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Revealing the Hidden Role of Cd in p‐Type Mg3Sb2: Enhanced Thermoelectric Performance by Grain Boundary Segregation Engineering

open access: yesAdvanced Functional Materials, EarlyView.
The hidden role of Cd segregation at grain boundaries is revealed in p‐type Mg3Sb2 by atom probe tomography and other advanced characterizations. Grain boundary Cd enrichment suppresses the SbMg+ hole‐killer formation and lowers potential barriers, enhancing electrical conductivity.
Zhou Li   +12 more
wiley   +1 more source

Propensity Scores for Observational Studies: Putting Real World Data and Experience to Good Use in Spine Research! [PDF]

open access: yesGlobal Spine J
Norvell DC   +6 more
europepmc   +1 more source
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Implied Probabilities in GMM Estimators

Econometrica, 1993
The conventional way to estimate a distribution function is to assume it belongs to a class parameterized by a finite-dimensional vector and then estimate the unknown parameter vector. In many cases, e.g., regression models, part of the assumption is of the form: a given function of the data and of the parameter vector has a zero mean.
Back, Kerry, Brown, David P
openaire   +2 more sources

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