Inguinal Hernia after Urologic Surgery in Males with Special Reference to Radical Retropubic Prostatectomy A Clinical, Epidemiological and Methodological Study Johan Stranne, Department of Urology, Institute of Clinical Sciences, the Sahlgrenska Academy at Göteborg University, Sahlgrenska University Hospital Background and aims: In 1996 the first report indicating that inguinal hernia (IH) was ...

A square matrix A is transposable ii AT = PAQ for some ljermutation matrices P and Q, and symmiwizable if RA = ( RA)T for some permutation matrix R. A recent paper [I] purports to show that the matrix symmetrizability problem is isomorphism complete, that Is polynomial time equivalent to the graph isomorphism problem. Unfortunately, that paper is based on a misunderstanding about the contents o...

The concept of a loss-less data compression coding method is proposed, and a detailed description of each of its steps follows. Using the Calgary Corpus and Wikipedia data as the experimental samples and compared with existing algorithms, like PAQ or PPMstr, the new coding method could not only compress the source data, but also further re-compress the data produced by the other compression alg...

Lipid analysis of aquatic plants from lakes on Mt. Kenya, E. Africa, revealed that non-emergent (submerged and ̄oating-leaved) species displayed enhanced abundances of mid-chain length, C23 and C25 n-alkanes. In contrast, the emergent aquatic plants had n-alkane distributions similar to those of the terrestrial vegetation, typically dominated by the long-chain length homologues (>C29). A proxy r...

In this paper, we present a method for approximating the values of sensors in a wireless sensor network based on time series forecasting. More specifically, our approach relies on autoregressive models built at each sensor to predict local readings. Nodes transmit these local models to a sink node, which uses them to predict sensor values without directly communicating with sensors. When needed...

Partial differential equations (PDEs) are able to reconstruct images accurately from a small fraction of their image points. These inpainting capabilities allow compression codecs with sophisticated anisotropic PDEs to compete with transform-based methods like JPEG 2000. For simple linear PDEs, optimal known data can be found with powerful optimisation strategies. However, the potential of thes...

Outsourcing generally involves non-strategic resources and/or non-asset specific capabilities. However, in this paper, the authors examine the non-traditional, but increasingly more common, use of IT to facilitate theoretically inconsistent outsourcing decisions involving core resources and capabilities. The authors reconcile theory with practice by developing propositions to explain how IT can...

Let A be an n-square (0, 1)-matrix, let ri denote the i-th row sum of A, i = 1 ..... n, and let per(A) denote the permanent of A. Then per(A) ~< H ri q~/-2,.1 I + V T where equality can occur if and only if there exist permutation matrices P and Q such that PAQ is a direct sum of l-square and 2-square matrices all of whose entries are 1. I f A = (ai~) is an n-square mat r ix then the permanent ...