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The Concept of Accuracy Analysis of the Vertical Displacements Gained from the Hydrostatic Levelling Systems’ Measurements
Published 2021-07-01“…The formulas of covariances’ matrix were derived and they enable to make the accuracy assessment of the calculations’ results. …”
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2442
Min-Max, Min-Max-Median, and Min-Max-IQR in Deciding Optimal Diagnostic Thresholds: Performances of a Logistic Regression Approach on Simulated and Real Data
Published 2023-09-01“…The results show that the summary-based models, especially minimum-maximum-median regression model (LR(MMM)) and minimum-maximum-interquartile range model (LR(MMIQR)), have similar performances or slightly better performances than the classical LR model regardless of the imposed mean of biomarkers or covariance matrixes on both simulated and real-data. The differences in AUCs were higher as the number of combined biomarkers increased (LR(MMIQR) model vs. …”
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2443
EFFECT OF THE GROUND PARAMETER VARIATIONS ON THE SENSITIVITY OF AN ACTIVE PHASED ARRAY ANTENNA ELEMENT OF THE LOW-FREQUENCY GURT RADIO TELESCOPE
Published 2019-12-01“…Design/methodology/approach: A mathematical model of an active antenna represented as a two-port network, whose electrical parameters are described with the scattering matrix and the noise parameters – with the covariation matrix of noise wave spectral densities was used for studying the GURT phased array antenna element composed of a dipole and a low-noise amplifier (LNA). …”
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2444
Common matrix metalloproteinase-2 gene variants and altered susceptibility to breast cancer and associated features in Tunisian women
Published 2019-04-01“…Four-locus Haploview analysis identified haplotypes G C TT and GTT C to be negatively associated with breast cancer, which remained statistically after controlling for key covariates. Matrix metalloproteinase-2 alleles and genotypes, along with four-locus haplotypes, are related to reduced susceptibility to breast cancer in Tunisian women, suggesting a protective effect.…”
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2445
Estimativa do tamanho amostral em medidas repetidas de circunferência escrotal de bovinos Nelore Estimate of sample size in repeated measurements of scrotal circumference of Nellor...
Published 1999-04-01“…The value of n that allows to detect the D among means when each subject is observed for t > 2 treatments, was obtained by means of the Statistical Analysis System - SAS developed program, the t-variate normal distribution (t=21), as a vector of zero mean and S covariate matrix, Hotelling T² statistics and F-distribution with noncentrality parameter of d²D. …”
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2447
Association of Body Condition Score and Score Change during the Late Dry Period on Temporal Patterns of Beta-Hydroxybutyrate Concentration and Milk Yield and Composition in Early L...
Published 2021-04-01“…To evaluate how −21 BCS and ∆BCS during the late dry period were associated with BHB in early lactation, linear mixed-effects regression models with an unstructured covariate matrix were performed. The association between ∆BCS and incidence of postpartum HYK were determined using a multivariable log-binomial model. …”
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2448
A Computable Gaussian Quantum Correlation for Continuous-Variable Systems
Published 2021-09-01“…For any state <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ρ</mi><mrow><mi>A</mi><mi>B</mi></mrow></msub></semantics></math></inline-formula> of the system, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="script">M</mi><mo>(</mo><msub><mi>ρ</mi><mrow><mi>A</mi><mi>B</mi></mrow></msub><mo>)</mo></mrow></semantics></math></inline-formula> depends only on the covariant matrix of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ρ</mi><mrow><mi>A</mi><mi>B</mi></mrow></msub></semantics></math></inline-formula> without any measurements performed on a subsystem or any optimization procedures, and thus is easily computed. …”
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