Sentence examples for assay operator from inspiring English sources

When data were analyzed according to assay operator, similar bias and limits of agreement were obtained for both laboratory technicians with biases of −0.17 and −0.07% and limits of agreement within −3.00 and 3.00 (Table 1).

The RPAC assay and PCR testing of animal and human samples were performed at separate institutions by different operators, with the RPAC assay operator blinded to whether specimens were from healthy or infected subjects.

Serum samples were distributed randomly in 96-well microtiter plates and the assay operators were blinded to case/control identity of all samples.

In all assays, samples were randomly distributed across plates to avoid confounding due to the plate location, and assay operators were blind to the disease status or time point of samples.

Thus, CTCs enumerated and characterized in this study were cells with positive nuclear staining expressing cytokeratin (CK) 8, 18, and 19, and lacking CD45 [ 11, 14]. Assay operators were trained to classify images generated by the CellSpotter™ Analyzer before study initiation.

These reasons include chance as well as variations in study population (e.g. severity of disease and co-morbidities), index test (differences in technology, assays, operator etc)., reference standard, and the way a study was designed and conducted [ 13].

Specifically, in Müller et al.'s experiments DNA-looping assays involved operator sequences that were located on the E. coli chromosome, whereas in Becker et al.'s experiments, operator sequences resided on single-copy F' episomes.

In our adaptation of this methodology, where normally a single operator assays the same samples twice, data from a pair of operators who assayed the same samples a single time were substituted into the calculations, as described in full detail recently [ 15].

In our adaptation of this methodology, where normally a single operator assays the same samples twice (or more), data from a pair of operators who assayed the same samples a single time were substituted into the calculations in order to characterise the relative error introduced by each.

However, assay-specific variability is still expected owing to underlying differences in test constituents, including varying nucleic acid extraction methods, target-specific amplification efficiencies, assay biochemistries, and operator-dependent variability.

This result implies a need to further assay construction equipment operation to critically isolate influences on operator skill development.