Intempus wants to retrofit robots to be able to convey human expression to make them easier to understand and to deliver richer data.
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White holes are theoretical bodies in physics that are basically time-reversed black holes, meaning instead of permanently trapping matter inside themselves, they release it constantly. Recently, one team of physicists claimed that black holes can turn into white holes, another team says they know how to detect them, and yet another group claims that white holes make up dark matter. Has the time for white holes come?
Paper: https://arxiv.org/abs/2409.
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Fujikawa, R., Ramsaran, A.I., Guskjolen, A. et al. Neurogenesis-dependent remodeling of hippocampal circuits reduces PTSD-like behaviors in adult mice. Mol Psychiatry 29, 3316â3329 (2024). https://doi.org/10.1038/s41380-024-02585-7
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Like a scene out of a sci-fi movie, astronomers using NASA telescopes have found âSpace Jaws.â Lurking 600 million light-years away, within the inky black depths between stars, there is an invisible monster gulping down any wayward star that plummets toward it. The sneaky black hole betrayed its presence in a newly identified tidal disruption event (TDE) where a hapless star was ripped apart and swallowed in a spectacular burst of radiation.
These disruption events are powerful probes of black hole physics, revealing the conditions necessary for launching jets and winds when a black hole is in the midst of consuming a star, and are seen as bright objects by telescopes.
The new TDE, called AT2024tvd, allowed astronomers to pinpoint a wandering supermassive black hole using NASAâs Hubble Space Telescope, with similar supporting observations from NASAâs Chandra X-ray Observatory and the NRAO Very Large Array telescope that also showed that the black hole is offset from the center of the galaxy.
Founded by former Uber managers, the startup builds a general-purpose AI teammate for the workplace.
As researchers work to improve treatment of Alzheimerâs disease, new research by UCLA Health identified a candidate drug that reduces levels of a toxic form of a protein in the brain caused by the disease and improved memory in mice by boosting production of a protective protein.
In a study published in npj Drug Discovery, UCLA Health researchers targeted the protein clusterin (CLU), which is crucial in preventing the build-up of amyloid-beta plaques and tau proteins that disrupt communication between brain cells and lead to memory impairmentâa hallmark symptom of Alzheimerâs disease.
More than a decade ago, a variant of the gene that encodes clusterin was identified as the third strongest genetic risk factor for late-onset Alzheimerâs disease. It was recently reported that increased CLU protein could provide protection against Alzheimerâs disease and cognitive decline.
The chat bot earned a B, slightly below the class average. It excelled in practice problems and computing exercises but was unable to justify its work or simplify systems.
Human brains are great at sorting through a barrage of sensory informationâlike discerning the smell of tomato sauce upon stepping into a busy restaurantâbut artificial intelligence systems are challenged by large bursts of unregulated input.
Using the brain as a model, Cornell researchers from the Department of Psychologyâs Computational Physiology Lab and the Cornell University AI for Science Institute have developed a strategy for AI systems to process olfactory and other sensory data.
Human (and other mammalian) brains efficiently organize unruly input from the outside world into reliable representations that we can understand, remember and use to make long-lasting connections. With these brain mechanisms as a guide, the researchers are designing low-energy, efficient robotic systems inspired by biology and useful for a wide range of potential applications.
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