About: In this work we study a simple compartmental model for drinking behavior evolution. The population is divided in 3 compartments regarding their alcohol consumption, namely Susceptible individuals S (nonconsumers), Moderated drinkers M and Risk drinkers R. The transitions among those states are rules by probabilities. Despite the simplicity of the model, we observed the occurrence of two distinct nonequilibrium phase transitions to absorbing states. One of these states is composed only by Susceptible individuals S, with no drinkers ($M=R=0$). On the other hand, the other absorbing state is composed only by Risk drinkers R ($S=M=0$). Between these two steady states, we have the coexistence of the three subpopulations S, M and R. Comparison with abusive alcohol consumption data for Brazil shows a good agreement between the model's results and the database.   Goto Sponge  NotDistinct  Permalink

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  • In this work we study a simple compartmental model for drinking behavior evolution. The population is divided in 3 compartments regarding their alcohol consumption, namely Susceptible individuals S (nonconsumers), Moderated drinkers M and Risk drinkers R. The transitions among those states are rules by probabilities. Despite the simplicity of the model, we observed the occurrence of two distinct nonequilibrium phase transitions to absorbing states. One of these states is composed only by Susceptible individuals S, with no drinkers ($M=R=0$). On the other hand, the other absorbing state is composed only by Risk drinkers R ($S=M=0$). Between these two steady states, we have the coexistence of the three subpopulations S, M and R. Comparison with abusive alcohol consumption data for Brazil shows a good agreement between the model's results and the database.
Subject
  • Brazil
  • BRICS nations
  • Member states of Mercosur
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