Standard Mixture Model
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. QUANTIFICAÇÃO DE MULLITA PROVENIENTE DE RESÍDUOS DE CAULIM DA REGIÃO AMAZÔNICA: USO DO MÉTODO DE RIETVELD
Mullite is used to obtain a refractory material, there are several factors that influence the synthesis process of mullite: the preparation of the mixture, the precipitation and the reaction of SiO2 and Al2O3. For the synthesis of mullite, samples of kaolin processing residues were used as precursor material, because it presents SiO2 and Al2O3 in its composi
Quím. Nova. Publicado em: 2021-04
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2. Pesquisa em doenças inflamatórias intestinais no Brasil: um passo à frente rumo ao cuidado dos pacientes
Maytenus distichophylla is a medicinal species used in Northeast of Brazil. The hexane (HE), chloroform (CE), ethyl acetate (EAE) and methanol (ME) extracts and compounds from its roots were evaluated for their protective activity against Staphylococcus aureus and Candida albicans. The cytotoxicity for chronic myeloid leukemia (K562), acute monocytic leukemi
Arq. Gastroenterol.. Publicado em: 2020-09
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3. CONSTITUENTS FROM ROOTS OF Maytenus distichophylla, ANTIMICROBIAL ACTIVITY AND TOXICITY FOR CELLS AND Caenorhabditis elegans
Maytenus distichophylla is a medicinal species used in Northeast of Brazil. The hexane (HE), chloroform (CE), ethyl acetate (EAE) and methanol (ME) extracts and compounds from its roots were evaluated for their protective activity against Staphylococcus aureus and Candida albicans. The cytotoxicity for chronic myeloid leukemia (K562), acute monocytic leukemi
Quím. Nova. Publicado em: 2020-09
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4. Dispersive Liquid-Liquid Microextraction with Liquid Chromatography-Tandem Mass Spectrometry for the Determination of Triazine, Neonicotinoid, Triazole and Imidazolinone Pesticides in Mineral Water Samples
Mineral water is known for its high purity. Because mineral water is produced by the infiltration of water through the soil, there is the possibility of contamination with pesticides. The aim of this study was to develop a simple, rapid and efficient method for the extraction and preconcentration of different classes of pesticides in mineral water samples by
J. Braz. Chem. Soc.. Publicado em: 2015-09
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5. Presentation of an experimental method to induce in vitro ("organ chambers") respiratory acidosis and its effect on vascular reactivity
PURPOSE:To create in vitro a model to generate acidosis by CO2bubbling "organ chambers", which would be useful for researchers that aim to study the effects of acid-base disturbs on the endothelium-dependent vascular reactivity.METHODS:Eighteen male Wistar rats (230-280g) were housed, before the experiments, under standard laboratory conditions (12h light/da
Acta Cir. Bras.. Publicado em: 2014-11
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6. Verification and validation in CFD for a free-surface gas-liquid flow in channels
This work deals with experimental and numerical studies of a 3-D transient free-surface two-phase flow in a bench-scale channel flow. The aim was to determine how well the homogeneous model can predict the fluid dynamics behavior and to validate the model. The model was validated with experimental data acquired for two hydrodynamic situations. The mathematic
Braz. J. Chem. Eng.. Publicado em: 2013-06
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7. Distribuições em série de potências modificadas inflacionadas e distribuição Weibull binominal negativa / Inflated modified power serie distribution and Weibull negative binomial
In this paper, some result such as moments generating function, recurrence relations for moments and some theorems of the class of modified power series distributions (MPSD) proposed by Gupta (1974) and of the class of inflated modified power series distributions (IMPSD) both at a different point of zero as the zero point are presented. The standard Poisson
Publicado em: 2011
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8. Avaliação de operadora de plano de saúde : cooperativa médica de assistência à saúde
Globalization, financial and political stability and current degree of economical development that Brazil are living (because of these condition Standard &Poor¿s gave to Brazil the classification of investment grade on April 30th, 2008) combined with Brazilians income degree are converting Brazil in an attractive market for outside capital. Private health s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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9. Modelos de sobrevivência com fração de cura usando um termo de fragilidade e tempo de vida Weibull modificada generalizada
Em análise de sobrevivência determinados estudos caracterizam-se por apresentar uma fração significativa de unidades que nunca apresentarão o evento de interesse, mesmo se acompanhados por um longo período de tempo. Para a análise de dados com longa duração, abordamos o modelo de mistura padrão de Berkson &Gage supondo que os tempos de vida dos ind
Publicado em: 2011
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10. Avaliação de operadora de plano de saúde : cooperativa médica de assistência à saúde
A globalização, a maior ou menor estabilidade financeira e política e o atual nível de desenvolvimento econômico que o Brasil vem apresentando, condição que lhe concedeu a classificação de investment grade, obtido em 30 de abril de 2008, pela Agência Standard & Poor’s, conjugado com o nível de renda que a população vem atingindo, está transfo
Publicado em: 2011
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11. Evaluation of a linear spectral mixture model and vegetation indices (NDVI and EVI) in a study of schistosomiasis mansoni and Biomphalaria glabrata distribution in the state of Minas Gerais, Brazil
This paper analyses the associations between Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) on the prevalence of schistosomiasis and the presence of Biomphalaria glabrata in the state of Minas Gerais (MG), Brazil. Additionally, vegetation, soil and shade fraction images were created using a Linear Spectral Mixture Model (LS
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-07
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12. Modelo de mistura padrão com tempos de vida exponenciais ponderados
In this work, we brie_y introduce the concepts of long-term survival analysis. We dedicated ourselves exclusively to the standard mixture cure model from Boag (1949) and Berkson &Gage (1952), showing its deduction and presenting the imunes probability function, which is taken from the model itself and we investigated the identi_ability issues of the mixture
Publicado em: 2010