81 research outputs found

    Construção de equipamento para produção de ligas metalicas amorfas

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Ciencias Fisicas e MatematicasFoi construído um equipamento para obtenção de ligas metálicas amorfas utilizando a técnica conhecida por "Melt-Spinning". Constitui-se o mesmo de sistema mecânico (motor que aciona a roda de resfriamento), sistema de aquecimento e sistema de vácuo com câmara de argônio para ligas que oxidam. O equipamento foi testado com a liga CO67Fe4MO1Si12B16, tendo sido obtida fitas com 0,38mm de largura e 40mm de espessura. O grau de amorfização das fitas analisado com medidas de magnetização, mostrando campo magnético de saturação característica dos amorfos

    PROGRAMA GRÁFICO DESENVOLVIDO EM PYTHON PARA ANÁLISE E FILTRAGEM AUTOMÁTICA DA VARIABILIDADE DA FREQUÊNCIA CARDÍACA

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      O TRR-Filter é um programa desenvolvido para filtragem de séries temporais de intervalos RR (duração de um batimento cardíaco completo). Este artigo apresenta o processo de reestruturação do programa TRR–Filter para a linguagem Python com a meta de torna-lo portátil entre sistemas operacionais, além de adicionar outras funcionalidades. O TRR-Filter realiza filtragens automáticas de batimentos cardíacos e plota tacogramas com os dados originais e filtrados que foi feito por Dos Santos et al (2016). O programa foi feito com sucesso e está nas fases finais de testagem

    AVALIAÇÃO DA INCIDÊNCIA DE DORES NA COLUNA E OUTRAS ARTICULAÇÕES NO PERÍODO DE HOME OFFICE DURANTE A PANDEMIA DA COVID-19

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    What impact has the COVID-19 pandemic brought to the musculoskeletal health of formal home office workers? To answer this question, a prospective observational study was carried out through data collection via an online questionnaire, from September 2020 to October 2021. Questions were created about the profile of formal workers, frequency of physical activities, back pain and others joint and other factors associated with remote work and social isolation. A sample of 98 participants was obtained. In conclusion, there was a change in the pattern of physical activities and, the hours worked in the period, caused worsening and/or emergence of pain.Qual o impacto que a pandemia da COVID-19 trouxe para a saúde osteomuscular dos trabalhadores formais em home office? Para responder esta pergunta foi realizado estudo prospectivo observacional por meio da coleta de dados via questionário online, no período de setembro de 2020 a outubro de 2021. Foram criadas questões sobre o perfil dos trabalhadores formais, frequência de atividades físicas, dores na coluna e outras articulações e demais fatores associados ao trabalho remoto e ao isolamento social. Foi obtida amostra de 98 participantes. Como conclusão, verificou-se alteração do padrão de atividades físicas e, a quantidade de horas trabalhadas no período, acarretou piora e/ou surgimento de dores

    Tratamento De Queratocistos Odontogénicos Na Síndrome De Gorlin-Goltz

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    Introduction: Gorlin-Goltz Syndrome is presented by a dominant genetic alteration that can lead to changes throughout the body. Among the most common changes are keratocysts, intraosseous pathological lesions with a high recurrence rate in the maxillofacial regions. Early diagnosis is extremely important, since individuals with the syndrome are susceptible to developing basal cell carcinomas in epithelial tissue. Case Report: Patient affected by a rare syndrome (Gorlin-Goltz Syndrome) with changes diagnosed in different regions of the body such as: keratocysts, basal cell carcinomas, chest excavatum, calcification of the cerebral falx, among others. His treatment was carried out in a multidisciplinary manner associated with surgical treatment and the use of antineoplastic medication, which resulted in significant improvement in relation to his basal cell carcinomas. Discussion: GGS is a rare condition, with a complex diagnosis, since the syndrome can lead. Conclusion: to several clinical and imaging changes, which may or may not be present in the individual. Gorlin-Goltz syndrome presents several clinical manifestations, with keratocyst lesions being one of the most important. Multidisciplinary treatment is indicated, as the syndrome presents several changes, requiring long-term monitoring of these individuals. Introdução: A Síndrome de Gorlin-Goltz apresenta-se por uma alteração genética dominante podendo levar a alterações através do corpo. Entre as alterações mais comuns estão os ceratocistos, lesões patológicas intraósseas com alta taxa de recidiva nas regiões maxilofaciais. O diagnóstico precoce é de extrema importância, uma vez que os indivíduos que possuem a síndrome são susceptíveis a desenvolverem carcinomas basocelulares em tecido epitelial. Relato de Caso: Paciente acometido por uma rara síndrome (Síndrome de Gorlin-Goltz) com alterações diagnosticadas em diversas regiões do corpo como: ceratocistos, carcinomas basocelulares, peito excavatum, calcificação de foice cerebral, entre outros. Seu tratamento foi realizado de forma multidisciplinar associado tratamento cirúrgico e uso de medicamento antineoplásico, que resultou em melhora significativa em relação a seus carcinomas basocelulares. Discussão: A SGG é uma condição rara, de diagnóstico complexo, uma vez que a síndrome pode levar a diversas alterações clínicas e imaginológicas, sendo ainda possível, estarem ou não presentes no indivíduo. Conclusão: A síndrome de Gorlin-Goltz apresenta diversas manifestações clínicas, sendo as lesões de ceratocistos uma das mais importantes. O tratamento multidisciplinar está indicado, uma vez que a síndrome apresenta diversas alterações, necessitando de acompanhamento em longo prazo desses indivíduos

    Utilização de óleo essencial de noni no controle fitossanitário de Colletotrichum gloeosporioides em plantas de Mangifera indica

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    The use of essential oils in agriculture as botanical insecticides has been used as an option in the control of diseases and pests, with the least possible impact on the ecosystem. Anthracnose is the main disease in mango culture, and can cause damage to fruit productivity and quality. The objective of this work was to evaluate the potential of noni essential oil (Morinda citrifolia L.) in the control of phytopathogens in plants of Mangifera indica. From the isolation of lesions of mango plants, the phytopathogenic fungus was obtained. The essential oil was removed from ripe noni fruits. In vitro bioassays were performed by testing different concentrations of essential oil. For the phytotoxicity test, five different concentrations of essential oil were used. The preventive control test was installed by applying by means of a manual spray. The curative test was also performed. The essential oil of noni showed an inhibitative effect on the growth of the fungus C. gloeosporioides in vitro. Phytotoxicity symptoms were observed in mango leaves at noni oil doses greater than 1.5%. The preventive application was more efficient than the curative for the control of anthracnose in mango plants.O uso de óleos essenciais na agricultura como inseticidas botânicos, tem sido usado como uma opção no controle de doenças e pragas, com menor impacto possível sobre o ecossistema. A antracnose é a principal doença na cultura da manga, podendo causar prejuízos na produtividade e qualidade dos frutos. O objetivo desse trabalho foi avaliar o potencial do óleo essencial de noni (Morinda citrifolia L.) e no controle de fitopatógenos em plantas de Mangifera indica. A partir do isolamento de lesões de plantas de manga foi obtido o fungo fitopatogênico. O óleo essencial foi retirado a partir de frutos maduros de noni. Os bioensaios in vitro foram realizados testando-se diferentes concentrações do óleo essencial. Para o teste de fitotoxicidade foi utilizado cinco concentrações diferentes de óleo essencial. O teste de controle preventivo foi instalado aplicando-se por meio de um borrifador manual. Também foi realizado o teste curativo. O óleo essencial de noni apresentou efeito inibitório no crescimento do fungo C. gloeosporioides in vitro. Os sintomas de fitotoxicidade foram observados nas folhas de manga em doses de óleo de noni maior que 1,5%. A aplicação preventiva foi mais eficiente que a curativa para o controle de antracnose em plantas de manga

    The development of bus rapid transit in Latin America: a review

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    Urban mobility is a challenge worldwide due to the increasing of people living in cities. 15 In developing countries, this challenge raises due to the absence of enough capital to invest in rail- 16 road systems such as metros, trains, and light rail services. In this sense, Bus Rapid Transit (BRT) 17 was developed in Latin America as an alternative to low-cost great capacity transportation to those 18 systems. The objective of this paper is to explore system development in the region and to identify 19 if the main current BRTs really bring advantages to the cities in terms of urban mobility. To perform 20 the article we conducted a literature review and compared five main BRT systems in the region 21 considering the passenger volume, and extension in km using data from Global BRT data. The re- 22 sults suggest that BRT systems have been producing efficient urban mobility in cities such as Rio de 23 Janeiro, Sao Paulo, Bogota, and Mexico City.CAPES, number: 001. Acknowledge UNIP – Universidade Paulista and CAPE

    Objetos escolares, contextos de utilização e ensino das práticas de dança: O projeto ESDmap da Escola Superior de Dança

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    Nesta comunicação propomo-nos apresentar e discutir o projeto de investigação ESDmap em desenvolvimento na Escola Superior de Dança, do Instituto Politécnico de Lisboa. O projeto, recorrendo a procedimentos de recolha, classificação e observação documental, de história oral e de análise do discurso, centra-se no património educativo da Escola e nos objetos escolares que o constituem, para identificar na história da instituição os contextos em que esses artefactos foram utilizados entre 1983 e 2016, problematizar, numa análise pioneira sobre o ensino superior, a sua relação com o ensino das práticas de dança e, adicionalmente, explorando a dimensão artística, atribuir, pela via da criação coreográfica, outra performatividade e um novo presente a esses objetos escolares.ABSTRACT - In this paper we propose to present and discuss the ESDmap research project being carried out by the Higher School of Dance of the Polytechnic Institute of Lisbon. The project, using procedures of collection, classification and documentary observation, oral history and discourse analysis, focuses on the educational heritage of the School and on the school objects that constitute it, to identify in the history of the institution the contexts in which these artifacts were used between 1983 and 2016, to problematize, in a pioneering analysis on higher education, its relation to the teaching of dance practices, and, in addition, by exploring the artistic dimension, to assign, through the choreographic creation, another performativity and a new present to these school objects.Projeto financiado no âmbito da 2ª edição do Concurso de Projetos de Investigação, Desenvolvimento, Inovação e Criação Artística (IDI&CA), do Instituto Politécnico de Lisboa. IPL/2017/ESDMAP/ESDinfo:eu-repo/semantics/publishedVersio

    Mixed modeling for fiber yield genetic selection in sugarcane

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    The current demand for clean and renewable energy has provoked considerable changes in the production system of agroindustrial companies. The generation of bioelectricity through the burning of sugarcane bagasse has considerably risen in the recent years. This work aimed to focus on the sugarcane genotypes selection for fiber productivity. The experiment was outlined in randomized blocks with four repetitions, and sixteen genotypes were evaluated. The evaluated traits  were: cane tons per hectare, sucrose tons per hectare, fiber tons per hectare, fiber content and apparent sucrose content. To the selection, the mixed linear models methodology was used. The heritability coefficients suggest a significant genetic gain and the harmonic means of relative performances of predicted genotypic values allowed the identification of stable genotypes related to the traits evaluated in four harvest cycles. Considering the current average demand of sugarcane agroindustry for varieties with fiber content between 12% and 17% and sucrose content near 13%, for energy generation and sugar production, the genotypes EECAC 06, EECAC 03, EECAC 04 and EECAC 07 are presented as commercial cultivation options. Highlights - Mixed models constitute an efficient tool for sugarcane selection focused onto fiber and sucrose production. - This methodology provides significant genetic gains based on predicted genetic values free from interaction with harvest cycles. - The evaluated genotypes present high fiber and sucrose productivity, genotypic adaptability and stability throughout harvest cycles, indicating longevity in the sugarcane crop.The current demand for clean and renewable energy has provoked considerable changes in the production system of agroindustrial companies. The generation of bioelectricity through the burning of sugarcane bagasse has considerably risen in the recent years. This work aimed to focus on the sugarcane genotypes selection for fiber productivity. The experiment was outlined in randomized blocks with four repetitions, and sixteen genotypes were evaluated. The evaluated traits  were: cane tons per hectare, sucrose tons per hectare, fiber tons per hectare, fiber content and apparent sucrose content. To the selection, the mixed linear models methodology was used. The heritability coefficients suggest a significant genetic gain and the harmonic means of relative performances of predicted genotypic values allowed the identification of stable genotypes related to the traits evaluated in four harvest cycles. Considering the current average demand of sugarcane agroindustry for varieties with fiber content between 12% and 17% and sucrose content near 13%, for energy generation and sugar production, the genotypes EECAC 06, EECAC 03, EECAC 04 and EECAC 07 are presented as commercial cultivation options. Highlights - Mixed models constitute an efficient tool for sugarcane selection focused onto fiber and sucrose production. - This methodology provides significant genetic gains based on predicted genetic values free from interaction with harvest cycles. - The evaluated genotypes present high fiber and sucrose productivity, genotypic adaptability and stability throughout harvest cycles, indicating longevity in the sugarcane crop

    Condições de ventilação natural em meio urbano recorrendo a um modelo integrado

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    O artigo apresenta uma metodologia que permite aceder às condições de ventilação natural em meios urbanos, quer nos espaços exteriores quer no interior do espaço construído. Os resultados podem ser apresentados tendo em vista diferentes fins e formas que vão desde a representação gráfica dos padrões globais do vento a nível do solo (segurança e conforto de peões, definição de espaços de lazer e outros) à estimativa de fluxos e propriedades do ar (velocidade, temperatura e outros) dentro de um compartimento tendo em atenção pequenas fontes ou poços de calor e as condições no exterior impostas pelo vento local, passando pelas distribuições de pressão sobre paredes e coberturas, essenciais no dimensionamento de componentes e estruturas

    Biometric genetics in Cowpea beans (Vigna unguiculata (L.) Walp) II: estimates of genetic gains through selection indices

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    Low cowpea productivity (Vigna unguiculata (L.) Walp) in the semi-arid region of Paraíba is due, among other factors, to poor-quality cultivars. This research tested biometric models intending to increase productivity of superior cultivars with the following objectives: i. Estimate genetic gains in production components; ii. Identify the selection index model providing the greatest gains through simultaneously selecting a set of variables, and iii. Select cultivars with higher productivity. The experiment was carried out in the experimental field of the Agrifood Science and Technology Center of the Federal University of Campina Grande. Eight cultivars and 13 variables were evaluated. Data were subjected to ANOVA and means were grouped using the Scott and Knott test. Genetic gains were estimated by correlated response, classic selection index, rank sum and index based on desired gains. Direct selection of the secondary pod yield component provides significant genetic gains in main grain yield. Among the methodologies used, the classic selection index provided greater distribution of genetic gains for main grain yield and primary production components. These results allow concluding that Costela de vaca, BRS Marataoã and Paulistinha cultivars should be selected for cultivation and commercial exploitation in the semiarid region of Paraíba. Highlights: Direct selection of the secondary pod yield component provides significant genetic gains in main grain yield. The classic selection index provided greater distribution of genetic gains for main grain yield and primary production components. Cultivars were selected for cultivation and commercial exploitation in the semi-arid region of Paraíba.Low cowpea productivity (Vigna unguiculata (L.) Walp) in the semi-arid region of Paraíba is due, among other factors, to poor-quality cultivars. This research tested biometric models intending to increase productivity of superior cultivars with the following objectives: i. Estimate genetic gains in production components; ii. Identify the selection index model providing the greatest gains through simultaneously selecting a set of variables, and iii. Select cultivars with higher productivity. The experiment was carried out in the experimental field of the Agrifood Science and Technology Center of the Federal University of Campina Grande. Eight cultivars and 13 variables were evaluated. Data were subjected to ANOVA and means were grouped using the Scott and Knott test. Genetic gains were estimated by correlated response, classic selection index, rank sum and index based on desired gains. Direct selection of the secondary pod yield component provides significant genetic gains in main grain yield. Among the methodologies used, the classic selection index provided greater distribution of genetic gains for main grain yield and primary production components. These results allow concluding that Costela de vaca, BRS Marataoã and Paulistinha cultivars should be selected for cultivation and commercial exploitation in the semiarid region of Paraíba. Highlights: Direct selection of the secondary pod yield component provides significant genetic gains in main grain yield. The classic selection index provided greater distribution of genetic gains for main grain yield and primary production components. Cultivars were selected for cultivation and commercial exploitation in the semi-arid region of Paraíba
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