They should not provide new results, but may provide synthesis of new conclusions by combining results from several of the papers.
They may supplement the articles with a motivation of the chosen scope, research problems, objectives and methods, and a strengthening of the theoretical framework, analysis and conclusions, since the extent of the articles normally does not allow this kind of longer discussions.
For help, please use the Copyright Information Office for more information on publishers' policies and article embargoes.
Although a thesis might be placed under embargo, a candidate is still obliged to submit his/her disseration.
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By decision of the Doctorate Board every Ph D candidate at Leiden University is obliged to deliver four copies of his/her dissertation to the library.It is possible to request an embargo of 6, 12, 18, or 24 months in those cases where previous arrangements with the publisher make this obligatory. In exceptional cases, to be decided by the Doctorate Board, a longer period can be set.Doctoral candidates are required to check for themselves if and for how long the embargoes need to be set.Today, article theses are the standard format in natural, medical, and engineering sciences (for example in the Nordic countries), while in social and cultural sciences, there is a strong but decreasing tradition to produce coherent monographs i.e. Other times, doctoral students may have a choice between writing a monograph or a compilation thesis.The thesis by published works format is chosen in cases where the student intends to first publish the thesis in parts in international journals.In addition, there can be an abstract in any other language.At the end of the dissertation there can be a larger summary in any language (e.g.They should include an extensive annotated bibliography or literature review, placing the scope and results of the articles in the wider context of current state of the international research.They constitute a comprehensive summary of the appended papers, and should clarify the contribution of the doctoral student if the papers are written by several authors.Summary / Zuzammenfassung / Sammanfattning / Suomenkielinen lyhennelmä). is a doctoral dissertation that, as opposed to a coherent monograph, is a collection of research papers with an introductory section consisting of summary chapters.