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Search Results: 1 - 10 of 28169 matches for " Elias Teixeira;Ribeiro Junior "
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Modelo autologístico espa?o-temporal com aplica??o à análise de padr?es espaciais da leprose-dos-citros
Franciscon, Luziane;Ribeiro Junior, Paulo Justiniano;Krainski, Elias Teixeira;Bassanezi, Renato Beozzo;Czermainski, Ana Beatriz Costa;
Pesquisa Agropecuária Brasileira , 2008, DOI: 10.1590/S0100-204X2008001200006
Abstract: the goal of this study was to propose modeling strategies applied to the analysis of citrus leprosis incidence, through the use of a spatial temporal autologistic model. we evaluated the adequacy of autologistic model to consider data collected at different times; to detect spatial-temporal patterns through different neighboring structures; to consider the effect of covariates from previous times; and assessing the effect of the presence of the disease vector in the probability of new infections occurrence. the spatial temporal autologistic model adopted has extended the usual logistic model, in which the neighboring structures is described by means of covariates built from the status of plants nearby, at the same or at previous times. data regarding the presence of the leprosis on plants were collected at field points referenced in space, over a period of approximately two years. models detect the presence of spatial patterns on new infections for the studied neighboring structures, at the same or previous time. additionally, probability estimates of a plant become infected can be obtained from the fitted models, given the occurrence of the disease and vector.
Autologistic model with an application to the citrus "sudden death" disease
Krainski, Elias Teixeira;Ribeiro Junior, Paulo Justiniano;Bassanezi, Renato Beozzo;Franciscon, Luziane;
Scientia Agricola , 2008, DOI: 10.1590/S0103-90162008000500014
Abstract: the citrus sudden death (csd) disease affects dramatically citrus trees causing a progressive plant decline and death. the disease has been identified in the late 90's in the main citrus production area of brazil and since then there are efforts to understand the etiology as well as the mechanisms its spreading. one relevant aspect of such studies is to investigate spatial patterns of the occurrence within a field. methods for determining whether the spatial pattern is aggregated or not has been frequently used. however it is possible to further explore and describe the data by means of adopting an explicit model to discriminate and quantify effects by attaching parameters to covariates which represent aspects of interest to be investigated. one alternative involves autologistic models, which extend a usual logistic model in order to accommodate spatial effects. in order to implement such model it is necessary to take into account the reuse of data to built spatial covariates, which requires extensions in methodology and algorithms to assess the variance of the estimates. this work presents an application of the autologistic model to data collected at 11 time points from citrus fields affected by csd. it is shown how the autologistic model is suitable to investigate diseases of this type, as well as a description of the model and the computational aspects necessary for model fitting.
Comunidades e o campo da política: uma reflex?o a partir da psicanálise
Ribeiro, Cynara Teixeira;Lara Junior, Nadir;
Fractal : Revista de Psicologia , 2011, DOI: 10.1590/S1984-02922011000300009
Abstract: this article reflects on the differences amongst the concepts of favela and communities and examines the implications of this differentiation for psychosocial interventions in communities. therefore, it is a review of the concept of community and discusses the construct from the lacanian theory of the four discourses. our aim is to reflect over the consequences for the community psychologist and other professionals who work with that population to establish themselves as "agents" of the social link in each of the four discourses modalities. futhermore, we propose the discourse of the analyst the one to which enables the political field constitution.
Interven??es psicossociais em comunidades: contribui??es da psicanálise
Lara Junior, Nadir;Ribeiro, Cynara Teixeira;
Psicologia & Sociedade , 2009, DOI: 10.1590/S0102-71822009000100011
Abstract: this article proposes a theoretical-methodological reflection on the forms of psychosocial intervention in communities and the contributions that freud-lacanian psychoanalyzes can offer to this field. therefore we will have a bibliographic revision on the topic according to the community social psychology and our professional and academic experience. however our objective is to found a praxiological proposal of intervention in communities and, to do so, we will use some concepts and relevant ideas based in psychoanalyses, which enable the reflection on the intervention practices of the psychologist, and also of other professionals who work in the social area. in this text, we dialogue with authors like: jacques lacan, slavoj zizek e chantal mouffe.
Comparison of Three Experimental Models for Rat Osteoarthritis Induction  [PDF]
Henrique Ribeiro Rodrigues-Neto, Edilson Ferreira Andrade-Junior, Denilson Jose Silva Feitosa-Junior, André Lopes Valente, Thiago Cesar Xavier, Bianca Caroline do Nascimento Alho, Renan Kleber Costa Teixeira, Fabio Vidal Moriya, Rui Sérgio Monteiro de Barros
Journal of Biosciences and Medicines (JBM) , 2016, DOI: 10.4236/jbm.2016.412010
Abstract: Background: Osteoarthritis is a slowly progressive and debilitating disease with high prevalence in adult population. Knee is one of the joints most affected by this disorder. There are several models for animals’ osteoarthritis induction, however it is not identified any paper that compares these techniques. The present study was aimed to define the most appropriate model for rats osteoarthritis induction. Material and Methods: 40 Wistar rats were distributed into 4 groups of 10 animals each: normality group (NG); meniscectomy group (MG); quinolone group (QG) and iodoacetate group (IG). Radiographic images of the rat’s knees were analyzed as well as the amount of chondrocytes in the epiphyseal and articular cartilage. Results: In the radiographic analysis, there was a low correlation between the raters. Regarding the amount of chondrocytes in the epiphyseal cartilage, it was noticed that the IG and QG groups had fewer chondrocytes than NG, in contrast to MG that reported similar results to normality (p > 0.05). There was no significant difference between IG and QG groups (p > 0.05). Regarding the amount of chondrocytes in articular cartilage, it was noticed that the IG group showed fewer chondrocytes than NG (p < 0.01), in contrast to the QG and MG groups that showed similar results to normality (p > 0.05). There was no significant difference between QG and MG groups (p > 0.05). Conclusion: Intraarticular injection of iodoacetate in rats is the model with greatest effect on reduction of chondrocytes amount.
Estabilidade de agregados de um latossolo vermelho tratado com cama de peru
Costa, Adriana Monteiro da;Ribeiro, Bruno Teixeira;Silva, Adriane de Andrade;Borges, Elias Nascentes;
Ciência e Agrotecnologia , 2008, DOI: 10.1590/S1413-70542008000100011
Abstract: recently, there has been occurring a great increase in poultry production, especially in turkey's meat, motivated by the increase of exports and conquest of new markets. as a consequence, a great amount of organic residues has been generated, providing potential impact on the environment. turkey litter is the main residue from such activity, and has been used as soil conditioner, intended to improve physical and chemical characteristics. therefore, the objective of this work was to evaluate the effect of turkey litter application in aggregate stability of a typic dystrophic red latosol, under pasture of brachiaria decumbens, located in uberlandia, triangulo mineiro, minas gerais state. turkey litter was applied in the following dosages: 0 (control), 1,200; 2,400 and 4,800 kg ha-1 and 2,400 kg ha-1 + mineral fertilizer (36 kg ha-1 n, 60 kg ha-1 k2o and 60 kg ha-1 of p2o5). the applications were accomplished in january 2004, and the soil was sampled in two different times (60 and 210 days after application) in layers of 0-20 and 20-40 cm for aggregate stability analysis, evaluated through the total percentage of aggregates larger than 2 mm, smaller than 0.25 mm and geometric mean diameter (gmd). there was no effect of turkey litter dosages in soil aggregation. however, independently of the applied dose, there was an increase in the aggregate stability along time, especially in the 0-20 cm layer.
Spatial variability of leaf nutrient contents in a drip irrigated citrus orchard
Armindo, Robson A.;Coelho, Rubens D.;Teixeira, Marconi B.;Ribeiro Junior, Paulo J.;
Engenharia Agrícola , 2012, DOI: 10.1590/S0100-69162012000300007
Abstract: this study aimed to evaluate the spatial variability of leaf content of macro and micronutrients. the citrus plants orchard with 5 years of age, planted at regular intervals of 8 x 7 m, was managed under drip irrigation. leaf samples were collected from each plant to be analyzed in the laboratory. data were analyzed using the software r, version 2.5.1 copyright (c) 2007, along with geostatistics package geor. all contents of macro and micronutrients studied were adjusted to normal distribution and showed spatial dependence.the best-fit models, based on the likelihood, for the macro and micronutrients were the spherical and matern. it is suggest for the macronutrients nitrogen, phosphorus, potassium, calcium, magnesium and sulfur the minimum distances between samples of 37; 58; 29; 63; 46 and 15 m respectively, while for the micronutrients boron, copper, iron, manganese and zinc, the distances suggests are 29; 9; 113; 35 and 14 m, respectively.
Níveis de fósforo digestível para suínos em fase de crescimento
Bünzen, Silvano;Rostagno, Horacio Santiago;Kiefer, Charles;Teixeira, Alexandre de Oliveira;Ribeiro Junior, Valdir;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000200013
Abstract: this study was carried out to determine the digestible phosphorus requirement for growing swine. seventy crossbred swine (35 castrated males and 35 females), with initial weight of 29.72±1.52 kg were distributed in a completely randomized design with five treatments, seven replicates and two animals (one male and one female) per experimental unit. the experiment lasted 21 days. the treatments were composed of diets formulated with corn and soybean meal, supplemented with dicalcium phosphate, corresponding to five levels of digestible phosphorus (0.19; 0.25; 0.30; 0.35 and 0.40%). for each phosphorus level, limestone was added to maintain the calcium:phosphorus ratio constant. the increase in digestible phosphorus influenced feed intake and weigh gain quadratically, and the maximum values for those parameters were obtained with the levels of 0.32 and 0.31% digestible phosphorus, respectively. there was no effect of digestible phosphorus levels on the feed:gain ratio. the ashes and calcium contents analyzed in the metatarsi were not influenced by digestible phosphorus levels, while the phosphorus content in bone showed linear response. the requirement of digestible phosphorus for pigs fed diets based on corn and soybean meal is 0.31%, corresponding to a daily intake of 5.87 g digestible phosphorus.
Compara??o de distribui??es de probabilidade e estimativa da precipita??o provável para regi?o de Barbacena, MG
Ribeiro, Bruno Teixeira;Avanzi, Junior Cesar;Mello, Carlos Rogério de;Lima, José Maria de;Silva, Marx Leandro Naves;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000500004
Abstract: probabilistic studies involving climatic variables are of extreme importance for farming activities, construction, tourism, among others. seeking to contribute for the planning of irrigate agriculture, this work had as objectives to compare adjusted probability distribution models to the monthly and decennial historical series and to estimate the probable rainfall for the barbacena county, minas gerais state, brazil. rainfall data of december, january and february, from 1942 to 2003, were studied, constituting historical series with 62 years of observations. daily rainfall depths were added for 10 and 30 days, applying gama, log-normal 2 and log-normal 3 parameters probability distribution models. probability distributions models, were compared with qui-square statistical test, at 5% significance level. probable rainfall was estimated for each period, using the best distribution, which was evaluated based on the smallest qui-square value, for the probability occurrence levels of 75, 90 and 98%. gama probability distribution was the most adequate model.
Adverse events on the use of interim therapeutic in schoolchildren: silver diamine fluoride × interim therapeutic restorative - a pilot study
Santos Junior, Valdeci Elias dos;Vasconcelos, Flávia Maria Nassar de;Souza, Pollyana Rodrigues de;Ribeiro, Andréa Gadelho;Rosenblatt, Aronita;
Revista Odonto Ciência , 2012, DOI: 10.1590/S1980-65232012000100005
Abstract: purpose: silver diamine fluoride (sdf) is a caries prevention and arresting agent that is easy to apply clinically. interim therapeutic restorations (irt) are also known to be a simple and effective method for treating caries in children. this study examines whether treatment with 30% silver diamine fluoride (sdf) will cause fewer adverse events than the available interim therapeutic restorations in underprivileged schoolchildren with cavities. methods: we conducted a three-month pilot study comparing the adverse effects of irt using glass ionomer cement (fuji ix, gc america, inc.) with those of 30% silver diamine fluoride (cariostop biodynamic?, brazil) in 50 children aged 6 years. results: in the sdf group, all caries were arrested and no pain, abscess or fistula was reported. of the children assigned to the fuji ix group, 24% reported toothache (p < 0.05). there was no significant difference in the occurrence of fistula and abscess in the two groups. conclusion: the authors suggest that for underprivileged schoolchildren with caries, the use of sdf when an appropriate clinical setting is not available resulted in fewer adverse effects than did treatment with an interim therapeutic restorative using fuji ix.
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