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Jul 21, 2023

A ‘toolbox of biocatalysts’ improves control over free radicals

Posted by in category: chemistry

One of the central challenges for synthetic chemists is to impose control over free radicals. Highly reactive molecules with an unpaired electron, free radicals, may be familiar to you; these are the type of molecules we take antioxidant supplements for, in an effort to tame oxidative stress.

In the world of synthetic , however, hold a lot of promise.

“Free chemistry is very useful for the synthesis of both bioactive small molecules and everyday polymers,” said UC Santa Barbara chemistry professor Yang Yang, an author of a paper on the matter that appears in Nature Catalysis. “However, imposing stereocontrol over free-radical mediated reactions has eluded the asymmetric catalysis community for decades. We’re trying to develop biocatalytic strategies to further push the boundaries of free radical chemistry.”

Jul 21, 2023

Cerebras Systems signs $100 million AI supercomputer deal with UAE’s G42

Posted by in categories: robotics/AI, space, supercomputing

July 20 (Reuters) — Cerebras Systems on Thursday said that it has signed an approximately $100 million deal to deliver the first of what could be up to nine artificial intelligence (AI) supercomputers in a partnership with United Arab Emirates-based technology group G42.

The deal comes as cloud computing providers around the world are searching for alternatives to chips from Nvidia Corp (NVDA.O), the market leader in AI computing whose products are in short supply, thanks to the surging popularity of ChatGPT and other services. Cerebras is one of several startups looking to challenge Nvidia.

Silicon Valley-based Cerebras said that G42 has agreed to purchase three of what it calls its Condor Galaxy systems, all of which it will build in the U.S. to speed up the roll out. The first one will come online this year, with two more coming in early 2024.

Jul 21, 2023

Tell-tale protein fragment discovered in Alzheimer’s patients could be basis for blood test

Posted by in categories: biotech/medical, neuroscience

A protein fragment from the brain could be used to track progression of Alzheimer’s disease. The tell-tale fragment of tau protein was detectable in the cerebrospinal fluid (CSF) of patients with the disease, and researchers now hope to develop a blood test using it.

Alzheimer’s is a disease of errant protein aggregates that include amyloid plaques and then later tau tangles. ‘Amyloid plaques begin to form about 10 to 20 years before the first symptoms of Alzheimer’s,’ says Randall Bateman, a neurologist at Washington University School of Medicine who helped lead the study. ‘Whereas tau tangles begin once the symptoms begin.’

Studies in two patient groups, each with hundreds of people, revealed that levels of the fragment in the CSF were indicative of tau clumps in the brain seen on imaging and were linked to symptoms of cognitive decline.

Jul 21, 2023

Brain network communication: concepts, models and applications

Posted by in category: neuroscience

Developments in connectomics and network neuroscience over the past 20 years have led to new ways of investigating communication in complex brain networks. In this Review, Seguin, Sporns and Zalesky discuss the current landscape of models of brain network communication.

Jul 21, 2023

Is this hat conscious? | Ben Goertzel on consciousness, panpsychism, and AGI | Big Think

Posted by in categories: finance, robotics/AI, singularity, space

Is this hat conscious?
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Panpsychism is the idea that there is an element of consciousness in everything in the universe. The theory goes like this: You’re conscious. Ben Goertzel is conscious. And his hat is conscious too. What if consciousness isn’t about the brain at all, but it’s as inherent to our universe as space-time?“Now, panpsychism, to me, is not even that interesting, it’s almost obvious — it’s just the foundation, the beginning for thinking about consciousness… ” says Goertzel. It’s what comes after that excites him, like the emerging technology that will let us connect our minds to bricks, hats, earthworms, other humans, and super AGIs like Sophia, and perhaps glimpse at the fabric of consciousness. Goertzel believes brain-brain interfacing and brain-computer interfacing will unfold in the coming decades, and it’s by that means that we may finally crack the nut of consciousness to discover whether panpsychism makes any sense, and to learn why humans are so differently conscious than, for example, his hat.

Continue reading “Is this hat conscious? | Ben Goertzel on consciousness, panpsychism, and AGI | Big Think” »

Jul 21, 2023

David Chalmers: How Does Panpsychism Fit in Between Dualism and Materialism?

Posted by in category: futurism

Interview from the Conference “Emergence and Panpsychism” in Munich 2011.

More information and the complete list of videos here: http://www.geiststaub.de/

Jul 21, 2023

Can We Live Forever as Digital Copies? | Dr. Ben Goertzel at Brain Bar

Posted by in categories: life extension, robotics/AI

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Your mind.exe has stopped working. Do you wish to continue?

Ben Goertzel, Chief scientist of Hanson Robotics and co-creator of the world’s most famous android citizen, Sophia imagines how the “upload my mind” button will look like in the future.

Continue reading “Can We Live Forever as Digital Copies? | Dr. Ben Goertzel at Brain Bar” »

Jul 21, 2023

Seven AI companies agree to safeguards in the US

Posted by in category: robotics/AI

That’s a good idea! Definitely good news.


White House says it’s a ‘critical step’ towards the responsible development of the technology.

Jul 21, 2023

A Battlefield AI Company Says It’s One of the Good Guys

Posted by in categories: military, robotics/AI

Keeping it within a democracy is a great idea.


Helsing AI is building an operating system for warfare and says it’ll only ever sell to democracies.

Jul 21, 2023

Software system can find, track moving objects as small as a pixel

Posted by in categories: computing, drones, satellites, security, surveillance

Remember what it’s like to twirl a sparkler on a summer night? Hold it still and the fire crackles and sparks but twirl it around and the light blurs into a line tracing each whirl and jag you make.

A new patented software system developed at Sandia National Laboratories can find the curves of motion in streaming video and images from satellites, drones and far-range security cameras and turn them into signals to find and track moving objects as small as one . The developers say this system can enhance the performance of any remote sensing application.

“Being able to track each pixel from a distance matters, and it is an ongoing and challenging problem,” said Tian Ma, a computer scientist and co-developer of the system. “For physical security surveillance systems, for example, the farther out you can detect a possible threat, the more time you have to prepare and respond. Often the biggest challenge is the simple fact that when objects are located far away from the sensors, their size naturally appears to be much smaller. Sensor sensitivity diminishes as the distance from the target increases.”