Gabriela S. M. Santos

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An ANN-based automatic classifier for power system disturbance waveforms was developed. Actual voltage waveforms were applied in the training process. Signals were processed in two steps: i) decomposition through wavelet transformation up to the 5th decomposition level; ii) the resultant wavelet coefficients are processed via PCA, reducing the input space(More)
INTRODUCTION Toxoplasmosis during pregnancy can be severe; thus, it is essential to diagnose the disease via serological tests. METHODS An enzyme-linked immunosorbent assay (ELISA) was used to investigate anti-Toxoplasma gondii immunoglobulin A (IgA), M (IgM) and G (IgG) antibodies in 62 high-risk pregnant women. RESULTS Forty-three (69.4%) women were(More)
This paper presents a method to classify the current polluted level on insulator surfaces, i.e., to diagnose the operational conditions of the electrical system isolation through pattern recognition techniques using the ultrasonic signals obtained from surface discharges on outdoor insulators. Pattern extraction techniques on the input signals by Artificial(More)
BACKGROUND Although there are many reports on different techniques in breast reconstruction, there are few data regarding immediate breast reconstruction with definitive form-stable anatomical implants in terms of aesthetics and quality-of-life outcomes. METHODS Ninety-four patients underwent mastectomy with immediate breast reconstruction using(More)
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