Aim: To assess dental caries prevalence in adolescents at urban and sub-urban areas of Maputo-City, Mozambique and to identify its relationship with dental fluorosis, dental plaque, nutritional status, frequency of sugar ...

In this dissertation new models of propagation path loss predictions are proposed by from techniques of optimization recent and measures of power levels for the urban and suburban areas of Natal, city of Brazilian northeast. ...

Trains in Latin America and the Caribbean mainly serve as a means of mass transit, bearing passengers along local and suburban routes of cities and transporting freight beyond. Non-urban passenger trains almost disappeared ...

In this paper the issue of Gated Communities in Latin America is presented through the study of cases in Argentina, Mexico, Colombia and Brazil. After forty years of a strong influence of this foreign model that permeated ...

The decentralized treatment systems for domestic effluents are an economic and sustainable alternative in comparison to conventional wastewater collection and treatment systems in rural and sub-urban areas in developing ...