Sentence examples for background levels were calculated from inspiring English sources

The median and standard deviation of background levels were calculated.

Background levels were calculated locally for each spot using the median of the background pixels.

Background levels were calculated for each image stack as the average mean intensity value of several larger distributed areas devoid of any cellular processes (i.e., signal).

The background level is calculated as an aggregate summary of six to eight control probes with no target transcript.

In this manner, a background level was calculated as an average weekly incidence over a six-week period before the first virus isolation and a six-week period after the last isolation.

Each sample was measured relative to the background, and expression levels were calculated as the Optical Density (OD) ratio between the β-actin and L1-CAM of each sample.

Each sample was measured relative to the background and phosphorylation levels were calculated as the ratio between the results from the antibody directed against the phospho-proteins divided by the antibody directed against the phosphorylation state-independent form of the proteins.

The values were normalized by subtraction of the background absorbance and the PA levels were calculated as cyanidin equivalents using cyanidin-3-glucoside (Sigma-Aldrich, MO, USA) as standards.

Caspase-3 activity levels were calculated by subtracting the background value from the sample value.

The relative luciferase levels were calculated as follows: first, the background was subtracted from each value, and then the average values of the technical triplicate were calculated.

Ca2+i levels were calculated from the ratio of background-corrected fura-2 emission (520 nm) at two excitation wavelengths (340 and 380 nm).