catalysts

In Brazil, bus fares and corruption were only superficial catalysts for the rage in the streets.

In a conversation with Charlie Rose, Melinda Gates said that foundations must act as catalysts to spurn governments into action.

The cultural catalysts of 2011 in the Middle East are popular songs of protest posted on YouTube.

Many of the compounds are identical in structure, undergo similar changes, and are acted upon by similar catalysts.

Enzymes conform to all of these properties of catalysts, and are commonly defined as the "catalysts of living matter."

Professor Ewart of Melbourne has published an impressive account of researches on oxidation by organic and inorganic catalysts.

Hurt would come to Barbara as it came to everyone, but hurt, work and struggling were some of the catalysts that fused a marriage.

The postal agent and telephone operator were two other information catalysts.