Magnetic resonance (MR) imaging is finding an ever-growing role in the evaluation of a wide range of conditions in the abdomen. No longer confined to problem solving regarding abnormalities in solid organs, such as the liver and kidneys, MR imaging is increasingly being applied to the evaluation of the pancreatic and biliary ductal systems and even the bowel. Recent technical advances in hardwa...

“What distinguishes early on the worst architect from the most expert of bee, is that she built the cell in her head befor building it in the beehive”, Karl Marx Although drawn from its context, the reflection of K. Marx is completely suitable to illustrate what we mean by problem building or “problematization”. Problematize, it is therefore to represent a complex situation (Vander Borght, 2006...

Over the past decade, investigators in orthopaedic biomechanics at the Massachusetts General Hospital have contributed extensively to the development of the highly crosslinked ultra-high molecular weight polyethylenes (UHMWPEs). These highly crosslinked polyethylenes exhibit significant improvement in wear performance when compared with the conventional polyethylenes when studied in vitro in hi...