Sentence examples for difficult to test at present from inspiring English sources

It may be that some of the herbaceous plants preferred by the ankylosaurs disappeared, but this scenario is difficult to test at present.

It is largely driven by speculation and difficult to test empirically at present (Kitchin 2002; Pickrell and Oehme 2002).

Unfortunately, these hypotheses are difficult to test and, at the present time, must be considered mere conjecture.

At present it is difficult to test this possibility in mammalian genomic DNA: no 5-hydroxymethylated loci have been identified, and immunoprecipitation strategies to identify endogenous 5-hmC-containing loci in ES or Purkinje cell DNA have not yet been developed.

These methods are difficult to test the effects of various factors at different maturation stages since it is difficult to add or subtract components to/from the culture.

It is also difficult to test for the toxin.

So it's difficult to test the reduced-pleasure hypothesis.

How much such antagonism contributes to sex-bias in the avian brain is difficult to say at present.

This question is difficult to answer at present because of the variety of assays used to detect MOG-IgG.

The direct and indirect health effects due to these extreme events are important but are difficult to assess at present.

Other secondary structures, like triple helices for example, are difficult to predict bioinformatically at present.