First soybeans grown in space return to Earth
...ng walked on the moon in 1969, he wore 25 separate layers 23 of those layers were DuPont materials. In 1984, Pioneer corn seeds were on board a Challenger shuttle launch. The ...November GEOLOGY and GSA TODAY media highlights
...ather than chemical--the mobilization of countless layers of lava shards from the volcano flanks, highlighti...e to demonstrate that multiple chemically distinct layers are preserved in individual cell walls from plant fossils as old as 400 million years (the oldest kn...Science picks leads, feeds and story seeds (October 2002 edition)
...eismic "waves" move through the deep sand and clay layers of sediment that are characteristic of the Mississippi. The explosions will create seismic waves similar to what happens during a real earthquake. Scientists will use newly installed strong motion seismographs part of a national first-line of defe...Robots powered by the ocean itself
... in their own buoyancy or by different temperature layers in the ocean--will be tested operationally off Southern California this winter. Both gliders were developed with support from the Office of Naval Research. Webb Research of East Falmouth, MA, a company with long experience designing and building o...UT Southwestern researchers find protein that both instigates, inhibits heart growth in mice
...tures of the ventricular walls, thin heart chamber layers and blood in the fibrous tissue surrounding the heart. After birth, there were elevations as much as 19-fold in the number of growing cardiac muscle cells in mutant compared to wild-type mice, and gene profiling showed that 179 genes had elevated e...Rice, Brookhaven physicists decode initial stage of cell fusion
...each cell. All biological membranes consist of two layers of lipid molecules, called a bilayer, that have a ..., maps of the atomic structure of the phospholipid layers in the membranes. By dehydrating a stack of membranes, the scientists were able to induce membrane f...Chicago researchers find why uncircumcised men have more HIV
...by Chicago researchers shows that internal mucosal layers of foreskin are more susceptible to HIV infection than cervical tissue or the external layers of foreskin, which explains why uncircumcised men seem to be at much higher risk for HIV acquisition...UCSD researchers fabricate tiny 'smart dust' particles
...f computer chips, then "encode" them by generating layers of nanometer-thick porous films on the wafers using a special electrochemical etch. This layered structure on the dust-sized particles, which are created by breaking apart the wafer using ultrasound, imparts unusual optical properties to the particle...For elephants, its not just their ears and trunk that make them unique on land
...opsies and confirms that the animal's two pleural layers are firmly adherent although it is possible to separate them with some difficulty by pushing a finger or blunt instrument through the soft connective tissue joining the two layers. No satisfactory explanation has been advanced for the peculiar anato...A unique hemoglobin may help the baby kangaroo's journey to the mothers pouch
...rebral cortex possesses only one or two of the six layers it will need in adulthood. In many ways, the newborn Tammar is equivalent to a human embryo at seven weeks of gestation. The blood of the newborn Tammar is embryonic in type and this persists for several days after birth. The red blood cells are all...Scientists confirm age of the oldest meteorite collision on Earth
...les apart, both sites contain 3.5-billion-year-old layers of rock embedded with "spherules" tiny spherical ...ggested that these iridium- and spherule-rich rock layers were produced by fallout from a meteorite, they were greeted with some skepticism primarily from ge...Dutch researchers receive award for combating terrorism with chemistry
...s stacked in an opposite direction. The fibers and layers are bonded together with resins. Protective gear -- including armored cockpit doors, lightweight vehicle armor panels, bullet-resistant vests and military helmets -- made with Dyneema fibers can stop, deform and dissipate energy from high-velocity bu...Satellites see big changes since 1980s in key element of ocean's food chain
... when sunlight is optimal and nutrients from lower layers of the ocean get mixed up to the surface. Higher sea surface temperatures can reduce the availability of nutrients by creating a warmer surface layer of water. A warmer ocean surface layer reduces mixing with cooler, deeper nutrient-rich waters. Thro...Muddy Mayan mystery made clearer by researchers working in the bajos
...nd of the Preclassic era, this layer was buried in layers of clay sediment. Judging from these layers, the team says, farming began to deforest the landscape as the Maya population escalated. With the forest cleared, erosion accelerated. Rain carried sediment into the bajos, where "they would become plugge...Clues to the evolution of photosynthesis
...vironments where light reaches anoxic (low-oxygen) layers of water containing reduced sulfur compounds. When TIGR researchers analyzed the microbe's single circular chromosome, they identified numerous genes that may play novel roles in photosynthesis or other processes that make use of the energy of light....Evidence that adults stem cells differentiate like embryonic stem cells published in Nature
...and in vivo into cells of all three embryonic germ layers (endoderm, ectoderm and mesoderm) in similar manner as embryonic stem cells (ES cells). SCI Director Catherine Verfaillie, M.D., and her colleagues call these cells multipotent adult progenitor cells (MAPCs). The results of the research are published...Study of fossils found in arctic shows plants more developed at earlier time
...e team dated specimens by finding them in the same layers as several tiny invertebrate fossilized animals such as graptolites, which under the microscope resemble band saw blades, and conodonts, which resemble miniature jaws and teeth and represent the mouthparts of primitive vertebrates. Such animal remain...DuPont to launch soybeans into space
...ng walked on the moon in 1969, he wore 25 separate layers 23 of those layers were DuPont materials. In 1984, Pioneer corn seeds were on board a Challenger shuttle launch. The ...New research questions evidence for earliest life on earth
...ously for about two billion years, and not as thin layers of sediment deposited on a long vanished sea floor...reserved graphite represents past life. The white layers are thought to be veins of quartz that were subsequently introduced into the green bands. Recent s...Cosmic impacts implicated in both the rise and fall of dinosaurs
...UNSWICK/PISCATAWAY, N.J. New abilities to detect layers of "space dust" in the earth's crust are building ...and magnetic fields in four corresponding sediment layers in the Newark Basin. The team published its findings, "Ascent of Dinosaurs Linked to an Iridium Anom...