Everyone listed as an author should have made a substantial contribution to the conception, design, execution, or interpretation of the study; participated in drafting or critically revising the manuscript; approved the final version; and agreed to be accountable for the work.

People who contributed in other ways, such as technical support, data collection without further involvement, or language editing, should be named in the Acknowledgements.

Disputes over authorship are handled following COPE guidance. The journal does not rule on who deserves credit but may pause processing until the authors or their institutions resolve the matter.

A conflict of interest exists whenever a financial, professional, or personal relationship could influence, or appear to influence, how work is conducted, reported, or evaluated.

Authors declare conflicts in the Declaration of Competing Interest form submitted with the manuscript. If there are none, the form must explicitly state so.

Reviewers and editors must declare any conflict with a manuscript they are asked to handle.

Every research article submitted to JETS is first screened by the editors for scope, originality, and basic quality.

Manuscripts that pass screening are sent to at least two independent external reviewers from different countries under a double-blind review process.

The editor makes the final decision, taking reviewers' reports into account. Reviewers provide advice but do not make the final publication decision.

Authors respond to reviewer comments point by point using the JETS response-to-reviewers template.

All submissions are checked for similarity with Turnitin before review.

Manuscripts above the journal's similarity threshold are returned without review. For manuscripts below the threshold, editors examine what overlaps, where it occurs, and why.

JETS treats the following as plagiarism or research misconduct:

• Copying text, data, figures, or ideas without attribution.
• Reusing one's own published text or results without citation (self-plagiarism).
• Submitting the same work to more than one journal at the same time.
• Splitting one study into several papers to increase publication count.

A manuscript based on a thesis, dissertation, preprint, or conference presentation may be considered, provided that this is disclosed in the cover letter and the article substantially extends the earlier version.

Authors should describe methods, materials, software, and parameters in sufficient detail for others to repeat the work and should keep the underlying data available for a reasonable period after publication.

JETS encourages authors to deposit data and code in a recognised repository and to include a data availability statement in the article.

Authors should state the approval body and reference number in the Methods section. Fieldwork, industrial case studies, and data supplied by companies must respect confidentiality agreements and any permission needed for publication.

Authors who use generative AI tools to prepare a manuscript must disclose how and where the tools were used and remain fully accountable for the accuracy and originality of the content.

Reviewers and editors must not upload manuscripts under review to generative AI services because doing so breaches confidentiality.

JETS investigates any credible concern about possible misconduct in a submitted or published paper, whether it comes from a reviewer, reader, whistleblower, or anonymous source.

Concerns may include:

• Fabrication or falsification of data.
• Plagiarism.
• Image manipulation.
• Undisclosed conflicts of interest.
• Citation manipulation.
• Peer-review manipulation.

The editors first gather the facts and give the authors an opportunity to respond. Where needed, the journal contacts the authors' institution and asks it to investigate.

Outcomes may range from no action to a correction, expression of concern, rejection, or retraction. Whistleblowers' identities are protected as far as possible.

The published record should be accurate. Depending on the nature of the problem, JETS may issue one of the following:

Retracted articles remain online and are clearly marked as retracted.

Readers wishing to discuss or challenge a published article may write to the editors. Substantive comments may be published as a letter to the editor, with the original authors invited to reply.

Authors may appeal an editorial decision once by writing to the editorial office with a clear explanation of why they believe the decision was mistaken.

Appeals are assessed by an editor who was not involved in the original decision and may involve an additional reviewer. The decision on an appeal is final.

JETS aims to acknowledge complaints within 7 working days.

All JETS articles are freely available to read, download, and share immediately upon publication, with no subscription or registration required.

JETS charges an Article Processing Charge (APC) only after a manuscript has been accepted.

Every article receives a Crossref DOI so that it can be cited and located permanently.

Published content is preserved through a server managed by ITB so that articles remain available even if the journal website changes or ceases operation.

Back issues from 2003 onward, including those published under the journal's earlier titles, remain accessible online.

JETS publishes the names and affiliations of its full editorial board, contact details, fees, and publication policies on its website.

Submissions are handled through Open Journal Systems (OJS) over a secure HTTPS connection.

These policies are reviewed regularly by the editorial board and updated when COPE guidance or journal practice changes.