Gradient based algorithms for adaptive estimation of fractional time delay are known to suffer from lock-up phenomena to some extend. This is mainly due to errors in the gradient estimate which are on its term caused by interpolation errors. By studying the expected behavior of a class of stochastic descent algorithms, we are able to show that by replacing derivatives with finite differences, l...

Most recent research in learning approaches to natural language have studied fairly "low-level" tasks such as morphology, part-of-speech tagging, and syntactic parsing. However, I believe that logical approaches may have the most relevance and impact at the level of semantic interpretation, where a logical representation of sentence meaning is important and useful. We have explored the use of i...

Background: Association between Helicobacter pylori (HP) infection and migraine and the effect of HP eradication on relief of migraine headache have been studied but the results are controversial. Objectives: To evaluate the effect of HP eradication in treatment of patients affected by migraine. Materials and Methods: Eighty consecutive HP infected patients affected by migraine without au...

A field experiment was performed to investigate the effect of several variables on helping behavior, using the express trains of the New York 8th Avenue Independent Subway as a laboratory on wheels. Four teams of students, each one made up of a victim, model, and two observers, staged standard collapses in which type of victim (drunk or ill), race of victim (black or white) and presence or abse...

Background:  Clavicle fractures are common and usually heal without complications. In this study, we evaluated the outcomes of non-operative versus operative management of displaced fractures.   Methods:  In a prospective clinical trial study, sixty-five patients with displaced clavicle mid-shaft fractures were nonrandomly divided in two treatment groups. The first group underwent non-operative...

background: the readmission rate for neonatal jaundice has been increased in recent years. this has been attributed to shorter length of postpartum hospital stays without comprehensive follow-up. the purpose of this study was to determine the diagnostic value of pre-discharge transcutaneous bilirubin (tcb) levels for prediction of subsequent hyperbilirubinemia in healthy term neonates. methods:...

Introduction: Pulpectomy is a conservative treatment plan for primary necrotic teeth and Zinc Oxide Eugenol is still a good choice as root canal filling material but long term studies on poor prognosis molars are limited and almost contradictory. The purpose of this study is to evaluate the clinical and radiographical success rate of pulpectomy of necrotic primary molars using ZOE as the root c...

this study was initiated to evaluate the long-term safety, tolerability and efficacy of seizure control of lamotrigine (ltg) in children and adult patients with partial seizures (ps) with or without secondary generalized seizure. a total of 132 patients (age 5-41 years) with treatment-resistant epilepsy received ltg as addon therapy for up to four years. overall, patients were treated with ltg ...