Functional performance of a bi-layered chitosan-nano-hydroxyapatite osteochondral scaffold: a pre-clinical in vitro tribological study

Osteochondral grafts are used for repair of focal Health osteochondral lesions.Autologous grafts are the gold standard treatment; however, limited graft availability and donor site morbidity restrict use.Therefore, there is a clinical need for different graft sources/materials which replicate natural cartilage function.Chitosan has been proposed fo

read more




Metonymy Basted on the Prespective of Rhetoric

Metonymy is the most important notion in rhetoric and exquisite and even, as seen by some scholars the whole of it.In rhetoric and exquisite, one part of metonymy, individual metonymy, falls into rhetoric and the other part, compound metonymy, falls into requisite.Individual metonymy is mainly semantic and rarely imaginative.On the other hand, comp

read more