"thereby turned" is correct and can be used in written English.
It is often used in formal or academic writing to indicate that one action directly resulted in another action. Example: The company implemented a new recycling program, thereby turning their commitment to sustainability into action.
With its maintenance machinery thereby turned on high, each worm cell lives far longer — and so does the worm.
By repackaging free-exercise claims as free-speech cases, Sekulow avoided having to address a countervailing constitutional principle and thereby turned losing arguments into winning cases.
The effect is dour, severe, but attention is thereby turned toward the singers and the music, which, after all, are the point.
At the start a framed card from 1961 certifies that the conceptualist Piero Manzoni, has signed the body of one Mario Diacono (a longtime Boston curator and a local hero) and thereby turned him into a work of art.
We thereby turned the physiological parameter of brain activity into an independent variable controlled and manipulated by the experimenter and investigated its effect on the performance of the cognitive tasks within a controlled experimental design.
Soil-inhabiting ectohydric mosses thereby turned out to be particularly suitable for the inventory of elements on different spatial scales [3 7] since they have rhizoids serving for anchorage but not for water and mineral uptake.
Does a White House decision to attack Iraq make it "a war," and thereby turn Mr. Hussein into a legitimate target?
Plus, the company uses waste methane as its feedstock, thereby turning a harmful greenhouse gas into a useful product.
It was this same story that Herman Melville used for his 1851 epic novel, thereby turning reality into literary legend.
Thus, it transformed the academic study of literature from a marginal scholarly apparatus of footnotes to the only game in town, thereby turning traditional readers into spectators.
Potentially convertible, all such outcasts might be thought to be using camouflaging techniques to infiltrate, hide out, assimilate, and thereby turn a treacherous trick.
