The phrase "a study over" is not correct and does not convey a clear meaning in written English.
It is not typically used in academic or formal contexts, and the intended meaning may be unclear without additional context.
Example: "The researchers conducted a study over the effects of climate change on local wildlife."
Alternatives: "a study on" or "a study regarding".
In previews at the MCC Theater in Chelsea, "Yard Gal" is a study over time of two feisty, quick-witted girl gang members.
Further, a study over several years in Japan showed that immunizing children against the flu protected older people because children were the primary vectors of the disease.
The Pew Research Center published a study over the weekend that showed that the number of cellphone owners who text on their phones has grown to 80 percent from 58 percent in 2007.
Earlier this year, a study over 12 years of 92,000 women who were postmenopausal found that those who spent most time sitting (11 hours or more a day) had a 12% increase in dying from any condition, a 27% increase in deaths from heart disease and a 21% rise in dying from cancer compared with those who sat for four or less hours.
In an October 2005 paper published in Journal of Community Health, a team of researchers conducting a study over seven years in 11 metropolitan areas determined that pet abuse was one of five factors that predicted who would begin other abusive behaviors.
A study over UK technology-based SMEs identified that these firms are quite different from policy makers' perceptions (Brown and Mason 2014).
This link suggesting that auxin is a negative regulator of ripening was further enforced by a study over-expressing a pepper GH3-related gene in tomato [ 60].
Problems arise if a study over-samples a particular group; for instance over-sampling the male population in their twenties who are most likely to be involved in the fighting as either a member of a militia or as a victim relating to their potential for future militia roles will result in biased mortality rates [ 18, 26].
A study of over 60s by the University of California, San Francisco found 43% of those surveyed felt lonely on a regular basis.
In a study of over 200,000 users, Xmarks found that SearchBoost increased pay-per-click performance by 15%.
Researchers examined data from a study of over 30,000 people aged 45 and up.
