Sentence examples for sometimes difficult to determine from inspiring English sources

The temporal relation between CD4 count determinations and concurrent illnesses was sometimes difficult to determine due to the retrospective nature of the study.

It is sometimes difficult to determine what constitutes the stuff of legend, or when a man enters that mythic dimension.

It is sometimes difficult to determine whether the metal atoms are indeed directly linked or merely held quite close together by a framework of bridging ligands.

Of course, it is sometimes difficult to determine when to pull the plug on a company, said a former senior executive of the online retailer Boo.com, which shut operations in May, and recently re-opened under new ownership.

Another subject the panel discussed was the various skills required to produce ads and how it was sometimes difficult to determine which staff members were needed for an assignment.

But in a review of the first 25 cases, it was sometimes difficult to determine how the information from the street stops had been crucial in solving the crimes or how their placement in a database was a factor.

They're sometimes difficult to find.

Tongue carcinomas are sometimes difficult to see on CT.

— It can sometimes be difficult to determine just who is coaching the Penn State women's volleyball team to this seemingly endless string of victories.

At the molecular level, it is becoming increasingly recognized that the same protein can carry out more than one function, though it can sometimes be difficult to determine which, if either, was the sole original function.

However, it can sometimes be difficult to determine co-regulation between two adjacent genes in the same operon or between two adjacent operons.