"That might only happen in a couple of spots that are theoretically difficult to grab with a camera," Korfiatis said.
Thus, the latter renders it impossible to further investigate the organism, as it is theoretically difficult to detect extreme minorities such as one or fewer in 1000, whereas NNMA offers the possibility of detecting, in principle, a minority of 1 in 10000 if twenty or more 1024-well MMV plates are used in the dilution with the expectation of 0.5 cell/well.
Preaching liberty has not only proved to be theoretically difficult but morally unacceptable.
Formation of new karyotypic combinations (Cytoraces) with different chromosome constitutions and decreased body size with better fitness is theoretically difficult, because it often requires simultaneous changes at multiple traits.
These traits were dubbed "magic traits" because they were once hypothesized to be rare and theoretically difficult to envisage occurring in nature, especially when speciation is non-allopatric [ 78].
More generally, we and others have noted that although color constancy is often referred to as a purely perceptual phenomenon, it is both practically and theoretically difficult to isolate the perceptual and memory contributions to matching surfaces between illuminants (Allen, Beilock, & Shevell, 2012; Allred & Flombaum, 2014; Jin & Shevell, 1996; Ling & Hurlbert, 2008; Olkkonen & Allred, 2014).
As noted by Fèvre et al. [ 2], T. b. rhodesiense is theoretically not difficult to prevent, but can be challenging to control once established.
For instance, the Federal Bureau of Investigation ignores smallpox as a major danger, possibly because the virus was eradicated from human populations decades ago and would be, theoretically at least, difficult to obtain.
Since the distribution of the random variables involved in the model are very difficult to be theoretically retrieved, classical statistical methods for parameters estimation, like maximum likelihood, could not be applied to this case.
However, the effectiveness of those clustering criterions including input wind speed, rotor slip and rotor current are difficult to be theoretically verified.
