Simone Siqueira Mattos

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We propose a denoising and segmentation technique for the second heart sound (S2). To denoise, Matching Pursuit (MP) was applied using a set of non-linear chirp signals as atoms. We show that the proposed method can be used to segment the phonocardiogram of the second heart sound into its two clinically meaningful components: the aortic (A2) and pulmonary(More)
Over the years, many attempts have been made to develop special stethoscopes for the teaching of auscultation. The objective of this article is to report on the experience with the development and implementation of an electronic stethoscope and a virtual library of cardiac sounds. There were four stages to this project: (1) the building of the prototype to(More)
OBJECTIVE To evaluate the role of quality indicators and adverse events registering in the quality assessment of intensive care physiotherapy and to evaluate the impact of implementing protocolized care and professional training in the quality improvement process. METHODS A prospective before-after study was designed to assess 15 indicators of the quality(More)
Fos expression in the prefrontal cortex and mesencephalic dorsal raphe nucleus in lactating rats after social instigation Abstract Females are often less aggressive than males, but they exhibit high levels of agonistic behavior against an intruder in the area of the nest during lactation. This behavior is referred to as maternal aggression. In rats,(More)
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