Bumblebees infected with a common intestinal parasite are drawn to flowers whose nectar and pollen have a medicinal effect, a Dartmouth-led study shows. The findings suggest that plant chemistry could help combat the decline of bee species.
Vehicle crashes are the largest cause of death among police in the United States, but what conditions contribute to the risk faced by officers? The first quantitative study of the issue finds a few surprises, including that police face an elevated risk of being injured in a collision when they are sitting in a stationary car, just as well as when they are responding to an emergency call with their siren blaring.
Restoring oyster reefs is not an easy task, but by digging deep and examining centuries-old reefs, marine restoration professionals may stand a better chance at bringing oysters back, said a new Cornell University and Paleontological Research Institution study published in the August issue of the Journal of Shellfish Research.
A new study examining changes in gun policy in two states finds that handgun purchaser licensing requirements influence suicide rates. Researchers estimate that Connecticut's 1995 law requiring individuals to obtain a permit or license to purchase a handgun after passing a background check was associated with a 15.4 percent reduction in firearm suicide rates, while Missouri's repeal of its handgun purchaser licensing law in 2007 was associated with a 16.1 percent increase in firearm suicide rates.
Electrical and computer engineers have developed a new technique for creating less-expensive, low-power embedded systems -- the computing devices found in everything from thermostats to automobiles.
Scientists look back 10,000 years to rewrite history of one of humanity's oldest farm animals; Goal is to aid herders eager for more productive breeds.
The first study to test the skills of FBI agents and other law enforcers who have been trained in facial recognition has found they perform better than the average person or even computers on this difficult task. The UNSW Australia-led research suggests trained facial forensic examiners identify faces use analytical methods. CCTV, mobile phone images and automatic face recognition technology has made identification of suspects from facial images an important source of evidence.
Scientists developed a new way to produce images from echolocation, uncovering a new set of cues available to bats and a new phenomenon of 'acoustic camouflage' available to prey.
Cities should feature compact development alongside large, contiguous green spaces to maximize benefits of urban ecosystems to humans, research led by the University of Exeter has concluded.
A Purdue University study presents a novel approach for identifying vertebrate populations at risk of extinction by estimating the rate of genetic diversity loss, a measurement that could help researchers and conservationists better identify and rank species that are threatened or endangered.