Objectives To identify distinct sets of disability trajectories in the year before and after a Medicare qualifying skilled nursing facility (Q-SNF) admission, evaluate the associations between the pre–and post–Q-SNF disability trajectories, and determine short-term outcomes (readmission, mortality). …

Many origin of life theories argue that molecular self-organization explains the spontaneous emergence of structural and dynamical constraints. However, the preservation of these constraints over time is not well-explained because of the self-undermining and self-limiting nature of these same processes. …