Submission of a manuscript implies that the work described has not been published before (except in the form of an abstract or as part of a published lecture, review, or thesis); that it is not under consideration for publication elsewhere; that its publication has been approved by all coauthors, if any, as well.
The authors are exclusively responsible for the contents of their submissions, the validity of the experimental results and must make sure that they have permission from all involved parties to make the data public.
Plagiarism, where someone assumes another's ideas, words, or other creative expression as one's own, is a clear violation of scientific ethics. Plagiarism may also involve a violation of copyright law, punishable by legal action. Plagiarism may constitue the following:
Self-plagiarism, as a related issue, is the word for word or almost word for word reproduction of portions of one's own copyrighted work without proper citation of the original material. Any text, idea, paraphrase from any public source (Internet, published papers, printed or eBooks etc.) which is already available to the readers must be cited, irrespective of the authors. It is not allowed to repeat the same arguments and ideas, even when they have first been published in little known publications with limited circulation in other fields. The exception to this is if the paper features a “Related Work” section.
It is unnacceptable that research results from other papers be presented as though they were original work from the present paper. Any text that needs to be reprodused “as is” should be quoted, and proper references provided. Quoting of such text should be done very sparingly. It is not acceptable to reproduce large quantities of text from other sources (multiple phrases, a larger pagragraph, an entire section). The quoted text should be no longer than 8 rows, on A4 format, TNR12 or Arial 11.