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Computing with liquid crystal fingers: Models of geometric and logical computation (2011)
Journal Article
Younger, D., Matranga, M. A., Costello, B. D. L., Kitson, S., Adamatzky, A., & de Lacy Costello, B. (2011). Computing with liquid crystal fingers: Models of geometric and logical computation. Physical Review E, 84(6), https://doi.org/10.1103/PhysRevE.84.061702

When a voltage is applied across a thin layer of cholesteric liquid crystal, fingers of cholesteric alignment can form and propagate in the layer. In computer simulation, based on experimental laboratory results, we demonstrate that these cholesteric... Read More about Computing with liquid crystal fingers: Models of geometric and logical computation.

Biology and computing (2011)
Presentation / Conference
Gale, E. (2011, November). Biology and computing. Presented at Faculty Research Colloquium

Memristors, the recently discovered 4th fundamental circuit element, have been used as models for biological components, such as neurons. It may be that neurons are memristors, rather than just conveniently modeled by them. This presentation covers r... Read More about Biology and computing.

On computing in fine-grained compartmentalised Belousov-Zhabotinsky medium (2011)
Journal Article
Adamatzky, A., Holley, J., Bull, L., & De Lacy Costello, B. (2011). On computing in fine-grained compartmentalised Belousov-Zhabotinsky medium. Chaos, Solitons and Fractals, 44(10), 779-790. https://doi.org/10.1016/j.chaos.2011.03.010

We introduce results of computer experiments on information processing in a hexagonal array of vesicles filled with Belousov-Zhabotinsky (BZ) solution in a sub-excitable mode. We represent values of Boolean variables by excitation wave-fragments and... Read More about On computing in fine-grained compartmentalised Belousov-Zhabotinsky medium.

Problemáticas en las búsquedas de información por internet con fines académicos / Issues searching Internet information for academic purposes (2011)
Presentation / Conference
Sánchez Moreno, A. D. L. P., & Martinez, G. J. (2011, September). Problemáticas en las búsquedas de información por internet con fines académicos / Issues searching Internet information for academic purposes. Paper presented at I Congreso Internacional De Educación Universitaria Y Prácticas Educativas Innovadoras

En el presente artículo se analizan parte de las problemáticas que existen cuando se realizan búsquedas de fuentes de información en internet con fines escolares y académicos; particularmente, nos enfocamos a las dificultades que presentan los estud... Read More about Problemáticas en las búsquedas de información por internet con fines académicos / Issues searching Internet information for academic purposes.

Towards a mapping of modern AIS and LCS (2011)
Journal Article
Bull, L. (2011). Towards a mapping of modern AIS and LCS. Lecture Notes in Artificial Intelligence, 6825 LNCS, 371-382. https://doi.org/10.1007/978-3-642-22371-6_32

For many years correlations between aspects of Artificial Immune Systems (AIS) and Learning Classifier Systems (LCS) have been highlighted. However, neither field appears to have benefitted from such work not least since the differences between the t... Read More about Towards a mapping of modern AIS and LCS.

Vesicle computers: Approximating a Voronoi diagram using Voronoi automata (2011)
Journal Article
Adamatzky, A., De Lacy Costello, B., Holley, J., Gorecki, J., & Bull, L. (2011). Vesicle computers: Approximating a Voronoi diagram using Voronoi automata. Chaos, Solitons and Fractals, 44(7), 480-489. https://doi.org/10.1016/j.chaos.2011.01.016

Irregular arrangements of vesicles filled with excitable and precipitating chemical systems are imitated by Voronoi automata - finite-state machines defined on a planar Voronoi diagram. Every Voronoi cell takes four states: resting, excited, refracto... Read More about Vesicle computers: Approximating a Voronoi diagram using Voronoi automata.

Aluminium electrodes effect the operation of titanium oxide sol-gel memristors (2011)
Working Paper
Gale, E., Pearson, D., Kitson, S., Adamatzky, A., & de Lacy Costello, B. Aluminium electrodes effect the operation of titanium oxide sol-gel memristors

By a comparison between memristors made with aluminium and gold electrodes, this letter demonstrates that aluminium electrodes are an essential component of the TiO$_2$ sol-gel flexible memristor . Both slow varying `analogue' and sudden switching `d... Read More about Aluminium electrodes effect the operation of titanium oxide sol-gel memristors.

Evolving spiking networks with variable memristors (2011)
Presentation / Conference
Howard, G. D., Gale, E., Bull, L., de Lacy Costello, B., & Adamatzky, A. (2011, June). Evolving spiking networks with variable memristors. Paper presented at 13th annual conference on Genetic and evolutionary computation

Arithmetic dynamical genetic programming in the XCSF learning classifier system (2011)
Presentation / Conference
Preen, R., & Bull, L. (2011, June). Arithmetic dynamical genetic programming in the XCSF learning classifier system. Paper presented at IEEE Congress on Evolutionary Computation (CEC), 2011

This paper presents results from an investigation into using a continuous-valued dynamical system representation within the XCSF Learning Classifier System. In particular, dynamical arithmetic genetic networks are used to represent the traditional... Read More about Arithmetic dynamical genetic programming in the XCSF learning classifier system.

Sounds synthesis with slime mould of Physarum Polycephalum (2011)
Journal Article
Miranda, E. R., Miranda, E., Adamatzky, A., & Jones, J. (2011). Sounds synthesis with slime mould of Physarum Polycephalum. Journal of Bionic Engineering, 8(2), 107-113. https://doi.org/10.1016/S1672-6529%2811%2960016-4

This paper introduces a novel application of bionic engineering: a bionic musical instrument using Physarum polycephalum. Physarum polycephalum is a huge single cell with thousands of nuclei, which behaves like a giant amoeba. During its foraging beh... Read More about Sounds synthesis with slime mould of Physarum Polycephalum.

On electrical correlates of physarum polycephalum spatial activity: Can we see physarum machine in the dark? (2011)
Journal Article
Adamatzky, A., & Jones, J. (2011). On electrical correlates of physarum polycephalum spatial activity: Can we see physarum machine in the dark?. Biophysical Reviews and Letters, 6(1-2), 29-57. https://doi.org/10.1142/S1793048011001257

Plasmodium of Physarum polycephalum is a single cell visible by unaided eye, which spans sources of nutrients with its protoplasmic network. In a very simple experimental setup we recorded electric potential of the propagating plasmodium. We discover... Read More about On electrical correlates of physarum polycephalum spatial activity: Can we see physarum machine in the dark?.

On attraction of slime mould Physarum polycephalum to plants with sedative properties (2011)
Journal Article
Adamatzky, A. (2011). On attraction of slime mould Physarum polycephalum to plants with sedative properties. https://doi.org/10.1038/npre.2011.5985.1

A plasmodium of acellular slime mould Physarum polycephalum is a large single cell with many nuclei. Presented to a configuration of attracting and repelling stimuli a plasmodium optimizes its growth pattern and spans the attractants, while avoiding... Read More about On attraction of slime mould Physarum polycephalum to plants with sedative properties.

Towards evolving spiking networks with memristive synapses (2011)
Presentation / Conference
Howard, G. D., Gale, E., Bull, L., de Lacy Costello, B., & Adamatzky, A. (2011, April). Towards evolving spiking networks with memristive synapses. Paper presented at IEEE Symposium on Artificial Life (ALIFE), 2011

This paper presents a spiking neuro-evolutionary system which implements memristors as neuromodulatory connections, ie whose weights can vary during a trial. The evolutionary design process exploits parameter self-adaptation and a constructionist app... Read More about Towards evolving spiking networks with memristive synapses.

Cellular automaton supercolliders (2011)
Journal Article
Martínez, G. J., Adamatzky, A., Stephens, C. R., & Hoeflich, A. F. (2011). Cellular automaton supercolliders. International Journal of Modern Physics C, 22(4), 419-439. https://doi.org/10.1142/S0129183111016348

Gliders in one-dimensional cellular automata are compact groups of non-quiescent and non-ether patterns (ether represents a periodic background) translating along automaton lattice. They are cellular automaton analogous of localizations or quasi-loca... Read More about Cellular automaton supercolliders.

Applications of Kauffman’s coevolutionary NKCS model to management and organization studies (2011)
Book Chapter
Vidgen, R., & Bull, L. (2011). Applications of Kauffman’s coevolutionary NKCS model to management and organization studies. In P. Allen, S. Maguire, & B. McKelvey (Eds.), The Sage Handbook of Complexity and Management, 201-219. SAGE Publications Limited

A number of studies have used tuneable, abstract models of organism evolution like Kauffman's (1993) NK model to capture and explore aspects of organizations and their adaptation in the business environment (eg Levinthal, 1997; Rivkin, 2000; Lenox... Read More about Applications of Kauffman’s coevolutionary NKCS model to management and organization studies.

Computational modalities of Belousov-Zhabotinsky encapsulated vesicles (2011)
Journal Article
Holley, J., Adamatzky, A., Bull, L., De Lacy Costello, B., & Jahan, I. (2011). Computational modalities of Belousov-Zhabotinsky encapsulated vesicles. Nano Communication Networks, 2(1), 50-61. https://doi.org/10.1016/j.nancom.2011.02.002

We present both simulated and partial empirical evidences for the computational utility of many connected vesicle analogues of an encapsulated nonlinear chemical processing medium. By connecting small vesicles containing a solution of sub-excitable B... Read More about Computational modalities of Belousov-Zhabotinsky encapsulated vesicles.

On the internalisation, intraplasmodial carriage and excretion of metallic nanoparticles in the slime mould, Physarum polycephalum (2011)
Journal Article
Mayne, R., Patton, D., Costello, B. D. L., Adamatzky, A., & Patton, R. C. (2011). On the internalisation, intraplasmodial carriage and excretion of metallic nanoparticles in the slime mould, Physarum polycephalum. International Journal of Nanotechnology and Molecular Computation, 3(3), 1-14. https://doi.org/10.4018/ijnmc.2011070101

The plasmodium of Physarum polycephalum is a large single cell visible with the naked eye. When inoculated on a substrate with attractants and repellents the plasmodium develops optimal networks of protoplasmic tubes which span sites of attractants (... Read More about On the internalisation, intraplasmodial carriage and excretion of metallic nanoparticles in the slime mould, Physarum polycephalum.