We similarly expect that any do novo mutations or reversions that arise during viral growth should be limited to single-nucleotide changes given the short duration of viral passage in our experiments.
In the Age of Sail, the duration of such passages depended much on the prevailing winds and the weather.
Cells were cultured for 48 h and then passaged into a new flask with the same surface coating at a density of 500,000 cells/T25 flask, for the duration of three passages.
Crusoe's enemy is duration – the passage of those drearily uneventful decades – and he triumphs because of his capacity for endurance.
Local schools and beaches were also closed for the duration of the storm's passage.
Inland, as a precautionary measure, rail operations along the coast were halted for a duration of the storm's passage.
Differences of initiation in ethnic groups are a common sense in anthropology, I cite a few examples above, just intending to emphasize that although initiation usually is regarded as a typical example of rite of passage, its complexity, duration, and even it exists or not are difference according to ethnic group.
New agents such as SonoVue (BR1, Bracco, Italy), which is effective at low MI will shortly be available, which should increase the duration of enhancement, allow several passages and more effective parenchymography [ 22].
Measured variables of burrow architecture (number of entrances and depth of nest) and of mothers' activity at burrow entrances (mean number of readings per bout, mean duration of bout in seconds, and passage speed in readings per second) originated from a single burrow.
