388 resultados para extratos naturais


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Esta invenção descreve o uso de compostos obtidos a partir do extrato de raí-zes, caules, cascas e folhas de espécies vegetais do gênero arrabidaea, em especial a arrabidaea brachypoda, também conhecida como cipó-una ou cervejinha do campo, no tratamento de doenças parasitárias como a malária, doença de chagas e leishmaniose.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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This article presents considerations concerning the interaction between communication and digital platforms and applications developed to perform computerized climate monitoring and issue alerts about natural disasters. From work in the Center for Integrated Natural Disaster Alert (CIADEN), which processes meteorological data provided by Platform Monitoring, Analysis and Warning TerraMA2 designed by the National Institute for Space Research (INPE) to conduct monitoring and fi ring warning about climate risk environment, we propose the expansion of interactivity with the various possibilities of digital communication available today for signifi cant portion of society. On another front, the CIADEN has articulated teaching and research on climate monitoring and warning of natural disasters, weather, and geoprocessing environment, involving teachers and students both in school and in higher and technical.

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This work evaluated the natural and anthropogenic influences on the quality of groundwater from public supply wells in the urban area of Marília, São Paulo State. Sixteen sampling points were established in the Adamantina Aquifer, Bauru Aquifer System, analyzing the following parameters: electrical conductivity, temperature, pH, total suspended solids, HCO3 - , PO4 3-, SO4 2-, Cl- , F- , N-NO3 - , Ca2+, Na+ , K+ , Mg2+, Si4+, Fe3+ and Al3+. The results indicated that the groundwater in the urban area of Marília has a slightly acid pH and low conductivity, with the ionic composition presenting a low cation and anion concentration and is classified as soft water and calciumbicarbonated water. Natural sources of elements/compounds can be attributed to the dissolution of carbonates during the water/rock interaction, controlling pH, alkalinity and electrical conductivity, and hydrolysis of other mineral constituents of sedimentary rocks from Adamantina Formation, with the exception of quartz. High concentrations of N-NO3 - found in some public supply wells in urban Marilia were due to sewage.

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Esse trabalho utiliza um sistema de visão catadióptrico para capturar imagens de um cenário natural agrícola e realizar o levantamento de regiões que possam auxiliar diversas aplicações na área da Robótica Móvel Agrícola. Os sistemas de visão catadióptricos buscam capturar uma imagem 360° do ambiente a partir da combinação de lentes e espelhos. A imagem omnidirecional é retificada e seus quadrantes são extraídos, originando quatro novas imagens que representam lados de visão do veículo. Uma etapa de segmentação por cor é proposta utilizando como base o algoritmo Otsu Thresholding. No final do processo, é possível visualizar as regiões de interesse de cada quadrante.

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Pós-graduação em Agronomia - FEIS

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The scope of this work is the study of natural cavities in gullies through geophysics. The studied area is located in the city of São Pedro (SP) more precisely in the gully of Tucunzinho. The historic of the area shows that, since the 60s there were problems with the high rate of erosion in the gully. In addition to increased erosion, there is the appearance of cavities inside responsible for rebates, aggravating the situation. Geophysical methods have been successfully applied in environmental studies since they are noninvasive, are fast and relatively inexpensive. In order to better understand the context of formation of the pipes in relation to local geology, three arrangements were compared for the method of Electrical Resistivity, Schlumberger, Wenner and Dipole-dipole. Then, it was possible to determine which one is the best for this type of study. According to the data obtained in the field, the Schlumberger array presents more consistent results in relation to the erosive context analyzed