
  1981年   113篇
  1980年   107篇
  1979年   154篇
  1978年   119篇
  1977年   105篇
  1976年   77篇
  1975年   104篇
  1974年   95篇
  1973年   101篇
  1971年   85篇
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
61.
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   
62.
63.
64.
We theorize about the strategic alignment of computing with organizational mission, using the Commonwealth of Pennsylvania's efforts to pursue digital government initiatives as evidence. To do this we draw on a decade (1995–2004) of changes in Pennsylvania to characterize how a state government shifts from an organizational to an enterprise perspective regarding computing. We document and analyze the strategic and operational aspects of a series of information and communications technology (ICT) planning efforts to highlight the nature and roles of strategic alignment used to achieve this transition. Findings from this analysis mark the importance of combining several approaches to strategic planning regarding the adoption and application of ICT.  相似文献   
65.
66.
This study explores faculty deposits in institutional repositories (IR) within selected disciplines and identifies the diverse navigational paths to IR sites from library Web site homepages. The statistical relationship between the development of an IR and the presence of a Web site dedicated to the reform of traditional scholarly communication is also explored. The implications for the development of institutional repositories are highlighted.  相似文献   
67.
68.
This paper explores surviving documentation and what it reveals about the underlying social structure and relations in a historic time and place. The mid-nineteenth century is chosen as a period prior to modern bureaucracies so that documents are not found in defining filing systems. Some six hundred documents are studied individually and characterized collectively. They are examined not to tell a story, however, but for evidence of their creation and maintenance and of their physical types, functional characteristics, and relations between authors and recipients. The study reveals the fruitfulness of such an orientation to documents, which complements traditional historical uses that emphasize document content.  相似文献   
69.
70.
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