background: exposure to organic solvents is common among workers. objective: to assess neurobehavioral effects of long-term exposure to organic solvents among rubber workers in tehran, iran. methods: across-sectional study was conducted on 223 employees of a rubber industry. the participants completed a data collection sheet on their occupational and medical history, and demographic characteris...

background: the natural history and etiology of malignant mesothelioma (mm) is already thoroughly described in the literature, but there is still debate on prognostic factors, and details of asbestos exposure and possible context with clinical and demographic data, have not been investigated comprehensively. objectives: description of patients with mm, focusing on exposure, occupation, survival...

background: trinitrotoluene (tnt) is one of the most well-known and oldest explosive agents. in the recent decade, bioenvironmental, biochemical, and biological effects of tnt exposure have been more in the spotlight. in this study, we aimed to evaluate spirometric parameters in workers of a tnt factory exposed to tnt and other related fumes and dusts compared with the unexposed controls. metho...

asbestos applications were limited during past two decades in developed nations due to its debilitating health problems, while in developing countries it’s various usages continues. the main goals of present study were evaluation of asbestos concentrations in ambient outdoor and indoor air and occupational exposure, as well as exposure effects on pulmonary function. sampling procedure was ca...

magnetic resonance imaging (mri) uses a constant magnetic field and radio waves, a non-invasive method for examining tissues, organs and the skeletal system. the advantages and disadvantages of mri is not fully understood. in the computerized tumor (ct) scan, as an invasive method, the x-rays of the body is used for tomography; which different x-ray attenuation coefficient in tissues as well as...

lead poisoning is a historic universal disease. acute or chronic lead exposure may cause reversible or even permanent damages in human beings. environmental lead exposure is a global health concern in children. occupational lead poisoning is still a health issue, particularly in developing countries. during the last decades, new methods and medications have been advocated for the prevention and...

welding is a process in which two or more metals are attached by the use of heat and, in some cases, pressure. direct exposure and inhalation of welding fumes causes acute and chronic side effects in humans. kidney damage is one of these important side effects. β2 microglobulin is an 11.8 kilodalton protein and levels increase in the case of some inflammatory and viral diseases, or kidney malfu...

background: chemicals are among risk factors that can affect women's reproductive system. this study is aimed to investigate the association of occupational exposure to a mixture of organic solvents with menstruation disturbances and hormonal changes among female workers. methods : female workers of a pharmaceutical company were divided into three groups of non-exposed, low-exposed and highly-e...

In community detection, datasets often suffer a sampling bias for which nodes would normally have high affinity appear to zero affinity. This happens example when two affine users of social network were not exposed one another. Community detection on this kind data suffers then from considering as affine. To solve problem, we explicitly model the (non-) exposure mechanism in Bayesian framework,...

1189 June 2015 T he existence of critical periods of development is an established concept. The vulnerability to potentially adverse effects from “exposure” to certain drugs and stresses at specific times during development is concerning. Recent effort has focused on the impact of exposure to anesthetics during critical periods of development and the detrimental effects on the nervous system.1 ...