1000 resultados para Culturas microbianas mistas
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Tabla de contenidos: Pensar históricamente la Historia de los procesos educativos. Perspectivas metodológicas y enfoques de enseñanza y aprendizaje / Talia Meschiany. Historia de la Educación General. Representaciones y diálogos con y entre imágenes / Marcela Ginestet. Formar hombres y cristianos: la educación entre el Humanismo y la Reforma Protestante / Marcela Ginestet, Liliana Paredes. La formación del Estado centralizado: entre el juego de los cortesanos y el aporte de los humanistas / Marcela Ginestet. Regulación y disciplinamiento de los cuerpos en la conformación de la cultura escolar / Marcela Ginestet, Liliana Paredes. Artesanos, científicos y pedagogos en el siglo XVII / Marcela Ginestet. Legados de la Ilustración en la sociedad contemporánea / Talia Meschiany. La educación bajo los regímenes nazifascistas / Talia Meschiany.
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Reseña: CÁTEDRA, María y DEVILLARD, Marie José. (eds.). 2014. Saberes culturales. Homenaje a José Luis García García. Barcelona: Bellaterra.
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Com o objetivo de contribuir para as discussões acerca do uso conjunto de métodos qualitativos e quantitativos na pesquisa em Administração, este artigo apresenta uma análise bibliométrica dos estudos publicados na Revista de Administração de Empresas da Fundação Getúlio Vargas (RAE), na Revista de Administração Contemporânea (RAC) e na Revista de Administração da Universidade de São Paulo (RAUSP), no período de 2010 a 2014, dimensionando a frequência de uso de abordagens mistas como metodologia de pesquisa e como tal prática está caracterizada em estudos publicados nesse campo no Brasil. Os resultados indicam ser o índice de uso de abordagens mistas ainda pequeno em relação ao uso isolado de métodos qualitativos e quantitativos, denotando uma visão dicotômica envolvendo os paradigmas positivista e interpretativista na prática de pesquisa na disciplina. Conclui-se com a sugestão de novas investigações como, por exemplo, identificar entre os próprios pesquisadores as razões pelas quais utilizam ou não abordagens mistas e as dificuldades implicadas, visando à continuidade do debate sobre os métodos de pesquisa empregados na ciência da Administração.
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Ahora hay una tendencia de utilizar residuos orgánicos como materia prima para la generación de nuevos productos. Los hongo filamentosos pueden aprovechar los azúcares residuales de las cascaras de fruta y la presencia de pectina en estos residuos , estimula la formación de pectinasas. Estudia la factibilidad de extracción de pectinasas microbianas, luego se encontró la concentración óptima de fuente de corbono y las condiciones operacionales para obtener mejores rendimientos
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O recreio no jardim-de-infância é um dos poucos espaços que resta para que as crianças se encontrem e façam aquilo em que verdadeiramente são especialistas: brincar! Este deve ser um espaço e um tempo valorizados, pois é aí que este grupo constrói as culturas que o identificam e o distinguem como grupo geracional, distinto dos demais. Esta construção de culturas faz-se através das interações inerentes ao ato de brincar. Nesta sociedade globalizada, a competição e o sucesso académico fazem parte cada vez mais cedo da vida das crianças. Assim, é importante devolver-lhes estes espaços e tempos que lhes permitam brincar e jogar, uma vez que estas ações se assumem como indispensáveis para o seu bem-estar e para o desenvolvimento saudável das suas habilidades físicas, cognitivas, emocionais e sociais.
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La presente investigación es realizada en el marco de la Maestría en Administración de Negocios, con el fin de poner en práctica algunos conceptos teóricos adquiridos en este programa de posgrado, pero también con el ánimo particular de contribuir en la búsqueda de transformar el contexto empresarial, en el que como profesional se quiere impactar -- El objetivo principal del documento es el de presentar la caracterización de la cultura organizacional, y sus efectos, a partir de la fusión realizada entre Rentokil Initial y Fumighar S.A.
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The increasing advancement of agriculture makes providing adequate conditions for the growth and development of plants is the primary purpose of soil management systems. Much of the success of PD is attributed to cultural remains left by cover crops that do not require high nitrogen inputs and can thus be used to reduce nitrogen input in the agro- ecosystem. The nitrogen is one of the elements applied in agriculture, it is absorbed in higher quantities and limiting the yield of grain crops such as corn. Thus, there has been the influence of the no-till and conventional tillage combined with different crops of winter cover and bare soil when in succession to corn, on mineral nitrogen content. The experimental work was made at the experimental station of the Agronomic Institute of Paraná - Iapar. The implemented design was blocks at random split plot with three replications in factorial 6 x 2 x 3 x 5. The main plots were as treatment, beyond the bare soil, 5 winter species (ryegrass, vetch, vetch + oat, oat and radish), while in the subplots were used two tillage systems (No-till and conventional tillage). Three collections made were (before management, the urea before and after the urea), these being held in 5 depths (0-5, 5-10, 10-20, 20-40 and 40-60 cm). So a layer 0-5 cm and a que presents increased amount to NH4 + ion. The use of associated PD system in the presence of winter cover crops decreased as NO3 - losses in soil profile.
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The incidence of toxic cyanobacterial blooms is one of the important consequences of eutrophication in aquatic ecosystems. It is a very common phenomenon in reservoirs and shrimp ponds in the State of Rio Grande do Norte (RN), Brazil. Cyanobacterias produce toxins which can affect aquatic organisms and men trough the food chain. Aiming to contribute to the studies of cyanobacterias in RN, we propose: a) to evaluate the toxicity of isolated cyanobacterias in important fresh-water environments; and b) to verify the effects of both natural and cultured blooms occurred in reservoirs for human supply and in the cladoceran Ceriodaphnia silvestrii. This study was carried out using samples of natural blooms occurred between March and October of 2004 in Gargalheiras Dam (08º L e 39º W), in July of 2004 in Armando Ribeiro Gonçalves Dam (06o S e 37o W) and in commercial shrimp ponds (Litopenaeus vannamei) located in fresh-water environments. The samples were collected with plankton net (20µm.) for identification, isolation and obtaining of phytoplanktonic biomass for liophilization and later toxicity bioassays. The toxicity of cultured samples and natural blooms was investigated through bioassays in Swiss mice. Quantification of cyanobacteria in samples was conducted following the Ütermol method, with 300mL samples fixed with lugol. The toxicity test with Ceriodaphnia silvestrii followed ABNT, 2001 recommendations, and were accomplished with natural hepatotoxic bloom s samples and cultured samples of both non-toxic and neurotoxic C. raciborskii. In this test, five newborns, aged between 6 and 24 hours, were exposed to different concentrations (0 a 800 mg.L-1) of crude cyanobacterial extracts during 24 and 48 hours. Three replicates were used per treatment. The pH, temperature and dissolved oxygen at the beginning and after 24 and 48hours from the test were measured. We estimated the CL50 through the Trimmed Spearman-Karber method. The blooms were constituted by Microcystis panniformis, M. aeruginosa, Anabaena circinalis, Cylindrospermopsis raciborskii and Planktothrix agardhii, producers of mycrocistin-LR confirmed with HPLC analysis. Samples of hepatotoxic blooms registered toxinogenic potential for C. silvestrii, with CL50-24h value of 47.48 mg.L-1 and CL5048h of 38.15 mg.L-1 for GARG samples in march/2005; CL50-24h of 113,13 mg.L-1 and CL5048h of 88,24 mg.L-1 for ARG July/2004; CL50-24h of 300.39 mg.L-1 and CL50-48h of 149.89 mg.L-1 for GARG October/2005. For cultured samples, values of CL50-24h and CL50-48h for C. raciborskii toxic strains were 228.05 and 120.28 mg.L-1, respectively. There was no mortality of C. silvestrii during the tests with non-toxic C. raciborskii strain. The toxicity test with C. silvestrii presented good sensitivity degree to cyanotoxins. The toxicity of natural hepatotoxic blooms samples (microcystins) and cultured neurotoxic saxitoxins producer samples analyzed in this study give us strong indications of that toxin s influence on the zooplanktonic community structure in tropical aquatic environments. Eleven cyanobacteria strains were isolated, representing 6 species: Anabaenopsis sp., Cylindrospermopsis raciborskii, Chroococcus sp., Microcystis panniformis, Geitlerinema unigranulatum e Planktothrix agardhii. None presented toxicity in Swiss mice. The strains were catalogued and deposited in the Laboratório de Ecologia e Toxicologia de Organismos Aquáticos (LETMA), in UFRN, and will be utilized in ecotoxicológical and ecophysiological studies, aiming to clarify the causes and control of cyanobacterial blooms in aquatic environments in RN. This state s reservoirs must receive broader attention from the authorities, considering the constant blooms occurring in waters used for human consumption
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Due to the high supply and its attractive cost, the poultry litter has been used in the southwestern region of Parana to the improvement of soil fertility seeking greater production of grains and pastures. However, the use without technical knowledge can minimize the benefits of poultry litter or even cause undesirable effects on soil, environmental pollution and also productivity losses in the used crops. The objective of this study was to evaluate the influence of different times of poultry litter application, predating the winter crop, associated with increasing levels, about soil chemical properties, release of nutrients and crop performances in four consecutive years (2011-2014). In the first three years the experimental design was randomized blocks with a split plot system and four replications. In the main plots were tested four poultry litter application times preceding the wheat production: 0, 15, 30 and 45 days before sowing (DAS); in the subplots were applied four poultry litter levels (wet basis): 0, 4, 8 and 12 Mg ha-1. Last year one more subdivision of plots was done, evaluating the use or not of nitrogen in coverage in wheat, at a dose of 100 kg N ha-1. The wheat cultivar used in the four years was the BRS 220. In three years it was evaluated the residual effect on soybean production (cultivar - BMX Turbo RR) and in one year on the beans. The chemical soil attributes were evaluated at four depths 0-2,5cm, 2,5-5cm, 5-10cm and 10-20cm, and also the rate of decomposition and nutrient release of poultry litter and the crop productivity. The different times of application concerning the poultry litter had little influence on the studied variables, demonstrating that the producer does not need to have a specific date (before planting) to the application of poultry litter. Potassium was fully released 60 days after the allocation of litter bags into the field; for nitrogen and phosphorus the release was slower. The use of increasing levels of poultry litter increased the levels of various soil elements, highlighting the potassium which reached 20 cm deep in the second year of evaluation. The increase in pH and in the base saturation occurred only in the upper layers, while the phosphorus reached 10 cm deep in the third year of the study. It was observed increased pH and base saturation. The use of increasing doses of poultry litter contributed to the wheat plant nutrition, significantly increasing the weight of a thousand grains, and the grain yield of wheat in all the evaluated years; the nitrogen fertilization in coverage also had significant effect for the fourth evaluated year. Also there was a significant response from the residual effect of poultry litter for crops planted in summer for both soybeans and beans.
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A opção por um modelo de organização da formação contínua assenta em pressupostos teóricos e políticos sobre a formação e sobre a profissionalidade docente, mas também sobre a escola e os processosde mudança. Este livro explicita os diferentes modelos de organização da formação contínua de professores, situando-a entre a pessoa-professor e a organização-escola. Perspectivando o aperfeiçoamento profissional e o desenvolvimento organizacional como finalidades da formação contínua, os estudos aqui reunidos evidenciam luzes e sombras do sistema vigente e problematizam a inserção da escola na organização da formação.
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Relatório de Estágio apresentado à Escola Superior de Educação de Paula Frassinetti para obtenção do grau de Mestre em Educação Pré- escolar e Ensino do 1º Ciclo do Ensino Básico
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Para melhor compreender as dinâmicas que os jovens, muito em particular os portugueses, evidenciam em relação à participação e ao jornalismo – tentando escapar às visões reducionistas que meramente apontam para um afastamento –, lançámo-nos no desafio de melhor perceber os contextos de ação, os seus moldes e os seus propósitos. Estas matérias foram alvo de reflexão através de um estudo de caso longitudinal (2010-2012), realizado com 35 jovens com formas de participação diferenciadas, na intensidade e na diversidade, e com distintas proveniências sociais, culturais e económicas. O corpus permitiu melhor apreender e compreender contextos específicos e chegar a perfis quanto ao consumo de notícias (inclusive de política) e quanto à participação. As tipologias apontam para uma realidade complexa, em que são marcantes os fatores familiares, os contextos sociais mais vastos e a vontade individual. O Prefácio é assinado por Peter Dahlgren, professor emérito da Universidade de Lund, na Suécia, e um dos mais conceituados estudiosos das dinâmicas do jornalismo e das culturas cívicas, muito em especial entre os jovens. - See more at: http://www.livroslabcom.ubi.pt/book/128#sthash.fkPsR3Vv.dpuf
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O presente relatório trata a descrição e reflexão da intervenção desenvolvida na Prática de Ensino Supervionada em Educação Pré-escolar, nas valências de creche e jardim de infância. O trabalho que serviu de base ao relatório teve como objetivo compreender de que forma a interação entre crianças de diferentes idades contribui para o seu desenvolvimento. Assim, apresenta-se uma revisão de literatura sobre o tema do relatório, baseada nos trabalhos Vygotsky,e de Lilian Katz. A metodologia da investigação utilizada baseou-se na recolha e análise de dados sobre momentos de interação entre crianças de idades díspares e na aplicação de entrevistas às educadoras cooperantes. Durante a prática de ensino supervisionada promoveram-se momentos deste tipo de interação, através de visitas das crianças de creche à sala de jardim de infância. Os resultados obtidos através desta investigação revelam que a interação entre crianças de diferentes idades traz benefícios ao seu desenvolvimento, a diversos níveis; Supervised Teaching Practice in Preschool Education: Learning in mixed age groups in Preschool Education Abstract: The current report deals with the description and reflection of intervation developed in Supervised Teaching Practice in Preschool Education, in the nursery and kindergaten valences. The work that provided the basis of the report has as goal understand how the interaction between children of different ages contributes to their development. Therefore, presents a literature’s review about the report’s theme, based on Vygotsky’s and Lilian Katz’s works. The research methodology that supports this report was based on the collection and date analysis on interaction moments between different ages children and interviews application with cooperating teachers. During the supervised teaching practice, it was promoted interaction moments between different ages children’s, through visits of nursery children to kindergarten room. The obtained results through this research show that the different ages children’s interaction is beneficial to their development, at different levels.
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Este libro indaga por las culturas juveniles, noción ésta que permite interrogar críticamente apuestas teóricas surgidas en Europa y otras latitudes, que están impregnadas de sus realidades e historias, pero que no necesariamente son útiles para las lecturas de las realidades en la región latinoamericana y caribeña. El libro recorre, entonces, la definición de cultura juvenil y estilos juveniles como nociones variables y dinámicas, que los estudios de juventud han tendido a posicionar como clave ineludible de lectura de lo juvenil.
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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Educação, Programa de Pós-Graduação em Educação, 2015.