Tanja Riedel

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Human P2X7 receptors were expressed in Xenopus laevis oocytes and single channels were recorded using the patch-clamp technique in the outside-out configuration. ATP4- evoked two types of P2X7 receptor-mediated single channel currents characterized by short-lived and long-lived openings. The short- and long-lasting open states had mean open times of(More)
Using the patch-clamp method, we studied the influence of external alkali and organic monovalent cations on the single-channel properties of the adenosine triphosphate (ATP)-activated recombinant human P2X(7) receptor. The slope conductance of the hP2X(7) channel decreased and the reversal potential was shifted to more negative values as the ionic diameter(More)
The availability of up-to-date and reliable land cover maps is of great importance for many earth science applications. For the generation of operational and transferable land cover products the development of semi-and fully-automated classification procedures is essential. The Enviland project deals with the development of novel approaches for the(More)
Focus of this paper is on the integration of optical and SAR data for improved land cover mapping in agricultural areas. The test site is located east of Nordhausen, Thuringia, Germany. From April to December 2005 Landsat-5 TM, ASAR APP and ERS-2 data were acquired continuously over the test site building up a comprehensive time series. Regarding the fusion(More)
The availability of up-to-date and reliable land cover/use maps is of great importance for many earth science applications. Aim of this study was to systematically analyse the effect of spatial resolution of C-band SAR data on segmentation quality and land cover classification accuracy as well as to find robust SAR parameters for the detection of broad land(More)
Russia holds the largest forestry resources in the world (ca. 22%). One of the most wooded regions of Russia is the district Irkutsk. The detection and monitoring of forest management activities and disturbances in this district is of great interest for the State Forest Service. Large changes in forest management due to legal and illegal logging as well as(More)
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