Purdue Finding May Snuff Out The Sniffles
...ly has adapted itself to be able to attach to this particular molecule in humans, so that they fit exactly, similar to a lock and key." As the virus attaches to one or more receptor sites on a cell, the cell membrane engulfs the virus, wrapping around it and allowing it to come in contact with more receptor sit...Human Bone Disorder Reproduced In Mice
...ineglands. The crippling bone disturbances were of particular interest to Drs. Bianco andGehron Robey. MAS patients have regions of bone in which normal marrow has beenreplaced by functionless fibrous tissue that is interspersed with fragments ofweak, poorly formed bone. These areas of bone can be extremely p...From The Home Front To The River Front, USGS Updates Water-Quality Information
...centrations of nitrate, a form of nitrogen, are of particular concern where large amounts of manure or other fertilizers are applied to areas that are underlain by limestone. Limestone areas comprise about 18 percent of the land area in the Lower Susquehanna and Potomac Basins. Forty percent (48 of 119) of wat...Fortified Drink Improves Third World Nutrition
...ll. "Whereas other researchers stress megadoses of particular nutrients to relieve this deficiency or that deficiency, this approach can address several deficiences," noted Latham. "It is also a simple approach that with a locally manufactured product widely distributed could be administered easily by mothers ...Florida Or Bust? Older Lab Rats Seek Heat To Fight Infection, UD Researchers Report
...lder rats may, for instance, have higher levels of particular stresshormones such as corticosterone, which inhibits fever. Or, they might have lowerlevels of interleukins, the immune-response factors that promote fever. Aninfection triggers the production of these and other chemicals in the brain,Satinoff notes......ts ofenvironmental data into a coherent picture of particular environmental systems. Several of the contributions deal specifically with the problems involved inco-ordinating data collection over large geographical areas and over manydimensions of measurement relevant to environmental issues. Finally, a number..."A Thousand (And More) Points Of Light" Yield New View Into Cells
...RNA are transcribed from aparticular gene during a particular unit of time. (Messenger RNA is themolecularintermediary from which information encoded in genes is translated intoproteins.) The Einstein researchers have already quantitated the kinetics of mRNAtranscription from the beta-actin gene, and have fou......ince 1992, scientists have known thatpeople with a particular form of the protein apoE are at increased risk fordeveloping Alzheimer's disease. They have been frustrated, however, becausethere has been no way to find out how the biological effects of this variant,called apoE4, differ from those of apoE3, the mo...Invasive Weeds Pose Major Threat To American Landscape
...nd on National Forest lands. "We need to be paying particular attentionto the east where non-native invasive plants such as kudzu, Japanese honeysuckleand mile-a-minute weed are completely draping forested areas and affectingforest ecosystem health," Dombeck said. The report's authors blame the increase an...Mowing, Grazing Of Tall-Grass Prairie Increases
...ity or the number of plant species that exist at a particular site ofgrasses on the prairie. Grazing and mowing keep plant diversity high even in annually burnedor fertilized prairie where some plant species would otherwise be lost. Their research waspublished today in the journal Science. Alan Knapp, John Blai...The First Rejection: Eggs Sequester Bits Of Sperm For Later Elimination
...ved to remain untouched by the egg's enzymes. This particular segment could be seen in the guts of recently hatched larvae, where it appeared as a tight coil in photographs where the sperm had been stained with a fluorescent dye. But when Karr and Pitnick looked for these pieces after the larvae were allowe...Jellyfish Help To Make Sugar Smarter
...dentify the best way to transfer a new gene into a particular plant, determine which are the best switches to turn it on, and whether it is working as it should," explains Dr Adrian Elliott, a member of a small team led by Dr. Christopher Grof that aims to understand sucrose metabolism. The jellyfish gene...Birds Sing The 'Story Of Their Lives,' Theorize Duke Biologists
...specific regions of thebrain that develop during a particular period when the young bird is most likelyto undergo stress." Such stress, Nowicki said, might consist of the nutritionalstress a nestling faces during the rapid growth period songbirds typically faceearly in life, or perhaps stress resulting from the......and fission yeasts, make contact to a particular part of a subunit of the RNA polymerase II complex. The activity of this part of the subunit plays a role in the regulation of the interaction of the RNA polymerase with proteins that regulate transcription. I...New Fossil Discoveries Clinch Ancient Age Of Human Ancestor
... 40 Argon/39 Argon method, needs crystals and this particular layer is mostly powdery ash," Walker explains. "Since then--after much sifting through the ashes--we have managed to get enough good crystals to determine quite firmly that these fossils are between 4.1 and 4.2 million years old," he says. "We ...Measures To Prevent Accidental Child Poisoning
... to two letters citing Tixylix cough mixture as a particular problem, the manufacturer, Novartis Consumer Health, states that this product is soon to be packaged in a child resistant container, but also offers advice about how accidental poisoning can be avoided. They state that it is important for parents to...Protein Implicated In Multiple Sclerosis
...ts of the PLPmolecule. If the T cells recognized a particular peptide, they proliferated. Inthis way, the researchers were able to identify three peptides that werefamiliar to most of the T cells. They then looked for T cells that recognized these peptides in bloodsamples from the 12 patients and from 1...Study Highlights the Use of Viruses as Tools for Material Science and Drug Delivery
...k that options for drugdelivery are limited to any particular class of medicines. The simple protein coats that Douglas and Young work with can also be"easily and routinely modified by design." This means that the loadedvirus can be altered to target certain types of cells (like cancer cells) andholds ...Scientists Unearth Remains Of A Predatory Dinosaur In Madagascar
...s. "Until now, people assumed continents splitin a particular pattern, which included South America and Africa breaking awayas one unit. "If that is the case, we would expect the animals in South America andAfrica to be more closely related. But this animal found in Madagascar -- anisland off the south......ars that in many drugsit is only the compound of a particular "handedness" that iseffective, while its "mirror image" is useless or even harmful.Therefore, developing an efficient way to identify and sort out left-and right-handed molecules with the help of antibodies could pave theway for more effective pharma...