Amazement and horror in nineteenth-century Rio por Suzel Tunes
New techniques for determining soil identities por Carlos Fioravanti
Half of all tuberculosis patients spend more than 20% of their annual family income on treatment por Felipe Floresti
Study reduces uncertainty about excess magnetism in muons por Marcos Pivetta
The injured paw of a saber-toothed tiger por Gilberto Stam
Digital map reveals rock art in São Paulo por Letícia Naísa