Runners training for a marathon can get a stress fracture if they. escalate their training too quickly. Stress fractures occur when too much weight or stress is put on a weakened bone. It's often the result of an imbalance in bone health caused by actions that outpace the body's natural bone rebuilding process. See Stress Fracture Risk Factors.
(Intermediate Distribution Frame) A wiring rack located between the MDF (main distribution frame) and the intended end user devices (telephones, routers, PCs, etc.). Cables run from the outside world to the MDF and then to the IDFs. See MDF and wiring rack.
MDF is an extremely common material used in furniture. However, a lot of shoppers who are confronted with the term have one of two reactions, both negative. They may not know what this material actually is at all. Or if they do, they may also write it off as substandard. I'll break down for you what MDF is and the positives and negatives of furniture made from it. MDF stands for Medium Density Fibreboard. Fibreboard, in all its densities, is made from wood fibres.