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In 2004, management at Unimin’s Gleason, Tennessee, operation began implementing ergonomic interventions specifically targeted to reduce the risk of musculoskeletal injuries (MSIs). Together with corporate and site management, Unimin identified worksite hazards and began to modify work practices and equipment. Some interventions were relatively simple and were implemented immediately. Others, s...

The phenomenon of diminishing returns for additional search effort has been observed by several researchers. We study experimentally additional factors which influence the behaviour of diminishing returns that manifest themselves in go-deep experiments. The results obtained on a large set of more than 40,000 positions from chess grandmaster games using the programs CRAFTY, RYBKA, and SHREDDER s...

Climate change may affect the chemical composition of riparian leaf litter and, aquatic organisms and, consequently, leaf breakdown. We evaluated the effects of different scenarios combining increased temperature and carbon dioxide (CO2) on leaf detritus of Hevea spruceana (Benth) Müll. and decomposers (insect shredders and microorganisms). We hypothesized that simulated climate change (warming...