A increasing chorus of voices in the last few years has been telling us that the book is dead, and that hypertext and hypermedia will bring about fundamental changes in reading and writing. Also in prospect are radical changes in learning: the introduction of the computer will force teachers to rethink their practices, while students will be empowered to learn in new ways. Although this perspec...

BACKGROUND Successful vascular anastomosis is essential for the survival of transferred free tissue. Arterial anastomosis is typically uncomplicated because the lumen is easily maintained and the vessel walls have elasticity. Venous anastomosis, however, is more time consuming because the vessel walls are thin and extensible. This article describes, reviews, and compares 3 currently used venous...

INTRODUCTION Venous congestion is the main cause of failure in the distally based sural artery flap. Herein, we present our technique of phlebotomy to relieve flap congestion. Venous blood is intermittently drained via an exteriorized segment of the short saphenous vein until flap circulation normalizes. METHODS AND MATERIALS From 2000 to 2005, 34 distally based sural artery flaps were perfor...

To increase the efficiency of a natural gas engine, use Miller camshaft was analysed. avoid decline in low-end torque and also transient response, pressure wave supercharger (Comprex™) compared to conventional single-stage turbocharger. The analyses for this conceptual comparison were performed experimentally, data then used run simulations driving cycles light commercial vehicles. A 49% result...