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Phys.org / Dating a North American rock art tradition that lasted 175 generations

The Pecos River murals are a stunning collection of monumental, multicolored rock paintings in limestone rock shelters across southwest Texas and northern Mexico. They depict human-like figures that reach up to eight meters ...

4 hours ago in Other Sciences
Phys.org / Lethal virus hits last rare blue macaws in Brazil wild

The only wild specimens of a rare blue parrot which had only recently been returned to its natural habitat in Brazil have been diagnosed with a lethal, incurable virus, the government said in a statement sent to AFP Thursday.

1 hour ago in Biology
Medical Xpress / Inhibiting a master regulator of aging regenerates joint cartilage in mice

An injection that blocks the activity of a protein involved in aging reverses naturally occurring cartilage loss in the knee joints of old mice, a Stanford Medicine-led study has found. The treatment also prevented the development ...

3 hours ago in Arthritis & Rheumatism
Medical Xpress / Bird flu viruses are resistant to fever, making them a major threat to humans

Bird flu viruses are a particular threat to humans because they can replicate at temperatures higher than a typical fever, one of the body's ways of stopping viruses in their tracks, according to new research led by the universities ...

3 hours ago in Medical research
Phys.org / Social media research tool can lower political temperature—it could also lead to more user control over algorithms

A new tool shows it is possible to turn down the partisan rancor in an X feed—without removing political posts and without the direct cooperation of the platform.

3 hours ago in Other Sciences
Medical Xpress / COVID lockdown linked to increase in early child development issues

Lockdown and social distancing measures during the COVID-19 pandemic were associated with increased developmental concerns about young children in Scotland, research suggests.

3 hours ago in Pediatrics
Phys.org / Entanglement-enhanced optical lattice clock achieves unprecedented precision

Optical lattice clocks are devices that measure the passing of time via the frequency of light that is absorbed or emitted by laser-cooled atoms trapped in a repeating pattern of light interference known as optical lattice.

7 hours ago in Physics
Phys.org / Watching metal crystals grow inside liquid metal: Imaging technique could boost hydrogen production

If you dissolve sugar in hot water and then cool it down, you'll see pure sugar crystals form while impurities stay in the liquid. You can even watch the beautiful sugar crystals slowly grow in the water.

4 hours ago in Chemistry
Tech Xplore / New insight into why LLMs are not great at cracking passwords

Large language models (LLMs), such as the model underpinning the functioning of OpenAI's conversational platform ChatGPT, have proved to perform well on various language-related and coding tasks. Some computer scientists ...

7 hours ago in Security
Phys.org / Survey raises estimate of African forest elephant numbers

DNA pulled from the dung of African forest elephants has given experts a more accurate—and higher—population estimate for the elusive animal, but the species remains critically endangered, a study showed Thursday.

4 hours ago in Biology
Medical Xpress / Prototype device restores lost smell by teaching the brain to feel odors

There is new hope for people who have lost their smell. Scientists have successfully tested a breakthrough device that lets people detect the presence of certain odors. This innovative system helps them "smell" again by translating ...

4 hours ago in Neuroscience
Phys.org / Physicist delineates limits on the precision of quantum thermal machines

Quantum thermal machines are devices that leverage quantum mechanical effects to convert energy into useful work or cooling, similarly to traditional heat engines or refrigerators. Thermodynamics theory suggests that increasing ...

9 hours ago in Physics