In reality, due to different reasons (availability, costs, manpower, different analysis from the same sample, size and time resolution, etc) in many networks and field studies a high variability of methods for aerosol characterisation is used and often those experimental figures will be used for statistical interpretations.
In addition to practical reasons (availability of samplers), we wanted to compare exposure levels for two particle fractions.
This poses a challenge as for ethical, practical, cost constraint reasons, availability of in vitro models with good in vitro in vivo correlations would be ideal.
The choice of which RDT to use was made for one of the following reasons: availability, resistance to high storage temperature (40°C), delivery time, and national policy.
For this reason, the availability of each mode, the locations of vehicles and the locations of available containers must be monitored and updated frequently (Giannopoulos [49]).
For this reason the availability of a suitable platform for the laboratory work becomes a critical decision, in order to promote students' motivation to experience the theoretical concepts studied in the classroom.
For this reason the availability of 25 Adriatic sturgeon of wild origin can potentially provide enough variability if correctly managed.
There was no particular reason except availability for using P. Americana instead of B. germanica.
Of those who said they would go to a government clinic, 55% gave as a reason the availability of free medicines, including ART, and 50% mentioned good service, including HIV testing (more than one response was allowed to this open question).
We have focused on gene expression data obtained from microarrays purely by practical reasons of availability: it is the most abundant genomic data publicly available.
