As artificial intelligence-powered chatbots edge into the education sector, UniSA experts are encouraging teachers to take an active role in testing and using these cutting-edge tools to maintain a competitive edge in their profession. Read Full Article Here source: Phys.org

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Human actions are changing the environment at an unprecedented rate. Plant and animal populations must try to keep up with these human-accelerated changes, often by trying to rapidly evolve tolerance to changing conditions. Read Full Article Here source: Phys.org

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When most people think of deserts, the word that often comes to mind is sand—and a lot of it. Deserts cover almost a quarter of the earth, yet it’s hard to imagine life thriving in such hostile environments, regulated by how much water and food is available. Read Full Article Here source: Phys.org

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Researchers at UCL and the University of Cambridge have discovered a new type of ice that more closely resembles liquid water than any other known ices and that may rewrite our understanding of water and its many anomalies. Read Full Article Here source: Phys.org

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Researchers at the Wellman Center for Photomedicine have demonstrated that wavelength-dependent changes in the spatial distribution of light transmitted through a multimode optical fiber are not random but highly predictable. Read Full Article Here source: Phys.org

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Good quality indoor air is crucial to our well-being, while impurities in the air can compromise our working capacity and health. Researchers at the University of Turku in Finland have developed a new method for measuring indoor air quality, making use of fluorescent strains of nematodes. Read Full Article Here source: Phys.org

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Trees living in conditions where carbon dioxide (CO2) levels have been artificially elevated are likely to become more efficient in conserving water. Read Full Article Here source: Phys.org

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Since antiquity, humans have been fascinated by birds’ intercontinental migratory journeys. A new study from Lund University in Sweden shows that two areas in their genome decide whether a willow warbler flies across the Iberian Peninsula to western Africa, or across the Balkans to eastern and southern Africa. Read Full Article Here source: Phys.org

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Efforts to fight disease-causing bacteria by harnessing their natural predators could be undermined when multiple species occupy the same space, according to a study by Dartmouth College researchers. Read Full Article Here source: Phys.org

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A couple of days before Christmas, I went to see the NHL’s Nashville Predators play on their home ice against the defending Stanley Cup champion Colorado Avalanche. Read Full Article Here source: Phys.org

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Symbiotic relationships are everywhere in nature. In the soil, for example, mycorrhizal fungi enhance water and nutrient absorption for plants while feeding on sugars their roots release. In another classic mutualism, ants find food and shelter in specialized structures that acacia trees grow; the insects, in turn, defend the trees from being eaten by other hungry critters. Read Full Article Here source: Phys.org

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As infections caused by nontuberculous mycobacteria (NTM) are rapidly increasing globally, a need exists for developing novel antibiotics and discovering the mechanism of resistance. New research reported in Zoonoses is aimed at understanding the mechanism of bedaquiline resistance in the model NTM species Mycobacterium marinum (M. marinum). Read Full Article Here source: Phys.org

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To capture an image of an object, a photographer typically requires a source of light interacting and scattering away from that object of interest, and a method to detect the light being scattered away from that object, as well as a detector with spatial resolution. These ingredients of photography are limiting in biological/sensitive specimen imaging however, due to the absence of photon-starved detection capabilities that can damage the specimen during interactions.

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Intermittent fasting—abstaining from eating for lengthy periods of time—spurs liver cells in laboratory mice to divide rapidly, according to a study led by researchers at Stanford Medicine. The finding challenges the long-standing belief that cells in the adult liver divide rarely and, when they do, primarily to repair damage to the organ. It is also the first to show an immediate effect of diet on liver cell biology. Read Full Article Here

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We tend to talk about social media in sweeping terms: It’s either the death knell for democracy or its savior. It’s a tool to fight authoritarianism or a weapon to spread strategic misinformation. It polarizes us or pulls us together. Read Full Article Here source: Phys.org

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Conversing with a friend just once during the day to catch up, joke around or tell them you’re thinking of them can increase your happiness and lower your stress level by day’s end. Read Full Article Here source: Phys.org

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Cells and tissues rely on the circulation of red blood cells (RBCs) for oxygen supply. Two-photon (2P) microscopy is a reference technique for measuring RBC microcirculation and blood oxygenation using exogenous phosphorescent probes. It is increasingly used to study brain oxygenation and physiology. Read Full Article Here source: Phys.org

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Countries hosting the Olympic Games do not tend win more medals when socioeconomic factors are controlled for, reports a study published in Scientific Reports. The findings dispute the existence of the so-called “host effect”—where hosting countries win more medals than usual—although the authors caution that larger studies involving more editions of the Olympics are needed to confirm these findings. Read Full Article Here source: Phys.org

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Messenger RNAs (mRNAs) contain chemical marks that are critical for antiviral defense in cells, according to a new study from researchers at Weill Cornell Medicine. The finding solves a 50-year mystery concerning the purpose of these chemical modifications, and suggests that faulty mRNA modification may underlie some autoimmune and inflammatory disorders. Read Full Article Here source: Phys.org

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A study conducted by scientists from the University of Liège and the HEDERA-22 spin-off on moon milk—a mineral deposit found in caves and used for its curative properties—has led to the discovery of a cryptic compound active against bacteria that are multi-resistant to antibiotics. This discovery is the subject of a technology transfer and a publication in the International Journal of Molecular Sciences. Read Full Article Here source: Phys.org

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A team of Boston College researchers has demonstrated an unprecedented catalytic approach that enables concurrent control of multiple convergences and selectivities in intermolecular amination of allylic carbon-hydrogen bonds in alkenes, a valued but challenging class of organic reactions, the team reported recently in Nature Chemistry. Read Full Article Here source: Phys.org

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Researchers from the University of Illinois Urbana-Champaign and the University of Illinois Chicago have demonstrated a powerful new approach to small molecule drug development. Read Full Article Here source: Phys.org

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Microresonators based frequency combs, microcombs, have attracted huge interest in the last decades for their revolutionary performance of compact size, flexible comb spacing, and broad bandwidth. Wide applications of microcombs including optical frequency synthesizer, atomic clock, lidar, spectroscopy and optical communications have been reported. Read Full Article Here source: Phys.org

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Researchers at Chalmers University of Technology and partners within the Chemical Imaging Infrastructure have produced a method whereby it is possible to see at the nano level where a medicinal drug ends up in the cells and how much of it is needed for optimum treatment. The technique enables the development of new pharmaceuticals and tailored treatments for diseases that have not previously been treatable. Read Full Article Here source: Phys.

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The government of Canada recently amended the Immigration and Refugee Protection Regulations to include new employer obligations. These amendments are intended to enhance protections for migrant workers and ensure the integrity of the government’s temporary foreign worker program. Read Full Article Here source: Phys.org

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