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Oct 2, 2023

Physicists coax superconductivity and more from quasicrystals

Posted by in categories: materials, physics

In research that could jumpstart interest into an enigmatic class of materials known as quasicrystals, MIT scientists and colleagues have discovered a relatively simple, flexible way to create new atomically thin versions that can be tuned for important phenomena. In work reported in Nature they describe doing just that to make the materials exhibit superconductivity and more.

The research introduces a new platform for not only learning more about quasicrystals, but also exploring exotic phenomena that can be hard to study but could lead to important applications and new physics. For example, a better understanding of superconductivity, in which electrons pass through a material with no resistance, could allow much more efficient electronic devices.

The work brings together two previously unconnected fields: quasicrystals and twistronics. The latter was pioneered at MIT only about five years ago by Pablo Jarillo-Herrero, the Cecil and Ida Green Professor of Physics at MIT and corresponding author of the paper.

Oct 2, 2023

Study sheds new light on how soil viruses behave and interact with bacteria

Posted by in categories: evolution, space

Viruses in soil may not be as destructive to bacteria as once thought and could instead act like lawnmowers, culling older cells and giving space for new growth, according to research out of the University of California, Davis, published Sept. 28 in the journal Nature Ecology and Evolution.

How affect ecosystems, including bacteria, is challenging to untangle because they are complex and change over time and space. But the first annual rain on Mediterranean ecosystems, such as those in California, offers a kind of reset, triggering activity that can be observed.

Scientists took from four California grasslands, brought it back to their lab and simulated precipitation by watering the dry samples, which grew microorganisms and viruses. They tracked changes over 10 days.

Oct 2, 2023

In Neuroscience Flap, Science Media Tackle “Pseudoscience” Claim

Posted by in categories: neuroscience, science

The question comes down to this: If materialism collapses, what will science look like? Will the people who are interested in science today continue to be so? Will the same people continue to dominate?

One thing for sure: A lot of things will come tumbling out in the wash.

*In my experience, the abortion issue has mostly been Catholic and other grannies vs. abortionists. If, like David Chalmers, you are inclined to take bets, bet on the grannies.

Oct 2, 2023

MIT’s New Fluxonium Qubit Circuit Enables Quantum Operations With Unprecedented Accuracy

Posted by in categories: quantum physics, supercomputing

The advance brings quantum error correction a step closer to reality.

In the future, quantum computers may be able to solve problems that are far too complex for today’s most powerful supercomputers. To realize this promise, quantum versions of error correction codes must be able to account for computational errors faster than they occur.

However, today’s quantum computers are not yet robust enough to realize such error correction at commercially relevant scales.

Oct 2, 2023

Cell biologists identify new organelle present in mammalian cells made of rings of DNA

Posted by in categories: biotech/medical, life extension

Researchers at ETH Zurich recently identified a previously unknown compartment in mammalian cells. They have named it the exclusome. It is made up of DNA rings known as plasmids. The researchers have published details of their discovery in the journal Molecular Biology of the Cell.

The new compartment is in the cell plasma; it is previously uncharacterized in the literature. It is exceptional because eukaryotic cells (cells with nuclei) usually keep most of their DNA in the , where it is organized into chromosomes.

Some of the plasmids that end up in the exclusome originate from outside the cell, while others—known as telomeric rings—come from the capped ends of chromosomes, the telomeres. Particularly in certain , the ones from the telomeres are regularly pinched off and joined together to form rings. However, these don’t contain the blueprints for proteins.

Oct 2, 2023

Team elucidates mechanism for maximizing therapeutic effects of magnetic nanotherapeutics for cancer

Posted by in categories: biotech/medical, nanotechnology, robotics/AI

A team led by Professor Choi Hong-Soo in the Department of Robotics and Mechatronics Engineering at DGIST has discovered a method to enhance the penetration of magnetic nanoparticles into cancer cells and their magnetic hyperthermia effects through research on chain disassembly and magnetic propulsion mechanisms using a rotational magnetic field.

Published in the journal ACS Nano, their study focused on the delivery of magnetic therapeutic agents using magnetic fields, an area receiving attention in the field of cancer treatment. It is expected to contribute significantly by improving drug delivery efficiency and therapeutic effects in targeted cancer treatments.

Recently, the development of targeted therapeutics that selectively treat has been gaining attention in the field of cancer treatment. Among them, research on magnetic carriers that target cancer cells using magnetic fields is underway. However, a problem arises when magnetic nanoparticles are exposed to a uniform magnetic field with a general form; they form long chains in the direction of the magnetic field, making penetration into cancer cells or tumors difficult and reducing the therapeutic efficacy.

Oct 2, 2023

Targeting A $2 Dose AGING REVERSAL Therapy For Everyone

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

George Church at his most optimistic. June 1, 2022.

Dr George Church talks about combination therapies for age reversal, recently published papers from his lab and expresses his wish on developing inexpensive gene therapies like vaccine that can be equitably distributed to human.

Continue reading “Targeting A $2 Dose AGING REVERSAL Therapy For Everyone” »

Oct 2, 2023

Cholesterol Esters: Underrated Metabolites That Are Associated With Youth And Survival

Posted by in categories: biotech/medical, genetics, health

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Oct 2, 2023

SpaceX Ramps Up Starlink Internet Speeds With Thousands of Space Lasers

Posted by in categories: internet, satellites

Starlink is upgrading its satellite constellation to rev up its internet service. The company launched 8,000 upgraded space lasers capable of transmitting data at speeds up to 100 Gbps.

On September 26, Starlink posted a look at the improved V2 Mini satellites, which will enhance the constellation’s speed, reliability, and reach.

“Our next generation Starlink optical space lasers (pew pew!) were launched to orbit on Monday,” Starlink tweeted on X (formerly Twitter).

Oct 2, 2023

World-first Dutch program will use ride-share cars as a grid battery

Posted by in categories: energy, sustainability, transportation

Renewable energy grids need lots of energy storage – and EVs plugged into charging stations represent a huge, city-wide battery just waiting to help out. The Dutch city of Utrecht is about to pioneer a clever way to kickstart two-way charging.

The idea has been done plenty at the domestic level – where devices like Toyota’s V2H (vehicle-to-home) charging system can turn an electric car into a high-powered backup power supply capable of running your whole home for days at a time.

And people have been talking about it on a broader, city-wide scale since the dawn of the EV revolution; the same high power density batteries that makes EVs so quick to accelerate make them perfect for quickly sending power back into the grid to smooth out demand spikes.

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