Educação & Formação, v. 5, n.14, mai./abr. 2020

A formação crítica do sujeito na educação a distância

According to a criticai approach, the contemporary world, crossed by the new technologies of communication and information, has sustained and built alienation. An emancipation project could be the criticai formation of the subject, the individual capable of criticai thinking and acting in the world to change it. This study aims to indicate a way to critically educate the subject through distanc...

Cover 17-5 October 2020

Persian-translation 17-5 October 2020

Special Articles on 5 G Technologies toward 2020 Deployment

NTT DOCOMO is researching and developing the fifth-generation mobile communications system (5G) toward the provision of super-high-speed, super-high-capacity wireless communications services. In 5G, the aim is to widen the bandwidth of transmission signals by using frequency bands higher than those of existing frequency bands. However, as radio propagation loss increases in high frequency bands...

Special Articles on 5 G Technologies toward 2020 Deployment

NTT DOCOMO is currently studying a fifth-generation mobile communications system (5G) intensely. This system is expected to use high frequency bands, so clarification of the propagation characteristics in these high frequency bands is the most important issue in radio propagation research for 5G. This article gives an overview of the issues and current state of study in radio propagation, and d...