A possible limitation of both the NHANES and LIDPBC studies is the use of spot urine samples, which may constrain the accuracy of exposure assessment due to variable urinary dilution effects throughout the day [ 32].
Marker intersection between these maps is significant, but missing data, non-uniform data quality and anonymity of many markers constrain the accuracy of the map merging process and the resolution of synteny between barley and other genomes.
Finally, though the CFAS sample was population-representative in 1991, the age-specific prevalence of dementia is lower in 2011 [ 21] and so secular trends may constrain the accuracy of the delirium prevalence estimates.
While further analysis in gauged lake watersheds would be beneficial to constraining the accuracy of the method or calibrating it for operational use, it is nevertheless a powerful tool in its present form for lake-to-lake and regional runoff inter-comparisons.
Moreover, it would not face the problems that constrain the accuracy of curved lenses and so could make a perfect lens.Unfortunately, the only material with a negative refractive index to be developed so far worked only at wavelengths very much longer than those of visible light.
Scale issues constrain the accuracy of retrieval and limit the development of remote sensing applications.
Our results, that bees perform dances more precisely when they have an optical directional reference than when they have only a gravitational reference, suggest that the reference used by the bees for orientation while dancing may constrain the overall accuracy of the dance.
Such verification results help us understand and constrain the accuracy and reliability of ash transport models and it is of enormous relevance for designing future operational mitigation strategies at Volcanic Ash Advisory Centers.
Furthermore, the ability of probes to measure transcript abundance is constrained by the accuracy of sequences upon which the array was designed, which is particularly important given the high level of allelic variation in the V. vinifera species [ 25], and the genomic differences between commercial varieties.
As described in the above, we wish to choose the grid system parameters { λ i, l i }, 1 ≤ i ≤ m, as well as the number of scales m, to minimize neuron number: (9) N = d ∑ i = 1 m λ i l i, where d is the fixed coverage factor in each module, while constraining the positional accuracy of the grid system and the range of representation.
