L. Ferreiro

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The Bispectral Index (BIS) is a single numeric value that indicates the depth of hypnosis by estimating the level of electrical activity in the brain through analysis of the frequency bands in the electroencephalogram. The BIS was primarily developed to monitor the level of hypnosis during surgery and has recently begun to be used in critically-ill(More)
BACKGROUND Middle latency auditory evoked potentials (MLAEP) reflect changes in electroencephalogram waves after an auditory signal and represent the earliest cortical response to acoustic stimulus. They are therefore used to measure variations in the level of consciousness. MLEAP have been used to measure the depth of anesthesia during surgical procedures,(More)
The scientific papers of the revised literature are not a unit when considered terminologically for automated retrieval. A 60-80% of the total valid references obtained through each data base was stored in the computer memory in virtually closed compartments although they belonged to the same material complex. The retrieval of these papers requires(More)
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