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Medical Xpress / Brain circuit keeps tabs on what just happened to aid judgment of what's happening now

A brain must constantly cope with the highly variable, fast-paced nature of the world when trying to judge what's going on around it. On the one hand, it has to be open to whatever new sensory information may come its way, ...

3 hours ago
Medical Xpress / Pregnancy increases immune burden on women with arthritis and lupus

When a new life begins to grow in the mother's womb, the immune system must perform a demanding balancing act: It must tolerate the fetus, which is genetically half foreign, and at the same time protect the mother from infection. ...

2 hours ago
Phys.org / Soft-bodied sea slug reconfigures anatomy to simplify feeding control

Made entirely of muscle, with no rigid skeleton, muscular hydrostats like octopus arms, elephant trunks and human tongues can move in ways traditional mechanical systems cannot. Between crawling across the seafloor, picking ...

4 hours ago
Phys.org / How 'pioneering pairs' of ospreys drive population recovery

A new study by Bournemouth University (BU) has found that faster recovery of osprey populations relies on a small number of ospreys that, unlike most, prefer to nest away from others of the same species. These birds have ...

2 hours ago
Phys.org / Three days of Ontario wildfire smoke brought unhealthy air to 106 million person-days

Smoke from Canada's July wildfires exposed people across Canada and the United States to unhealthy, very unhealthy or hazardous air for nearly 106 million person-days between July 15–17. Over the peak impact period of July ...

2 hours ago
Phys.org / Active supermassive black holes may help form massive planets

A popular myth about black holes is that they act like giant cosmic vacuum cleaners, sucking in everything around them. But Wladimir Lyra's research found a new mechanism around supermassive black holes that is more like ...

8 hours ago
Phys.org / CRISPR roadblocks: Scientists identify genes blocking gene therapy success

Like a delivery driver navigating crowded city streets, a gene-therapy-toting lipid nanoparticle faces a gauntlet of potential detours on its journey toward a cell's nucleus. First, there's entering the cell's plasma membrane; ...

4 hours ago
Phys.org / Complex suicidal somersault behavior in male redback spiders may be explained by surprisingly simple genetics

The Australian redback spider (Latrodectus hasselti), a cousin of the North American black widow spider, is known to practice sexual cannibalism, which is somewhat common among spider species. However, the male Australian ...

7 hours ago
Tech Xplore / From 'learning' to 'thinking,' AI language has long carried double meanings

Organizations can describe artificial intelligence using familiar words like "thinking," "writing" and "learning." But according to Carnegie Mellon University historian Christopher Phillips, those terms may tell us as much ...

2 hours ago
Phys.org / Early hardship may shape how oxytocin influences altruism

While humans are inherently social beings, they can interact and connect with others in very different ways. For instance, while some people tend to be more altruistic, others are less prone to helping their friends, acquaintances ...

9 hours ago
Medical Xpress / First heart signaling atlas could help identify drugs that act directly on heart muscle

QIMR Berghofer researchers have created the most detailed map yet of the chemical signals that control heart function, opening new avenues for the diagnosis, treatment and prevention of heart disease.

2 hours ago
Medical Xpress / AI digital twin platform advances personalized cancer treatment planning

A research team at The Hong Kong Polytechnic University (PolyU) has developed a patient-centric "Artificial Intelligence (AI) Virtual Patient Simulation System," overcoming the limitations of conventional static diagnosis.

2 hours ago