Cesar A. V. Neto

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This article presents a method for the computation of the equivalent bandwidth of an aggregate of heterogeneous self-similar sources, as well as the time scales of interest for queueing systems fed by a fractal Brownian motion (fBm) process. Moreover, the fractal leaky bucket, a novel policing mechanism capable of accurately monitoring self-similar sources,(More)
Smoking behavior is influenced by genetic factors. Polymorphisms affecting the dopaminergic system have been linked to smoking habits. The aim of this study was to investigate if the T102C polymorphism of the 5-HT(2A) receptor gene is related to tobacco use, since this receptor modulates the mesolimbic dopamine system and the C allele is associated with(More)
BACKGROUND Anemia screening before blood donation requires an accurate, quick, practical, and easy method with minimal discomfort for the donors. The aim of this study was to compare the accuracy of two quantitative methods of anemia screening: the HemoCue 201(+) (Aktiebolaget Leo Diagnostics) hemoglobin (Hb) and microhematocrit (micro-Hct) tests. STUDY(More)
UNLABELLED Alanine aminotransferase (ALT) elevation in blood donors can be related to many variables such as viral hepatitis, overweight and ethanol consumption. BACKGROUND/AIMS This study aims to define factors associated with ALT elevation in candidates for blood donation, to evaluate ALT levels during follow-up, and to establish a histological(More)
In this paper, we investigate connection admission management for connections which generate self-similar traffic. We present a simple mathematical framework which does not require restrictive assumptions about the network behaviour. We show how this framework can be used to derive connection admission policies. Several studies [1]-[4] have claimed that(More)
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