Browsing by Subject "MATRIX"
Now showing items 110 of 10

Development and evaluation of QSPECT opensource software for the iterative reconstruction of SPECT images
(2010)Objective In this study opensource software (QSPECT) suitable for the iterative reconstruction of singlephoton emission computed tomography (SPECT) data is presented. QSPECT implements maximum likelihood expectation ... 
EFFECT OF TRANSOSSEOUS APPLICATION OF LOWINTENSITY ULTRASOUND AT THE TENDON GRAFTBONE INTERFACE HEALING: GENE EXPRESSION AND HISTOLOGICAL ANALYSIS IN RABBITS
(2009)The present study investigates the effect of transosseous lowintensity pulsed ultrasound (LiUS) on the healing at tendon graftbone interface, in molecular and histological level. The anterior cruciate ligament (ACL) in ... 
Irreducibility and extensions of Ostrowski's Theorem
(2012)In this paper an extension of Ostrowski's Theorem for complex square irreducible matrices is presented. Also extensions of similar statements for square complex matrices are analyzed and completed. Most of the statements ... 
Nonstationary Extrapolated Modulus Algorithms for the solution of the Linear Complementarity Problem
(2009)The Linear Complementarity Problem (LCP) has many applications as, e.g., in the solution of Linear and Convex Quadratic Programming, in Free Boundary Value problems of Fluid Mechanics, etc. In the present work we assume ... 
A note on Ostrowski's Theorem
(2013)In this note, a further extension of Ostrowski's Theorem, concerning mainly complex square irreducible matrices, is presented. Specifically, classes of irreducible matrices are determined for which the classical statement: ... 
On BrauerOstrowski and Brualdi sets
(2014)For the localization of the spectrum of the eigenvalues of a complex square matrix, the classical Gersgorin Theorem was extended by Ostrowski who used the generalized geometric mean of the row and column sums of the matrix. ... 
On the choice of parameters in MAOR type splitting methods for the linear complementarity problem
(2014)In the present work we consider the iterative solution of the Linear Complementarity Problem (LCP), with a nonsingular H (+) coefficient matrix A, by using all modulusbased matrix splitting iterative methods that have ... 
On the Solution of the Linear Complementarity Problem by the Generalized Accelerated Overrelaxation Iterative Method
(2015)In the present work, we determine intervals of convergence for the various parameters involved for what is known as the generalized accelerated overrelaxation iterative method for the solution of the linear complementarity ... 
Protective Effect of Atorvastatin in Cultured Osteoarthritic Chondrocytes
(2010)The aim of our study was to evaluate the in vitro effect of an HMGCoA reductase inhibitor, atorvastatin, on the expression of significant anabolic and catabolic genes in human osteoarthritic chondrocytes and to explore ... 
SAFB1 interacts with and suppresses the transcriptional activity of p53
(2011)A significant amount of nuclear p53 is found associated with the nuclear matrix in cells that were exposed to genotoxic stress. In this study we identified Scaffold attachment factor B1 (SAFB1), a nuclear matrixassociated ...