Abstract: The invention relates to new angiotropins of leukocytes and inflamed tissue hich have the biological and physicochemical properties stated in the patent claims. The compounds selectively stimulate the directional growth of blood vessels and lead to a neovascularization of tissue. The invention also relates to a biotechnical process for preparing and isolating the angiotropins and to pharmaceutical compositions containing them.

Abstract: The new compound pGlu-Pro-Pro-Gly-Gly-Ser-Lys-Val-Ile-Leu-Phe is a neuropide which is of interest as a research substance and pharmaceutical composition. Its preparation is performed synthetically by conventional methods of peptide synthesis, or by extracting animal tissue with an organic solvent and purifying the extract by chromatography through ion exchangers and through slightly crosslinked molecular sieve columns, and by high-pressure liquid chromatography.

Abstract: The invention relates to SERUM-DERIVED "LEUKORECRUITIN", which is A PROTEIN MEDIATOR OF INFLAMMATION FROM MAMMALIAN SERUM specifically inducing positive leukocytosis reaction and leukocyte recruitment from the bone marrow into the blood of animals and humans without biological side-reactions. The process for the production and isolation of leukorecruitin is characterized in that mammalian serum is subjected to regulated and limited proteolysis by contact activation, the protein is then separated from other foreign constituents and proteins of serum in the form of a crude serum protein concentrate fraction, and/or the protein is separated from other serum-proteins by chromatography on hydroxyapatite. Leukorecruitin has very valuable pharmacological effects and can be used in compositions for specifically influencing the defense state of the animal or human body and for diagnostic purposes in hematological disorders.

Abstract: A ceramic formed body having high temperature change resistance and stren and being composed of a ceramic matrix with dispersed particles of ZrO.sub.2, HfO.sub.2, or mixture thereof, is formed of a powdered ceramic material which is a precursor to the matrix material of the ceramic matrix, mixed with a compound which can form ZrO.sub.2, HfO.sub.2 or mixture thereof upon reaction with the ceramic material, and thereafter densely sintered below the reaction temperature. The sintered body is then heat treated above the reaction temperature to convert the precursor ceramic material into the matrix material and form the ceramic body with in situ formation of the dispersed particles.

Abstract: A new crystalline modification of germanium is described, as well as a method of manufacturing it. This new crystalline germanium modification has an orthorhombic structure and graphite-like properties.

Abstract: The present invention provides compounds of the general formula:Li.sub.2-2x N.sub.0.5-x Hal.sub.0.5+xwherein Hal is bromine, chlorine, fluorine or iodine and x is 0 or a number f up to 0.2 but excluding Li.sub.9 N.sub.2 Cl.sub.3 and Li.sub.5 NI.sub.2.The present invention also provides solid ion conductor material, consisting of a compound of the general formula:Li.sub.2-2x N.sub.0.5-x Hal.sub.0.5+xwherein Hal is bromine, chlorine, fluorine or iodine and x is 0 or a number of up to 0.2Furthermore, the present invention provides processes for the production of these compounds and solid ion conductor materials, as well as galvanic cells comprising them.

Abstract: A method of preparing compounds having at least one olefinic double bond, ich method comprises irradiating the corresponding saturated halogenated compound in gaseous form, with pulsed coherent light or incoherent light, adjusting the wavelength of the irradiated light and the pressure and temperature conditions so that a captured cross-section of 10.sup.-15 to 10.sup.-25 cm.sup.2 per molecule results, to split off hydrogen halide from said corresponding saturated compound yielding said olefinic compound.

Abstract: In a mass spectrometer, stabilization control is effected by modulating the unidirectional ion acceleration voltage with a low-amplitude constant-frequency modulation signal, preferably at the frequency of an A.C. source used to energize the instrument, producing an A.C. modulation component in the ion collector output; that modulation component of the output is detected to develop an error signal indicative of the direction of deviation of the acceleration voltage from an optimum condition of maximized output current and the error signal is employed to adjust the acceleration voltage to stabilize operation at the optimum condition. A corresponding control can be effected by modulation of the magnetic field that deflects the ion stream to impinge on the collector.

Abstract: Bis-thymosine .alpha.-1 consisting of two desacetylthymosine .alpha.-1 un N-terminally linked by a bridge bond of 1 to 10 carbon atoms, especially an .alpha.,.omega.-diacyl residue with 2 to 10 carbon atoms. This new compound is made by converting a synthetic desacetylthymosine .alpha.-1 in which all functional groups of amino acids 1 through 28, except the N-terminal group, are blocked by protective groups conventional in peptide synthesis with a coupling compound of 1 to 10 carbon atoms and that reacts with NH.sub.2 groups, in a polar solvent, and then removing the protective groups.

Abstract: An electromagnetic diaphragm disk actuator is both easily driven and posiely held in its desired controllable relationship. The actuator includes a stator having a driving rim with a driving tooth system, a holding rim spaced axially away from the stator with a holding tooth system, a plurality of pairs of electromagnets in the stator and a rotor connected to a drive shaft having a magnetically attractable diaphragm with cooperating driving and holding tooth systems positioned around the circumferential edge and on opposite sides thereof lying between the stator and the holding rim. The diaphragm is positioned between the driving rim and holding rim such that the engagement points of the driving and holding tooth systems deform the diaphragm to the point that it develops an apex generally defined by the axis between the points of engagement of the holding tooth system and such axis is displaced 90.degree. relative to the axis formed by the engagement points of the driving tooth systems.

Abstract: The present invention provides a process for the production of solid ion ductor materials (electrolytes) based on lithium or sodium compounds which stand in thermodynamic equilibrium with their alkali metal and have a high decomposition voltage, wherein two or more binary lithium or sodium compounds with an anion which is formed from one or more elements of the group consisting of nitrogen, phosphorus, arsenic, oxygen, sulphur, selenium, tellurium, hydrogen, fluorine, chlorine, bromine and iodine and which stand in thermodynamic equilibrium with their alkali metal are reacted together in such amounts and for such a period of time that a radiographically phase-pure product is formed.The present invention also provides ion conductor materials based on lithium or sodium compounds, which have the general formula:A.sub.3u+2v+w X.sub.u Y.sub.v Z.sub.

Abstract: A semiconductor for the measurement of optical radiation dosage comprising a semiconductor body having a doped surface layer on a doped substrate, the surface layer having a conductivity appreciably higher than the substrate thereby to form at the transition a potential barrier with a space charge region whereat carrier pairs are produced with the incidence of optical radiation, where various parameters of the surface layer and the substrate are so selected that the conductivity due to stored photoconductivity varies according to a chosen characteristic law with change in optical radiation dosage, and electrodes applied to the surface layer are connected in a measuring circuit to measure the stored photoconductivity.

Abstract: New glycerol-3-phosphoric acid halogenoalkyl esters of the general formula I ##STR1## in which R denotes the radical R.sub.1 or an acyl radical --COR.sub.1, R.sub.1 denotes a straight-chain or branched, saturated or unsaturated alkyl group having 1 to 25 C atoms, R.sub.3 is a halogen atom, y is an integer from 2 to 12 and X.sup..sym. denotes one equivalent of a monovalent or divalent cation, as intermediate products for the preparation of phospholipids (glycerolphosphatides), a process for their preparation, and a process for subjecting them to further conversion, are described.

Abstract: A process for making factor for stimulating the rate of proliferation of liver cells comprising homogenizing animal Peyer's glands, adjusting pH to about 5.5, thermally denaturing the product and recovering the desired factor in the supernatant by centrifugation.

Abstract: A rotary head is provided with supply chambers near the center of rotation ommunicating with slot-like channels extending radially to a surrounding annular space. Substrates are set into holders, such as dovetail guides in the channel walls to expose surfaces to the liquid that flows by through the channels from the supply chambers when the head is set into rotation. The used liquid, after it reaches the annular space, flows down into a catch basin at the bottom of a surrounding casing, which casing also has an opening at the top for loading the supply chambers.

Abstract: In order to measure the rotation rate of a rotating light path by the Sag effect, a pair of phase modulated coherent light beams are passed in opposite directions along the light path. After the beams have emerged from respective ends of the light path, the intensity of one of them is detected as a measurement of the phase shift which occurs between the beams along the light path. The detected output is then passed through a synchronous rectifier to produce an error signal for a control loop for the system. In a preferred embodiment, the control loop is formed by a solenoid wound around a portion of an optical fiber located along said light path. By processing the current through the solenoid, a continuous update of a scale factor for the phase shift can be achieved.

Abstract: Peptides having the carboxyl terminated sequence of the pancreozymin-cholstokinin 25-33 modified such that the amino acid group 25 carries a strongly basic group, the amino acid group 28 exhibits a hydrophilic character similar to that of the hydroxyamino acids and the amino acid group 31 exhibits a strongly hydrophobic character similar to that of amino acids with aliphatic side chains, and in particular nonapeptides having the sequence H--X--Asp--Tyr(SO.sub.3 H)--Y--Gly--Trp--Z--Asp--Phe--NN.sub.2 wherein X is arginine, homoarginine, norarginine, N.sub..epsilon.,N.sub..epsilon. -dialkyllysine, N.sub..delta. or N.sub..delta. -dialkyl-ornithine, Y is threonine, serine or hydroxy-proline and Z is norleucine, leucine, norvaline or .alpha.-amino-butyric acid, possess pronounced pancreozymin activity and can be employed in pharmaceutical preparations for controlling the function of the gall bladder and for controlling the enzyme secretion of the pancreas.

Abstract: A laser device especially intended to generate ultrashort light pulses, wein the laser path is defined by an interferometer (I) providing substantially total reflection, a partial reflector (OM) for decoupling, and a stimulatable laser medium (D) between the interferometer and the partial reflector, the interferometer comprising a beam splitter (1, 2) through which the light pulses are transmitted substantially without loss to a total reflector (4, 5) which reflects the component beams back to the beam splitter, and a device (3) for varying the ratio of the path lengths travelled by the component beams between the beam splitter and the total reflector.

Abstract: Polypeptides of the sequence Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Ly s-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn, wherein at least one of the amino acids 10, 15, 21, 25 and/or 28 is present as amide or alkyl amide, and/or amino acid 1 bears an acyl group other than acetyl, having up to 6 carbon atoms, especially an acyl glycine residue. In addition, certain thymosin .alpha..sub.1 fragments I to VII are provided.

Abstract: An ion-selective electrode device for measuring oxygen concentrations comprises a noble metal reduction electrode connected to a voltage source; a reference electrode connected to said reduction electrode; an ion-selective carrier or ligand membrane disposed in front of the reduction electrode and containing a cation-selective ligand and being permeable to hydrogen ion; a closure membrane to seal the device against the outside atmosphere, the said closure membrane being permeable to oxygen and impermeable to water, and an electroyte containing the ligand cation of said ligand membrane, the said electrolyte being disposed between the said ligand membrane and said closure membrane.