The effects of a single 3.2 MeV proton delivered individually to cells could be measured, with less than 2% of the exposed cells producing micronuclei 24 hours later.
The intensity of the pre- and post-pulses which are 1% and 10% of a main 25 as pulse can potentially be measured with less than 10% error by two practical time-of-flight spectrometer designs.
"Effect transfer" (Zidek et al. 1996) occurs when two correlated pollutants are measured with differential exposure error, and the effect of the pollutant measured with more error is transferred to the pollutant measured with less error.
It is likely that birth length is measured with more error than birth weight and so the 'independent' effect of birth weight may simply be because it is measured with less error.
It is possible that in using stepwise regression for identifying predictors of the markers, the variables selected may be surrogates, appearing in the model when measured with less error or in place of unmeasured variables.
The implication of this observation is that those people are measured with less precision and confidence, which impacts the ability of the scale to reliably detect differences and changes in this region of the outcome space.
If possible, kcat should be measured with less error (e.g., using alternative substrates), in order to eliminate the possibility that phosphorylation affects turnover rate as well as binding constants, which would indicate mechanisms beyond simple steric interference with the active site.
If possible, k cat should be measured with less error (e.g., using alternative substrates), in order to eliminate the possibility that phosphorylation affects turnover rate as well as binding constants, which would indicate mechanisms beyond simple steric interference with the active site.
All of the information in the BRFSS is self-reported, and no independent validation of reported alcohol intake or physical activity can be made, although there is no reason to believe that these variables are measured with less accuracy in BRFSS than in other studies.
Directions can be measured with uncertainties less than 15° with the most accurate measurements occurring when the flow angles are relatively low – on the order of 20°.
