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El promedio de edad de los primeros pacientes diagnosticados con COVID-19 en Brasil, de 39 años, fue más bajo que el registrado en otros países. Este factor, asociado al hecho de que, durante la fase inicial de la epidemia en Brasil, gran parte de esos pacientes pertenecía a las clases sociales más elevadas, puede haber contribuido para que el país haya registrado un índice de hospitalización equivalente a la mitad de la media [...]

HOUSTON – (Nov. 13, 2019) – A lightweight material full of holes is nearly as hard as diamond. The mere dents left by speeding bullets prove it. Researchers at Rice University’s Brown School of Engineering and their colleagues are testing polymers based on tubulanes, theoretical structures of crosslinked carbon nanotubes predicted to have extraordinary strength. The Rice lab of materials scientist Pulickel Ajayan found tubulanes can be mimicked as scaled-up, 3D-printed [...]

Created at the University of São Paulo’s Engineering School, the machine costs approximately 7% as much as a conventional ventilator and can be freely manufactured by companies that obtain approval from the national health surveillance authority A group of researchers at the University of São Paulo’s Engineering School (POLI-USP) in Brazil have developed a mechanical ventilator that costs only approximately 7% as much as a conventional ventilator. Called Inspire, it [...]

Shortly after the explosion in microcephaly cases caused by Zika virus in Brazil in 2015-16, several scientific studies were published with evidence that the pathogen is capable of crossing the human placenta, the organ that keeps the fetus connected to the mother's body during pregnancy. From then on, the states began following a protocol established by the National Ministry of Health requiring collection of placental samples to help diagnose the disease in women with symptoms during [...]

  The Atlantic Rainforest has been so savagely clearcut and burned over several centuries that only approximately 12% now remains. Nevertheless, it is still one of the planet's largest repositories of biodiversity, and counter to a process that appeared irreversible, forest cover in the biome has begun to recover in recent decades. To confirm this trend and understand the dynamics of forest fragment degradation and regeneration, a study conducted at the National Space Research (INPE) [...]

Created at the University of São Paulo’s Engineering School, the machine costs approximately 7% as much as a conventional ventilator and can be freely manufactured by companies that obtain approval from the national health surveillance authority A group of researchers at the University of São Paulo’s Engineering School (POLI-USP) in Brazil have developed a mechanical ventilator that costs only approximately 7% as much as a conventional ventilator. Called Inspire, it [...]