For example, errors in data sources are caught by the in-build test that halts the build until the error can be identified and fixed.
Cells have a surveillance system known as the spindle assembly checkpoint that halts cell division until every chromosome is correctly aligned on the spindle.
Spindle assembly checkpoint: surveillance mechanism that halts cell cycle progression until all chromosomes have attached to the spindle.
The groups are calling for a new generation of environmental laws that protect critical habitats for threatened species, that halt projects until information about the scale of the impacts is known, and that explicitly deal with impacts on the climate.
Scores of Arab and international human rights organizations have submitted a petition to the Arab League demanding that it suspend Syria as a member until that nation halts its crackdown on demonstrators who are demanding democratic change.
Palestinian officials, meanwhile, contend that until Israel halts settlement activities in the West Bank, talks between the nations can be little more than superficial chatter.
Her colleague Dr. Shim Sang-duk said that until it halted the practice in September, their Ion Women's Clinic in Seoul did 30 abortions a month, twice the number of babies delivered there.
A Nasdaq spokesman said MCI requested that the halt continue until early Monday.
Previously it has estimated that North Korea probably extracted enough plutonium from a nuclear reactor to build one or two weapons, until that program was halted in 1994 in a confrontation with the United States.
For all its pervasive wildness, the second movement, an Aria, begins with a wistful melody, luminously harmonized, until a halting brass chorale that sounds as if it has wandered in from another piece intrudes and the music again turns volatile.
Publicly, he has said there can be no negotiations until all violence halts, but he has privately suggested that he came up with the plan offered by Mr. Peres.
