Background: Non-steroidal anti-inflammatory drug (NSAID) use and H pylori infection are two major causes of peptic ulcers. This study investigates the effect of H pylori infection and NSAIDs on gastroduodenal damages and bleeding (GIB). Methods: 104 patients with acute gastrointestinal bleeding (GIB) and 102 patients with dyspepsia without bleeding were studied. Duodenal (DU) and gastric ulcers...

recently, the existing mechanism of the market has been considered as an efficient method for allocating water resources in some developed and developing countries. the necessary conditions to establish an efficient water market and its economic consequents must be recognized before using this method in iran. the purpose of this study is to investigate the economic consequences and present prac...

Upon release, Pokemon Go, an augmented reality technology based game garnered tremendous interest in the public, with an average of 20 million daily active users. The game combines geo-spatial elements along with gamification practices to incentivize it’s users movement in the physical world. Such incentives can have potential externalities to businesses associated with them. Using online revie...

OBJECTIVES There is little information about continued use of point-of-use technologies after disaster relief efforts. After the 2004 tsunami, the Red Cross distributed ceramic water filters in Sri Lanka. This study determined factors associated with filter disuse and evaluate the quality of household drinking water. METHODS A cross-sectional survey of water sources and treatment, filter use ...

background: the users’ satisfaction is a method for evaluating the efficacy of healthcare system. we aimed to evaluate the association between the users’ socioeconomic status (ses) and satisfaction with the healthcare system in shiraz, iran. methods: this cross-sectional study was conducted from december, 2013 to march, 2014, in shiraz, iran. 3400 households were recruited by multi-stage cluste...

Due to the rapid growth of data mining technology, obtaining private data on users through this technology becomes easier. Association Rules Mining is one of the data mining techniques to extract useful patterns in the form of association rules. One of the main problems in applying this technique on databases is the disclosure of sensitive data by endangering security and privacy. Hiding the as...

In this paper, we want to improve association rules in order to be used in recommenders. Recommender systems present a method to create the personalized offers. One of the most important types of recommender systems is the collaborative filtering that deals with data mining in user information and offering them the appropriate item. Among the data mining methods, finding frequent item sets and ...

The variation of the overlap of the astronomical and water-vapor radiometer beams with height in the atmosphere is investigated for the current BIMA setup, and is compared with similar calculations for OVRO and a proposed system for ALMA. The findings are that at BIMA, the 3-mm and 1.3-cm beams essentially do not overlap above a height of 1 km. The linear separation of the beams is 35 m at a ze...

This study analyzes mobile phone data derived from 10 million daily active users across the United States to better understand the spatio-temporal activity patterns of users in Central Park, New York. The aim of this initial investigation is to create quantifiable measures for understanding public space usage in regions of the city that have no natural data source for measuring activity. We ana...