6 papers
Bit-strings and other modifications of Viviane model for language competition
P. M. C. de Oliveira, D. Stauffer, F. W. S. Lima +3
The language competition model of Viviane de Oliveira et al is modified by associating with each language a string of 32 bits. Whenever a language changes in this Viviane model, al…
Simulating Male Selfish Strategy in Reproduction Dispute
P. M. C de Oliveira, S. Moss de Oliveira
We introduce into the Penna Model for biological ageing one of the possible male mechanisms used to maximize the ability of their sperm to compete with sperm from other males. Such…
Bit-String Models for Parasex
S. Moss de Oliveira, P. M. C. de Oliveira, D. Stauffer
We present different bit-string models of haploid asexual populations in which individuals may exchange part of their genome with other individuals (parasex) according to a given p…
Lattice Simulation of Nuclear Multifragmentation
J. S. Sa' Martins, P. M. C. de Oliveira
Motivated by the decade-long debate over the issue of criticality supposedly observed in nuclear multifragmentation, we propose a dynamical lattice model to simulate the phenomenon…
Monte Carlo Simulations of Sexual Reproduction
D. Stauffer, P. M. C. de Oliveira, S. M. Moss de Oliveira +1
Modifying the Redfield model of sexual reproduction and the Penna model of biological aging, we compare reproduction with and without recombination in age-structured populations. I…
THE SPIN-S BLUME-CAPEL RG FLOW DIAGRAM
S. Moss de Oliveira, P. M. C. de Oliveira, F. C. Sa Barreto
Using the Finite Size Scaling Renormalisation Group we obtain the two-dimensional flow diagram of the Blume-Capel model, for S = 1 and S = 3/2. In the first case our results are si…