All posts tagged: electrical

How caffeine alters the human brain’s electrical braking system

How caffeine alters the human brain’s electrical braking system

Published by José Betancourt

A new study reveals that consuming an amount of caffeine equivalent to two cups of coffee enhances the brain’s ability to temporarily quiet its own motor signals in response to sensory input. The results indicate that everyday habits can alter neurological test readouts, which has implications for diagnosing certain cognitive conditions. The research was published in the journal Clinical Neurophysiology. Measuring the electrical activity of the living human brain presents unique challenges. Neurologists often rely on noninvasive techniques to safely probe how different brain regions communicate. One common tool is transcranial magnetic stimulation, which involves placing an electromagnetic coil against a person’s scalp. The coil delivers brief magnetic pulses through the skull and into the underlying nervous tissue. When positioned over the primary motor cortex, these magnetic pulses generate weak electrical currents that trigger downward signals to the body. This neural pathway travels down the spinal cord and out to the peripheral nerves. If the stimulation is strong enough, it forces a specific muscle to twitch, such as the muscle located at the base of …

NAVEE 34-mile G5 Pro electric scooter 0 Amazon low, meross smart electrical panel energy monitor 0, more

NAVEE 34-mile G5 Pro electric scooter $560 Amazon low, meross smart electrical panel energy monitor $160, more

Published by skeptic

Today’s 9to5Toys Green Deals is headlined by meross’ recently-released 18-circuit electrical panel monitor as well as Amazon undercutting beating out the official NAVEE sale on its own 34-mile G5 Pro electric scooter. That’s just a couple of the headliners you’ll find, so continue reading to see them all. Head below for other Green Deals we’ve found today and, of course, Electrek‘s best EV buying and leasing deals. Also, check out the new Electrek Tesla Shop for the best deals on Tesla accessories. Curb energy usage with meross’ recently-released 18-circuit Apple Home electrical panel monitor, now $160 (Reg. $250) Over at Amazon we’ve spotted the official meross storefront offering its Smart 18-Circuit Electrical Panel Energy Monitor for $159.99 shipped when you clip the on-page $30 off coupon. When this first landed on Amazon’s shelves back in December it clocked in at $300. In March we saw it drop to $250 which is the price it held at for the longest before seeing some drops into the $180 to $200 range. Today’s offer shaves even more off, clocking in at $160. …

Owl saved from electrical fence adopts abandoned owlet

Owl saved from electrical fence adopts abandoned owlet

Published by Jenni Sidey

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. When animals end up in a wildlife center, it’s usually not for happy reasons. But sometimes tough situations have a silver lining, and that’s exactly what’s happened at Raven Ridge Wildlife Center in Washington Boro, Pennsylvania. The rescue center received a call from a game warden about a female great horned owl (Bubo virginianus) that had gotten stuck in an electrical fence. The game warden had successfully removed her from the fence, but the owl was struggling, unable to stand or fly. Thinking the owl may have broken a wing, he took her to the Raven Ridge Wildlife Center.  Thankfully, neither of the owl’s wings broke, though one of them appeared swollen. While examining the patient, licensed wildlife rehabilitator Tracie Young noticed that the great horned owl had a brood patch—essentially a bare patch of skin that develops to provide a direct heat source for eggs.  That meant she was a mama owl. Unfortunately, with the time that had …

Burundi’s main city rocked by blasts after electrical fire at military store

Burundi’s main city rocked by blasts after electrical fire at military store

Published by Sam Flores

Multiple explosions ripped through the city of Bujumbura after a fire broke out late on Tuesday at a military arsenal in Burundi’s economic capital, an army spokesman said. Fear of a coup in the small African Great Lakes nation gripped the population after a projectile landed close to the national radio broadcaster, a resident living near the affected building told AFP, requesting anonymity. In a video seen by AFP, a tall mushroom cloud of smoke loomed over a neighbourhood in Bujumbura at nightfall, which another resident described as “spreading terror” across the city. Very tall flames were also visible in a photo sent to AFP, while a Burundian media platform also relayed reports of gunfire. “A serious electrical accident in the ammunition store of the FDNB (Burundi National Defence Force) based in Musaga is the cause of the explosions currently being heard in the economic capital Bujumbura,” Burundian army spokesman Gaspard Baratuza said. Musaga sits in the southern suburbs of Bujumbura, the economic capital of a country ranked by the World Bank as the Earth’s …

Lab-grown brain models reveal unique electrical patterns in different types of autism

Lab-grown brain models reveal unique electrical patterns in different types of autism

Published by José Betancourt

A new study published in Translational Psychiatry suggests that miniature, lab-grown brain models can reveal distinct electrical activity patterns in different types of autism. By analyzing brain tissues grown from patient urine samples, scientists provide evidence that these models can accurately distinguish between neurotypical individuals and those with various autism profiles. These findings tend to offer a new way to understand the biological roots of autism and test personalized treatments. Autism is a neurodevelopmental condition characterized by differences in social communication and restricted, repetitive behaviors. While some cases are linked to specific genetic mutations, known as syndromic autism, most cases have unknown origins and are classified as idiopathic. Traditional animal models often struggle to replicate the complex features of the human brain. This makes it difficult to study how specific genetic changes affect human brain function. Patient-derived brain organoids offer a biological solution to this problem. Brain organoids are tiny, three-dimensional clusters of brain cells grown in a laboratory that mimic early human brain development. Because they are grown from a patient’s own cells, they …

Electrical stimulation can restore ability to move limbs after spinal cord injury

Electrical stimulation can restore ability to move limbs after spinal cord injury

Published by Jenni Sidey

One participant pointed to her chest. That, she explained, is where she felt her foot hit the treadmill. Not the foot itself, not the ground beneath it, but a sensation somewhere above the injury that her brain had learned to translate into something useful. “It wasn’t like I could feel my foot hit the treadmill or anything like that,” she said, “but it was close.” Close is a word that carries real weight in spinal cord injury research. For people who have lost all sensation and movement below the waist, close to normal is not a consolation. It is a clinical milestone. A team from Brown University, Rhode Island Hospital, and VA Providence Healthcare has now reported results from a small but significant clinical trial, the first to demonstrate simultaneous motor control and sensory feedback in people with complete spinal cord injuries. The findings were published in Nature Biomedical Engineering. David Borton (left), an asociate professor of engineering and brain science at Brown, and Jonathan Calvert (right), an assistant professor at UC Davis who led …

Google and Tesla think we’re managing the electrical grid all wrong

Google and Tesla think we’re managing the electrical grid all wrong

Published by skeptic

Google, Tesla, and data center developer Verrus are among a group of companies arguing that the electrical grid is being underutilized and they want everyone — especially politicians — to know about it. The three companies along with HVAC giant Carrier, virtual power plant company Renew Home, distributed energy resource developer Sparkfund, and smart electrical panel startup Span founded a new group called Utilize to get that message across. The group, which launched Tuesday, is advocating to change the way the grid is built and used. The group points out, correctly, that the grid is designed for brief bursts of high demand; most of the time there’s lots of capacity that goes unused. Utilize thinks that should change. The group argues that smarter ways to use that capacity already exist. Utilize name-checks a number of those solutions, including battery storage, demand response, and virtual power plants, all of which have emerged en masse over the last decade, but remain under utilized. (Oh, that’s where the name comes from.) In many cases, those new technologies are …

Air Force One to land at Joint Base Andrews after crew finds ‘minor electrical issue’

Air Force One to land at Joint Base Andrews after crew finds ‘minor electrical issue’

Published by Sam Flores

Air Force One on Tuesday, en route to the World Economic Forum in Davos, Switzerland, will land at Joint Base Andrews after crew members identified “a minor electrical issue.” White House press secretary Karoline Leavitt confirmed that the issue was found after takeoff and, out of an abundance of caution, Air Force One will turn… Source link

Scientists may have discovered a usable source of electrical power within cells

Scientists may have discovered a usable source of electrical power within cells

Published by Jenni Sidey

Cells do more than carry out chemical reactions. New theoretical work suggests they may also generate usable electrical energy through constant motion in their membranes, offering a fresh way to think about how biology powers itself. Researchers at the University of Houston and Rutgers University report that tiny ripples in the fatty membranes surrounding cells could create voltages strong enough to support important biological tasks. Their study focuses on how active motion inside cells, driven by energy-consuming proteins, may turn membrane bending into a source of electrical power. “Cells are not passive systems; they are driven by internal active processes such as protein activity and ATP consumption,” the researchers write. “We show that these active fluctuations, when coupled with the universal electromechanical property of flexoelectricity, can generate transmembrane voltages and even drive ion transport.” Schematic of an active cell membrane. In a typical active biological process, active proteins (shown in a variety of colors) in a cell membrane interact with various biological components, such as the ATP molecules. (CREDIT: PNAS) A physical link between motion …