How errors in data, software, and methodology can teach us how to do better
In 2006, a paper in Nature Medicine suggested a novel and potentially revolutionary method for predicting patient responses to cancer therapies using gene signatures. The finding piqued the interest...
Sep, 01, 2011
A standard dictionary definition of a network is “an interconnected or interrelated chain, group, or system.” A cursory look at our surroundings shows that networks are ubiquitous. For...
Oct, 01, 2007
Structure-prediction algorithm searches for most likely conformation
If you want to find a Tab ‘A’ that will fit into a Slot ‘B’, you’ll waste a lot of time if you don’t know the shape of the slot. For scientists trying to design...
Jul, 01, 2006
Finding the Master Regulators
A cell may change states several times in its lifetime—from a stem cell to a specialized cell, for example, or from a normal cell to a cancerous one. Each time this happens, a veritable army of...
Apr, 01, 2010
Public databases impact not only how research is done but what kind of research is done in the first place.
The setting: a scientific conference in January 2008. The speaker, Bruce Ponder, MD, PhD, an oncology professor at Cambridge University, is describing a previously unknown link between a particular...
Oct, 01, 2008
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
How precise an image can fluorescence microscopy provide?
As modern optics and cell biology have flourished in recent years, they’ve each driven innovation in the other. Yet commonly employed imaging techniques, such as fluorescence microscopy, have...
Sep, 01, 2011
Seeking a non-invasive approach to cancer diagnosis and prognosis
In a radiological image, a tumor’s edges might appear fuzzy or crisp; its shape could range from oval to many-lobed; and its density and texture might vary across the tumor. To determine...
Jun, 19, 2013
A robot that develops hypotheses of its own
Robots already have a place in many labs, automating tedious tasks such as pipetting samples. But a new system designed at Aberystwyth University in the United Kingdom has taken laboratory automation...
Jul, 01, 2009
The fittest organisms survive and produce offspring, according to the Darwinian theory of natural selection. And the changes that make an organism fit happen at the molecular level: when genes mutate...
Oct, 01, 2007