@article{Gailing2024, author = {Gailing, Ludger}, title = {Regionalplanung - und die Kommunalwissenschaften}, series = {Kommunalwissenschaften an der Universit{\"a}t Potsdam (KWI-Schriften ; 15)}, journal = {Kommunalwissenschaften an der Universit{\"a}t Potsdam (KWI-Schriften ; 15)}, number = {15}, editor = {Schmidt, Thorsten Ingo and Bickenbach, Christian and Gronewold, Ulfert and Kuhlmann, Sabine and Ulrich, Peter}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-581-1}, issn = {1867-951X}, doi = {10.25932/publishup-64789}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647899}, pages = {111 -- 120}, year = {2024}, language = {de} } @article{Tessmann2024, author = {Tessmann, Jens}, title = {Organisationsvarianten kommunaler Selbstverwaltung in Deutschland}, series = {Kommunalwissenschaften an der Universit{\"a}t Potsdam (KWI-Schriften ; 15)}, journal = {Kommunalwissenschaften an der Universit{\"a}t Potsdam (KWI-Schriften ; 15)}, number = {15}, editor = {Schmidt, Thorsten Ingo and Bickenbach, Christian and Gronewold, Ulfert and Kuhlmann, Sabine and Ulrich, Peter}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-581-1}, issn = {1867-951X}, doi = {10.25932/publishup-64786}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647869}, pages = {79 -- 85}, year = {2024}, language = {de} } @article{Krzymuski2024, author = {Krzymuski, Marcin}, title = {Ph{\"a}nomen des Kollisionsrechts im Verwaltungsrecht?}, series = {Kommunalwissenschaften an der Universit{\"a}t Potsdam (KWI-Schriften ; 15)}, journal = {Kommunalwissenschaften an der Universit{\"a}t Potsdam (KWI-Schriften ; 15)}, number = {15}, editor = {Schmidt, Thorsten Ingo and Bickenbach, Christian and Gronewold, Ulfert and Kuhlmann, Sabine and Ulrich, Peter}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-581-1}, issn = {1867-951X}, doi = {10.25932/publishup-64791}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647912}, pages = {121 -- 124}, year = {2024}, language = {de} } @phdthesis{Ketzer2024, author = {Ketzer, Laura}, title = {The impact of stellar activity evolution on atmospheric mass loss of young exoplanets}, doi = {10.25932/publishup-62681}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-626819}, school = {Universit{\"a}t Potsdam}, pages = {x, 208}, year = {2024}, abstract = {The increasing number of known exoplanets raises questions about their demographics and the mechanisms that shape planets into how we observe them today. Young planets in close-in orbits are exposed to harsh environments due to the host star being magnetically highly active, which results in high X-ray and extreme UV fluxes impinging on the planet. Prolonged exposure to this intense photoionizing radiation can cause planetary atmospheres to heat up, expand and escape into space via a hydrodynamic escape process known as photoevaporation. For super-Earth and sub-Neptune-type planets, this can even lead to the complete erosion of their primordial gaseous atmospheres. A factor of interest for this particular mass-loss process is the activity evolution of the host star. Stellar rotation, which drives the dynamo and with it the magnetic activity of a star, changes significantly over the stellar lifetime. This strongly affects the amount of high-energy radiation received by a planet as stars age. At a young age, planets still host warm and extended envelopes, making them particularly susceptible to atmospheric evaporation. Especially in the first gigayear, when X-ray and UV levels can be 100 - 10,000 times higher than for the present-day sun, the characteristics of the host star and the detailed evolution of its high-energy emission are of importance. In this thesis, I study the impact of stellar activity evolution on the high-energy-induced atmospheric mass loss of young exoplanets. The PLATYPOS code was developed as part of this thesis to calculate photoevaporative mass-loss rates over time. The code, which couples parameterized planetary mass-radius relations with an analytical hydrodynamic escape model, was used, together with Chandra and eROSITA X-ray observations, to investigate the future mass loss of the two young multiplanet systems V1298 Tau and K2-198. Further, in a numerical ensemble study, the effect of a realistic spread of activity tracks on the small-planet radius gap was investigated for the first time. The works in this thesis show that for individual systems, in particular if planetary masses are unconstrained, the difference between a young host star following a low-activity track vs. a high-activity one can have major implications: the exact shape of the activity evolution can determine whether a planet can hold on to some of its atmosphere, or completely loses its envelope, leaving only the bare rocky core behind. For an ensemble of simulated planets, an observationally-motivated distribution of activity tracks does not substantially change the final radius distribution at ages of several gigayears. My simulations indicate that the overall shape and slope of the resulting small-planet radius gap is not significantly affected by the spread in stellar activity tracks. However, it can account for a certain scattering or fuzziness observed in and around the radius gap of the observed exoplanet population.}, language = {en} } @article{CorbettSiegelThulin2024, author = {Corbett, Tim and Siegel, Bj{\"o}rn and Thulin, Mirjam}, title = {Towards Pluricultural and Connected Histories}, series = {PaRDeS}, journal = {PaRDeS}, number = {29}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-574-3}, issn = {1614-6492}, doi = {10.25932/publishup-64598}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645988}, pages = {15 -- 27}, year = {2024}, language = {en} } @article{Hoedl2024, author = {H{\"o}dl, Klaus}, title = {Blurring the Boundaries of Jewishness}, series = {PaRDeS}, journal = {PaRDeS}, number = {29}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-574-3}, issn = {1614-6492}, doi = {10.25932/publishup-64600}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646009}, pages = {39 -- 50}, year = {2024}, abstract = {In this essay I argue that while research in Jewish studies over the last several decades has done much to erode the historical narrative of Jewish/non-Jewish separation and detachment, it has also raised various questions pertaining to the outcome of Jewish/non-Jewish interactions and coexistence as well as the contours of Jewish difference. I contend that employing the concepts of conviviality, ethnic/religious/national indifference, and similarity will greatly facilitate answering these questions.}, language = {en} } @article{Csaky2024, author = {Cs{\´a}ky, Moritz}, title = {Habsburg Central Europe}, series = {PaRDeS}, journal = {PaRDeS}, number = {29}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-574-3}, issn = {1614-6492}, doi = {10.25932/publishup-64599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645995}, pages = {31 -- 37}, year = {2024}, abstract = {Central Europe is characterized by linguistic and cultural density as well as by endogenous and exogenous cultural influences. These constellations were especially visible in the former Habsburg Empire, where they influenced the formation of individual and collective identities. This led not only to continual crises and conflicts, but also to an equally enormous creative potential as became apparent in the culture of the fin-de-si{\`e}cle.}, language = {en} }