With new technologies in oilfield production and the rising price of oil, the field has now become economically viable.

The scientists, however, insist that such advances simply haven't happened; the fetus is not becoming viable any earlier.

Now as his campaign has become more viable, he has been successful in raising funds from other sources.

Since the 1990s alternative waste treatment technologies have been maturing and becoming viable.

Agriculture has become less viable, which is one of the reasons why families have turned to crafts and sending members to other places to work.

Libraries, he says, are becoming less financially viable in countries like the United States.

Now it has become viable, both artistically and commercially, to be closer to the edge.

"But that policy has become less viable today, when people are demanding a harder line."

Safe transactions became viable and led to the first online casinos in 1994.

The success of this program led to this third network becoming commercially viable.