id: 05656547
dt: j
an: 05656547
au: Besozzi, Daniela; Busi, Nadia; Cazzaniga, Paolo; Ferretti, Claudio;
    Leporati, Alberto; Mauri, Giancarlo; Pescini, Dario; Zandron, Claudio
ti: (Tissue) P systems with cell polarity.
so: Math. Struct. Comput. Sci. 19, No. 6, 1141-1160 (2009).
py: 2009
pu: Cambridge University Press, Cambridge
la: EN
cc: 
ut: tissue P systems with cell polarity
ci: 
li: doi:10.1017/S0960129509990156
ab: Summary: We consider the structure of the intestinal epithelial tissue and
    of cell-cell junctions as the biological model inspiring a new class of
    P systems. First we define the concept of cell polarity, a formal
    property derived from epithelial cells, which present morphologically
    and functionally distinct regions of the plasma membrane. Then we show
    two preliminary results for this new model of computation: on the
    theoretical side, we show that P systems with cell polarity are
    computationally (Turing) complete; on the modelling side, we show that
    the transepithelial movement of glucose from the intestinal lumen into
    the blood can be described by such a formal system. Finally, we define
    tissue P systems with cell polarity, where each cell has fixed
    connections to the neighbouring cells and to the environment, according
    to both the cell polarity and specific cell-cell junctions.
rv: