An All-night Polygraphic Study of Orbito-ventromedial Undercutting

All-night polygraphic studies of nocturnal angina pectoris.

In 12 patients with nocturnal angina pectoris, all-night continuous polygraphic recordings were made, including electroencephalogram, electrooculogram, electromyogram, impedance pneumogram and electrocardiogram, and ECG was analyzed in relation to heart rate and sleep stages. Out of 58 episodes of ischemic ST,T changes which were recorded with the peak frequency between 4:00 and 6:00a.m., 24 we...

All day, and all of the night.

[Orbito-sphenoidal expansive processes: an anatomopathological study of 82 cases].

PURPOSE To describe the orbito-sphenoidal expansive processes diagnosed at the Anatomo-Pathological Laboratory of the Fundação Faculdade Federal de Ciências Médicas de Porto Alegre - Complexo Hospitalar Santa Casa de Porto Alegre during a period of 15 years, evaluating their relative frequencies among other tumoral processes. METHODS We performed a statistical analysis of all orbital tumors w...

An Argumentation Framework with Backing and Undercutting

In this work we will combine two important notions for the argumentation community into Abstract Argumentation Frameworks (AFs). These notions correspond to Toulmin’s backings and Pollock’s undercutting defeaters. We will define Backing-Undercutting Argumentation Frameworks (BUAFs), an extension of AFs that includes a specialized support relation, a distinction between different attack types, a...

Undercutting in Argumentation Systems

Rule-based argumentation systems are developed for reasoning about defeasible information. They take as input a theory made of a set of strict rules, which encode strict information, and a set of defeasible rules which describe general behaviour with exceptional cases. They build arguments by chaining such rules, define attacks between them, use a semantics for evaluating the arguments, and fin...