Instinct and Nexus, are which form of publication?
Instinct (magazine) Instinct (ISSN 1096-0058  ) is a gay men's lifestyle magazine which was published from 1997 to 2015. The magazine was first published in 1997 by Instinct Publishing and was distributed by Curtis Circulation. The final issue was dated June–July 2015.
ScienceDirect ScienceDirect is a website which provides subscription-based access to a large database of scientific and medical research. It hosts over 12 million pieces of content from 3,500 academic journals and 34,000 e-books. The journals are grouped into four main sections: "Physical Sciences and Engineering", "Life Sciences", "Health Sciences", and "Social Sciences and Humanities". Article abstracts are freely available, but access to their full texts (in PDF and, for newer publications, also HTML) generally require a subscription or pay-per-view purchase.