نتایج جستجو برای: exposure
تعداد نتایج: 307277 فیلتر نتایج به سال:
background :asthma is the most common respiratory disease with an increasing prevalence. on the other hand, obesity is also a challenging disease compromising health in human communities. this study sought to assess the correlation of asthma and body mass index (bmi) in occupational setting. methods : this study was conducted in a cable manufacturing company in 2012. a total of 551 workers fr...
introduction the purpose of this study was to evaluate personal shields in radiation departments of hospitals affiliated to mashhad university of medical sciences. materials and methods first, the information related to 109 personal shields was recorded and evaluated by imaging equipment. afterwards, the equivalent lead thickness (elt) of 62 personal shields was assessed, using dosimeter and st...
to study the relation between hypertension and noise exposure, after the noise monitoring is weaving and spinning workshops, a especially designed questionnaire was completed and measurement were made of blood pressure, height and weight of 1801 male and female workers employed in these workshops. the results indicated that the systolic and diastolic pressure had a direct relation with age and ...
results the overall prevalence of occupational asthma was 9.7%. this rate was 13.8% in the exposed group. logistic regression analysis showed that even after adjustment for confounding factors, a significant correlation existed between the frequency of occupational asthma and exposure to the produced dust particles (p < 0.05). in addition, age, work experience, body mass index, cigarette smokin...
background: foundry workers are occupationally exposed to hazardous substances such as silica dusts and toxic gases. the aim of this study was to examine the effects of simultaneous exposure to complex mixtures of silica dust, formaldehyde, and triethylamine on lung function parameters. study design: a cross-sectional study. methods: this study was conducted on 55 male workers of core making un...
background: workers exposed to organic solvents are at risk of developing chronic central nervous system disorders. the aim of this cross-sectional study was to investigate the neurobehavioral effects of occupational exposure to organic solvents among pharmaceutical laboratory workers. methods: the study groups consisted of 78 laboratory workers as the exposed group and 98 office workers as une...
background : exposure to formaldehyde (fa) causes irritative effects and induces nasopharyngeal cancer; the international agency for research on cancer (iarc, lyon) classified fa as carcinogenic to humans, group 1. many studies have been published so far concerning the occupational exposure of industrial workers, embalmers, pathologists and anatomists to fa but very few data regarding medical ...
background: hazardous chemicals, which give detrimental effect to the central nervous system, are widely used in the vehicle services industry. the use of vibrotactile perception threshold (vpt) as a screening tool for chemical exposure is new in developing country such as malaysia. therefore, this study determined the relationship between vpt and chemical exposure among vehicle service technic...
abstract background and objective: having knowledge about potential risks and the usage of safety equipment in laboratories can decrease the risk of occupational exposure. the aim of this study was to evaluate the predisposing factors for occupational exposure and to assess the usage of safety equipment among personnel of medical diagnostic laboratories in birjand. material and methods: in this...
conclusions this study revealed a low level of knowledge and practice regarding post-exposure prophylaxis, with the mean score of some respondents being below 50%. objectives this study was conducted with the aim of demonstrating the level of knowledge and practice amongst general dental practitioners in hamadan city, iran in 2013 - 14, in terms of prevention after dealing with blood-borne path...
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