mardi 30 juillet 2024

SCIENCES ENERGIES ENVIRONNEMENT









 Dear olivier hartmanshenn,


Here is your customized Science X Newsletter for week 30:


Most of the glyphosate in European rivers may not come from farming, researchers suggest

A research team at the University of Tübingen has found that most glyphosate that ends up in European rivers likely does not come from herbicides, as previously assumed; instead, it may be the result of additives to detergents.


Researchers record first-ever images and data of a shark being struck by a boat

Hours after tagging an endangered basking shark off the coast of Ireland in April, researchers captured what they believe is the first ever video of a shark or any large marine animal being struck by a boat.


Female whale shark with satellite transmitter for record-breaking four years shows consistent migrations

A team of researchers at the University of Rhode Island and Nova Southeastern University in Florida have been tracking a 26-foot endangered whale shark—named "Rio Lady"—with a satellite transmitter for more than four years—a record for whale sharks and one of the longest tracking endeavors for any species of shark.


There's a new top fish of the Columbia River, and it doesn't mind the warm water

There is a new king of the Columbia. Each spring, a chrome tide of fish native to the East Coast floods the Northwest's mightiest river by the millions. Shad, not salmon, are thriving in the warm, still water created by hydroelectric dams throughout the Columbia River Basin.


Perseverance rover discovers rock with potential signs of ancient life

A vein-filled rock is catching the eye of the science team of NASA's Perseverance rover. Nicknamed "Cheyava Falls" by the team, the arrowhead-shaped rock contains fascinating traits that may bear on the question of whether Mars was home to microscopic life in the distant past.


New study links brain microstructure to gender differences in mental health

A team of neuroscientists and behavioral specialists affiliated with several institutions in the U.S., working with one colleague from New Zealand and another from Canada, has found differences between male and female brain structure in areas associated with decision-making, memory processing and handling emotions.


Astrophysicists uncover supermassive black hole/dark matter connection in solving the 'final parsec problem'

Researchers have found a link between some of the largest and smallest objects in the cosmos: supermassive black holes and dark matter particles.


Trees reveal climate surprise: Microbes living in bark remove methane from the atmosphere

Tree bark surfaces play an important role in removing methane gas from the atmosphere, according to a study published 24 July in Nature.


New study disputes Hunga Tonga volcano's role in 2023–24 global warm-up

New research from a collaborative team featuring Texas A&M University atmospheric scientist Dr. Andrew Dessler is exploring the climate impact of the 2022 Hunga Tonga volcano eruption and challenging existing assumptions about its effects in the process.


Metallic minerals on the deep-ocean floor split water to generate 'dark oxygen,' new study finds

An international team of researchers, including a Northwestern University chemist, has discovered that metallic minerals on the deep-ocean floor produce oxygen—13,000 feet below the surface.


Rare rodent prefers an invasive noxious weed over native vegetation, study finds

In a twist to the native animal survival story, new research shows that a threatened rodent that only survives on offshore islands prefers one of Australia's most invasive weeds for food and shelter.


'New El Niño' discovered south of the equator

A small area of the southwestern Pacific Ocean, near New Zealand and Australia, can trigger temperature changes that affect the entire Southern Hemisphere, a new study has found.


Dark matter flies ahead of normal matter in mega galaxy cluster collision

Astronomers have untangled a messy collision between two massive clusters of galaxies in which the clusters' vast clouds of dark matter have decoupled from the so-called normal matter. The two clusters each contain thousands of galaxies and are located billions of light-years away from Earth.


Genetic diagnostics of ultra-rare diseases: Large multicenter study identifies 34 new genetic diseases

The majority of rare diseases have a genetic cause. The underlying genetic alteration can be found more and more easily, for example, by means of exome sequencing (ES), leading to a molecular genetic diagnosis. ES is an examination of all sections of our genetic material (DNA) that code for proteins. As part of a Germany-wide multicenter study, ES data was collected from 1,577 patients and systematically evaluated.


Dual action antibiotic could make bacterial resistance nearly impossible

A new antibiotic that works by disrupting two different cellular targets would make it 100 million times more difficult for bacteria to evolve resistance, according to new research from the University of Illinois Chicago.


Two shark species documented in Puget Sound for first time

Oregon State University researchers have made the first scientific confirmation in Puget Sound of two distinct shark species, one of them critically endangered.


Study links sequence variants to DNA methylation and diseases

A new study by scientists at deCODE Genetics shows that sequence variants drive the correlation between DNA methylation and gene expression. The same variants are linked to various diseases and other human traits.


A cave discovered on the moon opens up new opportunities for settlement by humans

Almost 55 years after the launch of Apollo 11—the first mission to land humans on the moon—scientists have found evidence of a large cave system near the landing site of those astronauts.


Research confirms that ancient Tasmania was not a 'wilderness,' but an indigenous cultural landscape

Recent studies led by the University of Melbourne have revealed that the Palawa people's ancient land stewardship techniques have profoundly shaped the landscape of western Lutruwita, within the traditional territories located in Tasmania.


Twisted carbon nanotubes could achieve significantly better energy storage than advanced lithium-ion batteries

An international team of scientists, including two researchers who now work in the Center for Advanced Sensor Technology (CAST) at UMBC, has shown that twisted carbon nanotubes can store three times more energy per unit mass than advanced lithium-ion batteries. The finding may advance carbon nanotubes as a promising solution for storing energy in devices that need to be lightweight, compact, and safe, such as medical implants and sensors. The research was published recently in the jou



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