dimanche 4 août 2024

SCIENCES ENERGIES ENVIROINNEMENT

 Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 31:

New study finds people alter their appearance to suit their names

A new study has found that people tend to alter their appearance to suit their names. The researchers sought to determine whether parents choose a baby name based on what seems fitting for the baby's appearance, or if individuals' facial appearances change over the years to align with the social stereotypes associated with their names.

Monarch butterflies need help, and research shows a little bit of milkweed goes a long way

Monarch butterflies, with their striking orange and black wings, are some of the most recognizable butterflies in North America. But they're in trouble.

Retreating Andean rocks signal the world's glaciers are melting far faster than predicted, report scientists

Rocks recently exposed to the sky after being covered with prehistoric ice show that tropical glaciers have shrunk to their smallest size in more than 11,700 years, revealing the tropics have already warmed past limits last seen earlier in the Holocene age, researchers from Boston College report in the journal Science.

A higher-dimensional model can help explain cosmic acceleration without dark energy

Dark energy remains among the greatest puzzles in our understanding of the cosmos. In the standard model of cosmology called the Lambda-CDM, it is accounted for by adding a cosmological constant term in Einstein's field equation first introduced by Einstein himself. This constant is very small and positive and lacks a complete theoretical understanding of why it has such a tiny value. Moreover, dark energy has some peculiar features, such as negative pressure and does not dilute with cosmic expansion, which makes at least some of us uncomfortable.

Complex life on Earth began around 1.5 billion years earlier than previously thought, new study claims

Environmental evidence of the very first experiments in the evolution of complex life on Earth, has been uncovered by an international team of scientists.

Scientists solve mystery of DNA damage detection and repair caused by sunlight, alcohol, and pollution

A collaboration between researchers at the Laboratory of Medical Sciences (LMS) in London and the Laboratory of Molecular Biology (LMB) in Cambridge, has solved a decades-old mystery which could pave the way to better cancer treatments in the future.

Discovery sheds light on the origins of matter in the early universe

The early universe was 250,000 times hotter than the core of our sun. That's far too hot to form the protons and neutrons that make up everyday matter. Scientists recreate the conditions of the early universe in particle accelerators by smashing atoms together at nearly the speed of light.

520-million-year-old worm fossil solves mystery of how modern insects, spiders and crabs evolved

A new study led by researchers at Durham University have uncovered an incredibly rare and detailed fossil, named Youti yuanshi, that gives a peek inside one of the earliest ancestors of modern insects, spiders, crabs and centipedes. The study is published in the journal Nature.

Recent volcanic 'fires' in Iceland began with vast magma pooling just beneath the surface, scientists report

Scientists from UC San Diego's Scripps Institution of Oceanography have detected geochemical signatures of magma pooling and melting beneath the subsurface during the "Fagradalsfjall Fires," that began on Iceland's Reykjanes peninsula in 2021.

One type of non-statin cholesterol-lowering drug linked to lower liver cancer risk

Past studies have suggested that taking cholesterol-lowering statin drugs may lower individuals' risk of developing liver cancer. In a new study of non-statin cholesterol-lowering medications, one type was linked to lower risks of liver cancer. The findings are published by Wiley online in Cancer.

Old videos of chimpanzees suggest they are capable of speech

A small team of speech specialists and psychologists from Sweden, the U.K. and Switzerland has found, via study of old videos, that at least three chimpanzees had learned to speak human words, suggesting that the animals are capable of learning this ability given the right circumstances. The work is published in the journal Scientific Reports.

New study simulates gravitational waves from failing warp drive

Imagine a spaceship driven not by engines, but by compressing the spacetime in front of it. That's the realm of science fiction, right? Well, not entirely. Physicists have been exploring the theoretical possibility of "warp drives" for decades, and a new study published in the Open Journal of Astrophysics takes things a step further—simulating the gravitational waves such a drive might emit if it broke down.

Is that glass bottle of orange juice better for the planet than a plastic container?

Which packaging type for a 12-ounce, single-serve container of orange juice would you choose as the most sustainable option:

Gut microbes implicated in bladder cancer

At any given time, over 10 trillion microbes call our guts their home. From breaking down nutrients in our food to strengthening our immunity against pathogens, these microbes play an essential role in how we interact with the world. This includes—as shown in a new study by EMBL researchers and collaborators at the University of Split, Croatia—the way the body responds to carcinogens and develops cancer. The research is published in the journal Nature.

The major Atlantic current that keeps Northern Europe warm could have new variations and tipping points

Northern Europe is relatively warm given its place on the globe. For example, although north of most major Canadian cities, London is warmer than all of them (even Vancouver in British Columbia). But this warmth could disappear by the turn of the century thanks to global warming.

New DNA analysis helps bust 200-year-old royal conspiracy theory

A new genetic analysis by an international team of scientists has helped bust a popular 200-year-old myth surrounding Kaspar Hauser, whose identity became one of the most mysterious riddles in German history. The study is published in iScience as a pre-proof paper.

Timber plantations near urbanized areas support the movement of small and medium-sized terrestrial mammals

In the fight to mitigate climate change and deforestation in the tropics, timber plantations have emerged as a promising strategy for reforesting degraded land and connecting patches of natural forest. Often, these are species with commercial value for landowners but are not native to the region.

Analysis suggests gun permits may be more effective than background checks alone at reducing firearm homicides

Despite widespread support, laws enforcing universal background checks at the time of firearm purchase may not be enough to move the needle on reducing shooting deaths in the United States.

Using a drone to release mosquitoes infected with deadly bacteria into the wild

An international team of infectious disease researchers with the World Mosquito Program, working with colleagues from WeRobotics, has developed a way to release large numbers of mosquitoes infected with a mosquito-killing bacteria into the wild much more efficiently than current methods.

Massive solar wind disturbance caused Earth's magnetosphere to fly without its usual tail

Like a supersonic jet being blasted with high-speed winds, Earth is constantly being bombarded by a stream of charged particles f

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