1. POWER PLANTS ASHES RECOVERY IN ECO-FRIENDLY MORTAR COMPOSITIONS. Authors: GOG ADRIANA, ROMAN MARIUS, ROMAN CECILIA, GAGEA LUCIA, TÓTH ANIKÓ, VALENTINA CETEAN, LÁSZLÓ SZÉLL.2. BIODIESEL PRODUCTION FROM SUNFLOWER OIL WITH CANDIDA ANTARCTICA LIPASE B. Authors: GOG ADRIANA, MIRCEA CHINTOANU, MARIUS ROMAN, EMIL LUCA, CSABA PAIZS, FLORIN-DAN IRIMIE.