Manchester University helps with pharaoh DNA analysis
...in a coffin inscribed for a royal nurse, the other stretched out on the floor. In June, Dr Zahi Hawass, Secretary General of the Supreme Council of Antiquities, held a news conference in Cairo to announce that this second mummy was that of the lost queen, pointing to the tooth as evidence. The preliminary ...Unraveling the physics of DNA's double helix
...een anticipated, the researchers reported. As they stretched the adenine chains with increasing force, the researchers noted two placesat 23 and 113 pico-Newtons--where their measurements leveled off. "Those plateaus reflect the breaking and unfolding of the helix," Marszalek explained. With no bonds betwee...Changing climate will challenge Northeast agriculture, CU expert warns
...e will add economic stress to family farms already stretched to the limit." The Northeast can also expect more frequent summer heat waves that could compromise the health of crops, livestock and humans, said Wolfe. What will happen in the future, he said, depends "on whether we as a society follow the business...UCSB researchers show how to make polymeric micro- and nanoparticles
...edded in a polyvinyl alcohol film and the film was stretched to create voids around the beads. These voids were then filled by liquefying the beads using heat or solvent. From these two simple techniques, more than 20 different shapes were formed, ranging from simple rods and eggs to lenses, diamonds, food-sha...Essential tones of music rooted in human speech
... is rather like an organ pipe that can be pinched, stretched and widened on the fly, Purves said. English speakers generate about 50 different speech sounds this way. Yet despite the wide variation in individual human anatomy, the speech sounds produced by different speakers and languages produce the same v...Bat flight generates complex aerodynamic tracks
...ple mechanical wings of flexible, elastic material stretched over support rods, to improve the aeronautical performance of smaller airborne vehicles. "Bats have relied on very flexible wings for 50 million years to propel and lift themselves into the sky," Spedding said. "We still have a lot more to learn ...UD scientist wins NSF career award for tissue engineering research
...otein molecules in your muscle--unfolds or becomes stretched out," Jia noted. "As the energy from the force dissipates, the protein molecules recover and fold back up." Jia is working to mimic this responsiveness to force by combining spring-like, coiled polymers with noncovalent interactions, which can be d...Little lifesavers -- Nanoparticles improve delivery of medicines and diagnostics
...e to control the sizes of the nanoparticles. The stretched hydrophilic polymer layer keeps the particles from clumping together and prevents recognition by the immune system so that the particles can circulate through the bloodstream. The hydrophobic interior of the particles ensures that they are not immedi...Deflecting damage: Flexible electronics aid brain injury research
...eir normal activity. The membrane is then suddenly stretched and returned to its original form. Having withstood the shock, the electrodes embedded in the membrane continue to monitor the cellular activity, providing a before and after picture of traumatic brain injury. Future work will continue to refine th...Engineering the heart piece by piece
... the same time, while allowing each specimen to be stretched using a specially made device that can both apply forces and measure the forces generated when the tissue begins contracting and beating on its own. In the new paper, the team reports that it has achieved a doubling of the contracting force in just s...New UA / private partnership appraises climate and environmental risks by address
...e public library in Telluride, Colo. One-half hour stretched to three -- and CASL was born. The two agreed that CASL's primary mission would be to advance the public's understanding of climate change and environmental science. Overpeck said, "When he first came to me, he was really pushing the idea that we c...Deadly hypoxic event finally concludes
...d books. In 2006, the low-oxygen waters off Oregon stretched further north along the coast, reached closer to shore, and were thicker than any event previously detected. The event was four times larger than any previous episode and lasted four times as long. More important, the oxygen levels were by far the lo...Stretching bone marrow stem cells pushes them towards becoming blood vessel
...hymal stem cells onto a silicone membrane that was stretched longitudinally once every second. It was a cellula...es on the effects of mechanical strain, cells were stretched in all directions. However, he pointed out that cells in the walls of a blood vessel are pulled in a...ACS News Service Weekly PressPac -- Sept. 13, 2006
...ult bone marrow can be repeatedly and mechanically stretched -- in a manner similar to a taffy pull -- into patterns that could potentially transform them into smooth muscle cells similar to blood vessel tissue. These newly formed smooth muscle cells, which can expand and contract, could be used as a compone...Stem cells: Chemistry paves way toward promising therapies
...ult bone marrow can be repeatedly and mechanically stretched -- in a manner similar to a taffy pull -- into patterns that could potentially transform them into smooth muscle cells similar to blood vessel tissue. These newly-formed smooth muscle cells, which can expand and contract, could be used as a component...Blood clot fibers more elastic than spider's web
...tion because people hypothesized that these fibers stretched but broke much easier. In some cases, fibrin fibers had the ability to be stretched more than six times their length before they broke." Blood clots are a three-dimensional network o...Beyond lipids: understanding the mechanics of atherosclerosis
...erlying blood vessel tissue in the body. They then stretched endothelial cells 10 percent of their length 60 ti...tery in response to heart beats. Cells that were stretched back and forth along one axis exhibited a healthy response: the level of JNK rose and quickly return...FSU research produces images of AIDS virus that may shape vaccine
...virus samples were suspended in a thin liquid film stretched across the holes of a small copper grid and then flash-frozen, creating a solid form of ice that is more like clear glass than the typical crystalline form in ice cubes. Once inside the electron microscope, electrons bombarded the samples from myriad...Nanosecond-scale release of stinging jellyfish nematocysts
...e is caused by the release of energy stored in the stretched configuration of the collagen-polymer of the nematocyst capsule wall. This ingenious solution allows the cellular process of vesicle exocytosis to release kinetic energy in the nanosecond range by a powerful molecular spring mechanism....Through a satellite darkly: Night views of European seas improve ESA ocean heat map
...previous day, with the daily generation time being stretched back to 18:00 instead of 07:00 UTC. And significantly, only satellite data acquired during local night are now being utilised for the product. Satellite instruments can only measure the 'skin' SST the top ten to 20 microns of water rather than the...