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11 resultados carregados para "oxygen"
Webb reveals oxygen-rich dust and water surviving near Milky Way's central black hole
Webb reveals oxygen-rich dust and water surviving near Milky Way's central black hole
Using the NASA/ESA/CSA James Webb Space Telescope, an international team of astronomers has discovered that dust and water can form and survive surprisingly close to the supermassive black hole at the center of the Milky Way galaxy. The observations reveal that the evolved star I
Trapped gases in ancient rocks challenge global explanation for 2-billion-year-old carbon
Trapped gases in ancient rocks challenge global explanation for 2-billion-year-old carbon
Roughly 2.5–2 billion years ago, Earth's surface experienced the biggest chemical change in its history when oxygen became abundant in the atmosphere, eventually leading to the evolution of complex life forms such as plants and animals that emerged half a billion years ago.
Foto: renan skaf / Pexels
An ultramassive white dwarf half Earth's size may hold a rare oxygen-neon core
Astronomers have found evidence that one of the most massive white dwarfs known has an oxygen-neon core instead of the more common carbon-oxygen core. The finding is important because the composition of a white dwarf's core determines how it will evolve. A paper outlining this di
Foto: Joice Rivas / Pexels
New pulse oximeter adapts to skin color
For decades, pulse oximeters have been among medicine's most familiar instruments. Clip one onto a finger, and within seconds it reports how much oxygen is in your blood, a vital indicator of health.
Foto: Malcoln Oliveira / Pexels
Metal deposits reveal how ice ages reshaped oxygen levels across Earth's oceans
Earth's oceans repeatedly lost oxygen and produced metal deposits during the planet's deepest ice ages. An international team of researchers analyzed manganese and other chemical signatures preserved in more than 27,000 ancient seafloor samples collected from six continents.
Foto: Gustavo Fring / Pexels
How oxygen levels synchronize heart muscle and blood vessel development
During development, regional dips in oxygen levels serve as a signal that triggers the coordinated growth of heart muscle and coronary vessels, according to a study led by researchers at Weill Cornell Medicine. The findings, published online in the Proceedings of the National Aca
Blue Origin narrowing in on root cause of catastrophic rocket accident
Blue Origin narrowing in on root cause of catastrophic rocket accident
"The anomaly originated at the main oxygen valve on one of the BE-4 engines." O recorte ajuda a contextualizar a pauta dentro de IA.
Unexpected bond-breaking order reveals a new path to bioluminescence
Unexpected bond-breaking order reveals a new path to bioluminescence
The dancing lights of fireflies and the eerie blue sparkle in crashing waves get their glow when a molecular square of carbon and oxygen atoms breaks. New research from Stanford University has shown that mechanical force can cause that break to happen in a way different from what
Creating cleaner chemical reactions that run on oxygen and produce only water as waste
Creating cleaner chemical reactions that run on oxygen and produce only water as waste
Oxygen provides the driving force for many vital chemical reactions. Two well-known examples include respiration, the process that allows living things to break down food to release its energy, and combustion, reactions that produce heat and light. But oxygen has an unusual elect
Fim do OxygenOS: saiba se o seu OnePlus vai mudar para o ColorOS 17
Tecnologia
Fim do OxygenOS: saiba se o seu OnePlus vai mudar para o ColorOS 17
A OnePlus confirmou o fim da interface OxygenOS para Android, que será substituída pelo ColorOS 17, da Oppo. Isso significa que os celulares da marca ainda serão atualizados, mas usarão outra adaptação do sistema operacional. Em nota, a empresa explicou que os aparelhos continuarão recebendo suporte oficial, mas todos os modelos compatíveis com atualizações de software poderão migrar ao ColorOS. Não hav
Gigante chinesa pode acabar com duas interfaces do Android; entenda
Tecnologia
Gigante chinesa pode acabar com duas interfaces do Android; entenda
A OPPO pode estar prestes a encerrar duas das interfaces mais conhecidas do Android. Segundo informações publicadas pelo Smartprix, com base no relato de um informante da indústria considerado confiável pelo portal, a fabricante chinesa planeja descontinuar a OxygenOS, da OnePlus, e a Realme UI. A empresa pretende adotar o ColorOS como sistema padrão para os futuros smartphones das duas marcas em todos os mercados. A mudança faria parte de uma estratégia para reduzir a fragmentação e