Results 41 to 50 of about 52,118 (271)
Joint Calibration Estimator for dual frame surveys [PDF]
Statistics in Transition new series, 2015 Many dual frame estimators have been proposed in the statistics literature. Some of these estimators are theoretically optimal but hard to apply in practice, whereas others are applicable but have larger variances than the first group. In this paper, a Joint Calibration Estimator (JCE) is proposed that is simple to apply in practice and meets many ...
Elkasabi, Mahmoud A. +2 more
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Class of Calibrated Estimators of Population Proportion Under Diagonal Systematic Sampling Scheme
MathematicsEstimators of population characteristics which only exploit information of the study characters tend to be prone to outliers or extreme values that may characterize sampling information due to randomness in selection thereby making them to be less ...
Ahmed Audu +3 more
doaj +1 more source
Integrating endogeneity in survey sampling using instrumental-variable calibration estimator
HeliyonThe endogeneity problem arises when the auxiliary variables correlate to the error terms. In such cases, appropriate instrumental variables ensure efficient estimation.
Muhammad Nadeem Intizar +5 more
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Regression calibration utilizing biomarkers developed from high-dimensional metabolites
Frontiers in Nutrition, 2023 Addressing systematic measurement errors in self-reported data is a critical challenge in association studies of dietary intake and chronic disease risk.
Yiwen Zhang +4 more
doaj +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Gamma Ray Bursts as Cosmological Probes [PDF]
, 2006 We discuss the prospects of using Gamma Ray Bursts (GRBs) as high-redshift distance estimators, and consider their use in the study of two dark energy models, the Generalized Chaplygin Gas (GCG), a model for the unification of dark energy and dark matter,
Bertolami, O., Silva, P. T.
core +3 more sources
Molecular Oncology, EarlyView.A‐to‐I editing of miRNAs, particularly miR‐200b‐3p, contributes to HGSOC progression by enhancing cancer cell proliferation, migration and 3D growth. The edited form is linked to poorer patient survival and the identification of novel molecular targets.
Magdalena Niemira +14 more
wiley +1 more source
Multiphase flow metering using capacitance transducer and multivariate calibration [PDF]
Modeling, Identification and Control, 1992 The method of multivariate calibration is experimentally investigated to establish estimators of the required pertinent flow parameters in multiphase pipe flow.
Øyvind Midttveit +2 more
doaj +1 more source
OPTiMAL: a new machine learning approach for GDGT-based palaeothermometry [PDF]
Climate of the Past, 2020 In the modern oceans, the relative abundances of glycerol dialkyl glycerol tetraether (GDGT) compounds produced by marine archaeal communities show a significant dependence on the local sea surface temperature at the site of deposition. When preserved in
T. Dunkley Jones +8 more
doaj +1 more source
Calibrated estimators of the ratio
Lietuvos matematikos rinkinys, 2001 There is not abstract.
openaire +4 more sources