Pedro Alberto Barbetta

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—In the past ten years, the software aging phenomenon has been systematically researched, and recognized by both academic, and industry communities as an important obstacle to achieving dependable software systems. One of its main effects is the depletion of operating system resources, causing system performance degradation or crash/hang failures in running(More)
OBJECTIVE To analyze, by means of "Item Response Theory", an instrument to measure adherence to t treatment for hypertension. METHODS Analytical study with 406 hypertensive patients with associated complications seen in primary care in Fortaleza, CE, Northeastern Brazil, 2011 using "Item Response Theory". The stages were: dimensionality test, calibrating(More)
OBJECTIVES The objective of the study is to analyze the validity of the prediction equations for the resting metabolic rate (RMR) proposed by Harris and Benedicti (1919), Schofield (1985), WHO/FAO/ UNU (1985), Henry and Rees (1991), Molnár and cols. (1995), Tverskaya and cols. (1998) and Müller and cols. (2004) in adolescent girls (51 girls between 10 and(More)
Nearly every well installation process nowadays relies on some sort of risk assessment study, given the high costs involved. Those studies focus mostly on estimating the total time required by the well drilling and completion operations, as a way to predict the final costs. Among the different techniques employed, the Monte Carlo simulation currently stands(More)
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