Central London. He spotted an antique pen shop, and wanted to stop in. It was 1998, and we were in town to meet with some folks helping to build the digital dome system for the Rose Center for Earth and Space at the American Museum of Natural History, to open in 2000. It turns out that Tyson is an antique pen buff. He's also a lateral thinker, and looking at the old fountain pens and pencils go...

There are certain families of words and word sequences (words in the generators of a two-generator group) that arise frequently in the Teichmüller theory of hyperbolic three-manifolds and Kleinian and Fuchsian groups and in the discreteness problem for two generator matrix groups. We survey some of the families of such words and sequences: the semigroup of so called good words of Gehring-Martin...

The integration of wires and electronics in e-textiles has many potential applications for wearable computing. One method which allows dense electronics modules on an e-textile is to create attachments composed of conventional electronics devices on a PCB. These attachments can use a variety of methods to connect to wires in an e-textile. This design allows for etextile electronics modules whic...

Here are our meditation on the art of attracting, keeping, and helping patients. It contains some sections including “Be professional”, “Be reassuring”, “Be confident”, “Be informative”, “Be smart” and “Be responsive”.

Contemporary orthodontics relies on various bonded attachments, archwires, and other devices to achieve tooth movement. These components are composed of varying materials with their own distinctive physical and mechanical properties. The demands made on them are complex because they are placed under many stresses in the oral environment. These include immersion in saliva and ingested fluids, te...

A holonomic function is a differentiable or generalized function which satisfies a holonomic system of linear partial or ordinary differential equations with polynomial coefficients. The main purpose of this paper is to present algorithms for computing a holonomic system for the definite integral of a holonomic function with parameters over a domain defined by polynomial inequalities. If the in...