The phrase "a serious shift in" is correct and usable in written English.
It can be used to describe a significant change or transition in a particular context, such as in opinions, policies, or trends.
Example: "The recent events have led to a serious shift in public perception regarding climate change."
Alternatives: "a significant change in" or "a major transformation in".
Prussian victories over Denmark (1864) and Austria (1866) indicated a serious shift in the European balance of power.
Later that day, Mr. Gorbachev told Mr. Bush in a phone call that he sensed a "serious shift" in Iraq's position, according to a transcript in the Bush Library.
KATHRYN B. McGRATH, now a partner with Crowell & Moring in Washington, is also convinced that the scandal is rooted in a serious shift in the industry's culture and must be repaired.
That is changing, at last, and the effect of the department of justice anti-trust action may ironically be to inspire a serious shift in how the big houses see the electronic marketplace.
The mayor said that he had tentatively supported the initiative, which would have been put before voters in November, as a "serious shift in the way we deal with affordable housing" but that proponents had failed to generate the kind of broad support necessary to gain approval.
But this announcement marks a serious shift in the makeup of Airbnb guests.
And this implies a serious shift not only in what the internet is used for, but also in what digital culture can be said to mean.
Rudra Chaudhuri, author of a recent book on how the two countries get on, sees "a serious shift" under Mr Modi in terms of a more active role for India abroad, beginning in its region.
If these reports are borne out, it would represent a very serious shift in the trajectory of the Syria conflict and call into question any Russian commitment to a peaceful settlement".
This led to rising violence and casualties in 2011 and 2012, and a serious shift back towards civil war in 2013, long before ISIS first attacked Falluja and Ramadi in late 2013.
(b) Battery Electric Vehicles (BEV) constitute the technology to be adopted in order to reduce the contribution of vehicles to climate change, but, for an effective application of BEV technology in the market, a serious shift to green energy generation may be needed.
