نتایج جستجو برای: occupational heat exposure
تعداد نتایج: 546054 فیلتر نتایج به سال:
background: exposure to human blood and body fluids is a common risk for nurses. many factors can affect the prevalence and incidence of this occupational hazard. psychosocial factors at work may be a risk factor for the exposure. objective: to assess needle stick, sharp injury and mucus exposure to blood-borne pathogens among nurses in iran and to determine the association between these exposu...
background: panoramic imaging is one of the most common imaging methods in dentistry. regarding the side-effects of ionizing radiation, it is necessary to survey different aspects and details of panoramic imaging. in this study, we compared the absorbed x-ray dose around two panoramic x-ray units: pm 2002 cc proline (planmeca, helsinki, finland) and cranex tome (soredex, helsinki, finland). mat...
background & aims of the study: petrochemical industry is an important industry in the economic development of the country that causes employees have exposure with several kinds of contamination. the aim of this study was semi-quantitative assessment of the health risk of occupational exposure to chemical materials and investigation of spirometry indices between employees of petrochemical indus...
Background: In humans, as in most mammals, spermatogenesis is temperature dependent. Experimental studies in animals and humans have demonstrated the role of exogenous heat exposure in male infertility. Several occupational and environmental exposures and toxins have known or suspected deleterious actions to male reproductive function. The main objective of this study was to determine the frequ...
hazardous chemicals may enter the body by inhalation, ingestion, injection or dermal absorption. these exposure routes constitute the overall exposure burden on the body. most occupational exposure studies have focused on measurement of the concentration of air-borne contaminants and other possible routes of exposure are often overlooked. several studies have already highlighted the importance ...
radar transmitters emit high-power radiofrequency radiation by creation of a high-voltage and high-frequency alternating electrical current.health effects of occupational exposure to military radar were investigated. visual reaction time was recorded with a simple blind computer-assisted-visual reaction time test. to assess the short-term memory, modified wechsler memory scale test was performe...
normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: work-related musculoskeletal disorders (wmsds) are as one of general health problems throughout the world and they are the main reason for disabilities. the aim of this study was to investigate the prevalence of wmsds of isfahan’s teachers and the effect of eight weeks selected corrective exercises and ergonomi...
background: occupational lead poisoning is a health problem in iran. it has not previously been studied in traditional tile makers. objective: to determine the prevalence of lead poisoning and its complications in traditional tile workers in mashhad, northwest of iran. methods: we visited workers in two traditional tile factories and collected data by direct history taking and physical examinat...
background: ˝radioadaptive response˝ is well-documented phenomenon appeared in low dose ionizing radiation received in vitro and in vivo. occupational exposure has always been a great concern for radiation workers therefore this study was performed to study radioadaptive response in terms of residual dna double strand breaks as an endpoint in peripheral blood leukocytes of occupationally expose...
background: the aim of the study was to analyze the effective dose record of occupationally exposed radiation workers at bahawalpur institute of nuclear medicine and oncology department. materials and methods: annual effective doses of occupationally exposed workers were measured by film badge dosimetry by sending the dosimeters to radiation dosimetry laboratory (rdl), pakistan institute of nuc...
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