The end of pneumonia? New vaccine offers hope
In 2004, pneumonia killed more than 2 million children worldwide, according to the World Health Organization. By 2015, the number was less than 1 million.
Better access to antibiotics and improved nutrition account for part of the decline. But scientists say it's mostly due to vaccines intr ... more
Beware doping athletes! This sensor may be your downfall
Scientists searching for traces of drugs, bomb-making components and other chemicals often shine light on the materials they're analyzing.
This approach is known as spectroscopy, and it involves studying how light interacts with trace amounts of matter.
One of the more effective types of sp ... more
When proteins court each other, the dance moves matter
At every moment inside the human body, a carefully choreographed dance is being performed.
Proteins shake their bodies and wave their limbs, all with the goal of optimizing their interaction with other molecules, including other proteins. These tiny motions, called vibrations, enable the mo ... more