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   2880篇
  免费   145篇
  2023年   18篇
  2021年   12篇
  2020年   45篇
  2019年   76篇
  2018年   95篇
  2017年   133篇
  2016年   110篇
  2015年   84篇
  2014年   79篇
  2013年   893篇
  2012年   68篇
  2011年   63篇
  2010年   96篇
  2009年   84篇
  2008年   70篇
  2007年   53篇
  2006年   54篇
  2005年   45篇
  2004年   47篇
  2003年   55篇
  2002年   54篇
  2001年   46篇
  2000年   45篇
  1999年   32篇
  1998年   36篇
  1997年   43篇
  1996年   20篇
  1995年   27篇
  1994年   27篇
  1993年   23篇
  1992年   29篇
  1991年   27篇
  1990年   19篇
  1989年   11篇
  1988年   24篇
  1987年   19篇
  1986年   16篇
  1985年   33篇
  1984年   26篇
  1983年   37篇
  1982年   27篇
  1981年   28篇
  1980年   19篇
  1979年   27篇
  1978年   24篇
  1977年   18篇
  1976年   22篇
  1975年   15篇
  1974年   20篇
  1973年   9篇
排序方式: 共有3025条查询结果,搜索用时 15 毫秒
121.
ABSTRACT

This article aims to shed light on Quebec’s role in cross-border security governance. It exposes the challenges Quebec is facing in this area and what cross-border activities fall within its jurisdiction. The supported hypothesis in this article is that security is subjected to an increasing politicization from the Quebec government in a post-9/11 context, which contributes to the edification of an embryonic “multilevel governance.” If this politicization was noticeable in political statements and international agreements, it seems that it was more driven by conjectural imperatives than a real desire to make Quebec a leader in transnational security. Therefore, there were no diplomatic and financial commitments to make security part of the Gérin-Lajoie doctrine and develop a similar paradiplomacy as in other fields. However, on different technical and bureaucratic levels, transgovernmental relations between certain Quebec governmental organizations, including police corps, and their American counterparts were created. Consequently, they contributed to make continental action more effective, at least in a certain measure.  相似文献   
122.
This guest editorial considers the relevance of caste in today's world in terms of ‘castes of mind’.  相似文献   
123.
124.
Abstract

The social insurrection of May 1968 in France continues to provoke strong political debate. Compared to most French politicians and social commentators who dismiss or condemn it as an excessive adolescent rebellion, French anarchists contend that it was a substantial political rupture because participants challenged the legitimacy of all hierarchy and domination in every realm of society. Research into a wide range of French anarchist books and articles from 1988 to the present reveals several distinct approaches to May 68. Beyond narratives of the events themselves, anarchists emphasised the rapid spread and delight with horizontalist social relations of mutual aid and respect on campuses and in workplaces and neighbourhoods as 10 million French people went on strike for several weeks. This liberating experience, they contend, transformed the social consciousness of large numbers and led to the great surge of anarchic autonomous social movements in different realms in the 1970s. These writings also reveal important debate among anarchists themselves on whether May 68 was a revolution, whether revolution is even possible and how to organise a revolutionary movement.  相似文献   
125.
A high-resolution chronostratigraphy has been established for an eroding Atlantic round house at Sloc Sàbhaidh (North Uist, Scotland), combining detailed OSL profiling and dating of sediments encompassing the main bracketing events associated with the monument, radiocarbon AMS dates on bone recovered from excavated features and fills within it, and TL dates on pottery and burnt clay. Concordant OSL and radiocarbon evidence place construction of the wheelhouse in the first to second centuries AD, contemporary with dates from the primary occupation. Beneath the wheelhouse, clay deposits containing burnt material, attest to cultural activity in vicinity to the monument in the preceding second to first centuries BC. At a later date, the southern wall collapsed, was rebuilt, and the interior spaces to the monument re-structured. The chronology for the later horizons identified from the sediment luminescence dates extends to the second half of the first millennium AD, which goes beyond the range of the radiocarbon dates obtained. The data from ceramics encompass both periods. The juxtaposition of the dating evidence is discussed relative to short and longer chronologies for this Iron Age monument. Corollaries of this research are the implications that based on the long chronology, some of the ecofacts (bone) appear to be residual, and that the temporal duration of Hebridean Coarse Ware may extend into the second half of the first millennium AD.  相似文献   
126.
127.
The article focuses on the redevelopment of previously developed land by public-private sector partnerships in three cities/towns in South-West England, two of which can be described as medium-sized places with little previous experience of such developments. In each case we situated the redevelopment process in its wider multi-level and horizontal relationships using Social Network Analysis to produce network and centrality maps to reveal the complex network of relationships the process was embedded within and shaped by. These developments took place in what is termed the ‘roll-out’ phase of neoliberalism and we illustrate how the overarching planning and regulatory regimes (including contracts), along with wider economic conditions, shaped the development process, with the proviso that in each case these factors were mediated and themselves shaped by the assortment and interaction of local organizational, political, economic and civic forces. These included local planning committees and their interpretation of planning regulations and the developers involved, but also opposition to the developments from local sources. Much, however, depended on the ‘capacity to act’ of the relevant partnerships, in the sense of mobilizing and deploying available resources to realize the proposed developments.  相似文献   
128.
129.
130.
The paper analyses the emergence of the Artificial Intelligence (AI) cluster in Montreal and investigates two questions: (1) What are the different theoretical interpretations related to the emergence of industrial cluster? And (2) What are the factors underlying the emergence of the AI cluster in Montreal and to what extent have local and global factors been decisive in this respect? The AI cluster emerges through a process that brings into play the interaction between the local initial conditions and the birth of a new industry. Moreover, it also involves an interaction between the local and the global, which is supported by interactions with foreign actors located in different parts of the world.  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