Clarion University

Associations Between Clinical Characteristics and Magnetic Resonance Imaging of the Sacroiliac Joints and Spine: Exploratory Analysis of the Phase 4, Randomized, Placebo-Controlled STAR Study

Objective To compare demographic and clinical characteristics of patients who did and did not meet the magnetic resonance imaging (MRI) axial inflammation eligibility criteria for the STAR study. Methods STAR is a phase 4, randomized, placebo-controlled trial of guselkumab, a sel...

The usable time-dilation of a Kerr flyby is geodesic

A calculation of the observer-to-proper-time ratio available to a spacecraft that leaves an equatorial Kerr encounter, when the exit Δv is limited to published plasma and nuclear-thermal plants. A geodesic that returns to infinity has path-averaged R_t → 1. The encounter window r...

The usable time-dilation of a Kerr flyby is geodesic

A calculation of the observer-to-proper-time ratio available to a spacecraft that leaves an equatorial Kerr encounter, when the exit Δv is limited to published plasma and nuclear-thermal plants. A geodesic that returns to infinity has path-averaged R_t → 1. The encounter window r...

The usable time-dilation of a Kerr flyby is geodesic

A calculation of the observer-to-proper-time ratio available to a spacecraft that leaves an equatorial Kerr encounter, when the exit Δv is limited to published plasma and nuclear-thermal plants. A geodesic that returns to infinity has path-averaged R_t → 1. The encounter window r...