This frequency appears to be higher than that in a previous study in which the 2-yr frequency of AE of IP was reported to be 9.6% [ 20].
Secondly, in a longitudinal cohort study in children with non-CF bronchiectasis, the only significant predictor of FEV1 decline (over 3-yrs) was frequency of hospitalised exacerbations [ 17].
On the contrary, from 3000 cal yr BP, fire frequency seems to be driven by agro-pastoral activities with a very regular distribution of events.
It remains unclear, however, if and how mountain catchments, as a primary sediment source, respond to these high frequency (<106 yr) climatic cycles, and whether particulate sediment flux signals can be expected to be recorded in the clastic sedimentary record of adjacent basin-fills.
CA is the concentration in the air (mg m-3), ET is the exposure time (24 hr d-1), EF is exposure frequency (365 d yr-1), ED is exposure duration (70 yr), and AT is an averaging time of 613200 hours (24 hr d-1 × 365 d y-r × 70 y), and IUR is the inhalation unit risk, which was 0.0033 (mg m-3 -1 m-3 -1Health Canada [ 31]).
Each permutated series YR is transformed to the frequency domain and a single peak of the periodogram IR is stored.
Each permutated series YR was transformed to the frequency domain and a single peak of the periodogram IR was stored.
The pollen transition at ca. 3000 1500 cal yr BP, distinguished by rising frequencies of Poaceae and taxa (including Cyperaceae and Artemisia) closely associated with agricultural land cover, indicates exploitation of newly formed lowlands in the emerging Min River floodplain.
Deletions in the yrs locus occur at a higher frequency compared to others regions within the chromosome [23].
A previous study that measured heteroplasmies in blood of individuals with different ages (0-60 yrs) found several heteroplasmic sites whose frequency correlates with age [ 20].
Frequencies of RR and YR stretches of 10 bp or more have been associated with several genomic and DNA structural features [ 1, 2].
