Abstract:
The present invention is directed to compounds of formula (I): wherein R1, R2 and R3 are independently selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, aryl and heteroaryl and X1 and X2 are independently a bond or an linker group of 1 to 6 atoms and may be optional substituted or oxidized, or a prodrug, a pharmaceutically acceptable salt or a pharmaceutically active metabolite thereof. The invention is also directed to methods of using the same for treating HIV infections, or AIDs or preventing viral replication.
Abstract:
The present invention relates to hydantoin derivatives having RNase H, polymerase and/or HIV reverse transcriptase modulatory, and particularly, inhibitory activity. Included in the invention are the hydantoin derivatives, compositions containing the derivatives, methods of synthesis of the derivatives, screening methods to identify the derivatives, and methods of treatment using the hydantoin derivatives, including the treatment of HIV, AIDS and retrovirus-associated cancer.
Abstract:
An electric circuit with speed control and diode separation for use with an electrically actuatable mechanism. An operator input provides a signal to a controller of the electric circuit. The controller causes a MOSFET relay to provide a voltage to the electrically actuatable mechanism. The relay is adapted to vary the voltage in response to pulse width modified signals from the controller.
Abstract:
A retaining component for securing an external structure or panel to a seat track within a mobile platform, such as an aircraft. The retaining component includes a pair of flexible flanges that are adapted to engage an external component or panel, in one example a seat track in a commercial aircraft cabin area. The retaining component also includes a base portion having a flexible portion with at least one locking tab protruding therefrom. One or more hook-shaped engaging tabs also protrude from the base portion. The engaging tabs and the locking tab enable the retaining component to be secured to a flange of a seat track having a plurality of spaced apart holes in a manner that does not require any external threaded or rivet style fastening elements, or the use of separate assembly tools. The retaining component, in one form, is a single piece, lightweight, integrally formed component that is ideally suited for use in mobile platforms such as commercial aircraft where assembly time and costs are important considerations in the manufacture of a commercial aircraft.
Abstract:
A sensing coil is provided for optically guiding counter-propagating light beams in a fiber optic gyroscope. The sensing coil comprises a plurality of layers of an optical fiber having a winding direction. The plurality of layers comprises inner layers, middle layers, and outer layers. The middle layers comprise first and second input ends configured to receive the counter-propagating light beams. At least one of the inner layers, middle layers, and outer layers is coupled with a different one of the inner layers, middle layers, and outer layers while maintaining the winding direction. A method is provided for winding an optical fiber, having first and second connecting ends, to form a sensing coil for a fiber optic gyroscope having a winding direction. The method comprises excluding first and second segments from a middle layer of the sensing coil to produce first and second inputs and third and fourth connecting ends respectively adjacent to the first and second inputs, and coupling each of the connecting ends with a different one of the connecting ends while maintaining the winding direction.