Made available in DSpace on 2014-06-12T15:53:08Z (GMT). No. of bitstreams: 2 arquivo4680_1.pdf: 919497 bytes, checksum: 3bf037b0760713dfee42012971272ce8 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2003 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / O processo de cicatrização de ferida é uma resposta fundamental à lesão tecidual que envolve extensos eventos celulares, moleculares, fisiológicos e bioquímico, tradicionalmente dividida em três fases: inflamatória, proliferativa e remodeladora, que se sobrepõem, resultando na restauração da integridade do tecido. Com o objetivo de otimizar a cicatrização in vivo, foi avaliado o efeito do tratamento tópico com o polissacarídeo da Goma do cajueiro (P-JU; Anacardium occidentale L), em lesões cutâneas experimentais. A cicatrização foi avaliada em camundongos fêmeas albino suíços, pesando 30±5g , com idade de 8 semanas, dividido em 6 grupos (n=15/grupo), sendo três grupos controle (NaCl, Ácido Ascórbico e Furacin®) e três grupos teste (emulsão Ácido Ascórbico + P-JU) em diferentes concentrações (75mg/ml, 150mg/ml e 214,3mg/ml). Uma lesão de 1cm2 de diâmetro foi realizada na região toráxica dorsal e topicamente tratada em dose única (200μl) da substância correspondente, no pós-operatório imediato, como descrito. Cada ferida foi avaliada diariamente do ponto de vista clínico. A contração da ferida foi calculada como descrito por Prata (1998). Os resultados foram submetidos à análise estatística usando Teste de Tukey (p≤ 0,05). Ao exame macroscópico, considerando: sinais inflamatórios, tecido de granulação e características da crosta. Observou-se que, entre os grupos teste (150mg/ml e 214,3mg/ml) feridas com aspecto seco, menos hiperêmicas e sem edema, enquanto que, as do grupo controle, apresentaram intensa hiperemia, edema e aspecto úmido. Quanto às características da crosta, o grupo teste apresentou, aspecto delgado, distribuição uniforme e com desprendimento em torno do 8º dia, quanto aos grupos controle, desenvolveram crostas espessa, irregulares e com desprendimento em torno do 10º dia, algumas se conservando até o 12 º dia, final do experimento. Quanto à análise histopatológica, procedeu-se a biópsias no 2º, 7º e 12º dias de pós-operatório. No 2º dia os grupos teste (150mg/ml e 214,3mg/ml) apresentaram maior vascularização, menor volume de exsudato e infiltrados neutrofílicos e eosinofílicos discretos. No 7º dia os referidos grupos mostraram padrão fibrovascular de organização , enquanto que, a angiogênese era marcante nos grupos controle. Finalmente, no 12º dia as amostras tratadas com P-JU já se apresentavam reepitelizadas e com um padrão mais ordenado de colagenização. O presente estudo sugere que o P-JU aplicado topicamente em feridas cutâneas abertas, acelera o processo de cicatrização

Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-07-11T14:46:24Z No. of bitstreams: 1 ALEXANDRE JOSÉ DE ALMEIDA GAMA - DISSERTAÇÃO (PPGCEMat) 2015.pdf: 1539873 bytes, checksum: 92e9d943e2b70ee7294f6924bed931a2 (MD5) / Made available in DSpace on 2018-07-11T14:46:24Z (GMT). No. of bitstreams: 1 ALEXANDRE JOSÉ DE ALMEIDA GAMA - DISSERTAÇÃO (PPGCEMat) 2015.pdf: 1539873 bytes, checksum: 92e9d943e2b70ee7294f6924bed931a2 (MD5) Previous issue date: 2015-08-18 / Atualmente mais de 80% das argilas bentoníticas beneficiadas no Brasil na forma sódica para uso em diversas aplicações industriais são provenientes dos depósitos do município de Boa Vista - PB. Estes jazimentos, que vem sendo lavrados há mais de 50 anos, encontram-se atualmente na fase de exaustão principalmente as argilas de variedades mais nobres, resultando em um sério prejuízo para qualidade do produto final. Recentemente, foram descobertos novos jazimentos situados nos municípios de Cubati, Pedra Lavrada, Sossego, Olivedos, na Paraíba, havendo necessidade de realizar estudo sistemáticos visando desenvolver toda sua potencialidade industrial. Assim sendo, este trabalho teve como objetivo o tratamento de dados obtidos por análise química e análise granulométrica. A caracterização física, química e mineralógica foi realizada através das seguintes técnicas: granulometria por difração a laser (GL), composição química por fluorescência de raios X (EDX) e difração de raios X (DRX). Em seguida foram realizadas análises de variância e teste de Tukey, usando software estatístico MINITAB® 17.0. Os resultados evidenciaram que a composição química das argilas bentoníticas dos novos depósitos apresentaram valores similares e diferentes em relação à do município de Boa Vista. Em analogia aos dados da literatura, as argilas estudadas apresentaram valores inferiores às importadas. Os resultados da análise de variância e teste de Tukey mostraram que os teores de óxido de sílica, de alumínio, de magnésio e de cálcio são significativamente diferentes ao nível de 95% de confiança. Os resultados mostraram que os locais de origem influenciaram na composição química das argilas. / The most part of industrialized bentonite clay produced in Brazil comes from Boa Vista - PB. However, the bentonite deposit is in the exhaustion phase because it has been mined over 50 years, which results in a low quality product. Recently, three new deposits have been discovered. These deposits are located in the following cities: Cubati, Pedra Lavrada, Sossego and Olivedos, in the state of Paraíba. Thus it needs a systematic study to develop all its industrial potential. Therefore, this study aims to evaluate the chemical and mineralogical composition, as well as particle size distribution and average diameter. From these deposits of smectite clays by statistical analysis. The physical, chemical and mineralogical characterization was performed using. Particle size by laser diffraction (GL), X-ray diffraction (XRD) and chemical composition by X-ray fluorescence (EDX) techniques. Then analyzes were carried out apruying statistics analysis of variance and Tukey test using the software racked camed MINITAB 17.0. The results showed that the chemical composition of bentonite clay of the new deposits which similar and different values in relation to the city of Boa Vista. When the data was analysed the results showed lower values compared with the imported clays. The results of the analysis of variance and Tukey test showed that the silica, aluminum, magnesium and calcium are significantly different at 95% level. Finally, the local has influence on the quality of the mineralogical clays.

Interstate highways are one of the most important components of the transportation infrastructure in America. Freeway ramps play an important role in the whole interstate transportation system. This paper researches the traffic flow characteristics of four typical exit ramps in USA, which are tapered one-lane exit, tapered two-lane exit, parallel one-lane exit and parallel two-lane exit. Computer simulation software, such as CORSIM and HCS are applied as the main tools in this research. ANOVA and Tukey are used for statistical purpose. It compares the maximum capacity, average running speed and the total lane change number of those four exit ramps. It is found that no matter in terms of traffic discharging rate or total lane charging number; the tapered two-lane exit has the best operational performance. Tapered one-lane exit ramp has the least capacity. Parallel one-lane exit and parallel two-lane exit have very limited traffic operational difference in terms of capacity and running speed. It is recommended that parallel two-lane exit ramp should not be designed along the freeway if the right of way along arterial road is enough. It is observed from the simulation data that the grade of freeway, truck percentage, restricted to the truck use of certain lane(s) and the location of exit sign have significant impact on the running speed and total lane change number. An uphill can decrease the running speed dramatically while more truck brings more lane change, causing safety concerns. It is found that when trucks are restricted to the right two most lane, there will be less lane change number comparing with trucks are not restricted. Location of exit sign operates well at the distance between 4000 ft to 5000 ft. does have a significant impact on the operational speed and total lane change number before, within or after functional area of an exit, based on the data analysis of simulation runs.

The Method of Moments (MOM) has been extensively used in statistics for obtaining conventional moment-based estimators of various parameters. However, the disadvantage of this method is that the estimates “can be substantially biased, have high variance, or can be influenced by outliers” (Headrick & Pant, 2012). The Method of Percentiles (MOP) provides a useful alternative to the MOM when the distributions are non-normal, specifically being more computationally efficient in terms of estimating population parameters. Examples include the generalized lambda distribution (Karian & Dudewicz, 1999), third order power method (Koran, Headrick & Kuo, 2015) and fifth order power method (Kuo & Headrick, 2017). Further, the HH, HR and HQ distributions, as extensions of the Tukey g-h (GH) family, are of interest for investigation using the MOP in this dissertation. More specifically, closed form solutions are obtained for left-right tail-weight ratio (a skew function) and tail-weight factor (a kurtosis function). A Monte Carlo simulation study which includes the comparison of monotonic and nonmonotonic transformation scenarios is also performed. The effect on Type 1 error and power rates under severely nonmonotonic scenarios are of special interest in the study. Dissimilarities of not strictly monotonic scenarios are discussed. The empirical confirmation that Rank Transform (RT) is appropriate for 2x2 designs is obtained.

The Dirichlet process is perhaps the most popular prior used in the nonparametric Bayesian inference. This prior which is placed on the space of probability distributions has conjugacy property and asymptotic consistency. In this thesis, our concentration is on applying this nonparametric Bayesian inference on the Tukey depth and Tukey median. Due to the complexity of the distribution of Tukey median, we use this nonparametric Bayesian inference, namely the Lo’s bootstrap, to approximate the distribution of the Tukey median. We also compare our results with the Efron’s bootstrap and Rubin’s bootstrap. Furthermore, the existing asymptotic theory for the Tukey median is reviewed. Based on these existing results, we conjecture that the bootstrap sample Tukey median converges to the same asymp- totic distribution and our simulation supports the conjecture that the asymptotic consistency holds.

Made available in DSpace on 2016-08-10T10:40:37Z (GMT). No. of bitstreams: 1 CASSIA DA SILVA CASTRO ARANTES.pdf: 3047367 bytes, checksum: a63eab38d70349a1a580a883aa0f8bd3 (MD5) Previous issue date: 2016-03-10 / This study deals with the application of statistical methods for analysis of the quality production of the Meal and Degummed soybean Oil. As Case Study object has Guará Industry, which provided the necessary data. These were analyzed by applying statistical methods such as ANOVA and Tukey Test, stability analysis using control charts and process capability analysis. With the analysis came to the conclusion that the warehouse actually influence the quality of soybeans, the main feedstock of the company. It was also found that much of the quality characteristics of the products produced show that the processes are not stable and are unable. During the study, also rose at the main quality problems the company owned, as well as the causes of these. Finally, this work shows important information about the enterprise and suggests improvements to ensure effective gains in the quality of final products and consequently better results for the organization, preventing and eliminating unnecessary quality costs. / Este estudo aborda a aplicação de métodos estatísticos para análise da qualidade da produção de farelo e óleo degomado de soja. Como objeto do estudo de caso tem-se a Indústria Guará, a qual forneceu os dados necessários. Estes foram analisados aplicando-se métodos estatísticos, tais como Anova e Teste de Tukey, análise da estabilidade através de cartas de controle e análise da capacidade do processo. Com as análises, chegou-se à conclusão de que os armazéns realmente influenciam na qualidade da soja, principal matéria prima da empresa. Verificou-se também que grande parte das características de qualidade dos produtos produzidos demonstram que os processos não estão estáveis e não são capazes. Durante o estudo, foram levantados ainda os principais problemas de qualidade que a empresa possui, bem como as causas destes. Por fim, este trabalho demonstra importantes informações sobre a empresa e sugere melhorias para garantir ganhos efetivos na qualidade dos produtos finais e, consequentemente, melhores resultados para a organização, evitando e eliminando custos de qualidade desnecessários.

Dado un conjunto de datos, o una distribución, en un espacio de dimensión mayor a uno, las proyecciones aleatorias consisten en proyectar los datos, o calcular la marginal de la distribución, en un subespacio de menor dimensión que ha sido elegido de forma aleatoria. En nuestro caso de dimensión uno. En esta tesis presentamos dos aplicaciones de las proyecciones aleatorias. La primera es una definición de profundidad, que es computacionalmente efectiva, aproxima a la conocida profundidad de Tukey y es válida tanto en espacios multidimensionales como funcionales. La segunda es un test de Gaussianidad para procesos estrictamente estacionarios, que rechaza procesos no Gaussianos con marginal unidimensional Gaussiana. / A random projection consists in projecting a given data set, or in computing the marginal of a distribution, on a randomly chosen lower dimensional subspace. In our case, it is of dimension one.In this thesis, we present two applications of the random projections. The first one is a new definition of depth that is computationally effective, approximates the well-known Tukey depth and works as much in multidimensional spaces as in functional. The second is a test of Gaussianity for strictly stationary processes, which rejects non-Gaussian processes with Gaussian one-dimensional marginal.

The division of computer engineering at Linköping’s university is currentlydeveloping an innovative parallel DSP processor architecture called ePUMA. Onepossible future purpose of the ePUMA that has been thought of is to implement itin base stations for mobile communication. In order to investigate the performanceand potential of the ePUMA as a processing unit in base stations, a model of theLTE physical layer uplink receiving chain has been simulated in Matlab and thenpartially mapped onto the ePUMA processor.The project work included research and understanding of the LTE standard andsimulating the uplink processing chain in Matlab for a transmission bandwidth of5 MHz. Major tasks of the DSP implementation included the development of a300-point FFT algorithm and a channel equalization algorithm for the SIMD unitsof the ePUMA platform. This thesis provides the reader with an introduction tothe LTE standard as well as an introduction to the ePUMA processor. Furthermore,it can serve as a guidance to develop mixed point radix FFTs in general orthe 300 point FFT in specific and can help with a basic understanding of channelequalization. The work of the thesis included the whole developing chain from understandingthe algorithms, simplifying and mapping them onto a DSP platform,and testing and verification of the results.

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This study sought to determine boundary conditions for robustness of the Tukey HSD statistic when the assumptions of homogeneity of variance were violated. Box's coefficient of variance variation, C^2 , was utilized to index the degree of variance heterogeneity. A Monte Carlo computer simulation technique was employed to generate data under controlled violation of the homogeneity of variance assumption. For each sample size and number of treatment groups condition, an analysis of variance F-test was computed, and Tukey's multiple comparison technique was calculated. When the two additional sample size cases were added to investigate the large sample sizes, the Tukey test was found to be conservative when C^2 was set at zero. The actual significance level fell below the lower limit of the 95 per cent confidence interval around the 0.05 nominal significance level.