Relações entre condutividade hidráulica, transmissividade, condutância longitudinal e sólidos totais dissolvidos para o aquífero livre de Caçapava do Sul (RS), Brasil

A água subterrânea é um importante recurso ao abastecimento público, principalmente para comunidades periféricas em grandes cidades ou pequenos municípios, onde a instalação ou prolongamento de sistemas de distribuição são economicamente inviáveis. Estudos voltados à análise da vulnerabilidade de aquíferos são relevantes para subsídio a políticas públicas em saneamento básico e preservação ambiental. Este estudo contou com o cadastro de 23 poços rasos localizados no município de Caçapava do Sul (RS), onde foram realizadas medidas de resistividade elétrica e cargabilidade por meio de geofísica, e medidas diretas de condutividade hidráulica e sólidos totais dissolvidos. A análise estatística dos dados demonstrou diversos graus de correlação entre parâmetros, basicamente condicionados a fatores geológicos como porosidade, permeabilidade e sólidos totais dissolvidos.

Federalismo e relações intergovernamentais no Brasil: a reforma de programas sociais

The article analyses the process of reform in four areas of social policies that affect directly the interests of sub-national governments: basic education, social housing programs, basic sanitation and health. As the study reveals, despite the varying degree of success achieved in the various policy initiatives and contrary to the expectations of the prevailing interpretations of the nature of Brazilian federalism, the federal government faced no insurmountable hurdles in implementing their reform agenda. The study aims at demonstrating that (i) in the absence of any constitutional mandatory requirement, the political autonomy of local governments - typical of federative States - actually enhances the veto power of local governments over policy initiatives proposed by the federal Executive branch. However, (ii) power resources available to the federal Executive branch - such as agenda definition and vetoing powers - in addition to control over resources that are essential to the political survival of the representatives increase the chances of success-of the federal government. Furthermore, (1999), (iii) the constitutional authority of Brazilian states is far more limited than that of the North-American states; (iv) the category federalism, however, is not sufficient to define the potential stability of specific policies, which depends upon how inter-governmental relations are structured in each particular policy. Specifically, (v) constitutional rules, legacies from previous policies and the political cycle frame the decision arenas in various ways, thus conditioning both the strategies and chances of success of the federative players.

As Relações Comerciais do Brasil com os demais BRICs

Incluye bibliografía

Los países latinoamericanos con capacidad farmoquímica propia: Argentina, Brasil, México

Incluye Bibliografía

La coordinación de las políticas macroeconómicas en el contexto de la integración latinoamericana: una primera aproximación para el caso de la integración entre Argentina y Brasil

Incluye Bibliografía

Influência do arcabouço hidroestratigráfico nas ocorrências de arsênio em águas subterrâneas ao longo do corredor termal do rio Uruguai (Argentina - Brasil - Uruguai)

The Thermal Corridor of Uruguay River is located in the triple border of Argentine, Brazil and Uruguay, and shows an intense economic thermal tourism activity, mainly based on groundwaters from Guarani Aquifer System (GAS). Recent studies have pointed out the occurrence of high concentrations of arsenic (>10 μg/L) in GAS groundwater in this area. The complex geological and hydrogeological framework in the area is associated to the Paraná Basin geological evolution south of the Assuncion-Rio Grande Arch; it encompass paleozoic marine sequences and continental sequences permian/eotriassic to mesozoic in age, which are covered by basaltic lavas of Serra Geral Formation. Iron oxide coatings have been described in sandstones of Buena Vista and Sanga do Cabral formations, which underlie GAS units. Arsenic occurrence is associated to sodium bicarbonate groundwater with pH values over 8.0. Arsenic is released to groundwater by desorption from iron oxides/hydroxides, as result of the higher pH of these waters, indicating that arsenic is released from the units that underlie GAS units. Increase in chromium and uranium concentrations are also related to high pH groundwaters, thus indicating special care on using groundwater from this region.

La especialización exportadora y sus efectos sobre la generación de empleos: evidencia para Argentina y Brasil

Incluye Bibliografía

El comercio exterior y la generación de empleo de Argentina con el MERCOSUR: la especialización exportadora e importadora de Argentina con Brasil

Incluye Bibliografía

Empresas transnacionales manufactureras en cuatro estilos de reestructuración en América Latina: los casos de Argentina, Brasil, Chile y México después de la sustitución de importaciones

Incluye Bibliografía

Contribución al crecimiento económico de las tecnologías de la información y las comunicaciones y de la productividad en la Argentina, el Brasil, Chile y México

Incluye Bibliografía

Mejores prácticas en materia de defensa de la competencia en Argentina y Brasil: aspectos útiles para Centroamérica

Incluye Bibliografía

Los sistemas nacionales de inversión pública en Argentina, Brasil, México, Venezuela y España como caso de referencia (cuadros comparativos)

Incluye Bibliografía

¿Hacia dónde va el gasto público en educación?: logros y desafíos, volumen IV: una mirada comparativa: Argentina y Brasil

Incluye Bibliografía

Steelplant technological development in Latin America: a comparative study of the selection and upgrading of technology in plants in Argentina, Brasil, Colombia, Mexico and Peru

Includes bibliography