After an excellent reception of the first issue, here is the second issue of the internationally reviewed scientific journal “ST-OPEN” published by the University of Split. ST-OPEN is an overlay+ journal open to students and teachers from the University of Split, as well as from other universities in Croatia and globally. The journal is published in a diamond open access form as an e-journal to provide our readers with easy and cheap access. In this issue, we provide eleven research articles. The scientific areas of chemical engineering, medical engineering, environmental engineering, philosophy, ethics, religion, art, media and communications are presented. The authors presenting their articles in this issue come from Croatia and abroad.