From Microsoft.
Direct Nash Optimization.
Teaching Language Models to Self-Improve with General Preferences.
There are trillions of microorganisms living in our gastrointestinal tract. So why doesn’t the immune system launch a massive response against all of those foreign microbes? Scientists have now provided new details about the process. The findings have been reported in Nature.
The gut microbiome has to maintain a careful balance, and promote the growth of healthy and beneficial organisms while tamping down the growth of potential pathogens. While scientists have not defined exactly what a healthy microbiome is made of, and it may differ from one person to another, we do know that when the balance in the microbial community of the gut is disrupted, health problems can arise.
A radio telescope observed complex activity in a magnetar 8,000 light-years from Earth:
A CSIRO team discovered a dormant star waking up with “unusual radio pulses” after being silent for years.
Most magnetars are known to emit polarized light, which oscillates in a certain direction. This magnetar generates light with circular polarization, creating a rapid spiral pattern as it travels across space.
Continue reading “Magnetic star flashes ‘never seen before’ signals baffling scientists” »
Free and open software have transformed the tech industry. But we still have a lot to work out to make them healthy, equitable enterprises.
Scientists studying learning in mice have inadvertently encountered ‘zombie neurons’ in the brain – not flesh-eating, virus-spreading monsters, but cells that stop interacting normally even though they’re functionally alive. What’s more, they shed new light on learning processes in the brain.
A team from Portugal discovered the cells as part of an investigation into how a part of the brain called the cerebellum learns from the environment around us.
The cerebellum processes sensory information related to motor movements. It helps us walk down a crowded street, or pick up a drink without spilling it, and it’s also important for learning: so if we bump into something, we know how to refine our movement to avoid it next time. Exactly how that learning happens was the subject of this new study.
Rational and scientific use of hyperspectral imaging involves the selection of appropriate imaging hardware and data analysis software. Sun et al. describe applications of hyperspectral imaging in food quality inspection and provide guidance for non-specialist researchers aiming to implement this technology.
A newly developed AI method can calculate a fundamental problem in quantum chemistry: Schrödinger’s Equation. The technique could calculate the ground state of the Schrödinger equation in quantum chemistry.
Predicting molecules’ chemical and physical properties by relying on their atoms’ arrangement in space is the main goal of quantum chemistry. This can be achieved by solving the Schrödinger equation, but in practice, this is extremely difficult.
Despite their ancient ages, some stars orbiting the Milky Way’s central supermassive black hole appear deceptively youthful. But unlike humans, who might appear rejuvenated from a fresh round of collagen injections, these stars look young for a much darker reason.
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Experts are concerned about the way our planet is rotating due to climate change. For years, scientists have been concerned about the impacts of global warming.
Now, new research has revealed a change in the Earth’s spin due to the melting of the ice poles.
Continue reading “Worrying research show the Earth’s rotation is beginning to change” »
