Raças de Magnaporthe oryzae do trigo em 2013.

Editores técnicos: Joseani Mesquita Antunes, Ana Lídia Variani Bonato, Márcia Barrocas Moreira Pimentel

Conversion of MDF wastes into a char with remarkable potential to remove Food Red 17 dye from aqueous effluents

Medium density fiberboard (MDF) wastes were converted into an efficient char able to uptake Food Red 17 dye (FR17) from colored effluents. The yield of the pyrolysis process, in terms of char, was 29%. The produced char presented micro and mesoporous, with surface area of 218.8 m2 g−1 and total pore volume of 0.122 cm3 g−1. Regarding to the FR17 adsorption, removal percentages of 90% were found at pH 2 and using 0.5 g L−1 of char. Pseudo–first and pseudo–second order models were adequate to represent the adsorption kinetic profile, being the equilibrium reached within 20 min. Freundlich model was selected to represent the equilibrium data. The maximum adsorption capacity was 210 mg g−1. The adsorption of FR17 on the char was endothermic and physical in nature. The char was efficient for 8 adsorption–desorption cycles, maintaining the same adsorption capacity. In brief, this work demonstrated a useful practice in terms of cleaner production. It was possible add value to MDF wastes, generating an efficient and reusable adsorbent to treat colored effluents containing FR 17 dye

Análise multivariada do efeito de diferentes densidades de alojamento sobre lesões podais em frangos de corte.

Este trabalho objetivou avaliar a utilização de estatísticas multivariadas para análise de um conjunto de dados com diferentes densidades de alojamento em frangos de corte. Foi conduzido um experimento com duas densidades de alojamento (11,07 e 13,21 aves/m²), e mensuradas variáveis de desempenho, qualidade de cama e incidência de lesões podais. A análise de fatores gerou 3 autovalores que acumularam 80,4% variância total dos dados. O Fator 1 (41,6% da variância) foi o único estatisticamente significativo pela análise de variância, e agrupou todas as variáveis relacionadas com umidade de cama e graus de lesão podal, mostrando haver uma inter-relação entre as mesmas. Estes dois grupos de variáveis foram utilizados na análise de componentes principais. Os dois primeiros componentes principais gerados acumularam 86,5% da variância total dos dados, e sua epresentação gráfica agrupou variáveis de umidade de cama e os graus mais severos de lesão podal com a maior densidade de alojamento. A análise multivariada utilizada foi eficiente no desdobramento das inter-relações entre as variáveis e demonstrou que o aumento da densidade de alojamento foi determinante na maior incidência de lesões por pododermatite e sua relação com a maior umidade da cama. This study aimed to evaluate the use of multivariate statistics to analyze a data set of different animal densities in broiler chickens. Was conducted an experiment with two animal densities (11.07 and 13.21 birds/m²); the variables measured were performance, litter quality and incidence of foot pad dermatitis. Factor analysis generated three eigenvalues which accumulated 80.4% of the total variance. Factor 1 (41.6 % of variance) was the only statistically significant by analysis of variance, and grouped all variables related to litter moisture and degrees of foot pad dermatitis, showing that there is a relationship between them. These two groups of variables wereused in the principal components analysis. The first two principal components generated accumulated 86.5% of the total variance of the data and their graphical representation grouped variables related to litter moisture and the most severe degrees of foot pad dermatitis with the highest density of housing. The multivariate analysis used was efficient in the deployment of inter-relationships between variab les and showed that increased housing density was determinant in the increased incidence of pododermatitis injuries and its relation to higher litter moisture

Monitoramento de doenças fúngicas em cultivares de trigo no Rio Grande do Sul.

Orientador: João Leodato Nunes Maciel

The project \u201cInteractive Topography of Dante\u2019s Inferno\u201d : transfer of knowledge and design of didactic tools

The project \u201ctopography of Dante\u2019s inferno\u201d is an experiment on alternative mode of access to a complex text relying on an evident topographical structure. The artifact (a website) is designed with the aim of introducing young students (11\u201314 years old) to a text usually read and studied by older students (16\u201319 years old). The design of the artifact was based on the theories of Sinsem\ueda applied to interaction design, and the testing focused on (1) usability and (2) on the understanding of the topography of the poem as a precondition for understanding the text

Ultrasonographic diagnosis of urachal anomalies in cats and dogs: Retrospective study of 98 cases (2009-2019)

This retrospective study investigated the prevalence of different urachal anomalies (UA) in cats (n = 60) and dogs (n = 38) and their association with clinical symptoms and urinalysis alterations. Among UA, the vesicourachal diverticulum was the most prevalent UA diagnosed in both cats (96.7%) and dogs (89.5%): the intramural vesicourachal diverticulum was diagnosed in 76.7% of cats and 71.1% of dogs, followed by extramural vesicourachal diverticulum (20.0% and 18.4% respectively). In both cats and dogs, bladder wall diffuse or regional thickening was the most prevalent alteration. The most common alterations of the urinary bladder content were urolithiasis sediment in cats (33.3%) and in dogs (31.6%). Dogs with UA were more often asymptomatic (p = 0.01). No difference was found in cats. Stranguria, hematuria, and urethral obstruction were the most frequently reported clinical signs, while hematuria and leukocyturia were the most prevalent abnormalities at urinalysis. In conclusion, our study confirmed UA as uncommon, and often incidental findings, with a high prevalence of animals without clinical signs

Lesão por pododermatite em frangos de corte alojados em diferentes densidades.

A criação avícola com uma maior densidade visa o aumento da produção, com o mínimo de investimentos em construções e otimização dos custos fixos. Em consequência, a pressão para redução dos custos na criação de frangos de corte levou ao aumento da densidade das aves que promove maior produção de peso vivo/m2 (2). Além disso, a piora na qualidade da cama, principalmente pela compactação decorrente de aumento de umidade, determina o aparecimento de lesões na pele, pododermatites, calo de peito e hematomas (4). As pododermatites de contato são lesões erosivas da pele, predominantes na superfície plantar das patas dos frangos de corte. A etiologia apresenta uma inflamação da pele devido a uma combinação de umidade e fatores cáusticos presentes na cama, sendo a excreta das aves, que é composta de ácido úrico, um agente importante na formação do problema (1). As pododermatites em frangos de corte passaram a ter maior relevância nos últimos anos devido à exportação dos pés dos frangos para os mercados da Ásia. Objetivou-se com este trabalho avaliar o efeito do aumento da densidade em aviário convencional sobre a frequência de lesões por pododermatite em frangos de corte

Utilización de histrogramas, función de probabilidad acumulada y técnicas de procesamiento digital de imágenes para el análisis de fenómenos de dispersión de contaminantes

En este trabajo, se implementa un procedimiento basado en técnicas de edición de video para estimar el campo de concentración en un proceso de dispersión atmosférica, utilizando modelos a escala reducida en un canal de viento. Se utilizan herramientas estadísticas como los histogramas y la función probabilidad acumulada para comparar regiones de una serie de fotogramas obtenidos mediante técnicas de edición de video. Se define una posición de interés y utilizando la función correlación se trata de estimar los efectos de interferencia en el proceso de dispersión causados por obstáculos colocados en el canal de viento. Para el procesamiento de la información, se utiliza un software que permite la visualización de los resultados y su comparación con otros trabajos de investigación desarrollados en esta misma línea.A procedure to estimate the concentration field in an atmospheric dispersion process based on video image edition is developing by using wind tunnel reduced scale models. Histograms, cumulative probability functions and other statistical tools are applied on stills from video edition to compare different plume regions. A reference position is defined and the comparative parameters around a scale reduced model are calculated. To process the information, software is used like a mathematical tool allowing to visualize and to compare results with other investigation works.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

The effect of a diet supplement containing S-acetyl-glutathione (SAG) and other antioxidant natural ingredients on glutathione peroxidase in healthy dogs: a pilot study

Oxidative stress is common in several human and veterinary conditions and it is associated to alteration of the glutathione peroxidase (GPx) level. GPx is an enzyme present in erythrocytes, kidney, and liver and it has a role in protecting against oxidative damage. In this randomised double-blinded control trial on healthy dogs, we present findings indicating that the administration for a total of 35 days of a supplement containing S-acetyl-glutathione (SAG) alongside other antioxidant natural ingredients, leads to an increase in the GPx level. Furthermore, the supplement positively changes liver blood parameters, even in healthy dogs. These preliminary results hold promise for conducting new studies using the same supplement on dogs affected by liver conditions, thereby confirming its antioxidant effects and the potential improvement of altered blood parameters

Evaluación de la dispersión de contaminantes en flujos turbulentos mediante el procesamiento de imágenes

Se presenta un procedimiento para la evaluación de la dispersión de contaminantes atmosféricos, a través de ensayos en un túnel de viento, con un modelo reducido. El análisis del campo de concentraciones, se realiza mediante técnicas de procesamiento de imágenes y el uso del modelo Gaussiano. El flujo atmosférico se simula mediante dispositivos de mezcla y rugosidad superficial, en tanto que la emisión se modela mediante una máquina de generadora de humo. El procedimiento permite una estimación del campo de concentraciones para una determinada extensión de la pluma de dispersión y no solo localmente, como en el caso de los sistemas convencionales de medición.A procedure to evaluate the atmospheric pollutant dispersion process using wind tunnel tests is presented. Image processing techniques and the Gaussian model are using to analyse the concentration field. The atmospheric wind is simulated by mixing devices and roughness elements. The emission is modelled using a smoke generator. An estimation of the concentration field on an extension of the dispersion plume is obtained, different to local evaluation realized with conventional measure systems.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES