The American College of Physicians (ACP) today sent letters urging Congress to take immediate action to reduce the rate of firearms violence in the US. The letters to House and Senate leadership expressed ACP's alarm that despite multiple mass shootings across the country -- from Las Vegas to Florida -- comprehensive legislation to reduce the threat of injury or death from firearms has yet to be enacted.
The emergence of inexpensive small unmanned aircraft systems (sUASs) that operate without a human pilot, commonly known as drones, has led to adversarial groups threatening deployed U.S. forces, especially infantry units.
Strong state firearm laws were associated with lower rates of firearm homicide, firearm suicide and suicide overall.
Researchers have demonstrated a technique that can determine whether bricks -- the common building material -- have ever been near a radiological source, and identify the specific type of source, such as high enriched uranium or plutonium.
Army-led research team successfully demonstrates atomic effect first proposed more than 40 years ago.
A new technique uses existing technologies to detect potential airborne radiological materials in hours instead of days.
Using an abandoned U.S. military base in Greenland as a case study, new Brown research explores how the impact of climate change on domestic and overseas military bases could cause a host of political and diplomatic problems.
Sensors that sniff out chemicals in the air to warn us about everything from fires to carbon monoxide to drunk drivers to explosive devices hidden in luggage have improved so much that they can even detect diseases on a person's breath. Researchers from Drexel University and the Korea Advanced Institute of Science and Technology have made a discovery that could make our best 'chemical noses' even more sensitive.
A highly versatile deposition process already used to manufacture aircraft parts and other expensive, delicate surfaces is now 3-D modeled to show the effects of temperature for the first time. Cold gas dynamic spray (CGDS) can bond supersonic micron-sized metal particles to a metal or polymer surface without damaging it. This 3-D model of a single particle bonding to a surface starts unlocking a grand high-technology challenge several decades in the making.
In a new study, USC Viterbi School of Engineering professors used computer-based models to identify mechanisms or 'strategies' used by bacterial spores to evade attack from extreme temperatures, chemicals and radiation. Using complex mathematical techniques to examine spores at the molecular level, the team also determined the optimal conditions for killing harmful bacteria.