[EN] A spatio-temporal response model of brain activity is presented in this paper. The model is a non-autonomous reaction-diffusion model, i.e., a non-autonomous parabolic partial differential equation. The model is deduced ...

This paper presents a new well-being index which allows environmental quality to be measured through CO2 emissions, renewable energies and nuclear power. Its formula derives from a geometric mean used to calculate which ...

A model for a general human population dynamics is presented to approach the demographic stability problem. The main model variables are demographic variables per sexes (births, deaths, emigration, immigration and population) ...