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Archive for the ‘electronics’ category: Page 6

Jun 22, 2023

Brain noise doesn’t explain consciousness

Posted by in categories: electronics, neuroscience

The foremost physiological effect of psychedelics in the brain is to significantly reduce activity in multiple brain areas, which contradicts the mainstream reductionist expectation. Physicalist neuroscientists have proposed that an increase in brain noise explains the subjective richness of a psychedelic experience, but a psychedelic experience isn’t akin to TV static, argues Bernardo Kastrup.

Before 2012, the generally accepted wisdom in neuroscience was that psychedelic substances—which lead to unfathomably rich experiential states—stimulate neuronal activity and light up the brain like a Christmas tree. Modern neuroimaging, however, now shows that they do precisely the opposite: the foremost physiological effect of psychedelics in the brain is to significantly reduce activity in multiple brain areas, while increasing it nowhere in the brain beyond measurement error. This has been consistently demonstrated for multiple psychedelic substances (psilocybin, LSD, DMT), with the use of multiple neuroimaging technologies (EEG, MEG, fMRI), and by a variety of different research groups (in Switzerland, Brazil, the United Kingdom, etc.). Neuroscientist Prof. Edward F. Kelly and I published an essay on Scientific American providing an overview of, and references to, many of these studies.

These results contradict the mainstream metaphysics of physicalism for obvious reasons: experience is supposed to be generated by metabolic neuronal activity. A dead person with no metabolism experiences nothing because their brain has no activity. A living person does because their brain does have metabolic activity—or so the story goes. And since neuronal activity supposedly causes experiences, there can be nothing to experience but what can be traced back to patterns of neuronal activity (otherwise, one would have to speak of disembodied experience). Ergo, richer, more intense experience—such as the psychedelic state—should be accompanied by increased activity somewhere in the brain; for it is this increase that supposedly causes the increased richness and intensity of the experience.

Jun 21, 2023

Scientists develop new technique to peer into the genome’s spatial architecture

Posted by in categories: biotech/medical, electronics

People who owned black-and-white television sets until the 1980s didn’t know what they were missing until they got a color TV. A similar switch could happen in the world of genomics as researchers at the Berlin Institute of Medical Systems Biology of the Max Delbrück Center (MDC-BIMSB) have developed a technique called Genome Architecture Mapping (“GAM”) to peer into the genome and see it in glorious technicolor. GAM reveals information about the genome’s spatial architecture that is invisible to scientists using solely Hi-C, a workhorse tool developed in 2009 to study DNA interactions, reports a new study in Nature Methods by the Pombo lab.

With a black-and-white TV, you can see the shapes but everything looks grey. But if you have a color TV and look at flowers, you realize that they are red, yellow and white and we were unaware of it. Similarly, there’s also information in the way the genome is folded in three-dimensions that we have not been aware of.

Jun 20, 2023

Silicon nose: Small sensor ‘smells’ incipient seizures

Posted by in categories: chemistry, electronics

ALBUQUERQUE, N.M. — In people with epilepsy, seizure-alert dogs can smell small changes in body chemistry and warn of an impending seizure an hour or more before it occurs. Inspired by this feat of nature, a team of researchers has sniffed out a way to replicate the ability with technology.

Jun 19, 2023

Elon Musk reveals there’s a Twitter app coming to Smart TVs that’ll solve a major problem

Posted by in categories: electronics, Elon Musk

According to a recent tweet from Twitter owner Elon Musk who recently confirmed the app, Twitter is preparing to launch its own video app for Smart TVs.

Jun 15, 2023

Remote-Controlled Pill Camera Can Help Diagnose Digestive Issues

Posted by in categories: biotech/medical, electronics

Scientists have developed a pill-shaped, swallowable camera that can be controlled by physicians once ingested to help doctors diagnose digestive issues.

Ingestible pill-shaped endoscopes are not a new idea. Last year, PetaPixel reported on the Pillcam which is just such a device, but it had limitations just like all other swallowable pill cameras: doctors can’t control it once it is ingested.

Continue reading “Remote-Controlled Pill Camera Can Help Diagnose Digestive Issues” »

Jun 15, 2023

Are smartphone thermal cameras sensitive enough to uncover PIN codes?

Posted by in categories: electronics, mobile phones

I’ve found a lot of reasons – from finding components that are overheating (which can indicate faulty components), identifying overheating wires and connectors (which can indicate damaged wires or connectors), diagnosing issues with HVAC, find draughts at home, and much, much more.

Also: This $10 gadget is my favorite repair tool of all time

Continue reading “Are smartphone thermal cameras sensitive enough to uncover PIN codes?” »

Jun 13, 2023

Former Samsung exec accused of stealing data to build copycat chip plant in China

Posted by in categories: computing, electronics

A former executive of Samsung Electronics stole the juggernaut’s confidential semiconductor data to build a copycat chip facility in China, South Korean prosecutors alleged on Monday.

The 65-year-old defendant, who also previously worked for Korean chipmaker SK Hynix, has been arrested. He has been accused of violating industrial technology protection laws and stealing trade secrets from 2018 to 2019 to establish a copy of Samsung’s semiconductor plant, just 1.5 kilometers away from Samsung chip factory in Xi’an, China.

The ex-Samsung exec’s attempt to build the copycat chip plant allegedly fell through after his backer, purportedly an undisclosed Taiwanese company, canceled more than a $6 billion (approximately 8 trillion won) investment into the project, prosecutors said. Instead, he received capital from investors in China and Taiwan to produce trial chip products based on Samsung’s technology.

Jun 13, 2023

Watch a drone swarm navigate a bamboo forest

Posted by in categories: drones, electronics

By arming each drone with its own sensors, researchers have created the first swarm capable of navigating a wide environment.

Jun 9, 2023

Metalens-based spectrometer fits on a chip

Posted by in category: electronics

Metasurface performance: a) A schematic diagram of the proposed metasurface spectrometer based on w.

May 30, 2023

The first 110-inch 16K TV screen is here to make your projector feel inadequate

Posted by in category: electronics

Chinese display maker BOE has unveiled a truly massive 110-inch 16K TV, putting the hordes of 4K TVs and projectors on the market to shame.

This seismically large prototype packs in a 16K resolution, with four times as many pixels as an 8K screen, and 16 times the pixel count of 4K. It was shown off at SID Display Week 2023 in Los Angeles, to celebrate BOE’s 30-year anniversary with a showcase of cutting-edge resolution far beyond the average television (via Heise.de).

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