Results 51 to 60 of about 79,999 (151)
Jurnal Kebidanan Kestra, 2022 Independent Practice Midwives are obliged to systematically record midwifery care and other services provided, the Wonosobo Health Office and the professional organization of the Indonesian Midwifery Association have not yet made a mutual agreement on ...
Setiasih ., Gunarmi ., Siswanto Pabidang
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Journal of Statistical Research, 2023 In clinical trials, efficient statistical inference is critical to the well-being of future patients. We therefore construct Wald-type tests for the hypothesis of treatment-by-covariate interaction when treatments are assigned to patients by an adaptive design and the true model is a generalized linear model. Our measure of efficiency is the power of the
Selvakkadunko Selvaratnam +2 more
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Simplified Acid Treatment Technique in Cobalt-Chromium Alloys: Effect on Metal-Ceramic Bond Strength
Materials Research, 2021 This study aim was to evaluate the influence of 37% hydrochloric acid (37% HCl) treatment of cobalt-chromium (Co-Cr) alloys on the metal-ceramic bond strength (MCBS).
Michelli Menezes Sobreiro +3 more
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Testing Homogeneity of Proportion Ratios for Stratified Bilateral Correlated Data
Mathematical and Computational ApplicationsIntraclass correlation in bilateral data has been investigated in recent decades with various statistical methods. In practice, stratifying bilateral data by some control variables will provide more sophisticated statistical results to satisfy different ...
Wanqing Tian, Changxing Ma
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Survival Analysis of Factors Influencing Cyclic Fatigue of Nickel-Titanium Endodontic Instruments
Advances in Materials Science and Engineering, 2015 Objective. The aim of this study was to validate a survival analysis assessing the effect of type of rotary system, canal curvature, and instrument size on cyclic resistance. Materials and Methods.
Eva Fišerová +4 more
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The Wald-Type Test of a Normalization of Cointegrating Vectors
JOURNAL OF THE JAPAN STATISTICAL SOCIETY, 2007 This paper proposes a test for the normalization of cointegrating vectors. Our test is constructed using the unrestricted maximum likelihood estimator and then it may be seen as a Wald-type test. The test statistic is shown to be asymptotically bounded above by a chi-square distribution with one degree of freedom (χ 2) and then we can conduct a ...
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Bootstrap Confidence Intervals for Multiple Change Points Based on Two-Stage Procedures
EntropyThis paper investigates the construction of confidence intervals for multiple change points in linear regression models. First, we detect multiple change points by performing variable selection on blocks of the input sequence; second, we re-estimate ...
Li Hou +3 more
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Robust Wald-Type Tests under Random Censoring with Applications to Clinical Trial Analyses
, 2017 Randomly censored survival data are frequently encountered in applied sciences including biomedical or reliability applications and clinical trial analyses. Testing the significance of statistical hypotheses is crucial in such analyses to get conclusive inference but the existing likelihood based tests, under a fully parametric model, are extremely non-
Ghosh, Abhik +2 more
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Lithuanian Journal of Statistics, 2019 We investigate linear and nonlinear hypotheses testing in a Cox proportional hazards model for right-censored survival data when the covariates are subject to measurement errors. In Kukush and Chernova (2018) [Theor. Probability and Math. Statist.
Oksana Chernova, Alexander Kukush
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BMC Genomics, 2020 Background High-throughput RNA sequencing (RNA-seq) has evolved as an important analytical tool in molecular biology. Although the utility and importance of this technique have grown, uncertainties regarding the proper analysis of RNA-seq data remain. Of
Xiaohong Li +3 more
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