Browsing Informática by Issue Date
Now showing items 21-40 of 497
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Presentation
P Systems with Active Membranes and Separation Rules
(Fénix Editora, 2004)The P systems are a class of distributed parallel computing devices of a biochemical type. In this paper, a new de¯nition ...
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Presentation
Simulating the Fredkin Gate with Energy-Based P Systems
(Fénix Editora, 2004)Reversibility plays a fundamental role when the possibility to per- form computations with minimal energy dissipation is ...
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Presentation
Weak Metrics on Configurations of a P System
(Fénix Editora, 2004)The evolution of a P system generates a tree of computation po- tentially in¯nite where it is very difficult to set the ...
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Presentation
A Java Simulator for Basic Transition P Systems
(Fénix Editora, 2004)In this paper, a software tool (called SimCM, from Spanish Sim- ulador de Computaci¶on con Membranas) for handling P ...
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Size and Power of Extended Gemmating P Pystems
(Fénix Editora, 2004)In P systems with gemmation of mobile membranes were ex- amined. It was shown that (extended) systems with eight membranes ...
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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 ...
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Presentation
Further Open Problems in Membrane Computing
(Fénix Editora, 2004)A series of open problems and research topics in membrane com- puting are pointed out, most of them suggested by recent ...
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Presentation
On P Systems with Promoters/Inhibitors
(Fénix Editora, 2004)This article shows how the computational universality can be reached by using P systems with object rewriting context-free ...
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An Efficient Cellular Solution for the Partition Problem
(Fénix Editora, 2004)Numerical problems are not very frequently addressed in the P sys- tems literature. In this paper we present an e®ective ...
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Presentation
Sequential P Systems with Unit Rules and Energy Assigned to Membranes
(Fénix Editora, 2004)We introduce a new variant of membrane systems where the rules are directly assigned to membranes (and not to the regions ...
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Presentation
Deductive Databases and P Systems
(Fénix Editora, 2004)In computational processes based on backwards chaining, a rule of the type A Ã B1; : : : ;Bn is seen as a procedure which ...
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About P Systems with Symport/Antiport
(Fénix Editora, 2004)It is proved that four membranes su±ce to P systems with minimal symport/antiport to generate all recursively enumerable ...
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Presentation
Membrane Operations in P Systems with Active Membranes
(Fénix Editora, 2004)In this paper we de¯ne a general class of P systems covering some biological operations with membranes, including evolution, ...
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Presentation
Solving the BINPACKING Problem by Recognizer P Systems with Active Membranes
(Fénix Editora, 2004)In this paper we present an e®ective solution to the BINPACKING problem using a family of recognizer P systems with active ...
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Presentation
(Ultimately Confluent) Parallel Multiset-Rewriting Systems with Context
(Fénix Editora, 2004)The aim of this paper is to study the power of parallel multiset- rewriting systems with permitting context (or P systems ...
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On the Power of Deterministic EC P Systems
(Fénix Editora, 2004)It is commonly believed that a signi¯cant part of the computational power of membrane systems comes from their inherent ...
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Presentation
Membrane Kauffman Networks
(Fénix Editora, 2004)A formalization of Kauffman Boolean Networks in terms of P systems is suggested along two lines: by means of register machines and directly by means of membranes with receptors.
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Presentation
Cell Communication in Tissue P Systems and Cell Division in Population P Systems
(Fénix Editora, 2004)Two classes of tissue P systems based on evolution communication rules are introduced, some results are proved, but many ...
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Presentation
Covering Rules in P Systems: Some Preliminary Ideas
(Fénix Editora, 2004)In this paper we propose a new kind of rules inside the regions of a P system. We have called them covering rules due to ...
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Presentation
Evolution-Communication P Systems: Time-Freeness
(Fénix Editora, 2005)Membrane computing is a (biologically motivated) theoretical framework of distributed parallel computing. If symbol-objects ...