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Search Results: 1 - 10 of 177202 matches for " Cesar de;STRAUSS "
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Significance of isolated hepatitis B core antibody in blood donors from S o Paulo
ALMEIDA NETO Cesar de,STRAUSS Edna,SABINO Esther Cerdeira,SUCUPIRA Maria Cecília Araripe
Revista do Instituto de Medicina Tropical de S?o Paulo , 2001,
Abstract: The clinical significance of isolated anti-HBc is still a challenge. To elucidate the real importance of this finding in our blood donors, an investigation algorithm was tested. One hundred and twelve isolated anti-HBc seropositive blood donors underwent clinical evaluation and retesting of HBV markers. Those who presented repeatedly reactive isolated anti-HBc, received a single dose of hepatitis B recombinant vaccine to verify anti-HBs early response. A HBV-DNA determination by PCR was done for those who did not test positive to anti-HBs after vaccine. The level of anti-HBc was recorded as a ratio of the sample-to-cut-off values (S:C ratio) in 57 candidates at donation. Comparing true and false-positive anti-HBc results, the different S:C ratios of them were statistically significant and when less than 2, implying in a false-positive result probability over 80%. A high percent of false-positive results (16.07%) was verified after anti-HBc retesting. HBV immunity was characterized in 49.11%, either by anti-HBs detection in retesting (15.18%), or after a single dose HBV vaccination (33.93%). HBV-DNA was negative in all tested donors. In conclusion, this algorithm was useful to clarify the meaning of isolated anti-HBc in most of our blood donors.
Significance of isolated hepatitis B core antibody in blood donors from S?o Paulo
ALMEIDA NETO, Cesar de;STRAUSS, Edna;SABINO, Esther Cerdeira;SUCUPIRA, Maria Cecília Araripe;CHAMONE, Dalton de Alencar Fischer;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2001, DOI: 10.1590/S0036-46652001000400005
Abstract: the clinical significance of isolated anti-hbc is still a challenge. to elucidate the real importance of this finding in our blood donors, an investigation algorithm was tested. one hundred and twelve isolated anti-hbc seropositive blood donors underwent clinical evaluation and retesting of hbv markers. those who presented repeatedly reactive isolated anti-hbc, received a single dose of hepatitis b recombinant vaccine to verify anti-hbs early response. a hbv-dna determination by pcr was done for those who did not test positive to anti-hbs after vaccine. the level of anti-hbc was recorded as a ratio of the sample-to-cut-off values (s:c ratio) in 57 candidates at donation. comparing true and false-positive anti-hbc results, the different s:c ratios of them were statistically significant and when less than 2, implying in a false-positive result probability over 80%. a high percent of false-positive results (16.07%) was verified after anti-hbc retesting. hbv immunity was characterized in 49.11%, either by anti-hbs detection in retesting (15.18%), or after a single dose hbv vaccination (33.93%). hbv-dna was negative in all tested donors. in conclusion, this algorithm was useful to clarify the meaning of isolated anti-hbc in most of our blood donors.
Minera??o de dados meteorológicos para previs?o de eventos severos
Pessoa, Alex Sandro Aguiar;Lima, Glauston Roberto Teixeira De;Silva, José Demísio Sim?es da;Stephany, Stephan;Strauss, Cesar;Caetano, Mirian;Ferreira, Nelson Jesus;
Revista Brasileira de Meteorologia , 2012, DOI: 10.1590/S0102-77862012000100007
Abstract: this work aims the early detection of possible occurrences of severe convective events in central and southeast brazil by means of monitoring the output of the eta numerical weather prediction model for each forecasted time interval and for a selected set of variables. the studied period ranges from january to february 2007. classifiers were developed by two approaches, vector similarity and rough sets, in order to identify eta outputs that can be associated to such events. it was assumed that severe convective events can be correlated to a large number of atmospheric electric discharges. the classifiers grouped the eta meteorological model outputs for these selected variables based on the density of occurrences of cloud-to-ground atmospheric electrical discharges. both classifiers show good performance for the chosen 2-month period at the three selected mini-regions of the brazilian territory.
The protoMIRAX Hard X-ray Imaging Balloon Experiment
Jo?o Braga,Flavio D'Amico,Manuel A. C. Avila,Ana V. Penacchioni,J. Rodrigo Sacahui,Valdivino A. de Santiago Jr.,Fátima Mattiello-Francisco,Cesar Strauss,Márcio A. A. Fialho
Physics , 2015, DOI: 10.1051/0004-6361/201526343
Abstract: The protoMIRAX hard X-ray imaging telescope is a balloon-borne experiment developed as a pathfinder for the MIRAX satellite mission. The experiment consists essentially in a coded-aperture hard X-ray (30-200 keV) imager with a square array (13$\times$13) of 2mm-thick planar CZT detectors with a total area of 169 cm$^2$. The total, fully-coded field-of-view is $21^{\circ}\times 21^{\circ}$ and the angular resolution is 1$^{\circ}$43'. In this paper we describe the protoMIRAX instrument and all the subsystems of its balloon gondola, and we show simulated results of the instrument performance. The main objective of protoMIRAX is to carry out imaging spectroscopy of selected bright sources to demonstrate the performance of a prototype of the MIRAX hard X-ray imager. Detailed background and imaging simulations have been performed for protoMIRAX balloon flights. The 3$\sigma$ sensitivity for the 30-200 keV range is ~1.9 $\times$ 10$^{-5}$ photons cm$^{-2}$ s$^{-1}$ for an integration time of 8 hs at an atmospheric depth of 2.7 g cm$^{-2}$ and an average zenith angle of 30$^{\circ}$. We have developed an attitude control system for the balloon gondola and new data handling and ground systems that also include prototypes for the MIRAX satellite. We present the results of Monte Carlo simulations of the camera response at balloon altitudes, showing the expected background level and the detailed sensitivity of protoMIRAX. We also present the results of imaging simulations of the Crab region. The results show that protoMIRAX is capable of making spectral and imaging observations of bright hard X-ray source fields. Furthermore, the balloon observations will carry out very important tests and demonstrations of MIRAX hardware and software in a near space environment.
Anelídeos poliquetas da plataforma continental norte do Estado de S?o Paulo: I - padr?es de densidade e diversidade específica
Paiva, Paulo Cesar de;
Boletim do Instituto Oceanográfico , 1993, DOI: 10.1590/S0373-55241993000100006
Abstract: density and diversity patterns of the polychaetous annelids from the northern continental shelf of s?o paulo state, brazil, were studied. polychaetous densities were higher in the inner shelf, mainly in the southern transect. temporal variations were observed at the northern and central transects in the 20 and 35 m isobaths, with higher summer values. diversity values were lower in summer and higher during winter in the outer shelf. the inner shelf presented more complex diversity patterns with seasonal fluctuations in lower depths. muddy sediments presented higher densities; diversity and richness were higher in fine sand sediments. coarser sediments presented the highest values of evenness but low diversity. the higher diversity values in the shallowest stations were due to the higher number of species and in the deepest stations to the great evenness.
Anelídeos poliquetas da plataforma continental norte do Estado de S?o Paulo: I - Padr?es de densidade e diversidade específica
Paiva, Paulo Cesar de;
Brazilian Journal of Oceanography , 1993, DOI: 10.1590/S1679-87591993000100006
Abstract: density and diversity patterns of the polychaetous annelids from the northern continental shelf of s?o paulo state, brazil, were studied. polychaetous densities were higher in the inner shelf, mainly in the southern transect. temporal variations were observed at the northern and central transects in the 20 and 35 m isobaths, with higher summer values. diversity values were lower in summer and higher during winter in the outer shelf. the inner shelf presented more complex diversity patterns with seasonal fluctuations in lower depths. muddy sediments presented higher densities; diversity and richness were higher in fine sand sediments. coarser sediments presented the highest values of evenness but low diversity. the higher diversity values in the shallowest stations were due to the higher number of species and in the deepest stations to the great evenness.
A topicalidade e a distancia referencial: um estudo do sintagma nominal definido no gênero editorial
Freitas, Ernani Cesar de
Letras de Hoje , 2008,
Abstract: N o possui resumo
Arithmetics and homeopathic remedies Aritm tica y el medicamento homeop tico Aritm tica e o medicamento homeop tico
Amarilys de Toledo Cesar
International Journal of High Dilution Research , 2002,
Abstract: Um aluno médico me perguntou uma vez porque é que, quando alopata, ele só precisava saber as indica es dos medicamentos, a posologia correta e efeitos colaterais, mas agora, que estudava homeopatia, exigiam dele saber sobre o preparo dos medicamentos homeopáticos? é uma pergunta interessante, que me deixou pensando no assunto: as indica es dos medicamentos homeopáticos est o contidas na Matéria Médica e os efeitos colaterais est o relacionados com a própria Matéria Médica. Chegamos ent o às quest es relacionadas com a posologia.
Rare, extincted and extinguishing remedies. Medicamentos raros, extinguidos y en extinci 3n. Medicamentos raros, extintos e em extin § £o.
Amarilys de Toledo Cesar
International Journal of High Dilution Research , 2007,
Abstract:
Da cultura ao inconsciente cultural: psicologia e diversidade étnica no Brasil contemporaneo
Fernando Cesar de Araujo
Psicologia: Ciência e Profiss?o , 2002, DOI: 10.1590/s1414-98932002000400004
Abstract: Dentre os muitos desafios lan ados à Psicologia no mundo contemporaneo, espera-se que esse campo de conhecimento seja capaz de compreender a nova configura o do imaginário, que uma simples perspectiva subjetivista n o consegue alcan ar. Neste momento, a discuss o das quest es culturais e étnicas é um tema que emerge com for a no Brasil e o reconhecimento da cultura afro-brasileira torna-se um caminho obrigatório para o saber psicológico, sendo necessários, no entanto, novos conceitos teóricos - como o de inconsciente cultural - para tornar efetiva a participa o da Psicologia nessas discuss es. Many challenges have been thrown to Psychology in the contemporary world. About them, we hope Psychology can understand the new imaginary configuration, which an ordinary subjective perspective isn't able to achieve. In this moment, subjects related to culture and ethnic factors have emerged strongly in Brazil. The recognition of Afro-brazilian's culture is an obrigatory way to psychological knowledge. For that it is to deal with necessary new theoretical concepts - like 'cultural unconscious' - to make more effective the participation of Psychology in these discussions.
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