629 research outputs found

    Árvore decisória para o controle da mastite bovina em fazenda leiteira no Pantanal.

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    A mastite é um processo inflamatório da glândula mamária acompanhado da redução de secreção de leite. Bactérias são, como o Staphylococcus aureus, consideradas patógeno primário e tem sido o agente isolado mais freqüentemente tanto de infecções clínicas como subclínicas. O sistema APPCC é uma abordagem sistemática para controlar potenciais perigos na produção de alimentos. É um instrumento útil para avaliar perigos e estabelecer mecanismos de controle, sempre privilegiando a prevenção. O presente estudo teve como objetivo elaborar uma arvore decisória para auxiliar na tomada de decisão no controle de mastite usando princípios da análise de perigos em pontos críticos de controle em uma fazenda leiteira, do Pantanal.bitstream/item/37490/1/CT46.pd

    Enraizamento in vitro de Inhame da Costa (Dioscorea rotundata).

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    Com o objetivo de otimizar o meio de cultura para promover o enraizamento de plantas de inhame in vitro, microestacas de plantas de Inhame da Costa (Dioscorea rotundata) pré-estabelecidas in vitro foram utilizadas como fonte de explantes iniciais e cultivadas em meios de cultura com diferentes concentrações de sais e vitaminas do MS e doses de carvão ativado. Aos 30 dias, avaliaram-se as seguintes variáveis: altura de planta, número de folhas e de raízes. A utilização do meio ½ MS com 1,0 g de carvão ativado promoveu um melhor desenvolvimento (maior altura e maior número de folhas) das plantas de inhame. Quando se comparou os diferentes tipos de meio, o meio ½ MS também foi o mais adequado para promover o enraizamento das plantas de inhame in vitro utilizando 0,5 ou 1g L-1 de carvão ativado

    Financial compensation due to municipalities that host radioactive waste deposits

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    This work aims to perform calculation about the financial compensation due to municipalities where there is viability for construction of radioactive waste deposits from low and medium activity. Were used like base structure de Resolution No. 96 of August, 10, 2010, entitled “Model of Calculation For Financial Compensation to Municipalities” where are determinate those principal characteristics by the waste and deposits, such as the half-life, activity level, type of deposits (initial, intermediate or final), costs for construction and maintenance of deposits, demography, between others. The calculation was made according to the temporally or definitive storage for solids waste like personal protection equipment (gloves, shoes, masks, etc) resins and filters used in wastewater treatment, between others, from of nuclear and radioactivity facilities. There are presented some countries that do the compensation, financial or not, for some municipalities for the construction of waste deposits and in some cases, the way that occurred the negotiation between the stakeholders, in other words, the local population and the companies. Also are presented others forms of financial compensation in Brazil in consequence of activities in large scale which result in potential risk for the surrounding population and for the environment, like compensation for oil and natural gas, hydropower plants and mining. Were used on methodology the inventory of waste presented on RMBN project (Repository of Waste of Low and Medium Activity) developed by the CDTN which present the implementation of a repository for final storage to radioactive waste. With this was possible to develop a case study with the creation of four scenarios. Values were found which initially range from R2,6miltoR2,6 mil to R79,8 mil for month. Finally are analyzed the possible influences which that values may have on the municipality budget revenue and som

    Micropropagação de inhame da costa (Dioscorea rotundata) em diferentes intensidades luminosa.

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    Microestacas de plantas de inhame da costa (Dioscorea rotundata) pré-estabelecidas in vitro foram utilizadas como fonte de explantes iniciais e cultivadas em meio MS, contendo 100 mg L-1 de inositol, 20 mg L-1 de cisteina, 0,20 mg L-1 de ANA, 0,15 mg L-1 de BAP e 0,08 mg L-1 de GA3 testando diferentes intensidade luminosa. Aos 30 dias, avaliaram-se as seguintes variáveis: número de brotos e de folhas e altura de planta. As melhores respostas para os números de brotos formados ocorreram com os explantes cultivados em sala de crescimento 100% iluminada. Contudo verificou-se que a maior média para a altura de planta e a maior número de folhas foi encontrada com 30 % de iluminação

    The effect of residual stresses in the lateral-torsional buckling of steel I-beams at elevated temperature

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    When a beam is bent about its major axis, it may twist and move laterally, before it reaches its elastic/plastic resistance in bending. Although the problem of lateral-torsional buckling of steel beams at room temperature has a well-established solution, the same problem at elevated temperature has not. A numerical investigation of the lateral-torsional buckling of steel I-beams subjected to a temperature variation from room temperature up to 700 °C, with the aim of assessing the effects of the residual stresses in this mechanism of failure, is presented in this paper.http://www.sciencedirect.com/science/article/B6V3T-49WPKXM-4/1/af8f102f10a3293de400c7377649c98

    Total and attuned multiple autonomy support and the social development of early adolescents

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    The effects of Multiple Autonomy Support (MAS), meaning the autonomy support provided by two or more sources, is an overlooked topic in social development literature. The aim of this study is to understand how two types of MAS, Total Multiple Autonomy Support (TMAS) and Multiple Autonomy Support Attunement (MASA), are related to early adolescents’ social development indicators (prosocial behavior, self-regulation, antisocial behavior, alcohol use, and 1-year substance use intention). TMAS pertains to the general amount of autonomy support perceived by a MAS recipient, irrespectively of each provider’s contribution to that score. MASA refers to the interindividual patterns of perceived coordination among MAS providers, based on each provider’s autonomy scores. The participants were 818 early adolescent Portuguese (M?=?12.15; SD?=?.81; 54.2% girls) surveyed in a cross-sectional exploratory study about MAS provided by parents, teachers, and mentors. Descriptive analyses revealed levels of low (n? =?81; 10.00%), moderate (n? =?432; 52.82%), and high (n? =?302; 36.91%) TMAS. A k-cluster analysis revealed four MASA groups: low attuned MAS (n? =?128; 15.65), misattuned MAS/low attuned parent autonomy support (n? =?225; 27.51%), misattuned MAS/low attuned teacher autonomy support (n? =?177; 21.64%), and high attuned MAS (n? =?288; 32.21%). Ordinal regressions show that, after controlling for age, a pattern of high attuned MAS predicts better prospects of prosocial behavior and self-regulation, as opposed to high levels of TMAS. In addition, MASA involving low teacher autonomy support predicts the worst results on the selected indicators of social development.info:eu-repo/semantics/acceptedVersio

    Colour profile analysis of Port Wines by different instrumental and visual methods

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    BACKGROUND: Wine colour is an important quality parameter, being the first sensorial attribute evaluated during wine tasting. The perception of wine colour can be different depending on many factors, including the depth of the sample under observation. The main objectives of the present study were to measure the colour of Port wines, using CIE L*a*b* parameters at different depths with different instrumental techniques (spectrophotometry and colorimetry), and to compare the obtained results with the sensory (visual) perception of colour samples. RESULTS: Representative profiles of Lightness (L*), Hue (H*) and Chroma (C*) at different depths were obtained using Port wine samples from different categories and ages. In general, relatively good correlations between the colorimetric and spectrophotometric methods were obtained for the L* and H* parameters. The results of the sensory tests also showed good correlations between the visually-assessed hue scores and the colorimetric measurements of the H* parameter, particularly at the lower depths tested (up to 4.0 mm). CONCLUSIONS: Overall, the results indicate that the colorimetric method can be used for estimating wine colour parameters, providing useful information about the colour profile of wines at different depthsinfo:eu-repo/semantics/acceptedVersio
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