I was always sleepy while at work, and I think this exhaustion was because I felt trapped in a contradiction: the fast pace demanded complete focus on the task, yet that pace also made any real concentration impossible.
Over the years, long lines of them flounced out, cursing Procter's ability to change her mind at the last moment, her butterfly concentration, her impossible demands.
A large number of articles did not report information such as neutralization percentage, cell lines, the use of complement, and virus concentrations, making it impossible to fully adjust for these factors.
As for the laser dissected follicles, the total amount of RNA obtained (< 50 ng) was too small to allow accurate measurements of the RNA concentrations making it impossible to perform an evaluation of GAPDH.
Despite his concentration, it was impossible to remain impervious.
The small particle size and active surface area of nanomaterial make them capable to detect and investigate sensing analytes in very low concentration, and therefore, nanomaterials are capable to detect and monitor the toxic chemicals and organic pollutants in the environment at very low concentration which is impossible for a sensor with microstructure materials.
However, when measuring only the faecal S100A12 concentration, it is impossible to know from which part of the intestine they originate.
This cross-talk must be carefully measured and excluded, which can be difficult or, in the case of samples with high variation in each fluorophore concentration, most likely impossible to control (Swift and Trinkle-Mulcahy, 2004).
In this approach, survival times are not aggregated and the Cox proportional hazards model takes into account individual factors and quantifies their effects on the association between mortality and air pollution concentration, which is impossible with the case crossover design.
It's a feat of concentration I find almost impossible today.
