The phrase "a substantial focus in" is correct and usable in written English.
It can be used when discussing the main emphasis or concentration of a particular subject or area of study.
Example: "The research paper has a substantial focus in the field of renewable energy technologies."
Alternatives: "a significant emphasis on" or "a major concentration in".
At least 1 course in the law school's clinical program (in-house or East Bay Community Law Center) with a substantial focus on race and racial inequality in the United States or completion of a field placement with a substantial focus on race and racial inequality in the United States.
In the last twenty or more years, there has been a substantial focus on terrorism-related policies in many jurisdictions, particularly since the attacks of 11 September 2001 in the United States.
As we have already made clear, mental health remains a substantial focus for our investigation".
The Metropolitan police commissioner, Sir Bernard Hogan-Howe, said: "Mental health remains a substantial focus for our investigation".
This fact, in and of itself, provides evidence for the substantial focus that must take place in hospital on discharge planning for those at the end of life.
Human communication is naturally multimodal, and substantial focus has examined the semantic correspondences in speech gesture and text image relationships.
In addition, a substantial change in the focus of early childhood policy has accompanied the change of government.
Representing businessmen and political officials in hot water was once considered déclassé, but today every large corporate law firm has a substantial practice focused on the lucrative work.
We find a substantial variation in both the focus and scope of clawback design.
Voting for military action in Iraq provided a cause and focus for a substantial increase in worldwide terrorism and has since led to almost 500,000 civilian deaths in Iraq; the vote in 2013 for no military action in Syria increased the civilian deaths there and gave Assad the confidence to continue using chemical weapons.
