Did coronavirus mutate from a virus already prevalent in humans or animals or did it originate in a laboratory? As scientists grapple with understanding the source of this rapidly spreading virus, the Grunow-Finke assessment tool (GFT) may assist them with determining whether the coronavirus outbreak is of natural or unnatural origins.
Researchers have developed a technique for determining the historical location and distribution of radioactive materials, such as weapons grade plutonium. The technique may allow them to use common building materials, such as bricks, as a three-dimensional 'camera,' relying on residual gamma radiation signatures to take a snapshot of radioactive materials even after they've been removed from a location.
Researchers have used artificial intelligence to detect Vietnam War-era bomb craters in Cambodia from satellite images - with the hope that it can help find unexploded bombs. The new method increased true bomb crater detection by more than 160 percent over standard methods.
Nontrauma center hospitals were the nearest hospitals to most of the mass shootings (five or more people injured or killed by a gun) that happened in the US in 2019. This study examined distances to trauma centers and nontrauma center hospitals for 187 mass shootings.
A new multinational study incorporating the latest models of global climate, crop production and trade examines the possible effects of a nuclear exchange between two longtime enemies: India and Pakistan. It suggests that even a limited war between the two would cause unprecedented planet-wide food shortages and probable starvation lasting more than a decade.
Even a limited nuclear war could have dangerous effects far beyond the region that is fatally hit. It would result in global cooling that substantially reduces agricultural production in the world's main breadbasket regions, from the US, to Europe, Russia, and China. The particular effect on food security worldwide including trade responses has now for the first time been revealed by an international team of scientists in a study based on advanced computer simulations.
A war between India and Pakistan using less than 1% of nuclear weapons worldwide could lead to the worst global food losses in modern history, according to a Rutgers co-authored study that is the first of its kind. Sudden global cooling from a limited nuclear war along with less precipitation and sunlight 'could disrupt food production and trade worldwide for about a decade -- more than the impact from anthropogenic climate change by late (21st) century,' the study says.
Depending on whether uranium is released by the civil nuclear industry or as fallout from nuclear weapon tests, the ratio of the two anthropogenic, i.e. man-made, uranium isotopes 233U and 236U varies. These results were lately found by an international team at the University of Vienna and provides a promising new "fingerprint" for the identification of radioactive emission sources. As a consequence, it is also an excellent environmental tracer for ocean currents.
ORNL Story Tips: Antidote chasing, traffic control and automatic modeling
This research letter looked at two categories of firearm laws to prevent child access and their association with pediatric firearm fatalities throughout the United States from 1991 to 2016.