J. A. Barreto

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This paper presents an efficient adaptive algorithm for designing FIR digital filters that are efficient according to an £ ¥ ¤ error criteria. The algorithm is an extension of Burrus' iterative reweighted least-squares (IRLS) method for approximating £ ¥ ¤ filters. Such algorithm will converge for most significant cases in a few iterations. In some cases(More)
Chronic hepatitis C (CHC) has emerged as a leading cause of cirrhosis in the U.S. and across the world. To understand the role of apoptotic pathways in hepatitis C virus (HCV) infection, we studied the mRNA and protein expression patterns of apoptosis-related genes in peripheral blood mononuclear cells (PBMC) obtained from patients with HCV infection. The(More)
BACKGROUND The Kell blood group system expresses high and low frequency antigens with the most important in relation to transfusion including the antithetic KEL1 and KEL2; KEL3 and KEL4; KEL6 and KEL7 antigens. Kell is a clinically relevant system, as it is highly immunogenic and anti-KEL antibodies are associated with hemolytic transfusion reactions and(More)
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