But their technology was based on the luminescent abilities of small organic molecules--single molecules--in contrast to the large ones--chains of molecules--Friend utilized.

FORBES: Innovators

By contrast, single-family home building, which makes up nearly two-thirds of the market, fell 4.8 percent to an annual rate of 619, 000.

NPR: US Housing Starts Surpass 1 Million In March

By contrast, few makers of single-purpose devices seem to understand that less is more.

WSJ: Are Multipurpose Devices Better Than Products That Perform One Function?

By contrast, the Wine Spectator didn't award a single 100-point score in 2012.

WSJ: Wine Ratings: Remaking the Grade | On Wine by Lettie Teague