The past dangers of receiving blood por Felipe Floresti
Extinct rivers of the Northeast por Carlos Fioravanti
Elderly capuchin monkeys have lesions typical of Alzheimer's disease por Giselle Soares
Hydrogel pellets remove water from biodiesel por Felipe Floresti and Carlos Fioravanti
Scientists develop serum for Africanized bee venom por Suzel Tunes
How sponge cities can help prevent flooding por Frances Jones
