Japanese researchers are poised to reboot the field of aromatic-fused porphyrin sensitizers for dye-sensitized solar cells, the most efficient solar technology available at present.
The sea water, beaches and sediments on the Tarragona coast contain quantities of plastic similar to those in a big city like Barcelona. And more than half are clothing fibres from washing machines. This is one of the main findings of a study carried out by researchers from the URV's research group Tecnatox and presented at a congress in Helsinki.
Firearm injuries kill more American children and teens than anything else, except automobile crashes. But research on how those injuries happen, who's most likely to suffer or die from one, or what steps would prevent them, has lagged behind research on other causes of death. Now, as more researchers and funders appear interested in pediatric firearm injury research, a team of experts has published the most pressing questions and called for studies to address them.
Examining to what extent firearm ownership and accessibility may be associated with suicide risk among US Army soldiers was the aim of this psychological autopsy study. The study included 135 soldiers who died by suicide on active duty between 2011-2013; firearms were the most common method with 61 of 111 soldiers who had a documented method of injury dying this way.
Researchers have demonstrated that vehicle armor using composite metal foam (CMF) can stop ball and armor-piercing .50 caliber rounds as well as conventional steel armor, even though it weighs less than half as much. The finding means that vehicle designers will be able to develop lighter military vehicles without sacrificing safety, or can improve protection without making vehicles heavier.
North Korea detonated a nuclear device in 2017 equivalent to about 250 kilotons of TNT, a new study in AGU's Journal of Geophysical Research: Solid Earth estimates. The 2017 test was an order of magnitude larger than the previous five underground tests at North Korea's Punggye-ri test site, according to the new study, which took into account the geology of the test site to estimate the size of the explosions from distant seismic recordings of the blasts.
This randomized clinical trial in a university laboratory examined the effects of video games with weapons on children's behavior when they found a real gun.
Firearms are a leading contributor to mortality in men aged 15-34 years in the USA, Mexico, Brazil, and Colombia, according to an observational study using national data for 106.3 million deaths, including 2.5 million firearm deaths in these 4 countries, published in The Lancet Public Health journal.
An increase in the number of firearm owners who live with children who lock up all their household guns could be associated with a reduction in youth firearm deaths by suicide and unintentional injury.
During WWI, William Lawrence Bragg led the development of an acoustic method to locate enemy artillery, work that was so successful that it was soon used widely throughout the British army. The method, known as sound ranging, was also adopted by the US Army when they joined the war, and earned Bragg a military decoration from the British armed forces. Bragg's story will be presented at the 177th ASA Meeting, May 13-17, 2019.