Regardless of the mechanisms that genetically shaped NPC1, we propose that polymorphisms in this gene nevertheless impose host barriers that impede the colonization and spread of present-day filoviruses in bats in Africa and elsewhere.
Comparing the results of reconciliation analyses to that of methods investigating simple congruence was important for identifying these constraints on host shifts imposed by host phylogeny.
This imposing church hosts AA meetings and toddlers groups, but tonight an old-fashioned hustings meeting is what's on offer.
To evaluate the effect of mutation and selection on phage codon usage, we developed an index to measure selection imposed by host translation machinery, based on the difference in codon usage between all host genes and highly expressed host genes.
The dynamics of host-tumor system, which entails co-evolution under the selective pressure that is imposed by host environments, including antitumor drugs, is highly complex and nonlinear.
This particular selection, which is probably imposed by host defences, emphasizes the potential role of cystatins as pathogenic factors and suggests that cystatins coevolve with host cysteine proteases.
This imposes a host of obligations on companies that want to do business with government.
Yes, the American sportswear giant did impose a host of conditions when signing a groundbreaking $200m contract with the Brazilian Football Confederation in 1996.
"A municipality may not, as White Plains sought to do, impose a host of compensatory provisions on one service provider without placing any on another," Chief Judge John M. Walker Jr. wrote for the unanimous three-judge panel of the United States Court of Appeals for the Second Circuit.
Some worry that the low policy rates and bond purchases of rich countries' central banks are planting the seeds of the next crisis as money scurries into emerging-market property, commodities and elsewhere in search of better returns.Central banks and regulators in emerging economies have already imposed a host of measures to cool property prices and capital inflows.
