Data needs for the matrix often will be a combination of site-specific data, collected specifically for the systems-based analysis, and data from the literature, which always need to be assessed with respect to quality and appropriateness.
Other gender-specific information is also collected, specifically, current use of contraception among women, and circumcision and vasectomy status among men.
(i) A 'lab' strain that had been maintained in the laboratory for over 20 years since original field collection in Sumter County, SC, USA [ 5]. (ii) A 'field' strain, collected specifically for this experiment from Tift County, GA, USA in autumn 2011.
"In terms of nationally representative data, this is the one," he said, explaining that because this data is collected specifically for research purposes, it's more reliable that data that comes from hospital records.
The models in the study use historical population data recorded by hunters and state wildlife management services rather than data collected specifically for the study.
In many applied precision farming applications, remotely sensed survey data are collected specifically because these data correlate well with some soil property of interest.
Twenty-two mainly gabbroic rock samples were collected specifically for microbiological analyses (Table 1).
No additional data were collected specifically for this study, and the data were fully de-identified prior to analysis.
When modellers use data that were not collected specifically for the purposes of demographic insight, further problems arise.
A set of 54 adult serum samples was collected specifically for quantitative NMR, untargeted GC-MS and targeted (DFI) MS/MS studies, and a second set of 3 samples was collected and analyzed using quantitative lipidomics assays (TLC-methyl-esterification-GC-MS) developed by Lipomics Technologies Inc. (now Tethys Inc., West Sacramento, CA).
