Although people in early 2020 were highly cautious about COVID-19, 11 months later the public pushed the envelope on pandemic safety precautions and ignored warnings as time went on, a new University of California, Davis, study suggests.
What The Study Did: This study included a meta-analysis that combined the results of 74 studies with 2.7 million participants to estimate how common globally dementia is in people younger than age 65.
- JAMA Neurology
New research examines commuter characteristics to better understand how factors such as departure time, frequency, and commute length are associated with exposure to air pollution. Using personal air pollution monitors, the research clustered commuters to determine whether these clusters were associated with traffic pollution exposures. The study reveals that commuters that travel during rush hour have higher overall exposure to traffic-related air pollution compared to sporadic commuters, though the difference was not statistically significant.
- Environmental Research
Using time- and spin-resolved methods at BESSY II, the physicists explored how, after optical excitation, the complex interplay in the behavior of excited electrons in the bulk and on the surface results in unusual spin dynamics. The work is an important step on the way to spintronic devices based on topological materials for ultrafast information processing.
A new systematic review and meta-analysis has found that people who use cannabis are disproportionately more likely to initiate opioid use and engage in problematic patterns of use than people who do not use cannabis. But the quality of the evidence for this finding is low.
- , , University of Sydney's Matilda Centre for Research in Mental Health and Substance Use, Australian National Health and Medical Research Council
Scientists on the hunt for an unconventional kind of superconductor have produced the most compelling evidence to date that they've found one. In a pair of papers published in Science and Nature Communications, researchers at the University of Maryland's Quantum Materials Center and colleagues have shown that uranium ditelluride displays many of the hallmarks of a topological superconductor--a material that may unlock new ways to build quantum computers and other futuristic devices.