نتایج جستجو برای: materials handling
تعداد نتایج: 504302 فیلتر نتایج به سال:
The emergence of Mineral Trioxide Aggregate (MTA) as endodontic repair filling material has generated a lot of interest due to its superior sealing ability and biocompatibility. Although MTA possesses superior sealing ability to traditional endodontic repair filling materials, such as calcium hydroxide, but it has poor handling characteristics. A novel endodontic repair filling materials with s...
OBJECTIVES Because work-related injuries are common and yet the mechanisms through which various types of injuries relate to age, length of service and job remain unknown, this study assessed the role of age, length of service and job in work-related injury. METHODS Prospective study of all 164,814 permanently employed male workers at the French national railway company during 1998-2000, base...
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