A group is called capable if it is a central factor group. For each prime p and positive integer c, we prove the existence of a capable p-group of class c minimally generated by an element of order p and an element of order p 1+⌊ c−1 p−1 ⌋ . This is best possible.

Many senrice courses in statistics, in my experience, have degenerated into the presentation of a set of recipes. The prevailing situation extant in many courses was summed up recently by my son, himself a trainee engineer, when he said, "I lean the recipes to pass the exam but I don't really understand the material". In fact the rapidity with which the material in his course has been presented...

In this paper, we present a novel indexing data structure called RDHT (Range capable Distributed Hash Table) derived from skip lists and specifically designed for storing and retrieving geographic data from a structured P2P network overlay. We have developed RDHTs as backend for the DART search engine, whose goal is to efficiently answer complex queries based on semantics and geographical conte...

The traditional action-oriented surgical personality, although essential in the service of solving emergent operative dilemmas, may serve as a barrier to introspection. Certainly, challenges of the twenty-first century practice environment, including time constraints, also distract from self-reflection. Without engaging in moments of introspection, surgeons risk not only abandoning dying patien...