Veículo
Despojado y Caridad
Em 2024: 4 notícias
Desde 1995: 5 notícias
Metal in glitter impairs aquatic plant growth, study shows
Publicado em 26 fevereiro 2024
Glitter is used in a wide array of colors and shapes in apparel, footwear, cosmetics, makeup, handbags, festive decorations, arts and crafts, and jewelry, among many other applications. During the Carnival holidays, hundreds of thousands of Brazilians cover parts of their bodies with it while dancing in the streets.
Its brilliance is dazzling, but it is considered an emerging pollutant by many scientists: like other microplastics (small plastic pieces less than 5 mm long), it is not filtered [...]
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Study identifies priority areas for conservation of endangered crustacean in Brazil
Publicado em 18 janeiro 2024Mass migration takes place between December and April on Trindade Island, the easternmost point of Brazil located in the Atlantic about 1,200 km from the coastal city of Vitória, capital of Espírito Santo state. Hundreds of Johngarthia lagostoma land crabs descend steep rocky trails from the upland peaks to the shore, where they mate and release larvae into the ocean. The larvae develop into juveniles, which undertake an even more challenging journey back up to the heights in [...]ver notícia -
More than 80% of tree species endemic to the Atlantic Rainforest are threatened with extinction, finds study
Publicado em 17 janeiro 2024A study led by Brazilian researchers and reported in an article published on January 11 in the journal Science shows that 82% of the more than 2,000 species of trees found only in the Atlantic Rainforest biome are threatened with extinction to some degree, while 65% of all 4,950 tree species present in the biome, including non-endemics, are endangered. This is the first time the degree of threat to all populations of all tree species in Brazil’s Atlantic [...]ver notícia -
Diversity of bioluminescent beetles in Brazilian savanna has declined sharply in 30 years, finds study
Publicado em 02 janeiro 2024At night in the Cerrado, Brazil’s savanna and second-largest biome, larvae of the click beetle Pyrearinus termitilluminans, which live in termite mounds, display green lanterns to capture prey attracted by the bright light. In more than 30 years of expeditions with his students to Emas National Park and farms around the conservation unit in Goiás state to collect specimens, the phenomenon has never been so rare, said Vadim Viviani, a professor at the Federal University of [...]ver notícia -
Embedding nanodiamonds in polymer can advance quantum computing and biological studies
Publicado em 14 dezembro 2023A nitrogen vacancy (NV) center is a defect in the crystal structure of diamond, where a nitrogen atom replaces a carbon atom in the diamond lattice and an adjacent site in the lattice is vacant. These and other fluorescent defects in diamond, known as color centers, have attracted the attention of researchers because of their quantum properties, such as the emission of single photons at room temperature and with a long coherence time. Their many applications include the encoding and processing [...]ver notícia