@article{ZielkeStrecker2009, author = {Zielke, Olaf and Strecker, Manfred}, title = {Recurrence of large earthquakes in magmatic continental rifts : insights from a paleoseismic study along the Laikipia-Marmanet Fault, Subukia Valley, Kenya Rift}, issn = {0037-1106}, doi = {10.1785/0120080015}, year = {2009}, abstract = {The seismicity of the Kenya rift is characterized by high-frequency low-magnitude events concentrated along the rift axis. Its seismic character is typical for magmatically active continental rifts, where igneous material at a shallow depth causes extensive grid faulting and geothermal activity. Thermal overprinting and dike intrusion prohibit the buildup of large elastic strains, therefore prohibiting the generation of large-magnitude earthquakes. On 6 January 1928, the M-S 6.9 Subukia earthquake occurred on the Laikipia-Marmanet fault, the eastern rift-bounding structure of the central Kenya rift. It is the largest instrumentally recorded seismic event in the Kenya rift, standing in contrast to the current model of the rift's seismic character in which large earthquakes are not anticipated. Furthermore, the proximity of the ruptured fault and the rift axis is intriguing: The rift-bounding structure that ruptured in 1928 remains seismically active, capable of generating large-magnitude earthquakes, even though thermally weakened crust and better oriented structures are present along the rift axis nearby, prohibiting any significant buildup of elastic strain. We excavated the surface rupture of the 1928 Subukia earthquake to find evidence for preceding ground-rupturing earthquakes. We also made a total station survey of the site topography and mapped the site geology. We show that the Laikipia-Marmanet fault was repeatedly activated during the late Quaternary. We found evidence for six ground-rupturing earthquakes, including the 1928 earthquake. The topographic survey around the trench site revealed a degraded fault scarp of approximate to 7.5 m in height, offsetting a small debris slide. Using scarp-diffusion modeling, we estimated an uplift rate of U = 0.09-0.15 mm/yr, constraining the scarp age to 50-85 ka. Assuming an average fault dip of 55 degrees-75 degrees, the preferred uplift rate (0.15 mm/yr) accommodates approximately 10\%-20\% of the recent rate of extension (0.5 mm/yr) across the Kenya rift.}, language = {en} } @article{Zielnica2005, author = {Zielnica, Krzysztof}, title = {Karolina Jaenisch-Pavlova, Adam Mickiewicz und Alexander von Humboldt}, volume = {VI}, number = {11}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-35346}, pages = {38 -- 56}, year = {2005}, abstract = {Auf seinen Reisen traf Alexander von Humboldt wiederholt Personen, die sp{\"a}ter die zuf{\"a}llige Begegnung oder eine fl{\"u}chtige Bekanntschaft mit ihm f{\"u}r ihren sozialen bzw. gesellschaftlichen Aufstieg zu nutzen versuchten. So war es auch mit Karolina Jaenisch (1810-1893), der sp{\"a}teren K. Karlovna Pavlova, der Tochter eines in Russland ans{\"a}ssigen deutschen Hochschullehrers. Humboldt begegnete ihr 1829 in Moskau bei einer Soiree, und er soll sie zu weiterem literarischen (dichterischen) Schaffen ermuntern haben. Humboldt nahm damals ein Bruchst{\"u}ck des von ihr aus dem Polnischen ins Deutsche {\"u}bersetzten Poems „Konrad Wallenrod" von Adam Mickiewicz, dem sp{\"a}teren polnischen prince des po{\`e}tes, mit, und {\"u}bergab es Goethe. Zu jener Zeit war Karolina sehr eng mit Mickiewicz befreundet und beteuerte ihm in Briefen ihre grenzlose und ewige Liebe. Mickiewicz war aber fest entschlossen, Russland f{\"u}r immer zu verlassen. Das tat er 1829. In ihrem Sonett „An Alexander von Humboldt" dr{\"u}ckte sie, nach Meinung von Literaturkritikern, ihren unstillbaren Schmerz {\"u}ber den Verlust des geliebten Mickiewicz aus. Humboldt traf Karolina noch einmal 30 Jahre sp{\"a}ter in Berlin.}, language = {de} } @article{Zielsdorf2007, author = {Zielsdorf, Frank}, title = {Milit{\"a}rische Erinnerungskulturen zwischen Adelsmentalit{\"a}t und Professionalisierung - Regimentskulturen des preußischen Offizierskorps im 17. und 18. Jahrhundert}, series = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, volume = {11}, journal = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, number = {2}, issn = {1861-910X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-21229}, pages = {158 -- 162}, year = {2007}, language = {de} } @article{Ziemann2006, author = {Ziemann, Martin Andreas}, title = {In situ micro-Raman spectroscopy on minerals on-site in the Grotto Hall of the New Palace, Park Sanssouci, in Potsdam}, series = {Journal of Raman spectroscopy : JRS}, volume = {37}, journal = {Journal of Raman spectroscopy : JRS}, number = {10}, publisher = {Wiley}, address = {Chichester}, issn = {0377-0486}, doi = {10.1002/jrs.1584}, pages = {1019 -- 1025}, year = {2006}, abstract = {Questions of identity and provenance of minerals that are parts of masterpieces in museums have become increasingly important in mineralogical and historical studies. Detailed investigations of valuable and unique objects require on-site, nondestructive and noninvasive methods because touching or removing them may cause irreparable damage. A mobile Raman-microprobe has been used to meet these demands for truly in situ mineralogical studies of the large collection of minerals and rocks of the Prussian kings in the Grotto Hall (Grottensaal) of the New Palace (Neues Palais), Park Sanssouci in Potsdam. Minerals on the walls of the Grotto Hall were analyzed to identify them and thereby to complete the data bank of the collection. Fluid and solid inclusions in the interior of a large quartz crystal have been studied to provide evidence of the provenance of the crystal. The fluid inclusions contain aqueous saline solutions, whereas the solid inclusions are needles of anhydrite with a length of about 1.5 mm. The quartz probably originated from an area in the eastern Alps, from the surroundings of Bad Gastein, Austria. This is the first on-site and in situ study of inclusions below the surface of a mineral with a mobile Raman-microprobe outside a laboratory.}, language = {en} } @article{ZiemannFoersterHarlovetal.2005, author = {Ziemann, Martin Andreas and F{\"o}rster, Hans-J{\"u}rgen and Harlov, Daniel E. and Frei, Dirk}, title = {Origin of fluorapatite-monazite assemblages in a metamorphosed, sillimanite-bearing pegmatoid, Reinbolt Hills, East Antarctica}, issn = {0935-1221}, year = {2005}, abstract = {Thermobarometrical and mineral-chemical investigations by electron microprobe and LA-ICP-MS on a sillimanite- bearing pegmatoid from the Reinbolt Hills provide important constraints on the P-T-X-age relations of part of East Antarctica during Pan-African tectonism. U-Th-total Pb ages of monazite imply that the pegmatoid of originally Grenvillan age (zircon U-Pb age of ca. 900 Ma) underwent a major, late Pan-African (Cambrian) regional, granulite-facies metamorphism between 500 and 550 Ma. Most of the monazite formed during this event, as result of apatite metasomatism owing to infiltration of high-grade metamorphic fluids. Apatite-biotite and other mineral thermobarometers define the peak metamorphic temperatures and pressures with 850-950 degrees C and 0.8-1.0 GPa. The F-Cl-OH relations in apatite, and biotite, the chemistry of fluid inclusions and the presence of K-feldspar microveins suggest that the metasomatising fluid was a CO2-bearing, diluted KCl brine. The pegmatoid is the first record of monazite-(Ce) formed from fluorapatite that is rich in U (up to 2.6 Wt\% UO2) and possesses Th/U ratios <1 (0.09 on average). These chemical signatures are direct reflection of the U and Th concentration patterns in the parental fluorapatite}, language = {en} } @article{ZiemannMadariaga2020, author = {Ziemann, Martin Andreas and Madariaga, Juan Manuel}, title = {Applications of Raman spectroscopy in art and archaeology}, series = {Journal of Raman spectroscopy}, volume = {52}, journal = {Journal of Raman spectroscopy}, number = {1}, publisher = {Wiley}, address = {Hoboken}, issn = {0377-0486}, doi = {10.1002/jrs.6054}, pages = {8 -- 14}, year = {2020}, abstract = {The 10th edition of the International Congress on the Application of Raman Spectroscopy in Art and Archaeology (RAA2019) was held in Potsdam (Germany) from 3 to 7 September 2019, with eight keynote lectures, 35 oral presentations and 18 Poster Presentations. The number of active participants was 68 delegates from 20 countries among the 236 authors that presented at least one work.}, language = {en} } @article{ZiemannSchmidtMirwald2004, author = {Ziemann, Martin Andreas and Schmidt, Christian and Mirwald, Peter W.}, title = {Raman spectroscopic study of the liquid-liquid transition in water}, issn = {0024-4937}, year = {2004}, language = {en} } @article{ZiemertIshidaWeizetal.2010, author = {Ziemert, Nadine and Ishida, Keishi and Weiz, Annika and Hertweck, Christian and Dittmann-Th{\"u}nemann, Elke}, title = {Exploiting the natural diversity of microviridin gene clusters for discovery of novel tricyclic depsipeptides}, issn = {0099-2240}, doi = {10.1128/AEM.02858-09}, year = {2010}, abstract = {Microviridins are ribosomally synthesized tricyclic depsipeptides produced by different genera of cyanobacteria. The prevalence of the microviridin gene clusters and the natural diversity of microviridin precursor sequences are currently unknown. Screening of laboratory strains and field samples of the bloom-forming freshwater cyanobacterium Microcystis via PCR revealed global occurrence of the microviridin pathway and an unexpected natural variety. We could detect 15 new variants of the precursor gene mdnA encoding microviridin backbones that differ in up to 4 amino acid positions from known isoforms of the peptide. The survey not only provides insights into the versatility of the biosynthetic enzymes in a closely related group of cyanobacteria, but also facilitates the discovery and characterization of cryptic microviridin variants. This is demonstrated for microviridin L in Microcystis aeruginosa strain NIES843 and heterologously produced variants.}, language = {en} } @article{ZiemskiJędrzejczak2020, author = {Ziemski, Krystian and Jędrzejczak, Maria}, title = {Die Konsultation gesellschaftlicher Kr{\"a}fte bei administrativer Normsetzung im polnischen Recht und im unionalen Recht}, series = {KWI Schriften}, journal = {KWI Schriften}, number = {12}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-486-9}, issn = {1867-951X}, doi = {10.25932/publishup-48620}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-486205}, pages = {141 -- 152}, year = {2020}, language = {de} } @article{ZienRaetschMikaetal.2000, author = {Zien, Alexander and R{\"a}tsch, Gunnar and Mika, Sebastian and Sch{\"o}lkopf, Bernhard and Lengauer, Thomas and M{\"u}ller, Klaus-Robert}, title = {Engineering support vector machine kernels that recognize translation initiation sites}, issn = {1367-4803}, year = {2000}, language = {en} }