Day July 28, 2024

Helping our bodies beat the heat

Periods of extreme heat—even a single day when the thermometer hits 35°C—are associated with increased risk of injury, hospitalization and death. When the body gets too hot, the heart and kidneys don’t function properly. This physiological response to heat can…

Study reveals how some bacterial infections become chronic

Computer-generated image of non-typhoidal Salmonella bacteria. Credit: James Archer, Medical Illustrator, Courtesy of CDC/ Antibiotic Resistance Coordination and Strategy Unit In the early 1900s, a cook named Mary Mallon, better known as “Typhoid Mary,” spread Salmonella Typhi, the causative agent…

Fingerprinting biomolecules with the help of sound

A surface acoustic wave launched by an interdigital transducer ripples the surface of the biosensor, confining light at the nanoscale to make it interact more efficiently with the molecules. Credit: Jorge Pedrós, Raúl Izquierdo (UPM) and Enrique Sahagún (Scixel) A…

A robot that survives through self-amputation

Credit: Yale University Self-amputation may seem like a drastic move, but it’s a survival tactic that’s proved particularly handy for numerous creatures. Yale roboticists have drawn inspiration from lizards, crabs, and other animals who shed parts of themselves without looking…

Model collapse could be coming for LLMs

The high-level description of the feedback mechanism in the learning process. Credit: Nature (2024). DOI: 10.1038/s41586-024-07566-y Using AI-generated datasets to train future generations of machine learning models may pollute their output, a concept known as model collapse, according to a…

Soda cans, seawater and caffeine

MIT engineers Aly Kombargi (left) and Niko Tsakiris (right) work on a new hydrogen reactor, designed to produce hydrogen gas by mixing aluminum pellets with seawater. Credit: Tony Pulsone A sustainable source for clean energy may lie in old soda…