<p>In terms of scientific publications, the American Chemical Society has a statement on ethics in publication that prohibits multiple submissions or re-submissions of a paper accepted in its journals or elsewhere, and also prohibits plagiarism, including what they call “self-plagiarism,” i.e, duplicate publication.</p>
<p>See
pubs.acs.org/userimages/ContentEditor/1218054468605/ethics.pdf
and particularly items B8 and B13.
The words used to describe repeat publication are “improper,” “not acceptable,” and “should not.”</p>
<p>It’s pretty clear where the chemists stand. The physicists have a similar viewpoint, and in fact run submissions through the professional equivalent of turnitin. The life sciences may operate differently.</p>