Abstract: The present invention is related to a method for preparing an X-ray amorphous or weakly crystalline metal oxide fluoride of a composition represented by the formula Ma+ObFc comprising the steps of b) providing a precursor, whereby the precursor is a fluorinated metal compound having a composition which is represented by the formula Ma+F(a?d)BdLxb) converting the precursor into an metal oxide/hydroxide fluoride; and c) calcinating the metal oxide/hydroxide fluoride having the formula Ma+OcHfFc to generate the X-ray amorphous or weakly crystalline metal oxide fluoride of the formula Ma+ObFc, whereby M is selected from the group comprising metals of the first, second, third and fourth main group and any subgroup of the periodic table; B is a group or an anion which is selected from the group comprising alkoxide, enolates, alkyl, chloride, bromide, iodide, nitrate, and organic acid anions; B is preferably an alkoxy group; L is a solvent other than water; a is any integer of 1, 2, 3, 4, 5 or 6, preferably 2 or 3;

Abstract: A semiconductor device according to the invention for emitting light when a voltage is applied includes a first (3), a second (5) and a third active semiconductor region (7A-7C). While the conductivity of the first semiconductor region (3) is based on charge carriers of a first conductivity type, the conductivity of the second semiconductor region (5) is based on charge carriers of a second conductivity type, which have a charge opposite to the charge carriers of the first conductivity type The active semiconductor region (5 13) is arranged between the first and the second semiconductor regions (3, 5). Embedded in the active semiconductor region (5) are quantum structures (13) which are made from a semiconductor material which has a direct band gap. In that respect the term quantum structures is used to denote structures which in at least one direction of extent are of a dimension which is so small that the properties of the structure are substantially also determined by quantum-mechanical processes.

Abstract: The invention relates to a high sensitive semiconductor type hydrogen sensor, an alarm of hydrogen which incorporates this sensor and a method of sensing hydrogen concentrations by using this sensor.

Abstract: An inventive semiconductor device for emitting light when applying a voltage comprises: a first semiconductor region (3) whose conductivity is based on charge carriers of a first type of conductivity, e.g. electrons; a second semiconductor region (5) whose conductivity is based on charge carriers of a second type of conductivity, e.g. holes, which have a charge opposite that of the charge carriers of the first type of conductivity and; an active semiconductor region (7A 7C), which is situated between the first semiconductor region (3) and the second semiconductor region (5) and in which the emission of light occurs, these regions being embedded in the quantum structures (13, 15) of a semiconductor material having a direct band gap in at least two different intercoupled configurations.

Abstract: A quantum well structure according to the invention includes a quantum well layer (107) arranged between two barrier layers (109, 112). It is distinguished in that at least one of the barrier layers (109) includes nanostructures (110) which compensate or modulate a lateral homogeneity of the barrier layer (109), that exists without the nanostructures (110), that is to say a homogeneity in the directions extending perpendicularly to the stacking direction of the layers in the quantum well structure.

Abstract: The invention relates to an optical biopsy instrument (100) comprising (a) a substantially cylindrical cannula (22) with a proximal end (24) and a distal end (26), said cannula (22) having at least one lateral opening (28), and (b) an endoscope (10) which is axially movable inside the cannula (22). The biopsy instrument (100) according to the invention permits, for the first time, a targeted removal of tissue samples (34) from narrow duct systems of the body, in particular from milk ducts of the breast, with optimal endoscopic visual monitoring.

Abstract: The invention relates to a high sensitive semiconductor type hydrogen sensor, an alarm of hydrogen which incorporates this sensor and a method of sensing hydrogen concentrations by using this sensor.

Abstract: The invention relates to a method and a device for the automatic detection of motor super-activity of a test person (1). With the help of a transmitting-/receiving means (2), microwave signals are transmitted and reflected microwave signals formed in the reflection on the test person (1) are received. With the help of an analysis of the Doppler frequency shift between the transmitted and received microwave signals, motor super-activity events in the test person (1) are detected. The frequency of the occurrence of motor super-activity events during a specified measuring time period is determined automatically and can be used for the diagnosis of psychiatric disorders in the test person (1).

Abstract: New 1-(2-hydroxylaryl)-alkane-1-on-oximes, procedure for their preparation, and their applicability to pharmaceutical preparations. One purpose is to develop 1-(2-hydroxyaryl)-alkane-1-on-oximes with desirable pharmacological properties. The new compounds of Formula I ##STR1## are characterised by pharmacologically valuable properties, in particular by anti-asthmatic, anti-anaphylactic, antiphlogistic, antihypertensive, spasmolytic, antirheumatic, and antithrombotic, potentials and are applicable in human and veterinary medicine to therapy of asthma bronchiale and other allergic diseases, various kinds of inflammatory and rheumatic diseases, and thrombosis.

Abstract: Safety biopsy forceps, in particular for infants, comprise operating forceps, a flexible shaft, a pulling element, as well as a head with cutting- and/or grasping elements, of which at least one element is moveable by means of the pulling element, provided with a head with cutting- and/or grasping element which is detachably fastened on the flexible shaft. The flexible shaft is detachably fastened to the operating forceps and the pulling element to the operating forceps. The pulling element is adjustable for the setting of the cutting- and/or grasping elements and the setting of the force of the cutting process and can also be locked in after the adjustment. The cutting- and/or grasping elements are provided at the joint with a recess which prevents tissue from becoming lodge during closing of the elements.

Abstract: An intervertebral disc endoprothesis comprises two symmetrical, concave end plates with an intermediate convex spacing piece. The end plates and the spacing piece have a plane guide rim. The end plates either have an edge shoulder or an annular groove for a toroid provided on the spacing piece. Alternatively, the intervertebral disc endoprothesis comprises two asymmetric end plates and a spacing piece, however, the two areas of movement are offset by 90.degree. in relation to each other and are partial surfaces of a cylinder. In the third variation, the two symmetrical end plates are convex, the spacing piece is cylindrical as well as concave at the two ends and has a durable cover.