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כתבות אחרונות מאתר 'Phys'
Phys

The genomic journey of modern and archaic humans may be older than we thought‎

Research conducted at the Department of Biology, University of Padova, has identified critical genomic milestones in the evolution of Homo sapiens, including key chromosomal rearrangements and specific gene variants that contributed to the development of current modern human traits.

17:16
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Phys

Introducing perceptein, a protein-based artificial neural network in living cells‎

Westlake University in China and the California Institute of Technology have designed a protein-based system inside living cells that can process multiple signals and make decisions based on them.

17:16
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Phys

Saturday Citations: Chicxulub meteorite found guilty; Good news and bad news for LLMs‎

It's the last week before Christmas and not a creature is stirring, not even a mouse model bred to exhibit characteristics of ADHD for in vivo studies of central nervous system stimulants. This week, we reported on the discovery of the world's oldest-known mammalian ancestor; the surveying of 1,300 burial mounds in western Azerbaijan; and a quasiparticle present in all magnetic materials. Additionally, researchers have shut down another alternate theory about the end of the dinosaurs; LLMs are becoming more brain-like, according to one study, but another one suggests that they exhibit signs of cognitive decline:

17:16
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Phys

Archaeological study documents rare Christian tattoo in medieval Nubia‎

Recently, a team of researchers published their study on a medieval Nubian tattoo in Antiquity. The researchers conducted a post-excavation analysis on individuals who had been interred at the Ghazali Monastery Cemetery (Sudan). One of these individuals was found to have a tattoo, making him only the second ever identified case of a tattooed medieval Nubian.

15:45
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Phys

Scientists observe 'negative time' in quantum experiments‎

Scientists have long known that light can sometimes appear to exit a material before entering it—an effect dismissed as an illusion caused by how waves are distorted by matter.

15:45
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Phys

Lab work digs into gullies seen on giant asteroid Vesta by NASA's Dawn‎

Pocked with craters, the surfaces of many celestial bodies in our solar system provide clear evidence of a 4.6-billion-year battering by meteoroids and other space debris. But on some worlds, including the giant asteroid Vesta that NASA's Dawn mission explored, the surfaces also contain deep channels, or gullies, whose origins are not fully understood.

12:49
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