@article{Dornfeldt2017, author = {Dornfeldt, Matthias}, title = {Viel L{\"a}rm um Nord Stream 2}, series = {Welt-Trends : das außenpolitische Journal}, volume = {25}, journal = {Welt-Trends : das außenpolitische Journal}, number = {132}, publisher = {WeltTrends}, address = {Potsdam}, isbn = {978-3-945878-67-5}, issn = {0944-8101}, pages = {4 -- 8}, year = {2017}, language = {de} } @article{Balzaretti2017, author = {Balzaretti, Ugo}, title = {Vie et mort de l'homme. Anthropologie entre Michel Foucault et Georges Canguilhem}, series = {Das Leben im Menschen oder der Mensch im Leben?}, journal = {Das Leben im Menschen oder der Mensch im Leben?}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-382-4}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-396002}, pages = {105 -- 121}, year = {2017}, language = {fr} } @article{BatistaRates2017, author = {Batista Rates, Bruno}, title = {Vie et histoire humaine dans L'{\´e}volution cr{\´e}atrice de Bergson}, series = {Das Leben im Menschen oder der Mensch im Leben?}, journal = {Das Leben im Menschen oder der Mensch im Leben?}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-382-4}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-396136}, pages = {369 -- 379}, year = {2017}, language = {fr} } @article{DongYangReschkeetal.2017, author = {Dong, Chao and Yang, Jing and Reschke, Stefan and Leimk{\"u}hler, Silke and Kirk, Martin L.}, title = {Vibrational Probes of Molybdenum Cofactor-Protein Interactions in Xanthine Dehydrogenase}, series = {Inorganic chemistry}, volume = {56}, journal = {Inorganic chemistry}, publisher = {American Chemical Society}, address = {Washington}, issn = {0020-1669}, doi = {10.1021/acs.inorgchem.7b00028}, pages = {6830 -- 6837}, year = {2017}, abstract = {The pyranopterin dithiolene (PDT) ligand is an integral component of the molybdenum cofactor (Moco) found in all molybdoenzymes with the sole exception of nitrogenase. However, the roles of the PDT in catalysis are still unknown. The PDT is believed to be bound to the proteins by an extensive hydrogen bonding network, and it has been suggested that these interactions may function to fine-tune Moco for electron- and atom-transfer reactivity in catalysis. Here, we use resonance Raman (rR) spectroscopy to probe Moco-protein interactions using heavy-atom congeners of lumazine, molecules that bind tightly to both wild-type xanthine dehydrogenase (wt-XDH) and its Q102G and Q197A variants following enzymatic hydroxylation to the corresponding violapterin product molecules. The resulting enzyme-product complexes possess intense near-IR absorption, allowing high-quality rR spectra to be collected on wt-XDH and the Q102G and Q197A variants. Small negative frequency shifts relative to wt-XDH are observed for the low-frequency Moco vibrations. These results are interpreted in the context of weak hydrogen-bonding and/or electrostatic interactions between Q102 and the -NH2 terminus of the PDT, and between Q197 and the terminal oxo of the Mo equivalent to O group. The Q102A, Q102G, Q197A, and Q197E variants do not appreciably affect the kinetic parameters k(red) and k(red)/K-D, indicating that a primary role for these glutamine residues is to stabilize and coordinate Moco in the active site of XO family enzymes but to not directly affect the catalytic throughput. Raman frequency shifts between wt-XDH and its Q102G variant suggest that the changes in the electron density at the Mo ion that accompany Mo oxidation during electron-transfer regeneration of the catalytically competent active site are manifest in distortions at the distant PDT amino terminus. This implies a primary role for the PDT as a conduit for facilitating enzymatic electron-transfer reactivity in xanthine oxidase family enzymes.}, language = {en} } @article{AllenArchambaultArcheretal.2017, author = {Allen, C. and Archambault, S. and Archer, A. and Benbow, W. and Bird, R. and Bourbeau, E. and Brose, Robert and Buchovecky, M. and Buckley, J. H. and Bugaev, V. and Cardenzana, J. V. and Cerruti, M. and Chen, Xuhui and Christiansen, J. L. and Connolly, M. P. and Cui, W. and Daniel, M. K. and Eisch, J. D. and Falcone, Abe and Feng, Q. and Fernandez-Alonso, M. and Finley, J. P. and Fleischhack, H. and Flinders, A. and Fortson, L. and Furniss, A. and Gillanders, G. H. and Griffin, S. and Grube, J. and Huetten, M. and Hakansson, N. and Hanna, D. and Hervet, O. and Holder, J. and Hughes, G. and Humensky, T. B. and Johnson, C. A. and Kaaret, P. and Kar, P. and Kelley-Hoskins, N. and Kertzman, M. and Kieda, D. and Krause, M. and Krennrich, F. and Kumar, S. and Lang, M. J. and Maier, G. and McArthur, S. and McCann, A. and Meagher, K. and Moriarty, P. and Mukherjee, R. and Nguyen, T. and Nieto, D. and Ong, R. A. and Otte, A. N. and Park, N. and Petrashyk, A. and Pichel, A. and Pohl, Martin and Popkow, A. and Pueschel, Elisa and Quinn, J. and Ragan, K. and Reynolds, P. T. and Richards, G. T. and Roache, E. and Rovero, A. C. and Rulten, C. and Sadeh, I. and Santander, Marcos and Sembroski, G. H. and Shahinyan, K. and Telezhinsky, Igor O. and Tucci, J. V. and Tyler, J. and Wakely, S. P. and Weinstein, A. and Wilhelm, Alina and Williams, D. A.}, title = {Very-High-Energy gamma-Ray Observations of the Blazar 1ES 2344+514 with VERITAS}, series = {Monthly notices of the Royal Astronomical Society}, volume = {471}, journal = {Monthly notices of the Royal Astronomical Society}, publisher = {Oxford Univ. Press}, address = {Oxford}, issn = {0035-8711}, doi = {10.1093/mnras/stx1756}, pages = {2117 -- 2123}, year = {2017}, abstract = {We present very-high-energy gamma-ray observations of the BL Lac object 1ES 2344+514 taken by the Very Energetic Radiation Imaging Telescope Array System between 2007 and 2015. 1ES 2344+514 is detected with a statistical significance above the background of 20.8 sigma in 47.2 h (livetime) of observations, making this the most comprehensive very-high-energy study of 1ES 2344+514 to date. Using these observations, the temporal properties of 1ES 2344+514 are studied on short and long times-scales. We fit a constant-flux model to nightly and seasonally binned light curves and apply a fractional variability test to determine the stability of the source on different time-scales. We reject the constant-flux model for the 2007-2008 and 2014-2015 nightly binned light curves and for the long-term seasonally binned light curve at the > 3 sigma level. The spectra of the time-averaged emission before and after correction for attenuation by the extragalactic background light are obtained. The observed time-averaged spectrum above 200 GeV is satisfactorily fitted (x(2)/NDF = 7.89/6) by a power-law function with an index Gamma = 2.46 +/- 0.06(stat) +/- 0.20(sys) and extends to at least 8 TeV. The extragalactic-backgroundlight-deabsorbed spectrum is adequately fit (x(2)/NDF = 6.73/6) by a power-law function with an index Gamma = 2.15 +/- 0.06(stat) +/- 0.20(sys) while an F-test indicates that the power law with an exponential cut-off function provides a marginally better fit (x(2)/NDF = 2.56/5) at the 2.1 sigma level. The source location is found to be consistent with the published radio location and its spatial extent is consistent with a point source.}, language = {en} } @article{KayserMaturilliGrahametal.2017, author = {Kayser, Markus and Maturilli, Marion and Graham, Robert M. and Hudson, Stephen R. and Rinke, Annette and Cohen, Lana and Kim, Joo-Hong and Park, Sang-Jong and Moon, Woosok and Granskog, Mats A.}, title = {Vertical thermodynamic structure of the troposphere during the Norwegian young sea ICE expedition (N-ICE2015)}, series = {Journal of geophysical research-atmosheres}, volume = {122}, journal = {Journal of geophysical research-atmosheres}, number = {20}, publisher = {American Geophysical Union}, address = {Washington}, issn = {2169-897X}, doi = {10.1002/2016JD026089}, pages = {10855 -- 10872}, year = {2017}, abstract = {The Norwegian young sea ICE (N-ICE2015) expedition was designed to investigate the atmosphere-snow-ice-ocean interactions in the young and thin sea ice regime north of Svalbard. Radiosondes were launched twice daily during the expedition from January to June 2015. Here we use these upper air measurements to study the multiple cyclonic events observed during N-ICE2015 with respect to changes in the vertical thermodynamic structure, moisture content, and boundary layer characteristics. We provide statistics of temperature inversion characteristics, static stability, and boundary layer extent. During winter, when radiative cooling is most effective, we find the strongest impact of synoptic cyclones. Changes to thermodynamic characteristics of the boundary layer are associated with transitions between the radiatively "clear" and "opaque" atmospheric states. In spring, radiative fluxes warm the surface leading to lifted temperature inversions and a statically unstable boundary layer. Further, we compare the N-ICE2015 static stability distributions to corresponding profiles from ERA-Interim reanalysis, from the closest land station in the Arctic North Atlantic sector, Ny-Alesund, and to soundings from the SHEBA expedition (1997/1998). We find similar stability characteristics for N-ICE2015 and SHEBA throughout the troposphere, despite differences in location, sea ice thickness, and snow cover. For Ny-Alesund, we observe similar characteristics above 1000 m, while the topography and ice-free fjord surrounding Ny-Alesund generate great differences below. The long-term radiosonde record (1993-2014) from Ny-Alesund indicates that during the N-ICE2015 spring period, temperatures were close to the climatological mean, while the lowest 3000 m were 1-3 degrees C warmer than the climatology during winter. Plain Language Summary The Norwegian young sea ICE (N-ICE2015) expedition was designed to investigate the atmosphere-snow-ice-ocean interactions in the young and thin sea ice regime north of Svalbard. Radiosondes were launched twice daily during the expedition from January to June 2015. Here we use these upper air measurements to study the multiple cyclonic events observed during N-ICE2015 with respect to changes in the vertical thermodynamic structure, moisture content, and the atmospheric boundary layer characteristics. During winter, we find the strongest impact of synoptic cyclones, which transport warm and moist air into the cold and dry Arctic atmosphere. In spring, incoming solar radiation warms the surface. This leads to very different thermodynamic conditions and higher moisture content, which reduces the contrast between stormy and calm periods. Further, we compare the N-ICE2015 measurements to corresponding profiles from ERA-Interim reanalysis, from the closest land station in the Arctic North Atlantic sector, Ny-Alesund, and to soundings from the SHEBA expedition (1997/1998). We find similar stability characteristics for N-ICE2015 and SHEBA throughout the troposphere, despite differences in location, sea ice thickness, and snow cover. The comparisons highlight the value of the N-ICE2015 observation and show the importance of winter time observations in the Arctic North Atlantic sector.}, language = {en} } @article{JaumannNassBamberg2017, author = {Jaumann, Ralf and Naß, Andrea and Bamberg, Marlene}, title = {Vermessung im Sonnensystem}, series = {Potsdamer Geographische Praxis}, journal = {Potsdamer Geographische Praxis}, number = {12}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, organization = {Fachgruppe Geoinformatik des Institutes f{\"u}r Geographie der Universit{\"a}t Potsdam}, isbn = {978-3-86956-389-3}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-103466}, pages = {101 -- 120}, year = {2017}, abstract = {Die bisherigen Missionen ins Sonnensystem lieferten eine enorme F{\"u}lle an Daten in unterschiedlichen Formaten und in Form von Bildern und digitalen Messergebnissen. Die Oberfl{\"a}chenprozesse der planetaren K{\"o}rper, die mit Hilfe dieser Daten erforscht werden k{\"o}nnen, sind {\"a}ußerst vielf{\"a}ltig und reichen von Einschlagskratern {\"u}ber Vulkanismus und Tektonik zu allen Formen der Erosion und Sedimentation. Um diese Prozesse verstehen zu k{\"o}nnen werden Verfahren angewendet, die f{\"u}r die Datenanalyse auf der Erde entwickelt wurden. Allerdings ist es notwendig all diese Verfahren zum Teil mit erheblichem Aufwand und unter Ber{\"u}cksichtigung der jeweiligen physikalischen Rahmenbedingungen anzupassen. Die Entwicklung kartographischer Verfahren zur Abstraktion der hier angesprochenen Informationen, also die Erfassung, geomorphologische Analyse und Visualisierung planetarer Oberfl{\"a}chen und Prozesse, hat jedoch gerade erst begonnen. Um diese Entwicklungen voranzutreiben, hat das Deutsche Zentrum f{\"u}r Luft- und Raumfahrt in Kooperation mit der Universit{\"a}t Potsdam (Institut f{\"u}r Geographie, Fachgruppe Geoinformatik, Prof. Dr. Asche), im Rahmen von Dissertationen und Forschungsvorhaben, in einem ersten Schritt kartographische Analyseverfahren f{\"u}r den Mars und die Asteroiden Ceres und Vesta entwickelt.}, language = {de} } @phdthesis{Yang2017, author = {Yang, Lei}, title = {Verification of systemic mRNAs mobility and mobile functions}, school = {Universit{\"a}t Potsdam}, pages = {125}, year = {2017}, language = {en} } @article{SchulzeDiehl2017, author = {Schulze, G{\"o}tz and Diehl, Yannick}, title = {Verbraucherschleusung im T{\"u}rkeiurlaub}, series = {studere : Rechtszeitschrift der Universit{\"a}t Potsdam}, volume = {2017}, journal = {studere : Rechtszeitschrift der Universit{\"a}t Potsdam}, number = {18}, publisher = {studere e.V.}, address = {Potsdam}, issn = {1867-6170}, pages = {44 -- 49}, year = {2017}, language = {de} } @article{WieseOncuBracker2017, author = {Wiese, Heike and Oncu, Mehmet Tahir and Bracker, Philip}, title = {Verb-third-position in Turkish-German Language Contact}, series = {Deutsche Sprache : ds ; Zeitschrift f{\"u}r Theorie, Praxis, Dokumentation}, volume = {45}, journal = {Deutsche Sprache : ds ; Zeitschrift f{\"u}r Theorie, Praxis, Dokumentation}, number = {1}, publisher = {Erich Schmidt}, address = {Berlin}, issn = {0340-9341}, pages = {31 -- 52}, year = {2017}, abstract = {In present-day German we find new word order options, particularly well-known from Turkish-German bilingual speakers in the contexts of new urban dialects, which allow violations of the canonical verb-second position in independent declarative clauses. In these cases, two positions are occupied in the forefield in front of the finite verb, usually by an adverbial and a subject, which identify, at the level of information structure, frame-setter and topic, respectively. Our study investigates the influence of verbal versus language -independent information-structural preferences for this linearisation, comparing Turkish-German multilingual speakers who have grown up in Germany with monolingual German and Turkish speakers. For tasks, in which grammatical restrictions were largely minimised, the results indicate a general tendency to place verbs in a position after the frame-setter and the topic; in addition, we found language-specific influences that distinguish Turkish-German and monolingual German speakers from monolingual Turkish ones. We interpret this as evidence for an information-structural motivation for verb-third, and for a clear dominance of German for Turkish-German speakers in Germany.}, language = {en} }