How Dry Is The Tropical Free Troposphere? Implications For Global Warming Theory
...en 0.3 and 0.6 degrees C. But many - especiallythe early - computer-based global climate models (GCM's) predict that therate should be even higher if it is due to the man-made "GreenhouseEffect". Furthermore, these computer models also predict that the Earth'slower atmosphere should behave in lock-step w...Jefferson Scientists Discover Mechanism Of Viral Link To Disease Commonly Associated With Asbestos
...cer diagnostics, even a "potential test for the early development of cancer. There are implications t...velopment of tests to determine mesothelioma in early stages, and treatments that will allow the genes to restore normal function." The SV40 fi...Resistance To Leptin Contributes To Obesity
...ilyinjections of the protein for two weeks. These early studies required highdose injections of leptin. In the current study, much lower doses wereeffective in reducing weight when the hormone was delivered as a constantinfusion. While receiving leptin, the mice ate less and had a relativeincrease in th...Coming Extinction Of One Of UK's Most Minuscule Plants Yields Information On Climate Change
...ed by climate change. What is certain is that the early part of the year has been much drier on the west coast of Scotland in recent years and this spring (1997) many of the burns had dried up by the end of June giving many remote houses cause for concern. By studying the plant the researchers will be ab...Huntington's Disease Findings Pave Way For Potential Cure
...terious signals that start theprocess? "In early development, when everything is normal, the protein isswimming in the cytoplasm like Odysseus sailing in his boat," she explains. "Hehears the siren song of Circe and ends up marooned in the nucleus instead ofgoing home." Dr. Wexler is "ecs...Evolution Re-Sculpted Animal Limbs By Genetic Switches Once Thought Too Drastic For Survival
...ying genes thatspecify gross changes in body shape early in development. But others have arguedthat any nat...he finding legitimizes the comparative genetics of early developmentas a tool for studying evolution. "This variation is what everyone had hoped to find for ...New Gene May Intensify Breast Cancer Growth
...mediate impact on breast cancer therapies."At this early stage, we're really thinking more in terms of the fundamentalcell biology of breast cancer. We think this gene is probably part of the enginethat drives the growth of some breast cancers, and we're trying to understandhow that works," said Dr. Jeffre...Female Adolescents Need Calcium During 'Window Of Opportunity'
...at's important, because the more bone you build up early in life, the more you can use up later in life," Weaver says. Purdue nutritional educator Lisa Jackman, the primary investigator on this research study, says, "The new numbers for adolescents are based on our research, which is also just being releas...Early Menarche Puts Young Girls In Peril
...ed to be on National Public Radio's "Fresh Air" in early September. Heavily illustrated with photographs to depict changing views of American womanhood over the decades, The Body Project traces the shifts in how girls think and feel about their bodies now that they menstruate and lose their virgi...MGH-Led Team Finds Gene For Crippling Neurologic Disorder
...am have been searching for the DYT1 gene since the early 1980s, when many of them worked together at Yale University. In 1989, they discovered the first marker for the gene, which localized it to a segment of chromosome 9. While the MGH researchers worked out the genetic and molecular aspects of this dis...Pea Plant Stem Growth Gene Cloned
... discovered in the 1950s, but it was not until the early 1980s that the group connected it to stem height. Now, the researchers have demonstrated that in the tall pea plants used by Mendel, the tallness gene codes for an enzyme that adds a hydroxyl (HO) group at a very particular location onto GA20, which ...Trojan Horse Virus Controls Hiv Infection
...hat target macrophages and typicallypredominate in early HIV infection. The virus involved, VSV, causes vesicular stomatitis, a disease mainly ofcattle, horses and pigs that causes blister-like bumps on the hoofs and tongue. Nearly all animals recovercompletely from the illness. Occasionally, people become...Basin Traps Air Pollution In Mexico City: International Study Has Implications For U.S. Cities
...se that burnedeyes and lungs in Los Angeles in the early 1970s, according to preliminaryresults of a field study conducted earlier this year. Peroxyacetal nitrate alsois implicated in the production of ozone, another irritant that makes breathingdifficult. An international team of scientists condu...Lethal Parasite Prime Suspect In Fish Kills At Salton Sea
...mortalities". In late summer and early autumn of 1996, a large mortality event in birds was found to be caused by avian botulism. This outbreak resulted in the death of more than 14,000 fish-eating birds including 1,400 endangered California brown pelicans and 10-12% ...Low Oxygen, Key To Fetal Development, Also Offers Cancer Clues
...at low oxygen levelsregulate cell proliferation in early pregnancy, controlling thedevelopment of the vital bridge between mother and baby. The finding also sheds light on cancer, says co-author JohnLudlow, associate professor at the University of Rochester CancerCenter, since hypoxia, or low oxygen l...Hunt For Early Heart Attack Genes Begins
...ards developing better methods for the prevention, early diagnosis andtreatment for this disease that is si...ories of 2,000 people who have heart attacks at an early age. Because heartdisease is likely to have various genetic causes, enrolling such a large studypop...Researchers Find Association Between Alzheimer's Gene And Mental Impairment After Cardiac Surgery
...tion and memory problems -- werevery much like the early symptoms of Alzheimer's disease," said Duke'sDr. Mark Newman, chief of cardiothoracic anesthesiology and the study leader."After controlling for other characteristics, we found a statisticallysignificant correlation between patients with the APOE var...New Mechanism To Explain Carbon Monoxide Poisoning Identified
... exposure to CO. Thom argued that if damage occurs early on, it could alsobe happening with lower concentrations of CO over longer periods of time. "A lower dose of carbon monoxide showed a lower magnitude of cell death,but the important thing is that we still saw cell death," says Thom. He measur...In the early years of research on HIV-1, six of the nine genes ...ree virus, suggesting that itmay be crucial in the early stages of infection by the virus. Now, researchers at the University of Pennsylvania Medical......sis. "So potassium lossappears to play a critical early role, telling neurons to commit suicide," Yusays. The group now is looking to see whether TEA or other potassium channelblockers can reduce brain damage in rats that have suffered a stroke. Meanwhile, Yu and colleagues have found that...