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Terapêutica após progressão do carcinoma do pulmão de não pequenas células pre...
Araujo, A.; Magalhães, M.; Febra, J.; Coutinho, F.; Rosendo, E.; Castro, A.; Araujo, A.; Ferreira, G.; Marinho, C.; Rocha, E.O carcinoma do pulmão de não pequenas células continua tendo um prognóstico sombrio. Nos estádios IB a alguns IIIB, o tratamento recomendado passará por cirurgia e quimioterapia (QT), radioterapia e QT ou pelas três modalidades em conjunto. Infelizmente, a maioria destes doentes apresenta progressão da sua doença ao fim de alguns meses. Se a progressão envolver múltiplos locais, terá que ser considerada uma nov...
Unusual situations that arise with the Dirac delta function and its derivative
Coutinho,F.A.B; Nogami,Y; Toyama,F.MThere is a situation such that, when a function ƒ(<img src="/img/revistas/rbef/v31n4/a04x.gif" align="absmiddle">) is combined with the Dirac delta function δ(<img src="/img/revistas/rbef/v31n4/a04x.gif" align="absmiddle">), the usual formula <img src="/img/revistas/rbef/v31n4/a04form01.gif" align="absmiddle">does not hold. A similar situation may also be encountered with the derivative of the delta f...
A note on nonholonomic systems
Coutinho,F.A.B.; Amaku,M.This note describes a question that deals with nonholonomic systems, a subject that has been gradually fading away from textbooks and even treated somewhat incorrectly as holonomic.
The time-dependent Schrödinger equation: the need for the Hamiltonian to be sel...
Araujo,Vanilse S.; Coutinho,F. A. B.; Toyama,F. M.We present some simple arguments to show that quantum mechanics operators are required to be self-adjoint. We emphasize that the very definition of a self-adjoint operator includes the prescription of a certain domain of the operator. We then use these concepts to revisit the solutions of the time-dependent Schroedinger equation of some well-known simple problems - the infinite square well, the finite square we...
On the delta function normalization of the wave functions of the aharonov-bohm ...
Araujo,Vanilse S.; Coutinho,F.A.B.; Perez,J. FernandoIn a previous paper, we found the most general boundary conditions for the Aharonov -Bohm scattering of a Dirac particle. We found the resulting wave functions but we did not worry about delta normalizing them. As is well know, in practice, it is not easy to evaluate the diverging integrals occurring in the process. The purpose of this paper is to evaluate those integrals and present the resulting delta normali...
Linfoma Primitivo do Sistema Nervoso Central em Doente com Sida
Bau, J; Teotónio, R; Pacheco, MH; Mafra, M; Coutinho, FO aumento da incidência do linfoma cerebral primitivo parece ser real em pessoas imunologicamente normais. Contudo, os linfomas do sistema nervoso central têm uma muito maior incidência em doentes imunodeprimidos tais como os submetidos a transplantes cardíacos ou renais, doentes com deficiência de IgA ou síndrome de Wiskott-Aldrich. Assim, não é surpreendente o aumento da predisposição dos doentes com a síndro...
Infective endocarditis.
Proença, R; Serviços de Medicina e Doenças Infecciosas, Hospital de Curry Cabral, Lisboa.; Serrano, A; Martins, T; Machado, J; Maltez, F; Coutinho, FTwo different series of patients with Infectious Endocarditis (IE), hospitalized in the same ward of Curry Cabral Hospital in Lisbon, are presented and compared. The two series were separated by a ten-year period--the first included patients observed from 1970 to 1976 and the second from 1988 to 1998. In the first series (20 patients), IE occurred mainly in patients with previous cardiac valvular lesion, the co...
Primary lymphoma of the central nervous system in a patient with AIDS.
Bau, J; Serviço de Medicina 1. Pavilhão O, Hospital Curry Cabral, Lisboa.; Teotónio, R; Pacheco, M H; Mafra, M; Coutinho, FThe increasing incidence of primary brain lymphoma appears to be real in immunologically normal people. However, lymphoma of the central nervous system has a much higher incidence in patients with immune deficient status as in renal and cardiac transplants, patients with IgA deficiency, or Wiskott-Aldrich syndrome. Thus, the increased predisposition of AIDS patients to brain lymphoma is not surprising, this bei...
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