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Multi-agent simulator for urban segregation (MASUS): a tool to explore alternatives for promoting inclusive cities.

Urban segregation represents a significant barrier to achieving social inclusion in cities. To mitigate this problem, it is necessary to implement policies founded upon a better understanding of segregation dynamics. This paper proposes MASUS, a multi-agent simulator for urban segregation, which pro...
  • por Portal Padrão
  • publicado
  • 22/03/2011
  • 1:39 PM

Climate change and thresholds of biome shifts in Amazonia.

We examine potential critical thresholds for biome shift in the Amazonian tropical forest by forcing a potential vegetation model with prescribed climate anomalies and projections from global and regional climate models and different levels of CO2 fertilization effect under the SRES A2 scenario (207...
  • por Portal Padrão
  • publicado
  • 26/09/2010
  • 1:22 PM

PIRATA: project over the Tropical Atlantic: the brazilian experience.

An overview of the international PIRATA project over the tropical Atlantic and its impacts on the development of basin scale oceanographic research in Brazil are presented. In a nutshell, the PIRATA project is a consortium between Brazil, France and the United States for the establishment of a moore...
  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:35 PM

Climate control of terrestrial carbon exchange across biomes and continents.

Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate-carbon cycle feedbacks. However, directly observed relationships between ...
  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:32 PM

Mudanças na circulação atmosférica sobre a América do Sul para cenários futuros de clima projetados pelos modelos globais do IPCC AR4.

Neste trabalho são analisadas as mudanças no padrão de circulação que possam vir a acontecer no clima da América do Sul (AS), como conseqüência do aumento nas concentrações dos gases de efeito estufa. Para isto utilizam-se cinco modelos globais do IPCC AR4 (CCCMA, GFDL, HadCM3, MIROC e GIS...
  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:30 PM

Deforestation and conservation in major watersheds of the Brazilian Amazon.

Conserving natural vegetation cover is of critical importance for maintaining the ecological integrity and hydrological properties of large river basins (more than 100 000km2). Recent estimates indicate that more than 700 000km2 of Brazilian Amazon have already been deforested, and to reduce further...
  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:28 PM

Design of a dry cover pilot test for acid mine drainage abatement in southern Brazil, Part II: pilot unit construction and initial monitoring.

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  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:27 PM

An earth-system prediction initiative for the twenty-first century.

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  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:26 PM

A comparative study of negative cloud-to-ground lightning characteristics in São Paulo (Brazil) and Arizona (United States) based on high-speed video observations.

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  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:25 PM

Desmatamento, trajetórias tecnológicas rurais e metas de contenção de emissões na Amazônia.

...
  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:24 PM

Variability of carbon dioxide flux from tropical (Cerrado) hydroelectric reservoirs.

Hydroelectric reservoirs generate energy without significant combustion of fossil fuels. However, these systems can, potentially, emit greenhouse gases (GHGs) at a rate which may be significant at the global scale, and, possible, co-equal, per kilowatt-hour, to that from conventional coal or oil-fir...
  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:21 PM

Is the forest conversion to pasture affecting the hydrological response of Amazonian catchments? signals in the Ji-Paraná basin.

It is well known that land use and land-cover changes (LUCC), particularly deforestation, have the potential to modify the hydrological response. Although those signals are relatively well documented in worldwide microcatchment studies, conflicting results reported in literature indicate that those ...
  • por Portal Padrão
  • publicado
  • 26/08/2010
  • 1:20 PM