Simple rules predict the outcome of predator-prey struggles
...he study began. "More complicated systems can be broken down to examine and model individually," added Kyle W. Shertzer, a graduate student of biomathematics at North Carolina State. The chemostat model, although verified in vitro , will get one of its first real-world tests when Cornell ecologists beg...Midwest geologists propose new view of ancient continental collisions
...wn about the eastern United States. "It's a very broken up continent," said Huff. "The Appalachians stop abruptly near Birmingham, Alabama. Part of the Appalachians are probably part of Africa today. The east coast has a history of this kind of fracturing."...Ice-breakers drive whales away
...hat protects the hull by pushing away fragments of broken ice. The continuous bubbling noise has a sound pressure level of around 192 decibels. Meanwhile, the ice-breaker's screw produces cavitation noise levels of 197 dB, rising to 205 dB when the ship is running at full power to ram the ice. Erbe and her...Changes in diet related to prevalence of asthma and allergies
...ildren with symptoms. When dietary components were broken down further, and the data analyzed more extensively, those children who had the lowest intakes of vegetables and milk, vitamin E, and certain minerals were at significantly greater risk of wheeze, even after adjusting for other factors. Children, wh......ut if levels of the enzyme are too high, drugs are broken down too fast to be effective. Produc...e higher their concentrations, the faster they are broken down--a negative feedback loop that regulates their levels. But Chatterjee's group foun...DNA details suggest how human chromosomes break, rearrange and cause a genetic disease
...ated specific DNA sequences at the junctions where broken pieces of chromosomes 11 and 22 attach to each other in a rearrangement called a translocation. The researchers found unusually frequent sequences of adenine and thymine, two of the four chemical letters in the genetic alphabet that spells out the bo...Feathers on reptile older than dinosaurs, reported in Science
...wall is visible. Nearer to the center, the wall is broken off, exposing the pinnae inside. Further toward the tip, the pinnae seem to have flaked off, and the wall of the opposite side of the structure appears. For Martin, this evidence clinched it. "I'd been holding back until that point, thinking that th...Novel test pinpoints location of rare insulin disorder to guide surgical cure in newborns
...c discoveries have shown that congenital HI can be broken down into six types, with the distinctions having important implications for a child's outcome and treatments, such as whether the disease is likely to respond to medicine or surgery. In 1998, Dr. Stanley identified the gene defect in a form of HI a...One-two punch knocks out fly genes
...ersion of the "yellow" body color gene--containing broken ends--this normal gene would recombine and replace...de of clipping events that culminated in a pair of broken ends of the normal body color gene DNA. The flies' cellular machinery swiftly reacted, directing th...Genetic method has promise for assessing environmental cleanup
...orage tanks. They are absorbed by the bacteria and broken down by enzymes into less toxic compounds, such as methyl catechol, which are further degraded into harmless chemicals by catechol 2,3-dioxygenase. While this is not the only enzyme used by microorganisms to neutralize petroleum-based toxins, it is o...UCSF researchers find evidence of faulty DNA repair in some infertile men
...riers that normally exist during conception may be broken down. If a couple has a genetic problem, it may be transmitted to children in a way that might not occur normally." Turek said. "At this time, it is not at all clear whether a problem like this, that exists in the sex cells of an infertile man, will ...RX for Hawaii's dry forests: no cows and lots of hard work
...s in the North Kona region. However, the forest is broken into small fragments and most of these have been grazed for more than 150 years by cattle and feral goats. To see how grazing affects the dry forests, Cabin and his colleagues compared regeneration of canopy trees in the Kaupulehu Dry Forest Preserv...Adding acetone to compost remediates chunk TNT contaminated soil
...xplosive substance. Unfortunately, chunk TNT isn't broken down as easily by the microbes and therefore remains in the soil at the end of the composting period. Workers need to treat the chunks of TNT to make the explosive more accessible to the microbes. In their research, the microbiologists took advantage...$11-million grant supports study of how genes affect cancer chemotherapy
...medications are absorbed, distributed in the body, broken down and eliminated -- and to use that knowledge to determine the best possible dose for each patient." The PAAR Group will initially concentrate on a group of anticancer drugs known as topoisomerase inhibitors , powerful but toxic substances used i......lly stable enough so that they are not quickly broken down inside the body. Zhang and his team have used magnetic CoFe2O4 spinel ferrite nanoparticles, synthesized by a microemulsion method using sodium dodecyl sulfate as a surfactant to form micelles. There are many other chemical systems t...Protein that stimulates blood vessel growth also helps repair broken bones
...PhD, a professor of anatomy at UCSF. While most broken bones will repair to their original strength withi...le treatment, Helms' team worked with 20 mice with broken limbs that were being treated with pain-relieving drugs. After splinting the legs of these mice, th...Ground-penetrating radar detects hard-to-find hazardous waste
...ction. Jagged objects such as broken rocks confuse side-by-side antennas because they scatter the radar signal. In their latest paper in Geophysical Research Letters, the geophysicists showed that crossing the antennas into a T...Life on land tied to gene expansion
... of the gene (BmprIB)--that is, how exactly it was broken up into functional units, or exons. After identifying the structure of BmprIB, Baur was able to determine that the chunk of DNA had integrated and essentially knocked out what appeared to be the promoter. The lack of any apparent defect in the brain...Heat can help maintain muscle mass in immobilized limbs, study shows
...weights, they can retard atrophy, but if a limb is broken or a person in bedridden, they obviously can't mai... application might be to average patients who have broken a bone, its most important application might be to older people, whose bone injuries often take long...... as the "aromatic gorge", where acetylcholine is broken down. Later, the team solved the structures of complexes formed between AChE and diverse synthetic and natural compounds, including the synthetically produced Aricept, fasciculin - a snake venom toxin, and huperzine A an extract from a Chinese...