Hamid Reza Sadegh Mohammadi

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OBJECTIVE To determine the prevalence of congenital hypothyroidism (CH), permanent and transient CH. METHODS From November 2006 to September 2007, 63031 newborns were screened by measuring serum TSH obtained by heel prick. The neonates who had a TSH≥5mU/L were recalled for measurement of serum T(4), thyroid stimulating hormone (TSH) and TSH receptor(More)
In this paper a new structured Gaussian mixture model, called sorted GMM, is proposed as an efficient method to implement GMM-based speaker verification systems; such as Gaussian mixture model universal background model (GMM-UBM) scheme. The proposed method uses a sorted GMM which facilitate partial search and has lower computational complexity and less(More)
Gaussian selection is a technique applied in the GMM-UBM framework to accelerate score calculation. We have recently introduced a novel Gaussian selection method known as sorted GMM (SGMM). SGMM uses scalar-indexing of the universal background model mean vectors to achieve fast search of the top-scoring Gaussians. In the present work we extend this method(More)
In this paper we propose a new segmentation algorithm called Delta MFCC based Speech Segmentation (DMFCC-SS), with application to speaker recognition systems. We show that DMFCC-SS can separate the regions of speech that result from similar likelihood scores using models such as a Gaussian Mixture Model (GMM), and can therefore be used to identify the(More)
BACKGROUND Transcatheter patent ductus arteriosus (PDA) closure is an established procedure. OBJECTIVES The aim of the study was to assess midterm follow up of the Nit-Occlud coil and the amplatzer ductal occluder (ADO) closure of PDA. PATIENTS AND METHODS In this cohort study, we collected the longitudinal data of patients who underwent percutaneous(More)
BACKGROUND The purpose of this study was to investigate the effect of 12-week of aerobic training on homocysteine, lipoprotein A and lipid profile levels in sedentary middle-age men. METHODS This was a quasi-experimental study. Subjects of the study were 24 men (age 40-60) who participated is the study voluntarily and were randomly assigned in aerobic (n(More)