The study of HIV evolution is not only critical to fighting the virus; it has also driven advances in the computational tools used to study evolution in general.
When Darwin published On the Origin of Species in 1859, it would be decades before HIV would jump from monkeys to humans and set off a devastating worldwide pandemic. But evolution is at the heart of...
Jul, 01, 2009
Using computational models, researchers are gaining traction toward understanding what makes a stem cell a stem cell; how gene expression drives stem cell differentiation; why studying stem cell heterogeneity is important; and, ultimately, how stem cells control their fate.
To the casual observer, stem cells offer the almost magical promise of—Voila!—turning into exactly the kind of cell needed to repair an injured spinal cord or replace a damaged organ. And...
Apr, 01, 2010
I'd like to pay homage to James Burke and his inspiring PBS show Connections by taking you on my own short journey of connected ideas.
The timeless game of chess has long been a grand challenge for artificial intelligence, with the number of possible games being much greater than the number of atoms in the universe. Baron...
Jan, 01, 2006
T-Rex in the Slow Lane
by Kristen Cobb
Tyrannosaurus rex is often pictured baring its teeth, crouching, and running swiftly after its prey, but these images are largely based on human fancy...
Jan, 01, 2006
Postdocs get a glance at the entire field and their first inside view of NIH grant-making
If he were a graduate student now, Francis Collins would be studying computational biology. That’s what the Director of the National Institutes of Health (NIH) told a rapt audience at the...
Feb, 19, 2013
Capturing meaning in functional MRI
Thinking of a noun—a peach, train, or bird, for example—activates specific parts of the brain. Now, scientists have trained a computer to predict such activation patterns. The...
Oct, 01, 2008
Many systems models are strikingly vulnerable to even small changes in the variables
Systems biologists seek to model many complex biological interactions all at once. Typically, they input tens or even hundreds of variables to produce predic- tions about a system—for example,...
Jan, 01, 2008
Advances in visualization changing work flows for understanding molecular dynamics, tracking cell movements, and designing interventional procedures
The pathway from raw data to valuable visualization of molecules, cells or organs being simulated over time involves several potentially painstaking steps. Typically, researchers must generate a set...
Sep, 02, 2011
In a classic cartoon, a physician offers a second opinion from his computer. The patient looks horrified: How absurd to think that a computer could have better judgment than a human doctor! But...
Jan, 01, 2010
Biomechanical models contribute to a better understanding of both the normal and the diseased eye.
Squint, and you can almost make out that bird soaring over the horizon. But determining whether it’s a hawk or a raven will be nearly impossible for someone with myopia, also known as...
Feb, 19, 2013