"Remote control research" a first for the U of L and National Research Council
Two Canadian biophysicists have broken new ground in the innovative use of internet technology for scientific research. University of Lethbridge Physics professor David Siminovitch and National Research Council (NRC) researcher Dr. Harold Jarrell have, for the first time, successfully tes...Moderate caffeine use does not increase miscarriage risk but high caffeine use doubles risk
...araxanthine, a substance produced when caffeine is broken down bythe liver. Caffeine reaches high levels in the blood shortly after consumption, but then plummets a short time later. Becauseparaxanthine remains in the blood longer--and at more consistent levels--than does caffeine, the investigators belie......ound state, the pollutant is also less likelyto be broken down by microrganisms. The researchers de... see whether strongly bound pollutants canstill be broken down in the soil or whether they are inaccessible tomicroorganisms," he adds. The research w...USGS studies wildfire ecology in the western United States
...p is based on satellite images of vegetative cover broken down into 30 by 30 meter squares, each representing one of 30 unique fuel categories. Additional data are provided by geographic information system (GIS) maps, aerial photographs and field measurements from more than 1,000 sites. All of this informat...Clemson's Baruch Forest Science Institute tracks forests' recovery from hurricane damage
...bitat for wildlife. The trees that had their tops broken off by Hugo havere-formed crowns so the canopy has returned. We've also seen a ten-foldincrease in the number of new trees filling in open spaces." Called "advance regeneration," these new trees are coming from seedsdropped into open spaces ...Molecular inner workings of fruit fly clock explained
...h PER lingers for a short whilebefore also getting broken down, and the cycle starts anew. But, says Sehgal,"The question remained: How exactly was TIM broken down?" Using several assays on fly brain tissue, the team found that the proteosome,a cellular st...Fragment of AIDS virus may be used to deliver therapeutic proteins to cells
...ing a stain calledX-Gal that turns blue when it is broken down by beta-galactosidase. "We held up the tissue samples from the mice and said 'Wow,'" says Dowdy."All of the tissues were blue, indicating that the enzyme was working inside thecells." Dowdy's group was also surprised by the rapidity of the tr...Factor for acquiring skin barrier function identified
...the fat layer, which forms the sealed barrier, was broken in micelacking Klf4. "Because the cornified enve...to. Its like a trying to build a flat highway ona broken surface--it just doesn't work," explains Segre. The research was funded by the Damen Runyon-Walter W...Astrobiologist to hunt small game in Siberia
...ce of the Matanuska Glacier in Alaska. Rock debris broken from mountains androck surfaces by the moving ice ...NASA/Marshall acquired fordetailed analysis of the broken edges of failed materials. As part of hisastrobiology investigation, Hoover uses it for the designer...Conference on the chemistry of light will draw international audience to Duke
...other substancescan drastically change as they are broken into increasingly small pieces,possibly introducing new traits useful to computers, communications or medicine.He will also describe using very short pulses of laser light to learn more abouttheir properties. Other major speakers will include...Target for cystic fibrosis drugs found
...blem," saysPedersen. "And now that we know what is broken at the most basic, chemicallevel, we can lab test non-toxic drugs -- there are millions of them thathave already been studied -- to see if they fold the protein. It's thefirst time this kind of approach has been available." Francis Collins, director ...Study Reveals Cancer Role Of Mutated Gene
...m, where the proteins would otherwise be degraded, broken down. "When these proteins all come together, p53 cannot go from the nucleus to thecytoplasm. So ARF blocks p53 nuclear export," Xiong says. The researchers also focused on what happens when ARF becomes mutated. Theydemonstrated for the first time ho...Discovery: Chromosomes Found To End In Big Loops
...chinery doesn't mistake the ends ofchromosomes for broken DNA and either "fix" or destroy them. Wor...ak DNA molecules, the repair mechanisms stitch the broken ends back together.If too many breaks occur, then a cellular suicide response kicks in, and cellsdie...Researchers Track Path Of Safer Gene Delivery Method
...o the cell. Once inside the cell, rather thanbeing broken down and used by the cell's machinery, the complexes move into thenucleus, where the desired gene is turned on. The researchers labeled both the DNA and the PEI separately in differentcolors, to verify that the complex gets into the nucleus i...Seabed Silt In Indian Ocean Consists Of Remains Of Summer Plankton
... near the surface of the sea where it is formed or broken down during settling The researchers were surprise... despite the fact that a great deal of material is broken down at sea-bed level, the silt consists almost entirely of the remains of this living material. How...Mixing Radiation, Minerals, Toxic Waste Could Be Cleanup Boon -- Or Kaboom
...perhaps methane, aregenerated as the chemicals are broken down by minerals in the tanks. "They're big cauldrons of radioactive soup," says Kimberly A. Gray, associateprofessor of civil engineering at Northwestern's Robert R. McCormick School ofEngineering and Applied Science. Gray conducted the new study wi...Researchers Discover Genetic Mutation For Rare Form Of Dwarfism
...ry for diagnostic tests andtreatment to bypass the broken signaling pathways and restore growth hormone,"says Levine, professor of pediatrics, medicine and pathology at Hopkins. Twenty-two of the affected members studied underwent extensive endocrineevaluation. All had markedly reduced or undetect...Household Fungus Contributes To "Sick Building Syndrome"
...which have sustainedflooding, or water damage from broken pipes, roof leaks, sewage backups,condensation, etcetera," says Nelson. Spores of the fungus are in soil and areintroduced along with flood waters or dust and dirt entering a building. Thefungus is most common on the paper covering of sheetrock but c...Brain Building May Depend On DNA Cutting And Pasting
... essentially snipgenes into bits and then join the broken DNA ends, forming a nearly infinitesupply of new genes. It now appears that two of these "paste" proteins are alsorequired during a very specific period in brain development-when progenitorcells are developing into different kinds of neurons. The dis...... Composted green waste, shredded pine bark and broken pecan shells were found to be just as effective at suppressing weeds in nursery container soil as pre-emergent herbicides in a recent two-year study by Cheryl Wilen, UC Integrated Pest Management Project area advisor for the South Coast regi...