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   1563篇
  免费   27篇
  1590篇
  2024年   7篇
  2023年   10篇
  2022年   18篇
  2021年   21篇
  2020年   50篇
  2019年   52篇
  2018年   47篇
  2017年   54篇
  2016年   70篇
  2015年   42篇
  2014年   38篇
  2013年   128篇
  2012年   75篇
  2011年   86篇
  2010年   90篇
  2009年   88篇
  2008年   86篇
  2007年   96篇
  2006年   102篇
  2005年   90篇
  2004年   56篇
  2003年   67篇
  2002年   66篇
  2001年   45篇
  2000年   34篇
  1999年   22篇
  1998年   11篇
  1997年   6篇
  1996年   12篇
  1995年   4篇
  1994年   3篇
  1993年   2篇
  1992年   2篇
  1991年   5篇
  1990年   1篇
  1989年   1篇
  1984年   1篇
  1983年   1篇
  1981年   1篇
排序方式: 共有1590条查询结果,搜索用时 0 毫秒
41.
The Brazilian 1988 constitution recognises indigenous peoples as ‘first and natural owners of Brazilians land’ and the 231st Article ensures their right to special territories where they could live their culture and traditions without colonising presence. The authentication of these territories, however, requires Public Power promotion, which lies on colonising, juridical accounts and depends on anthropological, scientifically historical research. Our argument here is that the bureaucratisation of the land demarcation process is only possible within a context of epistemological advantage of science, i.e. modernity, which ignores indigenous territory and time conceptions. We will also argue that this bureaucratisation has been contributing to the (neo)colonisation of the territory by retarding the recognition and protection of indigenous rights.  相似文献   
42.
    
This paper addresses a neglected aspect of the political and geographical development of the duchy of Normandy between c.987 and 1087: the expansion of the dukes' authority into the Cotentin peninsula. As narratives conceal more than they reveal about this process, ducal acta are the principal means of understanding it. In particular, the article examines the composition and use of the ducal demesne (and includes an appendix listing the lands that appear as demesne before 1087 and describing their subsequent descent). In addition, the essay looks at the men the duke recruited as supporters, the role of ducal women as ‘deputies’ in the Cotentin, and the motives of the leading rebels who fought against Duke William at the battle of Val-ès-Dunes in 1047, which have not previously been subject to close scrutiny. Comparisons are made with other parts of northern France or England, where appropriate, and the conclusions reached are relevant not just to William the Conqueror's rule in England, but also to wider arguments about how theoretical power was turned into reality.  相似文献   
43.
    
The purpose of this paper is to spatially and regionally examine academic engagement within Brazil, identifying patterns. Moreover, our investigation can contribute to a better understanding of how knowledge can be turned into a tool to fight regional inequality. We depart from two hypotheses: first, universities situated in peripheral regions interact more with companies from relatively more dynamic regions, and second, in the absence of industrial knowledge demand, universities tend to collaborate more closely with a diverse range of stakeholders in the region. To evaluate these hypotheses and find empirical evidence, we consider 4497 research groups and 4603 nonacademic organizations as “nodes” connected by 8830 collaborations throughout all Brazilian regions. Social network tools are used to illustrate the spatial and regional dimensions of academic engagement more accurately. The results show that academic engagement is not regionally homogeneous, demonstrating essential differences regarding local nonacademic partnerships. Innovation policies, which encourage only university–firm interactions, perpetuate regional inequality.  相似文献   
44.
    
ABSTRACT

This paper takes an interdisciplinary perspective to focus on the role played by the rural-urban dual system in China’s urbanization and migration. We explain its establishment in China in the 1950s and its genealogy in the industrialization strategy adopted in the USSR in the late 1920s and early 1930s. In the reform era, the system has been refashioned to suit a new set of demands of the state industrialization strategy to cater for the global economy. We analyze the mechanisms of the dual system, and how it has helped generate low-cost migrant labor for urban employers and siphon off revenues for urban governments by expropriating rural land. We also argue that there are fundamental differences between the dual system and the common “dualism,” based on the Lewis dual-sector model, as observed in many developing countries. The plight of children of migrants is used to illustrate the main points made in the paper. Our research challenges the prevailing perspectives in Chinese geography and urban studies, many of which are based on market-driven neoclassical economics or global neoliberalism, often ignoring China’s historical and institutional contexts.  相似文献   
45.
    
Considering recent formulations of geopolitical culture in combination with concerns that environmental change be included in contemporary geopolitical analysis, this paper examines the implicit geopolitical formulations in recent Canadian federal political discourse both in Stephen Harper's Conservative government and the subsequent Liberal administration. Contrasting earth system science ideas about global transformations with Canadian nationalist rhetoric concerning petroleum production and notions of unlimited resource extraction as parts of national identity sharply highlights the contours of Canadian identity. If sustainability is to be taken seriously, the official nationalist formulation will have to be drastically changed, but as the widespread rejection of the LEAP manifesto suggests, such ideas of a sustainable mode of globalization have yet to substantially influence Canadian political discourse, despite the rhetorical support offered to the Paris Agreement on Climate Change by the Liberal government of Justin Trudeau.  相似文献   
46.
    
Competing interests over land are sharply rising worldwide; they are pushed by several factors, including peri‐urban dynamics and growing commercialisation of land. Through a quasi‐experimental design based on spatially disaggregated data, the analysis explores the effect of peri‐urbanisation processes and large‐scale land acquisitions on the risk of organised violence. The results, confirmed throughout several model specifications and robustness checks, provide evidence that peri‐urbanisation processes are strongly associated with a higher risk of experiencing events of organised violence. The likelihood of being the arena of such events is even higher when large acquisitions are concluded within peri‐urban areas. Urbanisation processes and large land acquisitions should therefore be framed within a comprehensive strategy grounded on inclusive urban planning and land access safeguards, in order to minimise the risk that land access insecurity may be translated into violence.  相似文献   
47.
    
JoAnn McGregor  Kudzai Chatiza 《对极》2019,51(5):1554-1580
This article develops the concept of “urban frontier” to explore conflicts over state regularisation of city edge informal settlements in Zimbabwe’s capital Harare. It conceptualises the presence of “lawless” urban frontiers and “illegal” territorial authorities in capital cities as expressions of a permissive form of central statecraft. In so doing, the article takes forward debates over the politics shaping the margins of Africa’s rapidly expanding cities, redressing scholars’ tendency to neglect central party‐state strategic calculations and party politics in their analyses of unregulated settlements. Dominant interpretations generally hinge on state absence or weakness and emphasise localised influences. The case of Harare’s highly politicised city‐edge informal settlements reveals the inadequacy of apolitical approaches particularly clearly, as all were controlled by the ruling ZANUPF party. The conflicts provoked by regularisation provide a lens on disputes within the ruling party, which we interpret as disputes over different forms of clientalist statecraft. Analyses of urban frontiers can thus help move away from generic one‐size‐fits‐all explanations of informality and patronage politics in Africa’s expanding cities.  相似文献   
48.
    
Alexander Vorbrugg 《对极》2019,51(3):1011-1031
In most literature in geography and agrarian studies, rural dispossession is neatly related to land rights or access, a trend that increased with debates about the recent wave of farmland investments worldwide. Drawing on long‐term fieldwork in rural Russia, this paper critiques that focus and the assumed nexus between rural dispossession and farmland, as is prevents an understanding of more dispersed stakes, modes and temporalities of dispossession. I introduce the concept of dispersed dispossession which advances our understanding of social and relational objects of dispossession beyond natural resources (such as sustaining institutions and infrastructures), and the tangled, complex, often slow and silent modes and temporalities of dispossession beyond spectacular events. I show how the concept sheds new light on current agrarian change in Russia, and how it contributes to debates on (rural) dispossession and “land grabs” more generally.  相似文献   
49.
ABSTRACT

Along with its modernization process, China has developed many interests in polar ecology and has connected the significance of the Antarctic and Arctic to its national interests. We present an in-depth analysis and assessment of the state of the art of China’s polar research from following points of view, mechanism of policy making on polar affairs, science diplomacy and polar governance, on-spot research expedition management, allocation of scientific funds, forming polar scientific team, especially on the management system of CHINARE. From an integrated perspective of social and natural sciences, we present a vision for future reform and development of polar affairs of China: to establish a macro and long term policy for the polar regions, to promote and establish a government-led, diversified polar scientific management system, to establish a reasonable and rule based evaluation system, to train, stabilize and expand polar scientific research teams, and to attract and encourage talents for polar science communication.  相似文献   
50.
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   
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