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Discover LudwigThe phrase "the foci of" is correct and usable in written English.
It is typically used in mathematical or scientific contexts, particularly when discussing the focal points of conic sections or other geometric figures.
Example: "In an ellipse, the foci of the shape determine its eccentricity and overall geometry."
Alternatives: "the focal points of" or "the centers of attention in".
Exact(60)
The foci of that visit were Lerner and Loewe, not Burton, so I had come to know him casually and not in a formal way.
It seems likely that, as we hear more about the design of the competition, the foci of the scheme will be narrowed and, I hope, that some ongoing means of aiding potential competitors will be brought in.
The foci of the spheroid coincide with foci of the spheroidal coordinate system.
Marine biotechnology is one of the foci of attention in this design group.
The model places the transmitter and receiver at the foci of an ellipse.
Table 1 also summarises the foci of the papers in a broad sense.
These situations will be the foci of the most intense selection.
Career development, scholarly productivity, and professional leadership were the foci of this outcomes study.
The transmitting and receiving nodes are located at the foci of the ellipse (see Figure3).
The foci of Kosow's [10] paper are two basic scientific quality criteria of scenarios: consistency and traceability.
The irregular-shaped tubular structures were the foci of the adenocarcinoma and were focally intermingled with the sarcomatous atypical cells.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com