JCEP expects that all submitted articles are original, unpublished work that are not currently under consideration for publication elsewhere. Submitting the same or nearly identical work to multiple journals simultaneously is considered unethical and unacceptable behavior.
However, certain types of prior public presentation are usually permissible and do not disqualify a manuscript for submission, provided that the author is transparent and discloses the prior presentation at the time of submission.
Previous publication is permitted: The following forms of prior publication are generally acceptable, provided that transparency and proper citation are maintained:
1. Before printing: Submission of a manuscript to a preprint server, prior to or at the same time as submission to JCEP is generally permitted and is not considered prior publication. If the article is accepted, the author must update the preprint record with a publication reference, DOI, and a link to the published version.
2. Theses/Academic Dissertations: Theses/Academic Dissertations: Works that have previously been part of a doctoral dissertation or other academic thesis are acceptable for submission. If the thesis is placed in a publicly accessible academic repository, the author must declare this at the time of submission. The journal does not expect the thesis to be subject to censorship until the articles derived from it have been published.
3. Conference Papers and Abstracts: Presenting an abstract or poster at a conference will generally not affect a paper's eligibility for publication. Similarly, publishing a working paper or a conference paper is usually permissible, provided that the author has not assigned copyright or signed an exclusive publication license with the conference organizers/publisher. If a published conference paper is submitted, the author is expected to have substantially developed the work significantly before submission to the journal.
Transparency Requirements
Authors should disclose details of related works that they have previously published or that are in ptint or under review, through clear citation and referencing at the time of submission. This disclosure ensures that the full history of the work is documented and avoids issues of duplicate publication (publishing essentially the same research more than once) or self-plagiarism (reusing your own text without proper citation), both of which are considered unethical.
The journal may use similarity checking tools, such as Hamananjoo (https://tik.irandoc.ac.ir) and Samim-e Noor, to verify compliance with these policies and ensure the the originality of the work.