Sentence examples for it was difficult to study from inspiring English sources

In that study, it was difficult to study the effect of temperature-dependent hydrogen gas treatment due to the degradation issue of FTO layer.

Therefore, it was difficult to study predictors of persistence of constipation.

In the past, it was difficult to study this problem because our lifetime is too short to observe the entire process of speciation.

Another limitation is that since CTX analyses were restricted to age 15 years, it was difficult to study interactions with puberty as assessed two years earlier.

Because of the limited availability of human angiosarcoma [ 21, 22] or canine HSA [ 23, 24] cell lines, it was difficult to study deregulated signaling pathways in these tumors.

Due to the peculiarity of the discrete system, it is difficult to study its stability and capture, and there are few related studies.

"It is difficult to study from others.

The great whales provide great problems: it is difficult to study them in the field.

It's difficult to study a master's at 69, because I often get exhausted.

"It's difficult to study LSD and psilocybin to see if they have medical use because they are schedule 1.

Maria, our designer, wants to practise permaculture design on our garden but it's difficult to study it until more of the building is done.