The optimal threshold value (OTV), the gray-level required to separate the background (sky) and the foreground (leaves), was analytically calculated using the entropy crossover method (Sahoo, P.K., Slaaf, D.W., Albert, T.A., 1997. Threshold selection using a minimal histogram entropy difference. Optical Engineering 36 7) 1976–1981).
The analysis was performed for oligonucleotides of length k = 17 or 20 and reconstruction of major sequence variants was done using a minimal seed k-mer frequency of 0.0001 and extension threshold of 10%.
Researchers have attributed this to several factors including insufficient population size, unstable statistical thresholds for detecting putative loci, using a minimal number of molecular markers for analyses, and the low heritability of target traits [ 27].
Another approach is to use a minimal protective threshold antibody titer as a categorical variable in a logistic regression model.
Associations between protection and a minimal threshold antibody titer are usually analyzed using the Chi-square test (x) or Fisher's exact test.
To maximize the number of face-selective regions of interest (ROIs) identified across participants, ROIs were identified using the contrast of faces (familiar + unfamiliar) > scrambled faces, at a minimal threshold of P < 0.001 uncorrected (10 contiguous voxels).
Face-, scene-, and object-selective ROIs were identified at a minimal threshold of P < 0.01 uncorrected (10 contiguous voxels) using the contrasts faces > houses/scenes, scenes > faces, and objects > scrambled objects, respectively.
In both these cases, ordinary people used technologies of connection to help them steer their own affairs, not merely managing complex domains to a minimal threshold of competence, but outperforming the official bodies formally entrusted with their stewardship.
Foremost, this strategy is expected to have a minimal threshold limit of detection, and thus the minimum number of cancerous cells that can be detected by using the ex vivo imaging system needs to be determined.
