lundi 9 décembre 2024

SCIENCES ENERGIES ENVIRONNEMENT

 

lun. 9 déc. à 05:34

Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 49:

World's oldest known wild bird is expecting again, aged 74

Parenting can be tough, even for the young and energetic, but one elderly albatross is about to go through it all again—at the ripe old (and apparently record-setting) age of 74.

Rapid surge in global warming mainly due to reduced planetary albedo, researchers suggest

2023 set a number of alarming new records. The global mean temperature also rose to nearly 1.5 degrees Celsius above the preindustrial level, another record.

Research reveals how fructose in diet enhances tumor growth

Fructose consumption has increased considerably over the past five decades, largely due to the widespread use of high-fructose corn syrup as a sweetener in beverages and ultra-processed foods.

Countdown to an ice-free Arctic: Research warns of accelerated timelines

The first summer on record that melts practically all of the Arctic's sea ice, an ominous milestone for the planet, could occur as early as 2027.

Serious side effect of using CRISPR-Cas gene scissors uncovered: AZD7648 molecule can destroy parts of genome

Genome editing with various CRISPR-Cas molecule complexes has progressed rapidly in recent years. Hundreds of labs around the world are now working to put these tools to clinical use and are continuously advancing them.

Particle research gets closer to answering why we're here: Physicists outline next 10 years of neutrino research

Physicists soon will be closer than ever to answering fundamental questions about the origins of the universe by learning more about its tiniest particles.

New evidence of organic material identified on Ceres, the inner solar system's most water-rich object after Earth

Six years ago, NASA's Dawn mission communicated with Earth for the last time, ending its exploration of Ceres and Vesta, the two largest bodies in the asteroid belt. Since then, Ceres —a water-rich dwarf planet showing signs of geological activity— has been at the center of intense debates about its origin and evolution.

MRI could be key to understanding the impact a gluten free diet has on people with celiac disease

Experts have used magnetic resonance imaging (MRI) to better understand the impact a gluten free diet has on people with celiac disease, which could be the first step towards finding new ways of treating the condition.

Ancient maize samples in Brazilian caves suggest the crop's domestication may have been completed in South America

Brazilian scientists have determined that ancient specimens of partially domesticated maize (Zea mays, also known as corn) originally from Peruaçu Valley in Minas Gerais state (Brazil) were the farthest from Mexico, the plant's historic center of origin, of any finds made so far.

Neanderthals and modern humans must be classed as separate species to best track our origins, study claims

A new study published by researchers at London's Natural History Museum and Institute of Philosophy, KU Leuven has reinforced the claim that Neanderthals and modern-day humans (Homo sapiens) must be classed as separate species in order to best track our evolutionary history.

Ancient texts reveal how Mesopotamian humans experienced emotions in their bodies

From feeling heavy-hearted to having butterflies in your stomach, it seems inherent to the human condition that we feel emotions in our bodies, not just in our brains. But have we always felt––or at least expressed––these feelings in the same way?

Neuroscientists discover a new pathway to forming long-term memories in the brain

Researchers from Max Planck Florida Institute for Neuroscience have discovered a new pathway to forming long-term memories in the brain. Their work, published in Nature Neuroscience, suggests that long-term memory can form independently of short-term memory, a finding that opens exciting possibilities for understanding memory-related conditions.

Barbarian warriors in Roman times used stimulants in battle, findings suggest

Small, spoon-shaped objects found on the end of warriors' belts at archaeological sites across northern Europe could have been used to dispense stimulants before battle, a study suggests.

Scientists produce world's first carbon-14 diamond battery with potential lifespan of thousands of years

Scientists and engineers from the University of Bristol and the UK Atomic Energy Authority (UKAEA) have successfully created the world's first carbon-14 diamond battery.

Nutrients related to vitamin B12 influence microbial growth and reshape soil microbiomes, research finds

Communities of microbes (microbiomes), particularly in soils, can be startlingly diverse, with as many as 10,000 species in just a cup of material. Scientists are working to understand how microbiomes and their members respond to their environments. These processes can profoundly shape the properties and composition of soils.

Hubble takes closest-ever look at a quasar

Astronomers have used the unique capabilities of NASA's Hubble Space Telescope to peer closer than ever into the throat of an energetic monster black hole powering a quasar. A quasar is a galactic center that glows brightly as the black hole consumes material in its immediate surroundings.

World War One dazzle camouflage was not as well understood as it might have been, researchers suggest

Researchers from Aston University and Abertay University have found that World War One dazzle ships—vessels painted in a type of camouflage pattern to make it difficult for enemies to identify and destroy—weren't as effective as originally thought.

'Spooky action' at a very short distance: Scientists map out quantum entanglement in protons

Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and collaborators have a new way to use data from high-energy particle smashups to peer inside protons. Their approach uses quantum information science to map out how particle tracks streaming from electron-proton collisions are influenced by quantum entanglement inside the proton.

Climate-friendly farming: Scientists find feeding grazing cattle seaweed cuts methane emissions by almost 40%

Seaweed is once again showing promise for making cattle farming more sustainable. A study by researchers at the University of California, Davis, found that feeding grazing beef cattle a seaweed supplement in pellet form reduced their methane emissions by almost 40% without affecting their health or weight.

Experiment realizes quantum advantage in data storage with a photonic quantum processor

In recent years, quantum physicists and engineers have been trying to develop quantum computer processors that perform better than classical computers on some tasks. Yet conclusive demonstrations proving that quantum systems perform better than their classical counterparts (i.e., realizations of a quantum advantage) remain scarce, due to various experimental challenges.

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