(3) Department of Biology and Environment, School of Life Science and Environment,
UTAD, Vila Real, Portugal
(2) Agronomy Department, Universidade de Tras-os-Montes e Alto Douro (
UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal
Licenciado en Derecho, maestro en Administracion de la Educacion y Doctor en Ciencias de la Educacion por la Universidad de santiago de Compostela, con agregacion en Ciencias de la Educacion en la Universidade de Tras-os-montes e Alto Douro (
UTAD), es profesor adjunto en la Escola superior de Educacao do Instituto Politecnico do Porto.
Department of Economics, Sociology and Management (DESG), Centre for Transdisciplinary Development Studies (CETRAD), University of Tras-os-Montes and Alto Douro (
UTAD), Escola de Ciencias Humanas e Sociais - Polo II, Vila Real 5000-801, Portugal.
Universidade de Tras-os-Montes, Alto Douro e Vila Real, 11, 69-92, Vila Real: Sector Editorial Servidos Graficos da
UTAD.
We also thank to Education Secretariat of Minas Gerais (SEE-MG) for the permission to THT attending the doctoral course at UFMG, to CNPq for PhD scholarship in Brazil, to CAPES for Sandwich PhD scholarship and to CITAB-
UTAD to receive the first author during 10 months.
([double dagger]) Department of Mathematics, University of Tras-os-Montes e Alto Douro,
UTAD, Quinta de Prados 5001- 801, Vila Real, Portugal (luisam@utad.pt).