نتایج جستجو برای: in arak
تعداد نتایج: 16976357 فیلتر نتایج به سال:
Background: Occupational exposure to blood and body secretions poses a significant risk of COVID-19, HIV, HCV, HBV among healthcare workers (HCWs). Assessment this is necessary for optimized planning policy-making measures. This study aimed assess the occupational factors emergency HCWs. Methods: cross-sectional was performed on HCWs working in 3 educational hospitals affiliated with Arak Unive...
background: helicobacter pylori ( h. pylori ) is a global pathogen with a widely varied prevalence (30%-80%) among different countries and populations. this study aims to determine the prevalence of h. pylori in the population of arak, iran. materials and methods: this was an epidemiologic cross-sectional population-based study with multistage sampling. the population of arak according to the 2...
Background and Objectives: Musculoskeletal disorders are one of the most common work-related disorders, which have high prevalence not only among hard and hurtful jobs, but also in office jobs. The aim of the present study was to determine the prevalence of musculoskeletal disorders its associated factors among Education Office employees in Arak in 2016-17. Materials and Methods: This descript...
Dryer system is a controlled plant which is normally used in chemical industry. The proper modeling of this system facilitates its maintenance and keeping. Normally this is not an easy task, unless having a complete model of the process, due to sudden and nonlinear events. In this paper the linear identification of dryer plant in Arak petroleum, is introduced according to the Autoregressive wit...
Background and Objectives: Arsenic contamination is of great environmental concern due to its toxic effects as a carcinogen. In order to assess soil arsenic contamination and its distribution patterns, surface soil samples collected from the urban areas of Arak were analyzed. Materials and Methods: Totally, 62 surface soil samples were collected from depth of 0–20 cm of different locations incl...
In order to investigate concentrations, variability, sources, and human health risk of trace elements, 38 atmospheric dust samples were collected around Arak industrial area. The average concentrations Cd~Zn, As, Pb 3.3, 2.5, 2.4 times higher than the corresponding geochemical background, respectively, while Co, Cu, Ni, Hg lower. Based on geo-accumulation index (Igeo), elements classified betwe...
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