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Tarbiat Modares University

Articles by Tarbiat Modares University

Simulating the dispersion of poisonous organic chemical compounds in wastewater treatment process through the active sludge method using the TOXChem model

Published on: 24th June, 2021

OCLC Number/Unique Identifier: 9124851637

Naturally, microorganisms decompose the organic material existing in nature, both in the presence or absence of oxygen. The majority of materials such as poisonous chemical compounds, heavy metals, would prevent the treatment process from taking place, lead to the entry of these contaminants into the environment results in the emergence of numerous diseases. In the present study, using the TOXChem4.1 simulation model, attempts were made to simulate a wastewater treatment plant and then assess the dispersions of contaminants including 1,2-Dimethylnaphthalene, 1,3-Dinitropyrene, 1,6-Dimethylnaphthalene, 1,6-Dinitropyrene, and 17a-ethinylestradiol (EE2) in concentrations of a common scenario. The results of computer simulations showed that the EE2 contaminant is of the highest percentage of decomposition among others, due to its wider chemical structure. Consequently, it is clear that such contaminant is of the highest mass in the sludge exiting the treatment plant. In addition, the results of the simulations demonstrated that the highest volumes of gaseous pollutants take place in the modulation and initial sedimentation units.
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Investigating the Effect of the Family-Centered Empowerment Model (FCEM) on the Empowerment Indicators of Student Girls with Iron Deficiency Anemia (IDA) and Their Mothers

Published on: 27th August, 2025

Background and aims: Iron deficiency is one of the most important health issues in adolescents, especially girls. Today, empowerment is considered an effective program to change behavior in chronic disease control. This study was conducted to determine the effect of the family-centered empowerment model on the empowerment indicators of student girls with iron deficiency anemia and their mothers.Methods: This is a two-group semi-experimental study conducted on 60 student girls along with their mothers, who were selected by a two-stage cluster random sampling method. Data was collected using a demographic information questionnaire and an adolescent and mother empowerment questionnaire. The intervention based on the family-centered empowerment model was implemented for the test group, and after 1.5 months, data from both groups were collected and analyzed with chi-square, independent t, and paired t-tests.Results: The results of the independent t-test showed that there was a significant difference between the student girls in the test and control groups after the intervention in terms of empowerment indicators (p < 0.05). The results of the independent t-test showed that there was a significant difference between the mothers in the test and control groups after the intervention in terms of ability indicators (p < 0.05), while before the intervention, this difference was not significant (p > 0.05). Conclusion: The results of the present study showed that the implementation of the family-centered empowerment model not only increased the empowerment indicators of student girls with iron deficiency anemia but also had an effect on the empowerment of their mothers.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat
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