Abstract: Apparatus and method for laser surgery in which laser energy, pulsed or continuous, is focussed to a focus spot of ten to thirty microns which is located within tissue, or the like to cause highly localized heating. The pulsed radiation is in the TEM(oo) mode, has a wavelength of approximately 1064 nanometer, the pulses being not in excess of 100 nanoseconds and the pulse rate being approximately 2000 per second. Where the laser beam is continuous or pulsed, it has a wavelength of approximately 1400 to 1800 nanometer, or in photoablative modes, having a wavelength of 190 to about 300 nanometers. The focus spot may be caused to move relative to the axis of a handpiece; and to liquid may flow across the exposure site to remove debris.

Abstract: In a row crop harvester a rotor 11 has rows of crop engaging elements 15 extending transversely across the direction of forward travel of the machine, the elements being aligned with the rows to be harvested. Each element has inwardly coverging side edges for gathering the crop of a row and for detaching required crop parts which are impelled in a high-speed stream upwardly and rearwardly over the rotor beneath a hood 18. At the junction of each inwardly coverging pair of edges a space 21 is provided for stripping crop and releasing stripped stems. Preferably the space 21 is a relief space having re-entrant edges 20 for stripping forwardly facing parts of the crop.

Abstract: The invention relates to matching asymmetrical discontinuities in transmission lines to give low reflection coefficients (less than five percent) over a wide frequency band (corresponding to at least an octave in wavelength). A group of asymmetrical discontinuities, such as impedance steps in a waveguide, are matched by considering a reference plane whose position varies with frequency at which the reflection coefficient for waves transmitted in one direction is equal to that for waves transmitted in the opposite direction. Matching elements are then provided which have a reflection coefficient at the reference plane which is equal and opposite to the reflection coefficient of the discontinuities. Matching is less difficult if the distance between the steps is less than a quarter of a guide wavelength at all frequencies in the wide band mentioned above and such an arrangement is a "reduced quarter wave transformer".

Abstract: A superconducting threshold logic circuit comprises current switching circuits each having a Josephson device. Bias currents of the switching circuits are varied independently to change weights for input signals. A sum of the weighted input signals are inputted to another current switching circuit having a Josephson device in order to compare the sum with a threshold.

Abstract: The present invention is concerned with a monoclonal antibody capable of preferentially recognizing arteriosclerotic lesions and prepared from a hybridoma obtained by fusing myeloma cells and cells capable of producing antibodies against arteriosclerotic lesions, such as spleen cells, peripheral lymphocyte of thymus and peripheral vascular cells, the antibody can be to use as an agent for detecting the presence of arteriosclerotic lesions and for treating arteriosclerosis.

Abstract: A source of atomic or molecular particles includes a source of ionized particles (1), an extraction electrode (2) and an einzel lens (3) to focus a beam of particles. A Wien filter (4) selects particles in said beam having a predetermined velocity and a charge exchange cell (7) neutralizes the ionized particles prior to the extraction of non-ionized particles from the beam.

Abstract: A nonlinear optical material comprising a nitroaniline derivative represented by the following chemical formula:A--CX.sub.2 --Rwherein A represents ##STR1## (Y represents at least one group selected from the group consisting of hydrogen, alkyl groups, deuterated alkyl groups and electron donor groups and Z represents hydrogen, deuterium, a methyl group or a deuterated methyl group), X represents hydrogen or deuterium, and R represents an alkoxy group, a deuterated alkoxy group or the same group as A.

Abstract: Delayed release compositions comprising an active compound and glassy amylose. A variety of different types of active compound may be employed in the compositions. The compositions are particularly adapted for achieving the selective release of medicaments into the colon.

Abstract: An electrorheological fluid e.g. for selectively coupling clutch members consists of silicone oil containing 30 volume % of dispersed polyaniline. The polyaniline is acidically oxidised aniline subsequently treated with base.

Abstract: A major problem in automatic signature verification is the rejection of true signatures. One way of capturing a signature is to use a special pen 10 to write on an area 13 having horizontal lines, the pen being constructed to pass a signal to a computer 11 indicating whether the pen tip is in contact with the area 13 and when the lines in the area 13 are crossed. Signals characteristic of signatures derived in this way are analyzed and stored. To enable verification to be carried out a number of authentic signatures are analyzed and a number of measures such as means and standard deviations of signature features are determined and stored. When a trial signature is to be verified, the same features of the trial signature are measured and the results are compared with the stored measures. It has been discovered that many false rejections of true signatures are due to variations of certain types such as hesitations which occur when the pen tip is off the writing area between inked segments of the signature.

Abstract: This invention relates to several thromboxane A.sub.2 inhibiting 7-[3-.alpha.-[1-[[(phenylamino)-thioxomethyl]hydrazono]ethyl]-bicyclo[2.2. 1]-heptenoic acids, pharmaceutical compositions employing them and methods of their use.

Abstract: Indole diterpene compounds named "radarin" have been isolated from the sclerotia of the fungus Aspergillus sulphureus. The radarins are effective for controlling Lepidopteran insects, and have the structures: ##STR1## wherein the compound formed when R is a hydroxyl group is designated radarin A and the compound formed when R is a hydrogen atom is designated radarin C; and ##STR2## wherein the compound formed when R is a hydrogen atom is designated radarin D and the compound formed when R is a hydroxyl group is designated radarin B.

Abstract: An electro-rheological fluid which comprises a solid particulate substance contained in a hydrophobic vehicle which is liquid at atmospheric pressure at least at temperatures below 50.degree. C. and which comprises a compound of the formula:(X).sub.n --Ar[Q--Z].sub.pwherein:Ar represents an aromatic nucleus;Q represents an oxygen or a sulphur atom, or a group of the formula CY.sub.1 Y.sub.2, SO, SO.sub.2, SiF.sub.2, --OSi(Y.sub.1 Y.sub.2)O-- in which Y.sub.1 and Y.sub.

Abstract: A process for the treatment of a continuous or perturbated stream of liquid material, which process consists essentially of passing the said stream of liquid material through a plasma arc coupling zone in which at least two plasma arcs are coupled at the surface of the liquid stream in order to raise both the bulk temperature of the stream and the temperature of the outer surface of the stream of material, thereby to effect a treatment of the stream selected from thermal, chemical, and a mixture of thermal and chemical.

Abstract: Compounds in which two or more rings, being a 3-hydroxpypyrid-2-one, 3-hydroxypyrid-4-one or 1-hydroxpyrid-2-one, are linked are of value in the treatment of patients having a toxic concentration of a metal, particularly iron, in the body while the iron complexes of such compounds are of value in the treatment of iron deficiency anaemia.

Abstract: The degree of rigor in a bird or animal carcass is measured. The carcass is carried on a carrier which runs along a rail and over a slight step or drop, which subjects the carcass to a mechanical shock. A sensor monitors the variation with time of the force exerted by the carcass on the support means which arrests its fall. Circuitry analyzes the response to determine the degree of rigor. The carcass is then subjected to appropriate treatment, e.g., by its further processing being delayed to allow rigor to develop further. This can be done by providing a switch in the rail to route the carcass along a short path or a long path. The particular feature of the response which is monitored by the circuitry may, for example, be the time of fall, the amplitude of oscillation after the carcass has been arrested by the support means, the frequency of that oscillation, the rate at which that oscillation is damped, or some combination of those features.

Abstract: A method of preventing controlling or reducing adiposity in which an animal or human being is treated with an effective amount of an antibody to an adipocyte present respectively in said animal or human being.

Abstract: A compound for treating a patient having a solid tumor in which it is known or suspected that hypoxic cells are present, which is a compound of formula (A): ##STR1## wherein X represents a nitro-substituted aromatic or hetero-aromatic group with a one-electron reduction potential at pH 7 of from -250 to -500 mV; each of R'.sub.1 to R'.sub.5 independently represents hydrogen or an alkyl, hydroxyalkyl, aryl, aralkyl or alkaryl group; m is 0 or 1; n is 1 or 2; and Z' represents a leaving group which has the potential for expulsion via an intramolecular cyclization reaction; or a physiologically acceptable acid addition salt thereof.

Abstract: A temperature history indicator for a boiler tube or other thing can take the form of a clip fixed around the tube or thing. The indicator is made of a ferrite-containing duplex stainless steel non-structural piece of alloy having approximately 63 weight % of iron, 23-27% chromium, 5-11% nickel, and the balance comprising other components no one of which exceeds 2.0%. Preferably, the balance of the alloy includes any one or more of 0.005-0.009% carbon, 0.3-0.8% silicon, 1.0-2.0% manganese, 0.002-0.006% phosphorous, 0.003-0.007% sulphur, 0-0.002% molybdenum, and 0.006% phosphorous, 0.003-0.007% sulphur, 0-0.02% molybdenum, and 0-0.02% copper. The thing is associated beforehand with the alloy in such a way as to irreversibly alter its magnetic properties and after exposure to temperature, the time and/or temperature are deduced by the loss in magnetic permeability.