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   27040篇
  免费   677篇
  国内免费   13篇
教育   20019篇
科学研究   2294篇
各国文化   525篇
体育   1987篇
综合类   12篇
文化理论   196篇
信息传播   2697篇
  2021年   275篇
  2020年   415篇
  2019年   665篇
  2018年   832篇
  2017年   885篇
  2016年   760篇
  2015年   579篇
  2014年   712篇
  2013年   5405篇
  2012年   687篇
  2011年   734篇
  2010年   576篇
  2009年   531篇
  2008年   711篇
  2007年   547篇
  2006年   583篇
  2005年   444篇
  2004年   444篇
  2003年   328篇
  2002年   366篇
  2001年   492篇
  2000年   480篇
  1999年   439篇
  1998年   238篇
  1997年   254篇
  1996年   279篇
  1995年   273篇
  1994年   224篇
  1993年   262篇
  1992年   378篇
  1991年   364篇
  1990年   372篇
  1989年   383篇
  1988年   363篇
  1987年   320篇
  1986年   314篇
  1985年   374篇
  1984年   308篇
  1983年   349篇
  1982年   269篇
  1981年   239篇
  1980年   238篇
  1979年   352篇
  1978年   261篇
  1977年   237篇
  1976年   224篇
  1975年   200篇
  1974年   201篇
  1973年   181篇
  1971年   155篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Research in Higher Education - State financial aid grant programs are commonly categorized as either need-based, merit-based, or both, but their initial eligibility requirements include many more...  相似文献   
2.
Editorial     
B. Sury 《Resonance》2018,23(7):723-725
  相似文献   
3.
4.
ABSTRACT

This article offers a textual analysis and semiotic reading of the Rich Kids of Tehran's (RKOT’s) Instagram page. Contributing to scholarship on Iranian youth media practices, this article interrogates how the RKOT navigate urban and rural space to engage in everyday processes of resistance against global and local systemic oppression. Grounding their visual representations on Instagram in historical and cultural context, the author questions how and when quotidian actions are transformed into political transgressions when posted on social media. This article emphasizes the RKOT's agency in shaping their brand by analyzing representations of gender performance, intertextuality, and national identity on Instagram.  相似文献   
5.
ABSTRACT

This paper aims to analyse the initiatives undertaken by some immigrant communities residing in Latin America to record their mobilisation around the First World War. After the armistice, European communities in Argentina, Bolivia, Brazil, Chile, Mexico, Paraguay, Peru, Uruguay and other countries gathered detailed information about their activities during the conflict, published as profusely illustrated books of remembrance, offered to their governments as proof of their loyalty. The article intends to establish the peculiar nature of these publications as records of the war effort, and analyse the agents and processes of their elaboration, and their role as commemorative but also as archival documents.  相似文献   
6.
In the IR field it is clear that the value of a system depends on the cost and benefit profiles of its users. It would seem obvious that different users would prefer different systems. In the TREC-9 filtering track, systems are evaluated by a utility measure specifying a given cost and benefit. However, in the study of decision systems it is known that, in some cases, one system may be unconditionally better than another. In this paper we employ a decision theoretic approach to find conditions under which an Information Filtering (IF) system is unconditionally superior to another for all users regardless of their cost and benefit profiles.It is well known that if two IF systems have equal precision the system with better recall will be preferred by all users. Similarly, with equal recall, better precision is universally preferred. We confirm these known results and discover an unexpected dominance relation in which a system with lower recall will be universally preferred provided its precision is sufficiently higher.  相似文献   
7.
8.
This article describes the Engineering Professors' Conference (EPC) approach to quality assurance for Higher Education Institutions, which is currently the only formalized alternative to British Standard 5750 'Quality Systems'. The EPC approach is based on principles of quality assurance and Total Quality Management which have been developed in industry. These ideas are briefly outlined, and an opinion expressed on the interpretation and application of BSS7S0 for HE. The EPC model is explained, illustrated with example elements taken from the EPC Specification and Guidelines for Quality Assurance in Higher Education. A top-down approach to the development of an institutional quality system is described, based on a quality policy statement. Areas of activity which have an important impact on the quality of education are identified, emphasising the quality assurance requirements of academic departments. Supporting and administrative quality system requirements are also described, as these also play an important role in the quality of education. Formal quality procedures and documentation in key areas are proposed.  相似文献   
9.
10.
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