Simulation was done by using sequential indicator simulation (SIS), which generated 1000 realizations of spatial distributions of the heavy metals, based on existing sample data, to represent the real distributions of heavy metals.
To develop our media sample we searched the Factiva database using key word searches to find English language media articles on CE published between 2002 and 2009, inclusively, based on existing media sampling methods [ 15, 27].
A 'hidden population' refers 'to a subset of the general population whose membership is not readily distinguished or enumerated based on existing knowledge and/or sampling capabilities' [ 15].
Users are thus, for example, able to calculate distance matrices for diversity estimates and taxonomically classify organisms in microbiome samples based on existing high-quality alignments.
Depending on the number of dilutions to be tested, whether samples will be tested in duplicate or not, and based on existing experience and logistics within a laboratory, thousands of samples could be tested per week.
Based on existing activity measurements, a reference and reduced sampling schedule ("case") were generated.
Sample size calculation based on existing literature has resulted in the need for 1400 patients followed for 2 years, based on the assumption that the n-3 PUFA supplementation will reduce MACE with 30%.
An analysis was developed for the calculation of the total infrared transmittance of polymer films, based on existing spectral transmittance measurements of fixed thickness polymer samples.
Simulation approaches for computing power and sample size that are based on existing gene expression data provide a powerful tool for efficient design of follow-up genomic studies.
While no census information was available, community leaders identified a potential testing sample of 367 individuals based on existing community lists.
