New biological marker of early-stage Alzheimer's disease uncovered

Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive memory loss and a decline in mental functions. These symptoms are known to arise from an abnormal buildup of proteins known as amyloid ...

Astronomy

Astronomers find evidence for three subpopulations of merging black holes

Astronomers analyzing gravitational-wave data from the LIGO-Virgo-KAGRA Collaboration have reported that merging binary black holes fall into three distinct categories. The study shows that the three subpopulations have their ...

A nanoscale robotic cleaner can hunt, capture and remove bacteria

Tiny robots—around 50 times smaller than the diameter of a human hair—open up fascinating possibilities: they enable the controlled manipulation of objects far too small for human hands. This brings us closer to a long-standing ...

New drug combination doubles down on Alzheimer's treatments

A new study has found that combining the current medications for Alzheimer's disease with small molecules derived from micronutrients found in grapes, berries, peanuts and turmeric is a safer and more effective way to treat ...

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'Poor man's Majoranas' can be used as quantum spin probes

A Majorana fermion is a particle that would be identical to its antiparticle. Such an object has not yet been found. However, certain solid materials exhibit analogous behavior as if Majorana fermions were present through ...

Artemis crew urges unity on 'lifeboat' Earth

Artemis II astronauts expressed awe on Saturday over their record-setting lunar flyby mission, urging unity on Earth after witnessing the planet's isolation like a "lifeboat" in space.

From bias to balance: How AI can reshape hiring decisions

A study of HR professionals shows inclusion-focused AI can reduce disability discrimination and improve fairness in real-world recruitment scenarios. Artificial intelligence is rapidly reshaping how organizations hire. From ...

AI and drones can select the most resilient wheat

Making wheat more resilient to climate change without compromising yields has become an urgent priority for the agricultural sector. Now, a study led by a research team from the University of Barcelona and the Agrotecnio ...

One DNA letter can trigger complete sex reversal

Researchers at Bar-Ilan University have discovered that changing just one letter in DNA can completely alter sex development in mice. In the new study, published in Nature Communications, a single-letter insertion in a non-coding ...

'Oldest octopus' fossil is no octopus at all, scans reveal

A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of Records—has turned out to be something else altogether. In what amounts to a case of mistaken identity, ...

Students prefer AI chatbots, until they know it is one

Do chatbots have a role in higher education? It's a question Joshua Lambert, an associate professor and biostatistician in the University of Cincinnati College of Nursing, is pondering. He's turned to a group of his students ...