Dein Suchergebnis zum Thema: Black Lives Matter

Determining age from brain scans

https://www.mpg.de/19260712/determining-age-from-brain-scans

The biological age of a person can be accurately determined from brain images using the latest AI technology, so-called artificial neural networks. Until now, however, it was unclear which features these networks used to infer age. Researchers at the Max Planck Institute for Human Cognitive and Brain Sciences have now developed an algorithm that reveals: Age estimation goes back to a whole range of features in the brain, providing general information about a person’s state of health. The algorithm could thus help to detect tumours or Alzheimer’s disease more quickly and allows conclusions to be drawn about the neurological consequences of diseases such as diabetes.
Deep neural networks are an AI technology that is already enriching our everyday lives

Betelgeuse – a giant with blemishes

https://www.mpg.de/15029676/0625-astr-053792-betelgeuse-a-giant-with-blemishes

Betelgeuse, the bright star in the constellation of Orion, has been fascinating astronomers in the recent months because of its unusually strong decline in brightness. Scientists have been discussing a number of scenarios trying to explain its behaviour. Now a team led by Thavisha Dharmawardena of the Max Planck Institute for Astronomy have shown that most likely unusually large star spots on the surface of Betelgeuse have caused the dimming.
“Towards the end of their lives, stars become red giants,” Dharmawardena explains

Debris of stellar explosion found at unusual location

https://www.mpg.de/16527751/0302-ext0-giant-cloud-found-at-unusual-location-151510-x

In the first all-sky survey by the eROSITA X-ray telescope onboard SRG, astronomers at the Max Planck Institute for Extraterrestrial Physics have identified a previously unknown supernova remnant, dubbed “Hoinga”. The finding was confirmed in archival radio data and marks the first discovery of a joint Australian-eROSITA partnership established to explore our Galaxy using multiple wavelengths, from low-frequency radio waves to energetic X-rays. The Hoinga supernova remnant is very large and located far from the galactic plane – a surprising first finding – implying that the next years might bring many more discoveries.
Hurley-Walker, ICRAR-Curtin (Radio) Massive stars end their lives in gigantic supernova

A puzzle piece from stellar chemistry could change our measurements of cosmic expansion

https://www.mpg.de/14535346/a-puzzle-piece-from-stellar-chemistry-could-change-our-measurements-of-cosmic-expansion

Astronomers led by Maria Bergemann (Max-Planck-Institute for Astronomy) have performed chemical measurements on stars that could markedly change the way cosmologists measure the Hubble constant and determine the amount of so-called dark energy in our universe. Using improved models of how the presence of chemical elements affects a star’s spectrum, the researchers found that so-called supernovae Type Ia have different properties than previously thought. Based on assumption about their brightness, cosmologists have used those supernovae to measure the expansion history of the universe. In light of the new results, it is now likely those assumptions will need to be revised.
produced in the violent supernova explosions marking the end of certain stars’ lives