نتایج جستجو برای: occupational classifications
تعداد نتایج: 77227 فیلتر نتایج به سال:
BACKGROUND Musculoskeletal disorders (MSDs) are commonly encountered in current occupational health practice and comprise up to 45% of the workload for occupational physicians (OPs). AIMS To compare the reported incidence of work-related (WR) MSDs by specialist OPs and specialist rheumatologists and to relate it to self-reported and general practitioners-reported WR MSDs. METHODS Analysis o...
The cause of sporadic amyotrophic lateral sclerosis (SALS) remains unknown. We attempted to find out if occupational exposure to toxicants plays a part in the pathogenesis of this disease. In an Australia-wide case-control study we compared the lifetime occupations of 611 SALS and 775 control individuals. Occupations were coded using country-specific as well as international classifications. Th...
This paper investigates influences upon the development of library classification systems in nineteenth-century Britain. Two case studies – Edward Edwards's ‘scheme for a town lib...
normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 introduction: some of the most frequently used webometric indicators for evaluating and ranking academic web sites are web impact factor, number of web pages and number of inlinks. the present study evaluated and ranked top iranian medical universities according to the webometric indicators. methods: the present cross-sect...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید