10 research outputs found
A descentralização da ação governamental no Brasil dos anos noventa: desafios do ambiente polĂtico-institucional
The family's role as a support network for people living with HIV/AIDS: a review of Brazilian research into the theme
Synthesis of Photoactive Materials by Sonication: Application in Photocatalysis and Solar Cells
InterdependĂȘncia federativa na polĂtica de saĂșde: a implementação das Unidades de Pronto Atendimento no estado do Rio de Janeiro, Brasil
Baixo peso e dependĂȘncia funcional em idosos institucionalizados de UberlĂąndia (MG), Brasil
Sand flies (Diptera, Psychodidae, Phlebotominae), vectors of Leishmania protozoa, at an Atlantic Forest Conservation Unit in the municipality of NĂsia Floresta, Rio Grande do Norte state, Brazil
PrevalĂȘncia e fatores de risco para tabagismo em adolescentes Prevalence and risk factors for smoking among adolescents
OBJETIVO: O tabagismo Ă© uma das principais causas de enfermidades evitĂĄveis e incapacidades prematuras. Nesse sentido, realizou-se estudo com o objetivo de medir a prevalĂȘncia e estudar fatores de risco associados ao tabagismo nos adolescentes. MĂTODOS: A partir de um delineamento transversal de base populacional, estudou-se uma amostra representativa de 1.187 adolescentes de 10 a 19 anos, da zona urbana de Pelotas, sul do Brasil. Todos os adolescentes da amostra, de cada domicĂlio, foram entrevistados por meio de questionĂĄrio prĂ©-codificado, individual e confidencial. Utilizou-se o teste de Kaplan-Meier para anĂĄlise da curva de sobrevida. RESULTADOS: A prevalĂȘncia de tabagismo na amostra foi de 12,1% (IC95% 10,3%-14%). As prevalĂȘncias foram similares para os sexos femininos e masculinos. Os fatores de risco para tabagismo na anĂĄlise multivariada, por regressĂŁo logĂstica, foram: maior idade, odds ratio (OR) de 28,7 (11,5-71,4), irmĂŁos mais velhos fumantes, OR de 2,4 (1,5-3,8), trĂȘs ou mais amigos fumantes, OR de 17,5 (8,8-34,8) e baixa escolaridade OR de 3,5 (1,5-8,0). CONCLUSĂES: A prevalĂȘncia de tabagismo na adolescĂȘncia mostrou-se alta, na cidade de Pelotas. Campanhas antitabĂĄgicas devem ser direcionadas Ă comunidade e Ă famĂlia tendo o adolescente como alvo. Medidas legais adotadas pelo governo sĂŁo importantes para impedir o acesso dos adolescentes ao cigarro.<br>OBJECTIVE: Tobacco smoking is one of the main causes of preventable disease and premature disability. Th estudy was aimed at measuring smoking prevalence and related risk factors among adolescents. METHODS: A population-based cross-sectional study was carried out in a representative sample of 1,187 adolescents aged 10 to 19 years living in the urban area of Pelotas, southern Brazil. All adolescents were interviewed separately using a confidential coded questionnaire. Kaplan-Meier test was performed for survival curve analysis. RESULTS: The overall smoking prevalence rate in the sample was 12.1% (95% CI 10.3%-14%). Boys and girls had similar prevalence rates. The following were the risk factors for smoking found in the multivariate logistic regression analysis: older age (OR=28.7; 95% CI 11.5-71.4), older smoking siblings (OR=2.4; 95% CI 1.5-3.8), three or more smoking friends (OR=17.5; 95% CI 8.8-34.8) and low schooling (OR=3.5; 95% CI 1.5-8.0). CONCLUSIONS: The prevalence of smoking among adolescents in the city of Pelotas was high. Campaigns against tobacco use should be aimed at the community and families, targeting adolescents. The government must adopt legal actions in order to prevent adolescents to have access to to smoking
Effect of the Composition of Mesoporous TitaniaâSilica Oxide Photocatalysts on Their Activity During the Destruction of Methylene Blue in Aqueous Solutions
Functionality, school participation and quality of life of schoolchildren with cerebral palsy
PolymerâCeramic Nanohybrid Materials
This review is dedicated to nanohybrid materials consisting of a polymer-based matrix and a disperse nanoscaled ceramic phase. Different preparation techniques for the synthesis of polymerâceramic nanohybrid materials will be presented, such as blending techniques, solâgel processing, in-situ polymerization, and self-assembly methods. Selected structural and functional properties of polymerâceramic nanohybrid materials will be highlighted and discussed within the context of their dependence on parameters such as the homogeneity of the dispersion of the ceramic throughout the polymer matrix, the particle size of the ceramic phase, and the polymerâceramic interface. Moreover, some advanced applications of polymerâceramic nanohybrid materials will be addressed and compared with their polymeric counterparts