Phys.org news
Phys.org / Scientists solve 200-year-old puzzle of how tobacco plants make nicotine
Scientists have uncovered how tobacco plants naturally make nicotine, solving a mystery that has puzzled researchers for nearly two centuries. The discovery, published in Nature Communications, could lead to safer production ...
Phys.org / Overlooked 'history force' may skew particle motion by up to 60% in shaken fluids
Physicists at the University of Bayreuth have investigated the so-called Basset–Boussinesq history force acting on particles in fluids. Due to the difficulty of calculating it, this force is often neglected—a fact that Bayreuth ...
Phys.org / Urban life makes animals bolder, more aggressive across 133 species, analysis finds
A global analysis has found that urban animals are bolder and more aggressive, exploratory and active than their rural counterparts. The findings are published in the Journal of Animal Ecology.
Phys.org / New shell helps gold nanoparticles keep shape under laser heat longer
Gold nanoparticles, which are about one-thousandth the width of a human hair, can convert light they receive from a laser into heat. This capacity, known in medicine as photothermal therapy, is effective at destroying cancer ...
Phys.org / TriPcides target MRSA, suppress infection and kill dormant bacteria to open a new front against antibiotic resistance
In a new study, researchers show how so‑called TriPcides can target the bacterium Staphylococcus aureus, including antibiotic‑resistant strains such as MRSA. The compounds disrupt the bacteria's ability to cause infection ...
Phys.org / Extreme weather events are accelerating tidal wetland loss, satellite data show
Tidal wetlands are critical, yet vulnerable ecosystems. Tidal marshes, mangrove forests, and tidal flats support biodiversity, protect against flooding and storm surges, sequester carbon, and improve water quality. Due to ...
Phys.org / Proteins that create ice inspire 'cool' applications, from cryomedicine to artificial snow
Bacteria from the Middle East have caused precipitation all the way out in California. The same bacteria, which are known to attack plants, have also been found embedded within lumps of hail in West Africa.
Phys.org / DNA floating in seawater is now enough to let scientists monitor the health of America's dolphin populations
DNA is everywhere in the world's oceans—not only packaged inside cells from skin, scales, mucus, feces, and blood, but also floating freely. Sequencing such "environmental DNA" (eDNA) from open water has long been used as ...
Phys.org / Brutal field trip provides new insights into Arctic winter
It was the hardest field trip they had ever been on, but the result was both surprising and exciting. After hiking 9 kilometers with a 400-meter elevation gain and carrying heavy backpacks through very rocky terrain, the ...
Phys.org / Imperfect polymer sequences still control protein function, revealing new design rules
What happens when a scientific problem seems too complex to solve precisely, yet understanding it could reshape how researchers design new materials and medicines? For decades, much of the polymer science community has relied ...
Phys.org / Seabird world shrinks as oceans warm, forcing longer flights to survive
Seabirds such as albatrosses and petrels are retreating into smaller areas of ocean and traveling further to find new places to live as the climate warms. Scientists from the University of Reading studied more than 120 species ...
Phys.org / Decoding the balance between life-and-death proteins
In every organism, the regulation of cell populations is a constant process. This balance relies on a continuous interplay between "guardian" proteins that promote cell survival and "killer" proteins that trigger programmed ...
