Introduction: The unique properties of nanomaterials, in addition to their applications in scienc... more Introduction: The unique properties of nanomaterials, in addition to their applications in science and technology, can be a threat to human health and the environment. Exposure to these materials may occur in workplaces or research laboratories. It can be said that about half of people with occupational exposure to nanomaterials work in academic environments and laboratories. So, the present study was conducted to design and validate a tool to investigate the principles of working safely with nanomaterials in research laboratories. Materials & Methods: The tool was designed using reports, instructions and articles related to " Methods of working safely with nanomaterials". The validity of the tool was assessed using Lawshe method by calculating CVI and CVR. The reliability of the instrument was evaluated using Cronbach's alpha coefficient and kappa coefficient. Results: The tool was designed in 5 sections: "General Information", "Transportation and Storage of Nanomaterials", "Engineering Controls", "Administrative Controls" and "Personal Protection Equipment". After validation, 5 items did not get the necessary points to stay in the tool and were removed. The Cronbach's alpha value for each section of the tool was more than 0.80, indicating that the was "appropriate". Conclusion: According to the results, it seems that the tool studied in this study is compatible for the designed purpose and is ready to be used as a questionnaire or checklist.
The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicate... more The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicates a threat to human health that has led to the attention and expansion of risk assessment methods.
Human Factors and Ergonomics in Manufacturing & Service Industries
Nowadays, the combination of “Nanotechnology” and “Ergonomics” has been known as “Nano‐ergonomics... more Nowadays, the combination of “Nanotechnology” and “Ergonomics” has been known as “Nano‐ergonomics.” Nano‐ergonomics can help to develop more comfortable conditions in workplaces. So, the aim of this study is to reveal benefits of nanotechnology for occupational health and safety design, especially ergonomic design. The search strategy was provided based on cochrane guidelines with main search terms of “Nanotechnology,” “Nanomaterial,” and “Nanoparticle” combined with “Ergonomics” and “Human Factors.” PubMed, Scopus, Web of Sciences and Google Scholar Databases were researched for relevant articles. Also, Google search engine was used to find nano‐ergonomic commercial products and to complete the research with identifying additional information. A total of 32 articles were first achieved. By providing Synthesis Without Meta‐analysis reporting guideline, finally, four studies were regarded as appropriate. The results showed that nanotechnology has developed in three major areas of erg...
The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicate... more The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicates a threat to human health that has led to the attention and expansion of risk assessment methods.
Background Cigarette smoke is an aerosol containing more than thousands of chemical compounds, se... more Background Cigarette smoke is an aerosol containing more than thousands of chemical compounds, several of which are carcinogens and toxic. Many efforts have been made to use nanomaterials (NMs) to remove and filter toxic substances in cigarette smoke. Due to the characteristics of MLs and their selectivity to different compounds, NMs have a high potential for practical application in reducing harmful compounds in cigarette smoke. The objective of this systematic review is to collect, combine, and analyze the basic intervention research on NMs for removal and reduction of harmful substances in cigarette smoke. This systematic review will determine the most important factors and expected characterizations for the development or commercialization of a new filters. Finally, we will review the challenges of using NMs-based interventions. Methods This protocol is based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-P protocol and Cochrane methodology. T...
Abstract In nuclear and mitochondrial DNA, 8-hydroxy-2′-deoxyguanosine (8-OHdG) is one of the pre... more Abstract In nuclear and mitochondrial DNA, 8-hydroxy-2′-deoxyguanosine (8-OHdG) is one of the predominant forms of reactive oxygen species (ROSs) lesions, which commonly used as a biomarker for oxidative stress. Studies showed that the different nanomaterials can induce toxicity by ROSs in human body. So, this study is going to review the studies about oxidative DNA damage caused by occupational exposure to nanomaterials, using 8-OHdG biomarker. Systematic review was managed based on Cochrane systematic review guideline. Literature search was conducted in scientific databases with the main terms of “biomarkers,” “biological markers,” combined with “occupational exposure” and “nanomaterials.” All papers in the field of occupational exposure to nanomaterials until 2020 December were included. To evaluate the quality and bias of studies, GRADE method (Grading of Recommendations, Assessment, Development, and Evaluation) was used. Two hundred twenty-six studies were primarily achieved. By considering the inclusion criteria, overall 8 articles were selected. The majority of the studies were classified as the moderate quality studies (six studies). Also, the study-level bias was critical. This review shows that there is a significant relationship between job title and amount of produced nanomaterials and the existence of 8-OHdG. Also, the levels of 8-OHdG can be measured in urine, blood, and inhalation samples by instrumental procedures. Oxidative damages are an important threat for workers exposed to nanomaterial. Blood and EBC 8-OHdG level can be introduced as a biomarker for metal nanomaterials, but urinary 8-OHdG needs to be taken with caution. So, it is recommended that evaluation not be solely based on one biomarker.
Introduction: The unique properties of nanomaterials, in addition to their applications in scienc... more Introduction: The unique properties of nanomaterials, in addition to their applications in science and technology, can be a threat to human health and the environment. Exposure to these materials may occur in workplaces or research laboratories. It can be said that about half of people with occupational exposure to nanomaterials work in academic environments and laboratories. So, the present study was conducted to design and validate a tool to investigate the principles of working safely with nanomaterials in research laboratories. Materials & Methods: The tool was designed using reports, instructions and articles related to " Methods of working safely with nanomaterials". The validity of the tool was assessed using Lawshe method by calculating CVI and CVR. The reliability of the instrument was evaluated using Cronbach's alpha coefficient and kappa coefficient. Results: The tool was designed in 5 sections: "General Information", "Transportation and Stora...
Iran Occupational Health http://ioh.iums.ac.ir Iran Occupational Health. 2020 (4 Apr);17:1. Origi... more Iran Occupational Health http://ioh.iums.ac.ir Iran Occupational Health. 2020 (4 Apr);17:1. Original Article Lighting and color temperature assessment in the office workplaces and relations i to visual fatigue Rostam Golmohammadi, (*Corresponding author), Professor, Department of Occupational Health, School of Health and Center f r Health Sciences Research, Hamedan University of Medical Scie ces, Hamedan, Iran. golmohamadi@umsha.ac.ir Zahra Pirmoradi, MSc, Department of Occupational Hygiene, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran Majid Motamedzadeh Torghabeh, Professor, Department of Ergonomics, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran Javad Fardmal, Professor, Associate Pr fessor, Department of Biostatistics, School of Health, H mad n University of Medical Sciences, Hamadan, Iran
Introduction: The unique properties of nanomaterials, in addition to their applications in scienc... more Introduction: The unique properties of nanomaterials, in addition to their applications in science and technology, can be a threat to human health and the environment. Exposure to these materials may occur in workplaces or research laboratories. It can be said that about half of people with occupational exposure to nanomaterials work in academic environments and laboratories. So, the present study was conducted to design and validate a tool to investigate the principles of working safely with nanomaterials in research laboratories. Materials & Methods: The tool was designed using reports, instructions and articles related to " Methods of working safely with nanomaterials". The validity of the tool was assessed using Lawshe method by calculating CVI and CVR. The reliability of the instrument was evaluated using Cronbach's alpha coefficient and kappa coefficient. Results: The tool was designed in 5 sections: "General Information", "Transportation and Storage of Nanomaterials", "Engineering Controls", "Administrative Controls" and "Personal Protection Equipment". After validation, 5 items did not get the necessary points to stay in the tool and were removed. The Cronbach's alpha value for each section of the tool was more than 0.80, indicating that the was "appropriate". Conclusion: According to the results, it seems that the tool studied in this study is compatible for the designed purpose and is ready to be used as a questionnaire or checklist.
The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicate... more The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicates a threat to human health that has led to the attention and expansion of risk assessment methods.
Human Factors and Ergonomics in Manufacturing & Service Industries
Nowadays, the combination of “Nanotechnology” and “Ergonomics” has been known as “Nano‐ergonomics... more Nowadays, the combination of “Nanotechnology” and “Ergonomics” has been known as “Nano‐ergonomics.” Nano‐ergonomics can help to develop more comfortable conditions in workplaces. So, the aim of this study is to reveal benefits of nanotechnology for occupational health and safety design, especially ergonomic design. The search strategy was provided based on cochrane guidelines with main search terms of “Nanotechnology,” “Nanomaterial,” and “Nanoparticle” combined with “Ergonomics” and “Human Factors.” PubMed, Scopus, Web of Sciences and Google Scholar Databases were researched for relevant articles. Also, Google search engine was used to find nano‐ergonomic commercial products and to complete the research with identifying additional information. A total of 32 articles were first achieved. By providing Synthesis Without Meta‐analysis reporting guideline, finally, four studies were regarded as appropriate. The results showed that nanotechnology has developed in three major areas of erg...
The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicate... more The prevalence of non-specific symptoms resulting of the increasing use of nanomaterials indicates a threat to human health that has led to the attention and expansion of risk assessment methods.
Background Cigarette smoke is an aerosol containing more than thousands of chemical compounds, se... more Background Cigarette smoke is an aerosol containing more than thousands of chemical compounds, several of which are carcinogens and toxic. Many efforts have been made to use nanomaterials (NMs) to remove and filter toxic substances in cigarette smoke. Due to the characteristics of MLs and their selectivity to different compounds, NMs have a high potential for practical application in reducing harmful compounds in cigarette smoke. The objective of this systematic review is to collect, combine, and analyze the basic intervention research on NMs for removal and reduction of harmful substances in cigarette smoke. This systematic review will determine the most important factors and expected characterizations for the development or commercialization of a new filters. Finally, we will review the challenges of using NMs-based interventions. Methods This protocol is based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-P protocol and Cochrane methodology. T...
Abstract In nuclear and mitochondrial DNA, 8-hydroxy-2′-deoxyguanosine (8-OHdG) is one of the pre... more Abstract In nuclear and mitochondrial DNA, 8-hydroxy-2′-deoxyguanosine (8-OHdG) is one of the predominant forms of reactive oxygen species (ROSs) lesions, which commonly used as a biomarker for oxidative stress. Studies showed that the different nanomaterials can induce toxicity by ROSs in human body. So, this study is going to review the studies about oxidative DNA damage caused by occupational exposure to nanomaterials, using 8-OHdG biomarker. Systematic review was managed based on Cochrane systematic review guideline. Literature search was conducted in scientific databases with the main terms of “biomarkers,” “biological markers,” combined with “occupational exposure” and “nanomaterials.” All papers in the field of occupational exposure to nanomaterials until 2020 December were included. To evaluate the quality and bias of studies, GRADE method (Grading of Recommendations, Assessment, Development, and Evaluation) was used. Two hundred twenty-six studies were primarily achieved. By considering the inclusion criteria, overall 8 articles were selected. The majority of the studies were classified as the moderate quality studies (six studies). Also, the study-level bias was critical. This review shows that there is a significant relationship between job title and amount of produced nanomaterials and the existence of 8-OHdG. Also, the levels of 8-OHdG can be measured in urine, blood, and inhalation samples by instrumental procedures. Oxidative damages are an important threat for workers exposed to nanomaterial. Blood and EBC 8-OHdG level can be introduced as a biomarker for metal nanomaterials, but urinary 8-OHdG needs to be taken with caution. So, it is recommended that evaluation not be solely based on one biomarker.
Introduction: The unique properties of nanomaterials, in addition to their applications in scienc... more Introduction: The unique properties of nanomaterials, in addition to their applications in science and technology, can be a threat to human health and the environment. Exposure to these materials may occur in workplaces or research laboratories. It can be said that about half of people with occupational exposure to nanomaterials work in academic environments and laboratories. So, the present study was conducted to design and validate a tool to investigate the principles of working safely with nanomaterials in research laboratories. Materials & Methods: The tool was designed using reports, instructions and articles related to " Methods of working safely with nanomaterials". The validity of the tool was assessed using Lawshe method by calculating CVI and CVR. The reliability of the instrument was evaluated using Cronbach's alpha coefficient and kappa coefficient. Results: The tool was designed in 5 sections: "General Information", "Transportation and Stora...
Iran Occupational Health http://ioh.iums.ac.ir Iran Occupational Health. 2020 (4 Apr);17:1. Origi... more Iran Occupational Health http://ioh.iums.ac.ir Iran Occupational Health. 2020 (4 Apr);17:1. Original Article Lighting and color temperature assessment in the office workplaces and relations i to visual fatigue Rostam Golmohammadi, (*Corresponding author), Professor, Department of Occupational Health, School of Health and Center f r Health Sciences Research, Hamedan University of Medical Scie ces, Hamedan, Iran. golmohamadi@umsha.ac.ir Zahra Pirmoradi, MSc, Department of Occupational Hygiene, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran Majid Motamedzadeh Torghabeh, Professor, Department of Ergonomics, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran Javad Fardmal, Professor, Associate Pr fessor, Department of Biostatistics, School of Health, H mad n University of Medical Sciences, Hamadan, Iran
Uploads
Papers by soqrat omerî