Spatial coverage was achieved through one time sampling at seven landfills in Massachusetts and through data provided by nine UK landfills for CFC-12 and CFC-11.
Because one time sampling may not adequately estimate fungal abundance and richness in the community, we combined the vegetation values and the two air sample values to give one index of fungal abundance from each site and one index of fungal richness from each site (Table 2).
We analyzed a limited one-time sample of foods purchased from supermarkets in only one geographic location, and, perhaps more importantly, did not evaluate foods as packaged, processed, or served in homes or restaurants.
Thus, although we only collected a one-time sample from each of 43 digesters, it may represent the properties of a bacterial community structure in a specific biogas digester.
Discrete, one-time sampling may not only fail to record some seasonally occurring forms, but also give little information about changes in the species composition, including local extinction, over time as a consequence of natural events or human interference.
The approach we undertook, by virtue of its design of repeated sampling, shed more light on the dynamic of the infection in the population to a cross-sectional approach which reflects a one-time sampling [ 22].
They only measure the amount of creatinine in your blood and urine from one-time samples taken within the past 24 hours.
The fluorescence-binding assay described here enables parallel analysis of many samples at one time with minimal sample consumption.
A pollster shouldn't have a 35% Democratic-identified sample one time and a 25% sample the next, except when there have been changes to the electorate such as increased Democratic enthusiasm after the Democratic National Convention.
