1. RAMAN IMAGING INVESTIGATION ON PAA-CLOTRIMAZOLE SYSTEM. Authors: MIHAI TODICA, SIMION AŞTILEAN, TRAIAN ŞTEFAN, CORNEL-VIOREL POP.2. 13C NMR STUDY OF GAMMA IRRADIATED POLYSTYRENE. Authors: RADU FECHETE, LIVIU DĂRĂBAN, TRAIAN ŞTEFAN, MIHAELA POPA.3. UV ABSORPTION PROPERTIES OF DOPED PVA TiO2 MEMBRANES . Authors: SIMION SIMON, TRAIAN ŞTEFAN, MIHAELA POP, CORNEL VIOREL POP, LUCIANA UDRESCU, MIHAI TODICA.4. 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.