Abstract: A measuring device determines the size, size distribution, and/or concentration of nanoscopic particles or hollow spaces in a measuring sample, the degree of opacity of such measuring samples, or the degree of roughness of surfaces by determining the wavelength and scattering angle dependent intensities of a measuring radiation scattered on a measuring sample. The measuring device comprises a retaining device for a measuring sample to be measured, a detector comprising at least one detector inlet, an evaluation unit, and at least two radiation sources that are respectively at a distance from each other and at a distance from the measuring sample. Via the radiation sources, a ray bundle can in each case be emitted in an essentially parallel beam in the direction of the measuring sample. The ray bundles directed onto the measuring sample are aligned or can be aligned in different angles onto the measuring sample.

Abstract: The present invention relates to a device for detecting millimeter waves, having at least one field effect transistor with a source, a drain, a gate, a gate-source contact, a source-drain channel, and a gate-drain contact. Compared to a similar such device, the problem addressed by the present invention, among others, is that of providing a device which enables the provision of a field effect transistor for detecting the power and/or phase of electromagnetic radiation in the Thz frequency range. In order to create such a device, it is suggested according to the invention, that a device be provided which has an antenna structure wherein the field effect transistor is connected to the antenna structure in such a manner that an electromagnetic signal received by the antenna structure in the THz range is fed into the field effect transistor via the gate-source contact, and wherein the field effect transistor and the antenna structure are arranged together on a single substrate.

Abstract: The present invention relates to a device for generating and detecting coherent electromagnetic radiation (8) in the THz frequency range, comprising an optically parametric oscillator (2) for generating electromagnetic radiation in the THz frequency range (8). In order to provide a device for generating and detecting electromagnetic radiation in the THz frequency range, according to the invention the device comprises a coherent phase-sensitive detector (3, 21) for detecting the intensity and phase of the electromagnetic radiation generated by the optically parametric oscillator (2).

Abstract: The invention relates to a mass spectrometric method for the detection and for the quantification of double stranded nucleic acids which are not covalently associated with one another.

Abstract: The present invention relates to a polypeptide which has a novel specific arabinose transporter function as well as to nucleic acids coding therefore. The invention further relates to host cells, in particular modified yeast strains which contain the coding nucleic acids and express the polypeptide and functionally integrate it into the plasma membrane and are thus able to absorb L-arabinose. When using modified host cells which express additional proteins of the arabinose metabolic pathway, arabinose can be fermented by these cells, in particular into ethanol. The present invention is therefore relevant, inter alia, in connection with the production of biochemicals from biomass, such as bioethanol for example.

Abstract: The present invention relates to a measuring device to determine the size, size distribution and/or concentration of nanoscopic particles or hollow spaces in a measuring sample, the degree of opacity of such measuring samples, or the degree of roughness of surfaces by determining the wavelength and scattering angle dependent intensities of a measuring radiation scattered on a measuring sample, comprising a retaining device for a measuring sample to be measured, a detector, comprising at least one detector inlet, an evaluation unit and at least two radiation sources, which are respectively at a distance from each other and at a distance from the measuring sample, which comprise a multiple wavelength spectrum or a continuous spectrum, and the radiation intensities of which are adjustable and/or determinable, wherein via the radiation sources one ray bundle can in each case be emitted in an essentially parallel beam in the direction of a measuring sample, and wherein the ray bundles which can be directed onto th

Abstract: The invention relates to a method for material removal on solid bodies, in particular for microstructuring and cutting, by means of liquid jet-guided laser etching, the removed material just as the non-reacted etching components being recycled to a high degree. In this way, silicon with high purity can be recovered either in a polycrystalline manner or be deposited epitaxially on other substrates in the same process chain.