Information Bulletin of Protected Dissertations . Issue. No. 18”, created by the team of authors, is an important and relevant source of information for anyone interested in scientific research and the academic environment . This issue of the newsletter is not just a collection of dissertations, but a real encyclopedia of knowledge covering a wide range of topics and disciplines. It will be of interest to both students and teachers, as well as to anyone who seeks to expand their knowledge in the field of science and education .. In this issue, readers will find many protected dissertations, each of which represents a unique contribution to their field. Topics range from social sciences and humanities studies to the exact and natural sciences, making the newsletter a versatile tool for researchers and practitioners. Each work is accompanied by an annotation, which allows you to quickly evaluate it