Abstract: A method for obtaining NMR (=nuclear magnetic resonance) spectra of quadrupolar nuclei having spin I>½ using magic angle spinning (=MAS) in solid powders and transfer of coherences from a neighboring nucleus with spin S= 1/2 to single- or double-quantum transitions of quadrupolar nuclei having spin I>½, is characterized in that the transfer of coherences occurs through a combination of scalar and residual dipolar splittings. With the inventive method improved NMR-spectra can be obtained from which parameters can be extracted, which can be related to the structure and internal dynamics of solids containing the quadrupolar nuclei.

Abstract: The invention relates to a tempering device (1) for objects (2) located on the object carrier (3) of a microtome (4) of a cryostat (5) comprising an operating means supply (6) connected to a cooling device or a cooling and heating device (7) arranged on the object carrier (3), and a temperature control system. According to the invention, one such tempering device (1) is embodied in such a way that the operating means supply (6) does not hinder the work carried out on the microtome (4), and the accuracy of the cut is affected as little as possible. To this end, the operating means supply (6) is displaceably positioned in a guiding element (12) which is arranged on the guiding carriage (8) for the advancing movement (9) and the cutting movement (10) of the object head (11) and is oriented parallel to the direction of advancement (9), in such a way that it can be guided away from the object head (11).

Abstract: In an artificial endosphincter (1) for the urethra, comprising a retaining part (2) and a valve (10) which can be manually actuated by pressure from the outside, the retaining part (2) is formed as self-expanding stent. This permits gentle, simple and safe positioning as well as reliable and simple handling of the artificial endosphincter (1).

Abstract: A method and a device for connecting parts of an exhaust gas system which comprises at least one metal tube formed from a bellows and optionally further parts disposed coaxially within and/or outside of the bellows and at least one further system part to be connected to the metal tube, are characterized in that one end of a short connecting tube is inserted positively in an end of the metal tube and the other end is inserted positively in the system part to be connected to the metal tube, and the system part is moved to the end of the metal tube facing the system part, thereby leaving a gap, and the system part, the connecting tube and the metal tube being connected from the outside in one working step.

Abstract: A magnet arrangement comprising a superconducting magnet coil system (C) for generating a magnetic field in the direction of a z axis in a working volume (AV) disposed on the z axis about z=0, wherein the field of the magnet coil system (C) in the working volume (AV) comprises at least one inhomogeneous contribution Hn·zn with n≧2 whose contribution to the total field strength on the z axis about z=0 varies with the nth power of z, and wherein a field shaping device (P) of magnetic material is provided, which is substantially cylindrically symmetrical with respect to the z axis, is characterized in that the magnet coil system (C) is provided for use in an apparatus for high-resolution magnetic resonance spectroscopy and the field shaping device (P) has, at least partially, a radial separation from the z axis of less than 80 mm and compensates for at least one of the inhomogeneous field contributions Hn·zn of the magnet coil system (C) by at least 50%, wherein at least one additi

Abstract: The invention concerns a method of controlling a heat accumulator. According to the method the heat carrier, in contrast to conventional methods, is not controlled on the basis of differences in temperatures between the energy collector and heat accumulator but as a function of the internal energy in the energy collector, the connection line between the energy collector and the heat accumulator and in the heat accumulator.

Abstract: The invention relates to a grazing angle microscope for spectroscopic applications. A novel light path having two shifting planar mirrors permits spectroscopic investigation of a sample area off the optical microscope axis at grazing angles as well as visual viewing at steeper angles of incidence of the light.