Dangers of policing have dramatically declined since 1970 with a 75 percent drop in police officer line-of-duty deaths. In the context of nearly 50-year monthly trends, the study also shows a statistically significant decline in felonious killings of police following the Ferguson effect and Michael Brown's death in 2014, which directly contradicts the war on cops' theory.
By analyzing thousands of declassified images from Cold War-era U2 spy missions, Emily Hammer of the University of Pennsylvania and Jason Ur of Harvard University discovered archaeological features like prehistoric hunting traps, 3,000-year-old irrigation canals, and hidden 60-year-old marsh villages. They also created an online tool that allows other researchers to identify and access the photos for the first time.
Trying to find ancient DNA, let alone prove that the ancient DNA is ancestral to a population living today, is extremely challenging. A new study in Molecular Biology and Evolution (MBE) adds to this understanding by reconstructing artificial genomes with the analyses of the genome of 565 contemporary South Asian individuals to extract ancient signals that recapitulate the long history of human migration and admixture in the region.
In a study of 200 years of pre-industrial Quebecois genealogical history, researchers at Brown found that fertility-related changes in natural selection during the pre-industrial era paved the way for economic and technological progress.
The chrome plating on the Terracotta Army bronze weapons -- once thought to be the earliest form of anti-rust technology -- derives from a decorative varnish rather than a preservation technique, finds a new study co-led by UCL and Terracotta Army Museum researchers.
In UConn researcher Elic Weitzel's recent publication, he hopes to shed light on the question regarding the adaptation farming in early populations in the Eastern United States.
As political leaders debate the future of the US health care system, a pair of health financing experts discovered that all of the current proposals -- from Medicare for All to 'repeal and replace' -- have been circulating in various forms since the 1940s. For example, today's 'public option' plans that would offer individuals the option to buy-in to Medicare or Medicaid were first proposed by two Republicans, Sen. Jacob Javits and Rep. John Lindsay in the early 1960s.
Using newly discovered archival materials, Igor Fedyukin of the Higher School of Economics, in collaboration with Robert Collis (Drake University) and Ernest A. Zitser (Duke University), sheds light on the significance and context surrounding a Spanish diplomat's initiative which sought to establish an informal men's club called the 'Order of the Anti-Sober' at Peter II's court. Their study was published in The International History Review.
Prehistoric rock paintings are a source of fascination. Aside from their beauty, there's deep meaning in these strokes, which depict ancient rituals and important symbols. Scientists now describe use of 'X-ray vision' to gain brand-new insights about the layers of paint in rock art in Texas without needless damage. The researchers will present their results today at the American Chemical Society Spring 2019 National Meeting & Exposition.
Study provides insight into possible heritage apple cultivars that could be grown in Wyoming and also in other states with similar harsh growing conditions.