amicor (24) 3053
#Dra. Valderês A. R. Achutti (*13/06/1931+15/06/2021)
MUHM 0 Museu da História da Me dicina SIMERS, 2.008Como estamos na semana do dia do Médico, uma homenagem a quem me seduziu para a medicina...
Da: Academia Sul-Riograndense de Medicina
O link para divulgação e acesso:
From: Quanta Magazine
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The Brain Processes Speech in Parallel with Other SoundsBy JORDANA CEPELEWICZ Scientists thought that the brain’s hearing centers might just process speech along with other sounds. But new work suggests that speech gets some special treatment very early on.
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 | A Hint of Dark Matter Sends Physicists Looking to the SkiesBy JONATHAN O'CALLAGHAN After a search of neutron stars finds preliminary evidence for hypothetical dark matter particles called axions, physicists are devising new ways to spot them.
Read the blog
Related:
Dark Matter Experiment
Finds Unexplained Signal
by Natalie Wolchover (2020) |
 | Neuron Bursts Can Mimic Famous AI Learning StrategyBy ALLISON WHITTEN A new model of learning centers on bursts of neural activity that act as teaching signals — approximating backpropagation, the algorithm behind learning in AI.
Read the blog
Related:
Deep Neural Networks Help
to Explain Living Brains
by Anil Ananthaswamy (2020) |
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The Uselessness of Useful KnowledgeBy ROBBERT DIJKGRAAF Today’s powerful but little-understood artificial intelligence breakthroughs echo past examples of unexpected scientific progress.
Read the column
Related:
Contemplating the End of Physics
by Robbert Dijkgraaf (2020) |
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They've Had Their 15 Minutes
Physicists have measured the average lifetime of neutrons floating in a bottle to be 14 minutes 37.75 seconds, Davide Castelvecchi reports for Nature. Mysteriously, that’s about 10 seconds shorter than for neutrons flying freely in a beam formation. One attempt to explain the discrepancy suggests that neutrons can decay into dark matter particles, but experiments have failed to prove it, as Natalie Wolchover reported for Quanta in 2018.
Limber Learning
When digital robots are allowed to mutate and evolve new bodies, the fittest survivors are the ones fastest at picking up unfamiliar tasks, Will Douglas Heaven reports for MIT Tech Review. Evolution could offer the fastest path to algorithms that can solve different problems, Matthew Hutson reported for Quanta in 2019. After all, that’s where human intelligence came from. |
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From: Nature
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Artificial intelligence is, in its current phase, something like alchemy — and that’s not necessarily such a bad thing, argues theoretical physicist Robbert Dijkgraaf. He considers whether the field is “based on a collection of tricks, topped with a good dash of optimism, rather than systematic analysis” and whether code is assembled “with the same wishful thinking and misunderstanding that the ancient alchemists had when mixing their magic potions”. If alchemy was a useful precursor to modern chemistry, what wonders might artificial intelligence eventually lead to? Quanta | 5 min read
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From: AEON
Cognition and intelligence
On the origin of minds
Cognition did not appear out of nowhere in ‘higher’ animals but goes back millions, perhaps billions, of years
Pamela Lyon
#Do Canaltech
Nosso planeta não experimenta apenas oscilação nos polos magnéticos, mas há evidências de que os polos geográficos também foram alterados ao longo das eras. Isso mesmo: o globo terrestre, por algum motivo, girou em um ângulo de 12 graus, só para mais tarde voltar, somando um total de 25 graus de inclinação ao longo de 5 milhões de anos. Ao menos é o que indica um novo estudo, que usou fósseis de bactérias para a descoberta. #Do: Centro Cultural e Histórico da Santa Casa
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