Results 181 to 190 of about 88,425 (250)

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

A goodness‐of‐fit test for regression models with discrete outcomes

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Regression models are often used to analyze discrete outcomes, but classical goodness‐of‐fit tests such as those based on the deviance or Pearson's statistic can be misleading or have little power in this context. To address this issue, we propose a new test, inspired by the work of Czado et al.
Lu Yang   +2 more
wiley   +1 more source

Non‐negative Gaussian estimation of variance components in random effects models

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract When used to estimate variance components (VCs), confidence intervals (CIs) can be truncated at zero, have a point estimate not in the quoted CI, be empty with positive probability, or be all‐inclusive. This is because they have conflicting dual roles, since they are considered to cover the parameter with a specified probability while also ...
André Plante, Michael Plante
wiley   +1 more source

Reducing Exposure Before Birth: An Interrupted Time Series Study of Prenatal Exposure to Fetotoxic Medications Under Risk Management Plans in Canada

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Canada's 2009 risk management plan (RMP) framework has not been evaluated for prenatal exposure impact. Conversely, widely used drugs such as nonsteroidal anti‐inflammatory drugs (NSAIDs) lack RMPs. We assessed first‐trimester exposure to RMP‐regulated medications following regulatory interventions and to NSAIDs following safety publications.
Nahiyan Saiyara Khan   +4 more
wiley   +1 more source

Genetic Determinants of Treatment‐Related Bone Toxicity in Pediatric Acute Lymphoblastic Leukemia

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Osteonecrosis and fractures are serious corticosteroid‐induced bone toxicities in children treated for acute lymphoblastic leukemia, yet their genetic determinants remain incompletely defined. In this study, we aimed to identify novel genetic contributors to bone toxicity and to evaluate the robustness of both newly identified and previously ...
Rachid Abaji   +14 more
wiley   +1 more source

Tracking Climate and Environmental Attention: A News‐Based Composite Index

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study introduces the Climate and Environmental Attention Index, a composite indicator that tracks media attention to climate and environmental issues. Based on the Semantic Brand Score, the proposed index extracts significant signals from unstructured text, going beyond traditional measures of word frequency and sentiment.
Gianna Figà‐Talamanca   +3 more
wiley   +1 more source

Strategic Shift to Sustainable Competitive Advantage With Biodiversity Purpose: An Adaptive Capacity Approach

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Drawing on adaptive capacity research, this study provides an assessment of the sustainable competitive advantage of a strategic shift with social purpose, leveraging green revenue to drive biodiversity outcomes. The study employs panel regression analysis on a distinctive dataset for the period 2015–2024, focusing on S&P 1500 firms. Using the
Post Raj Pokharel   +1 more
wiley   +1 more source

Investigations Into the Metabolism and Elimination of Flmodafinil and Fladrafinil for Sports Drug Testing Purposes

open access: yesDrug Testing and Analysis, EarlyView.
This article investigates the metabolism and elimination of flmodafinil and fladrafinil, two fluorinated analogs of modafinil and adrafinil listed as S6 stimulants by the World Anti‐Doping Agency. After single‐dose administration to six volunteers, the compounds and their main metabolites were studied in urine and blood.
O. Krug   +6 more
wiley   +1 more source

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