The purpose of this study is to observe and analyze the potential hazards that can cause accidents in activity lifting building materials using Tower Crane on a construction project. method used research Hazard Identification, Risk Assessment Control (HIRARC). By method, it hoped reduce number occur, find out causes accidents, establish control measures. results indicate there are 11 risks acti...

Studies have demonstrated that conventional hearing protectors interfere with sound localization. This research examines possible benefits from advanced communications devices. Horizontal plane sound localization was compared in normal-hearing males with the ears unoccluded and fitted with Peltor H10A passive attenuation earmuffs, Racal Slimgard II communications muffs in active noise reduction...

an aftereffect following treadmill running was described, in which people would inadvertently advance when attempting to run in place on solid ground with their eyes closed. Although originally induced from treadmill running, the running-in-place after-effect is argued here to result from the absence of sensory information specifying advancement during running. In a series of experiments in whi...

Average sound levels and percentage of daily dose of noise exposure were measured in the practice rooms of a university school of music, with the primary objective of determining whether sound levels in student practice rooms were high enough to warrant concern for hearing conservation. A secondary objective was to determine whether any instrument group was at higher risk for music-induced hear...

OBJECTIVES This study investigated the actual situation of noise and low-frequency sounds in firework events and their impact on pyrotechnicians. METHODS Data on firework noise and low-frequency sounds were obtained at a point located approximately 100 m away from the launch site of a firework display held in "A" City in 2013. We obtained the data by continuously measuring and analyzing the e...

The incidence of collisions between motorcyclists and other vehicles may be significantly reduced by research that improves the acoustic awareness of cyclists, and thus heightens the ability of cyclists to respond to unexpected incursions from the surrounding traffic. We use our hearing as an early warning system, and hearing swiftly redirects our vision and attention. This shift in gaze is cri...

BACKGROUND Traditionally, children with tympanostomy ventilating tubes, or grommets, were advised that water should not enter their ears in order to prevent ear infections. This group of children has been considered somewhat handicapped regarding swimming. We conducted a prospective study to determine if there is a relation between suppurative otitis media and surface swimming in children with ...