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Hier — 18 février 2020Infos - Sciences - English

Industrial Revolution Pollution Found in Himalayan Glacier

Ice cores from a Tibetan glacier reveal the first deposits of Industrial Revolution pollution starting in layers deposited in about 1780.

-- Read more on ScientificAmerican.com

Mount Shishapangma.

Western diet rich in fat and sugar linked to skin inflammation

Dietary components, rather than obesity itself, may lead to skin inflammation and the development of psoriasis, a study has found.

Wall Street investors react to climate change

Institutional investors are factoring climate risks into their investment decisions.

Hardy microbe’s DNA could be a time capsule for the ages

Artist and DNA storage pioneer says microbes entombed in salt could preserve a lasting record of humanity

Empathy can be detected in people whose brains are at rest

Researchers have found that it is possible to assess a person's ability to feel empathy by studying their brain activity while they are resting rather than while they are engaged in specific tasks.

Physicists see nuclear wobbling in one isotope of gold

Researchers recently discovered that some nuclei wobble on their intermediate axes. 

How low oxygen levels in the heart predispose people to cardiac arrhythmias

Low oxygen levels in the heart have long been known to produce life-threatening arrhythmias, even sudden death. Until now, it was not clear how. New findings reveal the underlying mechanism for this dangerous heart disorder.

Warming oceans are getting louder

One of the ocean's loudest creatures is smaller than you'd expect -- and will get even louder and more troublesome to humans and sea life as the ocean warms, according to new research.

Green approach accelerates process optimization and retrieval of 'switchable' solvents

Researchers have demonstrated a new, green technology for both accelerated screening and retrieving 'switchable' solvents used in green chemistry applications. The new approach makes the screening process hundreds of times faster and drastically accelerates the rate at which solvents can be retrieved from solution.

Memory games: Eating well to remember

A healthy diet is essential to living well, but should we change what we eat as we age? Researchers have found strong evidence of the link between food groups and memory loss and its comorbidities. Her findings point to a need for age-specific dietary guidelines as the links may vary with age -- people aged 80+ with a low consumption of cereals are at highest risk of memory loss and comorbid heart disease.

Masking the memory of fear: Treating anxiety disorders such as PTSD with an opioid

While fear memory -- or the ability to remember contexts in which to be afraid -- is important for survival, too much of it, and an inability to forget contexts that no longer apply, hinders daily activities. Recently, scientists found that a certain opioid drug can help mask some fear memory without causing undesirable side effects. This could make new therapies possible for anxiety disorders like phobias or PTSD.

New biochemical compound breaks down environmental pollutants

Researchers discover a new biochemical compound that can break down environmental pollutants.

How malaria detects and shields itself from approaching immune cells

Malaria parasites can sense a molecule produced by approaching immune cells and then use it to protect themselves from destruction, according to new findings.

Crops provide chimpanzees with more energy than wild foods

A new study has found that cultivated foods offer chimpanzees in West Africa more energetic benefits than wild foods available in the region. The findings have made a significant development for our further understanding into human-primate coexistence and can help to inform conservation efforts for future improvement, particularly in locations where agricultural expansion is encroaching on tropical forests.

B cells may travel to remote areas of the brain to improve stroke recovery

New research shows that the immune system may target other remote areas of the brain to improve recovery after a stroke.

Ancient plant foods discovered in Arnhem Land, Australia

The new study includes the earliest evidence of Homo sapiens use of plant foods outside Africa and the Middle East.

Risk factors for endometrial cancer

An analysis of 149 scientific studies has identified 24 genetic variants which predispose women to endometrial cancer.

Time of day affects global brain fluctuations

As the day progresses, the strength of the brain's global signal fluctuation shows an unexpected decrease, according to a new study.

Advance in next-generation lithium metal batteries

A research team has developed a way to address a major safety issue with lithium metal batteries - an innovation that could make high-energy batteries more viable for next-generation energy storage.

Simple, fuel-efficient rocket engine could enable cheaper, lighter spacecraft

Researchers have developed a mathematical model that describes how rotating detonation engines work.

Rules of life: From a pond to the beyond

Researchers have conducted experiments in the nutrient-poor Cuatro Cienegas Basin in Mexico. Their goal was to shed light on how fundamental features of an organism's genome -- its size, the way it encodes information, and the density of information -- affect its ability to thrive in an extreme environment.

Topological materials outperform through quantum periodic motion

Scientists have discovered that applying vibrational motion in a periodic manner may be the key to preventing dissipations of the desired electron states that would make advanced quantum computing and spintronics possible.

Oversight of fishing vessels lacking, new analysis shows

Policies regulating fishing in international waters do not sufficiently protect officials who monitor illegal fishing, the prohibited dumping of equipment, or human trafficking or other human rights abuses, finds a new analysis by a team of environmental researchers.

Until the End of Time tries to use physics to find the meaning of life

Brian Greene's new book argues that life is rare and extraordinary, probably transient, and that in the search for purpose, the only significant answers are ones we create  

Why coronavirus superspreaders may mean we avoid a deadly pandemic

The covid-19 virus may mostly be transmitted by superspreaders, which means it might be easier to contain the outbreak and prevent it going pandemic

The Arctic Is Getting Greener. That's Bad News for All of Us

Par : Matt Simon
From space and with drones, scientists are watching the Arctic get greener. That's troubling both for the region, and the planet as a whole.

ESO telescope sees surface of dim Betelgeuse

Using ESO's Very Large Telescope (VLT), astronomers have captured the unprecedented dimming of Betelgeuse, a red supergiant star in the constellation of Orion. The stunning new images of the star's surface show not only the fading red supergiant but also how its apparent shape is changing.

Stress in small children separated from their parents may alter genes

Several studies show that small children cared for outside the home, especially in poor quality care and for 30 or more hours per week, have higher levels of cortisol than children at home.

Reproductive genome from the laboratory

Researchers have for the first time developed a genome the size of a minimal cell that can copy itself.