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Search Results: 1 - 10 of 25141 matches for " Costa Luciano Bello "
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Effect of host-related factors on the intensity of liver fibrosis in patients with chronic hepatitis C virus infection
Costa Luciano Bello,Ferraz Maria Lucia Gomes,Perez Renata M.,Ferreira Adalgisa S.
Brazilian Journal of Infectious Diseases , 2002,
Abstract: There is increasing interest in the identification of factors associated with liver disease progression in patients infected with hepatitis C virus (HCV). We assessed host-related factors associated with a histologically advanced stage of this disease and determined the rate of liver fibrosis progression in HCV-infected patients. We included patients submitted to liver biopsy, who were anti-HCV and HCV RNA positive, who showed a parenteral risk factor (blood transfusion or intravenous drug use), and who gave information about alcohol consumption.Patients were divided into two groups for analysis: group 1 - grades 0 to 2; group 2 - grades 3 to 4. The groups were compared in terms of sex, age at the time of infection, estimated duration of infection and alcoholism. The rate of fibrosis progression (index of fibrosis) was determined based on the relationship between disease stage and duration of infection (years). Logistic regression analysis revealed that age at the time of infection (P<0.01; 95% CI 1.06-1.22) and the duration of infection (P<0.01; 95% CI 1.06-1.32) were independently associated with a more advanced stage of hepatitis C. The median index of fibrosis was 0.14 for the group as a whole. A significant difference in the index of fibrosis was observed between patients aged < 40 years at infection (median = 0.11) and patients aged > or = 40 years (median = 0.47). The main factors associated with a more rapid fibrosis progression were age at the time of infection and the estimated duration of infection. Patients who acquired HCV after 40 years of age showed a higher rate of fibrosis progression.
Effect of host-related factors on the intensity of liver fibrosis in patients with chronic hepatitis C virus infection
Costa, Luciano Bello;Ferraz, Maria Lucia Gomes;Perez, Renata M.;Ferreira, Adalgisa S.;Matos, Carla Adriana L.;Lanzoni, Valéria P.;Silva, Ant?nio Eduardo;
Brazilian Journal of Infectious Diseases , 2002, DOI: 10.1590/S1413-86702002000500002
Abstract: there is increasing interest in the identification of factors associated with liver disease progression in patients infected with hepatitis c virus (hcv). we assessed host-related factors associated with a histologically advanced stage of this disease and determined the rate of liver fibrosis progression in hcv-infected patients. we included patients submitted to liver biopsy, who were anti-hcv and hcv rna positive, who showed a parenteral risk factor (blood transfusion or intravenous drug use), and who gave information about alcohol consumption.patients were divided into two groups for analysis: group 1 - grades 0 to 2; group 2 - grades 3 to 4. the groups were compared in terms of sex, age at the time of infection, estimated duration of infection and alcoholism. the rate of fibrosis progression (index of fibrosis) was determined based on the relationship between disease stage and duration of infection (years). logistic regression analysis revealed that age at the time of infection (p<0.01; 95% ci 1.06-1.22) and the duration of infection (p<0.01; 95% ci 1.06-1.32) were independently associated with a more advanced stage of hepatitis c. the median index of fibrosis was 0.14 for the group as a whole. a significant difference in the index of fibrosis was observed between patients aged < 40 years at infection (median = 0.11) and patients aged 3 40 years (median = 0.47). the main factors associated with a more rapid fibrosis progression were age at the time of infection and the estimated duration of infection. patients who acquired hcv after 40 years of age showed a higher rate of fibrosis progression.
Subcontrata??o e informalidade na constru??o civil, no Brasil e na Fran?a
Costa, Luciano Rodrigues;
Caderno CRH , 2011, DOI: 10.1590/S0103-49792011000200012
Abstract: this paper presents a comparative analysis of the labor market of the construction industry in brazil and france, in a context of flexibility. this text, being the result of field research on construction sites in these two countries, discusses specifics of the informal labor contracts in the sector, which have produced a transfer of illegalities from large to small businesses. in the french case, through temporary agencies. in brazil, through small businesses underground, called "kittens." the perception of workers against such illegalities and their strategies to stay on the market are emphasized. in the french case, the work of illegal or semi-legal immigrants, made possible by temporary agencies. in brazil, it is clear that the industry has always been organized based on informality and seeks, gradually, to retain workers, even though informal work remains predominant.
A ma?? e o biscoito da sorte
Costa, Luciano da Fontoura;
Revista Brasileira de Ensino de Física , 2003, DOI: 10.1590/S0102-47442003000200005
Abstract: after reviewing the scientific methods as the most promising means for knowledge acquisition and prediction, we discuss how it is being changed in order to be more effectively applicable to biological problems.
Com olhos da suspeita: Nietzsche e o estatutoda experiência em educa o/Avec des yeux en suspicion: Nietzsche et le statut de l'expérience em éducation
Luciano Bedin da Costa
Reflex?o & A??o , 2011,
Abstract: Resumo Este artigo faz uma leitura do cotidiano educacional através da filosofia de Friedrich Nietzsche (1844-1900), discutindo conceitos como: niilismo, ressentimento, má consciência, for a e vontade de potência. A teoria nietzschiana é utilizada como ferramenta para pensar o cotidiano vivido nas práticas em educa o, rompendo com ainércia dos discursos lamentosos e niilistas. O artigo sustenta a tese de que, apesar da mesmice e repeti o, a diferen a mostra-se sempre primeira, afirmada pela experiência e experimenta o de si, num movimento de cria o e destrui o contínuas. Résumé Cet article est une lecture du quotidienne éducationnel par la philosophie de Friedrich Nietzsche (1844-1900) avec des concepts tels quels : nihilisme, ressentiment,mauvaise conscience, force et de la volonté de puissance. La théorie de Nietzsche est utilisé comme un outil de réflexion sur les pratiques quotidiennes vécu dans l'éducation,de rompre avec l'inertie du discours des pleurs et nihiliste. L'article soutient la thèse selon laquelle, en dépit de la similitude et la répétition, la différence était toujours le premier, affirmé par l'expérience et expérimentation avec l'autre dans un mouvement permanent de création et destruction.
RICARDO, Eleonora J. (Org.). Gest o da educa o corporativa - cases, reflex es e a es em educa o a distancia. 1. ed. S o Paulo : Pearson Prentice Hall, 2007.
Luciano Venelli Costa
Revista Organiza??es em Contexto , 2007,
Abstract: A educa o corporativa vem ganhando espa o nas estratégias de gest o de pessoas, à medida que se percebe como o talento humano faz a diferen a competitiva no mundo empresarial. A obra organizada por Eleonora Jorge Ricardo é uma coletanea de casos de implanta o e consolida o de programas educacionais em grandes empresas e grupos, relatadas por pesquisadores, consultores e também pelos próprios responsáveis pela gest o de talentos e seu desenvolvimento nas empresas.
Imprensa e mundos do trabalho: a singularidade da imprensa operária no Amazonas (1890-1920)
Luciano Everton Costa Teles
Revista Mundos do Trabalho , 2011, DOI: 10.5007/1984-9222.2011v3n5p186
Abstract: http://dx.doi.org/10.5007/1984-9222.2011v3n5p186 O presente artigo procura elucidar a rela o entre História e Imprensa, enfatizando a Imprensa Operária como objeto-fonte de estudos, revelando as potencialidades desta rela o para a produ o do conhecimento histórico. Focaliza também algumas quest es presentes em suas páginas, destacando uma configura o específica e assuntos relacionados e direcionados ao universo operário.
A ma e o biscoito da sorte
Costa Luciano da Fontoura
Revista Brasileira de Ensino de Física , 2003,
Abstract: Após motivarmos o método científico como a maneira mais promissora de aquisi o de conhecimento e previs o, discutimos como o mesmo estará sendo revisto sob a perspectiva de aplica es em biologia.
Hub-Based Community Finding
Luciano da Fontoura Costa
Physics , 2004,
Abstract: This article presents a hub-based approach to community finding in complex networks. After identifying the network nodes with highest degree (the so-called hubs), the network is flooded with wavefronts of labels emanating from the hubs, accounting for the identification of the involved communities. The simplicity and potential of this method, which is presented for direct/undirected and weighted/unweighted networks, is illustrated with respect to the Zachary karate club data, image segmentation, and concept association. Attention is also given to the identification of the boundaries between communities.
On the Separability of Attractors in Grandmother Dynamic Systems with Structured Connectivity
Luciano da Fontoura Costa
Physics , 2007,
Abstract: The combination of complex networks and dynamic systems research is poised to yield some of the most interesting theoretic and applied scientific results along the forthcoming decades. The present work addresses a particularly important related aspect, namely the quantification of how well separated can the attractors be in dynamic systems underlined by four types of complex networks (Erd\H{o}s-R\'enyi, Barab\'asi-Albert, Watts-Strogatz and as well as a geographic model). Attention is focused on grandmother dynamic systems, where each state variable (associated to each node) is used to represent a specific prototype pattern (attractor). By assuming that the attractors spread their influence among its neighboring nodes through a diffusive process, it is possible to overlook the specific details of specific dynamics and focus attention on the separability among such attractors. This property is defined in terms of two separation indices (one individual to each prototype and the other considering also the immediate neighborhood) reflecting the balance and proximity to attractors revealed by the activation of the network after a diffusive process. The separation index considering also the neighborhood was found to be much more informative, while the best separability was observed for the Watts-Strogatz and the geographic models. The effects of the involved parameters on the separability were investigated by correlation and path analyses. The obtained results suggest the special importance of some measurements in underlying the relationship between topology and dynamics.
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