Trapezium fractures are rare injuries which should not be missed. We report a case of a 27-year-old right hand dominant man who sustained a closed vertical trapezium fracture and first carpometacarpal joint dislocation which was treated with closed reduction and percutaneous Kirschner-wire fixation, a technique familiar to all orthopaedic surgeons. Satisfactory functional outcome was achieved a...

ABSTRACT We report a method for removing the distal segment of a broken locked intramedullary nail secondary to nonunion of the femur following radiotherapy for fibromatosis. A Kirschner wire with one tip fashioned into a hook was used to remove the distal segment without opening with the nonunion site. Details of the procedure are described. KEY WORDS Broken intramedullary nail, removal of d...

A closed reduction technique using a posteriorly inserted intrafocal Kirschner wire for unstable Gartland type-III supracondylar humeral fractures in children is described. This surgical technique has been used in 7 patients. None had neurovascular complications, and all achieved bone union and had good or excellent functional and cosmetic results.

We investigate the structure of Kubo — Martin — Schwinger (KMS) states on some extension of the universal enveloping algebra of SL(2, C). We find that there exists a one-to-one correspondence between the set of all covariant KMS states on this algebra and the set of all probability measures dµ on the real half-line [0, +∞), which decrease faster than any inverse polynomial. This problem is conn...

In this study an attempt is made to create a Virtual Agent (VA) designed to exercise control in the opponent’s behavior by interaction with its human opponent in order to influence the outcome of a game. The goal is to create an artificial player succeeding to influence its human opponent in a game with no optimal strategy, one which is based around the (iterated) prisoner’s dilemma.

Address correspondence to: Rafael F. Martín-García, MD, Department of Dermatology, University of Puerto Rico Medical Sciences Campus, PO BOX 365067, San Juan, PR 00936-5067. Email: [email protected] Dissecting cellulitis of the scalp (Dcs) is an uncommon inflammatory disease that often results in scarring alopecia. Numerous therapies have either proved ineffective or only temporarily effe...