998 resultados para Pombal, Sebastião José de Carvalho e Melo, Marqués de, 1699-1782
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Foram analisados os dados referentes ao desenvolvimento de cercrias de S. mansoni das linhagens de Belo Horizonte (MG) e de So José dos Campos (SP), Brasil. Concluiu-se que aps a penetrao das cercrias pelo tegumento dos camundongos, no houve diferena significativa quanto ao nmero de vermes adultos que se desenvolveram, pertencentes s duas cepas estudadas.
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Foram estudados morfologicamente exemplares de S. mansoni adultos das linhagens de Belo Horizonte (MG), e de So José dos Campos (SP), Brasil. Concluiu-se haver diferenas significativas referentes s medidas de comprimento do verme, distncia entre as ventosas oral e acetabular, distncia entre a parte anterior dos vermes e a extremidade distal das gnadas e quanto ao nmero de testculos.
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OBJETIVO: Dentre os efeitos da poluio ambiental na sade da criana, destaca-se o aumento de internaes por pneumonias. O objetivo do estudo foi estimar a associao dessas internaes com o aumento dos poluentes atmosfricos. MTODOS: Trata-se de estudo ecolgico de sries temporais, realizado na cidade de So José dos Campos, SP, nos anos de 2000 e 2001. Foram utilizados dados dirios sobre o nmero de internaes por pneumonia, dados dirios de poluentes (SO2, O3 e PM10) e de temperatura e umidade do clima. Foram estimadas as correlaes entre as variveis de interesse pelo coeficiente de Pearson. Para estimar a associao entre as internaes por pneumonia e a poluio atmosfrica, utilizaram-se modelos aditivos generalizados de regresso de Poisson. Foram estimados os acrscimos das internaes por pneumonia para o intervalo interquartil para cada um dos poluentes estudados, com um intervalo de confiana de 95% RESULTADOS: Os trs poluentes apresentaram efeitos defasados nas internaes por pneumonia, iniciada trs a quatro dias aps a exposio e decaindo rapidamente. Na estimativa de efeito acumulado de oito dias observou-se ao longo desse perodo que para aumentos de 24,7 g/m na concentrao mdia de PM10 houve um acrscimo de 9,8% nas internaes. CONCLUSES: O estudo confirma que o potencial deletrio dos poluentes do ar sobre a sade pode ser detectado, tambm, em cidades de mdio porte. A magnitude do efeito foi semelhante ao observado na cidade de So Paulo. Alm disso, mostra a elevada susceptibilidade das crianas aos efeitos adversos advindos da exposio aos contaminantes atmosfricos.
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Dissertao de Mestrado, Engenharia e Gesto de Sistemas de gua, 26 de Maio de 2015, Universidade dos Aores.
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The objective of this work is to present elements of the project Student engagement in Schools (SES). The team consists of 10 researchers from six Universities. Student engagement in schools is a multidimensional construct that unites affective, behavioural, and cognitive dimensions of student adaptation in the school and has influence on studentsoutcomes. The team of researchers conceptualized two major studies, a differential study to analyze the relations between SES and contextual factors, personal factors, students outcomes, and a quasi-experimental study to analyze the effects on SES of a specific intervention programmes. In study 1, the sample size is around 600 students (150 6th graders, 150 7th graders, 150 9th graders, and 150 10th graders). We shall focus on years of school transition, with rural and urban populations, on different regions of the country, and on students with different family background. We shall conduct questionnaires with national and international scales. The study 2 will involve students in 7th and 9th grade, from four classes, two of the experimental group and two of the control group. Patterns of verbal communication between a teacher and students can influence the classroom environment and SES. This model of communication would result in more effective student management and more time on-task for learning.
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Estudamos comparativamente quatro tcnicas imunolgicas para o diagnstico da neurocisticercose (NC) utilizando lquido cefalorraquiano (LCR) como espcime clnico: as reaes de fixao de complemento (RFC), hemaglutinao passiva (RHA), imunofluorescncia indireta (RIF) e teste imunoenzimtico ELISA Foram ensaiadas 125 amostras de LCR de pacientes com NC comprovada e 94 amostras de LCR do grupo controle (60 de pacientes com quadros clnicos neurolgicos diversos e 34 de pacientes supostamente normais). Os ndices de sensibilidade e especificidade obtidos para os testes foram, respectivamente, de 48,0% e 90,4% para a RFC; 88,8% e 96,8% para a RHA; 87,2 e 98,9% para a RIF e 97,6% e 98,9% para o teste ELISA. A diferena significativa (p < 0,05) observada entre os testes permite concluir que o melhor teste para o diagnstico de NC foi o teste ELISA seguido das reaes de HA e IF.
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pp. 103-112
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The aim of this research was to evaluate the protein polymorphism degree among seventy-five C. albicans strains from healthy children oral cavities of five socioeconomic categories from eight schools (private and public) in Piracicaba city, So Paulo State, in order to identify C. albicans subspecies and their similarities in infantile population groups and to establish their possible dissemination route. Cell cultures were grown in YEPD medium, collected by centrifugation, and washed with cold saline solution. The whole-cell proteins were extracted by cell disruption, using glass beads and submitted to SDS-PAGE technique. After electrophoresis, the protein bands were stained with Coomassie-blue and analyzed by statistics package NTSYS-pc version 1.70 software. Similarity matrix and dendrogram were generated by using the Dice similarity coefficient and UPGMA algorithm, respectively, which made it possible to evaluate the similarity or intra-specific polymorphism degrees, based on whole-cell protein fingerprinting of C. albicans oral isolates. A total of 13 major phenons (clusters) were analyzed, according to their homogeneous (socioeconomic category and/or same school) and heterogeneous (distinct socioeconomic categories and/or schools) characteristics. Regarding to the social epidemiological aspect, the cluster composition showed higher similarities (0.788 < S D < 1.0) among C. albicans strains isolated from healthy children independent of their socioeconomic bases (high, medium, or low). Isolates of high similarity were not found in oral cavities from healthy children of social stratum A and D, B and D, or C and E. This may be explained by an absence of a dissemination route among these children. Geographically, some healthy children among identical and different schools (private and public) also are carriers of similar strains but such similarity was not found among other isolates from children from certain schools. These data may reflect a restricted dissemination route of these microorganisms in some groups of healthy scholars, which may be dependent of either socioeconomic categories or geographic site of each child. In contrast to the higher similarity, the lower similarity or higher polymorphism degree (0.499 < S D < 0.788) of protein profiles was shown in 23 (30.6%) C. albicans oral isolates. Considering the social epidemiological aspect, 42.1%, 41.7%, 26.6%, 23.5%, and 16.7% were isolates from children concerning to socioeconomic categories A, D, C, B, and E, respectively, and geographically, 63.6%, 50%, 33.3%, 33.3%, 30%, 25%, and 14.3% were isolates from children from schools LAE (Liceu Colgio Albert Einstein), MA (E.E.P.S.G. "Prof. Elias de Melo Ayres"), CS (E.E.P.G. "Prof. Carlos Sodero"), AV (Alphaville), HF (E.E.P.S.G. "Honorato Faustino), FMC (E.E.P.G. "Prof. Francisco Mariano da Costa"), and MEP (E.E.P.S.G. "Prof. Manasses Ephraim Pereira), respectively. Such results suggest a higher protein polymorphism degree among some strains isolated from healthy children independent of their socioeconomic strata or geographic sites. Complementary studies, involving healthy students and their families, teachers, servants, hygiene and nutritional habits must be done in order to establish the sources of such colonization patterns in population groups of healthy children. The whole-cell protein profile obtained by SDS-PAGE associated with computer-assisted numerical analysis may provide additional criteria for the taxonomic and epidemiological studies of C. albicans.
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Dengue is currently a major public-health problem. Dengue virus (DENV) is classified into four distinct serotypes, DENV 1-4. After 28 years of absence, DENV-4 was again detected in Brazil in 2010 in Roraima State, and one year later, the virus was identified in the northern Brazilian states of Amazonas and Pará, followed by Rio de Janeiro and São Paulo. In Minas Gerais, the first confirmed case of DENV-4 occurred in the municipality of Frutal in 2011 and has now been isolated from a growing number of patients. Although DENV-2 is associated with the highest risk of severe forms of the disease and death due to the infection, DENV-4 has also been associated with severe forms of the disease and an increasing risk of hemorrhagic manifestations. Herein, the first fatal case of confirmed DENV-4 in Brazil is reported. The patient was an 11-year-old girl from the municipality of Montes Claros in northern Minas Gerais State, Brazil. She had idiopathic thrombocytopenic purpura as a comorbid condition and presented with a fulminant course of infection, leading to death due to hemorrhagic complications. Diagnosis was confirmed by detection of Dengue-specific antibodies using IgM capture enzyme-linked immunosorbent assay and semi-nested RT-PCR. Primary care physicians and other health-care providers should bear in mind that DENV-4 can also result in severe forms of the disease and lead to hemorrhagic complications and death, mainly when dengue infection is associated with coexisting conditions.
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Dissertao para obteno do Grau de Mestre em Tecnologia e Segurana Alimentar
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Os autores fazem uma reviso de 103 casos de endocardites infecciosas, dos quais 52 apresentaram manifestaes neurolgicas. Dos 52 que no tiveram problemas neurolgicos, 39 faleceram 175%), enquanto que dos 51 que no tiveram alteraes do sistema nervoso, apenas 18 evoluram para o bito 135,3%). A endocardite infecciosa com manifestaes neurolgicas, na presente srie, foi dominante no sexo masculino. Os grupos etrios mais envolvidos foram as crianas, adolescentes e adultos jovens. Houve outro pico importante em pacientes acima de 50 anos. Os critrios para o diagnstico de endocardite infecciosa utilizados no presente estudo, foram os clssicos, acrescidos de outros considerados de extrema utilidade, medida que a experincia foi sendo acumulada, acompanhando paralelamente as modificaes dos padres etiolgicos, assim como as alteraes dos espectros clnicos da doena, conseqentes a muitos fatores aqui discutidos. Os principais distrbios neurolgicos observados foram as manifestaes meningeias, 25/52 148,1%), alteraes do comportamento, 20/52 (38,4%), fenmenos motores (paralisias e paresias), 20/52 (38,4%). Alteraes do nvel de conscincia (torpor ou coma), ao lado de outras menos comuns, como cefalia 16/52 (26,9%), convulses, 10/52 (19,2%), afasia 7/52 (13,5%) e manchas de Roth, 7/53 (13,5%). As manifestaes neurolgicas frequentemente foram mltiplas em um mesmo paciente. Nas formas de endocardite, foram em muitos casos praticamente as alteraes que abriram e dominaram a cena clnica. As mais comuns foram: sndrome meningeia, sndrome vascular e encefalopatia txica. Foi difcil, em conseqncia de mltiplas manifestaes neurolgicas num mesmo paciente, estabelecer critrios entre a leso neurolgica e o prognstico, embora o coma profundo, as convulses, os distrbios motores acentuados, a meningite e as alteraes do comportamento, isoladamente ou em associao, faam com que o mesmo seja bem mais srio. O germe mais encontrado em nossa srie foi oStaphylococcus aureus, relacionado com formas agudas da infeco endocrdica, aliado a processos destrutivos valvulares e a srias alteraes neurolgicas tais como meningite, encefalite, infartos, hemorragias e abcessos cerebrais. Os principais achados neurolgicos referentes patologia, no estudo de 15 casos, so apresentados ao lado de concluses tiradas de reflexes sobre o material analisado e da experincia vivida. Uma reviso da literatura feita desde os trabalhos iniciais sobre a doena at os dias de hoje, ficando evidenciada a importncia do tema pelas grandes contribuies apresentadas pelos diferentes autores.
Catstrofes Naturais - inundaes e tempestades: abordagem ao seu impacto no mercado segurador portugus
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Dissertao apresentada como requisito parcial para obteno do grau de Mestre em Estatstica e Gesto de Informao
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O lugar do palcio de José Maria Eugnio de Almeida, com a sua fachada principal voltada para o Largo de So Sebastião da Pedreira, marca um dos limites da cidade at ao sculo XVIII, num cruzamento dinmico de vias para os territrios arrabaldinos. Constituindo-se como espcime relevante da arquitectura oitocentista de filiao clssica, delineado por Jean Colson, a Casa de Eugnio de Almeida foi cenografada no grandioso Parque de Santa Gertrudes com rara qualidade paisagstica e arquitectnica, neste caso ainda hoje evidente nas antigas cocheiras e cavalarias, delineadas por Giuseppe Cinatti.
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The first choice of treatment for American cutaneous leishmaniasis is the pentavalent antimonial drug. Although it has been shown that this treatment is mostly effective and indicated, some disadvantages should be taken into account such as side effects, long term treatment inconveniences and counter-indication for patients suffering from cardiopathy, nephropathy; yet, aging, pregnancy and other conditions. With the advent of the vaccine anti-American cutaneous leishmaniasis as a prophylactic measure, studies on therapy using the vaccine associated or not with other drugs have been performed by many investigators and it is currently among the alternative treatments and prevention measures for American cutaneous leishmaniasis. In conclusion, the association between antimony and vaccine (immunochemotherapy) showed the same cure rate when compared with the standard treatment (100%) and it was also able to reduce the salt volume in 17.9% and treatment length from 87 to 62 days, decreasing side effects.
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Introduction Six genotypes of the hepatitis C virus (HCV) have been identified thus far, and their distribution is well defined. Genotype 1, which is the most prevalent worldwide, is always compared to genotypes 2 and 3, particularly in terms of treatment response. However, little is known about the differences between genotypes 2 and 3 because these genotypes are analyzed together in most studies. Therefore, the aim of this study was to evaluate differences in the clinical, epidemiological, laboratory, and histological parameters between HCV-2 and HCV-3. Methods Patients with chronic hepatitis C infected with genotypes 2 and 3 were studied retrospectively and compared according to clinical, laboratory, and histological aspects. Hepatitis C virus-ribonucleic acid (HCV-RNA) was analyzed quantitatively by TaqMan® real-time PCR, and the HCV genotype was determined by sequencing the 5′-untranslated region. Results A total of 306 patients with chronic HCV-2 (n=50) and HCV-3 (n = 256) were studied. Subtype 2b (n=17/50) and subtype 3a (n=244/256) were the most prevalent among patients infected with HCV-2 and HCV-3, respectively. The mean age was 47 ± 10 years, and there was a predominance of men in the group studied (61%). Comparative analysis between HCV-2 and HCV-3 showed a younger age (p=0.002), less prevalence of arterial hypertension (p=0.03), higher serum albumin levels (p=0.01), more advanced stage of liver fibrosis (p=0.03), and higher frequency of steatosis in patients with HCV-3 (p=0.001). After multivariate regression analysis, all the variables, except serum albumin, remained as variables associated with HCV-3 in the final model. Conclusions Clinical and histological differences exist between HCV-2 and HVC-3, which suggests the need for separate analyses of these genotypes.