The phrase "became decisive in" is correct and usable in written English.
It can be used to describe a point in time or event where something or someone played a critical role in determining the outcome of a situation. Example: The company's new marketing strategy became decisive in their success, leading to a significant increase in sales and revenue.
Ms. Kowroski brings those elements to "Monumentum pro Gesualdo" and "Movements for Piano and Orchestra" (Thursday), ballets in which she has become decisive in manner.
Then he lashed a triple as the first hitter in the third inning, scoring the run that would become decisive in a 3-2 victory.
But experts clash over when such factors become decisive in evaluating whether children can safely live in, or be returned to, such homes.
We concluded therefore that changes in depth of the perceptible space alter the relative importance of spatial and content-based properties for people's visual landscape perception, and thus the type of attributes that pass through the individual's perceptual and cognitive filters and become decisive in determining preferences.
Furthermore, while beneficial mutations are usually considered in disconnect from concurrent deleterious mutations at other sites, the latter also affect the chance of survival and even become decisive in proposed therapies employing 'lethal mutagenesis' (Anderson et al. 2004).
These quantities are quite sensitive to the form of the decay interaction and became decisive pieces of evidence in the search for the form of the decay interaction.
At the other extreme were the arrangements made in British Columbia, which became decisive when it entered the Canadian Confederation, to establish and maintain a free, unified, centralized nonsectarian system.
The art of maneuver became decisive, and analysis of war was couched accordingly in terms of strategies.
His lack of experience and his wont to be all things to all people could become decisive factors as he faces off in the second round against Mr. Fujimori, who has come back before and should not be underestimated.
In this genetically sensitized background, the 103 position that gets phosphorylated in the wild type protein becomes decisive for the function of the entire protein.
