David Fraile

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Here, we present a modi"cation of Shapiro's embedded zerotree wavelet algorithm (EZW) for image codec. Shapiro's technique is based on the wavelet transform and on the self-similarity inherent in images. In the EZW, the wavelet transform (WT) coe$cients, which provide a multiresolution representation of the image, are arranged according to their signi"cance(More)
INTRODUCTION In Spain, current legislation does not allow to dispense drugs without medical prescription. There are no drugs totally exempt of producing secondary effects, the inappropriate use of antibiotics may lead to emergent resistances and it causes an unjustified expenditure. OBJECTIVES To determine whether drugs for pediatric use are being(More)
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