Does uploading in VU-DARE endanger publication in scientific journals? No, if you set an embargo period the chapter will be published after this period has expired. You can choose a provisional embargo (from the date of graduation) and a final embargo (from the date of publication). If the publication date is not yet known, opt for a temporary embargo. If the publication date is known, choose a final embargo.
You retain the copyright to your dissertation; VU University only has a license to publish. Your embargo will always be respected.
Sometimes the DARE team propose to shorten an embargo if the publisher's policy allows. But the decision ultimately lies with the candidate.