نتایج جستجو برای: exposure control
تعداد نتایج: 1589292 فیلتر نتایج به سال:
the association between indoor smoke exposure due to traditional baking (baking homemade bread) and anthracosis has rarely been investigated. the aim of the present study is to quantify such association among the iranian population. a hospital based case-control study was carried out on 83 anthracotic cases and 155 controls (83 individuals with non-anthracotic pulmonary disorders from the pulmo...
background : due to rapid advances in modern technologies such as telecommunication technology, the world has witnessed an exponential growth in the use of digital handheld devices (e.g. smartphones and tablets). this drastic growth has resulted in increased global concerns about the safety of these devices. smartphones, tablets, laptops, and other digital screens emit high levels of short-wave...
background & aim: case-crossover studies are the case-control version of crossover studies. in these studies, cases and controls are the same subjects. the term crossover is applied for designs that all subjects pass through both treatment (exposure) and placebo (non-exposure) phases. in fact they are crossover of subjects between periods of exposure and non-exposure. this design ...
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 ...
Insomnia is one of the most common sleep disorders, characterized by difficulties in sleep initiation, sleep maintenance or early morning awakening. Sleepiness is also such issues that associated with driving accidents, work accidents, and reduces efficiency and numerous interpersonal difficulties. The aim of the present study is to evaluate the severity of insomnia and sleepiness workers who w...
Introduction: Skin disease caused by exposure to the chemicals is one of the major health-related problems in the workplaces. This study has done to prioritize the strategies for skin exposure with chemical in a painting company. Material and Method: In this analytical cross-sectional study 7 criteria and 8 selection control methods were initially chosen by surveying the existing records and t...
Background: Formaldehyde (FA) is a member of aldehyde family with a simplest organic molecule, used in various industries. Since there is simultaneous exposure of formaldehyde and noise for workers in most of the workplaces and that noise can reinforce the harmful effects of some chemical pollutants. This study aimed to investigate the effects of simultaneous formaldehyde and noise exposure on ...
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