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Materials Handling and Storage
Published in W. David Yates, Safety Professional’s Reference and Study Guide, 2020
Pliers and tongs discussed in this section are the smaller handheld tongs versus the larger lifting tongs. Tongs are similar to pliers, but have specialized gripping ends that are used to keep the hands away from the point of operation. For example, the pliers or tongs may be used to lift manufactured parts, such as hot parts or to hold parts that are hammered or otherwise manipulated. These tools should have handles and grips designed to keep ergonomic stresses from the user. As with all hand tools, it is important that the user wears the proper PPE, such as gloves and safety glasses. Other PPE may be required depending on the type of operation being performed.
Health and safety
Published in Roger Timings, Fabrication and Welding Engineering, 2008
Normal workshop overalls are usually made from cotton/polyester mixtures that are not flame resistant materials. However, overalls worn when welding should be made from a flame resistant cloth and should be kept buttoned or zipped up to the neck so that particles of hot metal and slag cannot lodge inside them. Sleeves and trousers should not have cuffs which can trap globules of hot metal and hot slag. In addition, flame resistant head gear and a chrome leather apron should be worn together with leather gloves. Metal tongs should be used for holding or moving hot metal. Chrome leather gauntlet gloves and leather spats and a safety helmet should also be worn when welding overhead or on vertical surfaces. This full protective clothing should always be worn when flame cutting.
Effect of citrulline malate supplementation on muscle function and bioenergetics during short-term repeated bouts of fatiguing exercise
Published in Journal of Sports Sciences, 2022
Laura Meimoun, Émilie Pecchi, Christophe Vilmen, David Bendahan, Benoît Giannesini
This study utilised a randomized, double-blind placebo-controlled design. Animals were randomly distributed to one of the two groups: CM (Biocodex, Gentilly, France) supplemented group (n = 20) and vehicle group (n = 20). This process was conducted in a blind fashion at the receipt of the animals from the breeding centre by a person not involved in this study. In each group, the non-invasive MR investigation of the right gastrocnemius muscle function and bioenergetics was performed after the treatment in half of the animals (n = 10 per group). For the other half, after the treatment period (vehicle or CM), gastrocnemius muscles were quickly removed, freeze-clamped with liquid nitrogen-chilled metal tongs, and stored at −80°C for subsequent in vitro analytical measurements. Sample size was determined on the basis of previous works performed in our laboratory in order to evaluate the effect of CM ingestion upon skeletal muscle function in vivo in rat (Giannesini et al., 2009, 2011). Both CM and vehicle treatments were administrated by a person not involved in data collection and analysis. It consisted of seven administrations of CM (1 g/kg) or vehicle using an oesophageal cannula at 48 h, 44 h, 40 h, 24 h, 20 h, 16 h and 1 h before the MR experiment or the sacrifice. These dosage and timings were established based on prior studies reporting beneficial effect of oral CM supplementation on muscle function throughout a single exercise session in asthenic (Giannesini et al., 2009; Goubel et al., 1997; Verleye et al., 1995) and healthy (Giannesini et al., 2011) rat.