reduced graphene oxide film was synthesized on a glassy carbon electrode by electro reduction of graphene oxide powders in aqueous solution. then platinum nano particles were deposited on reduced graphene oxide film that was deposited on the glassy carbon electrode via electro reduction of platinum salt. the physical morphology of the platinum on reduced graphene oxide film was evaluated by sca...

The electron affinity (EA) of the superheavy element Og is calculated by use relativistic Fock-space coupled cluster (FSCC) and configuration interaction methods. FSCC operator expansion includes single, double, triple excitations treated in a nonperturbative manner. Gaunt retardation electron-electron interactions are taken into account. Both methods yield results that agreement with each othe...

This study aims to determine the increase in motivation and learning outcomes of students on use pocketbooks. type research is a quasi-experiment which was carried out with nonequivalent control group design. The population this were class X SMA Negeri 3 Banda Aceh 66 samples selected by random sampling, data obtained through test questions, questionnaires. outcome analyzed using t test. It sho...