The phrase "a study proposed that" is correct and usable in written English.
It can be used when introducing findings or suggestions made by a research study.
Example: "A study proposed that regular exercise can significantly improve mental health outcomes."
Alternatives: "research suggested that" or "a study indicated that".
Now a study proposes that existing theories of how nitrogen cycles in and out of forests may share a central flaw: By focusing on forests in the Northern Hemisphere, scientists mistakenly came to consider inorganic nitrogen especially critical to forest ecosystems, when in fact it's a byproduct of industrial pollution.
Intriguingly, a recent study proposed that cellular reprogramming is a deterministic process, as nearly 100% reprogramming efficiency was achieved when using Mbd3 knockout cells as the initiating somatic cells.
A previous study proposed that comparing the number of reads for a gene between different libraries or different genes in the same library could be a reliable indicator of relative gene expression [ 29].
A recent study proposed that MK deficiency suppresses the development of an RA model by preventing inflammatory leukocyte migration and osteoclast differentiation (Maruyama et al. 2004).
A recent study proposed that striatal dopamine circuits, particularly the caudate, may provide a mechanism for the active suppression of the DMN under conditions that require increased processing of external stimuli relative to internal, self-directed processing [37].
Indeed, a recent study proposed that in plant cells the TGN doubles as an early endosomal compartment, and the same may be true for animal cells [ 18].
A different study proposed that in the absence of Tyr75, His83 likely acts as a heme iron ligand, but direct experimental support for this notion is lacking.
Linking the genetic and stem cell models of cancer, a recent study proposed that the accumulation of mutations through stem cell divisions is a major determinant of lifetime cancer risk (Tomasetti and Vogelstein, 2015).
A third study proposed that, cell for cell, there did not appear to be a consistent intrinsic defect of RA synovial Treg suppressor function, but rather synovial effector T cells might acquire resistance to regulation by Tregs [ 71].
Second, a prior study proposed that no one-to-one correspondence occurs between any frequency component of brain activity and pain [77].
