Sentence examples for as a qualitative control from inspiring English sources

More precisely, we employ age dummies as a qualitative control representing the first three quartiles of sample firms ranked by age, with the fourth quartile chosen as the reference category.

Expression of β-actin was used as a qualitative control to normalize the protein levels for the Western blot procedure.

The ground station controls the UAVs by utilizing a qualitative control algorithm.

Each experiment included male or female wild-type DNA (for quantitative calibration and as a qualitative negative control), and positive control DNA with a known point mutation (as a qualitative positive control).

MMP control-1 (Sigma, Deisenhofen, Germany) was used as a qualitative positive control for MMP-1, -9, TIMP-1 and -2.

The IC50 value of the nonspecific small molecule DUB inhibitor N-ethylmaleimide was 16.2 ± 3.2 μM and can be used as a qualitative positive control for the screen.

Further, the number of individual proteins was much lower in vaccine B compared to vaccine A, which was expected of the live-attenuated vaccine B and the reason why it was used as a qualitative negative control.

This optional feature may be used as a qualitative or quantitative process control, for example, to determine the normalized copy number of BCR ABL1 per unit of white blood cells; however, this assay feature was not evaluated in this study.

Another qualitative control consists of several industry dummies following the sector logic of Deutsche Börse AG, with the sector "Telecommunications" as a reference category.

As a qualitative analysis to determine factors resulting in diffusion and uptake of key elements of the UNEST cluster randomised control trial, we reviewed UNEST internal project literature.

In her 22 years as a qualitative researcher, Dr. Livingston estimates that she has conducted 60,000 interviews.