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   717篇
  免费   23篇
  2023年   8篇
  2022年   24篇
  2021年   16篇
  2020年   28篇
  2019年   63篇
  2018年   57篇
  2017年   55篇
  2016年   47篇
  2015年   36篇
  2014年   47篇
  2013年   102篇
  2012年   49篇
  2011年   23篇
  2010年   35篇
  2009年   22篇
  2008年   21篇
  2007年   15篇
  2006年   13篇
  2005年   11篇
  2004年   13篇
  2003年   10篇
  2002年   15篇
  2001年   9篇
  2000年   6篇
  1999年   8篇
  1998年   3篇
  1997年   1篇
  1996年   1篇
  1994年   1篇
  1992年   1篇
排序方式: 共有740条查询结果,搜索用时 46 毫秒
91.
One of the defining features of the material culture of space exploration is the fact that much of it is “out there”: in orbit around celestial bodies and on planetary surfaces. In outer space, we have to rethink the meaning of place. Cartesian coordinates must be replaced with equations of motion to describe the ceaseless movement of heavenly objects in relation to centres of gravity. Archaeological sites in space are not solid condensations of artefacts, hundreds or thousands of years compressed into layers perhaps only centimetres deep. The materials of an archaeological deposit become rather a cloud or swarm. But for both Earth and space, gravity is the structuring force. In this paper I want to reconceptualise archaeological sites according to their position in the gravity well, using dynamical systems and Riemann surfaces. I then consider the Mir space station as an example of a site existing simultaneously on Earth and in orbit, as a preliminary excursion towards a frame of reference that can be used to effectively conduct an archaeology in outer space.  相似文献   
92.
Drawing upon qualitative data, this article examines how tree planters in northern Ontario, Canada engage with liminality in terms of gender, class, age and space. In doing so, it provides insight into concepts of gender liminality and the variegated experiences of males and females in liminal space. The article focuses on four aspects of the liminal engagement. First, the spaces of tree planting are liminal as they are marked by homelife and worklife, but dominated by neither. Second, gender performances are liminal, as males perform masculinities seldom necessary or appropriate – yet often valorized – in their permanent communities, while females (who make up nearly half of the workforce) are offered opportunities to work and succeed in a traditionally male industry. However, success often requires that they adopt certain masculine traits. Third, most tree planters are in the interstitial age of ‘youth’, somewhere between adolescence and adulthood. Finally, tree planters are generally members of affluent urban middle-classes, yet the work they perform is more readily associated with rural or peripheral working-classes.  相似文献   
93.
《History & Technology》2012,28(3):311-333
This essay uses material from the British Broadcasting Corporation (BBC) archives to show how space-related technoscientific activities played a key role in the development of BBC television. The essay focuses on a crucial period when this influential cultural institution transitioned away from radio as their primary broadcast medium in the 1930s and 1940s to reluctantly embrace television in the 1950s and 1960s. Space-related activities, including astronomy, cosmology, rocketry, aerospace engineering, astrophysics and interplanetary research, played a key role in the modernization of BBC television broadcasting in two intersecting ways. Space-related material provided informative, yet popular, programmatic material that helped BBC television compete in an increasingly commercialized media market, and, later, space projects supplied technologies that impacted on the mechanics of broadcast production and transmission. The profile and prestige of space as a topic, in particular, its visuality, the drama of exploration it presented, and its association with celebrity scientists like Bernard Lovell and Fred Hoyle, meant that such programming became a crucial business asset for the BBC and a professional asset for ambitious producers who saw its commercial potential. Following the launch of Sputnik in 1957, space technology became further intertwined with the development of British broadcasting as the fields of satellite communications and broadcasting transmissions infrastructure converged. In particular, BBC producers promoted the potential development of communication satellites within their television programming by portraying such satellites as plausible and necessary for the advancement of civilization, and most crucially, as a prospective British Space Race achievement.  相似文献   
94.
Kurt Iveson 《对极》2012,44(1):151-174
Abstract: In many cities both rich and poor, new forms of outdoor advertising are emerging with potentially significant implications for the nature of the urban public realm. Public–private partnerships for advertising‐funded provision of basic items of urban infrastructure such as bus shelters, street signs and public telephones have grown as a result of structural changes in the advertising industry and shifts towards neoliberal forms of urban governance. This article critically interrogates the implications of these new outdoor advertising arrangements for the urban public realm, and argues that they have potentially harmful consequences for the accessibility and diversity of the outdoor media landscape. It then proposes three strategies for the democratisation of that landscape. These strategies are not premised on an outright rejection of outdoor advertising, but rather seek to contest the monopolistic capture of outdoor media by public–private partnerships involving urban authorities and outdoor advertising companies.  相似文献   
95.
Abstract: Subsequent to the Brundtland Report (World Commission on Environment and Development 1987, Our Common Future), sustainability has been set up in many countries as a mission statement of cross‐sectoral policies. Sustainable development carries the normative notions of equity, empowerment and environmentally sensitive economic development. Thus, it seems to suggest a fundamentally different vision to neoliberal dogma, which is at the same time described as dominating all socio‐political processes. This paper intends to explore the relation between these two discursive framings of contemporary policies through the example of German spatial planning guidelines. More precisely, it addresses social justice as one pillar of sustainability and how it is operationalised in spatial planning policies in Germany. This may exemplify how the seemingly opposing discourses interact in policy practices. The empirical analysis suggests that the ways in which the German spatial planning report focused on social space in territorial terms promotes an economistic and truncated view of social justice, one which fosters the neoliberal idea of regional competition for global capital and reduces socio‐spatial justice to territorially equally distributed economic inclusion.  相似文献   
96.
Janelle Cornwell 《对极》2012,44(3):725-744
Abstract: If we are to understand the organization and growth of capitalist space, should we not also seek to understand the organization and expansion of noncapitalist economic spaces? In contrast to methods employed by theorists such as Harvey, Smith and other geographers focused on capitalist space, the diverse economies framework opens up to investigation such noncapitalist spaces. In this paper, using Gibson‐Graham's “politics of possibility”, I explore the production of work space and time in a growing worker owned co‐operative copy shop in order to gain insight into the organization and growth of co‐operative space. I argue that, in this instance, co‐operative growth emerges from the transformative experience of workers having a say in their daily work lives, having equal authority to govern work space and time and to appropriate and distribute surplus.  相似文献   
97.
Although the progression of peace is, in all likelihood, finally imperilling the ascendancy of the thriller as the literary venue for representing social and political life in contemporary Northern Ireland, the genre continues to provide important access points for understanding the Troubles. Eoin McNamee's grim and harrowing Resurrection Man, for example, may be the only contemporary Northern Irish novel to represent the British government's mid-1970s internal security strategy known as ‘Ulsterisation’. By suggesting the various ways in which violence and subterfuge were nourished by government interests and supported by covert operatives, McNamee's novel subtly depicts a London intent on managing the conflict while insulating it from British politics and international criticism. Even as it does so, though, Resurrection Man ultimately struggles to avoid the thriller's more regressive tropes and generic conventions.  相似文献   
98.
During the three-month long Sino-Japanese hostilities in the summer of 1937, Shanghai industries suffered the heaviest loss ever sustained during any previous military conflict in the city. Yet as has been shown in a previous study, local industries seem to have recovered fairly quickly. All statistics point to a return to pre-war levels of production in most sectors by the end of 1938 in some cases and during 1939 for most industrial branches. The purpose of this paper is to try to highlight the spatial dynamics at work in this recovery process. It relies not just on original sources, but on the unique capabilities GIS offers in processing large amounts of historical data and exploring connected issues in land use, demography, and urban life. The paper argues that Shanghai industries went through a thorough phase of relocation and migration within the city, but also of inbound migration from the surrounding regions. This study is based on a particular set of documents produced by the Shanghai Municipal Council, the largely independent body that administered the International Settlement. In this study, therefore, I shall argue that what happened in the territory of the International Settlement mirrored what happened next door and possibly in other parts of the Chinese-administered/Japanese-occupied areas. Beyond the issue of industrial movement, this paper also examines connected issues in land use, demography, and urban life.  相似文献   
99.
申峻霞  张敏  甄峰 《人文地理》2012,26(1):29-33
本文以消费社会和网络社会为背景,从鲍德里亚的消费社会理论出发,运用符号学方法,对南京"淘淘巷"网络实体街区这一消费空间的建构与扩散机制进行了分析。指出符号是消费空间特色塑造的重要路径,但消费空间的扩散并非简单的符号复制过程。揭示了网络实体消费空间作为一种半组织性的社会空间,其内涵的社会关系和运行的内在机制才是它得以存在的内因。网络实体街区这一消费空间是一种超越符号的存在,并非完全归结于符号的消费。  相似文献   
100.
Interrogating post-democratization: Reclaiming egalitarian political spaces   总被引:5,自引:0,他引:5  
There is now an emerging body of thought on the dynamics of de-politicization, the ‘disappearance of the political’, the erosion of democracy and of the public sphere, and the contested emergence of a post-political or post-democratic socio-spatial configuration. I situate and explore this alleged ‘post-democratization’ in light of recent post-Althusserian political thought. I proceed in four steps. First, I discuss the contested configurations of this post-politicization and the processes of post-democratization. In a second part, I propose a series of theoretical and political arguments that help frame the evacuation of the properly political from the spaces of post-democratic policy negotiation. This diagnostic is related to a particular interpretation of the distinction between ‘the political’ and ‘polic(e)y/‘politics’. In a third part, I argue how emancipatory–democratic politics can be reclaimed around notions of equality, and freedom. In the concluding part, perspectives for re-vitalising the political possibilities of a spatialized emancipatory project are presented. The crux of the argument unfolds the tension between politics, which is always specific, particular, and ‘local’ on the one hand and the universal procedure of the democratic political that operates under the signifiers of equality and freedom on the other.  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