A years-long, city-backed effort to extend job protection to contracts that cover busing for preschool-aged students appears to be dead - at least for now.

The vote, which divided along state lines, marks a milestone in the years-long effort to ease congestion at O'Hare International Airport in Chicago.

He said it was the pivotal step in a years-long effort to obtain Federal protection for the canyon, 250 miles southwest of Denver.

The rules are part of a years-long effort by federal drug regulators to strengthen the oversight of the harvesting, sale and medical use of human tissue, mostly from corpses.

In addition, her rebuttal today was only the latest in a years-long effort by Mrs. Clinton and her supporters to portray the independent counsel's investigations as partisan.

The Gemini experiments were part of a years-long effort by astronomers and physicists at Minnesota to understand what contributes to the diffused light in the night sky.

But a years-long, city-backed effort to extend the same provision to contracts that cover busing for preschool-aged students appears to be dead- at least for now.

He said he hoped 2012 would be a turning point in years-long efforts to resolve the standoff over the North's nuclear weapons programmes.

Many of those who helped draft the measure defend it as a vital breakthrough in their years-long effort to pinpoint weaknesses in the science behind costly regulations.

That was a high-water mark for the years-long effort.