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There has been a recent trend towards using a raft of small diameter 3.5mm cortical screws for supporting depressed tibial plateau fractures (Schatzker type III). Our aim was to compare the biomechanical properties of a raft of 3.5mm cortical screws with that of 6.5mm cancellous screws in a synthetic bone model. Ten rigid polyurethane foam (sawbone) blocks, with a density simulating osteoporotic bone...
The fluorescein diacetate (FDA) antibacterial assay relies on the cleavage of fluorescein diacetate by metabolically active bacteria. The recent finding that microbiological media can lead to significant levels of cleavage has reduced the reliability of the assay. Using the nucleophilic scavengers N-ethylmaleimide and maleic anhydride, we have demonstrated that this abiotic cleavage is most likely...
Abstract. The Antarctic limpet, Nacella concinna, has the ability to escape predation by the predatory sea star, Neosmilaster georgianus. When the sea star comes into contact with the limpet, the limpet undergoes characteristic behaviors that include extension of its pallial tentacles, raising its shell in a mushroom-like fashion, rotation, and flight. These behaviors were not observed until the sea...
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