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Production of docosahexaenoic acid (DHA) from Thraustochytrium sp. ATCC 26185 using differents nitrogen concentrations.

this work it was studied th e polyunsaturated fatty acids (PUFAs) production, especially DHA, from Thraustochytrium sp. ATCC 26185, under different total nitrogen (TN) availability. Three different TN conditions were evaluated: two with initial concentrations of 2.4 g/L and 0.8 g/L, and the third in...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 3:26 PM

Atributos físicos de solo cultivado com pinhão manso e coberturas verdes associadas

O cultivo do pinhão manso (Jatropha curcas L.) é uma opção sustentável ao biodiesel pela adaptação às diferentes condições agroecológicas e pelo alto teor de óleo não comestível nos grãos. A possibilidade de plantio em solos degradados e de baixa fertilidade natural torna-o atrativo ...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 3:18 PM

The influence of urban effect on lightning activity: evidence of weekly cycle.

A cloud-to-ground (CG) lightning data provided by the Brazilian lightning detection network (BrasilDAT) for a ten year period (19992008), and particulate matter (PM10), sulfur dioxide (SO2) and air temperature data from the environmental agency of São Paulo State (CETESB) for the same period, were ...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 3:15 PM

The role of the Amazon Basin moisture in the atmospheric branch of the hydrological cycle: a lagrangian analysis.

We used a Lagrangian model (FLEXPART) together with the 1979-2012 ERA-Interim reanalysis data to investigate the role of the moisture in the Amazon Basin in the regional hydrological budget over the course of the year. FLEXPART computes budgets of evaporation minus precipitation by calculating chang...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 3:09 PM

Satellite precipitation in southeastern South America: how do sampling errors impact high flow simulations?

Satellite precipitation estimates are increasingly available at temporal and spatial scales of interest to hydrological applications and with the potential for improving flood forecasts in data-sparse regions. This study evaluates the effect of sampling error on simulated large flood events. Synthet...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 3:03 PM

Why have land use change models for the Amazon failed to capture the amount of deforestation over the last decade?

Land cover change in the Neotropics represents one of the major drivers of global environmental change. Several models have been proposed to explore future trajectories of land use and cover change, particularly in the Amazon. Despite the remarkable development of these tools, model results are stil...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 2:58 PM

Dimensão institucional da sustentabilidade e gestão ambiental no município de Moju, Pará: uma aplicação do Barômetro da Sustentabilidade.

Poucas ferramentas de análise de sustentabilidade têm sido aplicadas na Amazônia, em particular no Estado do Pará. Os municípios paraenses inseridos no Polo Biodiesel, com destaque para Moju, vivem uma fase de intensos investimentos agroindustriais com vistas à produção de palma de óleo (ó...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 2:50 PM

Lightning casualty demographics in Brazil and their implications for safety rules.

A 10-year study of lightning fatalities in Brazil is presented. It is the most complete study undertaken in South America. The study indicates the death rates in the country sorted by season, state, city, type of region, age, gender and circumstances. Ten years of data were collected from the Federa...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 2:45 PM

Shallow landslide prediction and analysis with risk assessment using a spatial model in a coastal region in the state of São Paulo, Brazil.

This study presents a methodology for susceptibility mapping of shallow landslides just from data and software from the public domain. The study was conducted in a mountainous region located on the southeastern Brazilian coast, in the state of São Paulo. The proposal is that the methodology can be ...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 2:38 PM

Innovations for a sustainable future: rising to the challenge of nitrogen greenhouse gas management in Latin America.

Latin America encompasses a dizzying array of ecosystems and socioeconomic models, and the region will be highly vulnerable to the projected impacts of climate change in the next century. At the same time, Latin America can significantly contribute to the mitigation of greenhouse gases (GHG) emissio...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 2:35 PM

Influence of the rainfall seasonal variability in the Caatinga vegetation of NE Brazil by the use of time-series

The climate in the Caatinga, especially precipitation, influences the pattern of spatial and temporal distribution of the vegetation that in turn influences the regional climate from the feedback mechanism of energy flows, water and momentum. This climate-vegetation interaction in the Caatinga is di...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 2:32 PM

Improvements on lightning density estimation based on analysis of lightning location system performance parameters: brazilian case.

Density maps are one of the most common and powerful lightning data applications, and they are more efficient the more detailed they are. When working with CG lightning data from lightning location systems, some aspects must be included in the analysis to overcome network performance variations. Two...
  • por Portal Padrão
  • publicado
  • 20/08/2014
  • 2:28 PM