It therefore remains possible that the very high number of tRNA loci on this lineage and the high level of gene turnover observed may have permitted a shift in codon usage.
Reprograming of cell phenotype is made possible by changes in activation of master transcription factors, employing epigenetic modifications that preserve a flexible mode, permitting a shift between activation and silencing of genes.
In addition they may have been exercising above their anaerobic threshold which permits an upward shift in VO2 and an increased demand on central oxygen transport mediated by increased peripheral metabolism.
The drastically lower cost of nucleic acid sequencing provided by modern high-throughput technologies permits a paradigm shift away from in vitro and toward in silico enrichment techniques.
It is a fight over a change in environmental rules that makes it easier for developers to get permits, a shift that some have said is the most significant change in decades.
Corporal Oleski, who was killed in Afghanistan, was the third war casualty whose return to Dover has been covered by the news media since a shift in policy permitted it, with the family's approval.
Steven Norwitz, a spokesman for the company in Baltimore, said that it had been taking advantage of a shift in Security and Exchange Commission rules permitting "householding" -- the mailing of only one copy of fund reports and prospectuses to people who share the same address and who do not object to the change.
We expect, however, that marked difference could emerge with a shift in scale that would permit neighborhood by neighborhood comparison within an individual city or regional municipality.
The limitation on a court's inherent power described there applies only to fee-shifting rules that embody a substantive policy, such as a statute which permits a prevailing party in certain classes of litigation to recover fees.
This has resulted in a shift in clinical paradigms regarding hypercapnia from avoidance to tolerance, with hypercapnia increasingly permitted in order to realize the benefits of low lung stretch.
These findings have resulted in a shift in paradigms regarding hypercapnia - from avoidance to tolerance - with hypercapnia increasingly permitted in order to realize the benefits of low lung stretch.
