Sentence examples for maintained by substantial from inspiring English sources

However, numbers alone may provide a misleading assessment of population sustainability as these could be sink populations maintained by substantial immigration from less contaminated locations where successful reproduction still occurs.

Given the CpG → TpG/CpA mutation rate is about one order of magnitude higher than the reverse (Duncan and Miller 1980; Bulmer 1986; Sved and Bird 1990), 1) neutrally evolving codons will move toward a lower frequency of CpG; 2) CpG's at functionally significant codons will be maintained by substantial purifying selection against amino acid changes.

From an infection control perspective, it is important to recognize that cryptic transmission cycles of tick-borne pathogens maintained by nidicolous ticks have substantial human and veterinary health risk implications when sympatric exophilic tick vectors act as a bridge to potentiate human or livestock infections.

Thus, although part of the neighbor coexpression is likely maintained by natural selection, it is likely that a substantial component of neighbor coexpression is nonselective "leaky" expression of one or both neighbors.

If the mutation rate is sufficiently high, then the equilibrium frequency of the a allele, maintained by the balance of selection and mutation pressure, can be substantial.

In summary, although a fraction of the Nc nucleotides within SSs is maintained by selection, the abundance of deleterious nucleotides in this class suggests a substantial genome-wide drift load.

A substantial body of evidence supports the hypothesis that neoplasms are initiated and maintained by a small population of cells within a tumour that possess properties similar to those of normal adult stem cells (Lobo et al, 2007).

Since these events most probably follow a Poisson distribution, it can be expected that a substantial fraction of essential genes would be inactivated very quickly, leaving only one copy that is then maintained by selection.

It is maintained by caucus staff.

Maintained by us, for us.

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