The detailed analysis of urban regions is among those areas which most benefited from the availability of high-resolution satellite data such as e.g. IKONOS and QUICKBIRD. These data offer as well high spatial, radiometric and temporal resolution, competing with aerial photographs for several applications. Merging these characteristics allows the detection of intra-urban targets and consequentl...

Despite an absence of causal evidence showing that limited access to healthy foods is to blame for unhealthful consumption, policies aimed at improving poor diets by improving access are ubiquitous. In this paper, we use novel data describing both the healthfulness of household food purchases and the retail landscapes facing consumers to measure the role that access plays in explaining why some...

This paper is a conceptual analysis of the effects of racial residential segregation, which is a major contributor to racial and ethnic health disparities. Metropolitan segregation has had adverse health consequences for economically disadvantaged and minority populations because they are exposed to higher levels of environmental pollutants and have limited opportunities to gain a quality educa...

Urban land cover is one of the fastest global growing land cover types which permanently alters land surface properties and atmospheric interactions, often initiating an urban heat island effect. Urbanisation comprises a number of land cover changes within metropolitan regions. However, these complexities have been somewhat neglected in temperature analysis studies of the urban heat island effe...

  Background :There is substantial lack of knowledge about the role of socioeconomic status (SES) indicators on life expectancy (LE) within-cities, especially within mega-cities. We aimed to investigate the disparities of LE within city districts of Tehran, Iran, and specify how SES inequalities play role on LE.   Methods : The death and population data for 2010 by different age, gender, and re...

Cities are centres of social, cultural, economic and material diversity, where people in the most diverse living situations meet densely populated areas social inequalities or disparities can manifest intensify through spatial concentration population groups. Due to increase inner-city disparities, numerous German-speaking (large) cities have started establish small-scale area reports order be ...

The striking growth of online communities in recent years has sparked significant interest in understanding and quantifying benefits of participation. While research has begun to document the economic outcomes associated with online communities, quantifying the social value created in these collectives has been largely overlooked. This study proposes that online health communities create social...