Sentence examples for by the background value from inspiring English sources

The tumor-to-background ratio was calculated by dividing this maximum value by the background value surrounding the tumor.

Each reference image was thresholded by the background value obtained from the images of uninfected embryos.

Also, a signal-to-noise ratio was obtained for all of the hybridised filters by dividing the mean of the raw data by the background value.

For every PDI activity assay, final values were determined by subtracting the background value, obtained by measuring the absorbance of a protein extract-free control, from the mean±S.D. resulting from the reading of two independent samples.

Cellular oxidative capacity of the LAC, PYR, or BHB was calculated by subtracting the background value of each substrate and standardized by protein contents.

The same area of interest was used for all sections, and all values were corrected by subtracting the background value achieved from the cortex of each section.

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

A background-subtracted image of the radioactivity was then obtained by subtracting the background value for each pixel from the original image.

After outlining the densely packed pyramidal layer, the intensity of CA1 UCP2 staining was calculated in arbitrary units by subtracting the background value (determined outside the pyramidal layer in the same image) from that of the defined pyramidal layer.

They were computed considering the time when the signal increased by 3 dB from the background value.

The activities of both MMP-2 and MMP-9 were analyzed for the different age groups by subtracting densitometric readings from the background value and normalizing the data by using the number of viable cells determined using the MTT assay.