OPEN ACCESS STATEMENT
JST&M is an open-access publication, and all papers are available on the internet to all users immediately upon publication. All content is freely available without charge to the user or their institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author as long as they cite the source.