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Mechanical behaviour of fibrous braided structures for ligament tissue reinforc...

Mechanical study of PLA-PCL fibers during in vitro degradation

Degradation and Viscoelastic Properties of PLA-PCL, PGA-PCL, PDO and PGA Fibres

Aliphatic polyesters, such as polylactic acid (PLA), polyglycolic acid (PGA), polycaprolactone (PCL), polydioxone (PDO) and others, have been commonly used in biodegradable products. Hydrolytic and/or enzymatic chain cleavage of these materials leads to α-hydroxyacids, which, in most cases, are ultimately assimilated in human body or in a composting environment. However, each of these has some shortcomings...

Ensino Aprendizagem do Conceito de Limite

As dificuldades relativas ao ensino e à aprendizagem do conceito de limite são há muito conhecidas. As tentativas de simplificações, por vezes abusivas, de conceitos tão delicados arriscam-se a gerar polémica como o provam textos relativamente recentes publicados no Boletim da SPM.

Phase contrast microscopy coupled to image analysis as a rapid method to monito...