Armando Pereira, Graffiti: [reseña]

Armando E

Primary lung cancer remains a leading cause of death for both men and women in the United States and most Western countries, with mortality rates exceeding the rates of breast, colon and prostate cancers combined. Only a minority of patients with lung cancer can be offered potentially curative treatment and only half of those will actually be cured. Clearly there is a need to reduce mortality a...

Francisco C. Pereira

Clotrimazol é reduzido em eletrodo de mercúrio em tampão fosfato pH > 6 através de um processo reversível de um elétron. O processo eletródico apresenta forte efeito de adsorção, o qual pode ser minimizado na presença de Triton X-100. Clotrimazol pode ser determinado em níveis de 50 ng mL-1 quando pré-acumulado durante 3 min à –0,20 V. O método proposto foi aplicado para determinação do fármaco...

Hélio Pereira de Magalhães

He became interested in surgery during his undergraduate studies, particularly in experimental surgery (general and cardiovascular) and cardiopulmonary bypass (under the supervision of Dante Romanó). He did his residency in Cardiovascular Surgery at the Instituto de Cardiologia do Estado de São Paulo (ICE), currently, the Institute Dante Pazzanese de Cardiologia, in 1964 and 1965, remaining at ...

Maria E. Figueiredo-Pereira

When Graffiti Brings Order

Most researchers use Petri nets as a formal notation with mathematically defined semantics. Their graphical part is usually only seen as a notation, that does not carry semantics. Contrary to this tradition, we show in this article that, when created by a human, there is inherent semantics in the positions of places, transitions and arcs. We propose to use the full definition of Petri nets: whe...