Sentence examples for been difficult to investigate from inspiring English sources

However, the role of ATP binding and hydrolysis in each subunit of the Hsp90 dimer has been difficult to investigate because of an inability to assemble and study dimers of defined composition.

Objective Since most chondrocytes in articular cartilage are in the resting phase (G0) of the cell cycle, it has been difficult to investigate their cell kinetics using 3H-thymidine autoradiography, or immunohistochemistry.

Leak cases have long been difficult to investigate and prosecute, though that task has become easier in recent years as a result of communications technology, like e-mail, that can show which officials, among hundreds who might have had access to certain information, were in contact with a reporter.

The mechanisms underlying structural changes that accompany learning and memory have been difficult to investigate in the intact nervous system.

Historically, blastomycosis ecology has been difficult to investigate for several reasons.

Despite the evident heterogeneity, the phenotypical characteristics of these subpopulations were hard to elucidate because their behavior in vitro has been difficult to investigate.

These cases are difficult to investigate from London, Washington or Ottawa.

Its complicated multiphase flow structure is difficult to investigate experimentally.

He added that it was difficult to investigate without knowing from TSI which airline desks had the problem.

Future X-ray images will enable scientists to examine regions of the Venusian atmosphere that are difficult to investigate otherwise.

This coevolution is difficult to investigate because landscape age and initial conditions are often poorly constrained.