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Read the latest issue of IU Home Pages and learn more about the Distinguished Teaching Award recipients.
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The Trailing arbutus (Epigaea repens) blooms in early spring. The flowers, which can be found across eastern North America, must nevertheless be sought out -- the plant's population density is usually quite low. Trailing arbutus has played a central role in the history of Indiana University. It is the university's official flower and the eponymous inspiration for the Arbutus, the university yearbook.
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"Beyond The Five Senses: The Maps, Compasses and Sensory Biology of Sea Turtle Navigaion"
April 30, 2010
4-5 p.m.
Myers, Room 130, IU Bloomington
As part of the EEB Seminar Series, Kenneth Lohmann of the University of North Carolina studies the sensory biology, behavior, neuroethology, and evolution of marine animals. He is particularly interested in the navigation of long-distance ocean migrants such as sea turtles. He will discuss research in this area. The event is free. Refreshments will be served prior to the seminar. For more information, e-mail tduzan@indiana.edu.
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Scientists at Work: Hoosier Oncology Group
It was 1985. Ronald Reagan was in the White House. Gas cost about $1.20 per gallon. And a small group of young docs who had recently completed their fellowships in hematology/oncology at IU's medical school were talking about the fact that patients had to go to large, academic medical centers -- such as IU's Indianapolis-based campus -- to participate in clinical trials. While huddled in the cafeteria at IU Hospital, the late Stephen Williams, Patrick Loehrer Sr. and Lawrence Einhorn agreed it was odd that only doctors in academic settings could enroll patients in clinical trials. At the time, doctors who chose to practice non-academic medicine rarely participated in the scientific testing of new drugs and treatment protocols.
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Indiana University anthropologist Kristian J. Carlson was part of an international team with six other scientists announcing discovery of the fossil remains of a new species of early human that could help rewrite the path of human evolution. The two partial skeletons, dating from between 1.78 and 1.95 million years old, were discovered in South Africa and appear to represent features and attributes closer to humans -- the genus Homo -- than those from any other of our closest ancestors, the australopithecines. The new species, Australopithecus sediba, was announced in the magazine Science by principal investigator Lee Berger of the University of the Witwatersrand in Johannesburg, South Africa, and the research team.
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The world's largest antimony mine has become the world's largest laboratory for studying the environmental consequences of escaped antimony -- an element whose environmental and biological properties are still largely a mystery. Scientists from Indiana University Bloomington, the University of Alberta, and the Chinese Academy of Sciences have found the waters around Xikuangshan mine in southwest China contain antimony at levels two to four orders of magnitude higher than normal (0.33 - 11.4 parts per million). The scientists' report will appear in an upcoming edition of Environmental Geochemistry and Health (now online).
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To make large sheets of carbon available for light collection, Indiana University Bloomington chemists have devised an unusual solution -- attach what amounts to a 3-D bramble patch to each side of the carbon sheet. Using that method, the scientists say they were able to dissolve sheets containing as many as 168 carbon atoms, a first. The scientists' report will appear in a future issue of Nano Letters, an American Chemical Society journal.
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Indiana University Bloomington geographers have received funding from NASA to study the accuracy of satellite data used in climate change research. The $527,000, three-year project is led by Faiz Rahman, an expert on the use of satellite data to study complex terrestrial ecosystems. Rahman's co-principal investigators are Danilo Dragoni, geography assistant scientist, and postdoctoral fellow Daniel Sims. The relationship between reflected light (visible and otherwise) and the health or activity of forests, lakes and oceans is well established. Two forests of similar composition can produce vastly different intensities of a given range of light wavelengths, and these differences often indicate how productive the forests are.
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Could our universe be located within the interior of a wormhole which itself is part of a black hole that lies within a much larger universe? Such a scenario in which the universe is born from inside a wormhole (also called an Einstein-Rosen Bridge) is suggested in a paper from Indiana University theoretical physicist Nikodem Poplawski in Physics Letters B. The final version of the paper was published in the journal April 12.
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New information about early Native Americans' horticultural practices comes not from hieroglyphs or other artifacts, but from a suite of four gene duplicates found in wild and domesticated sunflowers. In an upcoming issue of Current Biology, Indiana University Bloomington biologists present the first concrete evidence for how gene duplications can lead to functional diversity in organisms. In this case, the scientists learned how duplications of a gene called FLOWERING LOCUS T, or FT, could have evolved and interacted to prolong a flower's time to grow. A longer flower growth period means a bigger sunflower -- presumably an attribute of great value to the plant's first breeders.
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The March 16, 2010, issue of Discoveries featured the Center for Genomics and Bioinformatics, an elite research center on the Bloomington campus. Also featured were stories on women physicists at CERN, the breast cancer drug fulvestrant, a new IUPUI science building, tuberculosis, an honor for biologist Yves Brun, and the relationship between alcohol retailers and violence.
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Some recent titles by IU researchers
"Synthesis of carbon-11-labeled tariquidar derivatives as new PET agents for imaging of breast cancer resistance protein (ABCG2)," Applied Radiation and Isotopes, June 2010, by M. Wang, D.X. Zheng, M.B. Luo, M. Gao, K.D. Miller, G.D. Hutchins, and Q.H. Zheng
"Understanding protein non-folding," Biochimica and Biophysica Acta, June 2010, by V.N. Uversky and A.K. Dunker
"Bio-enabled synthesis of metamaterials," Annual Review of Physical Chemistry, May 2010, by C.C. DuFort and B. Dragnea
"Egocentric and allocentric search: effects of platform distance and environmental cues," Animal Cognition, May 2010, by C. Tamara, J. Leffel, and W. Timberlake
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What's it like to be a graduate student at IU Bloomington? Get insider information from current graduate students as they discuss their experiences in academia and in community life in Bloomington and at IU.
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