Plagiarism, Text Recycling, and Duplicate Submission Policy
Submission declaration and verification
After manuscript submission to TUJNAS for the first time, the corresponding author undertakes, within a signed declaration by them writing to bear the legal and moral responsibility if plagiarism, duplicate submission, or any of the content is taken from other authors' works without any reference to them.
Screening
TUJNAS screens submitted manuscripts for originality and may repeat screening after substantial revision or before publication. Screening supports editorial judgment; a similarity percentage alone does not establish plagiarism or determine an outcome.
Contextual assessment
The responsible editor examines the matched sources and considers quotation, citation, common technical language, reference lists, methods that legitimately resemble standard procedures, preprints, theses, conference versions, translated text, and the authors’ own earlier work. Uncited appropriation, misleading reuse, redundant publication and duplicate submission are assessed separately.
Procedure
When a material concern is identified, the author is informed of the relevant evidence and invited to respond. The editor may request correction, clarification, source files or documentation; reject the manuscript; refer a serious concern to an institution; or proceed under the Publication Ethics and Research Integrity Policy. Revised manuscripts may be rescreened.
After publication
Post-publication concerns are assessed using the same evidence-based process and may result in correction, expression of concern, retraction or no action. Notices must be linked to the Version of Record.
Thresholds
The journal does not publish a universally acceptable similarity threshold because the meaning of a match depends on its source, extent and context.