Publications (6)
Dynamical Consequence of Shadows Cast to the Outer Protoplanetary Disks: I. Two-dimensional Simulations
Zehao Su, Xue-Ning Bai
There has been increasing evidence of shadows from scattered light observations of outer protoplanetary disks (PPDs) cast from the (unresolved) disk inner region, while in the mean…
Improving precision of cumulative incidence estimates in randomized controlled trials with external controls
Zehao Su, Helene C. W. Rytgaard, Henrik Ravn +1
Augmenting the control arm in clinical trials with external data can improve statistical power for demonstrating treatment effects. In many time-to-event outcome trials, participan…
A Robustness Test for Estimating Total Effects with Covariate Adjustment
Zehao Su, Leonard Henckel
Suppose we want to estimate a total effect with covariate adjustment in a linear structural equation model. We have a causal graph to decide what covariates to adjust for, but are…
Efficient estimation of the target population average treatment effect from multi-source data
Zehao Su, Helene Charlotte Rytgaard, Henrik Ravn +1
We consider estimation of the target population average treatment effect (TATE) when outcome information is unavailable. Instead, we observe the outcome in multiple source populati…
Proximal indirect comparison
Zehao Su, Helene C. W. Rytgaard, Henrik Ravn +1
We consider the problem of indirect comparison, where a treatment arm of interest is absent by design in one randomized controlled trial but available in the other. The former is t…
Gravitational instability in protoplanetary disk with cooling: 2D global analysis
Zehao Su, Xing Wei
Self-gravity is important in protoplanetary disks for planet formation through gravitational instability (GI). We study the cooling effect on GI in a thin two-dimensional protoplan…