نتایج جستجو برای: ecological behavior measurement index
تعداد نتایج: 1484422 فیلتر نتایج به سال:
Background and Objective: Application of sewage sludge contaminated with heavy metals may cause health and ecological concern. Ecological risk and heavy metals content of sewage sludge from wastewater treatment plants of East Azerbaijan province were evaluated in the present study. Materials and Methods: Nine composite samples were taken and analyzed for heavy metals. The geo-accumulation inde...
the concentration of selected trace metals (fe, cd, cu, pb, and zn) in 30surface sediments were measured using atomic absorption spectrometer to investigatethe spatial and seasonal variations of trace metals along kanyakumari coast, india. toassess the environmental risk of trace metals, enrichment factor, geo-accumulation index,pollution load index, and ecological risk index have been calculat...
Four heavy metals were measured in forty-nine topsoil samples collected fromagricultural areas in Siakh-Darengoun, Iran. The goals were to investigate soil spatialdistribution patterns of metals; their potential ecological risk; and sources. The Hakansonpotential ecological risk index and index of geo-accumulation (Igeo) were used forevaluating t...
Background and purpose: Heavy metals in urban air are major health threats and increase the risk of respiratory, cardiovascular, and cancers in humans. An efficient and low-cost method for monitoring these pollutants is using tree bark as a bioindicator. The purpose of this study was to measure the concentration of heavy metals by pine tree bark as a bioindicator in Neishabur, north-east of Ira...
conclusions the study concluded that there were certain criteria related to development of obesity during a specific period of childhood and taking certain precautions could be effective in preventing it. results the median age was 10.3 ± 2.1; 47.6% of the children were female and 52.4% of them were male. about 70.2% of the students consumed fast food. it was identified that 67.1% of the studen...
The present paper introduces an innovative approach for anomaly-based IDS. The main idea is to construct model that characterizes the expected/acceptable behavior of the system using a clustering algorithm based on a 2-means clustering anomaly detection technique and a classification tree. Methods for clustering, training and detection are provided. The applied parameter, considered for perform...
Mites are the best representative of soil arthropods because they are the most diverse in terms of ecological niche and behavior. In this study, abundance and biodiversity of laelapid soil mites were evaluated in eight sites in Saman and Shahrekord, with each site including an orchard and a farmland. There was a significant difference in the Shannon-Wiener diversity index of laelapid mites amon...
Background and aims: Safety behavior is a type of job behavior that promotes the health and safety of workers, clients, public and environment. One of the methods for assessment of safety behavior is the use of questionnaire but So far not provided a validated questionnaire in Iran for assessment of safety behavior. The present study was designed to develop a measurement tool for assessment of ...
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