Hello everyone, I am a Ph-D student having started the doctoral thesis, in the inorganic departament of the "Universidad de Cádiz" (Spain). I enroled on the SDPD internet course of the "Université du Maine". Best regards Ana María Cordón Rodríguez Universidad de Cadiz, Dpto. de Ciencias de Materiales e Ingenieria Metalurgica y Quimica Inorganica Polígono Río San Pedro 11510 Puerto Real, Cadiz 956 01 6334