Anastasio testifies before Senate subcommittee
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With Current Observations
Future predictions are less certain
More than a dozen centers around the world develop climate models to enhance our understanding of climate change and serve as the basis for policy decisions. But just how good are those models, and can they truly be relied upon? A new study by meteorologists at the University of Utah
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Lab scientists say estimates of HIV progression fell short
Discovery on disease's spread suggests it will be tougher to combat
When it comes to understanding HIV, looking at the big picture sometimes isn't enough. What's really needed to understand how truly prolific the virus is, is to look at the big movie. That's what Los Alamos National Laboratories researcher Alan Perelson did when he was trying to figure out how fast the disease replicates throughout the human body. And it turns out the big movie — a lifetime history of how the disease spreads from a single cell — shows that HIV spreads a lot more quickly than anybody previously thought. See the New Mexican story here.
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U.S. scientists say they've created a unique metamaterial that can be tuned over a range of frequencies in the so-called "terahertz gap." The team of researchers from Boston College, the Los Alamos National Laboratory and Boston University said they incorporated semiconducting materials in critical regions of tiny metallic split-ring resonators that interact with light in order to tune metamaterials beyond their fixed point on the electromagnetic spectrum. See the full story.
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Derek Smith didn't want to do rocket science--literally. That's how he ended up becoming an internationally recognized expert in influenza virus evolution. Smith wanted to create clear, accessible influenza maps. Just as mathematicians can reconstruct a decent map of a country from the distance table in the back of a road atlas, it should be possible to map influenza strains based solely on each strain's antigenic distance from the others, he says. So in 1999, Smith teamed up with Alan Lapedes, a mathematician at Los Alamos National Laboratory in New Mexico, who, with Robert Farber, had laid part of the theoretical groundwork for such maps. Read the whole story here.
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