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A study conducted at the Brazilian Center for Research in Energy and Materials (CNPEM) has discovered that three strains of Pseudomonas bacteria can inhibit growth, and even cause the death, of the fungus responsible for pineapple sett rot, a disease that attacks sugarcane, especially in the planting season. The results are reported in an article published in Environmental Microbiology, a journal of the United Kingdom’s Society for Applied Microbiology, and could serve as a basis for [...]

The researchers who detected the trend warn that crop yields could fall. Credit: Roosewelt Pinheiro/Agência Brasil Deforestation for agribusiness expansion in Brazil, in conjunction with climate change, has worsened the already severe drought suffered in the last decade by the transition zone between the eastern Amazon and the Cerrado, the vast tropical savanna ecoregion in central and western Brazil. This combination of trends endangers the stability of the biomes concerned and [...]

Um estudo científico realizado pela Unesp (Universidade Estadual Paulista) aponta que mesmo quadros leve a moderado de covid-19 pode provocar desequilíbrio no sistema cardiovascular de adultos jovens e sem doenças preexistentes. A pesquisa concluiu ainda que tanto a obesidade quanto o baixo nível de atividade física são fatores determinantes que ajudam a alterar o sistema nervoso autônomo, responsável por funções vitais do [...]

In 2019, not long before theunusual weather eventthat changed day into night in São Paulo City (Brazil), dozens of pigeons mysteriously dropped dead. Birds displaying wounds as well as neurological symptoms were found dead or dying near the municipal animal disease control center. multicenter research team discovered that the deaths were unrelated to the pollution blown into the city from forest fires in the Amazon, despite the proximity of the dates, but were in fact due to Newcastle [...]

Gracias a una combinación de algoritmos que permite identificar las denominadas noticias falsas Una plataforma creada por investigadores brasileños puede convertirse en una útil herramienta para combatir las noticias falsas gracias a una combinación de algoritmos que permite identificar las denominadas "fake news" con un 96 % de efectividad. Mediante una combinación de inteligencia artificial y modelos estadísticos, la plataforma es [...]

Na atual era de fake news tem sido cada vez mais desafiador distinguir notícias falsas ou falsificadas das reais. Uma plataforma web criada por pesquisadores ligados ao Centro de Ciências Matemáticas Aplicadas à Indústria (CeMEAI) pode facilitar essa tarefa. Por meio de uma combinação de modelos estatísticos e técnicas de aprendizado de máquina, a plataforma é capaz de predizer a probabilidade de um texto [...]

Pesquisadores da Universidade Federal de São Paulo (Unifesp) publicaram uma carta no Journal of Medical Virology na qual atestam a eficácia das vacinas contra a Covid-19 através de análise das mutações genéticas das cepas do coronavírus. Os cientistas afirmam que há apenas uma mutação genética exclusiva da Ômicron – as outras já haviam sido descritas anteriormente. Os cientistas atribuem [...]

 Electromagnetic (EM) waves and gravitational waves are the only available means to study the Universe on a large scale. For millennia, only the former could be used, in naked-eye astronomical observations by the ancients based on the reception of visible light, or present-day super telescopes operating in various bands of the EM spectrum, from radio waves to gamma rays. Gravitational effects can be inferred from the relative movements of celestial bodies. The first direct measurement [...]

Researchers at São Paulo State University (UNESP) in Brazil have studied a protein in sperm and discovered two new targets that can be used in combination to develop male contraceptives. The study also demonstrates the feasibility of using mice as a model for in vivo trials during the drug development process. Scientists interested in the protein have so far used primates in their experiments, making the trials more complex, time-consuming and costly. The focus for the project is [...]