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Lifeboat Foundation News Blog (EUA)
Em 2021: 0 notícias
Desde 1995: 4 notícias
Researcher proposes universal mechanism for ejection of matter
Publicado em 03 setembro 2020
Black holes can expel a thousand times more matter than they capture. The mechanism that governs both ejection and capture is the accretion disk, a vast mass of gas and dust spiraling around the black hole at extremely high speeds. The disk is hot and emits light as well as other forms of electromagnetic radiation. Part of the orbiting matter is pulled toward the center and disappears behind the event horizon, the threshold beyond which neither matter nor light can escape. Another, much larger, [...]
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Researchers develop an optical fiber made of gel derived from marine algae
Publicado em 28 julho 2020An optical fiber made of agar has been produced at the University of Campinas (UNICAMP) in the state of São Paulo, Brazil. This device is edible, biocompatible and biodegradable. It can be used in vivo for body structure imaging, localized light delivery in phototherapy or optogenetics (e.g., stimulating neurons with light to study neural circuits in a living brain), and localized drug delivery. Another possible application is the detection of microorganisms in specific organs, in which [...]ver notícia -
Scientists Print Functional Human “Mini-Livers”
Publicado em 05 janeiro 2020A team of Brazilian researchers have succesfully bioprinted tiny organoids that perform all of the human liver’s functions, Brazilian news service Agência FAPESP reports — functions including building proteins, storing vitamins and secreting bile. The researchers had to cultivate and reprogram human stem cells, and then 3D print them in layers to form tissue. While the “mini-livers” perform the functions of a liver, they’re unfortunately [...]ver notícia -
Break in temporal symmetry produces molecules that can encode information
Publicado em 29 agosto 2019In a study published in Scientific Reports, a group of researchers affiliated with São Paulo State University (UNESP) in Brazil describes an important theoretical finding that may contribute to the development of quantum computing and spintronics (spin electronics), an emerging technology that uses electron spin or angular momentum rather than electron charge to build faster, more efficient devices. The study was supported by São Paulo Research Foundation— FAPESP. Its [...]ver notícia