the other hand, those of the pressure-expandable variety are typically formed of malleable wire or other plastically deformable material which will deform to a radially expanded configuration in response to the exertion of outwardly directed pressure thereagainst--as by inflation of a balloon or actuation of another pressure-exerting apparatus which has been positioned within the graft anchoring device.
In order to facilitate the transluminal, catheter based implantation of endoluminal grafts, it is typically desirable to minimize the diameter of the graft while in its radially compact configuration, thereby minimizing the required diameter of the delivery catheter used for delivery and implantation of the graft. In general, the smaller the diameter of the delivery catheter the smaller the size of the percutaneous puncture tract required for introduction of the catheter. Moreover,rival, Coke, which will air two different spots, including one starring the incredibly popular characters from The Simpsons? (See the best and worst Super Bowl commercials of 2009.)

To Pepsi, and to companies around the world, the days when mass-market media is the sole vehicle to reach an audience are officially over. Instead of pouring millions of dollars into a Super Bowl commercial, Pepsi has started a social-media campaign to promote its "Pepsi Refresh" initiative. Pepsi plans to give away $20 million in grant money to fund projects in six categories: health, arts and culture, food and shelter, the planet, neighborhoods and education. People can go to the Pepsi website refresheverything.com  which can also be accessed through Facebook and Twitter  to both submit ideas and vote on