Razao Sr:Ba:Rb e tipologia de zircao em granitoides dos Estado de Sao Paulo, Parana e Minas Gerais

Chemical (Sr:Ba:Rb) and zircon typology data from the Nazare Paulista, Mairipora/Cantareira, Cunhaporanga, Tres Corregos, Morungaba, Socorro, Itu, Graciosa and Serra Carambei granitoid complexes from the states of Minas Gerais, Sao Paulo and Parana (SE/S Brazil) are presented and discussed. By the zircon typology method these complexes are refered, respectively, to the 2nd crustal, 3rd crustal/low temperature C-A, low temperature C-A, medium temperature C-A, medium/light temperature C-A, K-SA/Alkaline and alkaline series which are considered as generated under increasing temperature associated with a progressive major participation of mantle material. All these series display different positions and behaviour in the Sr:Ba:Rb diagram which reinforces the use of the zircon typology method in the study of granitoids. -from English summary

Caracterizacao litoquimica e aspectos petrologicos de rochas vulcanicas da Formacao Serra Geral: regiao centro-sul do Estado do Parana

This work defines the main volcanic types of Central-Southern Parana State (Serra Geral Formation), their stratigraphic relations, and which petrological process are able to explain the observed volcanic associations. -from English summary

Estudo econômico da América Latina e do Caribe 2012: as politicas ante as adversidades da economia internacional. Documento informativo

Includes bibliography

Desarrollo y politicas redistributivas de poblacion; version preliminar

Incluye Bibliografía

Politicas de redistribucion espacial de la poblacion: una bibliografia anotada

Incluye Bibliografía

Las politicas de poblacion en el contexto del desarrollo economico y social

Incluye Bibliografía

Estado actual de las politicas de redistribucion espacial de la poblacion en America Latina; documento de referencia general

Incluye Bibliografía

Las politicas de poblacion en America Latina, 1974-1977; version preliminar

Documento disponible en otra versión (4072.00)

Algunas reflexiones sobre los censos de 1980 en la perspectiva de la investigacion sociodemografica y las politicas de poblacion en America Latina

Documento disponible en otra versión (1957.00)

Sprawling and Urban transportation system: Impacts in the city of Londrina, Parana, Brazil

After nearly 80 years since the construction of its core, represented today by the city's central area, Londrina, located in the state of Parana, has the appearance of a new city but its features and trends of planning policies depict the bad examples of Brazilian cities. With a booming urban growth, from north to south of the county, the urban interstices represented by big voids in the middle of the city created speculation and the concept of an ideal city slowly disappeared. With a metropolitan appearance and, at the same time, with small town aspects, Londrina stands out as an automobile-oriented city, a fact that has impacted the livelihood of the population, generating environmental impacts for all social classes. This paper discusses how the form of occupation in Londrina, characterized by the sprawl phenomenon and its relation to car preference as a mode of transportation has generated urban environmental impacts. It was concluded that the choice of using cars in Londrina, as well in other medium-sized Brazilian cities studied by the comparative method, has increased and has generated bottlenecks in traffic. As a consequence, there is a constant expropriation of properties for widening roads and at the same time, the presence of various densities and urban voids that form an uneven urban space and an obstacle to efficient urban planning. © 2012 WIT Press.

Teorias y politicas de poblacion

Incluye Bibliografía

Primera Reunion Tecnica de Intercambio entre Organismos Gubernamentales Responsables de las Politicas de Poblacion en America Latina; aspectos generales

Este documento describe los objetivos especificos, el material de trabajo y la agenda provisoria de la Primera Reunion Tecnica de Intercambio entre Organismos Gubernamentales Responsables de las Politicas de Poblacion en America Latina, a efectuarse en Costa Rica en Noviembre de 1976

El contexto demografico de las politicas de poblacion en America Latina

Incluye Bibliografía

El marco institucional de las politicas de poblacion

Incluye Bibliografía

Las politicas relativas a la fecundidad

Incluye Bibliografía