The Alzheimer's Association says FDA-approved drugs are effective for half the people who take them.

VOA: special.2011.02.08

She says the online tool was very effective for those who used it at least once a month.

VOA: standard.2010.07.30

So she says(In other words) while emergency contraception is effective for individual women, advance provision can't be expected to make a different in the community.

VOA: standard.2010.03.22

"I am sure that the cooperation between the countries in the field of strategic security is more effective for both Russia and the United States than any AMD , any armed forces or any military operation."

VOA: standard.2009.09.17

The Race to the Top competition will look for states and local school systems with effective reforms in four areas.

VOA: special.2009.07.30

The Centers for Disease Control says HEPA filters are effective in clearing the air of many particles that cause disease.

VOA: special.2009.07.14

In the United States, the Armed Forces Radiobiology Research Institute is looking for more-effective treatments for radiation exposure.

VOA: special.2011.03.30

And it sank,too. The Confederacy also developed very effective underwater explosive devices for use in the harbors.

VOA: special.2009.09.10

The others lost their jobs because they were rated "minimally effective" for a second year.

VOA: special.2011.08.11

The country has not had an effective government for almost twenty years.

VOA: special.2009.04.25

Over at competitor General Electric, actor Ronald Reagan -- later the fortieth president of the United States -- and often referred to as the Great Communicator, was for many years an effective commercial spokesman every week on the GE Theater.

VOA: special.2011.07.21

Aimee Picchi, who writes about business and marketing for AOL's Daily Finance, says studies have shown the ads are quite effective.

VOA: standard.2010.01.27

Meanwhile,expedited efforts are going forward on several continents to develop an effective vaccine for the new strain of influenza.

VOA: standard.2009.04.30

Economists have long considered government spending, especially on infrastructure, to be an effective tool for revitalizing a stagnating economy.

VOA: standard.2009.10.16

Dr.Priego says so far the combination has been effective in prolonging life for patients with pancratic cancer.

VOA: standard.2010.01.12

Researchers in Melbourne hope to isolate the most effective compounds for use in a potential vaccine.

VOA: standard.2010.01.20

Noor Huda Ismail, with the International Institute for Peacebuilding in Jakarta, says Noordin was the most charismatic and effective advocate for violence for Indonesian militants.

VOA: standard.2009.09.21

"Toyota engineers have developed effective and durable solutions for the vehicles we have recalled."

VOA: standard.2010.03.04