ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

What builds cohesion in diverse societies? Brain scans point to shared national identity cues‎

The brain? It has a flexible social perception. In interactions with people from different ethnic groups, it tends to respond more inclusively when a shared national identity is made salient. A study, by the University of Trento, Italy, and Nanyang Technological University, Singapore (NTU Singapore), published in Proceedings of the National Academy of Sciences, sheds light on the underlying neural mechanisms.

21:24
תפריט כתבה
Phys

COVID-19 pandemic nudged young people in the UK toward extremism, according to recent data‎

As the UK entered COVID-19 lockdown in March 2020, security services and counterterrorism officials warned of a new threat forming in young people's bedrooms. Superintendent Matthew Davison, head of Prevent North-East, cautioned that extremists were deliberately targeting isolated young people online, while Detective Superintendent Jim Hall in Wales warned of rising exposure to radicalizing material on social media. The narrative was compelling: a generation of bored and frustrated young people across the United Kingdom cut off from schools, colleges and universities, isolated from friends and routines, spending unprecedented hours of screen time online, rendering them susceptible to recruitment by far-right and Islamist propagandists.

21:14
תפריט כתבה
Phys

SimCells successfully target and kill drug-resistant bacteria‎

We are continually in an evolutionary arms race with bacteria. As we develop new antibiotics, they develop resistance, and so it goes on until some of our treatments no longer work. Superbugs and antimicrobial resistance (AMR) are a huge global health problem. So what do you do when your medicines are ineffective? The answer for some researchers is to build their own biological weapons. A team including experts from the University of Oxford in the UK has developed a way to create specialized cells that hunt down and kill drug-resistant germs.

21:06
תפריט כתבה
Phys

Quantum magnetism: Spin-flip process in atomic nucleus does not account for all magnetic behavior‎

In the air people breathe, the water on Earth, the stars in the sky and more, atoms are the building blocks that make up the universe. Understanding the structure of the atomic nucleus is crucial for research with implications for astrophysics and in applications such as medical imaging and data storage.

20:41
תפריט כתבה
Phys

Ultra‑robust machine‑learning models run stable molecular simulations at extreme temperatures‎

Researchers at The University of Manchester have created a physics‑informed machine‑learning model that can run molecular simulations for unprecedented lengths of time, even at temperatures as high as 1,000 Kelvin. The study, published in Communications Chemistry, explores the first AI-powered model that can keep molecular simulations running safely and smoothly, even when molecules are pushed to extreme conditions. In simple terms, this model stops molecules from "breaking apart" inside the simulation, allowing researchers to study how they behave over long periods and at very high temperatures.

20:41
תפריט כתבה
Phys

AI could undermine meaningful learning unless feedback stays rooted in connection, study recommends‎

The rise of generative AI in higher education is reshaping how feedback is delivered, but meaningful learning could be undermined if its use is not carefully guided by principles of care, trust and connection, according to new research led by the University of Surrey. Published in Assessment & Evaluation in Higher Education, the paper explores how generative AI technologies, including chatbots such as ChatGPT, are transforming feedback for students—highlighting both the opportunities and risks of AI in education.

20:41
תפריט כתבה
Phys

Phylogenetically diverse Central China proposed as newest global biodiversity hotspot‎

Taxonomic endemism and phylogenetic endemism are both important measures of biodiversity. The former describes the number of distinct species found nowhere else, whereas the latter shows the amount of evolutionary branch length unique to a particular area. A comprehensive phylogeny provides the essential evolutionary framework for delineating centers of paleo- and neo-endemism across both measures.

20:29
תפריט כתבה
Phys

Webb reveals hidden details of W51 star formation‎

A team of University of Florida researchers used the James Webb Space Telescope to capture photos of a star-forming region known as W51 with never-before-seen clarity and resolution. The long wavelengths of JWST's infrared technology allowed astronomers to see the stars clearly and show what was previously hidden. Stars in the W51 region are very young and massive, and using the telescope gave the team the ability to view the early stages of star formation.

20:09
תפריט כתבה
Phys

Solar flare prompts close monitoring of space weather ahead of Artemis II launch‎

With NASA preparing for the Artemis II launch (expected tomorrow, 1 April), a strong solar flare earlier this week is putting space weather back into focus—and highlighting the unpredictable risks astronauts could face beyond Earth's atmosphere. Professor Keith Ryden, leader of the Space Environment and Protection research team at the Surrey Space Centre, University of Surrey, has shared new insights into what this flare means for the mission, and why events like this remain difficult to predict.His comment also includes historical context from Visiting Professor at Surrey Space Centre, Clive Dyer, who worked on the Apollo program:

19:53
תפריט כתבה
Phys

Lost mosaic reveals first image of female beast-fighter from the Roman era‎

When you think of a fight between an animal and a human in ancient Roman sports, the mental image is usually of a big man vs. an animal in a big arena filled with cheering spectators. In a new study, Alfonso Manas, a researcher from the University of California, challenges that image. Manas presents evidence that a 3rd-century Roman mosaic from Reims, which depicts a topless figure with prominent breasts battling a leopard, is actually a visual representation of a Roman female beast-fighter, or venatrix. This contradicts previous research, which read her role as that of an agitator, a clown-like arena staff member whose job was to whip the animals to make them attack during a hunt.

19:41
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור