background: helicobacter pylori may cause many gastrointestinal problems in developing countries such as iran. we aimed to analyze the cost- effectiveness and cost- utility of the test-and-treat and empirical treatment strategies in managing helicobacter pylori infection.            methods: this was a markov based economic evaluation. effectiveness was defined as the symptoms free numbers and ...

The elimination tree plays an important role in many aspects of sparse matrix factorization. The height of the elimination tree presents a rough, but usually eeective, measure of the time needed to perform parallel elimination. Finding orderings that produce low elimination trees is therefore important. As the problem of nding minimum height elimination tree orderings is NP-hard, it is interest...

Introduction: All-optical wavelength converters (AOWC) are envisioned to be part of future high-speed networks. In particular, they might replace optical-to-electrical-to-optical (OEO) wavelength translator units in optical crossconnects [1]. However, to be practical, AOWCs must be able to convert signals that have been degraded during transmission over reasonable distances. Tolerance to timing...

eremurus and forage are main by-products in the khazangah rangelands of makoo region. eremurus is harvested and used by local people in a period of 30 days during the spring in this region. at this study, eremurus and forage have been evaluated financially and the data were obtained through field work using unstructured interviews as well as direct observation. the harvested eremurus value was ...

Introduction: Since ancient times Malaria in Iran has been considered as a serious health risk, especially in Hormozgan Province, as no other disease like Malaria has imposed irreparable financial and life losses to the country. Since saving costs in the healthcare sector comes as first priority in most countries, this study aims at launching a cost-effectiveness analysis on malaria diagnosis d...

Chromosomes exhibit several features indicating that its spatiotemporal dynamics s self-organized. It has been recently suggested that anegative correlationbetween genome size and mean chromosome number would also be a fingerprint of selforganization, related to how human language is organized at the level of words and syllabes. However, the vast dominance of non-coding DNA in eukaryotic genome...