To derive the data shown in Panel B, a fluorescence threshold marker (M1) was placed, as shown, to demarcate the infected GFP positive cells.
The inclusion quality of the radiographs were condition numbers (spatial dispersion of markers within the bone fragment) for the marker models in the calcaneal fragments below 300 for each marker model, and a rigid body error threshold (marker fixation threshold) of maximum 0.5 mm.
Using a Δ Ct of 4.5 for a threshold for marker positivity (where Δ Ct= Ct mean 15-gene set− Ct B2M ), we observed that the sensitivity for nodal disease detection was 85% (17 out of 20 stage III and stage IV patients were correctly classified; see Table 3), whereas the specificity was 83% (15 out of 18 stage I and stage II patients were correctly classified; see Table 3).
In this way, a benchmark can be turned into a threshold, and a marker of achievement can become a barrier to learning.
To obtain maximum specificity, a threshold value for marker positivity, i.e. abnormal expression was set at three standard deviations from the mean ΔCt value for each gene.
Where a haplotype has a selective advantage above a certain threshold, the marker frequency moves very rapidly, so that the difference between the time of the first significant move in the marker frequency, and the time at which the fixation of the marker frequency is detected, can be small.
No data suggest a threshold for biological markers relevant to circulatory disease (Advisory Group on Ionising Radiation 2010; Little et al. 2010).
The program map_eval was used to calculate the difference in score between the best and second best positions for each marker; markers with a threshold of change below 0.5 were removed from the framework.
However, orthologous LG blocks covered the complete set of chromosomes of the analyzed species only when a threshold of four shared markers was used (fig. 1 b).
Although it is difficult to establish a threshold to declare a DArT marker redundant, we used a pragmatic approach and assumed that markers showing <80% sequence homology were less likely to be identical, because they should not hybridise to the same targets under stringent hybridisation conditions.
object lift onset was defined at the time at which the tangential velocity of the radius marker crossed a threshold (1 mm/s) and remained above it for longer than 500 ms. time to peak roll was defined as the latency between object lift onset and the time at which peak roll occurred.
