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A first glimpse of the human brainโs drains
๐๐๐๐ข๐๐๐ฅ ๐๐ง๐ข๐ฏ๐๐ซ๐ฌ๐ข๐ญ๐ฒ ๐จ๐ ๐๐จ๐ฎ๐ญ๐ก ๐๐๐ซ๐จ๐ฅ๐ข๐ง๐:
The Neuro-Network.
๐ ๐๐ข๐ซ๐ฌ๐ญ ๐ ๐ฅ๐ข๐ฆ๐ฉ๐ฌ๐ ๐จ๐ ๐ญ๐ก๐ ๐ก๐ฎ๐ฆ๐๐ง ๐๐ซ๐๐ข๐งโ๐ฌ ๐๐ซ๐๐ข๐ง๐ฌ
๐ผ ๐๐ค๐๐ฃ๐ฉ ๐ง๐๐จ๐๐๐ง๐๐ ๐ฉ๐๐๐ข ๐๐ฉ ๐ฉ๐๐ ๐๐๐๐๐๐๐ก ๐๐ฃ๐๐ซ๐๐ง๐จ๐๐ฉ๐ฎ ๐ค๐ ๐๐ค๐ช๐ฉ๐ ๐พ๐๐ง๐ค๐ก๐๐ฃ๐ (๐๐๐๐พ) ๐๐ฃ๐ ๐ฉ๐๐ ๐๐ฃ๐๐ซ๐๐ง๐จ๐๐ฉ๐ฎ ๐ค๐ ๐๐ก๐ค๐ง๐๐๐ ๐๐๐จ๐๐ง๐๐๐๐จ ๐ฉ๐๐โฆ See more.
A new non-invasive technique pioneered at MUSC provides a near-real-time view of the human brainโs waste-clearance vessels.
Discovered: An easier way to create โflexible diamondsโ
As hard as diamond and as flexible as plastic, highly sought-after diamond nanothreads would be poised to revolutionize our worldโif they werenโt so difficult to make.
Recently, a team of scientists led by Carnegieโs Samuel Dunning and Timothy Strobel developed an original technique that predicts and guides the ordered creation of strong, yet flexible, diamond nanothreads, surmounting several existing challenges. The innovation will make it easier for scientists to synthesize the nanothreadsโan important step toward applying the material to practical problems in the future. The work was recently published in the Journal of the American Chemical Society.
Diamond nanothreads are ultra-thin, one-dimensional carbon chains, tens of thousands of times thinner than a human hair. They are often created by compressing smaller carbon-based rings together to form the same type of bond that makes diamonds the hardest mineral on our planet.
Small, diamond-based quantum computers could be in our hands within five years
Circa 2021
Small, affordable, โplug-and-playโ quantum computing is one step closer. An Australian startup has won $13 million to make its diamond-based computing cores shine. Now it needs to grow.
ANU research spinoff Quantum Brilliance has found a way to use synthetic diamonds to drive quantum calculations. Now itโs on a five-year quest to produce commercially viable Quantum Accelerators. The goal is a card capable of being plugged into any existing computer system similar to the way graphics cards are now.
โWeโre not deluding ourselves,โ says CEO Dr Andrew Horsley. โThereโs still a lot of work to do. But weโve now got a five-year pathway to produce a lunchbox-sized deviceโ.
Quantum Friction Explains Waterโs Freaky Flow
Schran agrees. โThis new mechanism of friction is definitely very interesting and exciting,โ he says. โBut what is missing in my opinion, is a clear benchmark measurement.โ Quantifying, for instance, how friction changes based on waterโs interaction with single versus multiple layers of carbon atoms could go a long way to fully verifying the new theory, which predicts that greater numbers of electrons in the multilayered carbon will boost friction.
The study team is already progressing along this path and dreaming of what lies beyond. They are hoping to eventually test their theory with flowing liquids other than water, and nanotubes composed of elements besides carbon. In such cases, molecules in the liquid and the electrons within nanotube walls would follow different patterns of interaction, possibly leading to changes in the degree of quantum friction. Lydรฉric Bocquet says that it may even be possible to control the amount of friction a flowing liquid experiences by constructing nanotubes with electron behavior explicitly in mind.
The new study sets the stage for years of complex exploration by experimental and theoretical physicists alike and, according to Kavokine, also signals a fundamental shift in how physicists should think about friction. โPhysicists have long thought that it is different at the nanoscale, but this difference was not so obvious to find and describe,โ he says. โThey were dreaming about some quantum behavior arising at these scalesโand now we have shown how it does.โ
Disentangling Interactions Across Brain Areas
Summary: Feedforward and feedback signaling involves different neural activity patterns. The findings shed new light on how the brain processes visual information.
Source: Carnegie Mellon University.
Exploring how brain areas communicate with each other is the focus of a long-standing research collaboration between Carnegie Mellon University, Albert Einstein College of Medicine, and Champalimaud Research.