These measurements are taken on a sampling basis; the time between samples varies between 2 and 120 seconds, depending on the relative need for the data.
EO data can be acquired wall-to-wall or on a sampling basis (in particular for very high resolution, VHR, data) across the region/nation of interest.
Following critics on the reliability and validity of data, a data quality monitoring system has been developed with controls on a sampling basis [ 18].
Concerning external quality management, it is in the responsibility of the associations of GKV accredited physicians (KV) to conduct the monitoring and control, on a sampling basis in the frame of G-BA guidelines.
In terms of semi-structured interviews, participants were recruited on a purposive sampling basis in order to obtain as wide a range of professional backgrounds as possible in proportion to the total numbers of participants from each group (Table 2).
The sentinel physicians participating in the GROG network reported the weekly number of acute respiratory infections (ARI) patients presenting at their practice, and collected information and provided, on a judgmental sampling basis, nasal/pharyngeal swabs from a subset of ARI patients presenting within 48 h of onset of symptoms.
A cross-sectional household survey was conducted among BPL households selected on a random, two stage sampling basis.
ACS estimates the minimum required sample rate subject to given sensing quality on a per-sampling-window basis and accordingly adjusts sensors' sample rates.
For example, recent Iraq mortality surveys have been heavily criticized on the basis that sampling methods assumed homogenous distributions of violence and static makeup of households, which are uncharacteristic of conflict settings [ 3, 4].
On the basis of these sampling results, we calculated the average flux and standard deviation of each reaction and plotted a histogram for each reaction (Additional files 3, 4).
On the basis of a sampling frame of 300 markets, every fourth market (the sampling interval) was selected from a list of all the markets.
