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   12195篇
  免费   4篇
教育   9435篇
科学研究   1236篇
各国文化   13篇
体育   391篇
文化理论   389篇
信息传播   735篇
  2022年   7篇
  2021年   5篇
  2020年   30篇
  2019年   24篇
  2018年   2193篇
  2017年   2093篇
  2016年   1591篇
  2015年   120篇
  2014年   139篇
  2013年   230篇
  2012年   231篇
  2011年   709篇
  2010年   850篇
  2009年   446篇
  2008年   655篇
  2007年   1157篇
  2006年   76篇
  2005年   398篇
  2004年   455篇
  2003年   373篇
  2002年   142篇
  2001年   14篇
  2000年   28篇
  1999年   10篇
  1998年   5篇
  1997年   19篇
  1996年   5篇
  1995年   10篇
  1994年   6篇
  1993年   5篇
  1992年   5篇
  1991年   17篇
  1990年   12篇
  1989年   11篇
  1988年   4篇
  1987年   8篇
  1986年   7篇
  1985年   6篇
  1984年   4篇
  1983年   4篇
  1982年   5篇
  1980年   6篇
  1979年   10篇
  1978年   14篇
  1977年   7篇
  1975年   3篇
  1974年   5篇
  1968年   6篇
  1966年   3篇
  1965年   3篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
85.
86.
Census information of some form has been collected in Canada since the 1611 census of New France. Aboriginal people, identified or not, have been included in these enumerations. The collection of this information has had a profound impact on Aboriginal people and has been an element that has shaped their relationship with the dominant society. In response, Canadian Aboriginal people have often resisted and refused to co-operate with census takers and their masters. This article is an examination of this phenomenon focused on the censuses conducted in the post-Confederation period to the present. A census is made to collect information on populations and individuals that can then be used to configure and shape social and political relations between those being enumerated and the creators of the census. However, the human objects of the census are not just passive integers and they have resisted its creation in a number of ways, including being “missing” when the census is taken, refusing to answer the questions posed by enumerators or even driving them off Aboriginal territory. A census identifies elements of the social order and attempts to set them in their “proper” place and those who do not wish to be part of that order may refuse to take part. Archivists and historians must understand that the knowledge gained in a census is bound with the conditions of own creation. This has been noted by contemporary Aboriginal researchers who often state that the archival record of their people often distorts history and reflects the ideas and superficial observations of their Euro-Canadian creators. Changes to the Census of Canada since 1981, have increased the participation rate and therefore changed the nature of the record.
Brian Edward HubnerEmail:

Brian Edward Hubner   is currently Acquisition and Access Archivist at the University of Manitoba Archives & Special Collections. He was previously employed at the Archives of Manitoba, in Government Records; Queen’s University Archives, Kingston; and at the National Archives of Canada, Ottawa. He has a Master of Arts (History, in Archival Studies) from the University of Manitoba, and a Master of Arts (History), from the University of Saskatchewan. The 2nd edition of Brian’s co-authored book on the history of the Cypress Hills of Saskatchewan and Alberta is being published in 2007. He has published articles and delivered conference papers on Canadian Aboriginal peoples including “Horse Stealing and the Borderline: The N.W.M.P. and the Control of Indian Movement, 1874-1900.” His current research interest focuses on relationship between Canada’s Aboriginal Peoples and Canadian archives. Brian is married and has two children.  相似文献   
87.
The retrieval of sentences that are relevant to a given information need is a challenging passage retrieval task. In this context, the well-known vocabulary mismatch problem arises severely because of the fine granularity of the task. Short queries, which are usually the rule rather than the exception, aggravate the problem. Consequently, effective sentence retrieval methods tend to apply some form of query expansion, usually based on pseudo-relevance feedback. Nevertheless, there are no extensive studies comparing different statistical expansion strategies for sentence retrieval. In this work we study thoroughly the effect of distinct statistical expansion methods on sentence retrieval. We start from a set of retrieved documents in which relevant sentences have to be found. In our experiments different term selection strategies are evaluated and we provide empirical evidence to show that expansion before sentence retrieval yields competitive performance. This is particularly novel because expansion for sentence retrieval is often done after sentence retrieval (i.e. expansion terms are mined from a ranked set of sentences) and there are no comparative results available between both types of expansion. Furthermore, this comparison is particularly valuable because there are important implications in time efficiency. We also carefully analyze expansion on weak and strong queries and demonstrate clearly that expanding queries before sentence retrieval is not only more convenient for efficiency purposes, but also more effective when handling poor queries.  相似文献   
88.
Recordkeeping in twentieth century colonial states has been ignored by scholars, or at best regarded as the result of a monolithic process of migration of metropolitan practices. Registries provided the principal organ of recordkeeping in British government systems of administration. This comparative study of the registries in the neighbouring territories of Northern Rhodesia (now Zambia) and Nyasaland (now Malawi) reveals the true extent of metropolitan British influence, exposing an absence of centralised advice, and a consequent dependence upon individual innovation. This engendered divergent and sometimes weak recordkeeping regimes. The effects of this included the diminution of fiduciary responsibility and administrative accountability.  相似文献   
89.
Forecasts indicate a growing demand for digital content around the world. Converting to digital content can open up countless new revenue possibilities. Adding alternate channels may be worth consideration, but what are the options and what does it take to utilize them effectively? This article explores the opportunities that potentially exist for publishers with content that may be digitized and distributed to global markets. A brief review of the current marketplace is also incorporated, including current players and trends. Finally, an analysis of some of the potential issues, challenges and pitfalls is presented in context of delving into a new international digital content distribution strategy.  相似文献   
90.
Traditional media have been changing in response to digitisation processes and the spread of the internet. This article looks at the consequences of technological change for the organisational structures of publishing houses in Germany, most of which are small to medium sized enterprises (SMEs). Following any decision to produce digital content, new tasks emerge which need to be fulfilled and publishing houses have to re-allocate appropriate responsibilities. The context of the preference for in-house or for external production is explored as is the precise identification of the managerial and technical skills demanded by a switch to digital publishing. The findings suggest the important role of strategic partnerships with service providers as well as with other publishing houses, especially for larger projects beyond the capabilities of SMEs.  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