Abstract: Energy is transmitted to a body lumen or passageway in the form of pulsed electric fields (PEFs) and in a manner which provides focal therapy. In some embodiments, PEFs are delivered through independent electrically active electrodes of an energy delivery body, typically in a monopolar fashion. Such delivery concentrates the electrical energy over a smaller surface area, resulting in stronger effects than delivery through an electrode extending circumferentially around the lumen or passageway. It also forces the electrical energy to be delivered in a staged regional approach, mitigating the effect of preferential current pathways through the surrounding tissue. Focal delivery of PEFs can provide increased tissue lethality by employing precise timing and sequencing of energy delivery to the electrodes.

Abstract: A surf ski system to enable a user to surf waves. This system includes a pair of surf skis, each surf ski being in the form of a floatation device including a floating hull, fore and aft ends, longitudinal axis connecting the fore and aft ends and a transverse axis perpendicular to the longitudinal axis. A pair of flexible connecting straps are provided connecting the pair of surf skis, each surf ski having a foot well and toe straps for receiving and partially restraining the feet of a user. One of the flexible connecting straps is located fore of the foot wells and one of the flexible connecting straps being aft of the foot wells. Each of the floatation devices has an upper surface and a lower surface and side walls for facilitating a user's ability to plane on water and a skeg extending from each lower surface, the side walls and lower surface meeting at an edge forming a hard chine there between.

Abstract: A surf ski system to enable a user to surf waves. This system includes a pair of surf skis, each surf ski being in the form of a floatation device including a floating hull, fore and aft ends, longitudinal axis connecting the fore and aft ends and a transverse axis perpendicular to the longitudinal axis. A pair of flexible connecting straps are provided connecting the pair of surf skis, each surf ski having a foot well and toe straps for receiving and partially restraining the feet of a user. One of the flexible connecting straps is located fore of the foot wells and one of the flexible connecting straps being aft of the foot wells. Each of the floatation devices has an upper surface and a lower surface and side walls for facilitating a user's ability to plane on water and a skeg extending from each lower surface, the side walls and lower surface meeting at an edge forming a hard chine there between.

Abstract: In accordance with at least some embodiments of the invention, a system comprises a plurality of computers coupled together and to an array of redundant storage devices that is accessible to the plurality of computers. Each of the plurality of computers comprises a local memory that stores at least one bitmap. The least one bitmap logs regions of the redundant array that have been modified.