Abstract: A zero turning radius mower park brake system includes a park brake pawl on a transmission which engages a park brake to a pair of independently driven traction wheels. A park brake link may be pivotably mounted to the park brake pawl and connected to a left steering lever and a right steering lever. The park brake link may pivot while moving the park brake pawl forward to a park brake engaged position if only one of the steering levers is moved outward from a neutral traction drive position.

Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have displays that produce images. Positioners may be used to move the displays relative to the eye positions of a user's eyes. An adjustable optical system may include tunable lenses such as tunable cylindrical liquid crystal lenses. The displays may be viewed through the lenses when the user's eyes are at the eye positions. A sensor may be incorporated into the head-mounted display to measure refractive errors in the user's eyes. The sensor may include waveguides and volume holograms, and a camera for gathering light that has reflected from the retinas of the user's eyes. Viewing comfort may be enhanced by adjusting display positions relative to the eye positions and/or by adjusting lens settings based on the content being presented on the display and/or measured refractive errors.

Abstract: A system and method used to deliver a valve delivery system carrying a valve to a target valve annulus in the heart includes a cable percutaneously introduced into a vasculature of a patient and positioned to run from a femoral vein, transseptally through the heart, to a femoral artery. The valve delivery system device is passed over an end of the cable at the arterial side and is secured to the cable. The valve delivery system device is pushed in a distal direction while the venous end of the cable is pulled in the proximal direction, to advance the valve delivery system to the target valve annulus. A left ventricle redirector positionable on the cable from the venous end has a distal end actively steered during advancement and positioning of the valve delivery device, exerting forces that steer the distal nose of the valve delivery device as it moves towards the valve annulus.

Abstract: A portable, wearable, height adjustable equine leg rest that is removably supported on the lower leg of a person such as a farrier or veterinarian. A generally U-shaped padded hoof cradle receives and supports the lower leg of a horse for hoof work. A conforming elongate human leg support member is adapted for positioning along the lower leg of a person. A retaining device is provided for releasably retaining the leg support member on the person's leg. A height-adjustable extendable member provides a height adjustment for the hoof cradle. A ground contacting foot is affixed to the bottom end of the equine leg rest and transfers weight to the ground. The hoof cradle is mounted to the upper region of the leg rest, but extends to a side of the human leg support member such that the hoof cradle extends outwardly of the person's leg.

Abstract: The invention includes methods of making a fluorine doped soot particle. One method of the invention includes the steps of (1) delivering a silicon containing precursor to a first opening in a burner face; (2) delivering a source of oxygen to a second opening, wherein the second opening is spaced apart from the first opening such that the silicon precursor and oxygen source react to form a soot particle having a surface area of more than about 20 m2/g; and (3) delivering a fluorine precursor to a third opening, said third opening is spaced apart from the first opening. A second method of the invention includes the steps of (A) delivering a silicon containing precursor to a first opening in a burner face; (B) delivering a fluorine precursor to a second opening, wherein said second opening is spaced apart from said first opening; and (C) delivering a fuel to a third opening, said third opening is spaced apart from said first opening.

Abstract: The invention includes a method of incorporating fluorine into a preform that may be used to produce an optical article. A method that may be used to practice the invention includes a method of making an optical fiber preform. The method includes reacting a fluorine containing precursor in a flame of a combustion burner without forming a soot, thereby forming a fluorine doping atmosphere. A further method that may be practiced to practice the invention includes the step reacting at least a fluorine containing precursor in a flame of a combustion burner, wherein the precursors reacted in the flame are substantially devoid of the element of silicon, thereby forming a fluorine containing atmosphere for the doping of a soot preform.

Abstract: Methods are provided for treating multidrug resistance in refractory tumor cells comprising administering (1) a P-glycoprotein inhibitor in conjunction with (2) an antineoplastic agent.

Abstract: Methods are provided for treating multidrug resistance in refractory tumor cells comprising administering (1) a P-glycoprotein inhibitor in conjunction with (2) an antineoplastic agent.

Abstract: Methods are provided for treating multidrug resistance in refractory tumor cells comprising administering (1) a P-glycoprotein inhibitor in conjunction with (2) an antineoplastic agent.

Abstract: The invention includes methods of making a fluorine doped soot particle. One method of the invention includes the steps of (1) delivering a silicon containing precursor to a first opening in a burner face; (2) delivering a source of oxygen to a second opening, wherein the second opening is spaced apart from the first opening such that the silicon precursor and oxygen source react to form a soot particle having a surface area of more than about 20 m2/g; and (3) delivering a fluorine precursor to a third opening, said third opening is spaced apart from the first opening. A second method of the invention includes the steps of (A) delivering a silicon containing precursor to a first opening in a burner face; (B) delivering a fluorine precursor to a second opening, wherein said second opening is spaced apart from said first opening; and (C) delivering a fuel to a third opening, said third opening is spaced apart from said first opening.

Abstract: A method of treating and/or preventing allergic and inflammatory conditions of the skin or airway passages in a human in need of such treating and/or preventing which comprises administering to said human an effective amount of a nonsedating antihistamine for such treating and/or preventing while avoiding the side effects associated with other nonsedating antihistamines that bind to the P-glycoprotein pump and/or the organic anion transport polypeptide pump is disclosed.

Abstract: The invention includes a method of incorporating fluorine into a preform that may be used to produce an optical article. A method that may be used to practice the invention includes a method of making an optical fiber preform. The method includes reacting a fluorine containing precursor in a flame of a combustion burner without forming a soot, thereby forming a fluorine doping atmosphere. A further method that may be practiced to practice the invention includes the step reacting at least a fluorine containing precursor in a flame of a combustion burner, wherein the precursors reacted in the flame are substantially devoid of the element of silicon, thereby forming a fluorine containing atmosphere for the doping of a soot preform.

Abstract: An implement mounting assembly for attachment to a horizontal bar of a vehicle including a rigid mounting bracket, the mounting bracket having a U-shaped cross-section, the mounting bracket having a first generally rectangular front face and a second generally rectangular rear face, both of the faces having holes therein for receipt of bolts for connecting the bracket to a weight bar of a vehicle, and a hollow rigid receiver rigidly connected to the bracket, the receiver preferably being generally rectangular in cross-section and being oriented vertically upward when the bracket is connected to the weight bar; the rear face of the bracket preferably having a generally rectangular slot therein for placement over a supporting member which may be connected to the weight bar. Preferably the receiver has a collar located around the outside of the upper end thereof for providing additional strength to the upper end of the receiver.