273 research outputs found

    Apresentação Inicial do Material Lítico do Sítio Furna do Estrago

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    Trabalho apresentado no SimpĂłsio 13 da VI ReuniĂŁo da SAB Nordeste 202

    Artificial neural networks on eggs production data management

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    Background: Eggs have acquired a greater importance as an inexpensive and high-quality protein. The Brazilian egg industry has been characterized by a constant production expansion in the last decade, increasing the number of housed animals and facilitating the spread of many diseases. In order to reduce the sanitary and financial risks, decisions regard¬ing the production and the health status of the flock must be made based on objective criteria. The use of Artificial Neural Networks (ANN) is a valuable tool to reduce the subjectivity of the analysis. In this context, the aim of this study was at validating the ANNs as viable tool to be employed in the prediction and management of commercial egg production flocks. Materials, Methods & Results: Data from 42 flocks of commercial layer hens from a poultry company were selected. The data refer to the period between 2010 and 2018 and it represents a total of 600,000 layers. Six parameters were selected as “output” data (number of dead birds per week, feed consumption, number of eggs, weekly weight, weekly egg produc¬tion and flock uniformity) and a total of 13 parameters were selected as “input” data (flock age, flock identification, total hens in the flock, weekly weight, flock uniformity, lineage, weekly mortality, absolute number of dead birds, eggs/hen, weekly egg production, feed consumption, flock location, creation phase). ANNs were elaborated by software programs NeuroShell Predictor and NeuroShell Classifier. The programs identified input variables for the assembly of the networks seeking the prediction of the variables called outgoing that are subsequently validated. This validation goes through the comparison between the predictions and the real data present in the database that was the basis for the work. Validation of each ANN is expressed by the specific statistical parameters multiple determination (R2) and Mean Squared Error (MSE). For instance, R2 above 0.70 expresses a good validation. ANN developed for the output variable “number of dead birds per week” presented R2= 0.9533 and MSE= 256.88. For “feed consumption”, the results were R2= 0.7382 and MSE= 274.56. For “number of eggs (eggs/hen)”, the results were R2= 0.9901 and MSE= 172.26. For “weekly weight”, R2= 0.9712 and MSE= 11154.41. For “weekly egg production”, R2= 0.8015 and MSE= 72.60. For “flock uniformity”, R2= -2.9955 and MSE= 431.82. Discussion: From the six ANN designed in this study, in five it was possible to validate the predictions by comparing predictions with the real data. In one output parameter (“flock uniformity”), it was not possible to have adequate validation due to insufficient data in our database. For “number of dead birds per week”, “feed consumption”, “weekly weight” and “uniformity”, the most important variable was “flock age” (27.5%, 52.5%, 55.2% and 37.9%, respectively). For “number of eggs (eggs/hen)”, “uniformity” (52.1%) was the most relevant variable for prediction. For “weekly egg production”, “flock age” and “number of eggs (eggs/hen)” were the most important zootechnical parameters, both with a relative contribution of 38.2%. The results showed that even with the use of a robust tool such as ANNs, it is necessary to have well-noted and clear information that expresses the reality of the flocks. In any case, the results presented allow us to state that ANNs are capable for the management of data generated in a commercial egg production facility. The process of evaluation of these data would be improved if ANNs were routinely used by the professionals linked to this activity

    ResistĂȘncia ao cancro-da-haste, Ă  cercosporiose e ao oĂ­dio de linhagens de soja sem lipoxigenases nas sementes

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    The soybean [Glycine max (L.) Merrill] crop holds a prominent position in the Brazilian economy because of the extension of the planted area and volume of grain production, but the beany flavor has been a limiting factor for soybean derivatives consumption by western population. This flavor is produced mainly by action of lipoxygenase enzymes (Lox1, Lox2 and Lox3), present in some commercial varieties. The genetic elimination of the alleles that codify these enzymes is the most appropriate way to avoid problems associated to this deleterious flavor. To elucidate the effect of seed lipoxygenase elimination on the resistance to plant pathogens, normal varieties of soybean (FT-Cristalina RCH, Doko RC and IAC-12) and their backcross-derived lines, both with the three lipoxygenases present in their seeds (triple-positive, TP) and without the three lipoxygenases (triple-null, TN), were tested for their resistance to stem canker (Diaporthe phaseolorum f.sp. meridionalis), frogeye leaf spot (Cercospora sojina Hara), and powdery mildew (Microsphaera diffusa Cke. & Pk.). All genetic materials studied were resistant to stem canker. FT-Cristalina RCH and Doko-RC and their TP and TN lines were resistant to frogeye leaf spot. IAC-12 and its derived lines not only presented a higher disease index, but also the derived lines, TP and TN, were more susceptible, indicating the loss of genes for disease resistance in the backcrosses. There was no association between the elimination of lipoxygenases from the seeds with the resistance to frogeye leaf spot. In relation to the powdery mildew, TP or TN lines presented similar or higher resistance than their respective recurrent parents whose susceptibility appeared in the following order: IAC-12, less susceptible, Doko-RC, intermediate and FT-Cristalina RCH, more susceptible.A cultura da soja [Glycine max (L.) Merrill] ocupa lugar de destaque na economia brasileira, tanto em termos de ĂĄrea plantada, quanto de produção de grĂŁos. A presença de gosto de feijĂŁo cru tem sido limitante para o consumo de derivados de soja pelos povos ocidentais. Esse sabor caracterĂ­stico Ă© proporcionado pelas enzimas lipoxigenases (Lox1, Lox2 e Lox3). A eliminação dessas enzimas, pela manipulação genĂ©tica dos alelos que as codificam, Ă© a maneira mais adequada de contornar os problemas associados ao sabor desagradĂĄvel. Visando elucidar a participação das lipoxigenases, no processo de resistĂȘncia da soja a patĂłgenos, variedades normais de soja (FT-Cristalina RCH, Doko RC e IAC-12) e suas respectivas linhagens obtidas por retrocruzamentos, sem as trĂȘs lipoxigenases nas sementes (triplo-nulas - TN) e com as trĂȘs lipoxigenases (triplo-positivas - TP), foram testadas quanto Ă s suas resistĂȘncias ao cancro-da-haste (Diaporthe phaseolorum f.sp. meridionalis), Ă  cercosporiose (Cercospora sojina Hara) e ao oĂ­dio (Microsphaera diffusa Cke. & Pk.). Todos os materiais genĂ©ticos foram resistentes ao cancro-da-haste. Com relação Ă  cercosporiose, FT-Cristalina RCH e Doko-RC e suas respectivas linhagens com ou sem lipoxigenases mostraram-se resistentes, enquanto IAC-12 e suas linhagens derivadas mostraram Ă­ndices de doença mais elevados, sendo que as linhagens IAC-12 TP e TN foram mais suscetĂ­veis, indicando perda de gene de resistĂȘncia nos retrocruzamentos. NĂŁo houve relação entre retirada dos genes que codificam lipoxigenases nas sementes com a resistĂȘncia Ă  cercosporiose. No caso do oĂ­dio, as linhagens TP ou TN apresentaram-se similares ou pouco mais resistentes que seus respectivos progenitores recorrentes, os quais se mostraram suscetĂ­veis na seguinte ordem: IAC-12, menos suscetĂ­vel, Doko-RC, intermediĂĄrio e FT-Cristalina RCH, mais suscetĂ­vel

    Artificial neural networks to predict egg-production traits in commercial laying breeder hens

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    In recent years, egg production has had an intense growth in Brazil, and Brazilian egg consumption per capita has significantly increased in the last decade. To reduce sanitary and financial risks, decisions regarding the production and health status of the flock must be made based on objective criteria. Our aim was to determine the main “input” variables for the prediction of egg production performance in commercial laying breeder flocks using an ANN model. The software NeuroShellClassifier and NeuroShell Predictor were used to build the ANN. A total of 26 egg-production traits were selected as input variables and eight as output variables. A database of 44,120 Excel cells was generated. For the training and validation of the models, 74.9% and 25.1% of the data were used, respectively. The accuracy of the ANN models was calculated and compared using the analysis of coefficient of multiple determination (R2), mean squared error (MSE), and an assessment of uniform scatter in the residual plots. The models for the outputs “weekly egg production,” “weekly incubated egg,”, “accumulated commercial egg,” and “viability” showed an R2 greater than 0.8. Other models yielded R2 values lower than 0.8. The ANN predicts adequately eight egg-production traits in the breeders of commercial laying hens. The method is an option for data management analysis in the egg industry, providing estimates of the relative contribution of each input variable to the outputs

    DinĂąmica de uso de psicofĂĄrmacos e a relação com a psicoterapia psicanalĂ­tica na interface da saĂșde mental: uma revisĂŁo integrativa

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    Introduction: Drug use has been discussed by various authorities and health professionals, and a change in attitude. Among them, psychoanalysts and psychotherapists recognize the importance that the theme has been having in recent decades, considering the rational use of psychotropic drugs as supporting psychoanalytic treatment. Objective: To analyze the use of psychotropic drugs and their relationship with psychoanalytic psychotherapy in the interface of mental health. Methods: This is an integrative review of the MEDLINE Database based on a statement of preferred reports for systematic methods and meta-analyzes (PRISMA) through the descriptors: Psychotropic Drugs and Psychoanalysis Drug Therapy and Drug Misuse and Drug Use and Signs and Symptoms, filtering the results by title and summary specificity and only studies available in their full version and conducted in humans were detected. Results: 42 articles were selected for final analysis. The object of article analysis was submitted to the analyst who treats his patients and conducts clinical trials with drug interaction, as well as therapeutic transfer complement as a clinical resource for treatment of psychoanalytic sessions. In addition, the results of this drug interaction were evidenced as supporting factors in the clinical treatment of clients exposed to the clinical session. Final considerations: The use of psychoactive drugs and psychoanalytic psychotherapy Shows as an association capable of proving interaction and integration of the personality aspects and the psychological structure of the individual. It is a clinical condition that can be stimulated in the mental health treatment of individuals suffering from mental / emotional distress.Introdução: O consumo de medicamentos tem sido discutido por diversas autoridades e profissionais da saĂșde, proporcionando uma mudança de postura desses. Dentre eles, os psicanalistas e psicoterapeutas reconhecem a tamanha importĂąncia que o tema tem tomado nas Ășltimas dĂ©cadas, considerando o uso racional de psicofĂĄrmacos como coadjuvantes do tratamento psicanalĂ­tico. Objetivo: Analisar o uso de psicofĂĄrmacos e sua relação com a psicoterapia psicanalĂ­tica na interface da saĂșde mental. MĂ©todo: Trata-se de uma revisĂŁo integrativa na Base de Dados MEDLINE realizada de acordo com a declaração de relatĂłrios preferenciais para avaliaçÔes sistemĂĄticas e metanĂĄlises (PRISMA), atravĂ©s dos descritores Psychotropic Drugs AND Psychoanalysis Therapy AND Drug Misuse AND Drug Utilization AND Signs and Symptoms, filtrando os resultados por especificidade em tĂ­tulo e resumo e selecionando apenas estudos disponĂ­veis em sua versĂŁo completa e realizados com seres humanos. Resultados: Selecionaram-se 42 artigos para anĂĄlise final. O objeto de anĂĄlise dos artigos foi o sujeito analista que trata seus pacientes e realiza observaçÔes clĂ­nicas com interação medicamentosa, bem como complemento de transferĂȘncia terapĂȘutica como recurso clĂ­nico para o tratamento na sessĂŁo psicanalĂ­tica. Ademais, os resultados dessa interação medicamentosa foram evidenciados como coadjuvantes no tratamento clĂ­nico dos clientes expostos Ă  sessĂŁo clĂ­nica. ConsideraçÔes finais: O uso de psicofĂĄrmacos e psicoterapia psicanalĂ­tica apresentou-se como uma associação capaz de prover interação e integração dos aspectos da personalidade e da estrutura psĂ­quica do sujeito. Trata-se de condição clĂ­nica que deverĂĄ ser estimulada em tratamento de saĂșde mental de sujeitos acometidos por sofrimento mental/emocional

    Study of wound healing in rat skin treated with extract of Hedera helix, L / Estudo da cura de feridas na pele de rato tratada com extrato de Hedera helix, L

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    The Hera (Hedera helix L) is part of the ARALIACEAE family, is included in the group of plants that produce saponins, has antifungal action, is hypocholesterolemic, has anti-inflammatory activity, is expectorant, antispasmodic and purifying. It was evaluated, by histological studies, the wound healing action of the extract of Hera leaves on skin wounds, as well as changes in the epithelial tissue and wound healing period. 75 Wistar rats were used and divided into five groups, according to the treatment: negative control (PBS), Hera 10 mg/ml, Hera 30 mg/ml, Hera 50 mg/ml and the positive control (Nebacetin). The animals were anesthetized and undergone through a cut of 4 cm in the dorsal region, exposing their muscle fascias. Right after, daily, the suitable substance to each group was applied in the lesion. After periods of 3, 7, 14, 21 days after the surgery, the animals were killed to collect fragments of the lesion. The material was prepared in stained slides with H&E and toluidine blue for histologic analysis. The results showed that at day 14 of treatment, the animals under effect of 30 mg/ml and 50 mg/ml of Hera extract did not present edema. It was also observed a reduction in vascular congestion in the Hera of 30 mg/ml, Hera 50 mg/ml and Nebacetin groups compared to the other groups analyzed. All groups treated with Hera extract showed a reduction of inflammatory cells in day 14 post-lesion, besides the increase of fibroblast this period, showing acceleration in the chronicity of the lesion. Regarding the number of mast cells, a significant increase in the early lesion, in the 3 and 7 days periods was observed, in Hera 50 mg/ml and 30 mg/ml groups, respectively. According to the results, the Hera extract, especially at concentrations of 30 mg/ml and 50 mg/ml accelerated the healing process; based on the decreased permanence period of the edema and congestion of the vessels, as well as changes in the number of cells related to inflammation of lesions

    A relação entre a gestão do conhecimento e a logística: fatores relevantes e novas perspectivas com base na logística 4.0 / The relationship between knowledge management and logistics: relevant and new perspective factors based on logistics 4.0

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    O presente artigo tem como objetivo analisar as relaçÔes existentes entre a logĂ­stica e a gestĂŁo do conhecimento em um contexto anterior e posterior ao surgimento da indĂșstria 4.0. Este artigo identifica as principais tecnologias aplicadas a logĂ­stica 4.0. Para isso, foi realizado um levantamento de artigos nos motores de busca Scopus e Web of Science referente ao perĂ­odo de 2012 Ă  2017. Constata-se que as tecnologias inseridas nesse contexto permitem um compartilhamento ĂĄgil da informação

    Avaliação do emprego de cartĂ”es FTA para o transporte do DNA de Pasteurella multocida e pesquisa de genes associados Ă  virulĂȘncia em cepas isoladas de cĂłlera aviĂĄria nos Estados Unidos

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    Fowl Cholera (FC) is a disease caused by Pasteurella multocida. The severity of this disease is partly caused by virulence factors. Genes encoding fimbriae, capsule, sialidases and proteins for iron metabolism may be related to P. multocida’s ability to infect the host. Besides to examining DNA for the presence of virulence genes, DNA is essential for the diagnostic and FTA cards are an alternative for genetic material transport. The study aims to evaluate the viability of P. multocida DNA transport using the cards and to detect 14 virulence genes in 27 strains isolated from FC cases in the United States by multiplex-PCR. No growth was observed in any of the FTA cards, which was essential to assess the security. Furthermore, DNA detection was possible in 100% of the samples, independent of the storage period (7 to 35 days) and temperature (4°C and 37°C). ptfA, exbd-tonB, hgbA, nanB, oma87, hyaD-hyaC, sodC, hgbB, sodA, nanH and pfhA genes were detected in more than 80% of the samples. FTA cards have proven to be a viable and safe tool for DNA transport of P. multocida. A majority of genes showed a high frequency, which was similar to strains isolated from FC cases.CĂłlera aviĂĄria (CA) Ă© uma doença causada pela bactĂ©ria Pasteurella multocida e a severidade dos casos Ă© em parte justificada por fatores de virulĂȘncia. Genes codificando fĂ­mbrias, cĂĄpsulas, sialidases, dismutases e proteĂ­nas do metabolismo fĂ©rrico podem ser relacionados Ă  capacidade do agente em infectar o hospedeiro. AlĂ©m da obtenção do DNA para pesquisa de genes de virulĂȘncia, o material genĂ©tico Ă© fundamental para o diagnĂłstico, e os cartĂ”es FTA seriam uma alternativa no transporte de microrganismos. Os objetivos da presente pesquisa foram avaliar a viabilidade do transporte de DNA de P. multocida atravĂ©s dos cartĂ”es e detectar 14 genes de virulĂȘncia em 27 cepas isoladas de CA nos Estados Unidos, por meio de multiplex-PCR. Nenhuma das amostras para anĂĄlise microbiolĂłgica da segurança dos cartĂ”es apresentou crescimento. Foi possĂ­vel a detecção do DNA em 100% das amostras, independentemente do tempo de estocagem (sete a 35 dias) e das temperaturas (4°C e 37°C) avaliadas. Genes ptfA, exbd-tonB, hgbA, nanB, oma87, hyaD-hyaC, sodC, hgbB, sodA, nanH e pfhA foram detectados em mais de 80% das amostras. Os cartĂ”es FTA demonstraram ser uma ferramenta viĂĄvel e segura para o transporte do DNA de P. multocida. A maioria dos genes apresentou uma alta frequĂȘncia, compatĂ­vel com isolados de CA
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