Promiscuous Plants May Spread Genes To Weeds
...ests or theability to produce lots of seeds, could pass these genes to their weediercousins producing hybrid strains of super-weeds, says Joy Bergelson, assistantprofessor of ecology and evolution at the University of Chicago. Her findingswill be reported in the September 3 correspondence pages of Nature...Cattle Diets Could Control E. Coli Danger
...ses the chance that at least some "E. coli " could pass through thegastric stomach of humans," Russell says. "The carbohydrates of hay are not soeasily fermented, and hay does not promote either the growth or acid resistanceof "E. coli". When we switched cattle from grain-based diets to hay for onlyfive...Team Solves X-ray Structure Of Powerful Enzyme
...ls by generating "second messengers,"which in turn pass them along to proteins that initiate and control variouskinds of cellular activity. "The enzymes regulate a cascade of events related to almost every aspect of cellfunction in our bodies, including the ability of cells to move and secreteneurotransm...Researchers Grow Healthy Human Placental Cells For Drug Research
...the means to observe what happens to drugs that pass through a healthy placenta, not excised placental tumors or aborted placental tissue which are normally used in the laboratory. Douglas Kniss, associate professor of obstetrics and gynecology at Ohio State, and Teng Ma, a graduate stude...Smoke breathes new life into a forest
...f the seed have a membrane which allows water to pass through but not larger particles Smoke triggers germination directly by penetrating the seed, as well as indirectly, by vapor or liquid transfer from soil to seeds. The scientists found, within the smoke-stimulated plants, that a variety of ...AAAS Annual Meeting And Science Innovation Exposition
...Proper credentials are required to receive a press pass in the AAAS newsroom headquarters. These credentials include: a recognized press card, a current National Association of Science Writers (NASW), Canadian Science Writers Association (CSWA), International Science Writers Association (ISWA), or Societ......tem growth may be a useful andcost-effective first pass at sifting through thousands of potentiallytherapeutic compounds....Children, Pets Who Swallow Post-1982 Pennies At Risk For Stomach Upset, EvenUlcers
...a. "Kids ingest coins all the timeand they usually pass through the stomach and intestinal tract without incident.So we wanted to investigate what happened." The researchers conducted a series of experiments in which they bathedpennies in a solution of stomach acid (hydrochloric acid). Pennies min...Method May Be Key In Combating Diarrhea In Animals And Children
... "The virus would bind to thissoluble receptor and pass right on through the intestinal tract and not bind tothe host cell. We think this could be a viablealternative -- or an effective addition -- to a vaccine that targets the virus." Rotavirus diarrhea is a worldwide killer of children, accounting for a...Scientists Describe Structure Of An Enzyme That Uses Iron To Make Hydrogen
... series ofreactions between the iron clusters that pass electrons, like a molecular bucketbrigade, towards the 'cap' of the mushroom. The 'cap' contains the active siteof the enzyme, where the final reaction takes place. At the active site, more clusters of iron atoms introduce electrons, twoat ...Life In Womb Determines Adult Health
...t processes. 9.) The effects of programming might pass across generations by mechanisms thatdo not involve changes in the genes. 10.) Programming often has different effects in males and females....Largest Acoustics Meeting In History Expected
...at the Nanometer Scale. Studying how sound waves pass through materials at the atomic and molecular level can give important information on a material's basic properties, such as its elasticity. At session 2aPAb, researchers will present new methods that make this possible for the first time. These me...In The Genes: Extra Belly Fat, Insulin Resistance Linked
...raits. A gene that plays a role in a disease will pass from the parent with the geneto some of the couple's children. By evaluating how often parents and childrenshare a trait such as insulin resistance, researchers estimate the likelihoodthat genes underlie the trait. The pattern of insulin resistance i......eliver cancer-fighting drugs. But some agents that pass through the firstbarrier apparently get caught on ...out theproperties that allow the stealth agents to pass through both barriers. The work with viral vectors is important beca....... In humans, one of the cellsurface receptors that pass signals to NF-kappa B is the receptor for thecytokine interleukin-1 (IL-1), which among other things is known to inducefever. Researchers soon realized that the protein Dorsal, activated by Tollreceptors in the fruit flies, is structurally similar to...How Can You Tell Whether Corn Is Fungus-Ridden?
... kernels can be heated andtested with TIRS as they pass by on a factory production line. Greene does not envisage either FTIR-PAS or TIRS replacing thefluorescence test. "We don't know why yet but the different approaches seem tomiss different infected grains." A combination of the two could wee...Bees The Buzz In Landmine Detection
...ational Laboratory is helping to determine if bees pass muster as secret agentsin the mission to find millions of landmines scattered worldwide. Pacific Northwest engineers have modified commercially availableradio-frequency tags, which store information and can be used to track itemssuch as cloth...K-State Researchers Study Pest Resistance Management
...e insects must survive toadulthood before they can pass their genes to the next generation. Even if someof these insects are able to cause more damage to plants than similarnon-resistant insects, the resistance will not be passed on to futuregenerations if they are killed before they mature and mate. They...Slimy Bacteria Common Cause Of Chronic Infections
...row so slowly - or are so starved - thatthey don't pass along the antibiotics. Another idea is that some of the cellsset up barriers to block penetration. The future of biofilm research will see the continued dissection ofbiofilms on a molecular and genetic level, the article says. "Our m...Researchers Propose A Revolutionary New Theory About The Way Cells Communicate
...o fight afire, a little bit spilling out with each pass off until the bulk of themorphogen reaches its destination.) Regardless of the particular mode of transport, however, the theory has beenthat morphogens arrive at their destination at a particular gradient, orconcentration, and that, in the concentr...