Phys.org news

Phys.org / When mitochondria grow abnormally long, leaked RNA may activate anti-tumor immune responses

Researchers from the University of Osaka have demonstrated that mitochondrial hyperfusion, when induced by low levels of DRP1 or cellular stress, activates an immune response through the RIG-I–MAVS pathway. Dependent on the ...

2 hours ago
Phys.org / Synthetic chemical framework can switch magnetic spin states at near ambient temperatures

There is growing demand for smart materials that can change their physical properties in response to various external stimuli such as light, heat, pressure, magnetic fields and electric fields. One such physical property ...

2 hours ago
Phys.org / Great Barrier Reef drilling reveals repeated collapse, regrowth and migration since last ice age

An international expedition including University of Sydney researchers has pieced together the clearest picture yet of how the Great Barrier Reef responded to dramatic environmental change over the past 30,000 years. Multiple ...

1 hour ago
Phys.org / Why Europe's rising plant diversity may signal habitat disruption, not ecological recovery

The number of plant species in many ecosystems in Europe has grown rather than shrunk over the last 100 years. However, this is not necessarily cause for celebration, as this local increase is primarily due to generalists ...

2 hours ago
Phys.org / Gold-laced nanoparticles could eventually spot and treat endometriosis without surgery

Endometriosis is a painful, common condition affecting women worldwide, but treatment and diagnosis options are scarce. A new University of Mississippi-led study may have found an answer to both problems.

2 hours ago
Phys.org / New superconductors identified, unlocking process that could yield thousands more

An international team of quantum researchers has shown how machine learning can be used to filter a practically infinite number of possible material combinations to identify candidates for superconductivity. Thanks to the ...

3 hours ago
Phys.org / Solar storms leave their mark on cosmic rays that reach Earth

A new study has revealed an unexpected link between solar storms and the flux of high-energy cosmic rays arriving at Earth. The findings, made using one of the world's largest cosmic ray detectors, could open up a new way ...

5 hours ago
Phys.org / Analyzing avalanches on asteroid Vesta offers new method for understanding regolith processes

A study conducted at the Institut de Physique du Globe de Paris uses images from NASA's Dawn mission and a Bayesian inversion of the Hapke photometric model to analyze avalanches and ejecta deposits on the asteroid Vesta. ...

3 hours ago
Phys.org / Structural blueprint for RNA therapeutics reveals why some siRNA molecules work better than others

RNA interference is a natural mechanism for living cells to control whether specific genes are being used. Crowned with the 2006 Nobel Prize in Physiology or Medicine, the discovery of RNA interference has since been harnessed ...

1 hour ago
Phys.org / Light-activated compound kills antibiotic-resistant bacteria by turning its own defense enzyme against it

Antibiotic resistance is becoming an accelerating crisis because of the overuse and misuse of antibiotics over many years. The problem is exacerbated when antibiotics wipe out susceptible bacteria but leave resistant bacteria ...

6 hours ago
Phys.org / There may be 3 times more insect species than previously thought

A new estimate of insect species globally finds that there may be 8 million to 14 million more species than people thought, with few of them discovered.

3 hours ago
Phys.org / Giraffes combine quantities similarly to addition

In addition to humans, some species of primates and birds have demonstrated under experimental conditions their ability to manipulate quantities in tasks that require combining or separating them, in a manner similar to addition ...

6 hours ago