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Search Results: 1 - 10 of 28751 matches for " Flavio Mauro Souza; "
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Propaga??o vegetativa por miniestacas de preciosa (Aniba canellila (H. B.K) MEZ)
Sampaio, Paulo de Tarso Barbosa;Siqueira, Jhansem Antonio Silva de;Costa, Suely;Bruno, Flavio Mauro Souza;
Acta Amazonica , 2010, DOI: 10.1590/S0044-59672010000400007
Abstract: this study aimed to the rooting of minicuttings of juvenile material of preciosa (aniba canelilla (h.b.k) mez), through the use of concentrations of 0, 300 ppm, 600 ppm, 1200 ppm and 2000 ppm of acid indole-3-butirico (iba) in liquid form. the cuttings were obtained from seedlings of natural regeneration with approximately one years of age and shaped with 5 cm long and 0.4 - 0.6 mm in diameter. the experiment was conducted in a greenhouse, with intermittent mist system governed by 20 seconds to mist at intervals of 20 minutes. as substrate was used sand washed. weekly applications were made from fertilizer and foliar fungicide. the design used was completely randomized with five treatments and twenty-five repetitions, totaling 125 minicuttings. after 180 days after planting, the minicuttings were taken from the substrate and evaluated the following parameters: percentage of rooting, percentage of survival, percentage of calluses, dry weight of the sprouts, number, size and dry weight of roots. the results indicate that the rooting of minicuttings of juvenile material of preciosa independent of the use of the iba. however, the use of auxin in the concentration of 2000 ppm stimulated rooting (79.04%), survival (89.43%) and sprouted (64%) of minicuttings.
A Study of Human Thermal Comfort, Ozone and Respiratory Diseases in Children  [PDF]
Amaury de Souza, Flavio Aristone, Luciane Fernandes
Atmospheric and Climate Sciences (ACS) , 2014, DOI: 10.4236/acs.2014.44060
Abstract: Objective: To assess the impact of air pollution and ozone on morbidity due to respiratory diseases among children from 2005 to 2008. Methods: The database was composed by daily reports on visits by children with respiratory diseases in health units of the Unified Health System (SUS) in the municipality of Campo Grande, MS, Brazil, by daily levels of ozone concentration measured by the Department of Physics, Federal University of Mato Grosso do Sul, and by daily measurements of temperature and relative humidity provided by the Agricultural Research Corporation-EMBRAPA Gado de Corte-MS. The relationship between respiratory diseases and ozone concentration was investigated through Generalized Linear Models (GLM) using the multiple Poisson regression model. The significance level α = 5% was adopted for all tests. Results: It was observed that the association between ozone (lagged by three time-steps) and attendance for respiratory diseases in children was statistically significant. The bio-meteorological variable Wind-adjusted Effective Temperature (lagged by four time-steps) was also significantly associated with diseases. Conclusions: The results suggest that the surface ozone concentration promotes adverse effects on children’s health even when pollutant levels are below the amounts permitted by law.
Modeling the Surface Ozone Concentration in Campo Grande (MS)—Brazil Using Neural Networks  [PDF]
Amaury de Souza, Flavio Aristone, Ismail Sabbah
Natural Science (NS) , 2015, DOI: 10.4236/ns.2015.74020
Abstract: The estimation of the surface ozone concentration promotes the creation of data useful for planning the air quality forecast, which is a key element for the management of public health. The aim of this study is to develop an Artificial Neural Network (ANN) to estimate the concentration of surface ozone from daily climate data. ANN is an equivalent form of Feedforward Multilayer Perceptron whose data has been inserted from the daily concentration of measured ozone. In the intermediate and output layers activation functions like tan-sigmoid and linear have been used, respectively. The performance of the developed ANN is actually very good and it can be considered like part of the set of indirect methods to estimate the concentration of surface ozone. The proposed model may be used by governmental agencies as a tool to enable the public interventional actions during the period of atmospheric stagnation, when ozone levels in the atmosphere represent risks to the public health.
Comunica??o e educa??o: entre meios e media??es
Souza, Mauro Wilton de;
Cadernos de Pesquisa , 1999, DOI: 10.1590/S0100-15741999000100002
Abstract: the text raises the hypothesis that throughout this century the conflictive relationship between education and communication, still present today, lies in understanding has by-passed the emergence and analysis of the means of social communication. identifying the founding attitudes in communications and those of today, the text attempts a first approach suggesting new clues to understanding the relationship between communication and education, school and media.
Forma o do campo da crítica no Brasil: a contribui o de Otto Maria Carpeaux
Mauro de Souza Ventura
Conex?o : Comunica??o e Cultura , 2009,
Abstract: O artigo estuda a obra jornalística de Otto Maria Carpeaux no contexto das transforma es ocorridas no campo da crítica literária brasileira nas décadas de 40 a 70 (século XX). Tendo em vista as formula es teóricas de Bourdieu (2007) em torno do conceito de hierarquia das legitimidades e os estudos de Gomes (1999, 2004) sobre lugares de sociabilidade, ser o estabelecidas reflex es sobre as mudan as operadas no ambito da crítica literária, em sua rela o com os agentes dos campos acadêmico e jornalístico. Por fim, a obra de Carpeaux é estudada a partir das rela es de interdependência entre o campo da produ o e as instancias de consagra o cultural no Brasil da segunda metade do século XX.
Preliminary characterization of Psidium germplasm in different Brazilian ecogeographic regions
Santos, Carlos Antonio Fernandes;Castro, José Mauro da Cunha e;Souza, Flavio de Fran?a;Vilarinho, Aloísio Alcantara;Ferreira, Francisco Ricardo;Pádua, Juliano Gomes;Borges, Rita Mércia Estigarribia;Barbieri, Rosa Lia;Souza, Aparecida das Gra?as Claret de;Rodrigues, Marciene Amorim;
Pesquisa Agropecuária Brasileira , 2008, DOI: 10.1590/S0100-204X2008000300020
Abstract: the objective of this work was to characterize 119 accessions of guava and 40 accessions of "ara?á" sampled in 35 brazilian ecoregions, according to the international union for the protection of new varieties of plants (upov) descriptors. the majority of "ara?á" accessions presented wide spacing of leaf veins, while guava accessions presented medium to close spacing. most fruits of "ara?á" accessions were classified as small, contrasting with medium to large fruits of guava accessions. most of "ara?á" accessions (91%) presented white flesh fruit color, while 58% of guava accessions presented pale pink, pink and dark pink colors. fruit differences among wild and cultivated psidium species indicate fruit as the most altered trait under artificial selection.
Development of a Short-Term Ozone Prediction Tool in Campo Grande-MS-Brazil Area Based on Meteorological Variables  [PDF]
Amaury de Souza, Flavio Aristones, Hamilton Germano Pav?o, Widinei Alves Fernandes
Open Journal of Air Pollution (OJAP) , 2014, DOI: 10.4236/ojap.2014.32005

The objective of this study was to develop a model to predict the concentration of ozone. The measurements of ozone were conducted at the Federal University of Mato Grosso do Sul. The predictor variables related to climate were supplied by Embrapa Gada de Corte. Analyses of the data show a strong correlation between ozone and wind speed (0.75), humidity (?0.64) and temperature (0.41), as the factors that affect levels of concentration ozone. The observed and predicted values of daily ozone had a correlation coefficient (R) of 0.69.

Contextual Interference Effect Depends on the Amount of Time Separating Acquisition and Testing  [PDF]
Jefferson John dos Santos, Flavio Henrique Bastos, Thiago de Oliveira Souza, Umberto Cesar Corrêa
Advances in Physical Education (APE) , 2014, DOI: 10.4236/ape.2014.42014

Considering the critical role permanence has on predictions related to the contextual interference effect, this study sought to determine whether the manifestation of the effect depends on the time interval separating the acquisition phase (AQ) from the retention test (RT). Four groups of blocked (BL) and four groups of random practice (RD) performed 90 trials of a dart throwing task (AQ) and were tested exclusively after 10 minutes (BL10 and RD10), 24 hours (BL24 and RD24), 7 days (BL7 and RD7) or 30 days (BL30 and RD30). In the AQ, blocked groups performed three blocks of trials, with each block consisting of throwing the darts from one of three distances (2 m, 2.6 m and 3.2 m). For the random groups, the trial order was pseudo-randomized. The results indicated superior performance of RD24, compared to BL24, but no difference was found between the groups tested after 10 minutes, 7 days or 30 days. Thus, our results do not support the notion that higher contextual interference promotes immediate learning benefits nor long-term retention of internal representations. Nevertheless, future research should further investigate the processes underlying the contextual interference effect, since short-term gains (24 h) were found.

Temporal Variation of the Concentration of Carbon Monoxide in the Center West of Brazil  [PDF]
Amaury de Souza, Flavio Aristones, Gustavo Becker Modesto Silva, Widinei Alves Fernandes, Catia Braga
Atmospheric and Climate Sciences (ACS) , 2014, DOI: 10.4236/acs.2014.44051
Abstract: South Mato Grosso has been developing very rapidly in recent decades, and it is clearly leaving behind the status of being solely an agricultural region to become an important state in the areas of commerce and industry. Nevertheless, it is still possible to observe the harmful effects of atmospheric pollution due to biomass burning activities, even if those actions are being systematically reduced in the state throughout the past several years. This kind of pollution persists not only due to local activities but also due to the pollution of other states and even other border countries. Satellite remote sensing has proven to be an important tool of environmental control vis-à-vis the ease of data acquisition, accuracy and wide temporal range. A study has been conducted of spatial and temporal concentration of carbon monoxide (CO) in the state of South Mato Grosso from 2001 through 2012 using the MOPITT sensor onboard the TERRA satellite. The carbon monoxide comes principally from the incomplete combustion of vehicles engines and biomass burnings. A direct correlation of the CO concentration in the state of South Mato Grosso is observed precisely during the months of drought (August to October), for which the number of fire outbreaks is the highest of the year.
Climatic Variations and Consumption of Urban Water  [PDF]
Amaury de Souza, Flavio Aristone, Ismail Sabbah, Debora A. da Silva Santos, Ana Paola de Souza Lima, Gabriela Lima
Atmospheric and Climate Sciences (ACS) , 2015, DOI: 10.4236/acs.2015.53022
Abstract: This study aims to develop a statistical modelling framework of urban water consumption forecast for the city of Aquidauana, Brazil from year 2005 to 2014, monthly data, using multiple linear regression, cluster analysis, and principal component analysis. These forecasts were based on historical data collected through SANESUL System (Water Systems of South Mato Grosso). The meteorological data were provided by the Water Resources Monitoring Center of South Mato Grosso—CEMTEC. The statistical model developed explains 71.5% of the variance with three factors: number of consumers (19.3%), seasonality (37.8%), and climate regression (14.3%). The model was further validated using an independent set of data from January 2005 to November 2014, with an R2 of 86% and error of 1.7%. The results indicated no intervention of climate variables in the phenomenon. This tool, combined with the perception of the potential and limitations of managers of water resources and public policy makers, can be used in the regulation of per capita consumption, and thereby achieve the optimization of available resources and also contribute to the sustainable perspective of water resources.
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