Phylogenetic trees of the HA protein therefore have a distinct, spindly shape with little branching and one long 'trunk', a shape indicative of narrow antigenic drift.
Auroral westward flow channels (AWFCs) are intense, narrow channels of westward drift overlapping the equatorward edge of the auroral oval in the pre-magnetic midnight sector.
For the sake of our country and ourselves, this must be stopped and the drift to narrow racialism checked.
We minimized the errors in locating the regions that have undergone selective sweeps caused by random drift or narrow genetic diversity by including a large diverse panel of accessions derived from different ancestral populations, e.g., Asia, Europe, and America as well as a wide range of ancestral populations from Africa.
Paddling through the waves, drifting into narrow channels between the islands, keeping eyes peeled for dolphins, porpoises and whales, you need a little kayaking experience.
At dusk and just after, it drifts in narrow banners, head-high, across the low spots in the country north of the city.
If plane debris is found and drift calculations sharply narrow the search area to a few dozen miles, the additional equipment can be put to use.
Peter Foley, the ATSB's director of Flight 370 search operations since the outset, told AP that he hoped the enhanced drift modelling would narrow the next search area to a band of 5 degrees of latitude, or 550km (340 miles).
On those narrow streets below, pungent aromas drift through the outdoor markets, where both locals and visitors mingle about to pick up that day's fresh ocean catch, deeply discounted T-shirts, shorts and shoes, and other trinkets for friends back home.
Data with a lot of information on the process will remove the variable covariance structure and will create a narrow channel around the true drift where realizations of the random walk can be found which represents the posterior of the log-baseline hazard function.
