Stool examination by sedimentation method in 82 homeless individuals living in the streets of Rio de Janeiro City, revealed Ascaris lumbricoides eggs in 40 (48.85%), Trichuris trichiura in 27 (32.9%) and hookworm in 7 (8.5%).

PURPOSE We sought to determine, prospectively, if any race or sex disparities in coronary angiography use was explained by standardized criteria for the procedure. METHODS We prospectively identified 153 patients > or =40 years of age who underwent evaluation for coronary disease from December 1998 to November 1999 at a municipal hospital. Patients requiring angiography were referred to a nea...

An adolescent population ranging in age from 13 to 19 years and of a low socioeconomic status in New York City was surveyed for riboflavin deficiency. Deficiency was determined from estimation of erythrocyte glutathione reductase activity, an accurate reflector of riboflavin nutritional status. The overall prevalence of deficiency among those not on vitamin supplements was 26.6%. The prevalence...

Reconciling the growing proportion of the global population that lives in urban centers with the goal of creating healthy cities for all poses one of the major public health challenges of the 21st century. Genetics has accounted for only 10% of diseases, and the remainder appears to be from the interaction of multiple socio-environmental causes that potentially determine epigenetic changes lead...

Mucosal antral cysts(MACs) appear as dome-shaped soft-tissue opacities and have prevalences of between 1.6% and 8.7% on otherwise normal panoramic radiographs. The aim of this survey was to define the prevalence in the inner-city population in London. A 14% prevalence for MACs was observed in the panoramic radiographs of 1000 consecutive patients attending King's College Hospital dental casualt...

Cities the world over are highly fragmented. The fragmentation of the built-up area cities by the open spaces interpenetrating them is a key attribute of urban-sprawl, and sprawl as fragmentation, as distinct from sprawl as lower-density development, is now a universal feature of cities. Using satellite images and census data for 1990 and 2000 for a global sample of 120 cities, we find that cit...

The recent demographic trends indicate towards a rapidly increasing population growth and a significant portion of this increased population now prefer to live mostly in cities. In connection with this, it has become the responsibility of the government to ensure a quality standard of living in the cities and also make sure that these facilities trickle down to the next generation. A program na...

After the 11 March 2011 tsunami, post-tsunami reconstruction planning has started. In this article several key points and difficulties in the reconstruction plan are introduced based on the experiences of the author, who is part of the planning process. Before explaining the problems with the reconstruction plan, comprehensive planning problems in rural areas are introduced. These problems are ...

The regional economics and geography literature on urban population size has in recent years shown interesting conceptual and methodological contributions on the validity of Gibrat’s Law and Zipf’s Law. Despite distinct modeling features, they express similar fundamental characteristics in an equilibrium situation. Zipf’s law is formalized in a static form, while its associated dynamic process ...

Due to tremendous increase in population, many people living in villages are now migrating to the cities. It is predicted that very soon most of the human civilization will be concentrated in the cities. This increased population will consume more energy and need more space to live. Finally, they will leave behind a more prominent environmental footprint as the cities grow to metropolises. This...