dimanche 28 septembre 2025

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Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 39:

Key driver of pancreatic cancer spread identified

A Cornell-led study has revealed how a deadly form of pancreatic cancer enters the bloodstream, solving a long-standing mystery of how the disease spreads and identifying a promising target for therapy.

Magnesium inhibits colorectal cancer carcinogenesis by increasing vitamin D-synthesizing bacteria

Researchers from Vanderbilt University Medical Center have demonstrated in a precision-based clinical trial that a magnesium supplement increases gut bacteria in humans that have been shown to synthesize vitamin D and inhibit colorectal cancer carcinogenesis.

Oral bacteria linked to Parkinson's via the gut-brain axis

Korean researchers have uncovered compelling evidence that oral bacteria, once colonized in the gut, can affect neurons in the brain and potentially trigger Parkinson's disease.

Different types of magic mushrooms use unique biochemical paths to produce the same active compound

A German-Austrian team led by Friedrich Schiller University Jena and Leibniz-HKI has been able to biochemically demonstrate for the first time that different types of mushrooms produce the same mind-altering active substance, psilocybin, in different ways.

Million-year-old skull could change human evolution timeline

A digital reconstruction of a million-year-old skull suggests humans may have diverged from our ancient ancestors 400,000 years earlier than thought and in Asia not Africa, a study said Friday.

Microsoft offers no-cost Windows 10 lifeline

Microsoft on Wednesday announced new options for US and European customers to safely extend the life of the Windows 10 operating system free of charge just days before a key deadline to upgrade to Windows 11.

IQ appears to affect ability to listen in noisy settings

You're in a bustling café with a friend. The din is making it hard to tune in to the conversation. The scenario might suggest you'd benefit from a hearing aid. On the other hand, new research suggests that speech-perception difficulty might relate to your cognitive ability.

Space-time doesn't exist, but it's a useful framework for understanding our reality

Whether space-time exists should be neither controversial nor even conceptually challenging, given the definitions of "space-time," "events" and "instants." The idea that space-time exists is no more viable than the outdated belief that the celestial sphere exists: both are observer-centered models that are powerful and convenient for describing the world, but neither represents reality itself.

Origins of the 'Ostrich Effect': Researchers pinpoint the age we start avoiding information—even when it's helpful

In a world of information overload, it can feel soothing to stick your head in the sand.

Spin may resolve century-old puzzle of light's momentum in matter

When you shine a flashlight into a glass of water, the beam bends. That simple observation, familiar since ancient times, hides one of the oldest puzzles in physics: what really happens to the momentum of light when it enters a medium?

Brain organoids reveal potential neural basis of schizophrenia and bipolar disorder

Pea-sized brains grown in a lab have for the first time revealed the unique way neurons might misfire due to schizophrenia and bipolar disorder, psychiatric ailments that affect millions of people worldwide but are difficult to diagnose because of the lack of understanding of their molecular basis.

First family statue of its kind discovered in ancient Egypt

A study appearing in The Journal of Egyptian Archaeology by Dr. Zahi Hawass and Dr. Sarah Abdoh describes a unique Egyptian family statue.

Older adults can bounce back to thriving health, study finds

A new Canadian study is offering a powerful message to older adults and those who care for them: it's never too late to bounce back. Researchers at the University of Toronto have found that nearly one in four older adults age 60 or older who reported poor well-being at the beginning of a national study—due to pain, health issues, low mood, or isolation—had regained optimal well-being within just three years.

Proven quantum advantage: Researchers cut the time for a learning task from 20 million years to 15 minutes

Amid high expectations for quantum technology, a new paper in Science reports a proven quantum advantage. In an experiment, entangled light has allowed researchers to learn a system's noise with very few measurements.

The gravitino: A new candidate for dark matter

Dark matter remains one of the biggest mysteries in fundamental physics. Many theoretical proposals (axions, WIMPs) and 40 years of extensive experimental searches have failed to provide any explanation of the nature of dark matter.

Sharp rise in memory and thinking problems among U.S. adults, study finds

A growing number of U.S. adults—particularly those under 40—are reporting serious challenges with memory, concentration and decision-making, according to a new study published in Neurology.

Why some US cities thrive while others decline: New study uncovers law of economic coherence of cities

A new study out of the Complexity Science Hub (CSH) reveals that, over 170 years of economic history, the transformation of U.S. cities follows a surprisingly stable rule: while cities evolve and diversify, they on average maintain a constant level of "coherence"—a measure of how well their economic activities fit together.

Information could be a fundamental part of the universe, and may explain dark energy and dark matter

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the bending of space and time.

Lipids found to play key role in immune process for clearing dead cells and microbes

LC3-associated phagocytosis (LAP) is a specialized process for degrading dead cells, microbes or other particles. It plays a role in innate immunity, inflammation regulation and anticancer responses. St. Jude Children's Research Hospital scientists have, for the first time, implicated lipids in the cellular mechanism that initiates LAP. The findings, published today in Nature Cell Biology, shed light on how this process begins and its potential to influence tumor immunity.

People's neural responses while watching videos predict whether they will become friends in the future, study finds

Throughout the course of their lives, people typically encounter numerous other individuals with different interests, values and backgrounds. However, not all these individuals will become their good friends, life partners, or meaningful people in their lives.

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