Sentence examples for invariable variation from inspiring English sources

Positions E438, T439, Y441 and V442 were highly invariable (variation ≤1%) (Figure 1).

The bluest resonance band at 339 nm (or 340 nm), which was the out-of-plane quadrupole resonance, was nearly invariable despite the variation of the edge length of the triangles.

For phylogenetic analyses based on nucleotide sequences, GTR+G+I (general time reversible model + among site rate variation + invariable sites) was selected as the best-fitting model.

A Maximum likelihood tree was constructed in MEGA5.05 [ 14] using the General Time Reversible model including invariable sites and rate variation (GTR + I + G).

Lists all significantly (FDR ≤ 0.05) differentially expressed genes between any two brain regions identified by RUVseq after removing unwanted variation using invariable genes.

For phylogenetic analyses based on nucleotide sequences, the best-fitting evolutionary model was estimated by Model Test 3.6 [ 63], from which the GTR+G+I (general time reversible model + among site rate variation + invariable sites) model was selected.

We performed likelihood calculations for 24 models, which included 3 substitution schemes, equal or unequal base frequencies, a proportion of invariable sites and rate variation among sites with 4 rate categories on maximum likelihood optimized trees.

A mixed four-category discrete-gamma model of among-site rate variation plus invariable sites (JTT + Γ + Inv) and 10 random additions (jumbles) with global rearrangements were used to find the optimal trees.

Protein maximum likelihood distance bootstrap values for bipartitions were calculated by analysis of 500 resampled datasets using PUZZLEBOOT [ 27] with a mixed eight-category discrete-gamma model of among-site rate variation plus invariable sites (JTT + Γ + Inv).

In brief, aligned sequences were analyzed with PAUP* 4.0b10 [ 44] using maximum likelihood (ML) under a general time reversible model of sequence evolution [ 45] with some sites assumed to be invariable, and with rate variation among the remaining sites assumed to follow a gamma distribution [ 46, 47].

Trees were obtained for each of the 711 datasets using this script and the default PHYML settings, except that the Whelan and Goldman (WAG) substitution model [ 124] was used together with a mixed four-category discrete-gamma model of among-site rate variation plus invariable sites (WAG + Γ + Inv).