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Blind Source Separation techniques, based both on Independent Component Analysis and on second order statistics, are presented and compared for extracting partially hidden texts and textures in document images. Barely perceivable features may occur, for instance, in ancient documents previously erased and then rewritten (palimpsests), or for transparency or(More)
A study of linkage between Becker muscular dystrophy and four X chromosome-specific DNA polymorphisms in 17 kindreds has indicated that this gene is located in Xp, as already anticipated by single pedigree analysis. In particular the DXS43 and DXS9 loci, identified by probes D2 and RC8, respectively, are closely linked to each other and are both located at(More)
INTRODUCTION Although optimization of atrioventricular and interventricular delays has been demonstrated to improve hemodynamics in patients with cardiac resynchronization therapy (CRT), the required time-consuming procedure discourages its use in clinical practice. Recently, a new method for CRT optimization based on the intracardiac electrogram (IEGM)(More)
A fossil bark from a complete Sequoia trunk recovered near Istanbul (Turkey) was investigated to assess the degree of degradation of some of its components with respect to a modern Sequoia. Polyoses were studied by cation exchange technique while terpenes with GC/MS analyses of the dichloromethane extracts. Exchange measurements have shown the loss of(More)
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