Quantum Physics

New theoretical framework sets limits for the realization of quantum processes in spacetime

Bell's theorem, the well-known theoretical framework introduced by John Bell decades ago, delineates the limits of classical physical processes arising from relativistic causality principles. These are principles rooted in ...

Astronomy

Dutch students warn space mission of noisy white dwarfs

The background noise of gravitational waves from orbiting white dwarf stars will be stronger than the noise from binary black holes. This is what two Dutch master's students and their supervisor predict in two papers in anticipation ...

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Tech Xplore

Bursts of exercise boost cognitive function, neuroscientists find

Decades of exercise research data support the common view that steady workouts over the long haul produce not only physical benefits but also improved brain function. But what about single bursts of exercise? A team of scientists ...

Sun reaches maximum phase in 11-year solar cycle

In a teleconference with reporters on Tuesday, representatives from NASA, the National Oceanic and Atmospheric Administration (NOAA), and the international Solar Cycle Prediction Panel announced that the sun has reached its ...

Revealing the hidden universe with full-shell X-ray optics

The study of X-ray emission from astronomical objects reveals secrets about the universe at the largest and smallest spatial scales. Celestial X-rays are produced by black holes consuming nearby stars, emitted by the million-degree ...

Coral's resilience to warming may depend on iron

How well corals respond to climate change could depend in part on the already scarce amount of iron available in their environment, according to a new study led by Penn State researchers. The study reveals that the combination ...

Mosquitos lost an essential gene with no ill effects

University of Maryland entomologists discovered that a gene critical for survival in other insects is missing in mosquitos—the gene responsible for properly arranging the insects' segmented bodies. The researchers also ...

Breastfeeding hormones make mothers happier

Oxytocin is one of the most important hormones between a mother and her baby. Researchers at Kyoto University and Azabu University in Japan report in a new study that the levels of oxytocin correspond to a mother's sensitivity ...

Casting into the past helps reveal fishing's future

Intensive fishing and climate change pose an unprecedented threat to biodiversity in the world's oceans, but reconstructing how the past 500 years of human activity on the seas has transformed marine life could help to reveal ...

Saudi Arabia to unblock internet calling apps

Saudi Arabia will lift its ban on internet calling applications on Wednesday, authorities said, easing restrictions online as the conservative kingdom faces new criticism over censorship.

Could condors return to northern California?

In 2003, Northern California's Yurok Tribe initiated efforts to reintroduce California Condors on their lands. While wild condors have not existed in the region for more than a hundred years, a new study from The Condor: ...

Social environment matters for duck penis size

Most birds lack genitalia, but male ducks are known for their long, spiraling penises, which have evolved through an ongoing cat-and-mouse game with females. A new study from The Auk: Ornithological Advances looks at whether ...

How do human impacts on wetlands affect animals?

A new Biological Reviews study provides a comprehensive assessment of how changes to wetlands affect animals, and the authors use their findings to provide recommendations for managing wetlands to maximise their biodiversity.