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Chemists shrink gallium nitride, the material behind LED lighting, into nanocrystals

Nanocrystals are so useful that they formed the basis of the 2023 Nobel Prize in Chemistry. But despite their usefulness, scientists have so far been able to make these microscopic crystals from only a limited palette of materials. A group of chemists at the University of Chicago and Argonne National Laboratory has announced a way to make nanocrystals from a useful class of materials known as metal nitridesβ€”a previously impossible task.

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Hourly data reveal Alpine 100-year floods could arrive every 45 to 80 years

Heavy precipitation becomes more intense with every degree Earth warms. This affects flooding. Using hourly data from 384 rivers in the Alps, researchers from the WSL Institute for Snow and Avalanche Research SLF modeled how flooding will change by the end of the century. Their projections are significantly bleaker than earlier ones. The findings are published in the journal Science Advances.

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A new 'library' for Feynman integrals

Theoretical physicists at Johannes Gutenberg University Mainz (JGU) have developed a new method of ordering Feynman integrals. This critical step in making theoretical predictions for high-energy precision measurements has posed a major computational bottleneck until now.

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How ions flow like a liquid through a solid crystal

A research team led by the University of Osaka, working with the National Institute of Advanced Industrial Science and Technology (AIST), RIKEN and the Institute of Science Tokyo, has uncovered a fundamental mechanism behind superionic conduction, in which ions move rapidly through a solid while its crystalline framework remains intact.

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Quantum teleportation could reduce photon loss in long-distance communications

Quantum technologies, which leverage the principles of quantum mechanics, have been found to outperform their classical counterparts on specific tasks. Among other things, past studies have highlighted the potential of quantum systems that can enable long-distance communication, using photons (i.e., particles of light) to carry quantum information.

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Tiny gene edit cuts cadmium in rice by 48% without reducing yields

Cadmium (Cd) contamination poses a serious threat to global food safety. As a toxic and carcinogenic heavy metal, cadmium can accumulate in agricultural soils through industrialization and urbanization before entering the human food chain. Rice is especially vulnerable because it absorbs more cadmium than other major cereal crops, making it one of the largest dietary sources of cadmium exposure for nearly half the world's population.

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Rare mutations are helping dangerous hospital bacteria slip past the last-line antibiotic defense

Another last-resort antibiotic has fallen victim to the rapid evolution of drug-resistant superbugs. The powerful antibiotic combination ceftazidime-avibactam (CZA), widely used to treat severe hospital-acquired infections caused by Pseudomonas aeruginosaβ€”particularly in critically ill and immunocompromised patientsβ€”can no longer eliminate some of these infections.

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FIFA and pop superstars should discount tickets for fans to keep climate costs of 'mega-events' down, say researchers

The vast majority of carbon emissions caused by "mega-events" such as World Cups and global concert tours come from audience travel, according to University of Cambridge researchers. In a new study, researchers estimate that expanding to 48 teams for this year's World Cup increased emissions by well over half a million metric tons to some 4.23 million metric tons of carbon for the whole tournament, 82% of which comes from traveling fans, with around 3 million metric tons from flying alone.

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When disaster strikes, people often flee to places that feel familiar

When the Marshall Fire tore through suburban Colorado in late 2021, residents had only hours to decide where to go. Some fled to nearby towns. Others stayed farther away for weeks or months. Now, a recent study published in Humanities and Social Sciences Communications suggests those decisions were shaped not only by distance or danger but also by something more human: the pull of familiar communities and social ties.

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Doughnut‑shaped topology reveals new way to classify knitting, crochet and other textiles

Fabrics are made by repeatedly intertwining yarns into characteristic patterns. Many of their properties, such as stretchiness, arise not only from the material itself but also from how the yarns are arranged and entangled. Such properties illustrate how topologyβ€”the underlying patterns of connectivity and entanglement within a structureβ€”can shape a material's overall behavior. Understanding these relationships could help researchers design materials with tailored properties through the design of their topology.

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