Graphical Methods
Mostrando 1-12 de 111 artigos, teses e dissertações.
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1. Assessment of Covariance Selection Methods in High-Dimensional Gaussian Graphical Models
ABSTRACT The covariance selection in Gaussian graphical models consists in selecting, based on a sample of a multivariate normal vector, all those pairs of variables that are conditionally dependent given the remaining variables. This problem is equivalent to estimate the graph identifying the nonzero elements on the off-diagonal entries of the precision mat
Trends in Computational and Applied Mathematics. Publicado em: 2022
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2. On the classification and treatment of outliers in a spatial context: A Bayesian Updating approach
Abstract Checking and treating extreme values is commonplace in modelling workflows. The main methods to manage outliers may be categorized into graphical, Kriging- and simulation-based approaches. While graphical methods usually classify outliers from a global perspective, geostatistical methods evaluate outliers in a local context. Ordinary-Kriging based a
REM, Int. Eng. J.. Publicado em: 2021-09
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3. Antioxidant and anti-diabetic properties of Spirulina platensis produced in Turkey
Graphical Abstract : TOC-Table of content. Abstract Spirulina produced in Turkey has a high antioxidant capacity determined by the three common methods (ABTS, CUPRAC, and DPPH). The major phenolics found in Spirulina were acacetin (53.62%) and pinocembrin (41.28%). The bio-accessibility values of the phenolic compounds in Spirulina were approximately 60%
Food Sci. Technol. Publicado em: 2021-09
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4. ANÁLISE GRÁFICA DO DESEMPENHO DE MÉTODOS COMPUTACIONAIS NO ESTUDO DE PROPRIEDADES TERMOQUÍMICAS
In this manuscript we have evaluated the computational methods performance in the calculation of thermochemical properties using graphical analysis. The analysis was carried out in a set of 74 organic molecules considering the following thermochemical properties: standard enthalpy of formation, ionization energy and electron and proton affinities. The evalua
Quím. Nova. Publicado em: 2020-03
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5. Carbon and nitrogen distribution pattern in soil profile cultivated with Eucalyptus
ABSTRACT The objective of this study was to evaluate the distribution pattern of total organic carbon (TOC) and total nitrogen (TN) in the native field soil profile and Eucalyptus sp. The study was carried out in native field and in eucalyptus plantations with 20, 44, 180 and 240 months, located in Santa Maria and Manoel Viana, RS, Brazil. The decay rate (k)
Floresta Ambient.. Publicado em: 30/09/2019
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6. AlradSpectra: a Quantification Tool for Soil Properties Using Spectroscopic Data in R
ABSTRACT Soil reflectance spectroscopy has become an innovative method for soil property quantification supplying data for studies in soil fertility, soil classification, digital soil mapping, while reducing laboratory time and applying a clean technology. This paper describes the implementation of a Graphical User Interface (GUI) using R named AlradSpectra.
Rev. Bras. Ciênc. Solo. Publicado em: 29/07/2019
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7. PROXIMAL HUMERUS FRACTURE WITH LOCKING PLATE: FUNCTIONAL AND RADIOGRAPHIC RESULTS
RESUMO Objetivo: Correlacionar os resultados funcionais e os índices radiográficos das fraturas do úmero proximal tratadas com placa bloqueada. Métodos: Examinou-se 70 pacientes com fraturas do úmero proximal tratados com placa bloqueada, com seguimento médio de 30 meses. Esses pacientes foram submetidos à análise do escore da Universidade da Calif
Acta ortop. bras.. Publicado em: 30/05/2019
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8. Completitude e confiabilidade do Sistema de Informações sobre Mortalidade para óbitos perinatais no Brasil, 2011-2012: um estudo descritivo
Resumo Objetivo: analisar a completitude e confiabilidade dos dados para os óbitos perinatais constantes no Sistema de Informações sobre Mortalidade (SIM) do Brasil em 2011-2012. Métodos: estudo de avaliação da qualidade do preenchimento dos dados dos óbitos perinatais notificados no SIM, comparados aos da pesquisa ‘Nascer no Brasil’, no perí
Epidemiol. Serv. Saúde. Publicado em: 21/03/2019
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9. Three-dimensional geometric model of the middle segment of the thoracic spine based on graphical images for finite element analysis
Abstract Introduction: Biomedical studies involve complex anatomical structures, which require specific methodology to generate their geometric models. The middle segment of the thoracic spine (T5-T10) is the site of the highest incidence of vertebral deformity in adolescents. Traditionally, its geometries are derived from computed tomography or magnetic res
Res. Biomed. Eng.. Publicado em: 25/05/2017
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10. A magneto-motive ultrasound platform designed for pre-clinical and clinical applications
Abstract Introduction Magneto-motive ultrasound (MMUS) combines magnetism and ultrasound (US) to detect magnetic nanoparticles in soft tissues. One type of MMUS called shear-wave dispersion magneto-motive ultrasound (SDMMUS) analyzes magnetically induced shear waves (SW) to quantify the elasticity and viscosity of the medium. The lack of an established pres
Res. Biomed. Eng.. Publicado em: 12/01/2017
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11. UNCEMENTED ARTHROPLASTY AFTER HIP METASTATIC DISEASE AND MULTIPLE MYELOMA
ABSTRACT Objective: To describe a case series using a combination of narrative, graphical exploratory analysis and Bayesian Network modeling. Methods: Case series with 34 patients undergoing uncemented and hybrid arthroplasty procedures secondary to hip pain or fracture secondary to metastatic disease or multiple myeloma. Results: The most common tumors
Acta ortop. bras.. Publicado em: 2016-08
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12. Propagation Characteristics of Optical Long Period Fiber Gratings using Graphical Solution Methods
Abstract In this paper, we explicitly show a complete analysis and detailed calculation of propagation characteristics of the effective refractive indices of the core and cladding for a long period grating employing both the Two-Layer and Three-Layer Geometries. The results are achieved employing graphical solution methods and presented in terms of the effec
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2016-06