An escape route mapping system, based on the behavior of ant colonies, could give evacuees a better chance of reaching safe harbor after a natural disaster or terrorist attack by building a map of showing the shortest routes to shelters and providing regular updates of current situations such as fires, blocked roads or other damage via the smart phones.
Researchers have found that environmental stressors– from the Trail of Tears to the Civil War– led to significant changes in the shape of skulls in the eastern and western bands of the Cherokee people. The findings highlight the role of environmental factors in shaping our physical characteristics.
Researchers have identified a new syndrome called "osteosarcopenic obesity" that links the deterioration of bone density and muscle mass with obesity.
Positron emission tomography, which looks at energy uptake in different parts of the brain, could be particularly good at determining more accurately which people in a minimally conscious state or suffering from unresponsive wakefulness syndrome, might regain consciousness.
Geologists who analyzed 40 meteorites that fell to Earth from Mars have unlocked secrets of the Martian atmosphere hidden in the chemical signatures of these ancient rocks. Their study shows that the atmospheres of Mars and Earth diverged in important ways very early in the 4.6 billion year evolution of our solar system.
A new technique has revealed the motion of energy-carrying quasiparticles, called excitons, in solid material for the first time.
A new design for nuclear plants built on floating platforms, modeled after those used for offshore oil drilling, could help avoid disasters in the future. Such floating plants would be designed to be automatically cooled by the surrounding seawater in a worst-case scenario, which would indefinitely prevent any melting of fuel rods, or escape of radioactive material.
Verano-Braga and a team from the Univ. of Southern Denmark discovered that nanosilver can penetrate our cells and cause damage.
On the scale of earth-friendly materials, you’d be hard pressed to find two that are farther apart than polyester and cork. In an unexpected twist, however, scientists are figuring out how to extract a natural, waterproof, antibacterial version of the former from the latter.
The skull of a newly discovered 325-million-year-old shark-like species suggests that early cartilaginous and bony fishes have more to tell us about the early evolution of jawed vertebrates— including humans— than do modern sharks. The new study shows that living sharks are actually quite advanced in evolutionary terms.
Scientists have created a 3-D vascular system that allows for high-performance composite materials, such as fiberglass, to heal autonomously, and repeatedly.
A small study of casual marijuana smokers has turned up evidence of changes in the brain, a possible sign of trouble ahead, researchers say.
The proportion of land used to cultivate shade grown coffee, relative to the total land area of coffee cultivation, has fallen by nearly 20 percent globally since 1996. Researchers say the global shift toward a more intensive style of coffee farming is probably having a negative effect on the environment, communities and individual farmers.
The EPA’s recommendations for treating water after a natural disaster or other emergencies call for more chlorine bleach than is necessary to kill disease-causing pathogens and are often impractical to carry out, a new study has found.
Like rings of a tree, hair can reveal a lot of information about the past. It can provide information about things like drug use, environmental toxins exposure and hormone levels. And, according to a study, it can also reveal the womb environment in which an infant formed.