@article{Angelow2000, author = {Angelow, J{\"u}rgen}, title = {Forschung in ungel{\"u}fteten R{\"a}umen : Anmerkungen zur Milit{\"a}rgeschichtsschreibung in der ehemaligen DDR}, isbn = {3-506-74475-5}, year = {2000}, language = {de} } @article{SegertZierke2000, author = {Segert, Astrid and Zierke, Irene}, title = {Handlungsstrukturen in einer {\"o}kologisch orientierten Genossenschaft}, year = {2000}, language = {de} } @article{Klessmann2000, author = {Kleßmann, Christoph}, title = {Stationen des {\"o}ffentlichen und historiographischen Umgangs in Deutschland mit der Z{\"a}sur von 1945}, year = {2000}, language = {de} } @article{FennekohlLucasPueschel2000, author = {Fennekohl, Alexandra and Lucas, Maria and P{\"u}schel, Gerhard Paul}, title = {Induction by interleukin 6 of G(s)-coupled prostaglandin E(2) receptors in rat hepatocytes mediating a prostaglandin e(2)-dependent inhibition of the hepatocyte's acute phase response}, year = {2000}, abstract = {Prostanoids, that are released from nonparenchymal liver cells in response to proinflammatory stimuli, are involved in the regulation of hepatic functions during inflammation. They exert their effects on their target cells via heptahelical receptors in the plasma membrane. For the 5 prostanoids prostaglandin E(2) (PGE(2)), prostaglandin F(2alpha), prostaglandin D(2) (PGD(2)), prostacyclin, and thromboxane A(2) there exist 8 receptors that are coupled to different heterotrimeric G proteins. These receptors are expressed differentially in the 4 principal liver cell types, i.e., hepatocytes, Kupffer cells, sinusoidal endothelial cells, and hepatic stellate cells. It was intriguing, that the messenger RNA (mRNA) of none of the G(s)-coupled prostanoid receptors (DP-R, EP2-R, EP4-R, and IP-R) that can attenuate the inflammatory reaction were present in hepatocytes. The current study shows that the expression of the G(s)-coupled prostanoid receptors EP2-R, EP4-R, and DP-R, but not the IP-R, was efficiently and rapidly up-regulated by treatment of hepatocytes in vitro or rats in vivo with the key acute phase cytokine interleukin 6 (IL-6). In IL-6-treated hepatocytes PGE(2) in turn attenuated the IL-6-induced alpha(2)-macroglobulin formation via a cyclic adenosine monophosphate (cAMP)- dependent signal chain. The data indicate that an IL-6-mediated induction of the previously not expressed EP2-R and EP4- R on hepatocytes might establish a prostanoid-mediated feedback inhibition loop for the attenuation of the acute phase response.}, language = {en} } @article{BurhenneSchneider2000, author = {Burhenne, Matthias and Schneider, Ingo}, title = {Rieselfelder}, year = {2000}, abstract = {Geschichte, Entwicklung und Funktionsprinzip von Rieselfeldern werden im zusammenhang mit der gesellschaftlichen Diskussion um Belastungs- und Gef{\"a}hrdungspotential beschrieben.}, language = {de} } @article{WeithoffLorkeWalz2000, author = {Weithoff, Guntram and Lorke, Andreas and Walz, Norbert}, title = {Effects of water-column mixing on bacteria, phytoplankton, and rotifers under different levels of herbivory in a shallow eutrophic lake}, year = {2000}, abstract = {Water column mixing is known to have a decisive impact on plankton communities. The underlying mechanisms depend on the size and depth of the water body, the nutrient status, and the plankton community structure and they are well understood for shallow polymictic and deep stratified lakes. Two consecutive mixing events of similar intensity under different levels of herbivory were performed in enclosures in a shallow, but periodically stratified, eutrophic lake, in order to investigate the effects of water column mixing on bacteria abundance, phytoplankton abundance and diversity, and rotifer abundance and fecundity. When herbivory by filter-feeding zooplankton was low, water column mixing provoking a substantial nutrient input into the euphotic zone, led to an intense net increase of bacteria and phytoplankton biomass. Phytoplankton diversity was lower in the mixed enclosures than in the undisturbed ones owing to the larger contribution of a few fast-growing species. After the second mixing event at high biomass of filter-feeding crustaceans, the increase of phytoplankton biomass was lower than after the first mixing, and diversity remained unchanged as the enhanced growth of small fast-growing was prevented by zooplankton grazing. Bacteria abundance did not increase after the second mixing, when cladoceran biomass was high. Rotifer fecundity indicated a transmission of the phytoplankton response to the next trophic level. Our results suggest that water column mixing in shallow eutrophic lakes with periodic stratification has a strong effect on the plankton community by enhanced nutrient availability rather than resuspension or reduced light availability. This fuels the basis of the classic and microbial food chain via enhanced phytoplankton and bacteria growth, but the effects on biomass may be dampened by high levels of herbivory.}, language = {en} } @phdthesis{Fisch2000, author = {Fisch, Christian}, title = {Strafbarkeitsausschluß durch berechtigte Gesch{\"a}ftsf{\"u}hrung ohne Auftrag : zur strafbarkeitsausschließenden Wirkung der berechtigten Gesch{\"a}ftsf{\"u}hrung ohne Auftrag (\S\S 677 ff. BGB) im Verh{\"a}ltnis zwischen Gesch{\"a}ftsherrn und Gesch{\"a}ftsf{\"u}hrer}, series = {Europ{\"a}ische Hochschulschriften : Reihe 2, Rechtswissenschaft}, volume = {3024}, journal = {Europ{\"a}ische Hochschulschriften : Reihe 2, Rechtswissenschaft}, publisher = {Lang}, address = {Frankfurt am Main}, isbn = {3-631-37101-2}, issn = {0531-7312}, pages = {XIX, 304 S.}, year = {2000}, language = {de} } @article{BeimGrabenSaddySchlesewskyetal.2000, author = {Beim Graben, Peter and Saddy, Douglas and Schlesewsky, Matthias and Kurths, J{\"u}rgen}, title = {Symbolic dynamics of event-related brain potentials}, year = {2000}, language = {en} } @article{Baur2000, author = {Baur, J{\"u}rgen}, title = {Ostdeutsche Sportvereine im {\"U}bergang : zum Institutionentransfer im Sport}, isbn = {3-88020- 369-5}, year = {2000}, language = {de} } @book{OPUS4-19180, title = {Ellen Keys reformp{\"a}dagogische Visionen : "das Jahrhundert des Kindes" und seine Wirkungen}, series = {Beltz-Taschenbuch}, volume = {63}, journal = {Beltz-Taschenbuch}, editor = {Baader, Meike Sophia and Jacobi, Juliane and Andresen, Sabine}, publisher = {Beltz}, address = {Weinheim}, isbn = {3-407-22063-4}, pages = {367 S.}, year = {2000}, language = {de} }