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On the aging dynamics in an immune network model

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Abstract.

Recently we have used a cellular automata model which describes the dynamics of a multi-connected network to reproduce the refractory behavior and aging effects obtained in immunization experiments performed with mice when subjected to multiple perturbations. In this paper we investigate the similarities between the aging dynamics observed in this multi-connected network and the one observed in glassy systems, by using the usual tools applied to analyze the latter. An interesting feature we show here, is that the model reproduces the biological aspects observed in the experiments during the long transient time it takes to reach the stationary state. Depending on the initial conditions, and without any perturbation, the system may reach one of a family of long-period attractors. The perturbations may drive the system from its natural attractor to other attractors of the same family. We discuss the different roles played by the small random perturbations ("noise") and by the large periodic perturbations ("immunizations").

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Authors and Affiliations

  1. Laboratório de Física Teórica e Computacional, Departamento de Física, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil

    M. Copelli & R. M. Zorzenon dos Santos

  2. Instituto de Física, Universidade Federal do Rio Grande do Sul, CP 15051, 91501-970, Porto Alegre, RS, Brazil

    D. A. Stariolo

Authors
  1. M. Copelli
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  2. R. M. Zorzenon dos Santos
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  3. D. A. Stariolo
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Corresponding author

Correspondence to M. Copelli.

Additional information

Received: 7 May 2003, Published online: 23 July 2003

PACS:

87.18.Hf Spatiotemporal pattern formation in cellular populations - 87.10.+e General theory and mathematical aspects - 61.43.Fs Glasses

D.A. Stariolo: Research Associate of the Abdus Salam International Center for Theoretical Physics, Strada Costiera 11, Trieste, Italy

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Copelli, M., Zorzenon dos Santos, R.M. & Stariolo, D.A. On the aging dynamics in an immune network model. Eur. Phys. J. B 34, 119–129 (2003). https://doi.org/10.1140/epjb/e2003-00203-7

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  • DOI: https://doi.org/10.1140/epjb/e2003-00203-7

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