Abstract: A formulation usable to produce plates and shaped bodies has a base slip, quartz glass particles and multicomponent glass particles that are crystallizable or at least partly crystallized. The base slip contains water as dispersion medium with a content between 30% and 50% by weight and ultrafine SiO2 particles distributed, preferably colloidally therein, with a proportion between 50% and 70% by weight. The proportion of quartz glass particles in the formulation is in the range from 40% to 70% by weight and the proportion the multicomponent glass particles in the formulation is in the range from 5% to 37% by weight. The formulation can be used in a composite material. Firing aids can be made from the composite material.

Abstract: The disclosure relates to a heat exchange compound module and a manufacturing method for a heat exchange compound module. The heat exchange compound module comprises a metal-ceramic substrate and a heat exchange structure. The metal-ceramic substrate comprises an outer layer of a first metallic material. The heat exchange structure is made of a second metallic material and is connected to the outer layer of the metal-ceramic substrate only by an eutectic bond between the first metallic material and the second metallic material.

Abstract: The disclosure relates to a heat exchange compound module and a manufacturing method for a heat exchange compound module. The heat exchange compound module comprises a metal-ceramic substrate and a heat exchange structure. The metal-ceramic substrate comprises an outer layer of a first metallic material. The heat exchange structure is made of a second metallic material and is connected to the outer layer of the metal-ceramic substrate only by an eutectic bond between the first metallic material and the second metallic material.

Abstract: Described is a metal-insulator substrate, which provides a structuring of the metallization for direct cooling. Furthermore, a process for manufacturing this metal-insulator substrate is described.

Abstract: One aspect is a logic power module, with at least one logic component, at least one power component and a substrate. The logic element and the power component are provided in separate areas on the substrate. The logic component on the substrate is provided by thick printed copper; and the power component is provided by a metal-containing thick-film layer, and, provided thereon, a metal foil.

Abstract: Inhibitors of native, non-mutated KRAS for use in preventing and/or treating malignant melanoma and/or hepatocellular carcinoma are disclosed. In addition, a KRAS inhibitor is combined with an inhibitor of another factor of the Ras-Raf-MEK-ERK pathway such as a BRAF inhibitor to reach synergistic inhibitory effects and to overcome tumor cell resistance. The disclosure is further directed to pharmaceutical compositions comprising such inhibitor and a pharmaceutically acceptable agent.

Abstract: A system and method are described for tracking on-line advertisement exposure information for particular user devices. Alternative approaches are proposed as alternatives to using cookies on user devices to maintain a summary of previous on-line advertisement exposure. A survey participant server maintains a database including elements containing the summary of previous on-line advertisement exposure, each element being associated with a unique identifier value assigned to a particular user device. Such information is subsequently used to administer on-line surveys presented to users via the user devices.

Abstract: In the case of an indicator having an electrooptical display (1), a shutter (2) is arranged in front of the display (1), partially covers the display (1) and has an area which covers the display (1) such that the covered area of the display (1) illuminates the shutter (2), by parts (2a, 2b, 2d, 2f, 2g) of the shutter (2) being designed to be translucent

Abstract: A sampler for taking a defined amount of sample of a fluid medium from a sample-taking site, with a tubular line, which can be brought into contact with the fluid medium at the sample-taking site, for conducting the fluid medium into at least one sample storing receptacle, with a pump. The pump moves the medium via the tubular line into the sample storing receptacle. A sequence control activates the pump, such that it dispenses the defined amount of sample into the sample storing receptacle. The pump is a rotary piston pump.

Abstract: A condenser arrangement for brightfield illumination and/or darkfield illumination for optical microscopes comprises in a housing basic optics having at least one lens, at least one front optics which can be inserted into the illumination beam path in front of the basic optics, and means for inserting the front optics into the illumination beam path of the microscope. A first swiveling arm and a second swiveling arm are swivelably arranged at the housing of the condenser. The first swiveling arm carries first front optics with a high aperture for brightfield illumination and the second swiveling arm carries second front optics for darkfield illumination. The two swiveling arms are arranged at a defined distance from the shared basic optics of the condenser in direction of the optical axis of the illumination beam path. An aperture iris diaphragm is provided on the object side in front of the basic optics and is opened when the cardioid optics are inserted.

Abstract: The invention is directed to an illumination device for microscopes which is provided with a halogen lamp with a reflector and a filament extending in direction of the optical axis and a scatter disk and which enables a homogeneous illumination of the visual field without additional optical components.

Abstract: The subject matter of the invention is an arrangement for focusing and adjusting illumination devices at microscopes which comprises a stationary stage and a housing or a stand with a stand base. A condenser carrier is arranged at the stand base so as to be removable and carries a condenser holder which is mounted so as to be displaceable in direction of the optical axis of the microscope beam path and at which a condenser is arranged. Further, a device is provided at the condenser holder for exchanging and adjusting the condenser. According to the invention, the condenser carrier is arranged between the observer and the optical axis of the microscope beam path in the area of the stand base adjacent to (facing) the observer.

Abstract: An optical arrangement with telecentric beam region for imaging objects, preferably a microscope, comprises in a main beam path at least one infinity-imaging objective and at least one eyepiece with an eyepiece intermediate image plane and a tube lens of suitable focal length which is arranged between the latter at a fixed distance from the objective. At least one optical element in the form of a beam splitter module or beam splitters for laterally splitting off at least a first partial beam path is provided in the space between the objective and the tube lens in which the telecentric beam path is located. A tube lens is located at a suitable distance from the objective in each of these first partial beam paths. At least a second partial beam path is branched off from at least one of these first partial beam paths and a tube lens is located at a suitable distance from the objective in each of these second partial beam paths.

Abstract: An optical arrangement with telecentric beam region for imaging objects, preferably a microscope, comprises in a main beam path at least one infinity-imaging objective and at least one eyepiece with an eyepiece intermediate image plane and a tube lens of suitable focal length which is arranged between the latter at a fixed distance from the objective. At least one optical element in the form of a beam splitter module or beam splitters for laterally splitting off at least a first partial beam path is provided in the space between the objective and the tube lens in which the telecentric beam path is located. A tube lens is located at a suitable distance from the objective in each of these first partial beam paths. At least a second partial beam path is branched off from at least one of these first partial beam paths and a tube lens is located at a suitable distance from the objective in each of these second partial beam paths.

Abstract: A prism changing device for a microscope for carrying out interference contrast examinations has a carrier for attaching the prism changing device to the microscope and a holder with at least two receptacles for prisms which is held at the carrier so as to be movable relative to it between at least two work positions in which one of the receptacles is arranged in the beam path of the microscope when the prism changing device is attached to the microscope. At least one of the receptacles is displaceable and rotatable relative to the holder in a plane transverse to the beam path of the microscope.

Abstract: The invention is directed to a method of differential interference contrast in which the object is illuminated by natural light and the light coming from the object is first polarized after passing through the objective. The observation is carried out with a shearing interferometer which is known per se.

Abstract: A condenser arrangement for brightfield illumination and/or darkfield illumination for optical microscopes comprises in a housing basic optics having at least one lens, at least one front optics which can be inserted into the illumination beam path in front of the basic optics, and means for inserting the front optics into the illumination beam path of the microscope. A first swiveling arm and a second swiveling arm are swivelably arranged at the housing of the condenser. The first swiveling arm carries first front optics with a high aperture for brightfield illumination and the second swiveling arm carries second front optics for darkfield illumination. The two swiveling arms are arranged at a defined distance from the shared basic optics of the condenser in direction of the optical axis of the illumination beam path. An aperture iris diaphragm is provided on the object side in front of the basic optics and is opened when the cardioid optics are inserted.

Abstract: A sampler for taking a defined amount of sample of a fluid medium from a sample-taking site, with a tubular line, which can be brought into contact with the fluid medium at the sample-taking site, for conducting the fluid medium into at least one sample storing receptacle, with a pump. The pump moves the medium via the tubular line into the sample storing receptacle A sequence control activates the pump, such that it dispenses the defined amount of sample into the sample storing receptacle. The pump is a rotary piston pump.

Abstract: The invention provides novel solvent-free two-component polyurethane coating agents for preparing high quality yellowing-free coatings and a process for the preparation thereof. The coating agents include binder mixtures containing a polyisocyanate component with a viscosity at 23° C. of 2,000 to 150,000 mPas, a NCO content of 14 to 23 wt. % and a calculated mean NCO functionality of at least 2.8; a polyol component with a mean OH functionality <3, a viscosity at 23° C. of 5,000 to 150,000 mPas and a hydroxyl value of 400 to 700 mg KOH/g; and optionally one or more catalysts.

Abstract: A microscope tube comprises a housing (1) having a lower housing part (3) and an upper housing part (2), input optics (9) mounted on the lower housing part (3), which are provided for coupling to an infinite optical path of a microscope, a tube lens (12) mounted in the upper housing part (2), which is arranged on a common optical axis (OA1) with the input optics (9) and combines ray pencils supplied by the input optics (9) in an intermediate image, so that a finite optical path is formed between the tube lens (12) and the intermediate image, and a prism unit (13) mounted in the upper housing part (2) and arranged following the tube lens (12), said prism unit (13) deflecting the further optical path (OA2) by a solid angle of between 65° and 75° and being arranged in the finite optical path such that the intermediate image is viewable without further intermediate imaging by binocular optics (4) mountable on the upper housing part (2), said upper housing part (2) and said lower housing part (3) being mut