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   10188篇
  免费   111篇
  国内免费   19篇
教育   6968篇
科学研究   1101篇
各国文化   99篇
体育   1041篇
综合类   7篇
文化理论   103篇
信息传播   999篇
  2020年   124篇
  2019年   183篇
  2018年   250篇
  2017年   264篇
  2016年   235篇
  2015年   162篇
  2014年   230篇
  2013年   1909篇
  2012年   221篇
  2011年   215篇
  2010年   187篇
  2009年   168篇
  2008年   191篇
  2007年   218篇
  2006年   172篇
  2005年   159篇
  2004年   154篇
  2003年   179篇
  2002年   154篇
  2001年   177篇
  2000年   170篇
  1999年   165篇
  1998年   82篇
  1997年   86篇
  1996年   127篇
  1995年   87篇
  1994年   111篇
  1993年   110篇
  1992年   166篇
  1991年   163篇
  1990年   147篇
  1989年   154篇
  1988年   125篇
  1987年   128篇
  1986年   142篇
  1985年   143篇
  1984年   119篇
  1983年   143篇
  1982年   126篇
  1981年   113篇
  1980年   106篇
  1979年   178篇
  1978年   121篇
  1977年   119篇
  1976年   112篇
  1975年   86篇
  1974年   99篇
  1973年   73篇
  1972年   79篇
  1971年   79篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
At this critical point in its development as a burgeoning market economy ensconced within a socialist political system, China faces a dilemma in becoming a fully‐fledged player in the copyright arena. Over the past two decades, China has made great strides in creating a legal and governmental framework for the administration and enforcement of copyright. But its implementation has left much to be desired, owing partly to inadequate resources of money and personnel, partly to insufficiently harsh penalties for infringement, partly to cumbersome procedures required to bring action against infringers, and partly to a general cultural tolerance for practices that run contrary to cultivating a broad‐based respect for copyright. This article proposes that a balance of pressure and encouragement is likely to have the best chances of success in overcoming these problems and ensuring that China will become fully welcomed into the international publishing community.  相似文献   
42.
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   
43.
44.
The necessity for publishing a separate abstract journal on spintronics, which is a new, rapidly developing branch of physics, is substantiated. The interest in spintronics, which is the study of fundamental processes involving the simultaneous transport of both electron charge and electron spins in solids, as well as the interaction of electrons with a magnetic grating, is determined not only by its fascinating prospects but also the results that have already achieved. The spin and charge “degrees of freedom” open possibilities for the creation of semiconducting devices with parameters that are much superior to the existing ones and also the construction of devices that do not have analogues at present. First of all, this will permit problems of information transmission and processing to be solved in a new way. A detailed rubrication on spintronics is given in order to discuss the possibility of publishing a separate edition of an abstract journal devoted to spintronics.  相似文献   
45.
Zusammenfassung  Wir stellen eine Reihe von innovativen Methoden zur webbasierten multilingualen Fragebeantwortung in offenen Dom?nen vor. Insbesondere werden neuartige Strategien zur Bestimmung optimaler Antwortkontexte und zur Extraktion von exakten Antworten auf Basis von sprachunabh?ngigen, datengetriebenen maschinellen Lernverfahren beschrieben. Es werden zwei alternative Methoden für die crosslinguale Frageanalyse skizziert mit deren Hilfe für eine Anfrage in einer natürlichen Sprache Antworten in Dokumenten einer anderen natürlichen Sprache bestimmt werden k?nnen. Alle Methoden sind detailliert evaluiert und weisen eine vielversprechende Performanz auf. CR subject classification  I.2.6 ; I.2.7 ; J.1 ; K.3.2 ; D.3.3 ; D.2.2  相似文献   
46.
47.
48.
Libraries today, including most hospital-based patients' libraries, are involved only peripherally in providing patient health science information. Hospital libraries should collaborate with health professionals in getting health information to patients--along with the library's more traditional roles of providing recreational reading for patients and serving the informational needs of the physician and medical staff. The library should act as the center for educational materials and programs within the hospital. Many health agencies, health educators, physicians, and librarians have been discussing the need for patient health education, but there are few effectively organized or established education centers. This paper discusses an overview of patient health education and intellectural freedom, proposes a new role for the existing hospital library in patient health education, and suggests guidelines for establishing a patient education center.  相似文献   
49.
50.
THE VIRTUES     
  相似文献   
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