Sentence examples for by systematic sampling of from inspiring English sources

We quantified accurately the variations of the eruptive styles and processes through time by systematic sampling of key stratigraphic marker beds at proximal and distal locations, and the determination of grain size distribution, componentry, density and vesicularity.

Here we study the fine-scale genetic structure of Tricholoma matsutake, a prized edible and medicinal mushroom, by systematic sampling of mycorrhizas within fairy rings in 50-y-old and old-growth forests in two villages.

Total cell number was obtained according to the optical disector principle, by systematic sampling of counting frames of 15-µm side in each section.

We studied the prevalence of S. suis in slaughterhouse pigs in southern Vietnam by systematic sampling of pig tonsils in three slaughterhouses which received pigs for slaughter from different farms in 6 provinces and HCMC area in southern Vietnam.

The rural sample was chosen by systematic sampling of all adolescents of 12 18 enrolled at the two secondary schools in the village (one public and one private).

Using the list of nurses and doctors in each hospital as sampling frames, 50 nurses and 25 doctors were selected from each hospital by systematic sampling to give a total of 100 doctors and 200 nurses for this study.

The first-wave participants were selected by systematic sampling: 30% of subjects were sampled from individuals aged 45 to 64 years and 70% were sampled from individuals aged 65 years or older.

In each kennel, 20 boxes were sampled by systematic sampling (total number of boxes = 1360).

A fixed proportion of households from each neighbourhood was then selected by first choosing a random starting point followed by the systematic sampling of every fifth household until the neighbourhood target sample size was achieved (0.6% of households per neighbourhood in the formal zone and 0.9% in the Informal zone).

Fluorescence-activated cell sorting overcomes many of these problems by allowing systematic sampling of cells, providing a large sample of cells, which allows confirmation of purity of targets and also a better average of gene expression in a tumour.

In each center, subject selection was made by random systematic sampling of appointment records, obtaining 90% of the subjects from consultation appointments at the center and 10% from home visits.