Scientist at Work: Dale Sengelaub

Dale Sengelaub When not playing the blues in Bloomington, Dale Sengelaub -- a member of Indiana University's Department of Psychological and Brain Sciences -- is studying how motor neurons respond to hormone treatments. His research could help severed limbs heal in half the time and assist those afflicted by Lou Gehrig's Disease.  Full Story

Climate change threatens Amazonian small farmers

Eduardo Brondizio

As Amazonian rainforests dwindle amid logging and climate change, much of the discussion has tended to focus on the loss of species diversity and alterations to Earth's atmosphere. Lost in these considerations is how climate change also may affect the tens of thousands of Brazilian small farmers who live near the forests and who depend on the land to feed themselves and their families and eke out a meager income. A six-year study of Amazonian small farmers and their responses to climate change shows the farmers are vulnerable to natural catastrophes and risky land use practices, say Indiana University Bloomington anthropologists Eduardo Brondizio and Emilio Moran.

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The downside of a good idea

Robert Goldstone

Good ideas can have drawbacks. When information is freely shared, good ideas can stunt innovation by distracting others from pursuing even better ideas, according to Indiana University cognitive scientist Robert Goldstone. The findings speak to innovation and the bandwagon effect as it influences decision-making within groups. The Internet and new technologies are increasingly offering opportunities for interconnectedness, for cutting-edge scientists to the "average Joe" posting or reading book reviews on or entries in Wikipedia.

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Updating the "Bible of Particle Physics"

MINOS Detector

After many trials and tribulations, Indiana University Professor Stuart Mufson and former Indiana University graduate student Brian Rebel made a discovery that was recently reported in a book Mufson calls "The Bible of Particle Physics." The book, published by the Journal of Physics, is better known as the Review of Particle Physics. "I've been studying cosmic rays for 25 years and have never had a result reported there before," said Mufson. "And that's it. I'll probably never do it again."

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Uncharged organic molecule can bind negatively charged ions

Binding molecule

Indiana University Bloomington chemists have designed an organic molecule that binds negatively charged ions, a feat they hope will lead to the development of a whole new molecular toolbox for biologists, chemists and medical researchers who want to remove chlorine, fluorine and other negatively charged ions from their solutions.

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Previous issue

Sarah Trimpin

The Feb. 19, 2008, edition of Discoveries featured Sarah Trimpin, an IU research associate in the Chemistry Department. Also highlighted in this issue were stories about honors bestowed on an IU biologist, details on the Kitt Peak National Observatory near Tucson, Ariz., an overview of the School of Optometry's future Eye Care Center, and information that breaks down Huntington's disease one protein at a time.

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