Baylisascaris procyonis, the raccoon roundworm responsible for fatal larva migrans in humans, has long been thought to be absent from many regions in the southeastern United States. During spring 2002, 11 (22%) of 50 raccoons trapped in DeKalb County, Georgia, had B. procyonis infection. The increasing number of cases highlight this emerging zoonotic infection.

Every day thousands of individuals in the greater DC area use the WMATA Metro system to get from place to place. The Metro has collected a lot of information on riders including when and where they pass through turnstiles. In “the spirit of open data and collaboration,” the Metro has released data on stationto-station rider counts (1). The release was an open invitation for the public to analyz...

1. Sengupta R, Rosenschein L, Gilbert M, Weiller C. Ecoregional dominance in spatial distribution of avian infl uenza (H5N1) outbreaks. Emerg Infect Dis. 2007;13:1269–70. 2. Jourdain E, Gauthier-Clerc M, Bicout DJ, Sabatier P. Bird migration routes and risk for pathogen dispersion into western Mediterranean wetlands. Emerg Infect Dis. 2007;13:365–72. 3. Olsen B, Munster VJ, Wallensten A, Walden...

In the mountains north of New York City a number of cities and towns are being absorbed by the suburbs of one of the largest cities on the planet. The existence of independent communities has created some confusion in terms of classification in the past. Since 1970, Orange County has variously been classified as part of the Newburgh-Middletown Metropolitan Area, the Poughkeepsie-Newburgh Metrop...

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This paper analyzes redistribution by municipalities in a metropolitan area using the classical model of residential land use in a monocentric city. Crossing bid rent curves lead to spatial segregation of household types which might shield high-income households from redistribution by municipalities. If rich households live farer away from the central business district than poor households, the...

fast and unplanned city growth, has effects such as isolation of village societies, threatening urbancores and centers and small and weak societies, destruction of open spaces and open and natural regions. smart growthoffers a sustainable way for urban developing with appropriate use of available sources, increase of urban services,developing neighborhoods with different uses, making public tra...

This paper provides a preliminary analysis of the importance of metropolitan area government structure on socioeconomic inequality in approximately 70 metropolitan areas in the United States. This study particularly focuses on meaningful classification of metropolitan areas according to their government structure and its possible relationship to measures of inequality, such as the Gini coeffici...

Nowadays, Tehran Urban and Suburban Railway System (TUSRS) is going to be completed by eight lines and 149 stations. This complex transportation system contains 168 links between each station pairs and 20 cross-section and Y-branch stations among all eight lines. In this study, we considered TUSRS as a complex network and undertook several analyzes based on graph theory. Examining e.g. centrali...