In this issue, you will find 3 articles on general problems concerning higher education and research. The first one deals with open-access journals that revolutionize the distribution of research through their new economic model but which leave many questions about quality control. Next, we will address a crucial problem related to the financial difficulties of European universities in a world where it is necessary to save money and not lose companies in competitiveness.
Finally, the third is a small reflection on the value of π.

Wishing good reading.