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Новости за 04.05.2024

Nanotech opens door to future of insulin medication

Phys.org 

An international team, led by researchers from Australia, have developed a system using nanotechnology that could allow people with diabetes to take oral insulin in the future. The researchers say the new insulin could be eaten by taking a tablet or even embedded within a piece of chocolate.

Researcher: Climate models can run for months on supercomputers—but my new algorithm can make them ten times faster

Phys.org 

Climate models are some of the most complex pieces of software ever written, able to simulate a vast number of different parts of the overall system, such as the atmosphere or ocean. Many have been developed by hundreds of scientists over decades and are constantly being added to and refined. They can run to over a million lines of computer code—tens of thousands of printed pages.

How to spot fake online reviews (with a little help from AI)

Phys.org 

Before you buy something, or visit a new restaurant, or see a new film, you may be tempted to check out the online reviews. Researching what strangers think of the things we might like has become a familiar part of the modern consumer experience.

Saturday Citations: Parrots on the internet; a map of human wakefulness; the most useless rare-earth element

Phys.org 

We field a torrent of science news updates every week and on Saturday morning, we highlight three or four of them based on the observed preferences of a panel of dogs as shown by the Paired-Stimulus Preference Assessment, a standardized evaluation of preferred stimuli. This week, the dogs selected stories about parrot-to-parrot video calling, loud human noises, and a new neural map of human wakefulness.

Beautifully crafted Roman dodecahedron discovered in Lincoln—but what were they for?

Phys.org 

Roman dodecahedra are something of an enigma: there is no known mention of these 12-sided, hollow objects in ancient Roman texts or images. First discovered in the 18th century, around 130 dodecahedra have been found across the Roman Empire, although it is interesting that the majority have been found in northern Europe and Britain, and none have been found in Italy.

When injecting pure spin into chiral materials, direction matters

Phys.org 

Researchers from North Carolina State University and the University of Pittsburgh studied how the spin information of an electron, called a pure spin current, moves through chiral materials. They found that the direction in which the spins are injected into chiral materials affects their ability to pass through them. These chiral "gateways" could be used to design energy-efficient spintronic devices for data storage, communication and computing.



Are carbon-capture models effective?

Phys.org 

Reforestation efforts to restock depleted forests are important for addressing climate change and for both capturing and restoring carbon from the Earth's atmosphere. These types of solutions to mitigate carbon emissions are critical after 2023 proved to be the warmest year on record. However, some models have been found to be inaccurate.





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