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September 20, 2012
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Your World of Science News

  Top Story 
  • Scientists "print" living tissue
    Using a process similar to inkjet printing, scientists are developing ways to make cartilage, blood vessels, organs, skin grafts and other tissues. Bioprinters emit cultured stem cells in three-dimensional structures, layer by layer. Scientists have yet to print capillary networks that keep normal tissue alive, and the engineered tissues are often not as strong as natural tissue. The Wall Street Journal (9/18) LinkedInFacebookTwitterEmail this Story
  Science in the News 
  • Researchers create corn that could produce rare disease drug
    Scientists in Canada and Australia have developed transgenic corn to synthesize the enzyme alpha-L-iduronidase, which is used to treat the rare disease mucopolysaccharidosis I. The work, reported in the journal Nature Communications, may lead to less expensive methods of making an enzyme replacement drug that can cost $300,000 a year or more. Reuters (9/18) LinkedInFacebookTwitterEmail this Story
  • Study: BG-12 drug shows promise in treating patients with MS
    Dimethyl fumarate, which is offered as an oral treatment called BG-12, shows promise in lessening the likelihood that patients' multiple sclerosis symptoms will flare up, according to two studies in the New England Journal of Medicine. Ruhr-University Bochum researchers found that 16% of patients who took the treatment twice a day became more disabled over the research course. A second study, performed at the Cleveland Clinic, indicated that annual relapses in patients who took the drug twice daily decreased by 44%. MyHealthNewsDaily.com (9/19) LinkedInFacebookTwitterEmail this Story
  • NASA space telescopes spot earliest-known galaxy
    Scientists have discovered the earliest-known galaxy using NASA's Spitzer and Hubble space telescopes. After examining its distance through gravitational lensing, scientists estimated that the galaxy developed less than 200 million years after the big bang. Space.com (9/19) LinkedInFacebookTwitterEmail this Story
  • Endeavour starts final journey
    NASA's space shuttle Endeavour departed Kennedy Space Center in Florida at dawn Wednesday, beginning its multistop journey to the California Science Museum. The orbiter will pass over the spaceflight centers that played important roles in the shuttle program except Alabama's Marshall Space Flight Center. National Geographic News (9/19) LinkedInFacebookTwitterEmail this Story
  • Curiosity targets pyramid-like rock for instruments' testing
    The Curiosity rover is targeting a Martian rock that resembles a small version of the Great Pyramid of Giza to examine how its two important instruments work in tandem. The rock, named by the Curiosity team for the late NASA engineer Jake Matijevic, got scientists' attention due to its similarity with Earth rocks in terms of ability to retain heat. The Christian Science Monitor (9/19) LinkedInFacebookTwitterEmail this Story
  • Ancient baby burial site in Tunisia was not used for sacrifice
    Researchers said an ancient burial site in Carthage, Tunisia, called the Tophet, was not used for child sacrifice but as a graveyard for babies and fetuses. In a study published in the journal Antiquity, Jeffrey Schwartz of the University of Pittsburgh and colleagues argue that many tooth fragments at the site were developing tooth buds from fetuses and stillborn babies. Based on historical accounts, other scientists believed that Carthaginians killed children as a form of sacrifice and buried them at the Tophet, but those stories came from Carthage's enemies. "Some of this might have been anti-Carthaginian propaganda," Schwartz said. LiveScience.com (9/19) LinkedInFacebookTwitterEmail this Story
 
  • Researchers find beeswax filling in ancient tooth
    An ancient tooth with a beeswax filling may be the oldest evidence of therapeutic dentistry in Europe, according to a study by researchers including Claudio Tuniz, a nuclear paleoanthropologist at the Abdus Salam International Center for Theoretical Physics in Italy. Researchers discovered the filling while examining a 6,500-year-old lower jaw uncovered from a cave near Trieste, Italy. "In collaboration with our interdisciplinary team, we are planning to analyze other Neolithic teeth in order to understand how widespread these types of interventions were," said Federico Bernardini, an archaeologist at the international center. LiveScience.com (9/19) LinkedInFacebookTwitterEmail this Story
  Funding Watch 
  Research Policy Regulations 
  • Congress proposes 2 bills to promote science diplomacy
    Two bills in the House of Representatives that aim to boost federal funding for science research agencies in developing countries will likely be stymied, observers say. The International Science and Technology Cooperation Act of 2012 proposes the formation of a group that would be responsible for coordinating inter-agency domestic science and technology objectives. The Global Science Program for Security, Competitiveness, and Diplomacy Act aims to enhance partnerships between scientists in countries with lower-middle income, a Muslim majority as well as those in Sub-Saharan Africa and the Middle East. SciDev.net (9/19) LinkedInFacebookTwitterEmail this Story
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  Sigma Xi News 
  • 2012 Assembly of Delegates will be hosted virtually in November
    We look forward to working with our chapters and members worldwide as we come together on the Internet to share ideas and chart a course for the bright future of Sigma Xi. Won't you join us? Learn more. LinkedInFacebookTwitterEmail this Story
  • Connect with us on social media
    Are you active on Facebook, Twitter and LinkedIn? Sigma Xi is too, and we would love to continue the conversation with you online. Look for us on your favorite platform and let us know your thoughts today. LinkedInFacebookTwitterEmail this Story
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