We post here Preprints and manuscripts currently under the Open Peer Review (OPR), and the accessible w/o logging Low-Resolution PDFs of the most current/upcoming MCFNS Issues.  The MCFNS OPR Preprints are manuscripts that in principle have been accepted for publication in the MCFNS journal, but while awaiting for publication are exposed to a pre-publication open public peer review to provide them with extra opportunity of improvement and scrutiny.