Abstract: A method for producing a printed circuit board having at least one embedded electronic component, in which a support layer and a positioning layer having a recess somewhat larger than the corresponding base area of the printed circuit board module are provide, the positioning layer is placed on the support layer and the printed circuit board module inserted into the recess in the positioning layer. The printed circuit board module is positioned without soldering or gluing, and at least one electrically insulating layer placed on the printed circuit board module and the positioning layer surrounding the printed circuit board module. An electrically conductive layer is placed on the at least one electrically insulating layer covering the printed circuit board module, and the layer sequence is pressed. The bores in the pressed layer sequence are metallized.

Abstract: A process for producing an aerosol from a pulverulent substance, particularly for inhalation. In a turbulent agitating or whirling chamber, firstly a vacuum is produced, then gas is allowed to flow into the agitating chamber in such a way that the pulverulent substance contained therein is whirled up and an aerosol is produced, and immediately thereafter aerosol is discharged from the aerosol-containing agitating chamber.

Abstract: In oxygen therapy, the patient is provided a mixture of air and oxygen. In the process, the oxygen is led from an oxygen supply container or an oxygen concentrator through a tube to the patient and made available for inhalation. The distribution system includes a whirler with openings directed toward the patient's mouth and nose. The oxygen flow is twisted into a spiral shape inside the whirler before it exits from the openings.

Abstract: Synthetic resin composite profile, in particular wing spar for aircraft construction, comprising at least two flanges (1) provided with adhesive bonding flanges and at least one web (2) interconnecting the flanges (1) and inserted into the adhesive bonded flanges, the flanges (1) being constructed of resin impregnated rovings and the web (2) of resin impregnated woven or non-woven fabrics and the flanges (1) and the web (2) being adhesively interconnected. The flanges (1) are pultruded, the web (2) being inserted into the adhesive bonding flanges of both flanges (1) and fixed therein by means of a thixotropic adhesive (4). This manner of construction ensures that the full flange adhesive bonding width is retained even if the component height should change.

Abstract: An inhaling device for treating the lungs and respiratory tracts of humans or animals has a pressurized gas source, an atomizer connected to the gas source in a pressure conveying manner, a mouthpiece connected to the atomizer, and a spent gas flue. A valve for periodically interrupting the flow of exhaled air is provided in the region of the spent gas flue. The valve is activated by a control unit.

Abstract: O-substituted hydroxylamines (I)H.sub.2 N--O--CH.sub.2 --R(I)where R is H or an organic radical, and their salts are prepared by reacting a cyclic imidoether II of a 1,4- or 1,5-dicarboxylic acid, the said imidoether containing an ether group --O--CH.sub.2 --R, with a basic compound by a method in which a primary aliphatic aminoalcohol III is used as the basic compound and the compound I is, if required, converted to its salts.

Abstract: Alkyl tert.-alkyl ethers can be cleaved into the underlying alkanols and tert.-olefins in the presence of strongly acidic substances in a column apparatus, the strongly acidic substance being made available at the foot of the column. A particularly advantageous process design results when a water stream is fed below the top column tray in countercurrent to the tert.-olefin flowing upwards and is taken off again from the column above the bottom circulation; in the case of using an insoluble, strongly acidic substance, the latter is located in a catalyst bed at the foot of the column, and the alkyl tert.-alkyl ether is preferably fed in between the catalyst bed and the bottom circulation evaporator.

Abstract: Gum-free fuel components containing alkyl tert.-alkyl ethers have been found which can be prepared by reacting a crude hydrocarbon mixture containing gum-forming constituents and containing one or more tert.-olefins, simultaneously with alkanols and H.sub.2 on a certain exchanger in the H.sup.+ form containing one or more metals of sub-group VI, VII or VIII of the periodic table of the element in element form, in the liquid phase at 30.degree. to 140.degree. C.

Abstract: An optical recording medium contains tetraazaporphyrins of the formula ##STR1## where L.sup.1, L.sup.2, L.sup.3 and L.sup.4 are each independently of the others the radical of a bicyclic aromatic heterocycle containing 1 to 3 identical or different heteroatoms selected from the group consisting of N, O and S, which may be substituted, andR.sup.1 and R.sup.2 have defined meanings.

Abstract: Alkenes having a terminal double bond can be isomerized to give alkenes having an internal double bond if alkenes having a terminal double bond or hydrocarbon feedstock having a content of alkenes of this type having a terminal double bond are subjected to treatment, in the presence of hydrogen, over a macroporous or gel-like cation exchanger in the H.sup.+ form which contains 0.001 to 10 g of one or more metals of the VIth and/or VIIth and/or VIIIth sub-group of the periodic system of the elements in elementary form per liter of dry cation exchanger and which has a degree of crosslinking of 2 to 65% and a specific surface area of 5 to 750 m.sup.2 /g of dry exchange resin. The treatment is carried out in the liquid phase at a temperature from 0.degree. to 120.degree. C.

Abstract: A process for the preparation of 8-bromomethyl-3-methylquinoline compounds of the formula I ##STR1## where one or both substituents X are chlorine and, where relevant, the other substituent X is hydrogen, by bromination of the corresponding 8-methylquinoline compound in the presence of a 2-phase mixture of a solvent stable to bromination and of, preferably, buffered water.

Abstract: The development of crops is influenced by means of one or more 7-chloroquinoline-8-carboxylic acids of the general formula ##STR1## where R is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl.

Abstract: A process for the preparation of 8-bromomethyl-3-methylquinoline compounds of the formula I ##STR1## where one of both substituents X are chlorine and, where relevant, the other substituent X is hydrogen, by bromination of the corresponding 8-methylquinoline compound in the presence of a 2-phase mixture of a solvent stable to bromination and of, preferably, buffered water.

Abstract: Quinoline-8-carboxylic acid azolides of the formula ##STR1## where A, X and R have the meanings given in the disclosure, and their use as herbicides.

Abstract: A cannula as part of a biopsy instrument set is provided, which has a mandrin guided in the cannula and a seal arranged in the interior of cannula for ease of handling to ensure that a clearly defined tissue or tissue fluid quantity is removed from the interior of a body.

Abstract: Oxime esters of substituted quinoline-8-carboxylic acids of the formula ##STR1## where X is hydrogen, C.sub.1 -C.sub.4 -alkyl or halogen, Z is hydrogen or methyl, R.sup.1 is C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxymethyl, C.sub.1 -C.sub.4 -alkoxyethyl, C.sub.1 -C.sub.4 -alkylthiomethyl, C.sub.1 -C.sub.4 -alkylthioethyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.3 -C.sub.6 -alkenyl or C.sub.5 -C.sub.8 -cycloalkyl, each of which is unsubstituted or bears up to 3 methyl substituents, hydrogen, cyano, acetyl, benzoyl, unsubstituted benzyl or phenyl, or benzyl or phenyl bearing up to 3 substitutents selected from the group consisting of halogen, cyano, trifluoromethyl, C.sub.1 -C.sub.4 -haloalkyloxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkyl, hydroxy, dimethylamino or acetamino, R.sup.2 is hydrogen if R.sup.1 is not hydrogen, R.sup.2 further denotes C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxymethyl, chloromethyl, azolylmethyl, 1,1-dimethoxymethyl, cyano, C.sub.

Abstract: Fluoroalkyl-substituted quinoline derivatives of the formula ##STR1## where R.sup.1 is chlorine, fluorine, hydroxyl, O.sup..crclbar. Met.sup..sym., C.sub.1 -C.sub.4 -alkoxy or a radical of the formula ##STR2## R.sup.2 and R.sup.3 independently of one another are each hydrogen, C.sub.1 -C.sub.3 -alkyl or C.sub.1 -C.sub.3 -fluoroalkyl, R.sup.4 is fluorine, chlorine or bromine, with the proviso that one or both of the radicals R.sup.2 and R.sup.3 are C.sub.1 -C.sub.3 -fluoroalkyl, herbicides containing these compounds as active ingredients, and their use for controlling unwanted plant growth.

Abstract: An arm-window lifter, especially for motor vehicles, with a main arm engaging at a window which is supported at a support member by way of a first pivot bearing and pivotal manually and/or motor driven, and with a positively controlled auxiliary arm engaging at the window and rotatably supported on the main arm, which includes a planetary gear element which is supported at the main arm at an axial distance to the first pivot bearing in a second pivot bearing, whereby the planetary gear element engages at the auxiliary arm and in teeth fixedly arranged at the support member.

Abstract: 3,7-Dichloroquinoline derivatives which are substituted in the 8-position by --CH.dbd.CHR or --CH.dbd.NR.sup.5, and their use for controlling undesirable plant growth.

Abstract: Quinoline derivatives of the formula ##STR1## where X, n, R.sup.1, R.sup.2 and Y have the meanings given in the description, are used for controlling undesirable plant growth.