نتایج جستجو برای: welder exposure
تعداد نتایج: 307463 فیلتر نتایج به سال:
Research of natural environments often requires extensive field studies beyond the capacity of a single individual. In CONE Welder, we explore harnessing the power of human computation to aid ongoing research on avian activity and possible links to climate changes. Our approach utilizes a singly deployed pan-tilt-zoom web camera to gather observational data. The camera supports multiple operato...
One hundred twenty-three of 300 blood samples (41%) taken from Rio Grande wild turkeys (Meleagris gallopavo intermedia) from three locations in southern Texas (Welder Wildlife Refuge, Chaparrosa Ranch, and Campo Alegre Ranch) and subinoculated into domestic broad-breasted white turkey poults were positive for a Plasmodium (Novyella) sp. Analysis of blood films from 350 turkeys revealed Haemopro...
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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