Scientists compared fecal samples from surfers and non-surfers to assess whether the surfers' guts contained E. coli bacteria that were able to grow in the presence of the antibiotic cefotaxime. Cefotaxime has previously been prescribed to kill off these bacteria, but some have acquired genes that enable them to survive this treatment. The study found that 13 of 143 (9 percent) of surfers were colonized by these resistant bacteria, compared to just four of 130 (3 percent) of non-surfers swabbed.
You don't have to be perfectly organized to pull off a wave, according to scientists. Using a set of gyroscopes linked together, physicists explored the behavior of a material whose structure is arranged randomly, instead of an orderly lattice. They found they could set off one-way ripples around the edges, much like spectators in a sports arena -- a 'topological wave,' characteristic of a particularly unusual state of matter.
Bioengineers have developed a tissue-based soft robot that mimics the biomechanics of a stingray. The new technology could lead to advances in bio-inspired robotics, regenerative medicine and medical diagnostics.
In a technology first, a team of engineers has demonstrated fully autonomous X-ray navigation in space -- a capability that could revolutionize NASA's ability in the future to pilot robotic spacecraft to the far reaches of the solar system and beyond.
The digital reconstruction of the skull of a 200-million-year-old South African dinosaur, Massospondylus, has made it possible for researchers to make 3-D prints and in this way facilitate research on other dinosaurs all over the world.
If lemurs were on Facebook, Fern would have oodles of friends, liking and commenting on their posts. Captain Lee, on the other hand, would rarely send a friend request. These are just two of the distinct personalities discovered in a recent study of group dynamics in ring-tailed lemurs, primate cousins that live in groups of up to two dozen on the island of Madagascar.
A flower identified as Lecanorchis nigricans has been revealed to be a different identity, Lecanorchis nigricans var. patipetala. Both species are self-pollinating, but the flowers of the true L. nigricans never open.
Bad weather affects US voter turnout and election outcomes with past research demonstrating that the Republican Party has the advantage. A new study finds that the Republican Party's advantage when it rains may be due in part to voters changing their partisan preference that day.
Scientists examined and analyzed hundreds of pelican spiders both in the field in Madagascar and through study of pelican spiders preserved in museum collections. Their analysis sorted the spiders studied into 26 different species -- 18 of which have never before been described. The new species add to scientists' understanding of Madagascar's renowned biodiversity, and will help scientists investigate how pelican spiders' unusual traits have evolved and diversified over time.
When babies crawl, their movement across floors, especially carpeted surfaces, kicks up high levels of dirt, skin cells, bacteria, pollen, and fungal spores, a new study has found. The infants inhale a dose of bio bits in their lungs that is four times (per kilogram of body mass) what an adult would breathe walking across the same floor.
Astronomers have made the first definitive interstellar detection of benzonitrile, an intriguing organic molecule that helps to chemically link simple carbon-based molecules and truly massive ones known as polycyclic aromatic hydrocarbons. This discovery is a vital clue in a 30-year-old mystery: identifying the source of a faint infrared glow that permeates the Milky Way and other galaxies.
Researchers have found eight sites where thick deposits of ice beneath Mars' surface are exposed in faces of eroding slopes. The ice was likely deposited as snow long ago. The deposits hold clues about Mars' climate history and also may make frozen water more accessible than previously thought to future robotic or human exploration missions.
Scientists have used a new research approach to show that warming temperatures are turning one of the world's largest sea turtle colonies almost entirely female, running the risk that the colony cannot sustain itself in coming decades, newly published research concludes.
An implanted, programmable medical robot can gradually lengthen tubular organs by applying traction forces -- stimulating tissue growth in stunted organs without interfering with organ function or causing apparent discomfort, report researchers.