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ECE radiometry in the TCABR tokamak
Silva,R. P. da; Fonseca,A. M. M.; Vuolo,J. H.; Calderon,E. R.; Galvão,R. M. O.; Kuznetzov,Yu. K.; Raffaelli,J. C.A millimeter/microwave detection system, in operation in the TCABR Tokamak is described. The system is used for electron cyclotron measurements. The main part of the system is a heterodyne sweeping radiometer based on a BWO oscillator that operates in the frequency range of 52 to 85GHz. The system operates in two modes : fixed frequency (maximum resolution of 10 mus) and sweeping mode (50 mus per frequency step...
Electron density measurements from right-hand cutoff of ECE in the TCABR tokamak
Fonseca,A. M. M.; Silva,R. P. da; Galvão,R. M. O.; Kuznetzov,Yu. K.; Elizondo,J. I.; Calderon,E. R.; Ruchko,L. F.; Vuolo,J. H.In tokamak machines with low toroidal magnetic fields and high plasma densities, the accessibility conditions impose restrictions to the detection of the Electron Cyclotron Emission (ECE). In these machines, the righthand cutoff condition can be used as an independent method to determine the local electron density from the ECE data in thermal discharges. In this paper is shown the results obatined from the dete...
Results of localized Alfvén wave heating in TCABR
Elfimov,A. G.; Lerche,E. A.; Galvão,R. M. O.; Ruchko,L. F.; Fonseca,A. M. M.; Silva,R. P. da; Bellintani,V.Using two dimensional numerical codes, we show that the direct electron heating found with electron cyclotron emission (ECE) radiometry is related to local Alfvén wave resonances in Tokamak Chauffage Alfvén Brésilean (TCABR) plasmas. The m/N =1/2, 0/2 and 0/3 modes are dominant in the observed wave heating, due to Alfvén wave continuum absorption. In particular, the resonant absorption of the m = 0 sideband har...
Identification of the Alfvén wave resonances in the TCABR tokamak by the microw...
Ruchko,L. F.; Galvão,R. M. O.; Lerche,E. A.; Elfimov,A. G.; Bellintani Jr,V.; Elizondo,J. I.; Fagundes,A. N.; Fonseca,A. M. M.; Kuznetsov,Yu. K.The experimental results on the Alfvén mode structure identification by the microwave reflectometry in TCABR tokamak are presented. The knowledge of the spatial spectrum of the excited waves is crucial for optimization of Alfvén wave plasma heating and noninductive current drive scenarios in tokamak plasmas. No less important is the possibility to use the Alfvén wave excitation for diagnostic purposes. A microw...
Colpocitologia em ambulatório de ginecologia preventiva
MOTTA,E.V. DA; FONSECA,A.M. DA; BAGNOLI,V.R.; RAMOS,L. DE O.; PINOTTI,J.A.OBJETIVOS: Avaliar os resultados de colpocitologia oncótica de mulheres atendidas em ambulatório de ginecologia preventiva (Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo). MÉTODOS: Foram estudadas 6821 mulheres submetidas a exame clínico e ginecológico com realização de colpocitologia oncótica pela técnica de Papanicolaou. Estas mulheres foram consideradas conforme a faixa etária e...
Human red blood cells have an enhancing effect on the relative expansion of CD8...
PORTO, B.; FONSECA, A.M.; GODINHO, I.; AROSA, F.A.; PORTO, G.Cell Prolif. 2001 Dec;34(6):359-67. Human red blood cells have an enhancing effect on the relative expansion of CD8+ T lymphocytes in vitro. Porto B, Fonseca AM, Godinho I, Arosa FA, Porto G. Laboratory of Cytogenetics, Abel Salazar Institute for the Biomedical Sciences (ICBAS), Porto, Portugal. malheiro@icbas.up.pt Abstract The present study was designed to analyse the effect of red blood cells on T-cell pr...
Toxic, antimicrobial and hemagglutinating activities of the purple fluid of the...
Melo,V.M.M.; Fonseca,A.M.; Vasconcelos,I.M.; Carvalho,A.F.F.U.The antimicrobial, hemagglutinating and toxic activities of the purple fluid of the sea hare Aplysia dactylomela are described. Intact or dialyzed purple fluid inhibited the growth of species of Gram-positive and Gram-negative bacteria and the action was not bactericidal but bacteriostatic. The active factor or factors were heat labile and sensitive to extreme pH values. The fluid preferentially agglutinated ra...
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