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Phys.org / Genome-wide analysis uncovers clues to Faroese ancestral history

Genome sequencing has revealed insights into how current-day residents of the Faroe Islands can trace their ancestry to a North Atlantic founder population and how evolutionary forces have shaped their genomes since. The ...

17 hours ago
Phys.org / Female chickadees seek cognitively skilled males for extra‑pair matings, study shows

Female chickadees living in monogamous mating systems will proactively seek out males that have better cognitive skills than their nest mate, according to new findings.

16 hours ago
Phys.org / Rare B meson decays tighten search for hidden particles and dark matter links

A University of Melbourne researcher has placed the strongest constraints yet on certain rare decays of subatomic particles, narrowing the window for where new "hidden" particles could be lurking.

18 hours ago
Phys.org / Chemists uncover new metal carbene radical cross-coupling by merging two catalytic cycles

In an effort to open the door to new and useful products, chemistry researchers are on the continual lookout for processes that unlock important molecules and the bonds that can put them together. Such is the case for UC ...

15 hours ago
Phys.org / Heading for the Atlantic Ocean to study the impact of climate change on ocean circulation

It is becoming increasingly urgent to study the effects of climate change on the global ocean system. Future projections indicate significant changes in the Mediterranean and Atlantic circulation systems, which could have ...

10 hours ago
Phys.org / Intermolecular collisions may explain why organic radical fluids become unusually magnetic

Certain substances can become magnetic when exposed to an external magnetic field. Magnetic susceptibility measures how easily a material can be magnetized. Materials known as organic radicals have been noted to possess anomalously ...

17 hours ago
Phys.org / Data suggest 'red flag' laws are linked to sustained reductions in arrests

Individuals subject to extreme risk protection orders (ERPOs), or "red flag" laws, were significantly less likely to be arrested—including for violent and firearm-related offenses—while the orders were in effect than in the ...

17 hours ago
Medical Xpress / AI-guided ultrasound improves blood–brain barrier opening procedures by predicting bubble collapse

A study led by Georgia Institute of Technology's Associate Professor Costas Arvanitis takes a major step toward safer and more effective treatment and diagnosis of brain diseases. His team's research, published in Advanced ...

16 hours ago
Phys.org / Silicon-compatible nanocomposite garnet enables better, simpler optical isolators

A research team from Tohoku University and Kyocera Corp. has developed a new magneto-optical material—a nanocomposite magnetic garnet film—that can be deposited directly onto silicon substrates while delivering a magneto-optical ...

18 hours ago
Phys.org / A heat sensor for living cells could offer new views of cell metabolism, rapid antibiotic testing

When living cells grow, divide or respond to drugs, they give off tiny amounts of heat that offer information about what the cells are doing. But because these heat signals are so vanishingly small, they have traditionally ...

17 hours ago
Phys.org / Distant ocean temperatures found to influence snowfall in Antarctica

Snowfall deep inside East Antarctica has increased in recent decades, and distant ocean temperature changes may be partly responsible. Using long-term climate data and observations from Dome Fuji station, researchers found ...

19 hours ago
Phys.org / Honeybees adjust their dances based on information reliability, study reveals

A new study demonstrates that honeybees can evaluate the reliability of their own communication, actively adjusting the vigor of their "waggle dance" based on the truthfulness of the information they provide. By manipulating ...

19 hours ago