Abstracts of research articles are published in two categories:

Not yet peer-reviewed and placed here for information only. These abstracts should not be quoted or discussed until the accepted unproofed versions of the articles to which they relate are placed on the web. Abstracts of papers not accepted will be removed.

Peer-reviewed and accepted for publication after referees' criticisms have been addressed by the authors and before full proofing. When printed in the journal, all Abstracts are removed from web.