All articles ← Knowledge Base Does the Nature Index include all articles from the selected journals? Are all articles treated equally? How have articles been selected for inclusion in the Nature Index? How is article output counted? How many articles are in the Nature Index? How were the institutions in your database chosen? How will the Nature Index be made available? How will the Nature Index be of value to the researcher community? What are collaborating institutions? What are regions? What data is held in the Nature Index? What does article count (AC) mean? What does fractional count (FC) mean? What does weighted fractional count (WFC) mean? What is a consortia? What is a DOI? What is a funding institution? What is a principal institution? What is an affiliated institution? What is an affiliated joint institution? What is the Nature Index? What journals are included in the Nature Index? What journals are included in the subjects? Why is the Nature Index based on articles from 68 journals?