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Aujourd’hui — 25 février 2020ScienceDaily

Why monkeys choose to drink alone

Why do some people almost always drop $10 in the Salvation Army bucket and others routinely walk by? One answer may be found in an intricate and rhythmic neuronal dance between two specific brain regions, finds a new study.

Scientists call on government to increase ambition to save our ocean

A team of marine scientists from across the UK has called on the Government to increase its ambition to save the oceans by overhauling its approach to marine conservation management.

Allergists encourage parents of food-allergic kids to recognize their own anxiety

Allergists in the study said thoughtful and balanced communication and having credible information to share with your child go a long way toward helping your child with fears about their food allergy.

Reducing nutrient pollution helps coral resist bleaching

Coral reefs are not doomed. Although human activities threaten the iconic ecosystems in many different ways, scientists maintain that reefs can continue to thrive with the right assistance.

An 'exceptionally stable' single-atom catalyst

Scientists have shown that single platinum atoms trapped in C12A7 crystals act as a stable and effective catalyst for the hydrogenation of nitroarenes, an essential process in the production of many kinds of fine chemicals. Their approach could become a versatile route for developing other single-atom catalysts for wide-ranging industrial applications.

New study offers clues to origin of laws

A new study found that despite living in separate countries and legal codes separated by thousands of years, people have a universal intuition about whether a punishment fits a crime.

Supplementing diet with amino acid successfully staves off signs of ALS in pre-clinical study

The addition of dietary L-serine, a naturally occurring amino acid necessary for formation of proteins and nerve cells, delayed signs of amyotrophic lateral sclerosis (ALS) in an animal study.

Validating Toolbox to evaluate cognitive processing in people with intellectual disability

Researchers have updated and validated a series of tests in the NIH Toolbox Cognitive Battery. These tests, delivered on an iPad, can now be used to accurately assess cognitive processing in people with intellectual disability.

Best method to teach children augmented reality

Researchers have identified the best approach to help children operate augmented reality (AR). According to computer science experts, a major barrier into wider adoption of the technology for experiential learning is based on AR designs geared toward adults that rely on voice or gesture commands. By conducting in-classroom testing among elementary school students, researchers uncovered that AR programs are best delivered using controller commands, followed by programs that communicate with age-specific language.

Lava flows tell 600-year story of biodiversity loss on a tropical island

A natural experiment created by an active volcano gives new insight into the long-term negative impacts of human colonization of tropical forest islands.

Noninvasive, self-adhesive sensor predicted worsening heart failure in veterans

A removable, noninvasive, self-adhesive sensor successfully predicted worsening heart failure and the need for hospitalization in veterans several days before hospitalization occurred. The researchers used machine learning to analyze the data provided remotely by the sensor to detect if, and when, a patient's heart failure was worsening.

Quadrupling turbines, US can meet 2030 wind-energy goals

The United States could generate 20% of its electricity from wind within 10 years, without requiring any additional land, according to new research.
Hier — 24 février 2020ScienceDaily

Want to catch a photon? Start by silencing the sun

Researchers have created a 3D imaging system that uses light's quantum properties to create images 40,000 times crisper than current technologies, paving the way for never-before seen LIDAR sensing and detection in self-driving cars, satellite mapping systems, deep-space communications and medical imaging of the human retina.

Design of the W7-X fusion device enables it to overcome obstacles

Advanced design of the world's largest and most powerful stellarator demonstrates the ability to moderate heat loss from the plasma that fuels fusion reactions.

Too much of a good thing may lead to too much of a liver as well

Researchers suggest that prolonged exposure to a pair of antioxidant proteins may contribute to enlargement of the liver and fatty liver diseases.

Let it snow: Quantifiable observation of cloud seeding

Scientists found that cloud seeding in the Idaho mountains produced a total of about 235 Olympic-sized swimming pools' worth of water.

How cancer cells stiff-arm normal environmental cues to consume energy

Using human lung cancer cells, researchers have uncovered how cells in general modulate their energy consumption based on their surroundings and, furthermore, how cancer cells override those cues to maximize energy use.

Defects add color to quantum systems

Researchers are investigating light-emitting defects in materials that may someday form the basis of quantum-based technologies, such as quantum computers, quantum networks or engines that run on light. Once understood, these defects can become controllable features.

'Grand Challenge' review stresses global impact of microplastics

Microplastics are not just an ocean problem.

Modern technology reveals old secrets about the great, white Maya road

The first lidar study of the 100-kilometer stone highway that connected the ancient cities of Cobá and Yaxuná on the Yucatan Peninsula 13 centuries ago may shed light on the intentions of Lady K'awiil Ajaw, the warrior queen who an anthropologist believes commissioned its construction at the turn of the 7th century.

Shining a new light on biomimetic materials

Researchers have merged optical, chemical and materials sciences to utilize light to control the local dynamic behavior within a hydrogel, much like the ability of the iris and pupil in the eye to dynamically respond to incoming light.

Swarming robots avoid collisions, traffic jams

Researchers have developed the first decentralized algorithm with a collision-free, deadlock-free guarantee and validated it on a swarm of 100 autonomous robots in the lab.

Social determinant screening not enough to capture patients at risk of utility shut-off

Researchers have found that only a fraction of patients at risk of having their utilities shut off were identified through social determinants of health (SDOH) screening. The research showed that among the patients who received a utility protection letter in 2018, 70% were screened for SDOH and only 16% screened positive for difficulty paying their utility bills.

A promising new strategy to help broken bones heal faster

To improve how broken bones heal in people with diabetes, researchers are leading work to develop an affordable oral therapy -- grown in plants.

Ancient DNA from Sardinia reveals 6,000 years of genetic history

A new study of the genetic history of Sardinia, a Mediterranean island off the western coast of Italy, analyzed genome-wide DNA data for 70 individuals from more than 20 Sardinian archaeological sites spanning roughly 6,000 years from the Middle Neolithic through the Medieval period.

Releasing brakes: Potential new methods for Duchenne muscular dystrophy therapies

Testing of small molecules in mouse models for Duchenne muscular dystrophy shows promise for restoration of muscle structure and function.

Researchers end decade-long search for mechanical pain sensor

Researchers have discovered that a protein found in the membrane of our sensory neurons are involved in our capacity to feel mechanical pain, laying the foundation for the development of powerful new analgesic drugs.

Antibodies: The body's own antidepressants

Antibodies can be a blessing or a curse to the brain -- it all depends on their concentration.

'Make two out of one' -- division of artificial cells

Scientists uncover a novel and generic mechanism for the division of artificial cells into two daughter cells.

Technology in higher education: learning with it instead of from it

Technology has shifted the way that professors teach students in higher education. For example, by uploading recorded lectures online, students can reference a digital copy of the topics discussed in class. However, lecture-based teaching traditionally leaves students as consumers of information solely with little room for student creativity or interaction.