Augusto Roa Bastos 1917-2005

Dario Augusto Oliveira Miranda

Aim: To review the literature on the prevalence and incidence of peri-implantitis. Methods: Out of 322 potentially relevant publications we identified 29 articles concerning 23 studies, with information on the presence of signs of peri-implantitis in populations of at least 20 cases. Results and Conclusions: All studies provided data from convenience samples, typically from patients who were tr...

Ricardo Andrés Roa - Castellanos

It has been known that the fi rst reference of the word Bioethics in the twentieth century was due to German theologist Fritz Jahr in 1927. In that surprising paper Jahr, a protestant Lutheran university professor, proposes humble catholic deacon, Saint Francis of Assisi (1181-1226), as the fi rst discoverer of Bioethics in Western Civilization. At the same time, Jahr quotes K.C.F Krause, a Mas...

Hilbert's programs: 1917--1922

Hilbert's finitist program was not created at the beginning of the twenties solely to counteract Brouwer's intuitionism, but rather emerged out of broad philosophical reflections on the foundations of mathematics and out of detailed logical work; that is evident from notes of lecture courses that were given by Hilbert and prepared in collaboration with Bernays during the period from 1917 to 192...

Hilbert's Programs: 1917-1922

Hilbert’s finitist programwasnot created at the beginningof the twenties solely to counteract Brouwer’s intuitionism, but rather emerged out of broad philosophical reflections on the foundations of mathematics and out of detailed logical work; that is evident from notes of lecture courses that were given by Hilbert and prepared in collaboration with Bernays during the period from 1917 to 1922. ...

Francis W. Peabody, 1917