Further Reading.
Thumbnail image credit: Not alive, but not dead… FEATURED SCIENCE ARTICLE.
MRI image: Britannica: brain.
anatomy.
Not alive, but not dead: disembodied human brains used for drug testing.
https://www.science.org/content/artic…
Restoration of brain circulation and cellular functions hours.
https://pubmed.ncbi.nlm.nih.gov/30996…
Science #explained #brains #organoid #sciencenews
Healthy sleep and regular exercise can work to counteract genetic mutations in white blood cells that are associated with cardiovascular disease and are most common among older people, Mount Sinai researchers have found. In a study published in Nature, the team reported for the first time that sufficient sleep and exercise can help reduce the cancer-like cell expansion and atherosclerotic risk linked to mutations that spontaneously occur in white blood cells.
These mutations accumulate over our lifetimes and occur most often in hematopoietic stem cells, which are the cells in bone marrow that make blood cells, including macrophages and monocytes, immune cells that help defend the body. When these cells develop mutations, they start to proliferate, multiplying faster than they should, and become more inflammatory, irritating or damaging tissues in the body.
This condition, known as clonal hematopoiesis (CH), is detectable in a quarter of people over age 70 and half of people over 80, the researchers say, though it is infrequent in young, healthy people.
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Approximately 160 million years ago, during the Age of Dinosaurs, giant marine reptiles ruled the seas. One such creature, an ichthyosaur, swam in a sea near present-day Peterborough, England. This huge animal, shaped like a dolphin, was a quick swimmer that chased prey such as ammonites and squid for sustenance.
However, on this day, luck was not on its side.
A pliosaur, an even more imposing reptile with 5-inch-long (13-centimeter-long), dagger-like teeth, attacked the ichthyosaur from underneath, biting with such force during the struggle that the tip of one of its teeth broke off in the middle of the ichthyosaur’s vertebra. The ichthyosaur’s body fell in pieces to the ocean floor, where the pliosaur finished its meal—a vivid scene inspired by the contents of a drawer in the Peabody’s Division of Vertebrate Paleontology.
The UK keeps producing world-class technology, then watches many of its companies scale in America.
Rory Daniels, Head of Emerging Technology and Innovation at techUK, joins Thinking on Paper to discuss whether the United Kingdom can remain competitive as quantum computing, robotics, photonics, AI and advanced computing begin to converge.
The UK has strong research institutions, deep technical talent and globally significant companies. Its recurring problem is scale. Promising technologies are often developed in British universities and laboratories, then commercialised or funded elsewhere.
In this episode, we discuss:
-What makes the UK robotics industry different from the US and China.
–Whether robotaxis can coexist with London’s black-cab industry.
–Why UK technology companies struggle to scale after the startup stage.
–The role of universities, technology-transfer offices and regional innovation clusters.
–How techUK connects companies, researchers and policymakers.
Rory argues that the UK’s advantage may not lie in dominating a single technology. It may come from combining existing strengths in AI, chip design, robotics, quantum computing, photonics and connectivity.
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Former chief business officer of google.
Mo Gawdat returns to London Real with a stark warning: artificial intelligence is advancing at breakneck speed, and humanity may be unprepared for its consequences.
The former Google X executive reveals how AI capabilities now double every 5.7 months and warns of an approaching “AI Cold War” driven by unchecked capitalism and fear.
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Researchers from the National University of Singapore (NUS) have developed a computation-guided strategy to produce urea more efficiently from carbon dioxide and nitrate. By combining large language models, density functional theory calculations and experiments, the approach identified a cadmium-modified iron oxide catalyst that maintains high urea selectivity at practical current densities.
Urea is one of the world’s most widely used fertilizers, but its conventional production comes at a heavy environmental cost. The industrial process accounts for more than two percent of global energy consumption and releases over 200 million tons of carbon dioxide each year.
A cleaner alternative is to produce urea electrochemically, using low-carbon electricity to convert carbon dioxide and nitrate into a useful product. However, this approach has been difficult to scale up. At the high current densities needed for practical production, the catalysts often favor competing side reactions, such as hydrogen gas formation or carbon dioxide reduction to other products.
An international team of researchers including our Department of Geography has discovered a vast geological structure hidden beneath the East Antarctic Ice Sheet. The findings are published in the journal Nature Geoscience.
The structure is made up of a system of enormous subglacial basins buried in ice over three kilometers thick in parts.
Together, the basins form a giant fan-shaped structure on a continental scale. The team have named it the East Antarctic Fan-shaped Basin Province.
Researchers at the University of Birmingham have developed a new low-temperature approach to hydrogen production that could make the clean fuel cheaper and more practical to generate. The technique could be used both in large centralized facilities and in smaller local systems that take advantage of waste heat from major industrial operations.
Hydrogen is the most abundant element in the universe and is widely viewed as an important clean energy source. When used as a fuel, it produces only water and heat rather than carbon dioxide and other pollutants associated with fossil fuels. Hydrogen can also power fuel cells that generate electricity. Despite these advantages, around 95% of hydrogen production today still depends on fossil fuels.