New approaches extend multiscale models to represent cellular mesoscales and bridge from molecular to cellular models
In an era of increasingly comprehensive molecular characterizations of living systems, computation has emerged as a key technology to facilitate integrative understanding of biological mechanisms....
Feb, 19, 2013
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
How cell-centered models are adding fundamental insights into our understanding of cell behaviors
The cell is like our financial system: Even if you have a diagram of all the complex interactions going on, you still cannot intuit how the whole system will react when perturbed. Indeed, the cell...
Apr, 01, 2010
Researchers are expanding the types of data that can be used to predict infectious disease spread; developing novel ways to analyze that data; and trying to create systems that can help address public health problems today
American officials are seeking better ways to anticipate public health crises following ten years that have seen outbreaks of SARS, avian flu, H1N1, West Nile virus, cholera and, most recently,...
Apr, 01, 2011
Multi-scale modeling is now at what might be called its gestational stage
For centuries, mathematics has been an indispensable ally of the physical sciences and engineering. Planes fly and telephones work because engineers know how to simplify physical systems into...
Apr, 01, 2006
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
Incremental progress and measured successes
Personalized cancer therapy is now a reality. A handful of tumor-classifying tests and targeted drugs are in widespread clinical use; and early attempts are underway to match high-risk cancer...
Jan, 02, 2012
Computing using time steps -- a necessary approximation
Time flows like a continuous, steady river. And it moves forward—never back. These facts create inherent challenges for computer simulations of biological molecules in motion.
It would...
Jun, 19, 2013
Today, the knowledge, experience and memory of clinicians or scientists function as the exclusive resource for distinguishing normal from abnormal brain images; identifying signatures or biomarkers...
Jul, 01, 2009
Using computation, researchers narrow the search space for directed evolution; guide mutagenesis; and create de novo enzymes
Enzymes are among nature’s crowning achievements: they accelerate chemical reactions, making life possible. People have co-opted natural enzymes for industrial use for thousands of years (think...
Feb, 19, 2013