New Sensor Adds Precision To Search For Dangerous Gases
... use or in the home and another unit that can be controlled by a computer and is suitable for monitoring various locations in office buildings, industrial sites and mines. The handheld version, now in the prototype stage, can also be connected to a computer or operated i...Scientists Sift Through Trash In Search Of Perfect Landfill
...rial already buried. Ham says this study gave them controlled information atlandfills in Florida, Pennsylvania and Madison on 11 representative types oftrash. "By tracking what happens to the very items we put down, we know exactly whatthe weight and composition was at day zero," Ham says. It showed conclusive...Jefferson Researchers First To Create Genetically Engineered Mouse To Study Photoaging
...explained Dr. Uitto. "When we exposed the mice to controlled solarsimulating irradiation in the lab we learned from the CAT reporter gene that thelight acts as a switch, resulting in up to a 30-fold increase in elastin promoter activity indicating photodamage." Drs. Uitto and Bernstein were able to det...Molecular Mechanochemistry: An Emerging Discipline At The Nexus Of Biology And Physics
...Dilation andconstriction of vessels are ultimately controlled by shifts from one signaltransduction pathway to another, involving gene expression and proteintranscription in the affected endothelial cells. Davies' lab is studying severalendothelial-cell genes sensitive to blood flow and how the molecular pathwa...Biotech Approach To Feral Cat Problem Devised
...al spay and neuter techniques require surgery in a controlled environment. Animal control experts also note that eliminating or removing the feral cats does not work well since others seem to migrate into the recently vacated niches. Working with faculty mentor Dr. Stephen Boyle in the Virginia-Maryland Regio...Lactose-Intolerant People Should Drink More Milk, Expert Says
...atment, Savaiano says. "We've found that if you do controlled clinical blind trials, where people don't know what they are consuming, and you take out that placebo effect, you can give subjects a glass of milk with breakfast and another with dinner and they exhibit almost no symptoms. "Further, we just complete...Transplanted Neurons Restore Function In Rats After Stroke
...y ofcryopreserved human neuronal cells, made under controlled conditions and storedfrozen, could be used as replacement therapy to reverse the deficits of stroke,"notes Virginia M.-Y. Lee, PhD, a professor of pathology and laboratory medicineat Penn and a coauthor on the study. Lee and Penn colleague Jo...Virulent Fungus Devastating Potato Crops
...sible for the Irish Potato Famine, which is easily controlled by metalaxyl, according to Fry. The new strain is remarkably rapid and destructive, devastating apparently healthy potato fields within days. In the article, the researchers explained a two-pronged problem: Why it is difficult to detect low level......motors drive the robotic arms and rear wheels, all controlled by a personal computer wired to the vehicle. The dimensions of the wheelchair were carefully calculated to distribute the weight of the device over the points where it touches the ground. The prototype will support a rider who weighs up to 60 p...Novel Method Of Gene Replacement Reported By University Of Washington Researchers
...esearchers' method guarantees that the new gene is controlled byappropriate genetic circuitry, ensuring that it is switched on in the rightcells, at the right time and at the right dosage. In addition to targeting exactly the right part of the cell, therepaired copy and the mutated copy of the genetic m...Dietary Determinants Of Iron Stores In A Free-Living Elderly Population: The Framingham Heart Study
...omatosis were excluded from the analysis. After we controlled for sex, age, body mass index, total energy intake, smoking, and use of aspirin and other medications known to affect blood loss, we found five significant dietary factors associated with iron stores. Heme iron, supplemental iron, dietary vitamin C, ...Tinkertoy Robot Shows How Humans Walk
...tant implications for designing better powered and controlled biped robots, building better artificial legs and improving rehabilitation for neuromuscular problems. The researchers hope to make the device more stable and sophisticated. Coleman constructed the Tinkertoy device as follows: He stuck two green r...Molecular Memory Tunes Adrenaline To Stress
...is different for every individual, and seems to be controlled by some combination of inheritance and lifestyle,"...artment. "Whether our stress responses are controlled by genes or lifestyle, we'd like to have more control," McCobb says. "We don't want to secrete more...Fruits And Vegetables Protect Lungs
...t. The researchers found that their analyses, when controlled for gender, age, body fat, race, income and cigarette smoking, provide powerful evidence "that antioxidant nutrients play a role in maintaining lung function in adults and suggest that the effects of the antioxidant component differ according to smok...... Finally, the authors showed that Ndt80 is itself controlled by aso-called "check point" protein called Rad17. Normally, check point proteinsplay the invaluable role of stalling further cell development when there areindications of damage, until repair has taken place. If a precursor cell's DNAhas somehow ac...... postsynaptic neuron. The R-type current controlled release with a lower efficacy than other types of Ca2+ currents. Neuromodulators such as the metabotropic glutamate receptor and GABAB receptor agonists inhibited the R-type current. This results suggest that modulation of ...Bison Grazing Increases Biodiversity In Grasslands
...tallgrass prairies, diversity and productivity are controlled to a large extent by nitrogen availability, Collins explains. Historically, nitrogen availability in prairies was driven by interactions between frequency of fires and grazing by large herbivores. In general, spring fires enhance growth of certain ......ich protects the termites in a microclimatethat is controlled and different from that of the surrounding environment,Henderson says. As a soil-dwelling creature, Henderson notes, the termitesconfront many adversaries such as ants, fungus, bacteria, and nematodes. Hebelieves that fumigating the nest with napht...Ulcer-Causing Bacteria Also May Be Associated With Heart Disease
...eresearchers stated that h. pylori -- which can be controlled with antibiotics --did not exacerbate the severity of heart disease. The researchers studied 88 patients who had ischemic heartdisease, which causes heart attacks and is the result of poor blood flow to theheart. The control group cons...Pediatric Academic Societies Report Progress In Children's Health
...lanet Health was tested in a two-year, randomized, controlled fieldtrial in 10 Massachusetts public schools. It was effective in girls; for boys,however, there was no difference in the prevalence of obesity in theintervention and control schools. The program reduced television watching byboth boys and girls. O...