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Jun 4, 2023

Repeated signals from the center of the Milky Way could be aliens saying hello, new study claims

Posted by in category: alien life

A new search for extraterrestrial life has scientists looking inward — toward the center of our galaxy.

Jun 4, 2023

Resveratrol Extends Lifespan, But Only Under Two Experimental Conditions

Posted by in categories: biotech/medical, genetics, life extension

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Continue reading “Resveratrol Extends Lifespan, But Only Under Two Experimental Conditions” »

Jun 4, 2023

“I Have no Mouth And i Must Scream” || Unofficial Audiobook || Harlan Ellison || a Vox in The Void

Posted by in category: futurism

“I Have No Mouth, and I Must Scream” is a post-apocalyptic science fiction short story by American writer Harlan Ellison. It was first published in the March 1967 issue of IF: Worlds of Science Fiction. It won a Hugo Award in 1968.


Jun 4, 2023

A structural model of the core of cilia

Posted by in category: futurism

An atomic model of the axoneme core of the hair-like cilia on some cells reveals how they move.

Jun 4, 2023

How a protein differentiates between rare-earth elements

Posted by in category: futurism

Structures and metal-binding modes of lanmodulin proteins.

Jun 4, 2023

Elevated low‐density lipoprotein cholesterol: An inverse marker of morbidity and mortality in patients with myocardial infarction

Posted by in category: biotech/medical

Background The incidence of atherosclerotic cardiovascular disease increases with levels of low-density lipoprotein cholesterol (LDL-C). Yet, a paradox may exist where lower LDL-C levels at myocardial infarction (MI) are associated with poorer prognoses.

Jun 4, 2023

An organic electrochemical transistor that serves as a sensor and processor

Posted by in categories: chemistry, robotics/AI

In recent years, electronics engineers have been trying to develop new brain-inspired hardware that can run artificial intelligence (AI) models more efficiently. While most existing hardware is specialized in either sensing, processing or storing data, some teams have been exploring the possibility of combining these three functionalities in a single device.

Researchers at Xi’an Jiaotong University, the University of Hong Kong and Xi’an University of Science and Technology introduced a new organic transistor that can act as a sensor and processor. This transistor, introduced in a paper published in Nature Electronics, is based on a vertical traverse architecture and a crystalline-amorphous channel that can be selectively doped by ions, allowing it to switch between two reconfigurable modes.

“Conventional (AI) hardware uses separate systems for data sensing, processing, and ,” Prof. Wei Ma and Prof. Zhongrui Wang, two of the researchers who carried out the study, told Tech Xplore.

Jun 4, 2023

An Almost Invisible Desktop

Posted by in category: computing

When you’re putting together a computer workstation, what would you say is the cleanest setup? Wireless mouse and keyboard? Super-discrete cable management? How about no visible keeb, no visible mouse, and no obvious display?

That’s what [Basically Homeless] was going for. Utilizing a Flexispot E7 electronically raisable standing desk, an ASUS laptop, and some other off-the-shelf parts, this project is taking the idea of decluttering to the extreme, with no visible peripherals and no visible wires.

Continue reading “An Almost Invisible Desktop” »

Jun 4, 2023

Perovskite Sensor Array Emulates Human Retina For Panchromatic Imaging

Posted by in categories: biological, information science, life extension, robotics/AI, solar power, sustainability

The mammalian retina is a complex system consisting out of cones (for color) and rods (for peripheral monochrome) that provide the raw image data which is then processed into successive layers of neurons before this preprocessed data is sent via the optical nerve to the brain’s visual cortex. In order to emulate this system as closely as possible, researchers at Penn State University have created a system that uses perovskite (methylammonium lead bromide, MAPbX3) RGB photodetectors and a neuromorphic processing algorithm that performs similar processing as the biological retina.

Panchromatic imaging is defined as being ‘sensitive to light of all colors in the visible spectrum’, which in imaging means enhancing the monochromatic (e.g. RGB) channels using panchromatic (intensity, not frequency) data. For the retina this means that the incoming light is not merely used to determine the separate colors, but also the intensity, which is what underlies the wide dynamic range of the Mark I eyeball. In this experiment, layers of these MAPbX3 (X being Cl, Br, I or combination thereof) perovskites formed stacked RGB sensors.

The output of these sensor layers was then processed in a pretrained convolutional neural network, to generate the final, panchromatic image which could then be used for a wide range of purposes. Some applications noted by the researchers include new types of digital cameras, as well as artificial retinas, limited mostly by how well the perovskite layers scale in resolution, and their longevity, which is a long-standing issue with perovskites. Another possibility raised is that of powering at least part of the system using the energy collected by the perovskite layers, akin to proposed perovskite-based solar panels.

Jun 4, 2023

Intelligent brains take longer to solve difficult problems, shows simulation study

Posted by in category: neuroscience

Do intelligent people think faster? Researchers at the BIH and Charité—Universitätsmedizin Berlin, together with a colleague from Barcelona, made the surprising finding that participants with higher intelligence scores were only quicker when tackling simple tasks, while they took longer to solve difficult problems than subjects with lower IQ scores.

In personalized brain simulations of the 650 participants, the researchers could determine that brains with reduced synchrony between literally “jump to conclusions” when making decisions, rather than waiting until upstream brain regions could complete the processing steps needed to solve the problem.

In fact, the brain models for higher score participants also needed more time to solve challenging tasks but made fewer errors. The scientists have now published their findings in the journal Nature Communications.

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