1. UV ABSORPTION PROPERTIES OF DOPED PVA TiO2 MEMBRANES . Authors: SIMION SIMON, TRAIAN ŞTEFAN, MIHAELA POP, CORNEL VIOREL POP, LUCIANA UDRESCU, MIHAI TODICA.2. OBSERVATION OF UV-VIS ABSORPTION PROPERTIES OF SOME PVA MEMBRANES WITH SILVER NANOPARTICLES. Authors: MIHAI TODICA, TRAIAN ŞTEFAN, CORNEL VIOREL POP, MIHAELA POP, BOGDAN MARTA, LUCIANA UDRESCU.