Brain Protein "Rescues" Neurons From Atrophy
... such as certain forms of epilepsy, pathologically high levels of activity could lead to undersirable excess growth of the wrong kinds of comnnections, said Katz. Added Lo: "Loss of some kind of neurotrophic interaction could also be the basis of neurodegenerative diseases such as Alzheimer's disease, Par......animal that, in essence,mimics a person constantly high on illicit drugs. Marc Caron, a Hughes investigat...r from outside the cell, so thedopamine remains at high concentrations in the synapse and continues tostimulate adjacent neurons, producing cocaine's charac...... Such limestone forms where groundwater contains a high concentration of dissolved calcium and carbonate ions. When this water emerges from the ground, part of the dissolved carbonate "degasses" as carbon dioxide. At the same time, calcium carbonate precipitates, forming the spectacular deposits seen in l...Rosemary May Have Anti-Cancer Properties
...ver, the type of fat consumed was important: Diets high in saturatedfats seemed to block the protection that rosemary offered, while diets highin unsaturated fats were more beneficial. Milner has already published a number of studies demonstrating the anti-cancerproperties of another flavoring agent: ga...Heat-loving Microbe Repairs Its DNA With Light
...perthermophiles." Theseorganisms require extremely high temperatures to grow andreproduce, and they have been recovered by microbiologists overthe past 25 years from various hot springs, undersea vents, andother geothermal environments. When its genetic material (DNA) is artificially damaged byultraviole...Race Plus Roaches: A Breathtaking Link
...ted by roach infestation than those from middle or high income families. The study in the June issue of The Journal of Allergy and Clinical Immunology is also the first to report that children in the most infested homes are the most sensitive to the allergens, a clear indication of dose responsiveness, t...NADC Examines TB In Cattle and Swine
...ulosiswere visible as early as two weeks following high doses of the inoculationsand in 30 days following low dosages....Humble Pocket Gophers Shed Light On The Genetic Fortitude Of Cheetahs
... cheetahs, the scientists theorized, could include high rates of juvenile mortality, problems with captive breeding, and greater risk of decimation by a virus or other disease. Some field ecologists doubt parts of O'Brien's analysis. They point to apparent weaknesses in the design of the skin-graft experi......-ordinate a Europe wide research project to design high technology sensors to help monitor both the level of air pollution generated by vehicles and to restrict the amount of external air pollution (particularly CO entering drivers cabins in our increasingly polluted cities). The increasing levels of ...Cooking And Salad Oils Could Lubricate Cars, Boats, Machines
... to resist burning and forming deposits at high temperatures. They also performed as well or better than the standards in tests for slipperiness and for evaporation loss. While the tests examined important but relatively narrow characteristics, Duda notes that one of the g...Genetic Alterations Linked To Cancer In Some Blood Samples
...r presence of alterations may be indicative of the high propensity of this cancer to spread. In addition to Sidransky, other participants in the Hopkins study include Drs. Homaira Nawroz and Wayne Koch from the Department of Otolaryngology--Head and Neck Surgery, Division of Head and Neck Cancer Research ...Low-Protein Diet May Reverse Kidney Disease
...to the urine, severe fluid retention and extremely high blood cholesterol. The syndrome may result from diabetes mellitus, severe high blood pressure or other causes and often leads to the need for dialysis or transplantation. Previous......and identify many of its components with unusually high confidence, something that is almost impossible wi... The solution containing the sample is sprayed at high voltage, forming charged droplets. These droplets evaporate, leaving the sample's ionized molecules...Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...seeds must land upon temporary clearingscreated by high winds and subsequent fires. They must then compete for survivalwith other plant species also taking root there. "They apparently co-evolved with disturbance, which is very commonin forests," Snook said in an interview. "The longleaf pine inthe South...End Of World Population Growth Projected For 21st Century
...on, due to below-replacement fertility, relatively high mortality(especially for males), and near-term, ne...xt50 years due to current young age structures and high fertility levels. NorthAfrica's 1995 population level of 162 million is likely to increase to 228mi...Gene Discovery Could Overcome Aluminum Barrier To Higher Wheat Yields Worldwide
...DA scientists developed a soybean strain with both high yields and high protein levels. This is a first in soybean breeding and will overcome the problem of decreasing pro...Duke's Russian Laser Making Ultraviolet Light And Gamma Rays
...of atoms by bombarding those with various kinds of high speed subatomicparticles. If the OK-4's gamma ray...hysics, Welleradded. Boosting gamma energies that high would require a major upgrade of the FELLaboratory's electron ring system. TUNL officials have alrea...No Such Luck: Nitrogen From Air Pollution Unlikely to Moderate Global Warming
...of nitrogen deposition encouraged plant growth and high carbon storage in fields dominated by native "warm...d no net storage of carbon. Further, at medium and high rates of nitrogen addition, the native prairie species went extinct, the diversity of vegetation dro...Optical Microscopy Shines Light On Biology
...obe is used to view and study samples at extremely high magnification. Dunn, along with Chad Talley, Lawre...t the large damping caused by the water." With the high sensitivity of near-field scanning optical microscopy and the newly developed cantilevered probe, re...Environmental Impact Statements Need To Be Made Easier To Decipher
...chers traveled to Joliet,Ill., to see how well 113 high school students understood the Hickory Creekflood-improvement project of the Illinois Department of Transportation.They gave students the project description to read, then tested students'recall of basic facts, understanding of the main points of the...