Media Relations
Thursday,
July 5,
2007
Science
The Indiana Geological Survey is celebrating the 175th anniversary of its founding this year. Now a research institute of Indiana University, the survey was formed to conduct the first geological study of the state.
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As evening twilight fades during February, the two brightest planets, Venus and Jupiter, will highlight the sky as they come into view in the southwest. The best time to observe brilliant Venus with a telescope will be during twilight. The brightness of the sky will reduce the planet's glare, and it will be higher above the horizon than when the sky is completely dark, so its image will be sharper.
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Studying self-replicating genetic units, called plasmids, found in one of the world's widest-ranging pathogenic soil bacteria -- the crown-gall-disease-causing microorganism Agrobacterium tumefaciens -- Indiana University biologists are showing how freeloading, mutant derivatives of these plasmids benefit while the virulent, disease-causing plasmids do the heavy-lifting of initiating infection in plant hosts. The research confirms that the ability of bacteria to cause disease comes at a significant cost that is only counterbalanced by the benefits they experience from infected host organisms.
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Marcia McNutt, the first woman to serve as director of the U.S. Geological Survey, will present two lectures Feb. 6 at Indiana University Bloomington: one on fossil fuel resources, the other on earthquakes and community resiliency. The lectures are free and open to the public.
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Indiana University Provost Professor of Anthropology Richard Wilk has been appointed to the American Anthropological Association's new nine-member Global Climate Change Task Force.
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An international team of microbiologists led by Indiana University researchers has identified a new bacterial growth process -- one that occurs at a single end or pole of the cell instead of uniform, dispersed growth along the long axis of the cell -- that could have implications in the development of new antibacterial strategies.
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