We are currently not accepting submissions that do not respond to a specific call for papers. This is because we are in the process of transforming the publishing process for the journal.
If you are repsonding to a specific call for papers then we recommend that you review the About the Journal page for the journal's section policies, as well as the Author Guidelines. Authors need to register with the journal prior to submitting, or if already registered can simply log in and begin the 5 step process.
In case you encounter any difficulties with the registration or with submitting your paper, here are two video tutorials that explain each step in detail: