Breaching the horizons: Universal spreading laws confirmed
eurekalert.org – By extending the computational horizons from one day to the unprecedented time scales, the IBS researchers were able to confirm that a cloud of quantum particles continue to spread even when particle to particle interactions originally deemed to be the activator of the spreading, exert almost no strength. Their findings are published online in Jan. 30, 2019, in Physical Review Letters.
Source: Ihor Vakulchyk, Mikhail V. Fistul, Sergej Flach. Wave Packet Spreading with Disordered Nonlinear Discrete-Time Quantum Walks. Physical Review Letters, 2019.
What to do if someone in your apartment building has tested positive for coronavirus
businessinsider.com – Experts explain how you can protect yourself against contracting COVID-19 if someone in your apartment building has tested positive.
Source: Lirong Zou, et al. SARS-CoV-2 Viral Load in Upper Respiratory Specimens of Infected Patients. New England Journal of Medicine, 2020.
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Neanderthals were eating mussels, fish, seals 80K years ago
upi.com – Scientists have found evidence that Neanderthals were consuming mussels, fish, seals and other marine species at least 80,000 years ago.
Source: J. Zilhão, et al. Last Interglacial Iberian Neandertals as fisher-hunter-gatherers. Science, 2020.
Asymptomatic Carriers Are Fueling the COVID-19 Pandemic. Here’s Why You Don’t Have to Feel Sick to Spread the Disease
discovermagazine.com – Experts talk about what it means to be infected without being sick, and how that seems to be making the novel coronavirus very easy to spread.
Source: Ruiyun Li, et al. Substantial undocumented infection facilitates the rapid dissemination of novel coronavirus (SARS-CoV2). Science, 2020.
Is factory farming to blame for coronavirus?
theguardian.com – Scientists are tracing the path of Sars-CoV-2 from a wild animal host – but we also need to look at the part played in the outbreak by industrial food production
Source: Peng Zhou, et al. A pneumonia outbreak associated with a new coronavirus of probable bat origin. Nature, 2020.
'Whiskey Webs' Could Be Used To Identify Counterfeit Spirits
science20.com – When a drop of liquid evaporates, solids are left behind in a pattern that depends on what the liquid is, what solids are in it and the environmental conditions. You may have seen a 'coffee ring' when overflow deposits solids along the edge of the puddle as it evaporates. The same things happen with other beverages.
Source: Adam D. Carrithers, et al. Multiscale Self-Assembly of Distinctive Weblike Structures from Evaporated Drops of Dilute American Whiskeys. ACS Nano, 2020.
Researchers find oldest ancestor of all animals so far
zmescience.com – It's tiny.
Source: Scott D. Evans, Ian V. Hughes, James G. Gehling, Mary L. Droser. Discovery of the oldest bilaterian from the Ediacaran of South Australia. Proceedings of the National Academy of Sciences, 2020.
Milky Way Dark Matter Signals in Doubt after Controversial New Papers
sciam.com – New analyses question whether mysterious gamma-ray and x-ray light in the galaxy actually stems from an invisible mass
Source: Christopher Dessert, Nicholas L. Rodd, Benjamin R. Safdi. The dark matter interpretation of the 3.5-keV line is inconsistent with blank-sky observations. Science, 2020.
Engineers test a powered 'ankle exoskeleton' to make running easier
engadget.com – Ankle exoskeletons could help you run longer and faster and even serve as a new mode of transportation, according to a team of Stanford University engineers. The engineers tested a motorized exoskeleton rig that attaches around the ankle and foot and found that it made running 15 percent easier. They explained that when the exoskeleton's motor is switched on, it reduces the energy cost of running and allows the user to run longer than they're usually capable of. The device can also boost a...
Source: Kirby A. Witte, Pieter Fiers, Alison L. Sheets-Singer, Steven H. Collins. Improving the energy economy of human running with powered and unpowered ankle exoskeleton assistance. Science Robotics, 2020.
Can we trust the Oxford study on Covid-19 infections? | Adam Kucharski
theguardian.com – We don’t know exactly how many people have already been infected with the virus, but there’s no evidence it’s half the population, says epidemiologist and author Adam Kucharski
Source: Joseph T Wu, Kathy Leung, Gabriel M Leung. Nowcasting and forecasting the potential domestic and international spread of the 2019-nCoV outbreak originating in Wuhan, China: a modelling study. The Lancet, 2020.
Scientists unveil smaller, more powerful brain-machine interface
upi.com – Researchers have developed a new brain-machine interface that allows the human brain to link directly with silicon-based technologies.
Source: Abdulmalik Obaid, et al. Massively parallel microwire arrays integrated with CMOS chips for neural recording. Science Advances, 2020.
