Sentence examples for and it is difficult to exert from inspiring English sources

There are however ethical issues about exposing participants to more naturalistic stressors and it is difficult to exert tight experimental control in these scenarios.

In fact, the FLAG-Cold protein was also seen in other subcellular compartments, and it is difficult to ascertain where it exerts its primary activity.

From this time Temple became one of the most violent and factious of politicians, and it is difficult to account for the influence that he exerted over his brother-in-law.

It is difficult to see why exerting unnecessary effort should confer moral worth.

It is difficult to see service users and carers being able to exert more control in a context of serious funding limitations.

It is difficult to postulate that such a treatment would exert its effects in the late phase of the disease, i.e. 3 to 5 months later.

Nevertheless, the results suggested that it is difficult to control maxillary sinus pneumatization by exerting implant occlusive load.

Without knowing how these compounds exert their antileishmanial activity, it is difficult to draw conclusions from this result.

However, it is difficult to predict and determine the effects of various mutations if several amino acids synergistically act as structural factors and exert multiple effects.

However, it is difficult to assess the specific role of CCL19 inhibition because SFA exerts pleiotropic effects both on chemokine expression and chemokine reponsiveness.

It is difficult to assess how the magnitude of our in vitro stimuli may relate to those exerted in vivo, and other factors involved in epithelial permeability may contribute more substantially to the determination of DTPA absorption rate in vivo.