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Tech Xplore / AI chatbots provide less-accurate information to vulnerable users, study shows
Large language models (LLMs) have been championed as tools that could democratize access to information worldwide, offering knowledge in a user-friendly interface regardless of a person's background or location. However, ...
Phys.org / Archaeologists identify elders in Iron Age Israel through household artifacts
A new study from Bar-Ilan University is shedding light on a long-overlooked social group in archaeology: the elderly. While research on women and children has flourished in recent decades, older adults have remained largely ...
Tech Xplore / New chip-fabrication method creates 'twin' fingerprints for direct authentication
Just like each person has unique fingerprints, every CMOS chip has a distinctive "fingerprint" caused by tiny, random manufacturing variations. Engineers can leverage this unforgeable ID for authentication, to safeguard a ...
Medical Xpress / Astrocytes, not just neurons, found to drive fear memory signals in the amygdala
Picture a star-shaped cell in the brain, stretching its spindly arms out to cradle the neurons around it. That's an astrocyte, and for a long time, scientists thought its job was caretaking the brain, gluing together neurons, ...
Phys.org / Americium, curium and californium—crystallizing the rarest elements
Actinides are a group of heavy, radioactive elements that include uranium, plutonium, americium, curium, berkelium and californium. Understanding how these elements bond with other atoms (known as coordination chemistry), ...
Phys.org / Occupy Mars? Or the moon? Get a reality check on Elon Musk's plans
It's an age-old debate in space circles: Should humanity's first city on another world be built on the moon, or on Mars? As recently as last year, SpaceX founder Elon Musk saw missions to the moon as a "distraction." In a ...
Phys.org / A key out-of-Africa site just got older: Dating methods push 'Ubeidiya site back at least 1.9 million years
A new study provides a clearer timeline for one of the most significant prehistoric sites worldwide for the study of human evolution. By integrating three advanced dating techniques, researchers have determined that the site ...
Phys.org / NASA targets March for first moon mission by Artemis astronauts after fueling test success
NASA aims to send astronauts to the moon in March after acing the latest rocket fueling test.
Phys.org / Scientists raise 300,000 surfclams offshore, proving open-ocean aquaculture can work
Rutgers researchers have made a discovery that could change the future of seafood farming in New Jersey. A study led by marine scientist Daphne Munroe has shown that Atlantic surfclams can be successfully farmed in the open ...
Medical Xpress / Stunning new maps of myelin-making mouse brain cells advance understanding of nervous system disorders
Johns Hopkins scientists say they have used 3D imaging, special microscopes and artificial intelligence (AI) programs to construct new maps of mouse brains showing a precise location of more than 10 million cells called oligodendrocytes. ...
Medical Xpress / Newly discovered virus linked to colorectal cancer
Colorectal cancer is one of the most common types of cancer in the Western world and a leading cause of cancer-related deaths. Age, diet and lifestyle are known risk factors. However, in most cases we still lack a precise ...
Phys.org / Nanodevice produces continuous electricity from evaporation
A nanodevice developed at EPFL produces an autonomous, stable current from evaporating saltwater by using heat and light to control the movement of ions and electrons. Previously, researchers in the Laboratory of Nanoscience ...
