The phrase "actively preventing" is correct and usable in written English.
It can be used when discussing efforts or measures taken to stop something from happening or to hinder a particular outcome.
Example: "The organization is actively preventing the spread of misinformation through educational campaigns."
Alternatives: "proactively stopping" or "diligently hindering".
We found that both Wnt3a and BMP4 reduced the number of cells co-labelled with Olig2 in the nucleus, indicating that both factors were actively preventing the nuclear activity and differentiating capabilities of Olig2, possibly via ID2 induction.
Some are even actively preventing new parking spaces from being built.
Where more can be done is in cementing those relationships and actively preventing isolation.
At the same time, Cameron's government is actively preventing young adults from returning to the family home.
We need to talk more about design as "immunisation," actively preventing certain potential "innovations" that we do not want from happening.
But it's not surprising to anyone who studies Burma that the military regime is actively preventing aid workers from entering the country.
"Our work in this area has identified a natural brake – a protein called SIK1 – that is activated by light and actively prevents the clock shifting.
Prevention of a defined motion at the site of the regional link was rated as a pass (able to demonstrate good active control) or fail (unable to actively prevent uncontrolled movement).
As I pointed out some 20 years ago, the problem is not that condom-based prevention work has failed but that prevention work itself has so often been actively prevented, not least in the United States.
The necessity to actively prevent the most posterior genes from premature activation is supported by their basal transcriptional activity in ES cells, where Hox clusters are less discrete than in subsequent negative tissues such as fetal brain cells.
Successive Australian governments have actively prevented journalists from getting access to detention centres, here or offshore.
