FINITE SIZE SCALING FOR FIRST ORDER TRANSITIONS: POTTS MODEL

The finite-size scaling algorithm based on bulk and surface renormalization of de Oliveira (1992) is tested on q-state Potts models in dimensions D = 2 and 3. Our Monte Carlo data clearly distinguish between first- and second-order phase transitions. Continuous-q analytic calculations performed for small lattices show a clear tendency of the magnetic exponent Y = D - beta/nu to reach a plateau for increasing values of q, which is consistent with the first-order transition value Y = D. Monte Carlo data confirm this trend.Comment: 5 pages, plain tex, 5 EPS figures, in file POTTS.UU (uufiles

Tuberculosis determined by Mycobacterium bovis in captive waterbucks (Kobus ellipsiprymnus) in São Paulo, Brazil

Two waterbucks from São Paulo Zoo Foundation exhibited respiratory symptoms in July 2004. After euthanasia, granulommas in lungs and mediastinic lymph nodes were observed. Acid-fast bacilli isolated were identified as Mycobacterium bovis spoligotype SB0121 by PRA and spoligotyping. They were born and kept in the same enclosure with the same group, without any contact to other species housed in the zoo. This is the first detailed description of M. bovis infection in Kobus ellipsiprymnus.FAPES

Literature review of mobile learning systems

This paper presents a research about the monotonic and failure behaviours of bolted joints made of thin plates of S350GD and S355MC steels grades, which are used for rack structures. A full factorial test matrix was performed considering two joints configurations (1+1 and 4+4 double shear bolted joints), two material thicknesses (2 and 3mm), three coatings (“black steel”, zinc coating, zinc plus paint) and two preload levels (25%×70%Fu and 70%Fu). Tests were performed under static monotonic loading until failure. Slip tests were also performed according to the EN 1090-2 standard to evaluate joint slip factors for the three material surface conditions. In addition to the experimental tests, numerical simulation of static tests were performed using elastoplastic material behaviour, based on Mises yield theory and isotropic hardening identified with experimental tensile testing data. The models were able to reproduce conveniently the ultimate loads of the joints and failure modes, including clamping and friction effects

Co-infecção pelo vírus dengue 3 e 4 em pacientes da Amazônia brasileira

The natural co-infection with dengue virus can occur in highly endemic areas where different serotypes have been observed for many years. We report here four cases of DENV-3/DENV-4 co-infection detected by serological and molecular tests among 674 patients with acute undifferentiated fever from the tropical medicine reference center of Manaus City, Brazil, between 2005 and 2010. Analysis of the sequences obtained indicated the presence of genotype 3 and 1 for DENV-3 and DENV-4 respectively.A co-infecção natural com os vírus dengue pode ocorre em áreas altamente endêmicas onde diferentes sorotipos têm sido transmitidos por muitos anos. Relatamos aqui quatro casos de co-infecção com DENV-3/DENV-4 detectados por testes sorológicos e moleculares entre 674 pacientes com febre indiferenciada aguda, atendidos em um centro de medicina tropical de referência da cidade de Manaus, Brasil, entre 2005 e 2010. As análises das sequências obtidas indicaram a presença dos genotipos 3 e 1 para DENV-3 e DENV-4 respectivamente

Co-infection of Dengue virus by serotypes 3 and 4 in patients from Amazonas, Brazil

A co-infecção natural com os vírus dengue pode ocorre em áreas altamente endêmicas onde diferentes sorotipos têm sido transmitidos por muitos anos. Relatamos aqui quatro casos de co-infecção com DENV-3/DENV-4 detectados por testes sorológicos e moleculares entre 674 pacientes com febre indiferenciada aguda, atendidos em um centro de medicina tropical de referência da cidade de Manaus, Brasil, entre 2005 e 2010. As análises das sequências obtidas indicaram a presença dos genotipos 3 e 1 para DENV-3 e DENV-4 respectivamente.The natural co-infection with dengue virus can occur in highly endemic areas where different serotypes have been observed for many years. We report here four cases of DENV-3/DENV-4 co-infection detected by serological and molecular tests among 674 patients with acute undifferentiated fever from the tropical medicine reference center of Manaus City, Brazil, between 2005 and 2010. Analysis of the sequences obtained indicated the presence of genotype 3 and 1 for DENV-3 and DENV-4 respectively

Reconstruction Activities And First Results From The Thomson Scattering Diagnostic On The Tcabr Tokamak

An incoherent and infrared Thomson scattering diagnostic (ITS) was transferred from ISTTOK (Lisboa) and reconstructed on TCABR (S. Paulo). In the first phase of this international collaboration, the diagnostic uses a Neodymium:Glass laser with up to 10 Joules per laser pulse and a first generation polychromator with three pairs of interference filters and avalanche photodiodes. It measures 90° scattered radiation in a single volume of observation with a single laser pulse to obtain the instant plasma electron temperature. This paper reports the reconstruction activities already carried out and presents the first experimental results. These activities include: new data model performance, laser refurbishing, new laser delivery system, stray-light reduction in the vacuum vessel, new collection lens and relative diagnostic calibration. A long run of experiments with this diagnostic shows consistency and coherence with the other TCABR diagnostics and gives indications to be able to contribute effectively to the Alfven heating program of this tokamak. © 2010 IOP Publishing Ltd.227Alonso, M.P., Wilcock, P.D., Varandas, C.A.F., (1999) Rev. Sci. Inst., 70 (1), p. 783Alonso, M.P., Berni, L., Severo, J.H., Borges, F.O., Elizondo, J.I., MacHida, M., Varandas, C.A.F., Galvo, R.M.O., (2008) Plasma Fusion. Sci., 996, p. 192Alonso, M.P., Figueiredo, A.C.A., Berni, L.A., Varandas, C.A.F., (2008) Plas. Sci. IEEE Trans. Plasma Sci., 36 (4), p. 11094Bellintani, J.V., Elfimov, A.G., Elizondo, J.I., Fagundes, A.N., Fonseca, A.M.M., Galvo, R.M.O., Guidolin, L., MacHida, M., (2006), 875, p. 350Berni, L.A., Alonso, M.P., Oliveira, R.M., (2004) Rev. Sci. Inst., 75 (10), p. 388

Citrumelos como porta-enxertos para a laranjeira 'Valência'

O objetivo deste trabalho foi avaliar as dimensões, a produção e a eficiência produtiva de copas de laranjeiras 'Valência', enxertadas em citrumelos, limão 'Cravo' e citremon, cultivados sem irrigação. Sintomas de tristeza, declínio e incompatibilidade com a copa foram avaliados visualmente em 11 genótipos de porta-enxertos. Os citrumelos 'Swingle' e W-2 proporcionaram laranjeiras maiores e mais produtivas, com a mesma eficiência produtiva que as formadas sobre o limão 'Cravo'. Os citrumelos F.80.6, F.80.5, F.80.3 e F.80.18 induziram plantas com altura e diâmetro de copas inferiores a 2 m. Os citrumelos e o limão 'Cravo' são tolerantes à tristeza e ao declínio e compatíveis com a laranja 'Valência'. O citremon é suscetível à tristeza