Abstract: A description is given of the use of amino-substituted benzoic acid derivatives of the formula I ##STR1## in which R.sup.1 and R.sup.2 denote hydrogen, (cyclo)alkyl, unsubstituted or substituted phenyl or naphthyl, or R.sup.1 and R.sup.2 together denote a chain --(CH.sub.2).sub.m -- with m=3 to 6, or together denote a chain --(CH.dbd.CH).sub.n -- with n equal to 2 or 3; R.sup.3 denotes hydrogen, halogen or alkyl; R.sup.4 denotes hydrogen or NO.sub.2 ; R.sup.5 denotes hydrogen or a radical which can be eliminated under physiological conditions; for the preparation of a remedy for diarrhea.

Abstract: Fragments of Alpha-1 thymosin ranging from two to twelve peptides in length nd pharmaceutically acceptable salts thereof. These fragments possess immunostimulatory and immunoregulatory properties similar to the alpha thymosin molecule and are useful in the same fashion as in this molecule.

Abstract: The present invention provides a process for the currentless deposition of lectropositive metal layers on to appropriate less electropositive metals by contacting an object to be coated with a coating bath, wherein a coating bath is used which contains a metal complex obtained by reacting a monovalent electropositive metal halide with a base, which is capable of complex formation with the electropositive metal, and a hydrohalic acid.The present invention also provides a coating bath for the currentless deposition of electropositive metal layers on to less electropositive metals, wherein said bath contains an electropositive metal complex obtained by reacting a monovalent electropositive metal halide with a base which is capable of complex formation with the electropositive metal and a hydrohalic acid.

Abstract: A novel method of sintering Si.sub.3 N.sub.4 shaped bodies which method comprises grinding Si.sub.3 N.sub.4 with the use of a grinding material down to a surface area magnitude of 10.5 to 35 m.sup.2 /g and an average particle size from 0.2 to 0.005 .mu.m, shaping the powder obtained, and sintering the compact under inert gas or nitrogen at a temperature from 1700.degree. to 1900.degree. C.

Abstract: Boron carbide/transition metal boride molded articles produced by hot preng a mixture of from 25 to 75% by weight of boron carbide, from 14 to 40% by weight or boron, from 10 to 50% by weight of tungsten and/or titanium carbide, from 0 to 6% by weight of cobalt and from 0 to 8% by weight of silicon to convert the carbide into the corresponding boride.

Abstract: The present invention provides compounds of the general formula: ##STR1## wherein R.sub.1 is a hydroxyl group or an acyl radical of a straight-chained or branched, saturated or, when R.sub.2 is an acyl radical other than an acetyl radical and/or R.sub.4 is a hydrogen atom and/or R.sub.5 is a hydrogen atom or an alkoxy radical, unsaturated monocarboxylic acid containing up to 10 carbon atoms, R.sub.2 is a hydroxyl group or an acyl radical of a straight-chained or branched, saturated or, when R.sub.1 is an acyl radical and/or R.sub.4 is a hydroxyl group and/or R.sub.5 is a hydrogen atom or an alkoxy radical, unsaturated monocarboxylic acid containing up to 10 carbon atoms, R.sub.3 is an acetyl or methyl radical, R.sub.4 is a hydrogen atom, a hydroxyl group or an acetyl radical and R.sub.5 is a hydrogen atom, an alkoxy radical containing up to 6 carbon atoms (not only in the .alpha.- but also in the .beta.-position) or an additional bond to C22.

Abstract: The present invention provides a fine-grained ceramic formed body of 0.5 to mole % rare earth oxide and 0.5 to 7 mole % MgO-containing ZrO.sub.2, wherein the cubic granules thereof are coated with Mg-Al spinel particles.The present invention also provides a process for the production of such formed bodies, wherein a ZrO.sub.2 powder alloyed with rare earth oxide, which contains small amounts of Al.sub.2 O.sub.3, is pressed and sintered in the presence of MgO at a temperature of from 1400.degree. to 1600.degree. C. and optionally subsequently tempered at a temperature of from 1200.degree. to 1350.degree. C.

Abstract: A microwave plasma method/of depositing a coating of a prescribed material on the internal surface of a pipe by means of a reaction of a vapor phase providing a prescribed material in which:(a) an atmosphere at a pressure less than atmospheric pressure containing the vapor phase is introduced into the pipe,(b) microwave energy is beamed into the pipe which is propagated along the length of the inside of the pipe,(c) a magnetic field is generated in a localized area of the pipe in which electron cyclotron resonance occurs for the the frequency of the microwaves, and in which, pressure, field strength of the magnetic field and the power of the high-frequency field are selected that a low-pressure gas discharge results in the area of the magnetic field to trigger the reaction furnishing the prescribed material, and(d) in which the magnetic field and thus the plasma are transposed along the length of the pipe.

Abstract: A semiconductor device consisting of epitaxial material is provided with at least one monoatomic layer of doping atoms, i.e. with a layer which is just one atom thick. A particularly preferred device is a field effect transistor in which case the Dirac-delta doped layer 13 extends between the source and drain zones (18, 19) respectively. The field effect transistor can be constructed either with a homogeneous structure or with a hetero structure or with a superlattice structure. The field effect transistors described herein have a high transconductance and are capable of operating at high current densities.

Abstract: A method of treating viral diseases in a human subject is disclosed. The method involves applying effective amounts of the compound: ##STR1## wherein X is an azido group, a methoxy radical or a fluorine atom and B is thymine, uracil, guanine, cytosine, purine or hypoxanthine if X is methoxy or fluorine, and B is guanine, purine or hypoxanthine if X is azido or a pharmaceutically acceptable salt thereof. Also disclosed are compositions and compounds useful in the method.

Abstract: A rotary transmission device for a plurality of cables between to coaxial, utually restrictedly rotatable structures, especially for space satellites. One of said structures is formed with a cylindrical housing (9) while the other structure is formed with a hollow hub (8) coaxially extending through said housing (9). At least one support band (3) extends in the form of a spiral between the wall (10) of the housing (9) and the hollow hub (8) and is slidably supported at two plates (1, 2) forming the bottom and the cover of said housing (9). A plurality of individual electrical cables (6) are laid along the support band (3) in a slightly wavelike course, the cables (6) being fixed to the support band (3) at every second wave apex are retained at the other wave apices with radical and axial clearances with respect to the spiral.

Abstract: A position-sensitive radiation detector includes a substrate and an electrically conductive electrode system which is arranged on a surface of said substrate and the configuration and arrangement of which permits position determination of a charge carrier beam impinging thereon. The substrate and the electrode system each consist of a transparent material, for example glass, or a mixture of indium oxide and tin oxide. Disposed on the electrode system is a layer of luminescent material. The present radiation detector permits at the same both an electronic and an optical signal acquisition, the latter for example photographically, visually or by means of an optoelectronic device, such as a video camera, which picks up the light passing through the substrate. Due to the combined electronic and optical signal acquisition the radiation detector can be used in a very large intensity range.

Abstract: A laser with distributed feedback utilizes an active laser medium, especiy a dye solution contained in a cell, excited by a pump radiation beam that passes through an optical grating or like device, and an optical imaging system arranged between the optical device and the laser medium; the imaging system, in combination with the optical device, forms a striped pump radiation pattern in the laser medium. The optical imaging system contains a microscope lens in retro position, or another scale reducing or demagnifying lens system, and may optionally, include a variable-focus lens for altering the imaging scale and, therefore, the wavelength of the laser emission.

Abstract: A lock-in amplifier having an input terminal (E); a pair of signal procesg channels (16, 18) each having an input; and an output (20, 22); a pair of switching devices (S.sub.1, S.sub.2) coupled between the input terminal and the inputs of the signal processing channels; a signal combining circuit (24) having an output and connected between the outputs of the processing channels (16, 18); a switching control circuit (36, 38, 40, 42) having an input (SE) for a synchronizing signal, coupled to the pair of switching devices (S.sub.1, S.sub.2) and includes a pair of delay circuits (36, 40) connected between the synchronizing signal input (SE) and each of the associated switching devices (S.sub.1, S.sub.2). Each of said channels comprises a smoothing and storage network of preferably adjustable time constant.

Abstract: A compact double-focussing mass spectrometer comprises, in the order named long an ion beam path, an einzel lens for focussing ions entering through an entrance slit into an exit slit and for effecting angle focussing, further a magnetic deflection field and an electric sector field each having a deflection angle of 30 degrees and opposite directions of deflection and in combination effecting energy focussing. Since the deflection angles of the magnetic and electric fields are relatively small and have opposite directions, the net ion beam path is essentially straight, and therefore the mass spectrometer can be implemented by a compact structure.

Abstract: Compounds related to phospholipids and a method for their preparation are sclosed.

Abstract: Cytotoxically-effective medicaments containing hexadecylphosphocholine as active material.

Abstract: A constrast medium for ultrasonic examinations, in particular for echocardiography, based on a suspension of gas bubbles in a pharmacologically acceptable, aqueous liquid vehicle having a physiological electrolyte content, containing(A) a pharmacologically acceptable polypeptide and/or polysaccharide and/or a derivative thereof,(B) a pharmacologically acceptable vegetable oil and(C) a pharmacologically acceptable soluble iron(III) salt, and a process for its preparation. This contrast medium is able to penetrate the pulmonary capillaries and thus makes possible, after intravenous injection, inter alia echocardiographic examination of the left ventricle.

Abstract: A density measuring apparatus (densitometer) useful for rapid absolute determination of the density, the temperature dependence of density, partial volume and thermal expansivity of condensed matter, based on the hydrostatic method, employs an electronic balance enclosed in an airtight envelope which forms a weighing chamber and a measuring chamber. The balance comprises a balance beam and measuring and weighing hangdown assemblies attached to opposite ends of the beam. The balance beam and the weighing hangdown assembly are positioned in the weighing chamber. The measuring hangdown assembly extends from the weighing chamber into the measuring chamber and comprises a thin suspension wire and a sample support or a sinker which are positioned in a multi-jacket measuring vessel adapted to receive a buoyant or sample liquid. A vapor barrier is provided between the weighing and measuring chambers to prevent vapors of the buoyant or sample liquid from flowing into the weighing chamber.

Abstract: A process and a device for hydrodynamic sound pulse generation in a liquid, n particular for sound pulse generation at sea for marine geophysics measurements.