Acta Crystallographica and Journal of Synchrotron Radiation are defined as what?
Acta Crystallographica Acta Crystallographica is a series of peer-reviewed scientific journals, with articles centred on crystallography, published by the International Union of Crystallography (IUCr). Originally established in 1948 as a single journal called "Acta Crystallographica", there are now six independent "Acta Crystallographica" titles: "", "", "", "", "" and "". "Acta Crystallographica" has been noted for the high quality of the papers that it produces, as well as the large impact that its papers have had on the field of crystallography. The current six journals form part of the journal portfolio of the IUCr, which is completed by the "Journal of Applied Crystallography", the "Journal of Synchrotron Radiation", the open-access "IUCrJ" and the open-access data publication "IUCr Data".
Nucleic Acids Research Nucleic Acids Research is an open-access peer-reviewed scientific journal published by Oxford University Press. It covers research on nucleic acids, such as DNA and RNA, and related work. According to the "Journal Citation Reports", the journal's 2016 impact factor is 10.162. The journal publishes two yearly special issues, one dedicated to biological databases, published in January since 1993, and the other on biological web servers, published in July since 2003.