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May 26, 2024

Intelligent Neuroprostheses: Brain-Controlled Devices Mimic Natural Motor Control

Posted by in categories: biotech/medical, cyborgs, neuroscience, robotics/AI

Researchers have tested a range of neuroprosthetic devices, from wheelchairs to robots to advanced limbs, that work with their users to intelligently perform tasks.

They work by decoding brain signals to determine the actions their users want to take, and then use advanced robotics to do the work of the spinal cord in orchestrating the movements. The use of shared control — new to neuroprostheses — “empowers users to perform complex tasks,” says José del R. Millán, who presented the new work at the Cognitive Neuroscience Society (CNS) conference in San Francisco today.

Millán, of the Swiss Federal Institute of Technology in Lausanne, Switzerland, began working on “brain-computer interfaces” (BCIs), designing devices that use people’s own brain activity to restore hand grasping and locomotion, or provide mobility via wheelchairs or telepresence robots, using people’s own brain activity.

May 26, 2024

State-dependent responses to intracranial brain stimulation in a patient with depression

Posted by in categories: biotech/medical, neuroscience

This is something I wish i had.

Acute mapping of responses to focal electrical neuromodulation in a patient with treatment-resistant depression reveals distinct mood and symptom changes that are highly context dependent.

May 26, 2024

$1,800,000,000,000 Bank Says Customer and Employee Data Has Been Exposed and Accessed in Mysterious Breach

Posted by in categories: cybercrime/malcode, finance

One of the largest banks in the world says a data breach has exposed customer and employee information.

In a statement, Santander says it’s aware of “unauthorized access” to a third-party database containing information on an undisclosed number of customers and employees.

The bank, which has $1.8 trillion in total assets and operates in ten markets across Europe and the Americas, says customers of Santander Chile, Spain and Uruguay are affected.

May 26, 2024

Microplastics entering blood could further harm cardiovascular health

Posted by in categories: biotech/medical, health

Cardiovascular health may be further endangered by microplastic particles that find their way into human blood, a new study suggests.

May 26, 2024

The S-Matrix Is the Oracle Physicists Turn To in Times of Crisis

Posted by in categories: mathematics, particle physics

The Standard Model Lagrangian specifies all known particles that might come into being during a collision and how they might interact.

particle physics

By Matt von Hippel

Continue reading “The S-Matrix Is the Oracle Physicists Turn To in Times of Crisis” »

May 26, 2024

Diamonds grown at normal pressure in just 15 minutes

Posted by in categories: climatology, particle physics

Diamonds are famously formed under high pressure and temperature, which is partly why they’re so valuable. But now, scientists have created diamonds in a lab under regular pressure in just 15 minutes.

Diamonds are basically just plain old carbon that’s been put under immense pressure and temperature, causing the atoms to crystallize into a particular structure. On Earth, the only place with the right natural conditions is deep in the mantle, hundreds of miles down. Only later are they brought closer to the surface, hitching rides in volcanic eruptions, which makes them pretty rare. Couple that with some of the most insidious marketing in history, and you’ve got a highly sought-after little rock.

Scientists have been growing diamonds in labs for decades, but it usually still needs those extreme conditions – almost 50,000 atmospheres of pressure, and temperatures of about 1,500 °C (2,732 °F). But a new technique has now produced diamonds under normal pressure levels and cooler temperatures.

May 26, 2024

MIT scientists discovered how to make steel with electricity

Posted by in category: futurism

Scientists at MIT found a way to create electric steelmaking, allowing them to create steel using electricity instead of coal.

May 26, 2024

Study Finds That 52 Percent of ChatGPT Answers to Programming Questions Are Wrong

Posted by in category: futurism

78 percent of the answers suffer from different degrees of inconsistency to human answers.

Researchers found that 52 percent of answers to programming questions generated by ChatGPT were incorrect.

May 26, 2024

Hungry, Hungry White Dwarfs: Solving the Puzzle of Stellar Metal Pollution

Posted by in categories: chemistry, food, space

Dead stars known as white dwarfs, have a mass like the sun while being similar in size to Earth. They are common in our galaxy, as 97% of stars are white dwarfs. As stars reach the end of their lives, their cores collapse into the dense ball of a white dwarf, making our galaxy seem like an ethereal graveyard.

Despite their prevalence, the chemical makeup of these stellar remnants has been a conundrum for astronomers for years. The presence of heavy metal elements—like silicon, magnesium, and calcium—on the surface of many of these compact objects is a perplexing discovery that defies our expectations of stellar behavior.

“We know that if these heavy metals are present on the surface of the white dwarf, the white dwarf is dense enough that these heavy metals should very quickly sink toward the core,” explains JILA graduate student Tatsuya Akiba. “So, you shouldn’t see any metals on the surface of a white dwarf unless the white dwarf is actively eating something.”

May 26, 2024

An English Teacher Reads “Who Can Replace a Man?” by Brian Aldiss

Posted by in category: futurism

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