lundi 19 août 2024

SCIENCES ENERGIES ENVIRONNEMENT

 Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 33:

Singing from memory unlocks a surprisingly common musical superpower

Psychologists from UC Santa Cruz wanted to study "earworms," the types of songs that get stuck in your head and play automatically on a loop. So they asked people to sing out any earworms they were experiencing and record them on their phones when prompted at random times throughout the day.

The next full moon is a supermoon blue moon

The next full moon is a supermoon, a blue moon; the sturgeon moon; the red, corn, green corn, barley, herb, grain, or dog moon; Raksha Bandhan or Rakhi Purnima; and Tu B'Av.

Earth hit by 'severe' solar storm

The Earth was hit Monday by an intense solar storm that could bring the northern lights to night skies further south than normal, a US agency announced.

Why isn't Colorado's snowpack ending up in the Colorado River? Research suggests it might be the lack of spring rainfall

The Colorado River and its tributaries provide water for hydropower, irrigation and drinking water in seven U.S. states and Mexico. Much of this water comes from the snowpack that builds up over the winter and then melts each spring. Every year in early April, water managers use the snowpack to predict how much water will be available for the upcoming year.

Study of fasting and ketogenic diet reveals a new vulnerability of pancreatic tumors

Scientists at UC San Francisco have discovered a way to get rid of pancreatic cancer in mice by putting them on a high fat, or ketogenic, diet and giving them cancer therapy.

Jamestown DNA helps solve a 400-year-old mystery and unexpectedly reveals a family secret

An ancient DNA (aDNA) study at the 17th-century English colony of Jamestown, Virginia, has identified two of the town's earliest settlers, and revealed an unexpected family secret.

Rare archaeological site reveals 'surprising' Neanderthal behavior at Pyrenees foothills

An unchartered area in the foothills of the Southern Pyrenees in Spain is providing insights into a poorly known period of Neanderthal history, offering clues that could help archaeologists uncover the mystery of their downfall, according to research from The Australian National University (ANU).

Newly discovered protein stops DNA damage

Researchers from Western University have discovered a protein that has the never-before-seen ability to stop DNA damage in its tracks. The finding could provide the foundation for developing everything from vaccines against cancer, to crops that can withstand the increasingly harsh growing conditions brought on by climate change.

New species of extinct walrus-like mammal discovered in the North Atlantic

A new discovery by a team of paleontologists, led by Dr. Mathieu Boisville (University of Tsukuba, Japan), has uncovered a new species of the extinct genus Ontocetus from the Lower Pleistocene deposits in the North Atlantic. This species, named Ontocetus posti, displays surprising similarities in feeding adaptations to the modern walrus (Odobenus rosmarus), highlighting an intriguing case of convergent evolution. The research is published in the journal PeerJ.

'Rare species' not seen in the area for 50 years spotted on Arizona trail camera

To ensure her trail cameras would stay operational during the hot Arizona summer, researcher Kinley Ragan trekked to 23 of them.

Photon entanglement could explain the rapid brain signals behind consciousness

Understanding the nature of consciousness is one of the hardest problems in science. Some scientists have suggested that quantum mechanics, and in particular quantum entanglement, is the key to unraveling the phenomenon.

DNA study challenges thinking on ancestry of people in Japan

A genetic study led by researchers from RIKEN's Center for Integrative Medical Sciences has uncovered evidence that people in Japan descend from three ancestral groups.

New analysis of Webb data measures universe expansion rate, finds there may not be a 'Hubble tension'

We know many things about our universe, but astronomers are still debating exactly how fast it is expanding. In fact, over the past two decades, two major ways to measure this number—known as the "Hubble constant" —have come up with different answers, leading some to wonder if there was something missing from our model of how the universe works.

Scientists pinpoint dino-killing asteroid's origin: past Jupiter

An intense debate surrounding the cosmic rock that killed the dinosaurs has stirred scientists for decades, but a new study has revealed some important—and far-out—data about the impactor's origin story.

'Mercury bomb' threatens millions as Arctic temperatures rise, study warns

The Yukon River flows west across Alaska toward the Bering Sea, eroding Arctic permafrost along its banks and transporting sediment downstream. Within that sediment lurks a toxic stowaway: mercury.

Waste into gold: Oyster shells repurposed as magic 'Seawool'

Growing up on Taiwan's west coast where mollusk farming is popular, Eddie Wang saw discarded oyster shells transformed from waste to function—a memory that inspired him to create a unique and environmentally friendly fabric called "Seawool".

Scientists achieve rapid upcycling of microplastics to graphene

James Cook University researchers have achieved a significant breakthrough that allows them to convert microplastics to a highly valuable material. The study is published in the journal Small Science.

AI accurately diagnoses genetic condition from facial photographs

A Yale School of Medicine team reports in a new study that an artificial intelligence (AI) model was able to reliably diagnose people living with Marfan syndrome from a simple facial photograph.

More toddler screen time brings more tantrums, study finds

Using tablets as "e-babysitters" for toddlers could lead to more tantrums, which in turn can have harried parents trying to calm a child by handing them a tablet, new research shows.

Chaos theory approach reveals long-distance relationship in seemingly random behavior of bowhead whales

Applying chaos theory to the movement of iconic arctic whales uncovered a 24-hour diving cycle and a long-range (~100 km) synchronization.


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