This was followed by wet chemical etching (H3PO4/H2O2/DI = 1 1 5 with an etch rate of approximately 1.2 μm/min) to define the ridge height.
Their use of relatively small geographic units of analysis (approximately 1500 persons) to define deprivation as a proxy for individual socioeconomic position likely provides less misclassification than would larger areas such as electoral wards.
It was observed that 74.9% (1676 of 2238) of the CDS represented on the microarray were present in all A. butzleri strains, and served to define approximately the core genes of A. butzleri (supplementary Table S6).
Judgement is required to select the size of each inventory to reveal useful detail without creating unhelpful complexity, and this analysis has aimed to define approximately fifteen elements per inventory while minimizing the "other" category.
The idea of the galactic habitable zone has been criticized by Nikos Prantzos, on the grounds that the parameters to create it are impossible to define even approximately, and that thus the galactic habitable zone may merely be a useful conceptual tool to enable a better understanding of the distribution of life, rather than an end to itself.
The fact that the Z-score is approximately normally distributed allows us to define p-values.
The scores for intensity and percentage were added, and a cut-off of 6, the median, was used to define two approximately equal sized groups of patients (with low and high RAD21 expression) for subsequent statistical analyses [ 13].
Before precise alignment between FLcDNAs and a genome, we first used blastn to approximately define genomic regions that correspond to FLcDNAs.
The percentile analysis demonstrated a cutoff of 2.6 (defining approximately the 30th percentile; Table 2) as the most sensitive and this was selected as the cutoff value used to define high vs low AURKA-CN for further analyses.
To approximately define inversions and other local gene rearrangement events, two consecutive intergenic regions were considered.
In conclusion, this is the first paper where phylogenetic analysis and genetic evolution are used to characterize HBV sub-genotypes D1 circulation in a selected and homogenous group of migrants coming from a restricted area of East-Europe and to approximately define the period of infection.
