Our immune system is always on alert, detecting and eliminating pathogens and cancer cells. Cellular control mechanisms cause diseased cells to present antigens on their surface like signs for the immune system. For analysis of the necessary complex antigen processing and transport processes in real time, researchers have developed a...
American diets got briefly healthier, more diverse during COVID-19 pandemic, study finds
American diets may have gotten healthier and more diverse in the months following the start of the COVID-19 pandemic, according to a new study.
New geological datings place the first European hominids in the south of the Iberian Peninsula 1.3 million years ago
One of the most important controversies about human evolution and expansion is when and by what route the first hominids arrived in Europe from the African continent. Now, geological dating techniques at the Orce sites (Baza basin, Granada, Spain) place the human remains found in this area as the oldest...
How domestic rabbits become feral in the wild
After sequencing the genomes of nearly 300 rabbits from Europe, South America, and Oceania, researchers found that all of them had a mix of feral and domestic DNA. They say this was not what they had expected to find.
Complex impact of large wildfires on ozone layer dynamics
In a revelation highlighting the fragile balance of our planet's atmosphere, scientists have uncovered an unexpected link between massive wildfire events and the chemistry of the ozone layer. Using satellite data and numerical modeling, the team discovered that an enormous smoke-charged vortex nearly doubles the southern hemispheric aerosol burden in...
2023 Rolling Hills Estates landslide likely began the winter before
Landslides triggered by intense rainfall can sometimes be predicted along with incoming storms, but dry-season landslides often take people by surprise. The July 2023 Rolling Hills Estates landslide that destroyed 12 homes seemed to come out of nowhere, but new research shows it began as early as December 2022. Researchers...
High and low tide cause low and high methane fluxes
Methane, a strong greenhouse gas that naturally escapes from the bottom of the North Sea, is affected by the pressure of high or low tide. Methane emissions from the seafloor can be just easily three times as much or as little, depending on the tide, according to a new study.
New ways to study spinal cord malformations in embryos
Scientists have successfully created mechanical force sensors directly in the developing brains and spinal cords of chicken embryos, which they hope will improve understanding and prevention of birth malformations such as spina bifida.
A better way to make RNA drugs
RNA drugs are the next frontier of medicine, but manufacturing them requires an expensive and labor-intensive process that limits production and produces metric tons of toxic chemical waste. Researchers report a new, enzyme-based RNA synthesis method that can produce strands of RNA with both natural and modified nucleotides without the...
Researchers develop a way to make lifesaving phages accessible, transportable and much easier to use
Researchers have developed a simple way to bring bacteriophage therapy into much closer reach for clinicians struggling to save patients with antimicrobial-resistant infections. The technology makes it possible to sort through hundreds or even thousands of phages in less than two hours to identify which will respond to a particular...