Five age groups (CA 7-9, 10-12, 13-16,120-21,^027) of Ss were selected from two contrasting populations in Urban and Rural Yucatan, Mexico. All Urban Ss were in school, while only the two younger Rural age groups were in school--older Rural Ss had little or no schooling. The Ss were tested on a short-term and inciden-

Assessment of landscape change is critical for attainment of regional sustainability goals. Urban growth assessments are needed because over half the global population now lives in cities, which impact biodiversity, ecosystem structure and ecological processes. Open space protection is needed to preserve these attributes, and provide the resources humans need. The San Francisco Bay Area, Califo...

In this paper, the historical trend of urban growth and the associated drivers were examined through econometric analysis for the rapidly growing Grafton area in the State of Wisconsin. Specifically, panel data analysis was carried out to examine the drivers of urban growth such as demographic factors, location of jobs, travel time, housing types, property values, etc. Results reveal that panel...

Introduction Today it is generally the case that urban dwellers enjoy higher life expectancy than their rural counterparts, globally. This urban advantage is partly attributable to the higher average incomes of urban dwellers, as well as superior access to public health services, including water supply and sewage disposal, and medical services. However this was not the historical norm. In the s...

the urban squatter settlements is an urban phenomenon which is formed and developed by uncontrolled and irregular urbanization growth in the world and in iran as well and also by migration from the villages towards the cities. urban squatter settlements, as an unbalancing factor in the urban physical equilibrium, is a sign of irregular growth in the cities and the regions and many of the urbani...

Urban sprawl, or the unplanned and uncontrolled spreading out of built-up areas in Zaria urban area causes problems of congestion, poor urban basic infrastructure delivery and poor urban planning. This paper analyzed the pattern and implications of urban sprawl using GIS and Remote sensing as an improved approach to analyze and explain sprawling beyond the traditional spatial or cartographic ma...

By 2050, 90% of the population in Latin America will live in cities, but there is a lack of up-to-date spatial information about the urban extent and patterns of urbanization in cities of this region. In this study, we analyzed population growth, urban density and urbanization dynamics between 1992 and 2009 in the major cities of Bolivia, Colombia, Ecuador and Perú using Google Earth and DMSP/O...