Sentence examples for been made more stringent from inspiring English sources

That testing began in 2003 and has been made more stringent since then.

In their final form, the guidelines have been made more stringent, by addition of a new level of review.

Since its first description by Teele and Smith in 1977 [ 1], the diagnostic criteria for pyloric stenosis on US have been made more stringent [ 12- 14] in an attempt to minimise false positive results and unnecessary surgery.

In this highly insecure environment, unless the rape laws are made more stringent, and rapists are seen to be convicted, what happened this week will happen again.

In addition, a new border agency would have expanded powers to detain people suspected of terrorist activity, visa requirements would be made more stringent, and foreigners would be required to carry biometric ID cards, he said.

Unless accounting rules for Annex 1 countries are made more stringent, then Annex 1 countries will be able to formally comply with their pledges with very little actual mitigation and possibly none at all".

This observation is consistent with results reported in [19]: the throughput is degraded significantly when the interference constraint is made more stringent; therefore, the performance of the underlay approach depends mainly on the interference constraint.

However, the tribal eligibility qualification was made more stringent.

Agency watchers speculate that the standards, currently at 75 parts per billion, will be made more stringent.

"The problem is that while emission norms were made more stringent and pollution levels dipped, the increase in vehicles skewed the matter," A B Akolkar, a member of India's Central Pollution Control Board, told the Indian Express newspaper last year.

Clearly, the optimization strategy of SPI could be made more stringent by prolonging the growth/selection interval.