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Contact with nature is vital for the development of children and teenagers. In the past, informal urban green spaces (IGS) such as vacant lots appear to have been used for such purposes. We need to better understand how previous generations used IGS to make sure young people today can also enjoy its social, mental, emotional and physical health benefits. This study quantitatively compared adult residents' memories of IGS use in their childhood and teenage years in two geographically and culturally distinct cities: Brisbane, Australia, and Sapporo, Japan. The results showed most respondents (>70%) remembered using IGS in the past, and preferred it over other green space because it was easily accessible. Most (>70%) recalled experiencing no problems (e.g. danger of injury) when using IGS, a contrast to recently increasing parental concern for children's safety. Such factors may limit present IGS use and prevent it from fulfilling the important role it played for previous generations' recreation.  相似文献   
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Vandana Desai  Alex Loftus 《对极》2013,45(4):789-808
In this paper, we seek to revisit earlier work on the theory of rent, situating it in the current period of economic crisis and in relation to informal housing in the global South. More than ever, land is treated as a pure financial asset. Finance capital now exerts a profound influence over the production of space and exposes the built environment to the kinds of speculative binges that we have witnessed over the last decade. This is now as much a feature of living conditions in the poorest settlements of the global South as it is in the financial heartlands of the global North. We question key assumptions behind development interventions by arguing that infrastructural upgrading may decrease the security of tenure of residents of informal housing and call for a more nuanced approach that recognises the (post)colonial histories of urbanisation structuring access to land and housing.  相似文献   
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Board games have a wide and complex distribution in the ancient world. Two board games from antiquity that were transmitted across the borders of empires and city states and played for nearly two millennia show only minor changes in the appearance of the board. This lack of branching for antique board games can be explained by the abstract characteristics of the games and the dominance of certain cultures in antiquity. A historical analysis of their transmission process supports this hypothesis.  相似文献   
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