Sentence examples for difficult to be established from inspiring English sources

The limited role of solvent molecules in the hydrogen-bond stabilization of solutes can be related with the fact that a strong hydrogen bond is more difficult to be established in solution than in the gas phase due to the role of rupturing or weakening the hydrogen bonds played by water molecules [42, 43].

The mechanisms involved in bilirubin neurotoxicity to the developing nervous system are still poorly understood, and protein changes related to functional deficits are difficult to be established.

The model of the whole system is difficult to be completely established before the diagnosis analysis.

Equally difficult to establish is the balance of net resource flows between services.

With art, it's difficult to establish what is good and bad, what's provocative and what isn't.

It is difficult to establish what is a fair comparator to use in a trial with a new device.

Hepatocellular ballooning has been difficult to establish but was shown recently in the FFD mouse by Charlton et al. [ 20].

In cases in which differential diagnosis is difficult to establish, histopathological examination establishes the final diagnosis.

For example, in health it is often difficult to establish who is responsible for the outcome.

Exact figures are difficult to establish, but there is anecdotal evidence of these positive instances.

The authenticity of such letters is difficult to establish, and might anyway be an attempt to spread fear and confusion.