Lessons learned from studies of psychotherapy for posttraumatic stress disorder via video teleconferencing

This article summarizes two ongoing randomized controlled trials that compare individual in-person psychotherapy with psychotherapy provided using video teleconferencing for military veterans with posttraumatic stress disorder. We describe training methods, populations, technology, challenges, successes, and lessons learned so far during the trials.     

On the relevant systemsP andP * and some related systems

In this paper we study the systemsP andP ^* (see Arruda and da Costa,O paradoxo de Curry-Moh Shaw-Kwei, Boletim da Sociedade Matemtica de São Paulo 18 (1966)) and some related systems. In the last section, we prove that certain set theories havingP andP ^* as their underlying logics are non-trivial.