Notícias · Recifes

Evidence of elusive high-energy gravitons in quantum Hall systems

Electrons, negatively charged particles, sometimes coordinate their movements in ways that produce certain collective excitations referred to as quasiparticles. One case in which this occurs is the quantum Hall effect, a phenomenon that emerges when electrons are confined to a ve

Admin Recifes 15/07/2026 1

New ultrathin lens focuses light into an optical needle

Researchers have created a special flat lens that shapes light into an optical needle—a thin beam that stays tightly focused over a long distance. Combining this lens, which is about 7 microns thick, with optical coherence tomography (OCT) could allow imaging that reaches deeper

Admin Recifes 15/07/2026 1

UK waters hit with extreme heatwave as global sea temperatures reach record levels

Experts warn that some marine species are at risk of ‘mass mortality events’ in ever-warming oceansUK waters are being hit with an “extreme” marine heatwave, the Met Office has said, as scientists warn that high ocean temperatures globally could result in “mass-mortality events”

Admin Recifes 15/07/2026 1

How cells keep genomic hitchhikers under control

Much of the genome is made up of repetitive DNA sequences that trace back to ancient mobile elements, many of which have lost their ability to copy themselves into new locations but can still cause problems if they become active again at the wrong time. Now, two studies published

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More than 90% of key nutrients degrading the Mar Menor lagoon come from recirculated under

More than 90% of the key nutrients degrading the Mar Menor, such as ammonium, phosphorus and silica, do not come from streams or continental groundwater, but rather through a mechanism that has so far been overlooked: Water from the lagoon itself infiltrates the sediments and re-

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New CRISPR method makes it possible to control protein production in cells

The speed at which a cell produces proteins is a decisive factor in determining whether it divides, specializes or retains its stem cell properties. A team of researchers led by Professor Stefan H. Stricker, professor of epigenetic engineering at LMU's Biomedical Center and resea

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Scientists discover rare 'super-Jupiter' planet with 180-day long orbit

Scientists from Queen's University Belfast have led an international team in the discovery of a rare new planet, which is larger than Jupiter and orbits a distant star every 180 days. Named NGTS-38 b, it is an exoplanet—a planet that orbits a star beyond our solar system. It is a

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Why some glasses break suddenly while others deform smoothly

If a liquid is cooled slowly to its freezing point, it becomes a crystal in which the constituent particles are arranged in an ordered pattern. In contrast, when the liquid is cooled very quickly, the particles are unable to arrange themselves in an ordered fashion, and it become

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Is male testosterone in freefall? – podcast

Men’s average testosterone levels have halved over the past 50 years, according to scientists who say society is facing a male fertility crisis. Rising levels of obesity and diabetes are expected to play a part, but the team behind the work suggest that environmental factors such

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Varroa risk to Tasmanian crop pollination

A study by the Tasmanian Institute of Agriculture (TIA) has highlighted the impact Varroa mites will have on crop pollination in Tasmania if the parasitic mites become established in the state. The study was prompted by the spread of Varroa on mainland Australia, which is wreakin

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Low-e windows keep homes cool … but may set neighbours’ property on fire

Low-emissivity windows also keep houses warm in winter, but use on bowed glass can have magnifying-glass effectLow-emissivity or low-E window glass is a useful green technology for keeping buildings warm in winter and cool in summer … but a rare side-effect can set the neighbours

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Young giant gas planet Beta Pic B refuses to reveal its origin

The young planetary system of the 23-million-year-old star Beta Pictoris (short: Beta Pic) is regarded as an iconic circumstellar dust disk, which hosts at least three giant gas planets. Discovered in 2008 by direct imaging, Beta Pic b is the most massive of those planets, measur

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