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Ponencia
P Systems with Active Membranes and Two Polarizations
(Fénix Editora, 2004)
P systems with active membranes using only two electrical charges and only rules of types (a) and (c) assigned to at most two membranes are shown to be computationally complete { thus improving the previous result of ...
Ponencia
Tissue-like P Systems with Channel-States
(Fénix Editora, 2004)
We consider tissue-like P systems with states associated with the links (we call them synapses) between cells, controlling the passage of objects across the links. We investigate the computing power of such devices for ...