A coupled pair of harmonic equations is solved by the application of Chebyshev acceleration to the Jacobi, Gauss-Seidel, and related iterative methods, where the Jacobi iteration matrix has purely imaginary (or zero) eigenvalues. Comparison is made with a block SOR method used to solve the same problem. Introduction. In [4], we proposed a general block SOR method for solving the biharmonic equa...

We investigate the performance of several preconditioned Conjugate-Gradient-like algorithms and a standard stationary iterative method (block-line-SOR) on linear systems of equations as they arise from a nonlinear elliptic ame sheet problem simulation. The nonlinearity forces a pseudo-transient continuation process that makes the problem parabolic and thus compacts the spectrum of the Jacobian ...

OBJECTIVE AND METHODS This study established a simple stereological method to obtain quantitative information about two- or three-dimensional structures based on observations from kidney sections in the unilateral ureteral obstruction(UUO) model. RESULTS Tubulointerstitial area(TA) and TA/the area of a rectangular field(RA) were raised gradually, but significantly, in the obstructed kidney fr...

Route falsification attacks are easy to launch in wireless ad hoc networks with on demand routing protocols that employ network-wide flooding of control packets for route discoveries. Colluding insider malicious nodes with no special hardware capability can use packet encapsulation and tunnelling to create bogus short-cuts in routing paths and influence data traffic to flow through them. The cu...

z Evidence summary Flexor tenosynovitis and de Quervain’s tenosynovitis are the 2 most common types of tenosynovitis of the hand. While the term “tenosynovitis” implies an inflammatory condition, pathoanatomically it is better described as a friction overuse injury, resulting in fibrosis Yes. steroid injections are an effective first-line therapy for flexor tenosynovitis of the hand, with a num...

In this work we consider the Successive Overrelaxation (SOR) method for the solution of a linear system Ax = b, when the matrix A has a block p X P partitioned p-cyclic form and its associated block Jacobi matrix Jp 1s weaJdy cyclic of index p. Following the pioneering work by Young and Varga in the 50s many researchers have considered various cases for the spectrum 0'(Jp ) and have determlned ...

PURPOSE The purpose of the study was to investigate the relationship between CK variability and body composition and muscle damage markers following eccentric exercise. METHODS Total 119 healthy male subjects were recruited to perform 50 eccentric contractions consisted of 2 sets of 25 contractions. Then, blood creatine kinase (CK) activity was analyzed to divide into three groups based on th...

The role of the medical intern or resident has long been evolving. Beginning in the late 19th century, residency was a relatively informal and unstructured system of training. By the early 21st century, residency and postgraduate medical training have evolved into sophisticated, resource-intensive programs, which are now mandatory for licensure in most countries, including Canada. The formaliza...