Plagiarism Chek

Timor-Leste Journal of Engineering and Science requires that all research be submitted to one of the journals or books are original and the author agrees to these terms when completing and signing a record form. TLJES recognizes that plagiarism is not acceptable for all authors and therefore establishes the following policy stating specific actions (penalties) when plagiarism is identified by TLJES anti-plagiarism software detection using iThenticate software ( and Turnitin software ( in an article that is submitted for publication Please refer to the TLJES originality guidelines ( and the Committee on Publication Ethics flowcharts for the processes that TLJES follows in cases of alleged plagiarism in submitted or published articles. Please also refer to our guidelines on re-using copyrighted materials within your paper at

  1. Repeated research and findings which are fully acknowledged and fall below 25% of the original paper are acceptable. It is important to check that the scope of the paper and the conclusions do differ from the previous research. If the repetition has not been sufficiently highlighted, then a note of clarification may be required.
  2. If more than 25% of the paper has been copied without acknowledgement of the previous research and without the inclusion of new data or different conclusions, a corrigendum or retraction is required depending on the severity of the case.
  3. If the paper is a verbatim copy of a previously published paper, a retraction notice is required.
  4. If the same paper has been published in a different publication as a result of multiple submission, a retraction notice is required.

When plagiarism is identified by the Plagiarism Checker (using IThenticate and Turnitin software),  the Editorial Board is responsible for the review of this paper and will agree on measures according to the extent of plagiarism detected in the article in agreement with the following guidelines:

Minor Plagiarism

A small sentence or short paragraph of another manuscript is plagiarized without any significant data or ideas taken from the other papers or publications.

Intermediate Plagiarism

A significant data, paragraph, or sentence of an article is plagiarized without proper citation to the original source.

Severe Plagiarism

A large portion of an article is plagiarized that involves many aspects such as reproducing original results (data, formulation, equation, law, statement, etc.), ideas, and methods presented in other publications.


The paper is automatically rejected and the authors are forbidden to submit further articles to the journal.