This classification approach may be somewhat more stringent than laboratories have applied to date.
This is a more stringent test than using laboratory wild-type flies, which may have co-adapted to laboratory rearing conditions.
That was dropped when the more stringent reporting requirement for laboratories was introduced, and never reinstituted.
Energy Secretary Bill Richardson's plan to require about 800 laboratory employees to undergo polygraph examinations as part of a more stringent counterintelligence program has drawn intense criticism from laboratory employees over the past few months.
However, even though real-time PCR analysis is rapid and more sensitive than conventional PCR method, it requires a more stringent sample processing and not all laboratories were equipped with real-time thermal cyclers which tend to be more expensive than conventional thermal cycler.
Critics of the current select agent system have called for more stringent regulation and a reduction in the number of laboratories handling dangerous agents.
More stringent criteria were used to identify a reference HKG list for laboratory experimental controls.
Vaccination should continue to be recommended, but laboratories with unvaccinated workers should also implement more stringent biosafety practices.
However, results of the several initial analyses that were based on more stringent criteria to define a case (e.g., was PCVAD verified by laboratory testing) confirmed the same conclusions with respect to temporal and spatial trends (data not shown).
Previous work from our laboratory has shown that the requirement for PE in Saccharomyces cerevisiae is more stringent on non-fermentable carbon sources, i.e. when mitochondria are fully developed, than on fermentable carbon sources [31,45].
