ŢICU, DORINA, Post-PhD Fellow SOP HRD/159/1.5/133675 Project, Romanian Academy Iași Branch, ticudorina@yahoo.com, 0744262978. Aknowledgement: This paper is supported by the Sector Operational Programme Human Resources Development (SOP HRD), financed from the European Social Fund and by the Romanian Government under the contract number POSDRU/159/1.5/133675., Romania