The vaccine has already proven effective at preventing the disease in half of those vaccinated which is more than ever before.

VOA: special.2009.12.22

Research by the International Center for Agricultural Research in the Dry Areas and its partners has already proven to be successful.

VOA: special.2010.02.08

They said a new,non-steroidal treatment made from a human protein has proven successful in greatly decreasing the signs of asthma in mice.

VOA: special.2010.09.07

"It is crucial that national authorities do not rush to give information on source of infection which is not proven by bacteriological analysis, as this spreads unjustified fears in the population all over Europe, and creates problems for our food producers selling products in the EU and outside of the EU."

VOA: special.2011.06.10

in the country since they first arrived in 2001, and 2009 has proven to be the deadliest yet in terms of losses.

VOA: standard.2009.11.04

And the fact that all of our visas are fingerprint,bio-metric fingerprints based on ensuring that that person's identity is proven is a very important factor in this,".

VOA: standard.2009.12.28

"What we've proven to be useful and what does work is having a person in a stressed state, and then reducing that stress because it's that contrast is what motivates a person to cooperate, what motivates a person to start talking.

VOA: standard.2009.04.17

"Since that time we've really learned that as close as they are to human species, they're not close enough for any real scientific outcomes for drug testing.I think like that" That's Elizabeth Kucinich, wife of U.S. Congressman Dennis Kucinich, she is a long-time animal welfare advocate and serves as director of public affairs, for the Physicians Committee "Over 80 different HIV-related vaccines have worked in chimpanzees but none have proven effective in human beings.

VOA: standard.2010.02.16