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Dec 19, 2024

Electrons can follow neat paths, even in chaotic quantum systems

Posted by in category: quantum physics

Quantum trickery is improving the resolution of X-ray images while reducing the radiation dose, say scientists.

Dec 19, 2024

New Genetic Link to Autism Identified on X Chromosome

Posted by in categories: biological, genetics, neuroscience

Summary: Researchers identified variants in the DDX53 gene, located on the X chromosome, as contributors to autism spectrum disorder (ASD). These genetic variants, found predominantly in males, provide critical insights into the biological mechanisms behind autism’s male predominance.

The study also uncovered another potential gene, PTCHD1-AS, near DDX53, linked to autism, emphasizing the complexity of ASD’s genetic architecture. This research highlights the importance of the X chromosome in ASD and opens avenues for more precise diagnostics and therapeutics.

Continue reading “New Genetic Link to Autism Identified on X Chromosome” »

Dec 19, 2024

Long-theorized quantum spin liquids observed in the lab

Posted by in categories: materials, quantum physics

Researchers have found evidence of a theorized quantum phenomenon, quantum spin liquid, in a material called pyrochlore cerium stannate.

Dec 19, 2024

BOMBSHELL: Australian drug regulator knows DNA fragments in mRNA vaccines can enter nucleus and integrate into genome, internal emails show

Posted by in category: biotech/medical

Internal emails from the Therapeutic Goods Administration (TGA) reveal that the regulator withheld knowledge of DNA contamination risks relating to the modRNA vaccines from the public, presenting a picture of certainty on safety where there is none.

Released under Freedom of Information (FOI), the cache of emails shows that high-level TGA staff knew elements of the modRNA vaccines can enter the cell nucleus and integrate into the genome, despite the agency’s official line that such events are not possible.

However, TGA personnel appear more preoccupied with “allaying fears in the public” than with investigating the potential risks.

Dec 19, 2024

A liver acid could be an anti-ageing ‘elixir’, Chinese scientists say

Posted by in category: life extension

Researchers find naturally occurring acid induces pseudo-starvation effects, resulting in anti-ageing effects in animals.

Dec 19, 2024

ARPA-H launches new program aimed at extending the healthspan of Americans

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

The Advanced Research Projects Agency for Health (ARPA-H), an agency within the U.S. Department of Health and Human Services (HHS) announced a new funding opportunity through the launch of the PROactive Solutions for Prolonging Resilience, or PROSPR, program. The big question that drives the program is, “What if we had therapies to extend healthspan and prevent the onset of age-related diseases?”

ARPA-H PROSPR Program Manager Andrew Brack, Ph.D., says, “the ultimate goal is to extend healthspan—meaning the number of years aging adults live healthy lives and enjoy overall well-being by compressing the frailty and disability that comes with aging, into a shorter duration of time near the end of life.” The PROSPR program builds on foundational work by the National Institute of Aging and will work with industry and regulators to accelerate the testing and availability of new therapeutics targeted at healthspan.

This commitment by ARPA-H is not only an investment in national health, but an impactful economic investment. The number of people 65 and older accounts for 18% of the U.S. population and is projected to increase to 23% by 2054. Considering their increased care needs relative to younger ages, health care costs will increase by 75% if nothing is done to prevent the progressive loss of physical functioning during aging, according to a Pew Research Center Study. It is estimated that increasing the average American healthspan would lessen health care costs due to a combination of fewer medical needs, less reliance on assistance by others, and increased potential for individuals and their family caregivers to remain in the workforce. Because of these and other factors, it is estimated that extending healthspan by one year in only 10 percent of the aging population would reduce costs of U.S.

Dec 19, 2024

Transsynaptic labeling and transcriptional control of zebrafish neural circuits

Posted by in categories: genetics, neuroscience

The trans–Tango genetic strategy, which mediates signaling across synapses, was adapted to identify neural connections in a vertebrate nervous system, with synaptic partners confirmed in the retina and spinal cord of larval zebrafish.

Dec 19, 2024

New UCLA Research: Omega-3 Rich Diet Could Be Key to Slowing Cancer Progression

Posted by in categories: biotech/medical, health

A UCLA study found that a diet low in omega-6 and high in omega-3 fatty acids, along with fish oil supplements, can significantly slow the growth of prostate cancer cells in men opting for active surveillance, potentially reducing the need for future aggressive treatments.

Researchers from UCLA Health Jonsson Comprehensive Cancer Center have found new evidence that dietary changes may slow cancer cell growth in men with prostate cancer undergoing active surveillance—a treatment approach that involves closely monitoring the cancer without immediate medical intervention.

Prostate Cancer and Dietary Intervention.

Dec 19, 2024

Physicists magnetize a material with light

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

Physicists have created a new and long-lasting magnetic state in a material, using only light. They used a terahertz laser to stimulate atoms in antiferromagnetic materials, which could advance information processing and memory chip technology.

Lighting Up Hidden Magnetism with Terahertz Pulses: A New Frontier in Quantum Materials.

Imagine being able to control the magnetic properties of materials with flashes of light, unlocking states that last long after the light disappears. This groundbreaking approach to quantum materials is at the forefront of condensed-matter physics, offering tantalizing possibilities for future technologies.

Continue reading “Physicists magnetize a material with light” »

Dec 19, 2024

🦿 Training Locomotion Policies with RL#

Posted by in categories: policy, robotics/AI

Genesis supports parallel simulation, making it ideal for training reinforcement learning (RL) locomotion policies efficiently. In this tutorial, we will walk you through a complete training example for obtaining a basic locomotion policy that enables a Unitree Go2 Robot to walk. With Genesis, you will be able to train a locomotion policy that’s deployable in real-world in less than 26 seconds (benchmarked on a RTX 4090).

Acknowledgement: This tutorial is inspired by and builds several core concepts from Legged Gym.

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