Moreover, the accuracy and relevance of ancestral annotations (and thus of the whole analysis) may depend on the representativity of the sample of sequences; if certain annotations are clearly over-represented, then parsimony (and any ancestral reconstruction method) will tend to over-predict those annotations, thus producing erroneous results.
We consider also unstructured isotropic microstructures based on random adsorption algorithms and we carry out a convergence study of the representativity of the proposed unit cells.
A comparison between an experimentally measured profile of vanadium deposited inside the catalyst pellet and the simulated intraparticle profiles for asphaltenes and resins+ illustrates the representativity of the modeling approach and the importance of accounting for intraparticle diffusion when modeling residue hydrotreating processes.
The representativity of the results is better met, when regions are considered.
In this case the problem is how to decide the representativity of the opinions registered in Kundskap.
The variation between artificial corrosion procedures and within natural corrosion processes complicates the representativity of the cleaning tests for genuine historical objects.
Larger sample sizes and a greater representativity of the Brazilian population should be aimed, helping to improve the reliability of our results, the robustness of factorial structure and the amount of evidences of validity.
The difficulty of establishing the representativity of the information is one of several examples of how the planners cannot use the approved explicit methods to solve the key problems they wrestle with in their daily work.
For the representativity of the analytical sample to this target population, several assumptions must hold among which (a) missing data on any of the analytical variables must be completely at random and (b) the distribution of weights in the sample is invariant to this change in the target population (i.e. the sampling strata are not affected by this change in the definition of the population).
The representativity of the Betula sample towards the general population of the region of Umeå, Sweden has been demonstrated to be excellent [20].
