Study Objectives: We introduce new quantitative approaches to study sleep-stage transitions with the goal of addressing the two following questions: (i) Can the new approaches provide more information on the structure of sleep-stage transitions? (ii) How does sleep fragmentation in patients with sleep apnea affect the structure of sleepstage transitions? Design: We analyze hypnograms and compar...

BACKGROUND: Transitions in the location of care and in who provides such care can be extremely stressful for individuals facing death and for those close to them. The objective of this study was to describe the distribution of transitions in care experienced by palliative care patients following admission to a comprehensive palliative care program (PCP). A better understanding of these transiti...

This study presents a biographical approach to modeling households’ vehicle ownership states and type choice, using data from retrospective survey. Over lifetime, households purchase their first by terminating no-car state, subsequently re-evaluate decision of changing fleet size multiple transactions that cause termination transient states. evaluates determinants the probability state exclusiv...

We investigate the dynamics of a conservative version Conway's Game Life, in which pair consisting dead and living cell can switch their states following rules but only by swapping positions, irrespective mutual distance. Our study is based on square-lattice simulations as well mean-field calculation. As density cells increased, we identify discontinuous phase transition between an inactive pha...