Only four Brazilian cities have completed urban noise maps por Christina Queiroz
How sponge cities can help prevent flooding por Frances Jones
Researchers and students help improve Wikipedia entries por Sarah Schmidt
Hydrogel pellets remove water from biodiesel por Felipe Floresti and Carlos Fioravanti
Scientists develop serum for Africanized bee venom por Suzel Tunes
Egg white increases adhesion of graphene to cotton threads por Felipe Floresti
