Abstract: The invention relates to a method and a device for heat treatment of prostatic tissue. The device comprises a treatment catheter with an expandable fluid reservoir and first heating means which is arranged within the treatment catheter and emits electromagnetic radiation for heating of the surrounding prostatic tissue. A second heating means is provided in thermal contact with the liquid in the fluid reservoir for heating of the liquid in the fluid reservoir as well as the tissue located in the immediate surrounding of the reservoir.

Abstract: A method for treating disorders responsive to DHFR inhibition is disclosed, wherein the disorders may include neoplastic diseases, rheumatoid arthritis, restenosis, multiple sclerosis, lupus, infections, and ectopic pregnancy. The inventive method comprises administering to a patient in need of treatment a therapeutically-effective amount of a composition comprising certain aromatic, primarily non-aliphatic, molecules that may be found in coal tar.

Abstract: A compound having the formula wherein R1 is COOR8 wherein R8 is alkyl having from 1 to 10 carbon atoms or aralkyl, the aralkyl having from one to four carbon atoms in the alkyl portion and a carbocyclic or heterocyclic group in the aryl portion; R2 is H, alkyl having from 1 to 10 carbon atoms, or COOR7 wherein R7 is alkyl having from 1 to 10 carbon atoms; R3 is H, alkyl having from 1 to 10 carbon atoms, or COOR8; R4 is H, alkyl having from 1 to 10 carbon atoms, or COOR8; R5 is H, alkyl having from 1 to 10 carbon atoms, aralkyl having from 1 to 4 carbon atoms in the alkyl portion, aryl having from 1 to 10 carbon atoms, acyl having from 1 to 10 carbon atoms, or COOCH3; and R6 is H or COOCH3; and thereof.

Abstract: In accordance with the invention an optical fiber communication system comprising a source of optical signals and an optical fiber transmission line is provided with one or more multiple-order distributed Raman effect amplifiers downstream of the source for amplifying the transmitted signals. As compared with a communication system using conventional first order Raman amplifiers, multiple-order amplifier systems can have reduced noise, longer fiber span lengths and reduced nonlinearities. In a preferred embodiment the system uses signal wavelengths in the range 1530-1570 nm, first order Raman pumping at 1430-1475 nm and second order pumping at about 1345 nm. Advantageously, the second order pump light is copropagating with the signal light and the first order pump is counterpropagating with the signal.

Abstract: In accordance with the invention, an optical pulse compressor comprises a pulse source, a section of nonlinear optical waveguide including a periodic structure, such as a Bragg grating, for providing positive dispersion and a section of linear optical waveguide including a negative dispersion component. The nonlinear waveguide should have a second order index N.sub.2 at least ten times the second order index N.sub.2 ' of the linear waveguide. The nonlinear waveguide is preferably chalcogenide fiber, with a Bragg grating photoinduced into the core. Because the grating is 4-5 orders of magnitude more dispersive than standard optical fiber, the length of the nonlinear waveguide section can be scaled down to a few centimeters with accompanying reduction of deleterious processes. Modeling suggests that compression factors of 5 with an initial 60 ps pulse are achievable with grating lengths of about 20 cm.

Abstract: A dielectric film useful for a capacitor in a DRAM device comprises an amorphous composition of Ti.sub.1-y M.sub.y O.sub.x, where y is approximately in the range 0.01 to 0.50, x is approximately 1.0 to 2.0, and M is a lanthanide rare earth element and advantageously, selected from the group of neodymium (Nd), terbium (Tb) and dysprosium (Dy). The concentration of dopants in the a-TiO.sub.2 film is preferably from 5 to 50 at. % and more preferably from 10 to 30 at. %. The inventive dielectric materials have a high dielectric constant of greater than 30 and figure of merit of greater than 9.0 .mu.C/cm.sup.2.

Abstract: Fat-like protein compositions for use in foods and cosmetics comprising a protein of gelatin and a water-soluble albumin, a carbohydrate, and a phospholipid wherein said gelatin, albumin, carbohydrate, and phospholipids are in the form of a water-insoluble complex coacervate, and processes for making the same. Preferred are compositions wherein some or all of the ingredients are optionally crosslinked.

Abstract: The present invention provides an improved two-stage pressure regulators for various compressed gases, and more particularly to pressure regulators used for gaseous fuels such as compressed or liquified natural gas. The pressure regulator of the present invention is a robust, compact, high flow, low droop, low pressure drop and low creep regulator which is suitable for both OEM and aftermarket use. It can be used by itself, or with an optional third stage to provide a three stage regulator such as the atmospheric (or zero pressure differential) types commonly used to regulate the fuel pressure for gaseous carburetion systems. It is particularly useful in mono-, bi-, and dual fuel engine applications.