Sample records for third sound
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Sample records 1 - 6 shown.



1

Subsídio ao melhor conhecimento do tifo exantemático neotrópico no Brasil: presença do virus no leite

Magalhães, Octavio de; Rocha, Adyr
1948-03-01

Resumo em inglês In articles, already published, we have proved that the strain V. B. of Brazilian virus, goes through the placenta (Macacus rhesus) (1) and the apparently normal gastro-intestinal tube (1934-1937) (Canis familiaris) (2). Today we present the idea that the Brazilian virus can reach the milk of an animal even when the latter has only the unapparent disease. In former articles (**), we have shown that the goat (Capra hircus) can be an excellent reservoir of Brazilian virus, (mais) having the strain V. B. in its blood and presenting a Weil Felix reaction high and in “group”, with the disease unapparent. When the goats are bred in the laboratory, and even in some foci of the disease, they give a negative Weil Felix, being zero for all the nine strains of Proteus. In the interior of Brazil, in many localities, goats substitute cows, in supplying milk for children and adults, and in some districts goat’s milk is considered superior to cow’s milk, possessing marvellous qualities for men, women an children. Having proved, now, that goat’s milk can contain the virus even when the animal presents nothing clinically, and having also shown that this virus goes through the digestive tube apparently sound, it is easy to understand how infants-in-arms, that is, only a few months old, living in strictly domestic surroundings, can contract the disease; we have many such cases on record. Protocol of the experiments: Goat nº 2, white, January 1948. This animal had been inoculated with the V. B. strain of the Brazilian virus in June 1947, via intra-peritoneal, presenting nothing then, not even a feverish reaction. On that occasion it was not possible to isolate the virus of the blood, although the Weil Felix reaction was positive, high and in “group”. Now January 17, 1948, seven months later, the same animal was reinoculated with a semple of virus V. B. in the same manner (intra-peritoneal) two days after bringing forth two sturdy kids. The virus V. B. was obtained from guinea-pig n. 7170 whose thermic graph was as follows: Temperatura – 38,8 – 39,1 – 39,5 – 39,4 –39,8 – 40,4 – 40,2 – 40,1 - + Necropsy – Typical lesions. The spleen weighed 5 grammes. With 3c.c. of emulsion from the nervous system of this guinea-pig, we inoculated not only the goat, as also two guineapigs, number 14 and number 5. The following is the thermic graph of one: - Guinea-pig n. 14 – 38,9 – 39,1 – 39,2 – 39.2 – 40,7 – 41,0 – 40,5 – 40,4 – 40,1 - + Typical lesions. Guinea-pig n. 2 presented the following thermic graph after the infective inoculation: - 39,5 – 39,7 – 39,7 – 39,7 – 39,5 – 39,3 – 39,5 – 39,5 – 39,5 – etc. Clinically, this animal presented nothing unusual, feeding well and suckling the kids normally. The Weil Felix reaction was positive, in “group” high very similar to the reaction obtained in June 1947, with the first infective inoculation. On the third, fourth, fifth, sixth and seventh day after the infective inoculation, we took milk from the goat and inoculated male guinea-pigs via intra-celular and via intra-peritoneal, giving 5 c.c. to each animal. Guinea-pig n. 4663, inoculated with 5 c.c. of milk, via intra-muscular, taken on the third day of the infectaive inoculation, presented the following thermic graph: - 38.8 (*) – 39,1 – 39,0 – 39,1 – 40,1 – 40,1 – 40,8 (**) – 40,8 – Killed – Typical deisions (***). The virus V. B. of this goat, circulated naturally in the blood up to the third day, having passed into the milk, producing nothing in the kids, on account of the natural resistance of these animals to the disease. The Weil Felix reaction and that of Widal for the Burcellas suis, abortus and militensis were negative for the goat and the kids. It is remarkable that, even with inoculation of the living virus after a period of seven months we cannot get a real and absolute immunity of sensitive animals. We shall return to this subject later. The hart Mazama simplicicornis may be a carrier of the virus in Brasil. The experimental serum against the virus of Exanthematic neotropical typhus has not protected guinea-pigs.

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2

Sobrevida e fatores prognósticos na insuficiência cardíaca sistólica com início recente dos sintomas/ Survival and prognostic factors in systolic heart failure with recent symptom onset

Rassi, Salvador; Barretto, Antônio Carlos Pereira; Porto, Celmo Celeno; Pereira, Crésio Romeu; Calaça, Bárbara Wosjunk; Rassi, Daniela C.
2005-04-01

Resumo em português OBJETIVO: Analisar a sobrevida e fatores prognósticos associados à mortalidade em pacientes com insuficiência cardíaca sistólica acompanhados desde o início de seus sintomas. MÉTODOS: Coorte de 204 pacientes consecutivos com insuficiência cardíaca sistólica, identificada com início dos sintomas até seis semanas do primeiro atendimento e seguida por 46 meses. As variáveis prognósticas analisadas foram coletadas à inclusão e correlacionadas com a mortalidade (mais) cardiovascular. A Fração de Ejeção (FE) Resumo em inglês OBJECTIVE: To study survival and prognostic factors associated with mortality in patients with systolic heart failure followed up since symptom onset. METHODS: We carried out a study with a cohort of 204 consecutive patients with systolic heart failure, whose symptom onset occurred within the 6 weeks preceding the first medical visit. They were followed up for 46 months. The prognostic variables analyzed were collected when the patients were included in the study and were (mais) correlated with cardiovascular mortality. An EF

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3

Recém-nascidos gerados por mães com alto risco gestacional: estudo das emissões otoacústicas produtos de distorção e do comportamento auditivo/ Neonates born to mothers with high-risk pregnancy: study in distortion product otoacoustic emission and auditory behavioral

Ruggieri-Marone, Marisa; Lichtig, Ida; Marone, Silvio A. M.
2002-03-01

Resumo em português Introdução: As perdas auditivas no Brasil têm sido diagnosticadas ao redor de 2 a 3 anos de idade. Até então, a criança perde informações auditivas e interrompe o circuito da comunicação. Recomenda-se mais de uma técnica para a avaliação da audição. Os profissionais responsáveis devem encontrar a melhor forma de detecção e intervenção, para que crianças nascidas fora dos grandes centros sejam diagnosticadas precocemente. A gravidez de alto risco pode (mais) conter indicadores de risco para a deficiência auditiva. Forma de estudo: Clínico prospectivo randomizado. Casuística e Método: Este estudo prospectivo analisou 174 recém-nascidos gerados por mães com risco gestacional, por meio de emissões otoacústicas produto de distorção e pela observação do comportamento auditivo com instrumentos musicais. Os RN estavam em fase de alta hospitalar e com idade corrigida maior ou igual a 37 semanas. Resultado: Houve 23% de "Falha" na primeira avaliação; após 30 dias de alta hospitalar, numa segunda avaliação, 66,8% destes apresentaram resultado de "Passa", sendo que 4,6% tiveram alterações de orelha média e/ou externa. A amplitude das Emissões Otoacústicas, a relação Produto de Distorção/Ruído de Fundo e a reação comportamental foram semelhantes em todas as crianças. Conclusões: As emissões otoacústicas devem ser realizadas após a inspeção e limpeza do MAE. A avaliação comportamental não foi sensível para alterações de orelha média. Mesmo sem inspeção e limpeza do MAE, a utilização concomitante de ambos os métodos forneceu informações sobre o sistema auditivo periférico e central. Os fatores de risco gestacionais não interferiram nas medidas de emissões otoacústicas. Resumo em inglês Introduction: The hearing loss in Brazil has been diagnosed in the second or third year of age. Until there, the child loses auditory information and disrupts the communication circuit. It is recommend more than one evaluation auditory method. The staff must be finding the best detection and intervention way for the early diagnostic in children born in small cities. The high-risk pregnancy may have some hearing loss risk indicator. Study design: Clinical prospective rando (mais) mized. Casuistic and method: This prospective work has been to study the results of distortion product otoacoustic emissions and the auditory behavior in 174 neonates. The neonates have been examined on the same day, as the neonates were to be discharged from the hospital and at the adjusted age of 37 weeks or older. Results: There was 23% Refer in the first step. This, 66,8% obtained Pass result and 4,6% was find middle and/or external ear alteration, 30 days before discharged from the hospital. There was no difference of otoacoustic emission amplitude, signal/noise ration and auditory behavior. Conclusion: The otoacoustic emissions should have been done after examining and cleaning the ear canal and that the behavioral assessment had not detected alterations of the middle ear. The concomitant use of otoacoustic emissions and assessment of auditory behavior during neonatal period has provided important information about peripheral auditory system and central auditory pathways. The high-risk pregnancy has not affected otoacoustic emission measurements or auditory behavior after instrumental sound stimulation.

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4

Efeito cariostático de restaurações adesivas em superfícies radiculares: estudo in vitro/ Caries inhibition around adhesive restorations in roots: in vitro study

HARA, Anderson Takeo; MAGALHÃES, Cláudia Silami de; RODRIGUES Jr., Antonio Luiz; SERRA, Mônica Campos
2000-06-01

Resumo em português Materiais restauradores que liberam íons flúor e/ou promovem adesão à estrutura dental têm sido relacionados com a inibição do desenvolvimento de lesões de cárie adjacentes às restaurações. A hipótese testada neste estudo foi a de que o uso de resina composta/sistema adesivo tem efeito cariostático semelhante a um material adesivo que libera íons flúor - cimento de ionômero de vidro - sobre a superfície radicular adjacente às restaurações. Foram utili (mais) zadas 20 raízes de terceiros molares humanos extraídos, embutidas em resina de poliestireno e planificadas. Cavidades padronizadas foram preparadas e restauradas aleatoriamente com (a) Chelon-Fil (Espe) ou (b) Z100/SingleBond (3M). Valores iniciais (KHNi) de microdureza superficial Knoop da dentina foram obtidos a 100, 200 e 300 mim da margem oclusal das restaurações. Uma área de 2,0 mm ao redor da restauração foi delimitada e submetida à indução de cárie artificial. Obtiveram-se, então, os valores finais (KHNf) de microdureza, nas mesmas condições e localizações da leitura inicial. As diferenças entre KHNi e KHNf foram consideradas para a análise estatística. As medianas de KHNi - KHNf nas distâncias de 100, 200 e 300 mim foram para (a): -3,8; -0,3; -1,0; e para (b): 3,3; 2,5; 1,7. O teste de Kruskal-Wallis não evidenciou diferença significativa entre as distâncias dentro de cada grupo. Às distâncias de 200 e 300 mim, não houve diferença significativa entre os materiais avaliados. À distância de 100 mim, (a) diferiu significativamente de (b) (p Resumo em inglês Dental materials that release fluoride have been shown to be effective in caries inhibition around restorations. Adhesive materials would also be effective in caries inhibition by sealing and protecting cavity margins from acidic demineralization. This in vitro study tested the hypothesis that composite restorations with a dentin adhesive system have a caries preventive effect similar to that of an adhesive material with fluoride - glass-ionomer cement - on root surfaces. (mais) Twenty roots from extracted sound third molars were embedded in polystyrene resin and ground flat. Standardized cavities were prepared in leveled root surfaces and randomly restored with (a) Chelon-Fil (Espe) or (b) Z100/SingleBond (3M). Baseline indentations were measured at 100, 200 and 300 mum from the occlusal margins of each restoration and the surface microhardness values were obtained using a Knoop diamond indenter. A 2.0 mm wide margin around the restorations was submitted to a pH-cycling model, at 37ºC. After that, surface microhardness was measured again, as it was before. The differences between baseline and final surface microhardness were considered for statistical analysis. The median values of differences were (a): -3.8; -0.3; -1.0; and (b): 3.3; 2.5; 1.7, for the distances of 100, 200 and 300 mum, respectively. The Kruskal-Wallis test did not show statistically significant difference between 100, 200 and 300 mum distances in each tested group. There was no difference between the studied materials at the distances of 200 and 300 mum. Chelon-Fil was statistically different from Z100/SingleBond, at 100 mum (p

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5

Dosagem única de troponina cardíaca T prediz risco adverso na insuficiência cardíaca descompensada/ Single cardiac troponin T measurement predicts risk for adverse outcome in decompensated heart failure/ Dosificación única de troponina cardíaca T predice riesgo adverso en la insuficiencia cardiaca descompensada

Oliveira, Manoel D. C.; Álvares, Juliana; Moreira, Maria Consolação V.
2010-04-01

Resumo em português FUNDAMENTO: O aumento discreto de troponina cardíaca no sangue de pacientes com insuficiência cardíaca (IC) sugere que miofibrilas são degradadas no miocárdio e liberadas na circulação, refletindo um processo contínuo e progressivo de lesão do aparato contrátil. OBJETIVO: Correlacionar o nível sérico da troponina cardíaca-T (TnTc) à admissão hospitalar de pacientes com IC descompensada e o prognóstico. MÉTODOS: Foram incluídos 79 pacientes consecutivos, (mais) internados por IC descompensada, com FEVE Resumo em espanhol FUNDAMENTO: El aumento discreto de troponina cardíaca en la sangre de pacientes con insuficiencia cardiaca (IC) sugiere que miofibrillas se degraden en el miocardio y se liberen en la circulación, lo que refleja un proceso continuo y progresivo de lesión del aparato contráctil. OBJETIVO: Correlacionar el nivel sérico de la troponina cardíaca-T (TnTc) al ingreso hospitalario de pacientes con IC descompensada y el pronóstico. MÉTODOS: Se incluyó a 79 pacientes cons (mais) ecutivos, internados por IC descompensada, con FEVI Resumo em inglês BACKGROUND: The slight increase in cardiac troponin in the blood of patients with heart failure (HF) suggests that myofibrils are degraded in the myocardium and released in the circulation, reflecting a continuous and progressive injury process in the contractile system. OBJECTIVE: To correlate the serum levels of cardiac troponin T (TnT) at the hospital admission of patients with decompensated HF and prognosis. METHODS: A total of 79 consecutive patients, hospitalized du (mais) e to decompensated HF, with LVEF

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6

Classificando Regimes Políticos na América Latina, 1945-1999/ Classifying Political Regimes in Latin America, 1945-1999/ Pour un Classement des Régimes Politiques en Amérique Latine entre 1945 et 1999

Mainwaring, Scott; Brinks, Daniel; Pérez-Liñán, Aníbal
2001-01-01

Resumo em inglês This paper is about two related subjects: how to classify political regimes in general, and how Latin American regimes should be classified for the 1945-1999 period. We make five general claims about regime classification. First, regime classification should rest on sound concepts and definitions. Second, it should be based on explicit and sensible coding and aggregation rules. Third, it necessarily involves some subjective judgments. Fourth, the debate about dichotomous (mais) versus continuous measures of democracy creates a false dilemma. Neither democratic theory, nor coding requirements, nor the reality underlying democratic practice compel either a dichotomous or a continuous approach in all cases. Fifth, dichotomous measures of democracy fail to capture intermediate regime types, obscuring variation that is essential for studying political regimes. This general discussion provides the grounding for our trichotomous ordinal scale, which codes regimes as democratic, semi-democratic or authoritarian in nineteen Latin American countries from 1945 to 1999. Our trichotomous classification achieves greater differentiation than dichotomous classifications and yet avoids the need for massive information that a very fine grained measure would require.

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