Phys.org news
Phys.org / Polymers that crawl like worms: How materials can develop direction without being told where to go
Researchers at the University of Vienna have uncovered a surprising phenomenon: polymer chains with segments that simply fluctuate at different intensities can spontaneously develop directional, persistent motion when densely ...
Phys.org / How evolution shapes color diversity in coral reef fish
Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ocean? Why do coral reefs harbor such a wide range of stripes, spots and patterns? A study conducted ...
Dialog / Chemically tuning nanographene into topological spin chains and why the ends matter
When most people hear "polymer," they think of plastics. In our group, polymerization is a way to line up identical molecules like beads on a string and let quantum mechanics take over. Put magnetic building blocks in a one-dimensional ...
Phys.org / Ocean currents drive disease spread between oyster reefs: Research identifies restoration sites at risk
The European flat oyster (Ostrea edulis) was once widespread in the North Sea. However, overfishing, habitat destruction and infectious diseases pushed the species to the brink of extinction in some regions nearly one hundred ...
Phys.org / 3D imagery helps bring world's ant diversity to life
For more than a decade, Evan Economo's lab has been using micro-CT machines to scan insect specimens. The resulting X-ray images help researchers study the form and structure of insects—a subfield of entomology known as ...
Phys.org / Real-time imaging of microplastics in the body improves understanding of health risks
Microplastics (MPs), defined as plastic fragments with sizes ranging from millimeters (
Phys.org / ESA's Mars orbiters watch solar superstorm hit the red planet
What happens when a solar superstorm hits Mars? Thanks to the European Space Agency's Mars orbiters, we now know: glitching spacecraft and a supercharged upper atmosphere.
Phys.org / Flipped chromosomal segments drive natural selection, Atlantic silversides study shows
When a species lives in two distinct types of habitats, individuals with traits better suited to each habitat will thrive and reproduce, naturally selecting descendants with those traits. But what about mobile aquatic species ...
Phys.org / Paleontologists challenge use of bone growth rings to age crocodiles, dinosaurs
Do the bones of all Nile crocodiles have the same number of growth marks as their age? And can such growth rings be counted to accurately gauge the age of these reptiles? Is this also an accurate method to use when trying ...
Phys.org / Environmental sampling finds more poultry viruses than bird swabs in live markets
Scientists at Duke-NUS Medical School have found that viruses circulating in live poultry markets can be detected more effectively by sampling the surrounding environment than by testing individual birds. The study, published ...
Phys.org / Thermogenetics: How proteins are controllable by heat
Protein activity can be precisely regulated via subtle changes in temperature using heat-sensitive switches. Underlying this capability is a novel modular design strategy developed by researchers at the Institute of Pharmacy ...
Phys.org / Whole-genome study of koalas shows genetic diversity alone can misread extinction risk
A new study published in Science is challenging long-held assumptions about how we measure genetic risk in endangered species. Researchers analyzed whole genomes from hundreds of koalas, finding that populations previously ...
