19 research outputs found

    Elaboração De Carta De Adequabilidade Ambiental De Uma Pequena Propriedade Rural No Município De São Miguel Arcanjo, São Paulo, Utilizando Técnicas De Geoprocessamento

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    According geoprocessing techniques, slope maps, soil, land use and land cover, the Federal Law number 12.651/2012 and the recommendations of the Forest Stewardship Council (FSC) for riparian areas, this study aimed to develop a Map of Environmental Suitability that indicates levels of environmental and lawful adequacy of the study area. The Map of Land Use and Vegetation Cover showed that agricultural uses occupy 44% of the study area, followed by native vegetation (29.1%). Meanwhile, the Map of Slope reveals that 64.8% of the study area has slope class between 6 and 12%, and 22.6% between 12 and 20%. In the study area, only Dystrophic Red Oxisols was identified, with very low vulnerability to erosion. Based on the abovementioned law and recommendations of the FSC (2005) for management of riparian areas, the Map of Restricted Uses was produced, in which 22.4% of the area is composed of permanent preservation areas (APP), 0.3% of APP to recompose, 18.3% of legal reserve (LR) and 9.9% of riparian management areas. The three last thematic maps were overlaid, considering the importance in the conservation of water resources and the legal attendance to generate the Conservationist Use Map, which shows that the areas with high and very high vulnerability are the APP; those with slope between 12 and 20% represent 45.5% of the study area. This map was overlaid by the Land Use and Land Cover maps, and an Environmental Adaptation Map was produced using a weighted sum, indicating adequacy levels of the study area. The integration of environmental variables with legal requirements proved to be effective to assess potential areas for environmental compliance, indicating that approximately 44% of the study area needs some sort of adjustment. © 2016, ABES - Associacao Brasileira de Engenharia Sanitaria e Ambiental. All rights reserved.211778

    Serum concentrations of acute phase proteins in goats and ewes with naturally acquired Staphylococcus aureus mastitis

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    ABSTRACT Serum protein concentrations, including acute phase proteins (APPs), of goats and ewes with naturally acquired Sthaphylococcus aureus mastitis were determined by means of SDS-PAGE electrophoresis to evaluate the relevance of these APPs as biomarkers of the disease in these species. Fifteen healthy goats and 5 goats with naturally acquired staphylococci mastitis, as well as fifteen healthy ewes and 5 ewes with staphylococci mastitis were submitted to daily blood sampling during 7 days. In goats, an increase of 570%, 125%, 621%, and 279% in serum concentrations of ceruloplasmin, fibrinogen, haptoglobin and α1-acid glycoprotein, respectively, was observed. In sheep the increase in serum concentrations of ceruloplasmin, fibrinogen, haptoglobin and α1-acid glycoprotein was of 337%, 90%, 461%, and 225%, respectively. Our results indicate that these APPs have considerable potencial as early and sensible biomarkers of mastitis caused by S. aureus in goats and sheep

    Using Rhodamine B to assess the movement of small mammals in an urban slum

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    The small mammals, especially rats are pest species that are present in cities world-wide. The rat moves around and into residences and other anthropogenic structures. It is especially ubiquitous in urban slums and a threat to infrastructure and public health due to the pathogens it carries and transmits. Effective control of rat populations in most urban areas has been unsuccessful, despite several rodent control efforts. Limited information about rat movement distance has hindered identification of control units and effective scales at which to enact control during interventions. We evaluated the suitability of Rhodamine B, a non-toxic biomarker, for assessing the distance travelled by rats in urban slums. We tracked rats over two campaigns between 2019 and 2020. Overall, 27.9% of trapped rats showed signs of Rhodamine B in their whiskers under fluorescence microscope. This shows that our method provides a viable alternative for investigating the movement of small mammals in this area. We found that rats move up to 90 m distance in urban slums, with smaller rats travelling more actively than bigger rats. Information obtained from this study should be useful in guiding efficient rodent control initiatives to reduce the risk of household rodent infestation and rodent-borne disease in urban slums
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