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   226篇
  免费   2篇
  2022年   1篇
  2020年   2篇
  2019年   16篇
  2018年   8篇
  2017年   9篇
  2016年   11篇
  2015年   7篇
  2014年   3篇
  2013年   19篇
  2012年   7篇
  2011年   16篇
  2010年   6篇
  2009年   11篇
  2008年   13篇
  2007年   12篇
  2006年   15篇
  2005年   14篇
  2004年   8篇
  2003年   15篇
  2002年   9篇
  2001年   7篇
  2000年   12篇
  1999年   2篇
  1996年   2篇
  1995年   1篇
  1993年   1篇
  1992年   1篇
排序方式: 共有228条查询结果,搜索用时 15 毫秒
1.
Regional design, long a backbone for spatial planning, even if under other names, has become topical again for two reasons – as a key strategy and as a key tool in spatial management. This is due to several reasons. New conditions of urbanization that result from the convergence of several factors highlight the need for spatial strategy formation and application at supra-metropolitan scales. These new conditions include globalization, climate change, booming urban population, increased mobility and interconnectivity, and new infrastructure technologies. These forces driving urbanization today and into the future play out at the urban scale, which is increasingly encompassed in the city-region. The solutions to the impacts and problems that these forces cause must be dealt with by a strategic urbanism at a scale that matches. This scale of urbanism can be denoted as regional design. To justify these claims and to understand the origins of regional design and its relevance today and into the future, the master strokes in its history are presented next. After that, we discuss current concepts and practices in regional design. In conclusion, we offer answers to the question: why a resurgence of regional design?  相似文献   
2.
3.
VandenBerg, Alfons H.M., November 2017. Fragmentation as a novel propagation strategy in an Early Ordovician graptolite. Alcheringa 42, 1–9. ISSN 0311-5518.

Catenagraptus communalis gen. nov. sp. nov. is a late Floian (Early Ordovician) graptolite from Victoria, Australia, only found as fragments, with each fragment resembling an assemblage of uniserial tubarium-like structures (pseudotubaria) connected by threads (aulons). Individual pseudotubaria consist of a fallosicula and a stipe, both of which are linked by aulons to other pseudotubaria. Adjacent pseudotubaria are in a parent–offspring relationship. Aulons can be generated from both the proximal and distal extremities of fallosiculae, and from the ends of stipes. The aulons are interpreted to have been grown by the zooid that occupied either the fallosicula or the terminal theca of the stipe. Aulons were pathways for a zooid that built a fallosicula at the end of the aulon. This process was repeated to form the assemblage. None of the assemblages contain a true sicula, which suggests that the assemblages present evidence of a new, asexual propagation strategy that involved fragmentation and dispersal. As this interpretation is radical, other models explored are partial sclerotization and modified sicular spines.

Alfons H.M. VandenBerg [], Museum Victoria, GPO Box 666, Melbourne 3001, Victoria, Australia.  相似文献   

4.
张威 《安徽史学》2015,(6):118-127
1971年印巴危机是冷战时代一次具有重大国际影响的地区危机。危机期间,因受东巴内战与印巴冲突的双重影响,大量东巴居民逃往印度,沦为难民。东巴难民持续涌入印度不仅是东巴危机转变为印巴危机的主要诱因,同时也是导致南亚持续紧张、敌对氛围难以消解的重要根源。为妥善解决难民问题,美国积极谋划,投入大量人力、物力、财力,意图妥善解决难民问题,化解危机。但是美国采取的积极措施并未减缓危机冲突的不断升级。在处理难民问题的过程中,美巴政策协调趋于一致,而印度与美巴在难民问题上的政策倾向却渐行渐远。归根究底,是否应该在难民问题上附加最终促成东巴独立的政治条件是美巴与印度的根本分歧所在。而这一根本分歧的悬而未决最终成为引爆第三次印巴战争的导火索。  相似文献   
5.
Since the late 1990s, migration of single women from the rural north to the urban south in Ghana has been making up a growing share of migrant streams. While the livelihood strategies of these migrant women in their southern destinations have been recently examined, the experience of reintegration for those who return to their place of origin has rarely been studied. Drawing on qualitative research with migrant women, returned migrant women (RMW) and their family members, this study examines everyday reintegration experiences of RMW within their households in a rural Dagomba community in Northern Region, Ghana. We conceptualise the household as an arena of everyday life wherein RMW exercise agency to learn to generate livelihoods that support their own as well as household members’ joint well-being. We combine this conceptualisation of household with feminist scholars’ recognition of gender as situated process. Our conceptualisation makes it possible to illuminate gender dynamics around the everyday repetitive decision-making acts that constitute livelihood generation as performed by RMW within specific intra-household dynamics in the context of reintegration in the situated community. Through the examination of the diverse and contradictory ways in which RMW exercise agency in making decisions about livelihood strategies within their households in the studied community, we show how the everyday repetitive acts of RMW contribute to micro-transformations of a situated gender ideology.  相似文献   
6.
Recognition and respect for sexual minorities in Hong Kong is still a contested area. Public sexual identity politics in Hong Kong has been framed by traditional Chinese gender ideology and imported Christian beliefs which are profoundly negative. Focusing on the interpersonal relationships in three spheres of life, the research adopted the sociological perspective of personal life and the feminist geographers’ idea of spatialization of identity management to analyze how the sexual self of sexual minorities has been marginalized and excluded in intimate social spaces of family, church communities and schools in Hong Kong with specific spatial practices and different forms of power/knowledge. By examining overlooked intimate injustice in personal life, this study illustrates that identity conflicts between Christianity and non-heterosexuality in everyday life is constructed through misrepresentation, misrecognition, harassment and exclusion in intimate relationships. Different types of knowledge are being used to reiterate pre-existing norms and institutionalized patterns of cultural value that constitute the sexual minorities as comparatively unworthy of respect. These micro-political processes involve both conformity and resistance to gender and sexual stereotypes. Participants managed to develop spatial coping strategies such as concealment, compartmentalization, confrontation and alternative sources of support to manage their lives with dignity and self-esteem.  相似文献   
7.
Few men arguably shaped the trajectory of American foreign policy in the twentieth century as durably and profoundly as Henry L. Stimson. After all, Stimson was not only directly involved in many consequential decisions dealing with highly important matters of war and peace, but was also a major influence in the United States’ more proactive involvement in extra-territorial affairs. For Stimson, it was simply wishful thinking to presume that the United States could forever disengage itself from far-reaching occurrences in other parts of the globe. Accordingly, he thought it just as critical to anticipate international problems as it was to successfully resolve them afterwards, with the result that he became an ardent and early proponent of a much more sophisticated global strategy after the Second World War. In that context, however, most historians have primarily focused on Stimson's role in the development and use of the atomic bomb against Imperial Japan, though arguably less on his more sweeping grand strategic designs. Consequently, the present article will attempt to offer a more comprehensive analysis of Stimson's grand strategic designs, particularly as they related to his vision and reflections on the necessary ingredients of a more peaceful, stable and secure interstate system.  相似文献   
8.
In the late 1980s, a collaborative effort between Harvard University’s Lower Mississippi Survey and Tulane University’s Center for Archaeology launched a study examining the causes and consequences of subsistence change in the Lower Mississippi Valley. The Osceola Project contributed the first formal study of late prehistoric faunal remains within the Alluvial Plain, becoming the standard against which all subsequent Coles Creek faunal assemblages have been measured. Recent evidence recovered from three sites located in the Eastern Uplands presented the opportunity to compare and contrast vertebrate subsistence in these two distinct physiographic regions. We hypothesize that a clear distinction exists between lowland and upland Coles Creek procurement strategies. This article evaluates this claim by examining species diversity, spatial patterns, and temporal trends evident within an eight-site sample. The results suggest that the primary factor influencing Coles Creek fauna procurement was the immediate environment, and that the composition of Late Woodland period diets may be a reflection of efficiency of effort rather than food access or scarcity.  相似文献   
9.
Contemporary Australian Indigenous policy changes rapidly and regularly fails to deliver its stated aims. Additionally, political and social relationships between Aboriginal and Torres Strait Islander peoples and the Australian state remain complex and contested. This article draws on critical Indigenous theory, alongside the increasingly influential scholarly paradigm of settler colonialism, to draw these two elements together. It highlights the ongoing nature of colonial conflict, and the partisan nature of state institutions and processes. While policy is usually framed as a depoliticised, technical practice of public management for Indigenous wellbeing, I suggest that it also seeks to ‘domesticate’ Aboriginal and Torres Strait Islander peoples, perform their dysfunction and demonstrate state legitimacy. This is especially the case in Australia, which has a long tradition of framing domestic welfare policy – rather than legal agreements – as the ‘solution’ to settler colonial conflict.  相似文献   
10.
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