Image data from L-band airborne radiometer measurements over conifer forest stands in southern Virginia USA have shown a strong sensitivity to biomass and a weaker sensitivity to soil moisture. The data, was obtained by the horizontally polarized synthetic aperture radiometer, ESTAR, deployed aboard a NASA P3 aircraft. The data was acquired in July, August and November of 1999. The imaged regio...

The article analyzes the Brazilian welfare model according to elements central to the emergence and to the development of social protection systems. It is intended to discuss to what extent the absence or incompleteness of those elements weaken the model built in the 1988 Constitution. The general precepts of social protection are initially presented to characterize and discuss those issues as ...

RESUMO O cuidado domiciliar aos idosos tem no cuidador familiar, geralmente o cônjuge, um grande aliado. Porém, verifica-se que estes freqüentemente têm queixas de saúde. Conhecer o significado de saúde para idosos cuidadores de seus cônjuges, quais as mudanças ocorridas após assumir este papel e como cuidam da própria saúde é o objetivo desse estudo qualitativo exploratório. Foram entrevistado...