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Researchers have shown that a fluorescence detection system that doesn’t contain any lenses can provide highly sensitive detection of deadly microorganisms in drinking water. With further development, the new approach could provide a low-cost and easy-to-use way to monitor water quality in resource-limited settings such as developing countries or areas affected by disasters. It could also be useful when water safety results are needed quickly, such as for swimming events, a concern [...]

Research indicates that while the most severe effects of SARS-CoV-2 were observed in patients with acute COVID-19, individuals who experienced milder cases and were not hospitalized also reported symptoms of memory loss and attention deficits lasting over 18 months post-infection. Memory loss and attention deficit are common complaints among severe COVID-19 survivors. However, these and other cognitive impairments have also been observed in patients with mild cases more than 18 months after [...]

A Brazilian study published in the journal PNAS describes some of the effects infection by SARS-CoV-2 can have on the central nervous system. A preliminary version (not yet peer-reviewed) posted in 2020 was one of the first to show that the virus that causes COVID-19 can infect brain cells, especially astrocytes. It also broke new ground by describing alterations in the structure of the cortex, the most neuron-rich brain region, even in cases of mild COVID-19. The cerebral cortex [...]

Energy is information. Lengthening the time during which a system is capable of retaining energy before losing it to the local environment is a key goal for the development of quantum information. This interval is called the “coherence time”. Several studies have been performed with the aim of retarding decoherence. A study conducted by researchers at the University of Campinas’s Gleb Wataghin Institute of Physics (IFGW-UNICAMP) in São Paulo State, Brazil, in [...]