The effect of number of clusters and magnitude of within‐cluster homogeneity in outcomes on the performance of four variance estimators for a marginal multivariable Cox regression model fit to clustered data in the context of observational research
Sign Up to like & getrecommendations! Published in 2024 at "Statistics in Medicine"
DOI: 10.1002/sim.10126
Abstract: Researchers often estimate the association between the hazard of a time‐to‐event outcome and the characteristics of individuals and the clusters in which individuals are nested. Lin and Wei's robust variance estimator is often used with… read more here.
Keywords: variance; within cluster; estimator; number clusters ... See more keywords
Doped metal clusters as bimetallic AuCo nanocatalysts: insights into structural dynamics and correlation with catalytic activity by in situ spectroscopy
Sign Up to like & getrecommendations! Published in 2022 at "Faraday Discussions"
DOI: 10.1039/d2fd00120a
Abstract: Co-doped Au25 nanoclusters with different numbers of doping atoms were synthesized and supported on CeO2. The catalytic properties were studied in the CO oxidation reaction. In all cases, an enhancement in catalytic activity was observed… read more here.
Keywords: within cluster; spectroscopy; catalytic activity; doped metal ... See more keywords