Because the environment of an amino acid site is more stable within a slowly-evolving protein, covarion provides the least opportunity for path-specific neutrality and should lead to the smallest reduction of P in such proteins.
Specifically, neutrality is established for specific (polynomial) classes of prescribed states of stress in the surrounding matrix.
Craig Moffett, an industry analyst, says the FCC could decide to attach specific net-neutrality conditions to the Comcast deal, although others think a separate ruling is more likely before a merger decision is reached.
The first test examines branch specific departure from neutrality (or a dN/dS = 1.0).
First, dN/dS ratios were calculated for the entire mitogenome and for each gene separately to test for lineage-specific departures from neutrality (ratios significantly greater than 1.0 are evidence for directional selection).
(Even in such a case, however, if it were pursuing specific microeconomic policies, its neutrality might hide significant effects on the behaviour of the economy).
Second, the branch-sites model A test 2 [ 30] in CODEML (PAML 4.0, [ 31]) was used to test for departures from neutrality at specific substitution sites, since dN/dS analyses of whole mitogenomes and whole genes may be insensitive for detecting selection acting on a small number of important substitutions.
Neutrality had a specific meaning: no adherence to a military alliance and no foreign troops on one's soil.
While all parties embraced some version of the neutrality doctrine, the specific choices posed by the ongoing competition for supremacy in Europe between England and France produced a bitter conflict.
For the second time in a year, it asked the public to comment, on three specific questions relating to net neutrality and expanding internet access, with a deadline of 30 December.
Here, we use "incompatibility selection" to describe selective regimes characterized by neutrality within a specific demographic unit and negative selection elsewhere.
