20 research outputs found

    Identidade(s) e liberdade de agência feminina: contribuições da economia social

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    The social economy is seen as the study of ethics and social relations behind economic behavior, institutions, organizations, theory and policy. This article examines the issues relating to the concept of social economy and the contributions that this brings to the themes of social identity and woman‟s free agency. The research problem is: What are the contributions of so-called social economy identity and free agency? The social economy has a decisive importance in involving their role in the promotion of justice and social equity. Social economists ignore the interconnections between human beings and the social system. This subject converges to the applicability of multiple and diverse value judgments, with a view to examine the alternatives for female agency freedom issues.A economia social é tida como o estudo das relações éticas e sociais do comportamento econômico, das instituições, das organizações, da teoria econômica e da política. O presente artigo analisa as questões relativas ao conceito de economia social e as suas contribuições para as temáticas da identidade dos indivíduos e da liberdade de agência feminina. O problema de pesquisa é: Quais são as contribuições da chamada economia social para identidade e liberdade de agência feminina? A economia social possui uma importância decisiva no que envolve o seu papel na promoção da justiça e da equidade social. Os economistas sociais não ignoram as interconexões entre os seres humanos e o sistema social. Este assunto converge para a aplicabilidade de múltiplos e diversos juízos de valor, numa perspectiva a examinar as soluções alternativas para as questões de liberdade de agência feminina.

    An observational study of dental abnormalities in the primary teeth

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    Introduction: Pregnancy and early childhood are the most critical phases with regard to biological, cognitive, emotional, and social development. Adverse events in these periods of life may be related to alterations in dental development, including alterations in size, shape and mineralization. Objective: To evaluate the frequency of dental abnormalities and the factors associated with the developmental defects of the enamel in primary teeth. Material and methods: Information about family income, maternal education level, pretermbirth, and hospitalization history up to 11 months of age were collected from the dental records of 544 children. Clinical examination of the children was performed to investigate abnormalities of tooth number, form, size, and developmental defects of the enamel (DDE). Data were analyzed using χ2 test and Poisson regression. Results: In all, 544 children were evaluated. Sixty children (11.0%) presented some alterations in the primary teeth; and 7.5% showed DDE. Children born preterm were 3.17 times more likely to develop DDE in primary teeth (prevalence ratio – PR = 3.17, 95% confidence interval– 95%CI 1.26–7.98, p = 0.014). Among the alterations of number, 1.7% was hypodontia, and among the abnormalities of shape, 1.7% was fused teeth. Conclusion: The prevalence of dental anomalies in this sample was, in general, expressive. Children born preterm were more vulnerable to present developmental defects of the enamel.Introduction: Pregnancy and early childhood are the most critical phases with regard to biological, cognitive, emotional, and social development. Adverse events in these periods of life may be related to alterations in dental development, including alterations in size, shape and mineralization. Objective: To evaluate the frequency of dental abnormalities and the factors associated with the developmental defects of the enamel in primary teeth. Material and methods: Information about family income, maternal education level, pretermbirth, and hospitalization history up to 11 months of age were collected from the dental records of 544 children. Clinical examination of the children was performed to investigate abnormalities of tooth number, form, size, and developmental defects of the enamel (DDE). Data were analyzed using χ2 test and Poisson regression. Results: In all, 544 children were evaluated. Sixty children (11.0%) presented some alterations in the primary teeth; and 7.5% showed DDE. Children born preterm were 3.17 times more likely to develop DDE in primary teeth (prevalence ratio – PR = 3.17, 95% confidence interval– 95%CI 1.26–7.98, p = 0.014). Among the alterations of number, 1.7% was hypodontia, and among the abnormalities of shape, 1.7% was fused teeth. Conclusion: The prevalence of dental anomalies in this sample was, in general, expressive. Children born preterm were more vulnerable to present developmental defects of the enamel

    Turismo, cultura, patrimonio cultural y desarrollo en Curuçá (Pará, Brasil): ¿Una relación posible?

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    Neste artigo, abordam-se as relações entre desenvolvimento, sustentabilidade, turismo, cultura e preservação do patrimônio cultural no município de Curuçá-PA. Nesta direção, objetiva-se refletir a respeito das contribuições do turismo e da cultura para a preservação do patrimônio cultural local, para a dinamização da economia e o desenvolvimento da qualidade de vida dos munícipes, notadamente numa conjuntura de mudança que a administração municipal atual começa a viabilizar. No que se refere à metodologia utilizada, priorizou-se a técnica do survey, por meio da qual foram entrevistados gestores públicos e pessoas locais, bem como fez-se um levantamento da documentação e da bibliografia pertinentes. Esta proposta de análise surge da problemática identificada como descuido de elementos históricos e culturais importantes: à vulnerabilidade do patrimônio local e, ao mesmo tempo; a um potencial turístico pouco explorado.En este artículo, se abordan las relaciones entre desarrollo, sustentabilidad, turismo, cultura y preservación del patrimonio cultural en el municipio de Curuçá, Pará, Brasil. En esta dirección, se objetiva reflejar al respecto de las contribuciones del turismo y de la cultura para la preservación del patrimonio cultural local, para la dinamización de la economía y el desarrollo de la calidad de vida de los habitantes, notablemente en una coyuntura de cambio que la administración municipal actual comienza a viabilizar. En lo que se refiere a la metodología utilizada, se priorizó la técnica del survey, por medio de la cual fueron entrevistados gestores públicos y personas locales, así como se hizo un levantamiento de documentación y bibliografía pertinentes. Esta propuesta de análisis surge de la problemática identificada como descuido de elementos históricos y culturales importantes: a la vulnerabilidad del patrimonio local y, al mismo tiempo; a un potencial turístico poco explotado

    Obtenção de biomassa microalgal tolerante a herbicidas para produção de biofertilizante: uma revisão baseada na metodologia Methodi ordinatio

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    The increasing growth in scientific publications makes researching more extensive in relation to the selection of papers to support the writing, which is time-consuming and requires criteria to effectively list the most important references. Microalgae have been studied by researchers in several technological fields in the development of products, because they have easy physiological adaptability, high productivity in biomass and low cost of cultivation. Among the applications of microalgae, it is mentioned in this work the production of biofertilizers which soften the effects caused by chemical agents to plants and the environment, aiming at the production of organic food, one of the great current challenges. The objective of this work is to use a systematic review of the literature on the cultivation of herbicide resistant microalgae using Methodi Ordinatio, which assists the search, selection, collection and classification of scientific articles. Initially, research was done on the data bases Scopus, Science direct and Web of Science, using the keywords microalgae and herbicide. The results were imported to the Mendeley bibliographic reference manager. Subsequently, the In Ordinatio index was applied, an equation that works with the three most important factors in a scientific article: the impact factor, the year of publication and the number of citations of the research. This equation turns it is possible to classify the most important articles in the area of herbicide-tolerant microalgae and note the importance of this method, which made it possible to find current studies and demonstrate the relevance of this research theme. In order to show the dynamics of the methodology, a research with the theme is presented, comprising works from years 2008 to 2018. The results indicate that the methodology is effective in relation to the objectives proposed, and the most relevant work on the cultivation of herbicide resistant microalgae are used to construct the scenario in this theme.info:eu-repo/semantics/publishedVersio

    Obtaining microalgae biomass tolerant to herbicides for production of bio-fertilizers: a review based on methodi ordinatio methodology

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    The objective of this work was to use a systematic review of the literature on the cultivation of microalgae resistant to herbicide using the Method Methodi Ordinatio, which assists the search, selection, collection and classification of scientific articles. Initially, research was done on the databases Scopus, Science Direct and Web of Science, using the keywords “microalgae” and “herbicide”. The results were imported to the Mendeley bibliographic reference manager. Subsequently, the index In Ordinatio index was applied, which works with the three most important factors in a scientific article: The impact factor, the year of publication and the number of citations of the research. This index turns it is possible to classify the most important articles in the area of herbicide-tolerant microalgae and note the importance of this method, which made it possible to find current studies and demonstrate the relevance of this research theme. In order to show the dynamics of the methodology, a research with the theme is presented, comprising works from years 2008 to 2018. The results indicate that the methodology is effective in relation to the objectives proposed, and the most relevant work on the cultivation of herbicide resistant microalgae are used to construct the scenario in this theme.info:eu-repo/semantics/publishedVersio

    Glutathione production using industrial by-products in simple batch and fed-batch processes

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    Orientadores: Ranulfo Monte Alegre, Lucielen Oliveira dos SantosDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de AlimentosMestradoMestre em Engenharia de Alimento

    Produção de lipídeos por Lipomyces starkeyi : estratégia para obtenção de alta densidade celular a partir de xilose a glicose

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    Orientador: Telma Teixeira FrancoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia QuímicaResumo: Neste trabalho foram desenvolvidos estudos visando o estabelecimento de um processo de produção de lipídeos microbianos a partir de fontes renováveis, particularmente xilose, carboidrato derivado do processo de hidrólise de bagaço de cana-de-açúcar. Foi utilizada a levedura oleaginosa Lipomyces starkeyi DSM 70296, previamente selecionada no Laboratório de Engenharia Bioquímica, Biorefino e Produtos de Origem Renovável (LEBBPOR). A partir dos resultados preliminares em frascos agitados, partiu-se para estudos de batelada alimentada em biorreator (1,3 a 3L). Foram estudadas diferentes estratégias de alimentação, sendo que em batelada alimentada repetida, foram encontradas as maiores concentrações de células (85,4 g/L) e de lipídeos (41,8 g/L). Posteriormente foram estudados modos de operação em processos contínuos em meio sintético e meio contento o hidrolisado hemicelulósico (H-H). As maiores produtividades de células (0,443 g/g) e de lipídeos (0,236 g/g) foram encontradas em cultivo contínuo a 0,03h-1. Na vazão específica de alimentação de 0,06 h-1 foram obtidas as maiores produtividades de células (0,600 g/L.h) e de lipídeos (0.288 g/L.h). Análises de cromatografia em fase gasosa dos diferentes cultivos feitos revelaram que os principais constituintes deste complexo são os ácidos graxos de cadeia longa, como o ácido palmítico (C16:0), ácido esteárico (C18:0), ácido oleico (C18:1) e ácido linoleico. Foi estimado o número de cetano em torno de 61, muito próximo do biodiesel de palma. Também foram feitos estudos de balanço de massa e de energia em cultivo batelada alimentada utilizando somente xilose como fonte de carbono. O valor de calor de combustão (Qc) de 25,7 kJ/g obtido após 142 h de cultivo representa aproximadamente 56% do conteúdo energético do óleo diesel (45,4 kJ/g), indicando o potencial da L. starkeyi para biodiesel. Cultivos contínuos subsequentes foram feitos para a compreensão do processo de acúmulo de lipídeos, utilizando a ferramenta estatística de reconciliação de dados para melhorar os dados experimentais obtidos em quimiostato, reduzindo os erros experimentais para posterior cálculo de análise de fluxos metabólicos (MFA). Nesse sentido, os lipídeos produzidos por L. starkeyi apresentam relevante importância do ponto de vista acadêmico e industrial, podendo ser utilizados como matéria-prima para biodiesel e indústria oleoquímicaAbstract: Studies attempting the establishment of a microbial lipid production process from renewable resources, mainly xylose, were developed. This pentose, obtained from sugar cane bagasse hydrolysis. The oleaginous yeast Lipomyces starkeyi DSM 70296, previously selected at the Laboratory of Biochemical Engineering, Biorefining and Products from Renewable Sources (LEBBPOR), was used throughout this thesis. After preliminary studies in shake flasks, we started fed-batch studies in fermentor (1.3 to 3L). Among the strategies studied, the highest cell mass and lipid concentrations reached up to 85.4 and 41.8 g/L, respectively, when repeated fed?batch strategy was applied. Subsequently, continuous processes were studied in synthetic medium and media containing hemicellulosic hydrolysate (H-H). The highest overall cell mass (0.443 g/g) and lipid yields (0.236 g/g) were achieved at dilution rate of 0.03 h-1. At dilution rate of 0.06 h-1, were obtained the highest productivities of cell mass (0.600 g/L.h) and lipids (0.288 g/L.h). Gas chromatography of esterified lipids revealed that the major constituents of this complex are long-chain fatty acids, such as palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1), and linoleic acid (C18:2) with an estimated cetane (around 61) very close to the palm biodiesel. Also have been studies of mass and energy balances from fed-batch cultivation using xylose as sole carbon source. The combustion heat (Qc) value 25.7 (kJ/g) obtained after 142 h of fed-batch cultivation, represents approximately 56% of the energy content of diesel oil (45.4 kJ/g), indicating the potential of L. starkeyi for biodiesel. Continuous cultures were made subsequently to understanding the process of lipid accumulation using a statistical tool for data reconciliation was used to improve the experimental data obtained in chemostat culture reducing the experimental errors for subsequent calculation of metabolic flux analysis (MFA). In this sense, lipids produced by L. starkeyi have relevant importance of academic and industrial point of view, as feedstock for biodiesel and oleochemical industry applicationsDoutoradoProcessos em Tecnologia QuímicaDoutora em Engenharia Quimic
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