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כתבות אחרונות מאתר 'Phys'
Phys

Study explains why shoppers avoid plant-based proteins‎

Incorporating more plant-based proteins could help people save on their grocery bill, but new research has found that it's not so simple when it comes to choices at the supermarket. Simon Fraser University researchers peeked into more than 87,000 grocery carts in Canada and Finland to study how much price influenced the type of protein people bought: animal-based or plant-based. Researchers discovered that while the price had to be right, having a variety of options also played a role.

17:38
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Phys

Terahertz biophotonics: Understanding the path towards practical applications for biological imaging‎

Biophotonics is a multidisciplinary field that involves the development and application of light-based technologies to study, monitor and treat biological systems. The ability to directly image cells and molecules has led to many fundamental discoveries in the past century. More recently, the terahertz (THz) region of the electromagnetic spectrum has attracted growing interest as a promising frontier for advancing biological research.

16:44
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Phys

Quantum circuits help AI overcome memory limitations with minimal new parameters‎

For millions of people, chatbots powered by large language models (LLMs) are now a key feature of everyday life. These AI systems are growing at a rapid pace, but scaling them up is becoming increasingly costly and resource-intensive.

16:18
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Phys

Autonomous AI screening flags unreliable Lyme test results, boosting sensitivity to 95.7%‎

Computational point-of-care sensors can significantly improve access to diagnostics by enabling rapid patient testing outside centralized medical facilities. These tests rely on machine learning models to make diagnostic predictions, but such inference models are susceptible to hallucinations and may produce erroneous outcomes. As a result, their limited reliability has partially hindered the broader adoption of computational sensors in health care settings.

14:07
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Phys

First nonrepeating biological clock discovered in C. elegans guides growth‎

Imagine a train parked at the station. Passengers climb aboard and find their seats. Conductors move up and down the aisles, checking tickets. But there's a problem—the engineer's watch is broken. As a result, the doors never close, the whistle never sounds, and the train never starts. Something similar occurs in cells when developmental timing is disrupted. Rather than making people late for work, it can mean the difference between maturing into a healthy adult and never growing up at all.

13:49
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Phys

Hidden protein switch controls photosynthesis as light conditions change‎

Scientists have discovered a previously unknown regulatory mechanism in plant photosynthesis in the unicellular green alga Chlamydomonas reinhardtii. It helps plants adapt to changes in light conditions. The results, published in the journal Nature Plants, show how a crucial protein interaction at the interface between photosystems I and II controls the photosynthetic machinery.

12:59
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Phys

Machine learning uncovers 1,750 quakes tracing 250-kilometer edge of Alaska microplate‎

Thousands of small earthquakes, detected for the first time by a machine-learning process, reveal the distinct, razor-sharp edge of the Yakutat microplate as it subducts beneath the North American plate.

12:59
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