Breath sampling, transportation and storage considerations, contamination, adsorption, losses and lack of standardized methods, among other factors, have thus far precluded a reliable application of this biomarker on a broad scale (Hays et al., 2012; Ong & Lee, 1994).
From these considerations, a contamination of the signal by optical/ultraviolet light is ruled out.
Washburn, D. K., Washburn, W. N., Shipkova, P. A. & Pelleymounter, M. A. Chemical analysis of cacao residues in archaeological ceramics from North America: considerations of contamination, sample size and systematic controls.
Importantly, this test was highly accurate in diagnosing tumors (61/65, 94%) but was slightly less accurate in the benign bladder subset (12/15, 80%) perhaps due to small sample size considerations and/or contamination by adjacent microscopic tumor elements.
Landers carrying equipment for exobiological investigations require special consideration to reduce contamination by terrestrial microorganisms and organic matter to the greatest feasible extent.
In explaining the origin of FM in the CuO nanoparticles, a careful consideration whether the contamination is responsible for the FM has to be undertaken.
The values of a0 and a1 could be adjusted to allow consideration of such contamination if desired.
However, this study adds considerations about venous contamination of the MRA images.
Taking into account both experimental [ 35- 37] and quasi-experimental [ 29, 38- 40] studies, the reasons for the lack of effectiveness on certain outcomes, seems to be, besides methodological considerations such as contamination and lack of power, failure to adhere to the recommendations made and target those who would most benefit from an intervention [ 37].
On the other hand, the discrepancy with previous observations warrants further consideration in terms of contamination following invasive procedures during CPB.
