Your brain and gut are more connected than you think. Learn how to shut down a negative stress response to help the digestive symptoms of Crohn’s disease.
Researchers in the CEST group have published a study demonstrating the effectiveness of machine learning methods to identify suitable perovskite solar cell materials. Perovskite solar cells are a novel technology gathering a lot of interest due to their high efficiency and potential for radically lower manufacturing costs when compared to the traditional silicon-based solar cells.
Despite their promising qualities, the commercialization of perovskite solar cells has been held back by their fast degradation under environmental stresses, such as heat and moisture. They also contain toxic substances that can negatively impact the environment. The search for new perovskite materials that do not have these problems is ongoing, but the established experimental and computational research methods have not been able to handle the high number of material candidates that need to be tried and tested.
CEST members Jarno Laakso and Patrick Rinke, with collaborators from University of Turku and China, developed new machine learning-based methodology for rapidly predicting perovskite properties. This new approach accelerates computations and can be used to study perovskite alloys. These alloy materials contain many candidates for improved solar cell materials, but studying them has been difficult with conventional computational methods.
Nature.
Until then, the only time reference that allowed the age of the site to be established was the dating of one of the dunes that covered the surface to around 106,000 years ago (Upper Pleistocene). As with most of the hominid footprints found worldwide, we dated them in line with the environment in which they were found. For this reason, our first hypothesis when trying to attribute the newfound footprints was that they belonged to Neanderthals, who lived in the Upper Pleistocene.
Scientists have also discovered a way to use artificial intelligence to predict the risk of a heart attack or stroke using only a single x-ray.
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Scientists find that yaks’ lungs evolved to use oxygen more efficiently at high altitudes.
Scientists in Europe may have discovered a direct link between the human brain and the quantum nature of the universe itself.
The United States Air Force unveiled the B-21 Raider, a high-tech stealth bomber that can carry nuclear and conventional weapons and is designed to be able to fly without a crew on board. The fleet is estimated to cost $203 billion to develop, buy and operate over 30 years, according to Bloomberg, with the US planning to acquire at least 100 of the aircraft.
Much of the features of the warplane are shrouded in mystery, with reports suggesting that it has the potential for an uncrewed flight. A US Air Force spokeswoman said the aircraft was “provisioned for the possibility, but there has been no decision to fly without a crew”.
The first flight by a B-21 is expected to take place next year.