B. O. Rodrigues

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The vast use of computers on scientific numerical computation makes the awareness of the limited precision that these machines are able to provide us an essential matter. A limited and insufficient precision allied to the truncation and rounding errors may induce the user to incorrect interpretation of his/hers answer. In this work, we have developed a(More)
Paraneoplastic syndromes are indirect manifestations of cancer due to functional peptides/hormones produced by a tumour, or due to cross reactivity between tumour and host antigens. Here the case of a 58-year-old woman presenting with ataxia, paraesthesia and subacute and progressive loss of vision is reported. The patient exhibited strong serum positivity(More)
We have assembled a tiled array (220 cm) of fine pixel (0.6 mm) imaging CZT detectors for a balloon borne widefield hard X-ray telescope, ProtoEXIST2. ProtoEXIST2 is a prototype experiment for a next generation hard X-ray imager MIRAX-HXI on board Lattes, a spacecraft from the Agencia Espacial Brasilieira. MIRAX will survey the 5 to 200 keV sky of Galactic(More)
Background Plant tissue culture is a biotechnology particularly relevant to plant genetic transformation. The ability of in vitro regeneration is one of the requirements for the production of usable plants in breeding programs [1]. As each genotype has a specific regeneration potential, several protocols have been developed with the aim of developing(More)
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