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   405篇
  免费   25篇
  2023年   2篇
  2020年   8篇
  2019年   13篇
  2018年   13篇
  2017年   20篇
  2016年   13篇
  2015年   16篇
  2014年   9篇
  2013年   68篇
  2012年   6篇
  2011年   13篇
  2010年   12篇
  2009年   11篇
  2008年   12篇
  2007年   8篇
  2006年   8篇
  2005年   6篇
  2004年   6篇
  2003年   11篇
  2002年   9篇
  2001年   8篇
  2000年   14篇
  1999年   10篇
  1998年   17篇
  1997年   8篇
  1996年   5篇
  1995年   4篇
  1994年   5篇
  1993年   3篇
  1992年   2篇
  1991年   2篇
  1990年   2篇
  1989年   3篇
  1986年   5篇
  1984年   2篇
  1983年   4篇
  1982年   6篇
  1981年   5篇
  1980年   9篇
  1979年   4篇
  1978年   4篇
  1977年   7篇
  1976年   2篇
  1975年   3篇
  1974年   3篇
  1973年   2篇
  1972年   3篇
  1969年   3篇
  1966年   2篇
  1958年   3篇
排序方式: 共有430条查询结果,搜索用时 203 毫秒
61.
62.
Situated along the southern fringe of the North Sea basin, northwest Belgium holds great potential for understanding hunter–gatherer responses to environmental change at the Pleistocene–Holocene transition. Recent intensive fieldwork has yielded valuable data on the palaeoenvironment, chronology, and hunter–gatherer mobility and land use in this region. At the Late Glacial/Early Holocene transition this region was comprised of a landscape of coversand ridges and lakes that flanked the northern part of the Scheldt river basin. This landscape was highly productive for hunter–gatherer populations. As the landscape developed in response to the increasing water table caused by the inundation of the North Sea populations responded by changing their forms of mobility and land use. These changes are indicated by the reduction in the number and density of sites, as well as their geographical settings, from the Late Glacial (Federmesser) and Early Mesolithic to the Middle-Final Mesolithic. Late Glacial/Early Mesolithic sites indicate much higher mobility comprised of rapid displacements of camps and re-occupation of the same coversand ridges over long time-spans. Middle/Late Mesolithic sites indicate a reduction in mobility, increasing focus on prolonged riverside settlement, and a more rigid organization of residential sites.  相似文献   
63.
64.
65.
Following his participation in an expedition to the Weddell Sea (1892–1893), William Speirs Bruce determined to undertake further polar research and sought training and experience in such techniques and methodologies as might prove useful to him in securing opportunities to participate in future expeditions. During 1895–1896 he worked at the Ben Nevis Observatory gaining experience of meteorological research. The experience he gained in the design and operation of an observatory in a harsh environment he was later to apply when he established an observatory on Laurie Island, South Orkneys. This paper draws on a recently discovered archival source (Swinney (2001) to re‐examine Brace's involvement with the Ben Nevis Observatory.  相似文献   
66.
67.
The National Theatre of Scotland (NTS) is a an innovative and ground‐breaking, non‐building‐based, commissioning and producing cultural institution, established in the wake of the devolution of the Scottish Parliament. This article sketches the contours of this new model of a national theatre, exploring the complex dialectic between various economic, political, social and artistic choices, forces and factors that have influenced, and continue to influence, the formative years of the NTS. The article charts changes to the company during these early years and, most significantly, notes the potential effect that the change from arm’s length to direct government funding might have on the company’s long‐term development. It is argued that direct funding aligns the arts too closely to political agendas rather than supporting artistic freedom and expression.  相似文献   
68.
69.
Committees play a pivotal role in the legislative process. Since the mid-1970s, subcommittees have been important in the lawmaking process as well. Given this enhanced performance, the membership of subcommittees can be a key element in the direction that the legislative process takes. In this article, we develop and test a set of expectations regarding the ideological makeup of subcommittees. Resting firmly on the shoulders of Cox and McCubbins (1993), we assert that those subcommittees with particularized interests will possess memberships which are ideologically distinguishable from their parent committees, while those that affect a wider range of interests will have contingents ideologically indistinguishable from their parent committees. Employing a Monte Carlo simulation technique on ideological composition data of members of subcommittees of the House Appropriations and Ways and Means Committees from the 96th to 106th Congresses, we expect to find that the occurrence of subcommittee outliers are generally consistent (with some notable exceptions) in their direction over time. Additionally, we test the hypothesis that there were no significant changes in the mix of subcommittee outliers from the 103rd to the 104th Congresses and beyond. We find that the change in partisan control of the House resulted in few shifts in outliers.  相似文献   
70.
This article explores historical rumors and narratives told by Muslims of Dar es Salaam, contending that Julius Nyerere, TANU founder and first president of independent Tanzania, was an inexperienced schoolteacher thrust into the role of political activist through sponsorship of the Muslim community. This history was allegedly hidden by the current government to cover up not only Nyerere’s meteoric rise to a position of leadership, but also subsequent actions that wrested the movement from Muslims and other early TANU leaders to monopolize power for himself and upcountry elites. Just as academic historians critique the teleological trajectory of many nationalist histories, these rumors critique Tanzanian nationalist history through appropriating its historiographic form to forefront postcolonial grievances. The discursive nature of such rumors articulates the discontent permeating the postcolonial Muslim community of Dar es Salaam. And as political speech in action, rumors are instrumental in mobilizing new postcolonial political configurations.  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