Sentence examples for division of the tree from inspiring English sources

Following the pioneering ideas of Lynn Margulis on endosymbiotic theory, which holds that some of the organelles of eukaryotic cells originated from free living prokaryotic organisms through symbiotic relationships, even the overall division of the tree of life was revised.

The recovered plurality signal (fig. 1 A ) supports division of the tree into two groups: lower versus higher GC content genomes, hinting at possible hidden GC bias artifact in phylogenetic reconstruction of individual gene families.

In the specific case of CARTs (Classification And Regression Trees), possibly the most widely used CT in medicine, an impurity function (the so-called Gini index) is calculated, and for each division of the tree, the variable and its cut-off value are defined such that the decrease in the impurity function is the greatest [ 8].

The differences can be partly attributed to the behaviour of the Glasgow variable (different cut-off points or partitions) and to the influence of the COI variable in the different divisions of the tree branches.

To determine the number of potential orthologs between P. marinus and proteins from 21 organisms representative of the major divisions of the tree of life, [Additional file 2: Supplemental Table S1] we performed a clustering analysis on the non-redundant 21 genome protein sets along with the P. marinus EST ORF proteome using the OrthoMCL program [ 47].

The stability of cluster composition of the phylogenetic trees obtained by the distance and maximum likelihood methods supported the division of the phylogenetic tree into the 20 clusters.

With each division of the tracheobronchial tree there is a reduction in diameter of the bronchi, a shortening of their length, an increase in their number and a concomitant increase in the surface area (Hickey & Thompson 1992; Moffet et al. 1993; Weibel 1963).

Strikingly, the first and main division of the ionomic tree of unicellular eukaryotes is into eukaryotes with free-living life stages on one side and obligate endoparasites on the other.

Because of the extensive division of the villous trees, the total exchange surface area at term is about 13 m (Larsen et al. 1995; Syme et al. 2004).

I am now (June 16 , 2009 distributing my division of the GENIA 1.0 trees in Penn Treebank format.

In high biomass yielding crops, such as willow, the vascular cambium represents the majority of cellular division, and therefore, mass of the tree; so strictly regulated stress mechanisms and responses are not unexpected in stem tissue.