نتایج جستجو برای: exposure control

تعداد نتایج: 1589292  

Background: Liver is an important organ that responsible for biological detoxification. There are few studies about the effect of co-exposure to organic solvents and noise on hepatic system enzymes. The study aim was to assess the effects of short-term exposure to noise and styrene on rat liver enzymes. Materials and Methods: In this experimental study, we studied the liver enzymes of male r...

Journal: :basic and clinical neuroscience 0
mohsen marzban ali shahbazi mahdi tondar mansooreh soleimani masoomeh bakhshayesh arash moshkforoush

introduction: it has shown that listening to mozart music can potentiate spatial tasks in human and reduce seizure attacks in epileptic patients. a few studies have reported the effects of prenatal plus postpartum exposure of mice to the mozart music on brain-drived neurotrophic factor (bdnf) in the hippocampus. here we investigated the effect of postpartum exposure to the mozart music on bdnf ...

Journal: :تحقیقات دامپزشکی 0
سید سعید میرزرگر فرزاد غیاثی حسینعلی ابراهیم زاده موسوی جمیله سالار عاملی علیرضا باهنر

the 60 apparently common carp, cyprinus carpio (mean weight 700g.) divided to two groups (1:control and 2: test) and transferred to 1000 liter indoor fiberglass tanks supplied with static well water, continuous aeration and defined water quality. test group was exposed to 30ppb (low concentration) cadmium as cdcl 2 (merck) control group was without cadmium addition . blood samples were caught r...

Journal: :international journal of occupational hygiene 0
zahra naghavi-konjin department of occupational health, school of public health, alborz university of medical sciences, karaj, iran. mansour rezazadeh-azari department of occupational health, school of public health, shahid beheshti university of medical sciences, tehran, iran. yaser shekoohi department of occupational health, school of public health, alborz university of medical sciences, karaj, iran. mitra rahimzadeh research center of social health determinant, alborz medical university, karaj, iran. mirdavoud seyedi national iranian oil production and distribution company – hse department.

exposure to toluene can be associate with genotoxicity, neurological dysfunction, reproductive toxicity, and etc. biomonitoring of hippuric acid (ha) is used for a long time as an occupational exposure index to toluene. the aim of this study was to explore efficiency of ha as a biomarker of exposure to low level of toluene for iranian petroleum depot workers in 2011. personal monitoring to tolu...

Journal: :international journal of health studies 0
kamal azam 1 1. dept. of biostatistics, school of public health, tehran university of medical sciences, tehran, iran. elham entezari zarch 2* 1. dept. of occupational health, school of health, tehran university of medical sciences, tehran, iran. seyed abolfazl zakerian 3 3. dept. of occupational health, school of public health, tehran university of medical sciences, tehran, iran.

background: the present study examines the effects of iranian traditional music and western classical music during 20 min of pedaling on an ergometer, along with the normal factors of profile of mood states and rate of perceived exertion. methods: seventeen non-athlete participants (11 men and six women) with a mean age of 26±1.5 cycled in three conditions: exposure to iranian traditional music...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران 1388

some researches made in the field of agency problem issue, deal with the role of control systems regarding owners and managers. in this research the relationship between the two control mechanisms, namely the voluntary disclosure (external control mechanism) and outside directors (internal control mechanism), which are reductive of agency problems, has been studied. for this reason, a sample ...

Journal: :iranian red crescent medical journal 0
mohammad reza khazdair department of physiology, school of medicine and pharmaceutical research center, mashhad university of medical sciences. postal code: 9177948564, iran +98-5118002221, [email protected] mohammad hossein boskabady department of physiology, school of medicine and pharmaceutical research center, mashhad university of medical sciences. postal code: 9177948564, iran +98-5118002221, [email protected]; department of physiology, school of medicine and pharmaceutical research center, mashhad university of medical sciences. postal code: 9177948564, iran +98-5118002221, [email protected] reza afshari department of toxicology, school of medicine, mashhad university of medical sciences, iran bita dadpour department of toxicology, school of medicine, mashhad university of medical sciences, iran amir behforouz department of physiology, school of medicine and pharmaceutical research center, mashhad university of medical sciences. postal code: 9177948564, iran +98-5118002221, [email protected] mohammad javidi department of physiology, school of medicine and pharmaceutical research center, mashhad university of medical sciences. postal code: 9177948564, iran +98-5118002221, [email protected]

background the exposure to noxious agwents such as lead my cause lung disorders. objectives in the present study, pulmonary function tests and self-reported respiratory symptoms in lead exposure workers were compared with matched control subjects. materials and methods the frequency of respiratory symptoms were evaluated in a sample of 108 lead exposure workers and 100 control subjects with sim...

Ghanbari M, Khavanin A Khazaei M, Mortazavi SB

Background: There is a great concern for the possible adverse effects of cell phones and noise waves and it looks these wave effects on the individuals’ health. Thus, the present study was conducted to examine the effect of cell phone waves, severity noise, and simultaneous effect of cell phone waves and severity noise on sperm motility and sexual hormones in adult male rats. Materials and Meth...

Journal: :international journal of occupational and environment medicine 0
gi skoufi department of respiratory medicine, medical school, university of thessaly, university hospital of larissa, larissa, biopolis 41110, greece e nena laboratory of hygiene and environmental protection, medical school, democritus university of thrace, alexandroupolis, greece k kostikas department of respiratory medicine, medical school, university of thessaly, university hospital of larissa, larissa, biopolis 41110, greece ga lialios university hospital of larisa, larissa, biopolis 41110, greece tc constantinidis laboratory of hygiene and environmental protection, medical school, democritus university of thrace, alexandroupolis, greece z daniil department of respiratory medicine, medical school, university of thessaly, university hospital of larissa, larissa, biopolis 41110, greece

background: hairdressers are occupationally exposed to a number of agents in their workplace that result in respiratory symptoms and changes in pulmonary function. objective: to evaluate associations between occupational exposure and respiratory function and reported symptoms in a group of hairdressers compared to a control group. methods: a questionnaire on respiratory symptoms and workplace c...

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