Sentence examples for this remains difficult from inspiring English sources

However, this remains difficult, because there is still much uncertainty in the available data and assumptions.

Whilst high density cultures can be achieved with cells in suspension, this remains difficult with adherent cells, resulting in low quantity of exosomes for subsequent study.

The results revealed that after the age of 30 months children begin to correctly interpret nouns while simultaneously taking into account their partner's knowledge (50% of the French and 29% of the Japanese children were successful), whereas this remains difficult for younger children (no child under 30 months was successful).

In view of the fact that the knowledge about the regulation of the cell cycle and apoptosis in mammalian meiosis is still rather limited [44] [46], this remains difficult to interpret.

Careful assessment of architectural and especially cytologic features should assist in distinction, but at times this remains difficult, subjective, and prone to interobserver variability.

This idea remains difficult for people outside the country to grasp.

Early diagnosis of this entity remains difficult, neither diuresis and creatinine are early parameters in the diagnosis of ARF.

However, the fracture classification system adopted in these analyses has varied from study to study, and thus the prognosis of patients with this injury remains difficult to predict.

Until the mechanism(s) maintaining genomic stability in the archaea are elucidated, this hypothesis remains difficult to test.

Although OCT receives increasing attention as future tool for the detection and monitoring of neurodegenerative processes in MS the evaluation of the actual value of this technique remains difficult.

Its role in terms of cell death mediation in sarcoma cells has not yet been examined, therefore interpretation of this finding remains difficult.