We present a rare case of renal perforation by a ureteric stent. A 62 yr old patient presented with repeated episodes of febrile urinary tract infections following double J stent placement. A CT scan revealed the upper end of the stent lying outside the kidney, having pierced through the cortex. Removal of the stent cystoscopically resulted in cure of the symptoms. Post insertion of stents, it ...

Combinatorial neural codes are collections of 0/1 vectors that used to model the co-firing patterns a set place cells in brain. One wide-open problem this area is determine when given code can be algorithmically drawn on plane as Venn diagram-like figure. A sufficient condition do so for have property called 2-inductively pierced. Gross, Obatake, and Youngs recently toric algebra show three neu...

Let p ≥ q ≥ d+1 be positive integers and let F be a finite family of convex sets in Rd. Assume that the elements of F are coloured with p colours. A p-element subset of F is heterochromatic if it contains exactly one element of each colour. The family F has the heterochromatic (p, q)-property if in every heterochromatic p-element subset there are at least q elements that have a point in common....

OBJECTIVES To survey the prevalence of body art (body piercing and tattooing) in university undergraduate students and to determine the incidence of medical complications from these procedures. SUBJECTS AND METHODS Between February and May 2001, students were offered the opportunity to complete an anonymous, voluntary survey at the beginning of class or organizational meetings. The survey ins...

Aspects of the thermo-dynamics of a black hole which is either pierced by a cosmic gauge string or contains a global monopole are investigated. We also make some comments on the physical significance of the fact that the gravitational mass carried by a global monopole is negative. We note in particular that the negative monopole mass implies a gravitational super-radiance effect. PACS numbers: ...