Sentence examples for proved difficult for this from inspiring English sources
In order to validate the RACE results a cDNA blot [ 62] was selected as standard Northern blot with non-radioactive labelling proved difficult for this transcript.
I conducted a test in which I pulled the bag behind me, then stopped, turned around, and pushed it backward; this proved difficult for the bag, since the wheels were forced to reorient themselves, creating a momentary lockup.
This has proved difficult for the state's chief minister, Bansi Lal, who was elected last year after promising to provide uninterrupted electricity supplies to farmers.
The latest turn in the case proved difficult for the family of the psychologist, Kathryn Faughey.
It has proved difficult for the voters to exert their influence.
Acting decisively has proved difficult for the government of Naoto Kan, the prime minister.
But these matrix structures have often proved difficult for the managers working within them.
Obtaining access to interview subjects proved difficult for the filmmakers.
A diagnosis proved difficult for the therapists I consulted with, who said I didn't have PTSD.
Questions about stigmatised conditions such as HIV proved difficult for the data collectors.
Both the spleen and the placenta were the most difficult tissues to perfuse, as their open circulation proved difficult for the complete removal of blood.
