Sentence examples for the difficulty to establish from inspiring English sources

Finally, this work stresses factors that can explain the difficulty to establish robust predictive relationships with remote sensing data.

However any experimental studies have not been curried out previously, and this was partly due to the difficulty to establish unicellular cultures and determine the photosynthetic properties for the chrysophytes snow algae.

This highlighted the difficulty to establish a regular nephrology care in very elderly.

The reason for this might be the difficulty to establish optimal conditions for inducing protein expression in phosphate-limited cultures.

This is mainly due to the difficulty to establish a quick collaboration with zebrafish lab working on SCRIB.

Mixed viral infections were not analyzed due to the small sample size and the difficulty to establish clinical relevance.

However, the difficulties to establish porcine pluripotent stem cells including embryonic stem cells and integration-free iPSCs limit the production of porcine NPCs through traditional cell differentiation approaches (Wu et al., 2009; Rasmussen et al., 2011; Liu et al., 2012c; Fan et al., 2013).

In rodents, despite the large fossil record, the lack of postcranial identifiable bones and the difficulties to establish relationship between cranial and postcranial remains in multi-species deposits, frequently limit the weight estimates to those derived from the teeth and other cranial parameters, while they constrain the approach to other body parameters.

However, the ribosomal cistron is often omitted because of difficulty to establish the exact copy number and the positions of the multiple copies in the genome.

The conceptual fluctuations of the word trauma in Freudian works suggest that the relative difficulties to establish this definition are much older than the conceptual confusion observed in PTSD.

The complex service processes with no agreed uniform guidelines, clear roles and consistent outcome evaluation may bring more difficulties to establish the referral and communication networks; in turn, a lack of the referral and communication networks or a lack of uniform guidelines, clear roles and consistent outcome evaluation systems also may lead to more complicated service processes.