Results 81 to 90 of about 426,658 (249)

On subset least squares estimation and prediction in vector autoregressive models with exogenous variables

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We establish the consistency and the asymptotic distribution of the least squares estimators of the coefficients of a subset vector autoregressive process with exogenous variables (VARX). Using a martingale central limit theorem, we derive the asymptotic normal distribution of the estimators. Diagnostic checking is discussed using kernel‐based
Pierre Duchesne   +2 more
wiley   +1 more source

Measuring the impact on impedance spectroscopy of pseudo-reference electrode accumulations

open access: yesElectrochemistry Communications, 2019
Silver is widely used on screen-printed electrodes (SPEs) to provide a reference potential for electrochemical measurements such as impedance spectroscopy (EIS).
M.A. Sawhney   +5 more
doaj   +1 more source

Is our Sun a Singleton?

open access: yes, 2007
Most stars are formed in a cluster or association, where the number density of stars can be high. This means that a large fraction of initially-single stars will undergo close encounters with other stars and/or exchange into binaries.
Adams F C   +18 more
core   +1 more source

Asymptotic properties of cross‐classified sampling designs

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We investigate the family of cross‐classified sampling designs across an arbitrary number of dimensions. We introduce a variance decomposition that enables the derivation of general asymptotic properties for these designs and the development of straightforward and asymptotically unbiased variance estimators.
Jean Rubin, Guillaume Chauvet
wiley   +1 more source

Exploring barriers and solutions in advancing cross-centre population data science

open access: yesInternational Journal of Population Data Science, 2019
Introduction It is widely acknowledged that population health and administrative data, especially when linked at the individual level, hold great value for research.
Kerina H Jones   +3 more
doaj   +1 more source

A Markov approach to credit rating migration conditional on economic states

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We develop a model for credit rating migration that accounts for the impact of economic state fluctuations on default probabilities. The joint process for the economic state and the rating is modelled as a time‐homogeneous Markov chain. While the rating process itself possesses the Markov property only under restrictive conditions, methods ...
Michael Kalkbrener, Natalie Packham
wiley   +1 more source

Data on optimisation of a multiplex HRM-qPCR assay for native and invasive crayfish as well as the crayfish plague in four river catchments

open access: yesData in Brief, 2018
The data presented here corresponds to the research paper “Simultaneous detection of invasive signal crayfish, endangered white-clawed crayfish and the crayfish plague using environmental DNA”.
Chloe Victoria Robinson   +2 more
doaj   +1 more source

A Multivariate Mixed‐Effects Regression Framework for Ground Motion Modeling: Integrating Parametric and Machine Learning Approaches

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Multivariate ground motion models (GMMs) that capture the correlation between different intensity measures (IMs) are essential for seismic risk assessment. Conventional GMMs are often developed using a two‐stage approach, where separate univariate models with predefined functional forms are fitted first, and correlation is addressed in a ...
Sayed Mohammad Sajad Hussaini   +2 more
wiley   +1 more source

A Case of Acute Hepatitis E Infection in a Patient with Non-Hodgkin Lymphoma Treated Successfully with Ribavirin

open access: yesCase Reports in Gastrointestinal Medicine, 2017
We present the case of a man who, following immunosuppressive treatment for non-Hodgkin lymphoma, became infected with viral hepatitis E. Acute hepatitis E virus infection should be considered in patients with deranged liver function on a background of ...
Hasan N. Y. Haboubi   +3 more
doaj   +1 more source

A Systematic Scoping Review of Factors Contributing to Loss of Control Eating During Pregnancy

open access: yesEuropean Eating Disorders Review, EarlyView.
ABSTRACT Objective Evidence suggests loss of control eating (LOC) during pregnancy is prevalent and linked to adverse health consequences for birthing individuals and their offspring; however, factors underlying risk for prenatal LOC remain unclear.
Riley J. Jouppi   +3 more
wiley   +1 more source

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