The shape of the demographic life cycle is of fundamental interest, which demographers recognize through extensive efforts to estimate, describe, and interpret the age-shapes of fertility, mortality, marriage, divorce, and migration. These age-shapes are influenced by biology, culture, economic constraints, and individual choice. Similarly, the shape of the economic life cycle is of fundamental...

To the anesthesia practitioner, the possibility of malpractice claims constitutes a very real and ever-present problem for it lies within the risks inherent in the administration of anesthesia. Since the areas of anesthesia which may be subject to suit are legion, the problem of malpractice becomes too complex to afford easy answers. Clearly, though, it is a problem all too serious to ignore. T...

Recordings from two cortical areas in monkeys performing complex decision tasks have helped define more closely the interface between 'sensory' and 'motor' processing.

Random graph models and associated inference problems such as the stochastic block model play an eminent role in computer science, discrete mathematics and statistics. Based on nonrigorous arguments physicists predicted the existence of a generic phase transition that separates a “replica symmetric phase” where statistical inference is impossible from a phase where the detection of the “ground ...

Safety Of Life at Sea (SOLAS) is the overarching principle for all offshore operations and one of the major contributing factors to SOLAS is quality navigational charts that are comprehensive and adhere to International Hydrographic Organisation (IHO) established standards of accuracy. However, a chart is only as good as the data that is used to compile it and one of the more challenging areas ...

Last year, the American Association of Orthodontists (AAO) Board of Trustees appointed President Lee Graber and me to a joint task force along with the current president of the American Academy of Periodontology and another practicing periodontist. Our charge was to determine how orthodontists can avoid being sued for periodontal problems that arise during orthodontic treatment. Is this a real ...

The drawbacks to multivariate charting schemes is their inability to identify which variable was the source of the signal. The multivariate exponentially weighted moving average (MEWMA) developed by Lowry, et al (1992) is an example of a multivariate charting scheme whose monitoring statistic is unable to determine which variable caused the signal. In this paper, the run length performance of m...