Our Technological Magazine ESPOL – RTE takes pleasure in presenting the last volume of the second semester of 2021, with the inclusion of two very enriching sections in the technical and social fields. A special section includes contributions to the publication of the ten best articles of the I International Research Congress, called I CIIEIS 2021 and is organized by RedIFIEIS. Our semi-annual open section for this issue includes an additional six articles on Multidisciplinary in Social Sciences and Engineering.