Sentence examples for tiered tests from inspiring English sources

Since higher tiered tests are only prompted by the risk assessment process, an iterative approach effectively focuses consideration to the most relevant concerns and conserves time resources.

Finally, an ideal approach to chemical hazard identification would consist of a set of tiered tests with associated levels of certainty.

Identification and monitoring of so-called endocrine-disrupting compounds has received ample attention; both the OECD and the United States Environmental Protection Agency US EPAA) have designed tiered testing approaches, involving in vitro bioassays to prioritize and partly replace traditional animal experiments.

Furthermore, the inclusion of human-cell based in vitro systems into an integrated DNT tiered testing approachuman-cell basedmended to cincumvitrosystems dintorences (Coecke et an. 2007).

It calls for a systematic transit from current resources, intensive and time-consuming in vivo whole animal-based testing, to in vitro mechanistic toxicity pathway-based assays on cell lines, using cost-effective, reliable, and high-throughput screening and tiered testing.

The special characteristics, endpoints considered and problems of current lower-tier tests are described and discussed.

In lower-tier tests single cohorts of a test species from different trophic levels and environmental compartments are examined in the laboratory under standardised conditions.

Moreover, it is stated that, two-tier tests are valid and reliable instruments which evaluate student ideas better, which are easy to score and apply.

Compared with the other approaches, two-tier tests are a more advanced approach as they consider students' reasons and interpretations for their answers.

The studies by Schmidt et al. [1] and the one we report about here are typical early tier tests carried out to determine a possible hazard that might require additional testing.

Topic covered in the first section include first-tier (minimum) and second-tier tests, sources of variability, analytical considerations, appropriate use of normative data and statistical tests, and evaluation of peripheral blood and bone marrow smears and histologic bone marrow specimens.