Introduction Optimization has been playing a prominent role in any of the modern image processing techniques, and variational models are used in such different fields as image segmentation and edge de...
Herp (homocysteine-induced endoplasmic reticulum protein) is an ER-resident membrane protein, which has a ubiquitin-like domain at its N-terminus. Expression of Herp protein is up-regulated in respons...
In this paper we present two varients of the EM-algorithm for dynamic SPECT imaging: (a) a version based on compartmental modeling which fits a sum of exponentials, and (b) a more general approach all...
Introduction Single Photon Emission Computed Tomography (SPECT) is a nuclear medicine diagnosis technique which measures the three dimensional distribution of a radioactively labeled pharmaceutical in...
Abstract. We discuss a partially augmented Lagrangian method for optimization programs with matrix inequality constraints. A global convergence result is obtained. Applications to hard problems in fee...
Introduction Single Photon Emission Computed Tomography (SPECT) is a nuclear medicine diagnosis technique which measures the three dimensional distribution of a radioactively labeled pharmaceutical in...
BACKGROUND: Elevated plasma homocysteine concentrations can influence genomic and gene-specific DNA methylation in peripheral blood cells. The aim of this study was to investigate in patients with alc...