People who regularly use psychoactive substances report experiencing a variety of negative impacts since the COVID-19 pandemic began, including increased usage and fear of relapse or overdose, highlighting the need for improved supports and services, including better access to safe supply programs, according to a new CAMH survey published in the International Journal of Drug Policy.
Concern tends to ratchet up a notch when pollution enters the river runoff discussion on a national scale, specifically when smaller, navigable intrastate bodies of water push pollution into larger interstate waters often involved in commerce (i.e. the Mississippi River, Great Lakes, Ohio River).
Researchers at the University of Jyväskylä, Finland, highlight how the struggles caused by the COVID-19 pandemic can guide us towards an equitable use of our shared environment and a transition towards sustainability.
A real-life forensic puzzle inspired University of Illinois at Chicago and Iowa State University researchers to explore the physics involved, and in Physics of Fluids, they present theoretical results revealing an interaction of the incoming vortex ring of propellant muzzle gases with backward blood spatter. A detailed analytical theory of such turbulent self-similar vortex rings was given by this group in earlier work and is linked mathematically to the theory of quantum oscillators.
To search for answers about how blood droplets from a gunshot wound can reverse direction while in flight, researchers explored the influence of propellant gases on blood backspatter. In Physics of Fluids, they report using numeric modeling to capture the behavior of gun muzzle gases and predict the reversal of blood droplet flight, which was captured experimentally. Their experiments also show the breakup of blood droplets, a future extension of their modeling efforts.
A new study classifies different types of wildlife traffickers and sellers in two of Central Africa's growing urban centers, providing new insight into the poorly understood urban illegal wildlife trade.
Monitoring environmental compliance is a particular challenge for governments in poor countries. A new machine learning approach that uses satellite imagery to pinpoint highly polluting brick kilns in Bangladesh could provide a low-cost solution. (Watch video: https://www.youtube.com/watch?v=LHvRgKmJOK8)
It will take until at least 2080 before women make up just one-third of Australia's professional astronomers, an analysis published today in the journal Nature Astronomy reveals.
A new Penn State study found that a majority of those surveyed supported mandates that required students and teachers to be vaccinated against COVID-19. However, more people supported broader vaccine mandates that don't specifically include those against COVID-19.
One of the most comprehensive statistical analyses of drivers of food insecurity across 65 countries has concluded that household income consistently explains more discrepancy in food security than any other factor, including agricultural land resources and production.