<?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%">Miguel A. Gutiérrez-Naranjo</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><author><style face="normal" font="default" size="100%">Francisco J. Romero-Campero</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">How to express tumours using membrane systems</style></title><secondary-title><style face="normal" font="default" size="100%">Progress in Natural Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">membrane system</style></keyword><keyword><style  face="normal" font="default" size="100%">modeling</style></keyword><keyword><style  face="normal" font="default" size="100%">tumour</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://pub.nsfc.gov.cn/pinsen/ch/reader/view_abstract.aspx?file_no=449&flag=1</style></url></web-urls></urls><pub-location><style face="normal" font="default" size="100%">Reino Unido</style></pub-location><volume><style face="normal" font="default" size="100%">17</style></volume><pages><style face="normal" font="default" size="100%">449-457</style></pages><abstract><style face="normal" font="default" size="100%"> In this paper we discuss the potential usefulness of membrane systems as tools for modelling tumours. The approach is followed both from a macroscopic and a microscopic point of view. In the first case, one considers the tumour as a growing mass of cells, focusing on its external shape. In the second case, one descends to the microscopic level, studying molecular signalling pathways that are crucial to determine if a cell is cancerous or not. In each of these approaches we work with appropriate variants of membrane systems.</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue></record></records></xml>