GPS
Men and women whose thighs are less than 60cm in circumference have a higher risk of premature death and heart disease, according to research published on bmj.com today. The study also concluded that individuals whose thighs are wider than 60cm have no added protective effect.
ANN ARBOR, Mich.---With all the hype about beneficial antioxidants in everything from face cream to cereal bars, you'd think their targets---oxygen radicals---must be up to no good. It's true, the buildup of oxygen radicals and other reactive oxygen species (ROS) in cells contributes to aging and possibly to diseases such as cancer and Alzheimer's.
Does an exciting but controversial new model of quantum gravity reproduce Einstein's theory of general relativity?
With nothing to guide their way, people attempting to walk a straight course through unfamiliar territory really do end up walking in circles, according to a report published online on August 20th in Current Biology, a Cell Press publication. Although that belief has pervaded popular culture, there has been no scientific evidence to back it up until now, according to the researchers.
MADISON, WI, AUGUST 10, 2009 -- Grassed waterways are placed in agricultural fields where runoff water tends to concentrate because they can substantially reduce soil erosion. Mapping techniques that help identify where erosion channels will likely form could help farmers and conservation professionals do a better job of designing and locating grassed waterways in agricultural fields.
An experimental atomic clock based on ytterbium atoms is about four times more accurate than it was several years ago, giving it a precision comparable to that of the NIST-F1 cesium fountain clock, the nation's civilian time standard, scientists at the National Institute of Standards and Technology (NIST) report in Physical Review Letters.*
Tropical cyclone Nargis made landfall in the Asian nation of Myanmar on May 2, 2008, causing the worst natural disaster in the country's recorded history -- with a death toll that may have exceeded 138,000.
How can rescue units be better protected during disaster operations or avalanche victims be found quicker? A new localization system connects satellite-based positioning systems with terrestrial locating aids and situation-dependent sensory systems.
By combining the best of two different distance measurement approaches with a super-accurate technology called an optical frequency comb, researchers at the National Institute of Standards and Technology (NIST) have built a laser ranging system that can pinpoint multiple objects with nanometer precision over distances up to 100 kilometers.
When handling an emergency, firefighters are exposed to a number of risks: noxious fumes, blocked escape paths, potential building collapse. The safety of emergency crews and the efficient locating of persons buried under the rubble are key issues, and not only in the event of a major catastrophe, such as the collapse of the Cologne Historic Archives on March 3, 2009.
Researchers have developed a new statistical model that simulates human mobility patterns, mimicking the way people move over the course of a day, a month or longer. The model, developed by scientists at North Carolina State University and the Korea Advanced Institute of Science and Technology (KAIST), is the first to represent the regular movement patterns of humans using statistical data.
Children of baby boomers aren't the only ones who have taken to setting up home far from where their parents live. A new study published this week in the Proceedings of the National Academy of Sciences documents how larval dispersal connects marine fish populations in a network of marine protected areas - information that is critical for fisheries managers.
New England lobstermen have gone high tech by adding low-cost instruments to their lobster pots that record bottom temperature and provide data that could help improve ocean circulation models in the Gulf of Maine.
A new Washington state program designed to help victims of domestic violence increase their knowledge of how to use technology safely and help minimize the risks that technology can pose when one is in an abusive relationship has been evaluated as highly successful.
Cold Spring Harbor, N.Y. -- A key item in the developmental agenda of a plant leaf is the establishment of an axis that makes a leaf's top half distinct from its bottom half.
