Laid on a table are a bunch of framed, official-lookingcertificatesmadeon the organiser'scomputer, certifying thatdoctorshave physically been here for the presentations.
"The debtors in our sample include accountants and computer engineers, doctors and dentists, clerks and executives, salesclerks and librarians, " they write in their new book, The Fragile Middle Class: Americans in Debt.
The new computer simulation allows doctors and physicists to model the faulty heart beats (arrhythmias) that can cause cardiac arrest, and run episodes of arrhythmia time and again, looking for the best way of treating it.