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Analysis of occurrence and co-occurrence patterns shows the highest-risk clusters of chikungunya and Zika in Brazil spreading from the Northeast to the Center-West and coastal areas of São Paulo state and Rio de Janeiro state in the Southeast between 2018 and 2021 and increasing again in the Northeast between 2019 and 2021. In Brazil overall, spatial variations in the temporal trends for chikungunya and Zika decreased by 13% and 40%, respectively, but 85% and 57% of the clusters in [...]

A 30-minute walk at moderate intensity temporarily reduced blood pressure in women with rheumatoid arthritis, not only at rest but also under stress. This was the conclusion drawn from a study involving physical and cognitive tests conducted at the University of São Paulo (USP) in Brazil. Rheumatoid arthritis is an autoimmune inflammatory disease affecting synovial joints and causing pain, swelling, and progressive physical incapacity. People with rheumatoid arthritis also tend to [...]

The study finds that two-thirds of trees in a critical biodiversity hotspot are threatened, suggesting the risk to trees worldwide is grossly underestimated The world's trees may also be one of its most threatened organisms, according to a new study published Thursday in the journal Science. It finds that many more tropical tree species are in danger of going extinct far sooner than previously thought. The results add to the evidence for a growing, global biodiversity crisis as the [...]

Brazilian researchers have discovered two new peptides in snake venom that possess significant potential to treat high blood pressure. The peptides were found in the venom of two snake species native to Brazil. In two recently published studies, experts analyzed the venom of the lancehead pit viper Cotiara (Bothrops cotiara) and the South American bushmaster (Lachesis muta). Untapped potential The research highlights the untapped potential of venoms, as well as the biotechnological [...]

Brazilian snake and spider venoms continue to be a source of new discoveries with biotechnological potential. Two recently published studies show how this is possible even in relatively well-studied species such as the lancehead pit viper Cotiara (Bothrops cotiara) and the South American bushmaster (Lachesis muta). "Venoms never cease to surprise us. Even with so much accumulated knowledge, fresh discoveries are possible, such as unpredictable fragments that are parts of known proteins. [...]

Entanglement is a property of quantum physics that is manifested when two or more systems interact in such a way that their quantum states cannot be described independently. In the terminology of quantum physics, they are said to be entangled, i.e. strongly correlated. Entanglement is of paramount importance to quantum computing. The greater the entanglement, the more optimized and efficient the quantum computer. A study conducted by researchers affiliated with the Department of Physics at [...]

Pesquisadores da USP (Universidade de São Paulo) e da Unicamp (Universidade Estadual de Campinas) desenvolvem dispositivo que pode dispensar o uso de anticoagulantes em pacientes cardíacos, a válvula aórtica de Wheatley. A pesquisa, desenvolvida no Cemeai (Centro de Ciências Matemáticas Aplicadas à Indústria), consiste na modelagem computacional de um mecanismo que substitui a válvula aórtica natural em pacientes com casos [...]

Entre os tecidos do corpo humano com maior capacidade de regeneração natural depois de um trauma ou intervenção cirúrgica, os ossos requerem, na maior parte das vezes, cuidados simples para se consolidar e voltar à sua função normal. Basta um período de imobilização por meio de gesso, por exemplo. Para os casos em que a extensão do defeito ultrapassa a capacidade de reparação, são [...]

Na última quarta-feira (13), a iniciativa Amazônia+10, dedicada ao fomento à pesquisa na Amazônia Legal, revelou parcerias estratégicas com o UK Research and Innovation e o British Council, ambos do Reino Unido, totalizando aproximadamente R$ 30 milhões em aportes financeiros. O anúncio ocorreu durante a cerimônia de abertura do Fórum Nacional do Confap (Conselho Nacional das Fundações Estaduais de Amparo à [...]