The strong world-wide urbanisation trend calls for a repositioning of cities, especially the large cities with a global impact. These cities tend to become economic, logistic and political powerhouses and are increasingly involved in a competition on their integral performance. The present paper aims to trace to what extent and why some cities outperform others. Starting from an extensive datab...

OBJECTIVES The objective of this paper is to provide a detailed description of Internet-based sexually transmitted disease/human immunodeficiency virus prevention in the 8 US cities most affected by syphilis in men who have sex with men. GOAL By reviewing the efforts under way in these 8 cities, we will understand the barriers and facilitators associated with Internet-based prevention efforts...

Driven by rising income and urban population growth, China has experienced rapid urban expansion since the 1980s. Urbanization can have positive effects on the urban environment; however, improvement of urban environment quality, especially its divergence between relatively developed and undeveloped cities in China, is currently a rather rudimentary and subjective issue. This study analyzed urb...

OBJECTIVE To determine epidemiology of cardiovascular risk factors according to geographic distribution and macrolevel social development index among urban middle class subjects in India. METHODS We performed cross-sectional surveys in 11 cities in India during years 2005-2009. 6198 subjects aged 20-75 years (men 3426, women 2772, response 62%) were evaluated for cardiovascular risk factors. ...

This paper is about the efficient generation of dense, colored models of city-scale environments from range data and in particular, stereo cameras. Better maps make for better understanding; better understanding leads to better robots, but this comes at a cost. The computational and memory requirements of large dense models can be prohibitive. We provide the theory and the system needed to crea...

In 2004, Huai River Basin’s total gross domestic product (GDP) was estimated at 1.05 trillion Yuan, which is 148% higher than 1994 records. It is a preponderantly evolving area in China. The numbers of industries serviced by the Huai River Basin are continuously on the increase including paper industry, production of coal chemical, textiles and food processing. One major industry having unprece...

This paper assesses the claim that sanctuary cities – defined as cities that expressly forbid city officials or police departments from inquiring into immigration status – are associated with post-hoc increases in crime. We employ a causal inference matching strategy to compare similarly situated cities where key variables are the same across the cities except the sanctuary status of the city. ...

Similar to physical cities, which emerged over many years in the physical world, we envision many kinds of large-scale “information cities” (iCities) to emerge over the Internet in the coming years. Some of these iCities will mimic small and large “physical” cities. They will provide local and global information and various valueadded services to inhabitants. Just like physical cities, these in...