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

VOA: standard.2010.01.12

Some economists say this second round of what is known as quantitative easing, or "QE2," has not been effective.

VOA: special.2011.04.29

The visa for James Elder, an Australian,has been canceled effective Monday, but officials say after an appeal from the United Nations he will be allowed to stay there under September 21.

VOA: standard.2009.09.06

It can ensure that poor,rural people, whose lives and livelihoods, depend on the earth's productive capacity, have the means to produce more and to produce it better, GDP growth generated by agriculture has been shown to be at least twice as effective in reducing poverty as growth in other sectors. In recent years, more attention is being paid to the importance of smallholder farms.

VOA: standard.2010.03.29