2015). CRC is one of the most common cancers in Iran, which has increased in recent years. The incidence of this cancer in Iran is lower than other developed countries; however, in-recent decades, this rate has increased significantly. According to national reports of Iran cancer registration in 2009, colorectal cancer is the third most common cancer in women and the fourth most common cancer in men
Background: The unsafe use of chemical pesticides, along with the lack of appropriate preventive protocols and equipment may damage the health of users. Objective: To determine the knowledge and practice of the safe use of chemical pesticides by farm workers in northern Iran. Methods: The present cross-sectional study was conducted on 300 farmers in Mazandaran province, in 2017. The data collection instrument was a two-part questionnaire: The first part was concentrated on demographic and agricultural characteristics of the participants; the second part dealt with the farmers' knowledge and practice of the safe use of pesticides. Results: The mean knowledge and practice scores (out of 100) of the participating farmers in the safe use of pesticides were 84.8 (SD 13.5) and 50.8 (13.2), respectively. There was a significant positive correlation (r=0.466, p<0.001) between their knowledge and practice. Wearing protective clothes, while applying pesticides, was among safe practices. Although more than 60% of farmers had a sufficient level of knowledge of the safe use of pesticides, they did not implement their knowledge in practice. There was a significant (p<0.001) association between the education level and knowledge of the safe use of pesticides. Conclusion: There was a significant correlation between knowledge and practices of the safe use of pesticides among farmers in northern Iran. There was a clear know-do gap—although the majority of the participants possessed a sufficient level of knowledge of the safe use of pesticides, they did not implement it in practice.
BackgroundIn recent years the generation rate of construction and demolition waste (C&D) has significantly augmented. The aim of this study was to assessed the quality and quantity of construction and demolition waste in Tehran (capital of Iran).MethodsQuestionnaire methods were used for estimating the amount of generated C&D wastes national statistical data and typical waste generation data. In order to defining the composition of C&D waste, trucks were randomly selected and their wastes were separated and weighted.ResultsAccording to obtained results, about 82,646,051 m3 of C&D waste (average 16,529,210 m3 per year) were generated during 2011 to 2016 which only about 26% of them has been recycled. Mixing sand and cement, concrete, broken bricks and soil have the highest amount of the composition of C&D waste in Tehran that was 30, 19, 18 and 11%, respectively. Based on the results, about 2,784,158 t of the waste will generate in 2025 and this is approximately 122% higher than wastes generate in 2016. Based on MAPSA’s data, 360 teams of personnel cruise and control the illegal disposals, but due to the expansion of Tehran this number of teams is inadequate and can’t be effective in controlling the situation.ConclusionIn general, the overall condition of C&D waste management in Tehran seems undesirable and needs to be updated based on the experience of successful countries in this field.
Background: Contamination of hair dyes to heavy metals can threaten consumer's health. We investigated the concentrations of some important heavy metals in hair dyes and evaluates their non-carcinogenic effects. Methods: The most commonly used hair dyes were determined through questioners and 32 samples were collected from the market of Tehran in 2014. The concentration of 10 heavy metals (Fe, Ag, Co, Cr, Mn, Ba, Cd, Cu, Pb, and Al) was determined using ICP-MS. Based on the obtained data from distributed questionnaires and Monte Carlo simulation, the exposure to the evaluated heavy metals was estimated. Besides, using hazard quotient (HQ) and chronic hazard (HI), the risk of non-carcinogenic effects of investigated hair dyes consumption was specified. Results: Results indicated the average concentrations of Al, Ba, and Fe as 0.54, 0.86, and 1.19 mg kg-1 and those of Cd, Cu, and Pb as 0.45, 61.32, and 185.34 µg kg-1, respectively. Pb with HQ of 7.46e-4 had the highest risk and Fe with HQ of 3.4e-6 had the lowest level of risk. Among the investigated dyes, the ones made by Iran (HI=2.8e-4) and the dark brown color (HI=1.93e-4) had the highest level of risk among all the studied samples. Conclusion: Two indices of HI and HQ showed that heavy metal contents in the investigated samples had not probable non-carcinogenic risks for the consumers of these products.
Background: Pregnancy is considered a period of emotional crisis. However, attention to the mental status of a pregnant mother is often neglected by health care providers. This study was conducted to determine the effect of narrative writing on the depression, anxiety, and stress of pregnant women referring to the pregnancy care clinics in the south health centers affiliated with
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