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Shrinking Giants, Exploding Dwarves New, detailed observations of a supernova show evidence that a white dwarf star "fed"off a red giant to gain the critical mass needed for explosion. When white dwarf stars explode, they leave behind a rapidly expanding cloud of 'stardust'known as a Type Ia supernova. These exploding events, which shine billions of times brighter than our sun, are all presumed to be extremely similar, and thus have been used extensively as cosmological reference beacons to trace distance and the evolution of the Universe. Astronomers have now -- for the first time ever -- provided a unique set of observations obtained with the ESO Very Large Telescope in Chile and the 10-meter Keck telescope in Hawaii, enabling them to find traces of the material that had surrounded a white dwarf star before it exploded. New Approach To Fixing Spreadsheet Errors Could Save Billions Computer scientists at Oregon State University have created a new, much simpler approach to fixing errors in spreadsheets, a system that is easy to use and might help businesses around the world reduce mistakes and save billions of dollars. The advances -- which allow a non-specialist to identify and fix a problem by selecting from a short list of change suggestions -- were announced today at the International Conference on Software Engineering in Minneapolis, Minn. Patients Respond Well To New Minimally Invasive Treatment For Kidney T A new study confirms the success of a newer minimally invasive technique that uses heat to destroy kidney tumors. After reviewing the outcomes of 143 solid kidney masses treated with radiofrequency ablation (RFA) over a nine-year period at Rhode Island Hospital, researchers report that 137 of 143 tumors (96%) were successfully treated. Study Finds One In 523 Children And Adolescents Have Diabetes About one in every 523 children and adolescents in the United States had physician-diagnosed diabetes in 2001, according to estimates from a major national study called SEARCH for Diabetes in Youth. IPod Copy Protection Cracked A hacker already known for cracking the encryption on DVDs claims to have solved the code that prevents iPod users from downloading songs from other music sources. He says he'll be licensing his technology to Apple rivals. More Kids 'On Track' at School -- 1 in 4 Gifted -- According to Census This January 2007 press release is for "A Child's Day: 2003,"the "third examination of children's well-being and their daily activities based on the Census Bureau's Survey of Income and Program Participation (SIPP)". Topics include education, child care arrangements, and participation in sports. Features highlights of the report, and link to the full report, detailed tables, and podcasts related to the report. From the U.S. Census Bureau. Combating Holocaust Denial: Holocaust Deniers and Public Misinformatio This essay discusses Holocaust denial--the belief that the Holocaust never happened--with a focus on refuting the reasons for these beliefs. Includes links to related essays on Holocaust denial, annotated website links, and a press release about the December 2006 Holocaust conference in Iran, stating that it "will serve as nothing more than an international platform for Holocaust denial."From the Holocaust Encyclopedia, U.S. Holocaust Memorial Museum. Tool use in an invertebrate: The coconut-carrying octopus Scientists once thought of tool use as a defining feature of humans. That's until examples of tool use came in from other primates, along with birds and an array of other mammals. Now adds an octopus to the growing list of tool users. Does Natural Selection Drive The Evolution Of Cancer? The dynamics of evolution are fully in play within the environment of a tumor, just as they are in forests and meadows, oceans and streams. This is the view of researchers in an emerging cross-disciplinary field that brings the thinking of ecologists and evolutionary biologists to bear on cancer biology. Insights from their work may have profound implications for understanding why current cancer therapies often fail and how radically new therapies might be devised. Third Gene Responsible For Genetic Disorder Identified Tumoral calcinosis is an inherited disorder that is characterized by the presence of lumps of calcium at inappropriate sites in the body, such as around the hip, elbow, shoulder, and knee joints. Previously, mutations in two genes (FGF23 and GALNT3) had been shown to cause this disease. Now, researchers have identified in a third gene a mutation that causes tumoral calcinosis.
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