998 resultados para Microrganismos indicadores


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This experiment was carried out with six half-bred Bretao-Campolinacolts with ileum fistulated to evaluate the difference in the ileum dry matter flow estimated by chromic oxide, cellulose, NDF, lignin and fecal lignin through the collection of ileum samples digesta at 28 h intervals, totalizing six samples per animal, starting at 10:00 a.m. The animals were fed ad libitum with the following diets: R1: clephantgrass, R2: elephantgrass plus ground corn, and R3: elephantgrass plus ground corn plus soybean meal. The data was statistically described, based on the coefficient of variation. The values of dry matter prececal digestion coefficients were, respectively, for diets 1, 2 and 3, at six schedules, for cellulose (-16.4; 21.4 and 6.6%), NDF(-34.7; 28.8 and -12.8%), to lignin (-51.5; -5.1 and -25.7%), in two schedules for cellulose (-13.4; 25.6 and 21.5%), fecal lignin (-37.1, 16.6 and -6.4%) and chromic oxide (-219.3, 36.4 and 9.5%). The coefficients of variation were, respectively, for the diets i, 2 and 3, at six schedules, for cellulose (148.3; 107.5 and 522.7%), NDF (95.4; 80.9 and 314.3%), lignin (210.2; 752.3 and 209.6%), at two schedules for cellulose(148.5; 80.7 and 70.0%), fecal lignin, (262.4; 177.9 and 723.5%) and chromic oxide (141.1; 158.9 and 473.4%). In diet i, the ileum dry matter now were over estimated for all markers, showing that chosen collection lime to estimate the flows were not adequate. Based on the coefficient of variation of the diets 2 and 3, the cellulose at two schedules was the most marker indicator to determine the ileum dry matter flow.

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The quantification of the degree of activity of inflammatory bowel disease is assuming growing importance nowadays. The activity index of the disease can be attained by clinical and laboratorial indicators. For ulcerative colitis the mostly used clinical parameters are daily bowel movements and presence of bloody diarrhea whereas albumin, hemoglobin, ESR and positive acute phase protein measurements are the laboratory parameters. For Crohn's disease activity besides the daily bowel movements the presence of abdominal pain and discomfort sensation are also frequently used whereas the C-reactive protein is the most used laboratory test which is able to detect the disease reactivation even before the appearance of any clinical sign. The combinations of clinical signs with the laboratory tests earned the sympathy of the specialists and the set of ensembled indicators has been recognized by the author's name. In this sense, the classification of the ulcerative colitis activity originally proposed by Truelove and Witts deserves presently a wide acceptance whereas such agreement is still lacking for Crohn's disease activity. In the mean time, the Bristol index is clinically the most feasible, once the Crohn's disease activity index and the Van Hees index are considered too complex. However the latter indexes are still useful mainly for comparisons among multicentric data. It seems that the currently existing clinical signs used for Crohn's disease activity would be quantitatively improved by adding some easily made laboratory tests such as C-reactive protein.

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This experiment was carried out in the Microbiology Laboratory of UNESP-Jaboticabal, to evaluate the different species of microorganisms in high-moisture corn grain silage. The treatments were five percentages of corn cob in the silage (0, 5, 10, 15 and 20% DM) and four sampling periods after the opening of the silos (0, 2, 4 and 6 days), using a factorial arrangement in randomized block design with three replications. The growth of Lactobacillus was higher (P<0.01) in the silage prepared only with grains in relation to the other treatments. The presence of Clostridium differed (P<0.01) among the treatments, with values ranging from 1.30 and 3.32 log CFU/g of silage. It was concluded that the population of Lactobacillus was satisfactory to obtain a good fermentation of the silages, and the presence of corn cob facilitated the development of Clostridium and also of yeast and Enterobacteriaceae after the silos were opened.

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The World Health Organization (WHO) recommends that prescriptions of medicaments must be one parameter utilized to know how the medication is used by people. To do so, one specific methodology has been indicated, that is, the selected indicators of the use the medicaments. We applied this methodology with the aim of presenting a descriptive study of the physician prescription in Pediatric Clinic of the Health Basics Units. The results obtained are: the average number of medicaments prescribed with prescription was 2.6; the percentage of the medicaments prescribed with the generic name was 32%; the percentage of the prescriptions with antibiotics was 44.6%; the percentage of the prescriptions with injections was 10.4%; the percentage of the medicaments prescribed that are part of the municipal list was 22.8%, 27.5% for the program Dose Certs of the secretary of the State of São Paulo, and 50.4% by adding by adding the two lists. The essentiality of the medicaments prescribed may be considered very low, because only 32.6% appear in the RENAME. The percentage of the medicaments really dispensed was 39.9%. The medicaments more prescribed, according to the classification of the Anatomic-Therapeutic-Chemical (ATC), were the ones which acted in Respiratory System (26.8%), followed by anti-infectives for systemic use (16.4%) and by medicaments with acted in Alimentary tract and metabolism (15.8%). The conclusion is that the prescribers are moved by commercial influence of the drug makers, first because of the low prescription of medicaments by their generic name, second by the low number of medicaments effectively dispensed and then the low concordance between the ones prescribed and the ones included in the lists patterned by Tabatinga and by the State of São Paulo.

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The present work evaluated urban forest indicators, acquired through airborne high-resolution multiespectral images, on the quality of the urban design and its vegetative fraction, in special its trees, in nine neighborhoods of Piracicaba, SP. There were made supervised classifications for characterization of intra-urban elements and the proportions obtained, as exposed soil, tree cover, lawns, asphalt, concrete pavements and roofs. They were studied for the measurement of the urban forest in each place. These variables were related to each other, as well as with the independent variables: population density, people with more than fifteen years of study and family heads with income above twenty minimum wages, obtained through population census. Through the analysis of linear regression variables were identified for intra-urban areas evaluation. Correlations were made and linear regressions among the data obtained from the image and among the proposed indicators. Negative correlations were obtained among population density and arboreal covering and the evaluated indices, in accordance with the predicted in the literature. Composite indicators are proposed, as: the proportion between arboreous space on waterproof space (PAW) and the proportion between arboreous space on building space (PAB). It is concluded by the possibility of the use of those indicators for evaluation of the urban forest and definition of priorities in the execution of ordinances to the improvement of the urban forestry, being prioritized the application of resources in the most lacking neighborhoods.

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Pigs of three genetics lineages A, B and C marketed in Brazil, with alive weight from 100 to 120 kg were submitted to the manual electric stunning (Karl Schermer 220-230/250 volts, 45-60 Hz and 1.4 -1.5 A) and to the collective gaseous system (COMBI-BUTINA 90% CO 2). Blood samples, for levels determination of creatine phosphokinase (CPK), lactate and cortisol, as well as samples of the semimembranosus muscle (10 g) for the determination of the gene halothane, were collected. Being compared the electric and gaseous stunning systems, the electric stunning did demonstrate to be more stressful providing larger plasmatic concentrations of cortisol (p ≤ 0.001) and lactate (p ≤ 0.001) for the genetic lineages A and C, in the studied conditions. However it didn't observe significant differences beween the sanguine indicators and stunning systems in subject when the lineage B was considered. Significant differences among the genetic lineages A, B and C were obtained being compared the plasmatic values of creatine phosphokinase (p ≤ 0.001), lactate (p ≤ 0.001) and cortisol (p ≤ 0.001) when stunned with the gaseous system, however when the electric system was used only the cortisol values presented significant differences (p ≤ 0.001). The presence of the gene halothane (Nn) was only observed in the lineage B.

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Forest roads are frequently pointed as source of environmental problems related to erosion and they also influence harvest cost due to maintenance operations. Roads not well designed are sources of hydrological problems on catchments and the current attention to sustainability of forest exploration projects point out to the need of diagnostics tools for guiding the redesign of the road system. At this study, runoff hydrological indicators for forest road segments were assessed in order to identify critical points of erosion and water concentration on soils. A road network of a forest production area was divided into 252 road segments that were used as observations of four variables: mean terrain slope, main segment slope, LS factor and topographic index. The data analysis was based on descriptive statistics for outliers' identification, principal component analysis and for variability study between variables and between observations, and cluster analysis for similar segments groups' identification. The results allowed classifying roads segments into five mains road types: road on the ridge, on the valley, on the slopes, on the slopes but in a contour line and on the steepest slope. The indicators were able to highlight the most critical segments that differ of others and are potential sources of erosion and water accumulation problems on forest roads. The principal component analysis showed two main variability sources related to terrain topographic characteristics and also road design, showing that indicators represent well those elements. The methodology seems to be appropriated for identification of critical road segments that need to be redesigned and also for road network planning at new forest exploration projects.

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This paper discusses the importance of the voltage referential for power quality monitoring and power systempsilas instrumentation. Considering the operating conditions of simple power circuits, it will be demonstrated that an incorrect choice of the voltages referential may result in erroneous quantification of some power quality indices, especially in three-phase four wire circuits. The use of a virtual reference point and the neutral conductor as reference have been considered and the simulation results confirm the influence of the voltage reference selection in the evaluation of total harmonic distortion, unbalance factors and voltage sags. Finally a way of linking both methods will be discussed by means of Blakesleypsilas theorem. © Copyright 2010 IEEE - All Rights Reserved.

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