The phrase "a study has determined that" is correct and commonly used in written English.
It is typically used when discussing the findings or results of a research study or report. Example: A recent study has determined that students who eat a healthy breakfast are more likely to perform better in school than those who skip breakfast.
Whatever the reason, a new study has determined that only a quarter of patients with heart disease are regularly taking aspirin, even though experts agree that it helps prevent new heart attacks and other problems.
A recent study has determined that Th17 represent only a minor fraction of IL-17 expressing cells in different human tumors and that IL-17 was mainly produced by neutrophils or mast cells [ 84].
A previous study has determined that the time course of ICa recovery from inactivation follows a single exponential function with a τrecovery of about 375 ms (Blaich et al., 2010).
However, a previous study has determined that inhibition of EADs and VT by nifedipine in the rabbit heart significantly preceded any discernable decreases in left ventricular developed pressure (LVDP) (Anderson et al. 1998).
A recent study has determined that the Dalpha7 subunit of the nicotinic acetylcholine receptor (nAChR) is needed for transmission from the PSI to the DLMns and inputs to the GFs (Fayyazuddin et al., 2006).
More recently, a large epidemiological study has determined that hypoglycemia results in an increased risk of cardiovascular disease and all-cause mortality (3).
A recent epidemiological study has determined that consumption of non-steroidal anti-inflammatory drugs (NSAIDs) is a risk factor for the development of irritable bowel syndrome [41].
A recent in vivo study has determined that Erk1/2 activity is required for brimonidine-mediated axonal regeneration after optic nerve injury [ 28].
The study has determined that a proper energy integration design could lead to important economic savings (5 €/t) and thermal hydrolysis can enhance up to 40% the incomes of the digestion plant, even doubling them when digestate management costs are considered.
Our present study has determined that, on a population basis, MSAFP levels are significantly higher in cases of fetal hydrocephalus than in the general population of screened pregnancies.
