Bootstrap Technique
Mostrando 13-21 de 21 artigos, teses e dissertações.
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13. Exploring alternatives for the construction of neural spatial interaction models / Explorando alternativas para construção de modelos neurais de interação espacial
The rapid growth of Brazilian cities, without a previous planning of their expansion (including land use and occupation), causes many inconveniences for the population related to their transportation, as they must cover longer distances. This asks for an understanding of the city areas limits, the services currently offered to the community in each area, and
Publicado em: 2005
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14. AlphaCI: un programa de cálculo de intervalos de confianza para el coeficiente alfa de Cronbach
Cronbach's alpha coefficient is the most popular way of estimating reliability in measurement scales based on Classic Test Theory. When estimating it, researchers usually omit to report confidence intervals of this coefficient, as it is not only recommended by experts, but also required by some journal's guidelines. This situation is because the different me
Psico-USF. Publicado em: 2004-06
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15. Intervalo de confiança para avaliação de bioequivalencia individual utilizando a medida de Kullback-Leibler
Bioequivalence trials are conducted to show that two formlllations, a reference dmg R and a test T, produces similar bioavailabitity. In Brazil, the introduction of the generic drug started in 1999 and the current analysis of the pharmacokinetics measures for rate and extent of the absorption is the average bioequivalence (ABE) which is not sufficient to gua
Publicado em: 2004
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16. Perfil longitudinal de CAE s : flutuações, simulação híbrida e a dependência de modelos de interações hadrônicas
The goal of this thesis is present a fast one dimensional hybrid method by Monte Carlo scheme to efficiently simulate the longitudinal development of extensive air showers up to the highest observed energies (>10 18eV). Based on precalculated pion showers and a bootstrap technique, the method predicts the average shower profile, the number of muons at detect
Publicado em: 2002
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17. Bootstrap hypothesis tests for evolutionary trees and other dendrograms.
The bootstrap computer-intensive statistical technique is frequently applied to statistical analyses of phylogenetic trees. The widely used rule that a group is supported significantly if it appears in at least 95% of bootstrap trees is conservative in most situations. This paper describes three ways of using the bootstrap to carry out statistical inference
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18. Gene content phylogeny of herpesviruses
Clusters of orthologous groups [COGs; Tatusov, R. L., Koonin, E. V. & Lipman, D. J. (1997) Science 278, 631–637] were identified for a set of 13 completely sequenced herpesviruses. Each COG represented a family of gene products conserved across several herpes genomes. These families were defined without using an arbitrary threshold criterion based on seque
The National Academy of Sciences.
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19. Multispectral imaging of tablets in blister packaging
This experiment tested the hypothesis that using near-infrared (IR) imaging spectrometry on tablets through blister packs permits the identification and composition of multiple individual tablets to be determined simultaneously. Aspirin was selected for this study because its breakdown mechanism is well understood. Near-IR cameras were used to collect thousa
Springer-Verlag.
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20. Acoustic-resonance spectrometry as a process analytical technology for rapid and accurate tablet identification
This research was performed to test the hypothesis that acoustic-resonance spectrometry (ARS) is able to rapidly and accurately differentiate tablets of similar size and shape. The US Food and Drug Administration frequently orders recalls of tablets because of labeling problems (eg, the wrong tablet appears in a bottle). A high-throughput, nondestructive met
Springer-Verlag.
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21. Citrate Synthase Gene Sequence: a New Tool for Phylogenetic Analysis and Identification of Ehrlichia
The sequence of the citrate synthase gene (gltA) of 13 ehrlichial species (Ehrlichia chaffeensis, Ehrlichia canis, Ehrlichia muris, an Ehrlichia species recently detected from Ixodes ovatus, Cowdria ruminantium, Ehrlichia phagocytophila, Ehrlichia equi, the human granulocytic ehrlichiosis [HGE] agent, Anaplasma marginale, Anaplasma centrale, Ehrlichia sennet
American Society for Microbiology.