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Dec 7, 2024

Brain mapping technique reveals insights into brain’s higher functions

Posted by in categories: mapping, neuroscience

A new way of mapping activity and connections between different regions of the brain has revealed fresh insights into how higher order functions like language, thought and attention, are organized.

Traditional models of activity represent interactions in pairs between two different brain regions. This is because modeling methods have not developed sufficiently to describe more between multiple regions.

A new approach, developed by researchers at the University of Birmingham is capable of taking signals measured through neuroimaging, and creating accurate models from these to show how different are contributing to specific functions and behaviors. The results are published in Nature Communications.

Dec 7, 2024

Huge Experiment Gives First Glimpse of The Internal Structure of a Neutron

Posted by in categories: climatology, particle physics, quantum physics

An experiment more than 10 years in the making has delivered its first glimpse of the hurricane of particles whirring inside subatomic particles called neutrons, laying the groundwork to solve a mystery deep in the heart of matter.

Data from the Central Neutron Detector at the US Department of Energy’s Thomas Jefferson National Accelerator Facility (TJNAF) is already playing a role in describing the quantum map of the neutron’s engine.

“It’s a quite important result for the study of nucleons,” says Silvia Niccolai, a research director at the French National Centre for Scientific Research.

Dec 7, 2024

First look at jet-powered VTOL X-plane for DARPA program

Posted by in category: transportation

We got a glimpse at what a new cross between a helicopter and a jet aircraft might look like after Bell released a new image. It’s of a model used in wind tunnel tests of its entry in DARPA’s Speed and Runway Independent Technology (SPRINT) program.

Rotorcraft like helicopters have the advantage of vertical takeoffs and landings in rough country but haven’t much in the way of speed. Jet planes have lots of speed but need runways and even the STOVL variety need a properly flat surface to land on. It was long accepted that these were two very different classes of aircraft without much in the way of overlap.

That is, until DARPA initiated its SPRINT program aimed at making the twain meet in an aircraft that could take off, land, and hover like a rotorcraft and then transition into a jet when in vertical flight.

Dec 7, 2024

World’s First “Molecular Movie”: Witness DNA Becoming Life’s Blueprint in Real-Time

Posted by in categories: biotech/medical, nanotechnology

Using an innovative approach, EMBL scientists uncovered key interactions between molecular machines, potentially opening new avenues for drug development.

Choosing a film for a movie night is always a battle. Now imagine if you could pick one that provided a window into some of the most fundamental biological processes that keep us alive. For the first time ever, researchers have captured a real-time molecular movie to show how two essential cellular processes – transcription and translation – interact with each other in bacteria.

Continue reading “World’s First ‘Molecular Movie’: Witness DNA Becoming Life’s Blueprint in Real-Time” »

Dec 7, 2024

Lockheed’s Skunk Works Gets New Boss

Posted by in category: futurism

O.J. Sanchez, who oversees F-16 and F-22 development and sustainment at Lockheed Martin, will take over the famed Skunk Works unit in January.

Dec 7, 2024

Hackers Infect 8,000,000 Smartphones As ‘SpyLoan’ Drains Bank Accounts, Steals Sensitive Data for Extortion: McAfee Alert

Posted by in categories: cybercrime/malcode, finance, mobile phones

Cybersecurity firm McAfee says it’s identified a “significant global increase” in a smartphone hack that triggers extortion, harassment and drains bank accounts.

McAfee says hackers are increasingly deploying a group of malicious financial apps containing “SpyLoan” malware, posing a serious threat with more than eight million active installations around the world.

The apps are on Google Play and use the names, logos, brand colors and interfaces of well-known financial institutions.

Dec 7, 2024

Nuclear Expression of a Mitochondrial Gene in Mice

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

Scientists from the Longevity Research Institute (LRI), which was formed by the merger of SENS Research Foundation and Lifespan.io, have achieved expression of an essential mitochondrial gene in the nucleus and proper functioning of the protein. This could pave the way for curing diseases caused by mitochondrial mutations [1].

The fragile mitochondrial DNA

The prevailing scientific consensus is that mitochondria were once independent microorganisms that entered a symbiotic relationship with larger cells. This duo gave rise to eukaryotic cells: the building blocks of all multicellular life. Without that fateful “marriage,” complex life would not exist, as mitochondria provide cells with essential energy via oxidative phosphorylation.

Dec 7, 2024

AWS, NVIDIA Offer Deep Dive Into Their Partnership to Develop Hybrid Quantum Computing

Posted by in categories: computing, information science, quantum physics

AWS and NVIDIA are teaming up to address one of the biggest challenges in quantum computing: integrating classical computing into the quantum stack, according to an AWS Quantum Technologies blog post. This partnership brings NVIDIA’s open-source CUDA-Q quantum development platform to Amazon Braket, enabling researchers to design, simulate and execute hybrid quantum-classical algorithms more efficiently.

Hybrid computing — where classical and quantum systems work together — is actually a facet of all quantum computing applications. Classical computers handle tasks like algorithm testing and error correction, while quantum computers tackle problems beyond classical reach. As quantum processors improve, the demand for classical computing power grows exponentially, especially for tasks like error mitigation and pre-processing.

The collaboration between AWS and NVIDIA is designed to ease this transition by providing researchers with seamless access to NVIDIA’s CUDA-Q platform directly within Amazon Braket. This integration allows users to test their programs using powerful GPUs, then execute the same programs on quantum hardware without extensive modifications.

Dec 7, 2024

Teen Mathematicians Tie Knots Through a Mind-Blowing Fractal

Posted by in category: mathematics

Three high schoolers and their mentor revisited a century-old theorem to prove that all knots can be found in a fractal called the Menger sponge.

Dec 7, 2024

Liquid water molecules are inherently asymmetric: New insight into the bonds between water molecules

Posted by in category: particle physics

Icebergs float on water because the underlying liquid water has a higher density than the iceberg. Liquid water itself has its highest density at 4°C—one of the so-called anomalies of water, i.e. properties of liquids that are rarely observed for other liquids.

The origins of these anomalies have long been the subject of scientific research. Researchers at the Max Planck Institute for Polymer Research have now discovered another piece to the puzzle to explain the special behavior of water.

Many of the anomalous properties of water can be traced to the special interactions between the individual —the so-called hydrogen bonds. Each water molecule can donate two of these bonds—one from each hydrogen atom—and accept two of them from other, neighboring molecules.

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