Phys.org news

Phys.org / Opposing forces in cells could hold clues to treating disease

A newly revealed molecular tug-of-war may have implications for better understanding how a multitude of diseases and disorders—including cancers, neurodegenerative diseases and immune disorders—originate, as well as how ...

10 hours ago in Biology
Phys.org / How owl leftovers became the perfect home for ancient baby bees

About 20,000 years ago, a family of owls lived in a cave. Sometimes, they would cough up owl pellets containing the bones of their prey, which landed on the cave floor. And, researchers have just discovered, ancient bees ...

4 hours ago in Biology
Phys.org / Webb observes pulsar-orbiting planet whose composition defies explanation

Scientists using NASA's James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system, whose atmospheric composition challenges our understanding of how it formed.

11 hours ago in Astronomy & Space
Phys.org / Surface-engineered ZnO nanocrystals tackle perfluoroalkyl substance contamination

Perfluoroalkyl substances (PFASs), a large class of synthetic chemicals, are valued for their ability to withstand heat, water, and oil. These materials are used in the production of everyday as well as industrial items. ...

10 hours ago in Nanotechnology
Phys.org / New method enables precise fluorine addition to drug-like molecules in one step

Fluorine is critical for biomedicine. This element can help drug compounds be more potent and last longer in the body, and its radioactive isotope, fluorine-18, powers medical imaging techniques such as positron emission ...

10 hours ago in Chemistry
Phys.org / How pointing fingers shape what we see in old master paintings

One of the most common human gestures, the pointing finger, appears frequently in Old Master paintings as a guiding cue. However, its influence on viewers' gaze has never been systematically investigated. Researchers in experimental ...

11 hours ago in Other Sciences
Phys.org / Uncovering early embryonic communications using new stem cell model

From the moment an embryo starts to take shape, two-way communication is critical for making sure tissues and organs develop correctly.

11 hours ago in Biology
Phys.org / Dazzling cosmic jet reveals time-stamped history of star birth

An international team of astronomers has uncovered the most unmistakable evidence yet that the powerful jets launched by newborn stars reliably record a star's most violent growth episodes, confirming a long-standing model ...

12 hours ago in Astronomy & Space
Phys.org / How bubbles may speed up CO₂ uptake by the ocean

A new study provides evidence that the ocean may have absorbed as much as 15% (0.3–0.4 Pg C yr-1) more CO2 than previously thought, requiring a re-think of future CO2 flux assessments and global climate models.

11 hours ago in Earth
Phys.org / Remote Southern Ocean seabirds study highlights reach of 'forever chemicals'

Seabirds in one of the remotest parts of the planet are being exposed to a wide range of forever chemicals, scientists have discovered.

11 hours ago in Earth
Phys.org / How cells survive oxidative stress and ferroptosis

EPFL scientists have identified a molecular pathway that protects cells from lipid oxidation and ferroptosis, a regulated form of cell death involved in aging and several diseases.

11 hours ago in Biology
Phys.org / ROSE-3D advances isotropic 3D super-resolution microscopy

In a study published in Nature Methods on December 2, a research team led by Profs. Xu Tao and Ji Wei from the Institute of Biophysics of the Chinese Academy of Sciences has developed a three-dimensional interferometric localization ...

11 hours ago in Biology