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Science News Archive 2020 - Page 95


Page 95 of 512

Reviewing multiferroics for future, low-energy data storage

A new UNSW study comprehensively reviews the magnetic structure of bismuth ferrite (BiFeO3), a multiferroic material that displays both magnetic and electronic ordering at room temperature. This unique property allows for low-energy switching in data storage devices, making it a promising material for future, low-energy data storage.

New tool can diagnose strokes with a smartphone

Researchers have developed a machine learning model that analyzes speech and facial movements to diagnose strokes with high accuracy, potentially saving valuable time in diagnosing the condition. The tool was tested on over 80 patients and achieved 79% accuracy comparable to clinical diagnostics by emergency room doctors.

Antiretroviral therapy can't completely stop accelerated cell aging seen in HIV

A new study by UCLA researchers found that antiretroviral therapy given over two years was unable to completely restore age-appropriate epigenetic patterns in HIV-infected adults. This suggests that even successfully treated HIV-infected individuals are at an increased risk for early development of diseases commonly associated with aging.

OSIRIS-REx TAGs surface of asteroid Bennu

The OSIRIS-REx mission successfully collected samples from the surface of asteroid Bennu, with the sampling head touching down within three feet of the targeted location. The majority of sample collection occurred within the first 3 seconds, and the spacecraft spent approximately 5 of the 6 seconds of contact collecting surface material.

For the first time: Realistic simulation of plasma edge instabilities in tokamaks

Researchers at Max-Planck-Institut für Plasmaphysik (IPP) have successfully simulated plasma edge instabilities in tokamaks, revealing trigger and course of instability. The simulation matches experimentally observed values, providing a crucial step towards predicting and avoiding ELM instabilities in future fusion devices.

AI detects hidden earthquakes

A new AI-based method has been developed to detect small, imperceptibly tiny earthquakes that occur on the same faults as bigger earthquakes. This technology could provide insights into how earthquakes interact and spread out along the fault, allowing for a clearer view of earthquake patterns.

SourceStanford University·JournalNature Communications·DateOct 22, 2020

Eliminating COVID-19: What the world can learn from NZ and Taiwan

Taiwan and New Zealand eliminated community transmission of COVID-19 through early action, robust surveillance, and strong public health infrastructure. Effective measures included mask mandates, contact tracing, and quarantine, with Taiwan's response being particularly effective due to its well-planned pandemic preparedness.

SourceUniversity of Otago·JournalThe Lancet Regional Health - Western Pacific·DateOct 22, 2020

Bat-winged dinosaurs that could glide

Two small dinosaurs, Yi and Ambopteryx, had bat-like wings but struggled to fly, instead gliding between trees. Their unique wing membranes allowed them to glide, but not powered flight. The study supports that dinosaurs evolved flight in multiple ways before modern birds evolved.

SourceMcGill University·JournaliScience·DateOct 22, 2020

A new technique predicts how earthquakes would affect a city's hospitals

A new methodology helps disaster preparedness officials in large cities create regional contingency plans to ensure emergency responders can get patients to likeliest-to-stay-open hospital facilities after a quake. The technique estimates death and injury risks, projects hospital damage, and maps best routes for patient transportation.

SourceStanford University School of Engineering·JournalNature Communications·DateOct 22, 2020