人口老龄化呼唤老年医疗保障

我国人口老龄化进程加快,迫切需要建立健全老年人的医疗保障体系。简述了人口老龄化与老年人医疗卫生问题与支付能力,说明了在我国建立老年医疗保障制度的重要性及意义,并提出：针对社区老年人医药费用的不同负担形式与经济承受能力,建立不同收入、不同需求、不同形式的老年医疗保障制。     

Safety perceptions and reported behavior related to cycling in mixed traffic: A comparison between Brisbane and Copenhagen

This study explores the differences in safety perceptions and reported behavior of cyclists in mixed traffic between an emerging cycling city (Brisbane, Australia) and an established cycling city (Copenhagen, Denmark). Perceptions and reported behavior were retrieved from a custom-designed web-based survey administered among cyclists in the two cities. Elicited items concerned perceived risk of infrastructure layouts, fear of traffic, cycling while distracted, use of safety gear, cycling avoidance due to feeling unsafe, and avoidance to cycle in mixed traffic conditions. The data were analyzed with structural equation models. Results show that, in comparison with cyclists in Copenhagen, cyclists in Brisbane perceive mixed traffic infrastructure layouts as less safe, feel more fear of traffic, and are more likely to adopt cycling avoidance as a coping strategy. Results also show that cyclists in Copenhagen tend to use less helmets and to cycle more while being distracted.     

Growing Suburbs,Relocating Churches: The Suburbanization of Protestant Churches in the Chicago Region, 1925–1990

This study examines the locations of Protestant churches in the Chicago region between 1925 and 1990 based on data from the Church Federation of Greater Chicago. The analysis adds two insights to existing explanations of white flight and the corresponding suburbanization of churches: suburbanization patterns were not the same across Protestant groups and churches moving to the suburbs were adding to churches already present in those communities. As the percentage of suburban Protestant churches in the Chicago region started increasing after 1925, the new suburban locations were influenced by settlement patterns in the Chicago region—first along railroad lines and then in between with new sites easier to access by automobile—in addition to racial changes in Chicago neighborhoods and the ethnic composition of denominations. Suggestions for further research include examining the suburbanization of religious groups in more metropolitan regions (particularly beyond the North), comparing the discussions about moving to the suburbs across denominations and congregations, and considering how religious congregations have helped shape suburban communities.     

The Diversity–Segregation Conundrum

There is a long literature extolling the virtues of diversity for both the civility and economic performance of nations and cities. On the most basic level, diversity helps nations and cities attract the wide range of creative talent that drives innovation and economic growth. Yet similarly, there is a large amount of literature on the sorting and segregation of different types of people into distinct communities. This in turn undermines the very mixing of people and groups required for economic prosperity to flourish. This essay looks at the conundrum between diversity and segregation. It argues that both are increasingly salient, interdependent, and interconnected features of large, advanced cities or metropolitan areas. This diversity–segregation conundrum is increasingly a core feature of our social and economic landscape. It reviews several recent studies that highlight this problem, as well as some of my own very recent empirical findings on the issue.     

Happiness in shrinking cities in Germany

After decades of urban growth, modern societies now face an increasing number of shrinking cities. What is the impact on the inhabitants of shrinkage of their city? Negative effects dominate in the public discourse, but does growth or shrinkage really matter for the livability in urban environment? In this paper, I take stock of the effect on subjective well-being in present day Germany. Overall satisfaction with life appears not to be lower in shrinking cities and satisfaction with several domains of life even higher. This is not because inhabitants are unaware of the situation of their city, since they appear to be more concerned about job-chances and crime.     

Global cities,global justice?

ABSTRACT

The global city is a contested site of economic innovation and cultural production, as well as profound inequalities of wealth and life chances. These cities, and large cities that aspire to ‘global’ status, are often the point of entry for new immigrants. Yet for political theorists (and indeed many scholars of global institutions), these critical sites of global influence and inequality have not been a significant focus of attention. This is curious. Theorists have wrestled with the nature and demands of global justice, but have for the most part supposed that the debate is between statist and cosmopolitan formulations. Questions of redistribution, immigration, humanitarian obligations, coercion at borders, and territorial rights have correspondingly been cast as either the domain of sovereign territorial states, or of the nascent web of supranational institutions that might bind those states and peoples, morally and legally. Examining some of these issues and arguments through the lens of the global city casts them in a new and informative light, and buttresses an associative turn in thinking about global justice.     

Cities as Collective Beings

This article introduces the concepts of System, Autonomous System, Intelligent System, Multiple System, and Collective Being. It deals with issues related to managing these different levels of systemic aggregation. The author then discusses applications related to Architecture and design with particular reference to cities.     

健康城市建设的新理念及其导向

健康城市的理论与实践的发展以及人类对健康及其决定因素认知的深入使健康城市的内涵和理念不断扩充,吸纳了健康的社会模式及健康决定因素的理念,为健康城市建设注入了新的机制,并成为健康城市建设发展的新导向。我国建设健康城市的实践,从基线评估、规划制定到建设推进,已着力体现国际上健康城市的新理念和导向。     

Heritage space,multiple temporalities,and the reproduction of Guangzhou Overseas Chinese Village

This paper investigates the everyday experiences of long-term residents during the urban heritage revitalization process of Guangzhou Overseas Chinese Village (GOCV) as China's first overseas Chinese village. Drawing upon insights from the recent theories of multiple temporalities, this paper argues that the everyday sensory experiences of long-term residents during the urban heritage revitalization process can be understood through three interconnected temporal modes (past, present, and future). These modes reflect the sociopolitical context of different periods and influence the everyday rhythms and practices of community residents. Specifically, regarding the past, patriotic fervor, a shared identity, and the experience of living collectively have created a “happy home for returned overseas Chinese”. In terms of the present, the market-oriented reform and commodification of housing has had a profound impact on the built forms and meaning systems of the neighborhood, leading to long-term residents' nostalgia for the past and resistance to present changes in the everyday rhythms. Lastly, based on an envisioned future, long-term residents carry out specific preservation practices to maintain and enhance their place identity. This article explores the approaches to enrich the urban heritage research by illuminating the importance of temporality for understanding the spatial (re)production of living urban heritage.     

Monitoring traffic in future cities with aerial swarms: Developing and optimizing a behavior-based surveillance algorithm

Traffic monitoring is a key issue to develop smarter and more sustainable cities in the future, allowing to make a better use of the public space and reducing pollution. This work presents an aerial swarm that continuously monitors the traffic in SwarmCity, a simulated city developed in Unity game engine where drones and cars are modeled in a realistic way. The control algorithm of the aerial swarm is based on six behaviors with twenty-three parameters that must be tuned. The optimization of parameters is carried out with a genetic algorithm in a simplified and faster simulator. The best resulting configurations are tested in SwarmCity showing good efficiencies in terms of observed cars over total cars during time windows. The algorithm reaches a good performance making use of an acceptable computational time for the optimization.