Conclusions: Transcervical irrigation correctly identified the sex of 76% of male fetuses, but it still has considerable operator variability.
However, such diagnoses can only be made if considerable operator skill is associated with knowledge and experience.
Although transabdominal sonography is widely used to assess the liver, it has some limitations: it needs considerable operator expertise and often reveals equivocal results in patients with (chemotherapy-induced) fatty infiltration of the liver.
In the last years, the interest to application of the fractional derivative operators a considerable growth.
The calculation of such quantities requires manual positioning of regions of interest (ROIs) on the SPECT image by a highly experienced operator, which makes the procedure time-consuming and hampered by a considerable intra- and inter-operator variability [17, 18].
This outbreak caused a considerable economic loss for the operator, and the occurrence of infection among a large number of birds posed a major occupational hazard to the farm workers.
The main advantage of this coordinate system is that it leads to a considerable simplification of the kinetic energy operator.
Recently there has been a considerable interest on various product-type operators (see, e.g. [1 19]), and among them on products of composition and differentiation operators (see, e.g. [1, 2, 4, 5, 7 12, 15 19]).
When Analyst 2 was compared against the other operators, there was a considerable increase in the tolerance intervals recorded (approximately 2-fold) and the introduction of a strong positive bias.
If the arithmetic operator does not take a considerable amount of resources or is time non efficient it negatively impacts the performance of the whole cryptosystem.
