International issue | January 2013
S&T Policy
Science
muscular dystrophy
![](/wp-content/thumbs/d7fb0b89a1afd6ec01a8bd0df8edee096a068bac_300-200cropped.jpg)
Joint treatment
The combined use of stem cells and a growth factor reduces disease symptoms in mice
By Marcos PivettaTechnology
New materials
![](/wp-content/thumbs/20f5a482bcf966884cdcbc67c2a609fc00dd685a_300-200cropped.jpg)
The value of impurities
Brazilians discover a new family of materials that conduct electricity without losing energy
By Ricardo Zorzetto