<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nadia Busi</style></author><author><style face="normal" font="default" size="100%">Miguel A. Gutiérrez-Naranjo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A Case Study in (Mem)Brane Computation: Generating Squares of Natural Numbers </style></title><secondary-title><style face="normal" font="default" size="100%">Lecture Notes in Computer Science</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.springerlink.com/index/n6030wrj402t4531.pdf</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Springer</style></publisher><pub-location><style face="normal" font="default" size="100%">Amsterdam, The Netherlands</style></pub-location><volume><style face="normal" font="default" size="100%">4361</style></volume><pages><style face="normal" font="default" size="100%">233-249</style></pages><isbn><style face="normal" font="default" size="100%">978-3-540-69088-7</style></isbn><abstract><style face="normal" font="default" size="100%">The aim of this paper is to start an investigation and a comparison of the expressiveness of the two most relevant formalisms inspired by membranes interactions, namely, P systems and Brane Calculi. We compare the two formalisms with respect to their ability to act as generator devices. In particular, we show different ways of generating the set  in P systems and in Brane Calculi. 
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