<?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%">Gheorghe Paun</style></author><author><style face="normal" font="default" size="100%">Mario J. Pérez-Jiménez</style></author><author><style face="normal" font="default" size="100%">Agustín Riscos-Núñez</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tissue P systems with cell division</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of Computers, Communications and Control</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">cell division rule</style></keyword><keyword><style  face="normal" font="default" size="100%">NP-complete problem</style></keyword><keyword><style  face="normal" font="default" size="100%">SAT problem</style></keyword><keyword><style  face="normal" font="default" size="100%">Tissue-like P systems</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.journal.univagora.ro/?page=article_details&id=139</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Agora University Editing House - CCC Publications</style></publisher><pub-location><style face="normal" font="default" size="100%">Oradea, Romania</style></pub-location><volume><style face="normal" font="default" size="100%">III</style></volume><pages><style face="normal" font="default" size="100%">295-303</style></pages><abstract><style face="normal" font="default" size="100%">In tissue P systems several cells (elementary membranes) communicate through symport/antiport rules, thus carrying out a computation. We add to such systems the basic feature of (cell--like) P systems with active membranes -- the possibility to divide cells. As expected (as it is the case for P systems with active membranes), in this way we get the possibility to solve computationally hard problems in polynomial time; we illustrate this possibility with SAT problem.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><custom1><style face="normal" font="default" size="100%">0.715</style></custom1><custom2><style face="normal" font="default" size="100%">102/175 - Q3</style></custom2></record></records></xml>