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Search Results: 1 - 10 of 51519 matches for " Selma Selva Silva "
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Respuesta inmune ante la vacuna Heberbiovac-HB en crías de rata con crecimiento intrauterino retardado
Selva Silva,Selma Susel; Tomé López,Orlando; Cruz Alvarez,Yainé;
Revista Cubana de Investigaciones Biom??dicas , 2008,
Abstract: we proposed to quantify the intensity of the immune response to the heberbiovac-hb vaccine in offsprings of normal rats and with iugr. two treatment schemes were used, a group at 0-5-10 days, and another at 0-11-22 days. seven days after the last dose, blood was extracted and the antibody titer was quantified in each offspring. the results showed that 100 % of the offsprings vaccinated with the scheme 0-11-22 seroconversed compared with 87.5 % in the scheme 0-5-10. it was also proved that that the control group of the scheme 0-11-22 attained a higher percent of animals in the category of hyperresponders. it was concluded that the immune response in both groups have sufficient intensity to rise antibody titers, and that the offsprings under the scheme 0-11-22 respond with more intensity than those of the scheme 0-5-10.
Estudio morfométrico de los órganos de crías de rata con crecimiento intrauterino retardado
Cruz álvarez,Yainet; Tomé López,Orlando; Selva Silva,Selma; Cruz García,María A.;
Revista Cubana de Investigaciones Biom??dicas , 2007,
Abstract: it was our objective to check the morphometry of some internal organs in rats’ offsprings with retarded intrauterine growth by comparing them with a control group. the retarded intrauterine growth was induced by ligation of the uterine artery in both horns on the 16th day of gestation in sprague dawley rats. the offsprings are studied at birth, and on the 7th, 14th and 21st day. the weight and volume of the kidneys, liver, heart, lungs and intestine were verified. the weight and volume of the organs showed lower values compared with the control group in all the times studied. it was observed that the reduction of the blood flow in the last week of pregnancy produced organic alterations in the examined offsprings that were maintained until weaning.
Estudio morfométrico de los órganos de crías de rata con crecimiento intrauterino retardado Morphometric study of the organs of rats’ offsprings with retarded intrauterine growth
Yainet Cruz álvarez,Orlando Tomé López,Selma Selva Silva,María A. Cruz García
Revista Cubana de Investigaciones Biom??dicas , 2007,
Abstract: Se propuso comprobar la morfometría de algunos órganos internos en crías de rata con crecimiento intrauterino retardado, comparándolas con un grupo control. Se indujo el crecimiento intrauterino retardado, por ligadura de la arteria uterina en ambos cuernos en el día 16 de la gestación, en ratas de la línea Sprague Dawley; las crías son estudiadas al nacimiento, 7, 14 y 21 d. Se comprobó peso y volumen de: ri ones, hígado, corazón, pulmones e intestino. El peso y volumen de los órganos mostró valores inferiores con respecto al grupo control en todos los tiempos estudiados. Se observó que la disminución del flujo sanguíneo en la última semana de gestación produjo en las crías estudiadas alteraciones orgánicas que se mantienen hasta el destete. It was our objective to check the morphometry of some internal organs in rats’ offsprings with retarded intrauterine growth by comparing them with a control group. The retarded intrauterine growth was induced by ligation of the uterine artery in both horns on the 16th day of gestation in Sprague Dawley rats. The offsprings are studied at birth, and on the 7th, 14th and 21st day. The weight and volume of the kidneys, liver, heart, lungs and intestine were verified. The weight and volume of the organs showed lower values compared with the control group in all the times studied. It was observed that the reduction of the blood flow in the last week of pregnancy produced organic alterations in the examined offsprings that were maintained until weaning.
Estudio somatométrico de crías de rata con crecimiento intrauterino retardado desde el nacimiento hasta el destete Somatometric study of offsprings of rats with intrauterine growth retardation from birth to weaning
Orlando Tomé López,Yainet Cruz álvarez,Cristina Alfonso Zerquera,Selma Selva Silva
Revista Cubana de Investigaciones Biom??dicas , 2006,
Abstract: Se comprobaron las modificaciones de la somatometría posnatal temprana en crías de rata con crecimiento intrauterino retardado comparándolas con un grupo control. Se indujo el crecimiento intrauterino retardado, por ligadura de la arteria uterina en ambos cuernos en el día 16 de la gestación, en ratas de la línea Sprague Dawley, a las crías de ambos grupos, divididas en 4 subgrupos, se le tomó peso, talla y diámetros craneanos al nacimiento, 7, 14 y 21 d. Los resultados mostraron una disminución severa de peso, talla y diámetros craneanos al nacimiento en los fetos del grupo experimental. El peso se recuperó a los 14 d mientras que la talla y los diámetros craneanos no. Se observó que la disminución del flujo sanguíneo en la última semana de gestación produjo en las crías estudiadas alteraciones somatométricas que se mantienen hasta el destete. The modifications of early postnatal somatometry were proved in offsprings of rats with intrauterine growth retardation, comparing them with a control group. The intrauterine growth retardation was induced by ligation of the uterine artery in both horns on the 16th day of gestation in Sprague Dawley rats. The offsprings of both groups were divided into 4 subgroups. The weight, height and cranial diameters were measured at birth, 7, 14 and 21 days. The results showed a severe reduction of weight, height and cranial diameters at birth in the fetuses of the experimental group. The weight was recovered 14 days later, but the height and cranial diameters were not. It was observed that the decrease of blood flow in the last week of gestation caused somatosometric alterations in the studied offsprings that are maintained until weaning.
Respuesta inmune ante la vacuna Heberbiovac-HB en crías de rata con crecimiento intrauterino retardado Immune response to Heberbiovac-HB vaccine in offsprings of rats with intrauterine growth retardation
Selma Susel Selva Silva,Orlando Tomé López,Yainé Cruz Alvarez
Revista Cubana de Investigaciones Biom??dicas , 2008,
Abstract: Nos propusimos cuantificar la intensidad de la respuesta inmune a la vacuna Heberbiovac-HB en crías de ratas normales y con CIUR, se usaron dos esquemas de tratamiento, un grupo en los días 0-5-10 y otro en los días 0-11-22. Siete días después de la última dosis se realizó una extracción de sangre y se cuantificó el título de anticuerpos en cada cría. Los resultados muestran que el 100 % de las crías vacunadas con el esquema 0-11-22 seroconvirtieron contra el 87.5 % en el esquema 0-5-10, además se demostró que el grupo control del esquema 0-11-22 obtuvo un porciento mayor de animales en la categoría de hiperrespondedores. Se concluye que la respuesta inmune en ambos grupos tiene intensidad suficiente para levantar títulos de anticuerpos y que las crías donde se aplica el esquema 0-11-22 responden con más intensidad que las del esquema 0-5-10. We proposed to quantify the intensity of the immune response to the Heberbiovac-HB vaccine in offsprings of normal rats and with IUGR. Two treatment schemes were used, a group at 0-5-10 days, and another at 0-11-22 days. Seven days after the last dose, blood was extracted and the antibody titer was quantified in each offspring. The results showed that 100 % of the offsprings vaccinated with the scheme 0-11-22 seroconversed compared with 87.5 % in the scheme 0-5-10. It was also proved that that the control group of the scheme 0-11-22 attained a higher percent of animals in the category of hyperresponders. It was concluded that the immune response in both groups have sufficient intensity to rise antibody titers, and that the offsprings under the scheme 0-11-22 respond with more intensity than those of the scheme 0-5-10.
Estudio somatométrico de crías de rata con crecimiento intrauterino retardado desde el nacimiento hasta el destete
Tomé López,Orlando; Cruz álvarez,Yainet; Alfonso Zerquera,Cristina; Selva Silva,Selma; Cruz García,María A.;
Revista Cubana de Investigaciones Biom??dicas , 2006,
Abstract: the modifications of early postnatal somatometry were proved in offsprings of rats with intrauterine growth retardation, comparing them with a control group. the intrauterine growth retardation was induced by ligation of the uterine artery in both horns on the 16th day of gestation in sprague dawley rats. the offsprings of both groups were divided into 4 subgroups. the weight, height and cranial diameters were measured at birth, 7, 14 and 21 days. the results showed a severe reduction of weight, height and cranial diameters at birth in the fetuses of the experimental group. the weight was recovered 14 days later, but the height and cranial diameters were not. it was observed that the decrease of blood flow in the last week of gestation caused somatosometric alterations in the studied offsprings that are maintained until weaning.
Selenium Content in Blood of Donors from the North of Rio de Janeiro State, Brazil  [PDF]
Jaqueline Batista Silva, Karla Silva Ferreira, Selma Bergara Almeida, Laura Pessanha Duarte
Food and Nutrition Sciences (FNS) , 2012, DOI: 10.4236/fns.2012.39157
Abstract: Selenium is an element which participates in antioxidant enzymes. A medium and long term lack of such element is associated, mainly, with heart disease, joint and bone structure problems and thyroid activity. Selenium contents in blood reflect its ingestion and food content variation. It depends on soil characteristics, such as pH and selenium presence. There are few studies concerning selenium levels in food and blood in Brazil. Therefore, the objective of this research was to determine selenium content in a blood donor group in Rio de Janeiro state, conducted from December 2008 to March 2009. From the donated blood to Regional Blood Center of Campos dos Goytacazes, 4.0 mL were submitted to selenium analysis through atomic absorption spectrometry of hydride generation and organic matter oxidation wet basis with nitric and perchloric acid. Selenium content varied from 75 ± 16 ng·g-1 for females and 70 ± 21 ng·g-1 for males. There was no significant difference among selenium contents in blood from donors of different gender, age and residence. Seventy four percent of donors had selenium content in blood below 70 ng·mL-1, the lowest level for maximum selenoproteins production, according to the Nutritional Prevention Cancer.
Ensino de História hoje: errancias, conquistas e perdas
Silva, Marcos Ant?nio da;Fonseca, Selva Guimar?es;
Revista Brasileira de História , 2010, DOI: 10.1590/S0102-01882010000200002
Abstract: this article analyzes traditions of debate about the teaching of history in brazil since the 1964-1984 dictatorship. it discusses the changes, continuities, achievements and losses in the history of the discipline. it emphasizes the importance of school culture, the necessary continuity of the school as an institution and dialogue with non-school forms of education.
O ENSINO DE HISTóRIA EM ESCOLAS NO MEIO RURAL BRASILEIRO
Astrogildo Fernandes Silva Júnior,Selva Guimar?es Fonseca
Eccos Revista Científica , 2010,
Abstract: In this text are shown the results from the Master thesis "Knowledge and practices of the History teaching in rural schools (a study performed in the City of Araguari, MG, Brazil), developed during Master in Education in the Pos-graduate program in Education from Universidade Federal de Uberlandia (PPGE/UFU), articulated to the research project "Teacher formation, knowledge and practice of History teaching" supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico -CNPq. Here the objectives were to characterize history teaching in rural schools education in the last decades and to analyze the knowledge and curricular practices from the History teaching in rural schools. We concluded that the History teaching and education in the Brazilian rural area underwent transformation in the last decades, and the knowledge and practices are built during the education experience in schools that are multicultural spaces, where distinct subjects play.
Ecoturismo como contribui o à gest o de Unidades de Conserva o
Josangela da Silva Jesus,Vanice Santiago Fragoso Selva
Revista Nordestina de Ecoturismo , 2009, DOI: 10.6008/ess1983-8344.2009.001.0006
Abstract: O ecoturismo tem sido a modalidade do turismo que mais tem crescido, buscando nos espa os naturais levar a sociedade a ter um contato mais íntimo com a natureza e contribuindo para benefícios socioecon micos onde acontece. Visualizando isto, o presente estudo teve como objetivo analisar a contribui o do Ecoturismo e da Educa o Ambiental para a conserva o de áreas naturais, através das Unidades de Conserva o. Para atender ao objetivo, foi realizada uma revis o bibliográfica sobre Ecoturismo, Educa o Ambiental, Unidades de Conserva o e temas correlatos, além de estudos de caso onde o ecoturismo trouxe benefícios para UCs e comunidades vizinhas, a fim de embasar uma discuss o sobre o assunto. Percebeu-se a necessidade de aprofundamento de estudos nessa área, na tentativa de maximizar a contribui o da atividade ecoturística na gest o de UCs, conciliando o uso dos recursos naturais e culturais com a conserva o dos mesmos, apresentando-se como um instrumento de educa o ambiental para todos os atores envolvidos. De acordo com o Sistema Nacional de Unidades de Conserva o - SNUC, todas as UCs aceitam visita o, entretanto, cada uma limita de que forma esta visita o deve ser feita. O Parque Nacional é uma das categorias que permitem visita o para fins de recrea o e turismo ecológico, sendo a visita o um dos objetivos primários de sua existência. Desta forma, é possível justificar e, principalmente, incentivar o desenvolvimento ecoturístico em áreas protegidas, em especial na categoria Parque. A importancia do ecoturismo em áreas naturais protegidas é tal que está, cada vez mais, sendo considerado uma estratégia de gest o para tais áreas. Para isso, o ecoturismo deve estar a todo o momento relacionado aos seus objetivos de conserva o da área. Assim, as oportunidades recreativas precisam estar bastante definidas, de forma que os gestores conhe am os recursos recreacionais oferecidos e desenvolvam ferramentas para o manejo das visita es. Portanto, é fundamental que haja um planejamento integrado do ecoturismo em Unidades de Conserva o, a fim de oferecer à sociedade espa os de intera o com a natureza, ao mesmo tempo que à sensibiliza para a importancia da conserva o dos recursos naturais. Conclui-se com isso, que o ecoturismo em Unidades de Conserva o pode se constituir numa atividade sustentável, trazendo benefícios para a sociedade, para a gest o da área e para as comunidades vizinhas.
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