Phys.org news
Phys.org / Gut bacteria may influence social behavior through smell
In a new study, Northwestern University neurobiologists discovered that gut bacteria and the nose work together to shape social behavior in mice, including who fights and who backs down. Using a combination of genetic and ...
Phys.org / Global human population is pushing Earth past its breaking point
Earth has already exceeded its ability to support the global population sustainably, with new research warning of increasing pressure on food security, climate stability, and human well-being. However, slowing population ...
Phys.org / Recovery from sudden permafrost collapse ranges from 10 years to a century, study suggests
Some Arctic regions regain their "greenness" within a decade of a sudden permafrost collapse, while others can take a century or more to recover, researchers report in a new study. The difference is directly related to each ...
Phys.org / Earth formed from material exclusively from the inner solar system, planetary scientists show
Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have come from the outer solar ...
Phys.org / Sacrifice before the cataclysm: The aromas of Pompeii's household altars
The destruction of Pompeii preserved ash residues on the household altars of its inhabitants. An international research team has scientifically investigated for the first time what was burned in Roman incense burners from ...
Phys.org / Scientists solve 40-year-old biological mystery behind sleeping sickness
To survive in the human bloodstream, the African trypanosome parasite wears a "cloak" made of proteins known as a variant surface glycoprotein (VSG). The study, published in Nature Microbiology, identifies the protein that ...
Phys.org / Quantum twisting microscope reveals electron-electron interactions in graphene at room temperature
An international team of researchers built a highly sensitive quantum microscope and used it to directly observe, for the first time at room temperature, how electrons subtly interact with each other in graphene—confirming ...
Phys.org / Nanoparticles can genetically modify several human cell types
In a demonstration that could help pave the way for gene therapies with fewer side effects, several human cell types have been genetically modified with protein nanoparticles designed at University of Michigan Engineering ...
Phys.org / Cornerstone model of evolutionary biology built on math flaw, study argues
New research is significantly revising a widely cited evolutionary model, the Inhibitory Cascade Mode (ICM). Benjamin Auerbach, professor in the Department of Ecology and Evolutionary Biology at the University of Tennessee, ...
Phys.org / Next-generation optical sensor can read photon spin across UV-to-infrared wavelengths
A research team led by Professor Jiwoong Yang of the Department of Energy Science and Engineering at DGIST has developed next-generation optical sensor technology capable of precisely detecting not only the intensity and ...
Phys.org / Cyclic catalysts use sunlight and air to regenerate during pharma ingredient synthesis
In chemical processes for producing pharmaceuticals, catalysts are a core technology that determines production speed and cost. However, until now, there has been a trade-off between "precise but disposable catalysts" and ...
Phys.org / Tasmanian tiger lives on in Arnhem Land rock art
The striped dog-like marsupial we know as the Tasmanian tiger has long been surrounded by mystery, and the subject of scientific curiosity. Now, newly discovered rock art depicting Tasmanian tigers and Tasmanian devils in ...
