This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Articles are published under the term of a Creative Commons Attribution-ShareAlike (CC BY-SA) 4.0.

Benefits of open access for the author, include:

• Free access for all users worldwide
• Authors retain copyright to their work
• Increased visibility and readership
• Rapid publication
• No spatial constraints