Sentence examples for cases difficult to determine from inspiring English sources

While such catalysts can be fast and efficient, as Schmidbaur pointed out in a recent review, the nature and oxidation state of the catalyst is in most cases difficult to determine and remains a matter of conjecture.

Factors that may confound the association between climate change and DF incidence include improvements in surveillance that increase the ascertainment of DF cases, making it difficult to determine if increased cases are related to improved surveillance or increases in regional or global temperatures.

Yet for all its importance, it remains a tricky concept courts determine on an agonizing case-by-case basis making it difficult to determine whether the Next Big Thing on the Web is providing a valuable public service or violating copyright law on a wholesale basis.

In five of the cases a specific root cause was difficult to determine and categorise as each admission occurred in the setting of a high degree of complexity.

In some cases, it is difficult to determine for whom or for what purpose the insurance policy was made.

In most cases it was difficult to determine whether a charred body had been a male or female passenger, another police officer said.

Furthermore, in most cases, it is difficult to determine the brightening timing with the present method because the rising time of the late brightening is unknown.

In many cases, it was difficult to determine the partitioning operations used on any one particular problem because students only made one partitioning with no intermediate attempts or marks evident.

The complexity of his symptoms (or lack thereof in some cases) made it difficult to determine a specific diagnoses not uncommon when multiple illnesses present themselves in an individual rather abruptly.

The complexity of his symptoms (or lack thereof in some cases) made it difficult to determine a specific diagnosis not uncommon when multiple illnesses present themselves in an individual rather abruptly.

In some cases it is difficult to determine if an extended non-coding sequence corresponds to a long 3′ UTR or an independent lncRNA gene.