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Search Results: 1 - 10 of 21331 matches for " Jeniffer Dantas Ferreira "
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Exposi es ambientais e leucemias na infancia no Brasil: uma análise exploratória de sua associa o Exposiciones ambientales y leucemias en la infancia en Brasil: un análisis exploratorio de su asociación Environmental exposure and childhood leukemia in Brazil: an exploratory analysis of their association
Jeniffer Dantas Ferreira,Arnaldo Cézar Couto,Luciana Correia Alves,Maria do Socorro Pombo de Oliveira
Revista Brasileira de Estudos de Popula??o , 2012,
Abstract: O presente estudo objetiva explorar as rela es inaparentes que diversos fatores relativos às exposi es ambientais e características individuais existentes em nosso meio possam ter no processo de desenvolvimento da leucemia na infancia. A partir de um banco de dados clínicos e epidemiológicos obtido com estudo caso-controle de base hospitalar sobre fatores de risco para leucemias na infancia, foi realizada análise multivariada exploratória por meio do emprego de análise de componentes principais e análise fatorial. Esta investiga o é parte de um estudo multicêntrico nacional, que incluiu 292 casos de leucemias em crian as com idade entre 0 e 12 anos e 541 controles da mesma faixa etária, hospitalizados por causas n o neoplásicas em hospitais gerais próximos aos centros de origem dos casos. As informa es de exposi es ambientais selecionadas foram obtidas por meio de entrevistas realizadas com m es de casos e controles, por meio de questionário padronizado. O modelo com maior poder explicativo da variancia observada nos dados analisados foi da ordem de 52%, apresentando três fatores considerados mais adequados na predi o da leucemogênese na infancia, cada um incluindo variáveis com cargas fatoriais maiores que 0,6: fator "condi es relacionadas a exposi es químicas na gesta o", o qual explicou 20% da variancia final e incluiu as variáveis exposi o a pesticidas, exposi o a solventes e exposi o a tintas na gravidez; fator "hábitos de vida durante a gesta o", tendo explicado 17% da variancia e incluindo exposi o a tinturas de cabelo e cosméticos para alisamento; e fator "consumo de servi os de saúde durante a gesta o", explicando 15% da variancia e incluindo as variáveis tipo de parto (cesariana ou parto normal) e uso de radiografia na gesta o. Na análise de regress o logística, foi encontrada associa o estatisticamente significativa entre o desenvolvimento de leucemias na infancia e antecedentes de exposi o química materna durante a gesta o (OR=1,36; 95% IC=1,16-1,59) e consumo de servi os de saúde durante a gesta o (OR=1,27; 95%IC =1,08-1,49). Os resultados encontrados s o sugestivos quanto à contribui o conjunta das exposi es ambientais, e n o apenas individualizadas, no desenvolvimento das leucemias na infancia, sendo apoiados pelas evidências na literatura de que o processo de carcinogênese, em geral, e o da leucemogênese, em particular, resultem de efeitos de múltiplas muta es relacionadas a exposi es ambientais conjuntas. El presente estudio tiene como objetivo explorar las relaciones no aparentes que diversos factores relacionado
Tendência de mortalidade por leucemia infantil num período de 25 anos
Couto, Arnaldo Cézar;Ferreira, Jeniffer Dantas;Koifman, Rosalina Jorge;Monteiro, Gina Torres Rego;Pombo-de-Oliveira, Maria do Socorro;Koifman, Sérgio;
Jornal de Pediatria , 2010, DOI: 10.1590/S0021-75572010000500009
Abstract: objective: to analyze trends in childhood leukemia mortality in the state of rio de janeiro, brazil, between 1980 and 2006. method: gender-stratified leukemia mortality data for children aged < 15 years from 1980 to 2006 were retrieved from the brazilian mortality information system for the state of rio de janeiro. data were stratified by place of death (city of rio de janeiro proper, the state capital; rio de jane iro metropolitan region, excluding the capital; and rest of the state). leukemia deaths were defined according to death certificate icd-9 and icd-10 coding (for deaths occurring in 1980-1995 and 1996-2006, respectively). leukemia mortality rates were calculated by age and calendar year and age-adjusted to a standard world population. polynomial linear regression with a 5% significance level was used to evaluate mortality trends in the study regions. results: the three studied regions revealed similar trends, with a continuous downward pattern; the most substantial decline was detected in the municipality of rio de janeiro (city proper). in all studied areas, leukemia mortality was highest among males. conclusion: a downward trend in childhood leukemia mortality was detected throughout the state of rio de janeiro. the most pronounced reduction occurred in the state capital.
Rese a de "Las relaciones entre los sexos en el mundo prehispánico. Una contribución a la sociología del amor y del poder" de Laura Ibarra
Jeniffer Calleja
Espiral , 1999,
Abstract:
Rese a de "La prohibición de mentir" de Sergio Pérez Cortés
Jeniffer Calleja
Espiral , 1998,
Abstract:
Análise de mapas de represas publicados na web usando imagens orbitais CCD/CBERS no estado de Minas Gerais
Ferreira, Elizabeth;Dantas, Antonio A. A.;
Engenharia Agrícola , 2010, DOI: 10.1590/S0100-69162010000100012
Abstract: in this work some public databases from the world wide web (web) were used to find the area of the furnas and funil dams in minas gerais state. the purpose of this work was to compare the web public databases values and the real values obtained from the ccd camera images on board cbers2 and cbers2b satellites. the furnas dam area obtained from ccd/ cbers2b images, in 2008, was 1.138 km2, but in the consulted databases this area ranged from 1.182 to 1.503 km2. the dam of the funil, built in 2003, with a water surface of 29.37 km2 and an island with 1.93 km2 area, did not appear in atlas, geominas, igam and ibge databases. the results revealed some problems in the web public databases like differences in the areas of dams and discrepancies like any non-existing border lines and sometimes extra areas. this suggested that some brazilian web databases publishers have not been so far rigorous and the databases are outdated. the ccd/cbers images that are web public databases showed to be suitable data for determining and updating the published information.
Democracia interna y externa: el caso del Partido de la Revolución Democrática (PRD)
Jeniffer Calleja Rodríguez
Espiral , 2000,
Abstract: Este trabajo presenta un acercamiento a la teoría de los partidos políticos, concentrándose en el análisis de la libertad extra e intrapartidista, la cual insiste en el reconocimiento de una serie de derechos de los partidos en la legislación y de los militantes en los documentos oficiales del partido. Estas variables permiten valorar el caso mexicano frente al primer estatus de libertad, y el caso del Partido de la Revolución democrática frente al segundo estatus, tomado como objeto de estudio de este último por las características de su origen.
Tratamentos da compacta??o experimental do cólon maior de equinos com hidrata??o enteral, intravenosa e sene (Cassia augustifolia Vahl)
Filho, José Dantas Ribeiro;Alves, Geraldo Eleno Silveira;Dantas, Waleska de Melo Ferreira;
Revista Ceres , 2012, DOI: 10.1590/S0034-737X2012000100005
Abstract: the objective of this study was to investigate the effect of senna associated with intravenous fluid therapy (sen), isotonic polionic enteral solution (pe) and intravenous fluid therapy (iv) alone in the treatment of experimental large colon impaction in horses. fifteen horses with experimentally induced colon impaction were divided in three groups: group pe received the isotonic polionic enteral solution (8 ml kg-1 h-1,during 48 h); group sen received senna (20 mg kg-1, two doses with 24 h interval) + ringer lactate i.v. (10 ml kg-1 h-1 12 h-1, for two days); and group iv received ringer lactate i.v. (16 ml kg-1 h-1 12 h-1, for two days). the treatment protocol of group pe increased fecal hydration and helped remove impaction faster; however, prolonged intestinal hypomotility were observed. the treatment protocol sen normalized the intestinal motility faster; however the time required to remove impaction was higher and caused higher increase in abdominal distention and pain, as well as less capacity to revert dehydration. the treatment used for group iv removed the impaction, similarly to pe, and stimulated intestinal motility faster; however, it was the treatment that promoted less fecal hydration. the results showed that the treatments used in groups pe and iv were more efficient for the treatment of induced colon impaction in horses. the group sen was also efficient, but showed the most important adverse effects.
Cortisol sérico de equinos com compacta??o experimental no cólon maior tratados com hidrata??es enteral e parenteral
Ribeiro Filho, José Dantas;Dantas, Waleska de Melo Ferreira;Alves, Geraldo Eleno Silveira;
Revista Ceres , 2011, DOI: 10.1590/S0034-737X2011000300007
Abstract: serum cortisol was studied in horses with experimentally induced large colon impaction treated with isotonic polionic enteral solution (en) and intravenous fluid therapy (iv). blood samples were collected from ten animals divided into two groups of five horses. equines from group en received isotonic polionic enteral solution (8ml/kg/h/48h) and, from group iv received ringer lactate (16ml/kg/h/12h), during two days. large colon impaction provided higher serum cortisol in both groups (p<0.05). the isotonic polionic enteral solution (en) and the intravenous fluid therapy with ringer solution (iv) were efficients in reducing serum cortisol in horses with experimentally induced large colon impactions.
Elabora??o e valida??o da Escala de Depress?o para Idosos
Giavoni, Adriana;Melo, Gislane Ferreira de;Parente, Isabela;Dantas, Gabriela;
Cadernos de Saúde Pública , 2008, DOI: 10.1590/S0102-311X2008000500004
Abstract: the objective of this study was to develop and validate the depression scale for the elderly. an explanatory theoretical model was developed for depression, consisting of three categories: cognitive, affective, and somato-motor. the items elaborated thusly were submitted to semantic analysis and judges. the pilot instrument was applied to 340 subjects, 88% of whom were females, mostly with complete primary education (67.9%), and a mean age of 63.74 (sd = 6.87) years. the sample also responded to the beck depression index (bdi). validation of the scale was based on factor analyses (principal axis factoring) and analysis of the items' internal consistency (cronbach's alpha). multiple regressions evaluated the predictive power of the factors in the depression scale for the elderly on the final bdi score. scale validation demonstrated that the depression scale for the elderly is composed of two factors: cognitive-affective and somato-motor, which explain 53% of the bdi (convergent validity). one can thus state that the depression scale for the elderly consists of factors that assess different aspects of the depression construct (factor validity), which present internal consistency indices within the psychometric standards.
Estimativa da radia??o solar global para a regi?o de Lavras, MG
Dantas, Antonio Augusto Aguilar;Carvalho, Luiz Gonsaga de;Ferreira, Elizabeth;
Ciência e Agrotecnologia , 2003, DOI: 10.1590/S1413-70542003000600008
Abstract: the objective of this work was the determination of the "a" and " b" constants of the angstrom linear model in order to estimate the global solar radiation in lavras, mg. the work was carried out in the climatological station of lavras (ecp/inmet/ufla), at the federal university of lavras, from december 2001 to november 2002, through insolation daily data and global solar radiation daily records. the "a" and " b" constants, that express the atmospheric transmitance, were obtained by regression analysis of those data. the obtained equation, qg/qt = 0,23 + 0,49 presented a determination coefficient of 0,89. the results are smaller than those suggested by the recomendations that uses the local latitude. according to the results, its possible to indicate the values of 0,23 and 0,49 to be used as the "a" and " b" constants on the angstrom equation to estimate the global solar radiation in lavras, mg.
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