This study shows that mortality dips before a symbolically meaningful occasion and peaks just afterward. Mortality among Chinese (n = 1288) dips by 35.1% in the week before the Harvest Moon Festival and peaks by the same amount (34.6%) in the week after. We chose to study mortality among Chinese and a Chinese holiday for two reasons. First, the holiday moves around the calendar, thus allowing s...

Recently we proposed a hybrid architecture for quantum computing based on stationary and flying qubits: the repeat-until-success (RUS) quantum computing scheme. The scheme is largely implementation independent. Despite the incompleteness theorem for optical Bell-state measurements in any linear optics set-up, it allows for the implementation of a deterministic entangling gate between distant qu...

Over the past year I have worked with several managing partners in helping them transition from one set of leaders to another. The question I often get is when is the time right? Managing partners decide to pass the baton to the next generation of leaders at different times. Some decide it’s time when they are in their early or mid 50s since they want to do other things in life. Others will hol...

We refer to this equational theory as W . We came across these axioms while studying identities or equivalences in Linear Temporal Logic (LTL) — a logic for reasoning about time with the “until” operator U , but without the “next-time” operator ©. It is not hard to see that the until operator U satisfies these identities. However, note that there are other models for these identities as well: t...

We prove there is a strict hierarchy of expressive power according to the Until depth of linear temporal logic (TL) formulas: for each k, there is a very natural property that is not expressible with k nestings of Until operators, regardless of the number of applications of other operators, but is expressible by a formula with Until depth k + 1. Our proof uses a new Ehrenfeucht-Fraı̈ssé (EF) gam...