Results 181 to 190 of about 13,855,951 (296)

Optimizing IMPULSED Acquisition Protocols for Clinical 3T Scanners Through Bayesian Experimental Design

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To optimize diffusion MRI acquisition protocols for Imaging Microstructural Parameters Using Limited Spectrally Edited Diffusion (IMPULSED) model at clinical 3T scanner using Bayesian experimental design, enabling accurate cellular‐scale parameter estimation under realistic scan time and scanner hardware constraints.
Yan Dai, Xun Jia, Todd Aguilera, Kai Jiang, Arely Perez Rodriguez, Isabelle Vanhaezebrouck, Jie Deng   +6 more
wiley   +1 more source

The Impact of Model Misspecification on the Individual Causal Association in Surrogate Endpoint Evaluation. [PDF]

Pharm Stat
Deliorman G, Stijven F, Van der Elst W, Pardo MDC, Alonso A.   +4 more
europepmc   +1 more source

A new phylogenetic protocol: dealing with model misspecification and confirmation bias in molecular phylogenetics. [PDF]

NAR Genom Bioinform, 2020
Jermiin LS, Catullo RA, Holland BR.
europepmc   +1 more source

Normalizations and Misspecification in Skill Formation Models

Review of Economic Studies
Abstract An important class of structural models studies the determinants of skill formation and the optimal timing of interventions. In this article, I provide new identification results for these models and investigate the effects of seemingly innocuous scale and location restrictions on parameters of interest.
openaire   +2 more sources

Pergamon Acropolis Model

, 1950
Detail, Temple of Dionysus at lowest point, center, Temple of Trajan (2nd century CE) in courtyard, theater, lower right; Pergamon was an ancient Greek city in Asia Minor (now Bergama, Turkey), later part of the Roman Empire.
unknown (German model maker)
core  

Optimal Designs and Inspection Time Decisions for Gamma Accelerated Degradation Tests

Naval Research Logistics (NRL), EarlyView.
ABSTRACT This study analytically derives optimal designs for gamma accelerated degradation tests while incorporating inspection time as a design variable under both D‐ and V‐optimality criteria. Under D‐optimality, we prove that the optimal design allocates test units exclusively to the lowest and highest stress levels and adopts the longest inspection
Hung‐Ping Tung, I‐Chen Lee
wiley   +1 more source

Decision-Making Under Model Misspecification: DRO with Robust Bayesian Ambiguity Sets. [PDF]

Entropy (Basel)
Dellaporta C, O'Hara P, Damoulas T.
europepmc   +1 more source

Piecewise structural equation modelling in ecology: common pitfalls and best practices for causal inference

Oikos, EarlyView.
Structural equation modelling (SEM) has become a cornerstone tool in ecology for testing hypotheses about causal relationships and disentangling direct and indirect effects. However, its growing use has led to frequent conceptual and methodological misapplications.
Álvaro Gaytán
wiley   +1 more source

Lévy Versus Wiener: Assessing the Effects of Model Misspecification on Diffusion Model Parameters. [PDF]

Comput Brain Behav
Hato T, Schumacher L, Radev ST, Voss A.
europepmc   +1 more source

A recipe for recovery: diet as a decisive tool in species conservation

Oikos, EarlyView.
Animals consume foods in specific quantities and ratios to meet a multi‐dimensional nutrient target that maximizes their fitness. Attempts to reach this target in an ever‐changing nutritional landscape often influence animal foraging behavior, habitat choice, and food‐web interactions. Consequently, understanding the nutritional ecology of a species is
Noa Lavie, Yael Levinson, Jessica M. Rothman, Dror Hawlena   +3 more
wiley   +1 more source