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   23853篇
  免费   370篇
  国内免费   103篇
教育   17053篇
科学研究   2181篇
各国文化   229篇
体育   1811篇
综合类   152篇
文化理论   115篇
信息传播   2785篇
  2022年   179篇
  2021年   310篇
  2020年   371篇
  2019年   538篇
  2018年   703篇
  2017年   746篇
  2016年   689篇
  2015年   496篇
  2014年   680篇
  2013年   4457篇
  2012年   698篇
  2011年   705篇
  2010年   638篇
  2009年   621篇
  2008年   634篇
  2007年   596篇
  2006年   605篇
  2005年   528篇
  2004年   382篇
  2003年   355篇
  2002年   346篇
  2001年   494篇
  2000年   419篇
  1999年   359篇
  1998年   209篇
  1997年   200篇
  1996年   231篇
  1995年   197篇
  1994年   205篇
  1993年   186篇
  1992年   311篇
  1991年   291篇
  1990年   309篇
  1989年   312篇
  1988年   244篇
  1987年   248篇
  1986年   254篇
  1985年   259篇
  1984年   243篇
  1983年   234篇
  1982年   204篇
  1981年   187篇
  1980年   191篇
  1979年   255篇
  1978年   225篇
  1977年   162篇
  1976年   170篇
  1975年   143篇
  1973年   142篇
  1971年   141篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
迪莉娅 《档案》2008,(6):41-43
2008年5月12日,汶川大地震一场巨大的灾难袭击了四川汶川,让几万中华儿女在地震中蒙难,举国哀思那些在灾难中离去的逝者。突如其来的自然灾害难以避免,但是,通过档案研究一个地区的灾难史,吸取经验教训,减少灾难的发生,是非常必要的。  相似文献   
82.
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   
83.
Conclusions Palestinian teachers at the pre-collegiate level who participate in the CEEPAT programme will, it is hoped, learn to place new emphasis on enhancement of their students' analytical skills and discourage an identification of knowledge with memorisation. For their part, Palestinian professors who have been trained to teach in the programme will presumably constitute a growing reservoir of talent which may be expected to raise the quality of Palestinian university education. Plans are now under way to give all Palestinians teaching under the auspices of CEEPAT an opportunity to attend an annual, three-week winter seminar in Gaza and/or a summer seminar in the United States, both of which will focus on issues of pedagogy and methodology. Such professors can be expected to pass on their new understanding of teaching via discussion to their colleagues and to their university students, thereby spreading an important pedagogical method to other segments of the Palestinian... community. 7 CEEPAT clearly has the potential to make a significant contribution to the elevation of educational standards in Palestine at a time of major historical change.In Palestine, higher education of quality is obviously a very serious business. It is understood that it underlies any possibility of individual betterment, economic development, or the evolution of an independent Palestinian state. If ever the Israeli occupation is completely terminated and the present financial crisis of the universities is solved, Palestinian university and post-baccalaureate training may reasonably be expected to become fully competitive on an international scale.  相似文献   
84.
The use of rural sites to train badly needed primary care providers requires access to sophisticated medical information not traditionally available outside of academic health centers. Medical reference librarians can play a key role in the development of primary care training sites in rural settings. Electronic information technologies, with proactive support from medical reference librarians, can provide current and detailed information without concern for distance from the health science center library. This paper discusses recent developments in technology, describes current challenges to the application of this technology in rural settings, and provides policy recommendations for medical reference librarians to enhance rural primary care training.  相似文献   
85.
Devising a coherent serials retrenchment plan while maintaining quality reference service is a dilemma faced by increasing numbers of medical librarians. In 1991, the staff of the Shiffman Medical Library, Wayne State University, began to address increasing serials budget reductions that by 1994 amounted to a projected 20% maximum cut. The resulting retrenchment plan combined an ongoing serials use study, faculty and librarian reviews of cancellation lists, and systematic refinements in interlibrary cooperation and document delivery service. The Shiffman plan provides a constructive framework that can be adapted to other medical libraries facing immediate, major serials retrenchment.  相似文献   
86.
In 1991, the Reference and Information Services staff of the Alfred Taubman Medical Library at the University of Michigan gathered data on the use of the reference desk, including the frequency and types of assistance requested by different user groups throughout the year. Recommendations based on the results of this study led to improved service as well as more efficient use of staff resources.  相似文献   
87.
本文从理论的高度,论述了当今我国竞技体育必须随着经济体制的变革而变革。体制的转变,首先是思想观念的转变:转变指导思想,变"办"为"管";转变思维方式。变"要"为"找";克服教条思想,打破金牌"至上"。  相似文献   
88.
89.
The purpose of the study was to identify the pattern of publication about women and AIDS in scientific journals. Bradford zones were identified in each of six databases. The study determined that journal scatter for this subset of AIDS literature differed from the scatter in the general literature; further, the information indexed in the six electronic sources demonstrated little overlap. Consequently, key journal and newsletter titles identified by this study should form the core of any collection focusing on women and AIDS. The assurance of quality patient care management demands that librarians consult multiple resources for information retrieval that can assist health care providers, patients, and caregivers to enhance quality of life as well as to provide optimum care.  相似文献   
90.
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