Important New Fossil Animal Discovered By Wits Scientists
...idea that thedistant ancestors of mammals acutally came from South Africa."...Harbor Branch Scientists Discover Bioluminescent Octopus
...lue that there was somethingodd about this octopus came when they brought one into the shipboard laboratoryaboard the R/V EDWIN LINK during a research cruise in the Gulf of Maine. A livespecimen, captured thanks to the skill of Harbor Branch JOHNSON-SEA-LINKsubmersible pilot Scott Olson, was placed in an...Heat-Shock Vaccine Stops Bacteria Dead
...einshave had a major drawback: in most cases, they came from diphtheria and tetanusbacteria and, as a result, they tended to triggerthe production of antibodies against themselves, a process which interferes withthe creation of the antibodies needed to prevent the disease. This is where the Weizmann Insti...Waste Makes Saleable Coal Product
...bon. "Before low NOx emission requirements came into being, power plantsmarketed the fly ash remaining after burning to the cement industry. However,with the higher levels of unburned carbon, this waste by-product can no longersimply be sold," Maroto-Valer told attendees today (Mar. 23) at the ann......" said Dr. Arditi. "The firstreal evidence of this came in 1997 from Charles Janeway at Yale University, whoidentified the first human homologue of the Toll receptors, now called humanToll-like receptor-4 (TLR4). Janeway has also shown that human Toll receptoractivates NF-kappa B. Since then, five human T...Researchers: 'Exciting' Discovery Might Improve Cancer Treatment
...iate applications. Support for the studies came from the National Cancer Institute, theAmerican Cancer Society, the UNC Lineberger Comprehensive Cancer Center and theLeukemia Society of America....Autoimmune Diseases May Be Triggered By Cells From Your Mother
...X chromosomes, andusing PCR they confirmed that it came from the boy's mother. Nelson admits that she is still some way from proving that maternalcells can trigger autoimmunity. "But I think they're likely to be a significantpiece of the puzzle," she says. Antony Rosen, an expert on autoimmunity a...Discovery Of 13 Genes Expressed In Brain Tumors May Lead To More Effective Diagnosis Or Prevention
...earch and in neurosurgical journals. Dr. Ljubimova came to Cedars-Sinai in 1993 after performing cancer and othermedical research in Kiev, Ukraine, at the Baylor College of Medicine in Houstonand at the University of California, San Diego. She received her medical degreefrom Kiev State University in Uk......April 1999 issue of Science . Researchers came across the fossils outside the small village of Bouri,a hard two-day drive northeast of Addis Ababa. The site is located in a harsh,desert region of Ethiopia called the Middle Awash, already famous for othermajor discoveries such as the oldest known ...The Liver's Secret Of Regeneration
...st clues to the identity of these liver stem cells came in the1950s, from studies of tumours that grow from another type of cell found in theliver, called oval cells. These cancers contain some cells that look like maturehepatocytes and others that resemble the cells that line the bile duct, whichdeposits...Discovery: Chromosomes Found To End In Big Loops
...hat showthe loops clearly. "The first clue came from studies by Dr. de Lange's group of one of theproteins they had discovered," said Griffith, whose laboratory employs electronmicroscopes to investigate the architecture of DNA molecules. "When thisparticular protein was functionally removed from ...Bone Marrow Gives Rise To Functioning Liver Cells, University Of Pittsburgh Scientists Discover
...f repair with L21-6-positivecells, suggesting they came from a source outside the liver. Collaborators on the study include Bill Bowen; Ken Patrene; Wendy Mars,Ph.D.; Art Sullivan, M.D.; Noriko Murase, M.D.; Sally Boggs, Ph.D.; JoelGreenberger, M.D.; and Judy Goff, Ph.D. All collaborators are wit...Stress Increases Blood Chemical Related To Heart Disease
...e post-menopausal. For the study, the participants came to Ohio State's General Clinical ResearchCenter in the morning after an overnight fast. Researchers inserted a catheterinto their arms to collect blood during the experiment. During the experiment, the women were given two stress-inducing tests. In...Unprecedented View Of RNA Structure Captured
...nalyzing the data. In early April, the final image came intofocus, and Draper prepared the announcement. "People have been thinking that a lot of the important work in a cell depends onthese kinds of tertiary folds in RNA," Draper said. "But until now only a fewlittle bits of structure were known. What we...The Sagan criteria for life revisited
...c matter to reveal oil shales and source rock that came from the decay of green plants. Does the presence of porphyrins mean that there is or has been life on the Moon? Not at all. The 1969 discovery of lunar porphyrins probably says less about the chances for biochemistry there, than about how comm...Researchers Propose A Revolutionary New Theory About The Way Cells Communicate
...don't go anywhere," said Kornberg. The researchers came to their conclusion by examining the mode of transmissionof Dpp protein and Hedgehog protein in a region of the Drosophila wing that issubdivided into two equal regions, the anterior (A) and posterior (P)compartments, which bisect the wing region. T...Antbird capable of increasing testosterone level when threatened
...Wingfield of the University of Washington. Funding came from the NationalScience Foundation, Alexander Von Humboldt Society, Smithsonian TropicalResearch Institute, Deutsche Forschungsgemeinschaft, DeutscheOrnitholgen-Gesellschaft and the Max Planck Gesellschaft....