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Modern computer systems use concurrent and distributed processing, which is very diierent from the sequential processing of earlier systems. Concurrency and synchro-nisation in such systems have multiplied the diiculties associated with analysing their correctness and performance. Generalised Stochastic Petri nets (GSPNs) allow for a natural expression of(More)
BACKGROUND Little has been reported about the impact of tracheoesophageal (TE) speech on individuals in the Middle East where the procedure has been gaining in popularity. After total laryngectomy, individuals in Europe and North America have rated their quality of life as being lower than non-laryngectomized individuals. The purpose of this study was to(More)
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