Scientists To Study Effects Of Global Warming On Wetlands
...ct on many ecosystem processes." Chen said previous studies have raised the possibility that globalwarming might result in a lack of physical energy for natural ecosystems andthat species richness abundance could change depending on how different species react to higher temperatures and moisture. "Thi...Imaging Studies Illuminate Brain's Response To Cocaine
...," "low" and "craving." The currentstudy supports previous animal observations of how the brain responds to cocaineand provides much greater detail regarding reactions of specific, tinystructures and how they relate to the feelings of the cocaine user. "Understanding how different circuits are activated duri...Synthetic Vitamin E And Natural Vitamin E Are Equally Powerful Antioxidents
...ion for patients on vitamin E," said Dr.Jialal. "A previous study from (the University of) Cambridge, England,... in patients with heart disease." Only one previous study in humans had directly compared natural andsynthetic vitamin E. A University of California, Sa......ry ineither younger or older women. While previous studies have shown that sex hormones are important forthe development of the brain, this study shows that sex hormones may play a rolein modulating brain function throughout life. INVESTIGATORS EXPLORE OPPOSING RELATIONSHIPS BETWEEN EPILEPSY AND SCH...Growth Factor Stimulation Leads To Increase In New Neurons In The Striatum And Cortex Of The Brain
...ains of adult rats. Notonly did they confirm their previous findings that the number of neurons wasincreased in the olfactory bulb of the brain, but also that the number ofneurons in the striatum and outer brain, or cortex, increased significantly. Contrary to a long-held belief that neurons cannot re...New Materials Remove Corrosive Gas In Coal-Gasification Process
... for hot-gas cleanup has had significantpotential, previous research has focused mainly on metal-based sorbentssuch as zinc ferrite, zinc titanate and various copper oxides," Calsaid. "But each of these sorbents suffers from at least one major deficiencythat prevents its widespread use." Carbon offers severa...NSF Grant For Sphingolipid Research
...d. This project continues studies started under a previous NSF grant awarded to Lynch for1990-93. Ultimately, these studies could lead to advances in crop plant manipulation so that plants may bettertolerate environmental stresses or be more resistant to pathogenic organisms. Three Williams students, Pamela ...Biodiversity Worth $2.9 Trillion
...rrive at what he terms a conservative estimate. A previous study had valued the world's ecosystem services and natural capital at $33 trillion a year. The Cornell study counted natural services of a diverse biota, such as organic waste disposal, soil formation, biological nitrogen fixation, genetic resources...Green Tea Ingredient Can Kill Cancer Cells
...ound in green tea. This compound has been shown in previous studies from CWRU and elsewhere to prevent cancer in laboratory animals. "We found that this particular compound, which is present in the amount of about 200 mg in one cup of green tea, can kill a variety of cancer cells through apoptosis without af...Genes May Affect The Response To Drugs That Treat Mental Illness
... action of antipsychotics is still not clear. In a previous study itwas hypothesized that genetic variation in neurotransmitter receptors couldinfluence response to antipsychotics targeting them. In this way, alterations ingenes coding for receptor proteins may affect their function, expression orbinding affi...3-D Structure Of HIV Components May Pave The Way For New Anti-AIDS Drugs
...ical companies took an immediate interest in these previous results,said Dr. Summers. "Nucleocapsid has already been targeted by antiviral agentsthat eject zinc from the protein, some of which are undergoing clinical tests inthe U.S. and U.K.," he said. Even more effective drugs may be designed specificall...STS-89 Will Carry Five Science Payloads From NASA/Marshall
...ignificantly larger and of higher quality than any previous specimens.This will help in defining the structure of the protein which is importantin fighting the AIDS virus. Another team, which includes Carter, has been able to define the structureof the recombinant antibody that fights respiratory synctial vi...Experimental Trial Combines DNA Vaccine With Triple-Drug Therapy To Stop HIV
...lity to spark a range ofimmune system responses in previous animal and human trials. In a trialconducted last year with HIV-positive patients, for example, a vaccinecontaining only the env and rev genetic constructs triggered a statisticallysignificant rise in antibodies, but did not appear to alter the cours...Common Cold Caused By Multiple Viruses
...otic-resistant bacteria. Despite this research and previous studies showing that antibiotics are of little use in treating thecommon cold, it is estimated that up to 60% of patients with common colds receive some type ofantibiotic. This results in an estimated cost of $37.5 million per year in the United Stat...Technique Gives Researchers New Look At Genetic Activity In Living Cells
...r, found normally in bacteria,is well-described by previous work. By detecting the lac-repressor protein,the location of the DNA fragment containing the lac-operator repeats isrevealed. The fragment is put into chromosomes by genetic engineering. To sharpenvisibility, the lac repressor protein is fused wi...Urban Residents Rebut Argument That Tree Removal Enhances Safety
...olice and housing administrators, andthey reviewed previous literature on law enforcement concerns that treesheighten fears of attack and on administrators' worries about the cost ofinstalling and maintaining landscaping around public-housing units. When residents were shown computer simulations of their cou...Trees, Grass Foster Children's Play And Encourage Adults To Supervise
...y Forestry AdvisoryCouncil -- carefully documented previous research that links the importanceof play on social and cognitive development of children and the accessibilitythe children have to responsible adults. "This study argues that the way we design our cities has a verycritical impact on the people who ...Research Finds Alligator Problems Also Evident In Less Polluted Lakes
... could be responsible for sexual deformities and a previous population decline of alligators in Lake Apopka near Orlando. That lake suffered from a severe pesticide spill in 1980 and commercial development on its shores. "Everyone accepted the fact that Lake Apopka had a problem," Guillette said. "We now h...Low B Vitamin Levels Common In Many People Linked To Increased Heart Disease, Stroke Risk
...eart attack or stroke.The current study expands on previous research and shows that both vitamin B-6 and folic acid deficiency may be more commonplace in the population with heart disease and strokes than had previously been suspected. The American Heart Association issued an advisory in September 1997 notin...Sexually Active Younger Women Are At Higher Risk For Infection With Human Papillomavirus
...st infection. The longer aninfection endured from previous visits, the more likely it was to persist. One of the consequences of HPV infection is the presence of various types ofabnormal cells. One such type, squamous intraepithelial lesion, a potentiallypre-cancerous condition, is causedby HPV infection o...