Skip to main content

Phys.org

During El Niño, a perfect storm of weather systems could spell disaster for the Great Barrier Reef

2 days 14 hours ago
The strong El Niño currently under way in the Pacific Ocean raises the specter of marine heat waves and coral bleaching once again threatening Australia's iconic Great Barrier Reef. And now new research has revealed the complex interplay of atmospheric patterns and weather systems thousands of kilometers apart that can combine in a recipe potentially fatal for coral reefs.

Optical imaging links altered metabolism and oxygen use in Alzheimer's disease

2 days 17 hours ago
Alzheimer's disease is best known for its effects on memory and cognition, but the disease also involves changes in how brain cells produce and use energy. Mitochondria, the structures that supply much of a cell's energy, can become dysfunctional in Alzheimer's disease. At the same time, changes in blood flow and oxygen availability may place additional demands on brain tissue. Understanding how these processes interact could help researchers characterize metabolic changes that accompany the disease.

How animal identifiability affects children's food choices

2 days 23 hours ago
Naming a chicken and describing its favorite habits is enough to make preschoolers choose poultry less often. This effect translates into verbal declarations and actual meal choices, but food preferences still most often win over empathy, according to a new paper by researchers from SWPS University.

Political violence: How justifications influence voter approval

3 days ago
What happens when political violence is presented as a justified response to threat or injustice coming from an out-group? A study by Ursula Daxecker, director at the Max Planck Institute for Politics and Social Science in Göttingen, and Neeraj Prasad of the University of Amsterdam, published in The Journal of Politics, finds that legitimizing violence can increase public approval of both violence and the parties involved in it. Among BJP supporters, the effect went even further: when violence was portrayed as justified, they were less approving of a peaceful response by their own party.

Scientists uncover mystery of how snail shells coil to the right or to the left

3 days 2 hours ago
Scientists have discovered a gene that determines whether Japanese snails develop shells that are left- or right-coiling—with implications for understanding the underlying handedness of our own bodies. The researchers from the University of Nottingham and Tohoku University studied wild Euhadra snails in Japan to understand what makes one snail a mirror image of another.

Plants shift gene activity within minutes of entering spaceflight, experiment reveals

3 days 2 hours ago
Plants begin responding to spaceflight almost immediately after leaving Earth, according to a new University of Florida study that captured the earliest stages of biological adaptation during a commercial suborbital mission. Published in the journal npj Microgravity, the study reports the results of an experiment conducted by a UF astronaut during Blue Origin's New Shepard NS-26 flight on Aug. 29, 2024.

New 3D model reveals how shadows reshape chemistry in stellar nurseries

3 days 3 hours ago
How do young stars reshape the clouds from which they are born? A new high-resolution 3D model developed by an international team led by Dr Brandt Gaches from the University of Duisburg-Essen shows how the uneven structure of stellar nurseries creates shadows that alter their chemistry and influence the infrared emission observed by the James Webb Space Telescope. The model has now been published in Astronomy & Astrophysics.

New high-frequency method boosts 2D material readout for next-gen quantum computers

3 days 3 hours ago
Quantum computers represent a next step in the fast-paced evolution of technology. Using quantum bits (qubits), they have the potential to run certain calculations exponentially faster than conventional computers. However, developing and fine-tuning quantum computers requires an enormous number of repetitive tests. To accelerate quantum technology development, we need a method that can read quantum states at ultrafast speeds.

A highway instead of a racetrack: Strong coupling of light and sound in an optical fiber

3 days 4 hours ago
For the first time, scientists have achieved strong coupling between light and long-lived acoustic vibrations in an optical fiber. Optical fibers are used in both classical telecommunications and quantum communication and could serve not only as connections between computing nodes but also as quantum processors themselves in the future. The results, published in Nature Physics, pave the way for new technologies in quantum signal processing.

Judging strangers' preferences may actually be easier when they're less like our own

3 days 5 hours ago
Researchers already know that humans have a tendency to use egocentric anchoring—a cognitive bias in which people use their own preferences, beliefs and perspectives as a mental starting point (or anchor) to understand or predict what another person thinks, feels or prefers. This is not necessarily a sign of selfishness or self-importance, but a way for us to better understand others.
Checked
12 minutes 19 seconds ago
Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
Subscribe to Phys.org feed
#channel