Abstract: A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein may include a radio frequency (RF) antenna configured to be positioned within the wellbore, an RF source, a cooling fluid source, and a transmission line coupled between the RF antenna and the RF source. A plurality of ring-shaped choke cores may surround the transmission line, and a sleeve may surround the ring-shaped choke cores and define a cooling fluid path for the ring-shaped choke cores and in fluid communication with the cooling fluid source.

Abstract: A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein may include a radio frequency (RF) antenna configured to be positioned within the wellbore, an RF source, a cooling fluid source, and a transmission line coupled between the RF antenna and the RF source. A plurality of ring-shaped choke cores may surround the transmission line, and a sleeve may surround the ring-shaped choke cores and define a cooling fluid path for the ring-shaped choke cores and in fluid communication with the cooling fluid source.

Abstract: An Adjustable Trolling Device, or dodger, consisting of a flat primary body and configured to be removably attached at one or more points along its edge to a primary fishing line, and at other points on its edge, at least some of which may be substantially opposite to the point where it is affixed to the primary fishing line, to trailing fishing bait, or lures. The device has an attached mounting surface, rotatable through 360°, or a specified range, projecting one or more guiding fins, substantially perpendicular to the rotatable mounting surface. The mounting surface, by its nature, may be rotated to place the guiding fins at alternate desired angles from the leading fishing line, so that movement of the dodger through the water may produce a variety of rotation or roll characteristics of the dodger and, correspondingly, the trailing bait or lures.

Abstract: The invention provides compounds which are useful as inhibitors of metalloproteases, and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the present invention relates to a compound having a structure according to Formula (I) ##STR1## as described in the claims, or an optical isomer, diastereomer or enantiomer thereof, or a pharmaceutically-acceptable salt, or biohydrolyzable alkoxyamide, ester, acyloxyamide, or imide thereof. Also disclosed are compounds, pharmaceutical compositions and methods of treating diseases characterized by metalloprotease activity using these compounds or the pharmaceutical compositions containing them.