@article{KasperMarienberg2024, author = {Kasper-Marienberg, Verena}, title = {Imperial Transition and Early Modern Jewish Continuities}, 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-65022}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-650224}, pages = {53 -- 66}, year = {2024}, abstract = {This article brings two seemingly disconnected historiographic models of periodization into conversation: Habsburg studies and Habsburg Jewish studies. It argues for an expansion of the temporal frameworks of both fields to highlight historical continuities connecting the Holy Roman and Habsburg Empire at least from a structural perspective. These historical continuums are a useful analytical lens when applied to marginalized groups, like early modern Jews, in tandem with a central group of contemporary powerholders, such as the Habsburg nobility. Using Bohemia as a case study, this essay juxtaposes questions of transregional transfer of cultural, economic, and social capital with the challenges of Jewish marginalization and discrimination to highlight the changing yet interconnected imperial landscapes.}, language = {en} } @phdthesis{Fischer2024, author = {Fischer, Florian}, title = {Hardy inequalities on graphs}, doi = {10.25932/publishup-64773}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647730}, school = {Universit{\"a}t Potsdam}, pages = {vi, 160}, year = {2024}, abstract = {Die Dissertation befasst sich mit einer zentralen Ungleichung der nicht-linearen Potentialtheorie, der Hardy-Ungleichung. Sie besagt, dass das nicht-lineare Energiefunktional von unten durch eine p-te Potenz einer gewichteten p-Norm abgesch{\"a}tzt werden kann, p>1. Das Energiefunktional besteht dabei aus einem Divergenz- und einem beliebigen Potentialteil. Als zugrundeliegender Raum wurden hier lokal summierbare unendliche Graphen gew{\"a}hlt. Bisherige Ver{\"o}ffentlichungen zu Hardy-Ungleichungen auf Graphen haben vor allem den Spezialfall p=2 betrachtet, oder lokal endliche Graphen ohne Potentialteil. Zwei grundlegende Fragestellungen ergeben sich nun ganz nat{\"u}rlich: F{\"u}r welche Graphen gibt {\"u}berhaupt es eine Hardy-Ungleichung? Und, wenn es sie gibt, gibt es einen Weg um ein optimales Gewicht zu erhalten? Antworten auf diese Fragen werden in Theorem 10.1 und Theorem 12.1 gegeben. Theorem 10.1 gibt eine Reihe an Charakterisierungen an; unter anderem gibt es eine Hardy-Ungleichung auf einem Graphen genau dann, wenn es eine Greensche Funktion gibt. Theorem 12.1 gibt eine explizite Formel an, um optimale Hardy-Gewichte f{\"u}r lokal endliche Graphen unter einigen technischen Zusatzannahmen zu berechnen. In Beispielen wird gezeigt, dass Greensche Funktionen gute Kandidaten sind um in die Formel eingesetzt zu werden. Um diese beiden Theoreme beweisen zu k{\"o}nnen, m{\"u}ssen eine Vielzahl an Techniken erarbeitet werden, welche in den ersten Kapiteln behandelt werden. Dabei sind eine Verallgemeinerung der Grundzustandstransformation (Theorem 4.1), ein Agmon-Allegretto-Piepenbrink-artiges Resultat (Theorem 6.1) und das Vergleichsprinzip (Proposition 7.3) besonders hervorzuheben, da diese Resultate sehr h{\"a}ufig angewendet werden und somit das Fundament der Dissertation bilden. Es wird zudem darauf Wert gelegt die Theorie durch Beispiele zu veranschaulichen. Hierbei wird der Fokus auf die nat{\"u}rlichen Zahlen, Euklidische Gitter, B{\"a}ume und Sterne gelegt. Als Abschluss werden noch eine nicht-lineare Version der Heisenbergschen Unsch{\"a}rferelation und eine Rellich-Ungleichung aus der Hardy-Ungleichung geschlussfolgert.}, language = {en} } @phdthesis{Hempel2024, author = {Hempel, Elisabeth}, title = {Resolving the evolutionary history of two hippotragin antelopes using archival and ancient DNA}, doi = {10.25932/publishup-64771}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647718}, school = {Universit{\"a}t Potsdam}, pages = {xii, 224}, year = {2024}, abstract = {African antelopes are iconic but surprisingly understudied in terms of their genetics, especially when it comes to their evolutionary history and genetic diversity. The age of genomics provides an opportunity to investigate evolution using whole nuclear genomes. Decreasing sequencing costs enable the recovery of multiple loci per genome, giving more power to single specimen analyses and providing higher resolution insights into species and populations that can help guide conservation efforts. This age of genomics has only recently begun for African antelopes. Many African bovids have a declining population trend and hence, are often endangered. Consequently, contemporary samples from the wild are often hard to collect. In these cases, ex situ samples from contemporary captive populations or in the form of archival or ancient DNA (aDNA) from historical museum or archaeological/paleontological specimens present a great research opportunity with the latter two even offering a window to information about the past. However, the recovery of aDNA is still considered challenging from regions with prevailing climatic conditions that are deemed adverse for DNA preservation like the African continent. This raises the question if DNA recovery from fossils as old as the early Holocene from these regions is possible. This thesis focuses on investigating the evolutionary history and genetic diversity of two species: the addax (Addax nasomaculatus) and the blue antelope (Hippotragus leucophaeus). The addax is critically endangered and might even already be extinct in the wild, while the blue antelope became extinct ~1800 AD, becoming the first extinct large African mammal species in historical times. Together, the addax and the blue antelope can inform us about current and past extinction events and the knowledge gained can help guide conservation efforts of threatened species. The three studies used ex situ samples and present the first nuclear whole genome data for both species. The addax study used historical museum specimens and a contemporary sample from a captive population. The two studies on the blue antelope used mainly historical museum specimens but also fossils, and resulted in the recovery of the oldest paleogenome from Africa at that time. The aim of the first study was to assess the genetic diversity and the evolutionary history of the addax. It found that the historical wild addax population showed only limited phylogeographic structuring, indicating that the addax was a highly mobile and panmictic population and suggesting that the current European captive population might be missing the majority of the historical mitochondrial diversity. It also found the nuclear and mitochondrial diversity in the addax to be rather low compared to other wild ungulate species. Suggestions on how to best save the remaining genetic diversity are presented. The European zoo population was shown to exhibit no or only minor levels of inbreeding, indicating good prospects for the restoration of the species in the wild. The trajectory of the addax's effective population size indicated a major bottleneck in the late Pleistocene and a low effective population size well before recent human impact led to the species being critically endangered today. The second study set out to investigate the identities of historical blue antelope specimens using aDNA techniques. Results showed that six out of ten investigated specimens were misidentified, demonstrating the blue antelope to be one of the scarcest mammal species in historical natural history collections, with almost no bone reference material. The preliminary analysis of the mitochondrial genomes suggested a low diversity and hence low population size at the time of the European colonization of southern Africa. Study three presents the results of the analyses of two blue antelope nuclear genomes, one ~200 years old and another dating to the early Holocene, 9,800-9,300 cal years BP. A fossil-calibrated phylogeny dated the divergence time of the three historically extant Hippotragus species to ~2.86 Ma and demonstrated the blue and the sable antelope (H. niger) to be sister species. In addition, ancient gene flow from the roan (H. equinus) into the blue antelope was detected. A comparison with the roan and the sable antelope indicated that the blue antelope had a much lower nuclear diversity, suggesting a low population size since at least the early Holocene. This concurs with findings from the fossil record that show a considerable decline in abundance after the Pleistocene-Holocene transition. Moreover, it suggests that the blue antelope persisted throughout the Holocene regardless of a low population size, indicating that human impact in the colonial era was a major factor in the blue antelope's extinction. This thesis uses aDNA analyses to provide deeper insights into the evolutionary history and genetic diversity of the addax and the blue antelope. Human impact likely was the main driver of extinction in the blue antelope, and is likely the main factor threatening the addax today. This thesis demonstrates the value of ex situ samples for science and conservation, and suggests to include genetic data for conservation assessments of species. It further demonstrates the beneficial use of aDNA for the taxonomic identification of historically important specimens in natural history collections. Finally, the successful retrieval of a paleogenome from the early Holocene of Africa using shotgun sequencing shows that DNA retrieval from samples of that age is possible from regions generally deemed unfavorable for DNA preservation, opening up new research opportunities. All three studies enhance our knowledge of African antelopes, contributing to the general understanding of African large mammal evolution and to the conservation of these and similarly threatened species.}, language = {en} } @phdthesis{Aral2024, author = {Aral, Tuğ{\c{c}}e}, title = {Socialization and development of racial knowledge among youth in inequitable societies}, doi = {10.25932/publishup-64855}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-648559}, school = {Universit{\"a}t Potsdam}, pages = {175}, year = {2024}, abstract = {Background: Societies worldwide have become more diverse yet continue to be inequitable. Understanding how youth growing up in these societies are socialized and consequently develop racial knowledge has important implications not only for their well-being but also for building more just societies. Importantly, there is a lack of research on these topics in Germany and Europe in general. Aim and Method: The overarching aim of the dissertation is to investigate 1) where and how ethnic-racial socialization (ERS) happens in inequitable societies and 2) how it relates to youth's development of racial knowledge, which comprises racial beliefs (e.g., prejudice, attitudes), behaviors (e.g., actions preserving or disrupting inequities), and identities (e.g., inclusive, cultural). Guided by developmental, cultural, and ecological theories of socialization and development, I first explored how family, as a crucial socialization context, contributes to the preservation or disruption of racism and xenophobia in inequitable societies through its influence on children's racial beliefs and behaviors. I conducted a literature review and developed a conceptual model bridging research on ethnic-racial socialization and intergroup relations (Study 1). After documenting the lack of research on socialization and development of racial knowledge within and beyond family contexts outside of the U.S., I conducted a qualitative study to explore ERS in Germany through the lens of racially marginalized youth (Study 2). Then, I conducted two quantitative studies to explore the separate and interacting relations of multiple (i.e., family, school) socialization contexts for the development of racial beliefs and behaviors (Study 3), and identities (Studies 3, 4) in Germany. Participants of Study 2 were 26 young adults (aged between 19 and 32) of Turkish, Kurdish, East, and Southeast Asian heritage living across different cities in Germany. Study 3 was conducted with 503 eighth graders of immigrant and non-immigrant descent (Mage = 13.67) in Berlin, Study 4 included 311 early to mid-adolescents of immigrant descent (Mage= 13.85) in North Rhine-Westphalia with diverse cultural backgrounds. Results and Conclusion: The findings revealed that privileged or marginalized positions of families in relation to their ethnic-racial and religious background in society entail differential experiences and thus are an important determining factor for the content/process of socialization and development of youth's racial knowledge. Until recently, ERS research mostly focused on investigating how racially marginalized families have been the sources of support for their children in resisting racism and how racially privileged families contribute to transmission of information upholding racism (Study 1). ERS for racially marginalized youth in Germany centered heritage culture, discrimination, and resistance strategies to racism, yet resistance strategies transmitted to youth mostly help to survive racism (e.g., working hard) by upholding it instead of liberating themselves from racism by disrupting it (e.g., self-advocacy, Study 2). Furthermore, when families and schools foster heritage and intercultural learning, both contexts may separately promote stronger identification with heritage culture and German identities, and more prosocial intentions towards disadvantaged groups (i.e., refugees) among youth (Studies 3, 4). However, equal treatment in the school context led to mixed results: equal treatment was either unrelated to inclusive identity, or positively related to German and negatively related to heritage culture identities (Studies 3, 4). Additionally, youth receiving messages highlighting strained and preferential intergroup relations at home while attending schools promoting assimilation may develop a stronger heritage culture identity (Study 4). In conclusion, ERS happened across various social contexts (i.e., family, community centers, school, neighborhood, peer). ERS promoting heritage and intercultural learning, at least in one social context (family or school), might foster youth's racial knowledge manifesting in stronger belonging to multiple cultures and in prosocial intentions toward disadvantaged groups. However, there is a need for ERS targeting increasing awareness of discrimination across social contexts of youth and teaching youth resistance strategies for liberation from racism.}, language = {en} } @phdthesis{Martin2024, author = {Martin, Johannes}, title = {Synthesis of protein-polymer conjugates and block copolymers via sortase-mediated ligation}, doi = {10.25932/publishup-64566}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645669}, school = {Universit{\"a}t Potsdam}, pages = {XVII, 150}, year = {2024}, abstract = {In den vergangenen Jahrzehnten haben therapeutische Proteine in der pharmazeutischen Industrie mehr und mehr an Bedeutung gewonnen. Werden Proteine nichtmenschlichen Ursprungs verwendet, kann es jedoch zu einer Immunreaktion kommen, sodass das Protein sehr schnell aus dem K{\"o}rper ausgeschieden oder abgebaut wird. Um die Zirkulationszeit im Blut signifikant zu verl{\"a}ngern, werden die Proteine mit synthetischen Polymeren modifiziert (Protein-Polymer-Konjugate). Die Proteine aller heute auf dem Markt erh{\"a}ltlichen Medikamente dieser Art tragen eine oder mehrere Polymerketten aus Poly(ethylenglycol) (PEG). Ein Nachteil der PEGylierung ist, dass viele Patienten bei regelm{\"a}ßiger Einnahme dieser Medikamente Antik{\"o}rper gegen PEG entwickeln, die den effizienzsteigernden Effekt der PEGylierung wieder aufheben. Ein weiterer Nachteil der PEGylierung ist die oftmals deutlich verringerte Aktivit{\"a}t der Konjugate im Vergleich zum nativen Protein. Der Grund daf{\"u}r ist die Herstellungsmethode der Konjugate, bei der meist die prim{\"a}ren Amine der Lysin-Seitenketten und der N-Terminus des Proteins genutzt werden. Da die meisten Proteine mehrere gut zug{\"a}ngliche Lysine aufweisen, werden oft unterschiedliche und teilweise mehrere Lysine mit PEG funktionalisiert, was zu einer Mischung an Regioisomeren f{\"u}hrt. Je nach Position der PEG-Kette kann das aktive Zentrum abgeschirmt oder die 3D-Struktur des Proteins ver{\"a}ndert werden, was zu einem teilweise drastischen Aktivit{\"a}tsabfall f{\"u}hrt. In dieser Arbeit wurde eine neuartige Methode zur Ligation von Makromolek{\"u}len untersucht. Die Verwendung eines Enzyms als Katalysator zur Verbindung zweier Makromolek{\"u}le ist bisher wenig untersucht und ineffizient. Als Enzym wurde Sortase A ausgew{\"a}hlt, eine gut untersuchte Ligase aus der Familie der Transpeptidasen, welche die Ligation zweier Peptide katalysieren kann. Ein Nachteil dieser Sortase-vermittelten Ligation ist, dass es sich um eine Gleichgewichtsreaktion handelt, wodurch hohe Ausbeuten schwierig zu erreichen sind. Im Rahmen dieser Dissertation wurden zwei zuvor entwickelte Methoden zur Verschiebung des Gleichgewichts ohne Einsatz eines großen {\"U}berschusses von einem Edukt f{\"u}r Makromolek{\"u}le {\"u}berpr{\"u}ft. Zur Durchf{\"u}hrung der Sortase-vermittelten Ligation werden zwei komplement{\"a}re Peptidsequenzen verwendet, die Erkennungssequenz und das Nukleophil. Um eine systematische Untersuchung durchf{\"u}hren zu k{\"o}nnen, wurden alle n{\"o}tigen Bausteine (Protein-Erkennungssequenz zur Reaktion mit Nukleophil-Polymer und Polymer-Erkennungssequenz mit Nukleophil-Protein) hergestellt. Als Polymerisationstechnik wurde die radikalische Polymerisation mit reversibler Deaktivierung (im Detail, Atom Transfer Radical Polymerization, ATRP und Reversible Addition-Fragmentation Chain Transfer, RAFT polymerization) gew{\"a}hlt, um eine enge Molmassenverteilung zu erreichen. Die Herstellung der Bausteine begann mit der Synthese der Peptide via automatisierter Festphasen-Peptidsynthese, um eine einfache {\"A}nderung der Peptidsequenz zu gew{\"a}hrleisten und um eine Modifizierung der Polymerkette nach der Polymerisation zu umgehen. Um die ben{\"o}tigte unterschiedliche Funktionalit{\"a}t der zwei Peptidsequenzen (freier C-Terminus bei der Erkennungssequenz bzw. freier N-Terminus bei dem Nukleophil) zu erreichen, wurden verschiedene Linker zwischen Harz und Peptid verwendet. Danach wurde der Ketten{\"u}bertr{\"a}ger (chain transfer agent, CTA) zur Kontrolle der Polymerisation mit dem auf dem Harz befindlichen Peptid gekoppelt. Die f{\"u}r die anschließende Polymerisation verwendeten Monomere basierten auf Acrylamiden und Acrylaten und wurden anhand ihrer Eignung als Alternativen zu PEG ausgew{\"a}hlt. Es wurde eine k{\"u}rzlich entwickelte Technik basierend auf der RAFT-Polymerisation (xanthate-supported photo-iniferter RAFT, XPI-RAFT) verwendet um eine Reihe an Peptid-Polymeren mit unterschiedlichen Molekulargewichten und engen Molekulargewichtsverteilungen herzustellen. Nach Entfernung der Schutzgruppen der Peptid-Seitenketten wurden die Peptid-Polymere zun{\"a}chst genutzt, um mittels Sortase-vermittelter Ligation zwei Polymerketten zu einem Blockcopolymer zu verbinden. Unter Verwendung von Ni2+-Ionen in Kombination mit einer Verl{\"a}ngerung der Erkennungssequenz um ein Histidin zur Unterdr{\"u}ckung der R{\"u}ckreaktion konnte ein maximaler Umsatz von 70 \% erreicht werden. Dabei zeigte sich ein oberes Limit von durchschnittlich 100 Wiederholungseinheiten; die Ligation von l{\"a}ngeren Polymeren war nicht erfolgreich. Danach wurden ein Modellprotein und ein Nanobody mit vielversprechenden medizinischen Eigenschaften mit den f{\"u}r die enzymkatalysierte Ligation ben{\"o}tigten Peptidsequenzen f{\"u}r die Kopplung mit den zuvor hergestellten Peptid-Polymeren verwendet. Dabei konnte bei Verwendung des Modellproteins keine Bildung von Protein-Polymer-Konjugaten beobachtet werden. Der Nanobody konnte dagegen C-terminal mit einem Polymer funktionalisiert werden. Dabei wurde eine {\"a}hnliche Limitierung in der Polymer-Kettenl{\"a}nge beobachtet wie zuvor. Die auf Ni-Ionen basierte Strategie zur Gleichgewichtsverschiebung hatte hier keinen ausschlaggebenden Effekt, w{\"a}hrend die Verwendung von einem {\"U}berschuss an Polymer zur vollst{\"a}ndigen Umsetzung des Edukt-Nanobody f{\"u}hrte. Die erhaltenen Daten aus diesem Projekt bilden eine gute Basis f{\"u}r weitere Forschung in dem vielversprechenden Feld der enzymkatalysierten Herstellung von Protein-Polymer-Konjugaten und Blockcopolymeren. Langfristig k{\"o}nnte diese Herangehensweise eine vielseitig einsetzbare Herstellungsmethode von ortsspezifischen therapeutischen Protein-Polymer Konjugaten darstellen, welche sowohl eine hohe Aktivit{\"a}t als auch eine lange Zirkulationszeit im Blut aufweisen.}, language = {en} } @article{Zielnica2024, author = {Zielnica, Krzystof}, title = {Alexander von Humboldt und Polen - zum 150. Jahrestag seiner Reise nach Warschau}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XXV}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {48}, editor = {Ette, Ottmar and Knobloch, Eberhard}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, doi = {10.18443/368}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646635}, pages = {87 -- 101}, year = {2024}, abstract = {Zuerst erschienen in: Alexander von Humboldt-Stiftung. Mitteilungen, 5. Jg., Heft 38, Oktober 1980, S. 27-36.}, language = {en} } @article{Kutzinski2024, author = {Kutzinski, Vera M.}, title = {Off-road adventures}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XXV}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {48}, editor = {Ette, Ottmar and Knobloch, Eberhard}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, doi = {10.18443/367}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646601}, pages = {65 -- 86}, year = {2024}, abstract = {This article focuses on the visual qualities of Alexander von Humboldt's statistical tables in his Political Essay on the Kingdom of New Spain (1808-1811, 2nd ed. 1825-1827) with special attention to how such composites of numbers, alphabetical script, and semiotic elements relate to narrative writing. I argue that Humboldt's tables/tableaus open up spaces inside his narrative that fragment the reading process, inviting new conversations, connections, and ideas.}, language = {en} } @article{Kraft2024, author = {Kraft, Tobias}, title = {Neue Quellen zu Humboldts Kuba-Forschung. Das „Digitale Dossier" des Proyecto Humboldt Digital (2019-2023)}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XXV}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {48}, editor = {Ette, Ottmar and Knobloch, Eberhard}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, doi = {10.18443/373}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646592}, pages = {25 -- 64}, year = {2024}, abstract = {Die deutsch-kubanische Forschungs- und Digitalisierungsinitiative „Proyecto Humboldt Digital" (ProHD) hat w{\"a}hrend ihrer Projektlaufzeit (2019-2023) wichtige Quellen zum Thema „Humboldt und Kuba" erstmals digital erschlossen. Als Kooperation zwischen der Berlin-Brandenburgischen Akademie der Wissenschaften und der Oficina del Historiador de la Ciudad de La Habana hat ProHD damit wichtige Akzente f{\"u}r die Archivdigitalisierung, die digitale Editionsphilologie und die digitale Wissenschaftskommunikation in Kuba gesetzt. Das Korpus der erschlossenen Best{\"a}nde wird hier in f{\"u}nf Schlaglichtern vorgestellt: 1) Quellen zur Humboldt'schen Forschungsreise, 2) Juan Luis de la Cuesta, 3) Materialien zu Kuba aus dem Humboldt-Nachlass, 4) Zensur und Beschlagnahme des Essai politique sur l'{\^i}le de Cuba, 5) Francisco de Arango y Parre{\~n}o.}, language = {de} } @article{Gao2024, author = {Gao, Hong}, title = {Nachgedanken zur {\"U}bersetzung des ersten Bandes von Humboldts „Kosmos"}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XXV}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {48}, editor = {Ette, Ottmar and Knobloch, Eberhard}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, doi = {10.18443/371}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646569}, pages = {17 -- 24}, year = {2024}, abstract = {La traduction en langue chinoise du premier volume du monumental ouvrage scientifique d'Alexander von Humboldt, intitul{\´e} «Cosmos», a vu le jour en 2023 sous l՚{\´e}gide de la prestigieuse maison d՚{\´e}dition de l՚Universit{\´e} de P{\´e}kin. Dans sa postface {\´e}clair{\´e}e, la traductrice {\´e}m{\´e}rite, Gao Hong, {\´e}claire la lanterne des lecteurs chinois sur la fresque cosmique esquiss{\´e}e par Humboldt, r{\´e}v{\´e}lant ainsi les intrications entre les ph{\´e}nom{\`e}nes naturels et leur pertinence {\`a} l՚{\´e}chelle de l'univers tout entier. Gao Hong narre son propre p{\´e}riple aux c{\^o}t{\´e}s de Humboldt, tout en distillant ses r{\´e}flexions personnelles sur cette fresque cosmique. «Cosmos» d՚Humboldt, œuvre scientifique par excellence, transcende {\´e}galement les sph{\`e}res esth{\´e}tiques et artistiques, exprimant invariablement une profonde v{\´e}n{\´e}ration pour l՚univers. Restituer en chinois la «beaut{\´e} g{\´e}om{\´e}trique» de la langue allemande, empreinte d՚une rigueur structurelle, constitue un d{\´e}fi singulier, le chinois se caract{\´e}risant par sa fluidit{\´e}, sa souplesse et sa po{\´e}sie imag{\´e}e, en totale antith{\`e}se avec l՚allemand. En qualit{\´e} de traducteur, il importe de naviguer librement entre ces deux mondes linguistiques distincts.}, language = {de} } @article{EtteSchwarz2024, author = {Ette, Ottmar and Schwarz, Ingo}, title = {„Ein junges, neues Geschlecht wird besseres liefern als das alte". Ein Empfehlungsbrief Alexander von Humboldts f{\"u}r Carl Ludwig}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XXV}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {48}, editor = {Ette, Ottmar and Knobloch, Eberhard}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, doi = {10.18443/370}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646552}, pages = {5 -- 15}, year = {2024}, abstract = {In dem Aufsatz wird ein Brief erstmalig ver{\"o}ffentlicht, in dem Alexander von Humboldt im Jahr 1849 bei einem Minister der liberalen Regierung von Kurhessen die Verdienste eines an der Universit{\"a}t in Marburg lehrenden jungen Professors hervorhob. Die Rede ist hier von dem sp{\"a}ter durch bahnbrechende Entdeckungen ber{\"u}hmten Physiologen Carl Ludwig. Vermittelt wurde das Schreiben durch den Humboldt nahestehenden Mediziner und Physiologen Emil du Bois-Reymond. Der Empfehlungsbrief, mit dem Humboldt versuchte, Ludwigs finanzielle Situation zu verbessern, ist ein Beispiel f{\"u}r die F{\"o}rderung junger Forscher wie auch freier wissenschaftlicher Institutionen durch Humboldt.}, 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} } @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{KernKochskaemper2024, author = {Kern, Kristine and Kochsk{\"a}mper, Elisa}, title = {Wege zur urbanen Transformation}, 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-64788}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647882}, pages = {101 -- 109}, year = {2024}, language = {de} } @article{Maass2024, author = {Maaß, Christian}, title = {Brandenburg, (k)ein Land der Reformen?}, 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-64787}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647878}, pages = {87 -- 98}, 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{Reichard2024, author = {Reichard, Christoph}, title = {Der kommunale Produkthaushalt - Zwischenbilanz nach 20 Jahren}, 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-64785}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647856}, pages = {73 -- 78}, year = {2024}, language = {de} } @article{FranzkeKuhlmannPeters2024, author = {Franzke, Jochen and Kuhlmann, Sabine and Peters, Niklas}, title = {Krisen-Governance im europ{\"a}ischen Vergleich}, 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-64784}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647843}, pages = {59 -- 71}, year = {2024}, language = {de} } @article{Bickenbach2024, author = {Bickenbach, Christian}, title = {Gedanken zum Klimaschutz- und Klimaanpassungsrecht auf kommunaler Ebene}, 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-64783}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647833}, pages = {47 -- 58}, year = {2024}, language = {de} } @article{Wagner2024, author = {Wagner, Dieter}, title = {Personalmanagement und KWI}, 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-64782}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647820}, pages = {41 -- 44}, year = {2024}, language = {de} } @article{Bauer2024, author = {Bauer, Hartmut}, title = {Die Strahlkraft des Kommunalwissenschaftlichen Instituts im Spiegel der KWI-Schriften}, 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-64759}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647593}, pages = {31 -- 40}, year = {2024}, language = {de} } @phdthesis{Adam2024, author = {Adam, Jan P.}, title = {Top-Management-Support und die Digitalisierung von Verwaltungsleistungen}, doi = {10.25932/publishup-64713}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647132}, school = {Universit{\"a}t Potsdam}, pages = {xii, 250}, year = {2024}, abstract = {Digitalization is a key component of current administrative reforms. Despite its high importance and long-standing efforts, the balance of administrative digitalization in Germany remains ambivalent. This study investigates the influencing factors on the implementation of digitalization projects in public administration, with a special focus on the role of top management support. This study focuses on three successful digitalization projects from the German Online Access Act (OZG) and analyzes, using problem-centered expert interviews, the influencing factors on the implementation of OZG projects and the role of management in this process. The analysis is theoretically grounded and based on the approach of bounded rationality and the economic theory of bureaucracy. The results suggest that the identified influencing factors affect the reusability and maturity level of administrative services differently and can be interpreted as consequences of bounded rationality in the human problem-solving process. Managers influence the bounded rationality of operational actors by implementing appropriate strategies in the support of their implementation tasks. This includes providing resources, contributing their expertise, making information accessible, changing decision-making pathways, and contributing to conflict resolution. The study provides valuable insights into actual management practices and derives recommendations for the implementation of public digitalization projects and the management of public administrations. This study makes an important contribution to understanding the influence of management in digitalization. It also underscores the need for further research in this area to better understand the practices and challenges of administrative digitalization and to effectively address them.}, language = {de} } @article{Jann2024, author = {Jann, Werner}, title = {Gibt es eine Kommunalwissenschaft? - eine ewige Geschichte}, 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-64758}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647584}, pages = {23 -- 29}, year = {2024}, language = {de} } @phdthesis{Pregla2024, author = {Pregla, Andreas}, title = {Word order variability in OV languages}, doi = {10.25932/publishup-64363}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-643636}, school = {Universit{\"a}t Potsdam}, pages = {xv, 265}, year = {2024}, abstract = {This thesis explores word order variability in verb-final languages. Verb-final languages have a reputation for a high amount of word order variability. However, that reputation amounts to an urban myth due to a lack of systematic investigation. This thesis provides such a systematic investigation by presenting original data from several verb-final languages with a focus on four Uralic ones: Estonian, Udmurt, Meadow Mari, and South S{\´a}mi. As with every urban myth, there is a kernel of truth in that many unrelated verb-final languages share a particular kind of word order variability, A-scrambling, in which the fronted elements do not receive a special information-structural role, such as topic or contrastive focus. That word order variability goes hand in hand with placing focussed phrases further to the right in the position directly in front of the verb. Variations on this pattern are exemplified by Uyghur, Standard Dargwa, Eastern Armenian, and three of the Uralic languages, Estonian, Udmurt, and Meadow Mari. So far for the kernel of truth, but the fourth Uralic language, South S{\´a}mi, is comparably rigid and does not feature this particular kind of word order variability. Further such comparably rigid, non-scrambling verb-final languages are Dutch, Afrikaans, Amharic, and Korean. In contrast to scrambling languages, non-scrambling languages feature obligatory subject movement, causing word order rigidity next to other typical EPP effects. The EPP is a defining feature of South S{\´a}mi clause structure in general. South S{\´a}mi exhibits a one-of-a-kind alternation between SOV and SAuxOV order that is captured by the assumption of the EPP and obligatory movement of auxiliaries but not lexical verbs. Other languages that allow for SAuxOV order either lack an alternation because the auxiliary is obligatorily present (Macro-Sudan SAuxOVX languages), or feature an alternation between SVO and SAuxOV (Kru languages; V2 with underlying OV as a fringe case). In the SVO-SAuxOV languages, both auxiliaries and lexical verbs move. Hence, South S{\´a}mi shows that the textbook difference between the VO languages English and French, whether verb movement is restricted to auxiliaries, also extends to OV languages. SAuxOV languages are an outlier among OV languages in general but are united by the presence of the EPP. Word order variability is not restricted to the preverbal field in verb-final languages, as most of them feature postverbal elements (PVE). PVE challenge the notion of verb-finality in a language. Strictly verb-final languages without any clause-internal PVE are rare. This thesis charts the first structural and descriptive typology of PVE. Verb-final languages vary in the categories they allow as PVE. Allowing for non-oblique PVE is a pivotal threshold: when non-oblique PVE are allowed, PVE can be used for information-structural effects. Many areally and genetically unrelated languages only allow for given PVE but differ in whether the PVE are contrastive. In those languages, verb-finality is not at stake since verb-medial orders are marked. In contrast, the Uralic languages Estonian and Udmurt allow for any PVE, including information focus. Verb-medial orders can be used in the same contexts as verb-final orders without semantic and pragmatic differences. As such, verb placement is subject to actual free variation. The underlying verb-finality of Estonian and Udmurt can only be inferred from a range of diagnostics indicating optional verb movement in both languages. In general, it is not possible to account for PVE with a uniform analysis: rightwards merge, leftward verb movement, and rightwards phrasal movement are required to capture the cross- and intralinguistic variation. Knowing that a language is verb-final does not allow one to draw conclusions about word order variability in that language. There are patterns of homogeneity, such as the word order variability driven by directly preverbal focus and the givenness of postverbal elements, but those are not brought about by verb-finality alone. Preverbal word order variability is restricted by the more abstract property of obligatory subject movement, whereas the determinant of postverbal word order variability has to be determined in the future.}, language = {en} } @phdthesis{Haskamp2024, author = {Haskamp, Thomas}, title = {Products design organizations}, doi = {10.25932/publishup-64695}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646954}, school = {Universit{\"a}t Potsdam}, pages = {IX, 148}, year = {2024}, abstract = {The automotive industry is a prime example of digital technologies reshaping mobility. Connected, autonomous, shared, and electric (CASE) trends lead to new emerging players that threaten existing industrial-aged companies. To respond, incumbents need to bridge the gap between contrasting product architecture and organizational principles in the physical and digital realms. Over-the-air (OTA) technology, that enables seamless software updates and on-demand feature additions for customers, is an example of CASE-driven digital product innovation. Through an extensive longitudinal case study of an OTA initiative by an industrial- aged automaker, this dissertation explores how incumbents accomplish digital product innovation. Building on modularity, liminality, and the mirroring hypothesis, it presents a process model that explains the triggers, mechanisms, and outcomes of this process. In contrast to the literature, the findings emphasize the primacy of addressing product architecture challenges over organizational ones and highlight the managerial implications for success.}, language = {en} } @phdthesis{Wojcik2024, author = {Wojcik, Laurie Anne Myriam}, title = {Beyond a single diversity facet: implications for the links between biodiversity, environmental changes and ecosystem functioning}, doi = {10.25932/publishup-64692}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646925}, school = {Universit{\"a}t Potsdam}, pages = {vi, 189}, year = {2024}, abstract = {Human activities modify nature worldwide via changes in the environment, biodiversity and the functioning of ecosystems, which in turn disrupt ecosystem services and feed back negatively on humans. A pressing challenge is thus to limit our impact on nature, and this requires detailed understanding of the interconnections between the environment, biodiversity and ecosystem functioning. These three components of ecosystems each include multiple dimensions, which interact with each other in different ways, but we lack a comprehensive picture of their interconnections and underlying mechanisms. Notably, diversity is often viewed as a single facet, namely species diversity, while many more facets exist at different levels of biological organisation (e.g. genetic, phenotypic, functional, multitrophic diversity), and multiple diversity facets together constitute the raw material for adaptation to environmental changes and shape ecosystem functioning. Consequently, investigating the multidimensionality of ecosystems, and in particular the links between multifaceted diversity, environmental changes and ecosystem functions, is crucial for ecological research, management and conservation. This thesis aims to explore several aspects of this question theoretically. I investigate three broad topics in this thesis. First, I focus on how food webs with varying levels of functional diversity across three trophic levels buffer environmental changes, such as a sudden addition of nutrients or long-term changes (e.g. warming or eutrophication). I observed that functional diversity generally enhanced ecological stability (i.e. the buffering capacity of the food web) by increasing trophic coupling. More precisely, two aspects of ecological stability (resistance and resilience) increased even though a third aspect (the inverse of the time required for the system to reach its post-perturbation state) decreased with increasing functional diversity. Second, I explore how several diversity facets served as a raw material for different sources of adaptation and how these sources affected multiple ecosystem functions across two trophic levels. Considering several sources of adaptation enabled the interplay between ecological and evolutionary processes, which affected trophic coupling and thereby ecosystem functioning. Third, I reflect further on the multifaceted nature of diversity by developing an index K able to quantify the facet of functional diversity, which is itself multifaceted. K can provide a comprehensive picture of functional diversity and is a rather good predictor of ecosystem functioning. Finally I synthesise the interdependent mechanisms (complementarity and selection effects, trophic coupling and adaptation) underlying the relationships between multifaceted diversity, ecosystem functioning and the environment, and discuss the generalisation of my findings across ecosystems and further perspectives towards elaborating an operational biodiversity-ecosystem functioning framework for research and conservation.}, language = {en} } @phdthesis{Lagodzinski2024, author = {Lagodzinski, Julius Albert Gregor}, title = {Counting homomorphisms over fields of prime order}, doi = {10.25932/publishup-64603}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646037}, school = {Universit{\"a}t Potsdam}, pages = {xii, 240}, year = {2024}, abstract = {Homomorphisms are a fundamental concept in mathematics expressing the similarity of structures. They provide a framework that captures many of the central problems of computer science with close ties to various other fields of science. Thus, many studies over the last four decades have been devoted to the algorithmic complexity of homomorphism problems. Despite their generality, it has been found that non-uniform homomorphism problems, where the target structure is fixed, frequently feature complexity dichotomies. Exploring the limits of these dichotomies represents the common goal of this line of research. We investigate the problem of counting homomorphisms to a fixed structure over a finite field of prime order and its algorithmic complexity. Our emphasis is on graph homomorphisms and the resulting problem \#_{p}Hom[H] for a graph H and a prime p. The main research question is how counting over a finite field of prime order affects the complexity. In the first part of this thesis, we tackle the research question in its generality and develop a framework for studying the complexity of counting problems based on category theory. In the absence of problem-specific details, results in the language of category theory provide a clear picture of the properties needed and highlight common ground between different branches of science. The proposed problem \#Mor^{C}[B] of counting the number of morphisms to a fixed object B of C is abstract in nature and encompasses important problems like constraint satisfaction problems, which serve as a leading example for all our results. We find explanations and generalizations for a plethora of results in counting complexity. Our main technical result is that specific matrices of morphism counts are non-singular. The strength of this result lies in its algebraic nature. First, our proofs rely on carefully constructed systems of linear equations, which we know to be uniquely solvable. Second, by exchanging the field that the matrix is defined by to a finite field of order p, we obtain analogous results for modular counting. For the latter, cancellations are implied by automorphisms of order p, but intriguingly we find that these present the only obstacle to translating our results from exact counting to modular counting. If we restrict our attention to reduced objects without automorphisms of order p, we obtain results analogue to those for exact counting. This is underscored by a confluent reduction that allows this restriction by constructing a reduced object for any given object. We emphasize the strength of the categorial perspective by applying the duality principle, which yields immediate consequences for the dual problem of counting the number of morphisms from a fixed object. In the second part of this thesis, we focus on graphs and the problem \#_{p}Hom[H]. We conjecture that automorphisms of order p capture all possible cancellations and that, for a reduced graph H, the problem \#_{p}Hom[H] features the complexity dichotomy analogue to the one given for exact counting by Dyer and Greenhill. This serves as a generalization of the conjecture by Faben and Jerrum for the modulus 2. The criterion for tractability is that H is a collection of complete bipartite and reflexive complete graphs. From the findings of part one, we show that the conjectured dichotomy implies dichotomies for all quantum homomorphism problems, in particular counting vertex surjective homomorphisms and compactions modulo p. Since the tractable cases in the dichotomy are solved by trivial computations, the study of the intractable cases remains. As an initial problem in a series of reductions capable of implying hardness, we employ the problem of counting weighted independent sets in a bipartite graph modulo prime p. A dichotomy for this problem is shown, stating that the trivial cases occurring when a weight is congruent modulo p to 0 are the only tractable cases. We reduce the possible structure of H to the bipartite case by a reduction to the restricted homomorphism problem \#_{p}Hom^{bip}[H] of counting modulo p the number of homomorphisms between bipartite graphs that maintain a given order of bipartition. This reduction does not have an impact on the accessibility of the technical results, thanks to the generality of the findings of part one. In order to prove the conjecture, it suffices to show that for a connected bipartite graph that is not complete, \#_{p}Hom^{bip}[H] is \#_{p}P-hard. Through a rigorous structural study of bipartite graphs, we establish this result for the rich class of bipartite graphs that are (K_{3,3}\{e}, domino)-free. This overcomes in particular the substantial hurdle imposed by squares, which leads us to explore the global structure of H and prove the existence of explicit structures that imply hardness.}, language = {en} } @phdthesis{Felisatti2024, author = {Felisatti, Arianna}, title = {Spatial-numerical associations: From biological foundations to embodied learning to contextual flexibility}, doi = {10.25932/publishup-64179}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-641791}, school = {Universit{\"a}t Potsdam}, pages = {x, 195}, year = {2024}, abstract = {Among the different meanings carried by numerical information, cardinality is fundamental for survival and for the development of basic as well as of higher numerical skills. Importantly, the human brain inherits from evolution a predisposition to map cardinality onto space, as revealed by the presence of spatial-numerical associations (SNAs) in humans and animals. Here, the mapping of cardinal information onto physical space is addressed as a hallmark signature characterizing numerical cognition. According to traditional approaches, cognition is defined as complex forms of internal information processing, taking place in the brain (cognitive processor). On the contrary, embodied cognition approaches define cognition as functionally linked to perception and action, in the continuous interaction between a biological body and its physical and sociocultural environment. Embracing the principles of the embodied cognition perspective, I conducted four novel studies designed to unveil how SNAs originate, develop, and adapt, depending on characteristics of the organism, the context, and their interaction. I structured my doctoral thesis in three levels. At the grounded level (Study 1), I unfold the biological foundations underlying the tendency to map cardinal information across space; at the embodied level (Study 2), I reveal the impact of atypical motor development on the construction of SNAs; at the situated level (Study 3), I document the joint influence of visuospatial attention and task properties on SNAs. Furthermore, I experimentally investigate the presence of associations between physical and numerical distance, another numerical property fundamental for the development of efficient mathematical minds (Study 4). In Study 1, I present the Brain's Asymmetric Frequency Tuning hypothesis that relies on hemispheric asymmetries for processing spatial frequencies, a low-level visual feature that the (in)vertebrate brain extracts from any visual scene to create a coherent percept of the world. Computational analyses of the power spectra of the original stimuli used to document the presence of SNAs in human newborns and animals, support the brain's asymmetric frequency tuning as a theoretical account and as an evolutionarily inherited mechanism scaffolding the universal and innate tendency to represent cardinality across horizontal space. In Study 2, I explore SNAs in children with rare genetic neuromuscular diseases: spinal muscular atrophy (SMA) and Duchenne muscular dystrophy (DMD). SMA children never accomplish independent motoric exploration of their environment; in contrast, DMD children do explore but later lose this ability. The different SNAs reported by the two groups support the critical role of early sensorimotor experiences in the spatial representation of cardinality. In Study 3, I directly compare the effects of overt attentional orientation during explicit and implicit processing of numerical magnitude. First, the different effects of attentional orienting based on the type of assessment support different mechanisms underlying SNAs during explicit and implicit assessment of numerical magnitude. Secondly, the impact of vertical shifts of attention on the processing of numerical distance sheds light on the correspondence between numerical distance and peri-personal distance. In Study 4, I document the presence of different SNAs, driven by numerical magnitude and numerical distance, by employing different response mappings (left vs. right and near vs. distant). In the field of numerical cognition, the four studies included in the present thesis contribute to unveiling how the characteristics of the organism and the environment influence the emergence, the development, and the flexibility of our attitude to represent cardinal information across space, thus supporting the predictions of the embodied cognition approach. Furthermore, they inform a taxonomy of body-centred factors (biological properties of the brain and sensorimotor system) modulating the spatial representation of cardinality throughout the course of life, at the grounded, embodied, and situated levels. If the awareness for different variables influencing SNAs over the course of life is important, it is equally important to consider the organism as a whole in its sensorimotor interaction with the world. Inspired by my doctoral research, here I propose a holistic perspective that considers the role of evolution, embodiment, and environment in the association of cardinal information with directional space. The new perspective advances the current approaches to SNAs, both at the conceptual and at the methodological levels. Unveiling how the mental representation of cardinality emerges, develops, and adapts is necessary to shape efficient mathematical minds and achieve economic productivity, technological progress, and a higher quality of life.}, language = {en} } @article{UlrichBuechnerFranzke2024, author = {Ulrich, Peter and B{\"u}chner, Christiane and Franzke, Jochen}, title = {Grundlagen und Grundfragen der Kommunalwissenschaft(en) an der Universit{\"a}t Potsdam}, 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-64754}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647542}, pages = {9 -- 20}, year = {2024}, language = {de} } @book{Suter2024, author = {Suter, Bernhard}, title = {Gestaltungsprozesse im Musikunterricht anleiten}, series = {Potsdamer Schriftenreihe zur Musikp{\"a}dagogik}, journal = {Potsdamer Schriftenreihe zur Musikp{\"a}dagogik}, number = {10}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-567-5}, issn = {1861-8529}, doi = {10.25932/publishup-60052}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-600523}, publisher = {Universit{\"a}t Potsdam}, pages = {334}, year = {2024}, abstract = {«Musik erfinden und gestalten» hat grosses musikpädagogisches Potenzial: mit Kl{\"a}ngen experimentieren, ein Gesp{\"u}r f{\"u}r dramaturgische Verl{\"a}ufe entwickeln, nonverbal kommunizieren - Musik erfinden und gestalten er{\"o}ffnet ein breites Feld musikalischer Aktivit{\"a}ten und Erfahrungsmöglichkeiten. Doch im regul{\"a}ren Musikunterricht in der Volksschule der Schweiz sind produktionsdidaktische Ans{\"a}tze noch eher die Ausnahme und Musiklehrkr{\"a}ften fehlt es an Anleitungsstrategien. F{\"u}r das vorliegende Buch untersuchte der Autor in Form einer Design-based-Research-Studie, wie Primarlehrkr{\"a}fte ihre Anleitungsstrategien bei der Durchf{\"u}hrung von musikalischen Gestaltungsprozessen in ihren Schulklassen schrittweise entwickeln. Dabei begleitete der Forscher die Lehrkr{\"a}fte in der schulischen Praxis und intervenierte gezielt mit Reflexionsimpulsen, um den Professionalisierungsprozess zu unterst{\"u}tzen. Daraus wurden drei Reflexionstools generiert: Das Reflexionstool try-outs beinhaltet konkrete Handlungsanregungen und Reflexionsfragen f{\"u}r das Anleiten musikalischer Gestaltungsprozesse. Das Onlinetool improspider ist ein Selbstreflexionsinstrument zur Einsch{\"a}tzung personaler Orientierungen. Das Kompetenzmodell Kompetenzflyer bietet eine Reflexionsfolie f{\"u}r die Ansteuerung eigenst{\"a}ndiger Kompetenzerwerbsschritte. Die Reflexionstools sind außerdem online in Form eines Lernobjekts verf{\"u}gbar.}, language = {de} } @phdthesis{Rasche2024, author = {Rasche, Daniel}, title = {Cosmic-ray neutron sensing for the estimation of soil moisture}, doi = {10.25932/publishup-63646}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-636465}, school = {Universit{\"a}t Potsdam}, pages = {xvi, 194}, year = {2024}, abstract = {Water stored in the unsaturated soil as soil moisture is a key component of the hydrological cycle influencing numerous hydrological processes including hydrometeorological extremes. Soil moisture influences flood generation processes and during droughts when precipitation is absent, it provides plant with transpirable water, thereby sustaining plant growth and survival in agriculture and natural ecosystems. Soil moisture stored in deeper soil layers e.g. below 100 cm is of particular importance for providing plant transpirable water during dry periods. Not being directly connected to the atmosphere and located outside soil layers with the highest root densities, water in these layers is less susceptible to be rapidly evaporated and transpired. Instead, it provides longer-term soil water storage increasing the drought tolerance of plants and ecosystems. Given the importance of soil moisture in the context of hydro-meteorological extremes in a warming climate, its monitoring is part of official national adaption strategies to a changing climate. Yet, soil moisture is highly variable in time and space which challenges its monitoring on spatio-temporal scales relevant for flood and drought risk modelling and forecasting. Introduced over a decade ago, Cosmic-Ray Neutron Sensing (CRNS) is a noninvasive geophysical method that allows for the estimation of soil moisture at relevant spatio-temporal scales of several hectares at a high, subdaily temporal resolution. CRNS relies on the detection of secondary neutrons above the soil surface which are produced from high-energy cosmic-ray particles in the atmosphere and the ground. Neutrons in a specific epithermal energy range are sensitive to the amount of hydrogen present in the surroundings of the CRNS neutron detector. Due to same mass as the hydrogen nucleus, neutrons lose kinetic energy upon collision and are subsequently absorbed when reaching low, thermal energies. A higher amount of hydrogen therefore leads to fewer neutrons being detected per unit time. Assuming that the largest amount of hydrogen is stored in most terrestrial ecosystems as soil moisture, changes of soil moisture can be estimated through an inverse relationship with observed neutron intensities. Although important scientific advancements have been made to improve the methodological framework of CRNS, several open challenges remain, of which some are addressed in the scope of this thesis. These include the influence of atmospheric variables such as air pressure and absolute air humidity, as well as, the impact of variations in incoming primary cosmic-ray intensity on observed epithermal and thermal neutron signals and their correction. Recently introduced advanced neutron-to-soil moisture transfer functions are expected to improve CRNS-derived soil moisture estimates, but potential improvements need to be investigated at study sites with differing environmental conditions. Sites with strongly heterogeneous, patchy soil moisture distributions challenge existing transfer functions and further research is required to assess the impact of, and correction of derived soil moisture estimates under heterogeneous site conditions. Despite its capability of measuring representative averages of soil moisture at the field scale, CRNS lacks an integration depth below the first few decimetres of the soil. Given the importance of soil moisture also in deeper soil layers, increasing the observational window of CRNS through modelling approaches or in situ measurements is of high importance for hydrological monitoring applications. By addressing these challenges, this thesis aids to closing knowledge gaps and finding answers to some of the open questions in CRNS research. Influences of different environmental variables are quantified, correction approaches are being tested and developed. Neutron-to-soil moisture transfer functions are evaluated and approaches to reduce effects of heterogeneous soil moisture distributions are presented. Lastly, soil moisture estimates from larger soil depths are derived from CRNS through modified, simple modelling approaches and in situ estimates by using CRNS as a downhole technique. Thereby, this thesis does not only illustrate the potential of new, yet undiscovered applications of CRNS in future but also opens a new field of CRNS research. Consequently, this thesis advances the methodological framework of CRNS for above-ground and downhole applications. Although the necessity of further research in order to fully exploit the potential of CRNS needs to be emphasised, this thesis contributes to current hydrological research and not least to advancing hydrological monitoring approaches being of utmost importance in context of intensifying hydro-meteorological extremes in a changing climate.}, language = {en} } @phdthesis{Dronsella2024, author = {Dronsella, Beau B.}, title = {Overcoming natural biomass limitations in gram-negative bacteria through synthetic carbon fixation}, doi = {10.25932/publishup-64627}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646273}, school = {Universit{\"a}t Potsdam}, pages = {174}, year = {2024}, abstract = {The carbon demands of an ever-increasing human population and the concomitant rise in net carbon emissions requires CO2 sequestering approaches for production of carbon-containing molecules. Microbial production of carbon-containing products from plant-based sugars could replace current fossil-based production. However, this form of sugar-based microbial production directly competes with human food supply and natural ecosystems. Instead, one-carbon feedstocks derived from CO2 and renewable energy were proposed as an alternative. The one carbon molecule formate is a stable, readily soluble and safe-to-store energetic mediator that can be electrochemically generated from CO2 and (excess off-peak) renewable electricity. Formate-based microbial production could represent a promising approach for a circular carbon economy. However, easy-to-engineer and efficient formate-utilizing microbes are lacking. Multiple synthetic metabolic pathways were designed for better-than-nature carbon fixation. Among them, the reductive glycine pathway was proposed as the most efficient pathway for aerobic formate assimilation. While some of these pathways have been successfully engineered in microbial hosts, these synthetic strains did so far not exceed the performance of natural strains. In this work, I engineered and optimized two different synthetic formate assimilation pathways in gram-negative bacteria to exceed the limits of a natural carbon fixation pathway, the Calvin cycle. The first chapter solidified Cupriavidus necator as a promising formatotrophic host to produce value-added chemicals. The formate tolerance of C. necator was assessed and a production pathway for crotonate established in a modularized fashion. Last, bioprocess optimization was leveraged to produce crotonate from formate at a titer of 148 mg/L. In the second chapter, I chromosomally integrated and optimized the synthetic reductive glycine pathway in C. necator using a transposon-mediated selection approach. The insertion methodology allowed selection for condition-specific tailored pathway expression as improved pathway performance led to better growth. I then showed my engineered strains to exceed the biomass yields of the Calvin cycle utilizing wildtype C. necator on formate. This demonstrated for the first time the superiority of a synthetic formate assimilation pathway and by extension of synthetic carbon fixation efforts as a whole. In chapter 3, I engineered a segment of a synthetic carbon fixation cycle in Escherichia coli. The GED cycle was proposed as a Calvin cycle alternative that does not perform a wasteful oxygenation reaction and is more energy efficient. The pathways simple architecture and reasonable driving force made it a promising candidate for enhanced carbon fixation. I created a deletion strain that coupled growth to carboxylation via the GED pathway segment. The CO2 dependence of the engineered strain and 13C-tracer analysis confirmed operation of the pathway in vivo. In the final chapter, I present my efforts of implementing the GED cycle also in C. necator, which might be a better-suited host, as it is accustomed to formatotrophic and hydrogenotrophic growth. To provide the carboxylation substrate in vivo, I engineered C. necator to utilize xylose as carbon source and created a selection strain for carboxylase activity. I verify activity of the key enzyme, the carboxylase, in the decarboxylative direction. Although CO2-dependent growth of the strain was not obtained, I showed that all enzymes required for operation of the GED cycle are active in vivo in C. necator. I then evaluate my success with engineering a linear and cyclical one-carbon fixation pathway in two different microbial hosts. The linear reductive glycine pathway presents itself as a much simpler metabolic solution for formate dependent growth over the sophisticated establishment of hard-to-balance carbon fixation cycles. Last, I highlight advantages and disadvantages of C. necator as an upcoming microbial benchmark organism for synthetic metabolism efforts and give and outlook on its potential for the future of C1-based manufacturing.}, language = {en} } @misc{HornConradGuentherSeipetal.2024, author = {Horn-Conrad, Antje and G{\"u}nther, Oliver and Seip, Juliane and Zimmermann, Matthias and Schuster, Stefanie and Himmler, Lena and Liebig, Ference and Engel, Silke and Scholz, Jana and B{\"a}hnisch, Marianna and Brosius-Gersdorf, Frauke and Agrofylax, Luisa and Limbach, Oliver and Peter, Stefanie and Ramm, Lina Marie and Kampe, Heike and Mikulla, Stefanie}, title = {Portal Transfer 2024}, series = {Portal Transfer: Alumni- und Transfermagazin der Universit{\"a}t Potsdam}, journal = {Portal Transfer: Alumni- und Transfermagazin der Universit{\"a}t Potsdam}, number = {2024}, issn = {2747-6898}, doi = {10.25932/publishup-64698}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646984}, pages = {82}, year = {2024}, abstract = {Liebe Leserinnen und Leser, die eigene „Blase" verlassen, Perspektiven wechseln, Silo-Mentalit{\"a}t {\"u}berwinden - was der Wissenschaft in ihrem Innern gelingt, ja gelingen muss, um erfolgreich zu sein, stellt sie in ihrer Außenwirkung noch immer vor Herausforderungen. Dabei geh{\"o}rt es doch inzwischen zum Selbstverst{\"a}ndnis moderner Universit{\"a}ten, {\"o}ffentlich zu erkl{\"a}ren, woran in ihren R{\"a}umen geforscht wird, sich in gesellschaftliche Diskurse einzubringen und ihre Erkenntnisse z{\"u}gig in die Praxis zu {\"u}berf{\"u}hren. Die Universit{\"a}t Potsdam hat diese Transferaufgaben neben Lehre und Forschung als dritte S{\"a}ule installiert und ihrem Geb{\"a}ude damit noch mehr Stabilit{\"a}t verliehen. Seit Jahren geh{\"o}rt sie im nationalen Vergleich zu den erfolgreichsten Hochschulen, wenn es darum geht, Start-ups zu f{\"o}rdern und aus der Forschung heraus Unternehmen zu gr{\"u}nden: In diesem Magazin berichten wir von der Potassco Solutions GmbH des Informatikers Torsten Schaub, der mit seinem KI-System Clingo komplexe Optimierungsprobleme in Betrieben l{\"o}st. Oder von der SEQSTANT GmbH, die mit innovativer Diagnostik Erreger von Atemwegserkrankungen in Echtzeit bestimmen kann. Wir zeigen aber auch, wie Forschungsteams mit der Industrie kooperieren, zum Beispiel mit der K-UTEC im th{\"u}ringischen Sondershausen, um mit wissenschaftlichem Knowhow dazu beizutragen, dass dort in Produktionsabf{\"a}llen kein wertvolles Lithium verloren geht. Richtet sich der Technologietransfer vor allem an die Wirtschaft, so hilft der Wissenstransfer der gesamten Gesellschaft. Besonders stark ist die Universit{\"a}t Potsdam hier in der Bildung, denn mit ihren Lehramtsabsolventen schickt sie auch gleich den aktuellen Stand der Unterrichtsforschung in die Schulpraxis. Immer h{\"a}ufiger zieht dabei die Digitalisierung in die Klassenzimmer ein. Wie das gut gelingen kann, ist in diesem Magazin zu lesen. Zudem erkl{\"a}ren wir, was die Sportwissenschaft zur Therapie von Depressionen beitragen kann oder wie die Umweltforschung das Risikomanagement in von Hochwasser bedrohten Regionen verbessern will. Ob in {\"o}ffentlichen Verwaltungen oder politischen Institutionen - {\"u}berall ist wissenschaftliche Expertise gefragt. Wir zeigen das am Beispiel von Frauke Brosius-Gersdorf, die als Juristin die Bundesregierung zur Regulierung des Schwangerschaftsabbruchs ber{\"a}t. Der k{\"u}rzeste Weg des Wissens aus der Universit{\"a}t in die Praxis f{\"u}hrt zweifelsohne {\"u}ber die Alumni, die als Fach- und F{\"u}hrungskr{\"a}fte im Land und dar{\"u}ber hinaus wirksam werden. Dass dieser Weg schon w{\"a}hrend des Studiums beginnen kann, beweisen die vielen studentischen Initiativen, die hier zu Wort kommen. Sie alle scheuen nicht das Rampenlicht: ob bei Science Slams auf den B{\"u}hnen im Land Brandenburg, bei den TEDx-Talks im Hans Otto Theater, beim Kunst-Rundgang in der Potsdamer Waschhaus-Arena oder mit englischsprachigem Schauspiel an der Uni. {\"O}ffentlich in Erscheinung treten, neue Formen finden, um Wissen in die Breite der Bev{\"o}lkerung zu tragen - auch das geh{\"o}rt zum Transfer. Genau wie dieses Magazin.}, language = {de} } @misc{ZimmermannTjadenKampeetal.2024, author = {Zimmermann, Matthias and Tjaden, Jasper and Kampe, Heike and Scholz, Jana and Aust, Sarah-Madeleine and Himmler, Lena and Agrofylax, Luisa and Mey, J{\"u}rgen and Agarwal, Ankit and Nikoloski, Zoran and Mikulla, Stefanie and Horn-Conrad, Antje and Evans, Myfanwy}, title = {Portal Wissen = Education:Digital}, series = {Portal Wissen: The research magazine of the University of Potsdam}, journal = {Portal Wissen: The research magazine of the University of Potsdam}, number = {1/2024}, issn = {2198-9974}, doi = {10.25932/publishup-64697}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646977}, pages = {58}, year = {2024}, abstract = {Have you already swiped or liked this morning? Have you taken part in a video conference at work, used or programmed a database? Have you paid with your smartphone on the way home, listened to a podcast, or extended the lending of books you borrowed from the library? And in the evening, have you filled out your tax return application on ELSTER.de on your tablet, shopped online, or paid invoices before you were tempted to watch a series on a streaming platform? Our lives are entirely digitalized. These changes make many things faster, easier, and more efficient. But keeping pace with these changes demands a lot from us, and not everyone succeeds. There are people who prefer to go to the bank to make a transfer, leave the programming to the experts, send their tax return by mail, and only use their smartphone to make phone calls. They don't want to keep pace, or maybe they can't. They haven't learned these things. Others, younger people, grow up as "digital natives" surrounded by digital devices, tools, and processes. But does that mean they really know how to use them? Or do they also need digital education? But what does successful digital education actually look like? Does it teach us how to use a tablet, how to google properly, and how to write Excel spreadsheets? Perhaps it's about more than that. It's about understanding the comprehensive change that has been taking hold of our world since it was broken down into digital ones and zeros and rebuilt virtually. But how do we learn to live in a world of digitality - with all that it entails, and to our benefit? For the new issue of "Portal Wissen", we looked around at the university and interviewed researchers about the role that the connection between digitalization and learning plays in the research of various disciplines. We spoke to Katharina Scheiter, Professor of Digital Education, about the future of German schools and had several experts show us examples of how digital tools can improve learning in schools. We also talked to computer science and agricultural researchers about how even experienced farmers can still learn a lot about their land and their work thanks to digital tools. We spoke to educational researchers who are using big data to analyze how boys and girls learn and what the possible causes for differences are. Education and political scientist Nina Kolleck, on the other hand, looks at education against the backdrop of globalization and relies on the analysis of large amounts of social media data. Of course, we don't lose sight of the diversity of research at the University of Potsdam. We learn, for example, what alternatives to antibiotics could soon be available. This magazine also looks at stress and how it makes us ill as well as the research into sustainable ore extraction. A new feature of our magazine is a whole series of shorter articles that invite you to browse and read: from research news and photographic insights into laboratories to simple explanations of complex phenomena and outlooks into the wider world of research to a small scientific utopia and a personal thanks to research. All this in the name of education, of course. Enjoy your read!}, language = {en} } @misc{ScholzZimmermannHornConradetal.2024, author = {Scholz, Jana and Zimmermann, Matthias and Horn-Conrad, Antje and Himmler, Lena and Kampe, Heike and Aust, Sarah-Madeleine and Mikulla, Stefanie and Drews, Jakob and Klettke, Cornelia and Hafner, Johann Ev.}, title = {Portal = Welt retten}, number = {1}, issn = {1618-6893}, doi = {10.25932/publishup-64696}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-646963}, pages = {57}, year = {2024}, abstract = {Fragen beantworten, Unbekanntes erkl{\"a}ren, R{\"a}tsel l{\"o}sen - und die gewonnenen Erkenntnisse zum Nutzen der Menschheit einsetzen: Das treibt Wissenschaftler*innen auf der ganzen Welt an. Forschung ist keine Geheimwissenschaft, die im stillen K{\"a}mmerlein passiert. Sie dient im besten Fall allen. Sie funktioniert voraussetzungsfrei und ergebnisoffen, und gerade deshalb k{\"o}nnen Forschungsergebnisse notwendige Innovationen, Transformation oder Umdenken f{\"o}rdern und auf diese Weise die Welt ver{\"a}ndern. Zum Besseren, so die Hoffnung. F{\"u}r diese Ausgabe der „Portal" haben wir Universit{\"a}tspr{\"a}sident Prof. Oliver G{\"u}nther, Ph.D. und die {\"O}kologin Prof. Dr. Damaris Zurell gefragt, ob Wissenschaft die Welt retten kann. Sie sind sich einig: Forschung tr{\"a}gt dazu bei, dass viele Menschen ein lebenswertes und erf{\"u}lltes Leben f{\"u}hren k{\"o}nnen. Sie betonen aber auch: Wissenschaft kann das nicht allein erreichen, f{\"u}r echte Ver{\"a}nderungen braucht es Politik, Wirtschaft und Gesellschaft. Wie wichtig es ist, dass wissenschaftliche Erkenntnisse uns zum Handeln bewegen, davon erz{\"a}hlen auch die vielen anderen Geschichten in diesem Heft. Denn in Potsdam tragen nicht nur Wissenschaftler*innen, sondern auch Studierende und Besch{\"a}ftigte in Technik und Verwaltung dazu bei, die Universit{\"a}t, ihr Umfeld oder „die Welt da draußen" St{\"u}ck f{\"u}r St{\"u}ck besser zu machen. Jonathan Schorsch zum Beispiel, Professor f{\"u}r J{\"u}dische Religions- und Geistesgeschichte, hat den „Gr{\"u}nen Sabbat" ins Leben gerufen: einen Tag in der Woche, an dem wir der Erde - und uns selbst - eine kleine Pause g{\"o}nnen. Der Jurist Andreas Zimmermann berichtet von einem Verfahren vor dem Internationalen Gerichtshof zum Klimawandel, an dem er als Forscher beteiligt ist, und seine Kollegin Dr. Anna von Rebay k{\"a}mpft als Anw{\"a}ltin f{\"u}r die Rechte des Meeres vor Ausbeutung und Verschmutzung. Der Voltaire-Preistr{\"a}ger Gera Gizaw erz{\"a}hlt von einem Fl{\"u}chtlingscamp in Kenia aus die Geschichten der Menschen dort und der Medizinethiker Robert Ranisch zeigt, wie die Pflege k{\"u}nftig f{\"u}r noch mehr Wohl sorgen kann. Hochschulangeh{\"o}rige engagieren sich f{\"u}r den Bildungsaufstieg von Menschen aus nicht-akademischen Familien und der Student Tobias F{\"o}hl k{\"a}mpft bei ONE gegen Armut auf der Welt. Mitarbeiter aus der Musikwissenschaft verl{\"a}ngern das Leben von alten M{\"o}beln und Musikinstrumenten, Studierende arbeiten mit Jugendfeuerwehren aus der Region zusammen. Der Better World Award wirft ein Licht auf innovative Ideen, die schnellstm{\"o}glich ihren Weg aus der Uni in die {\"O}ffentlichkeit finden sollten. Wie wichtig die Kommunikation wissenschaftlicher Erkenntnisse ist, zeigen Julia Wandt und Kristin K{\"u}ter, die Menschen aus dem Wissenschaftsbetrieb beraten, die Anfeindungen ausgesetzt sind. Denn damit es vorangeht, damit L{\"o}sungen f{\"u}r Probleme dieser Welt gefunden werden, darf eines nicht geschehen: dass die Forschung verstummt.}, language = {de} } @phdthesis{Ranaee2022, author = {Ranaee, Mahdi}, title = {Skepticism}, doi = {10.25932/publishup-64565}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645652}, school = {Universit{\"a}t Potsdam}, pages = {164}, year = {2022}, abstract = {This dissertation offers new and original readings of three major texts in the history of Western philosophy: Descartes's "First Meditation," Kant's "Transcendental Deduction," and his "Refutation of Idealism." The book argues that each text addresses the problem of skepticism and posits that they have a hitherto underappreciated, organic relationship to one another. The dissertation begins with an analysis of Descartes' "First Meditation," which I argue offers two distinct and independent skeptical arguments that differ in both aim and scope. I call these arguments the "veil of ideas" argument and the "author of my origin" argument. My reading counters the standard interpretation of the text, which sees it as offering three stages of doubt, namely the occasional fallibility of the senses, the dream hypothesis, and the evil demon hypothesis. Building on this, the central argument of the dissertation is that Kant's "Transcendental Deduction" actually transforms and radicalizes Descartes's Author of My Origin argument, reconceiving its meaning within the framework of Kant's own transcendental idealist philosophy. Finally, I argue that the Refutation of Idealism offers a similarly radicalized version of Descartes's Veil of Ideas argument, albeit translated into the framework of transcendental idealism.}, language = {en} } @phdthesis{Blaser2024, author = {Blaser, Berenike Lisa}, title = {Premenstrual symptoms as a function of altered central autonomous nervous activity}, doi = {10.25932/publishup-64597}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645970}, school = {Universit{\"a}t Potsdam}, pages = {XII, 265}, year = {2024}, abstract = {The experience of premenstrual syndrome (PMS) affects up to 90\% of individuals with an active menstrual cycle and involves a spectrum of aversive physiological and psychological symptoms in the days leading up to menstruation (Tschudin et al., 2010). Despite its high prevalence, the precise origins of PMS remain elusive, with influences ranging from hormonal fluctuations to cognitive, social, and cultural factors (Hunter, 2007; Matsumoto et al., 2013). Biologically, hormonal fluctuations, particularly in gonadal steroids, are commonly believed to be implicated in PMS, with the central factor being varying susceptibilities to the fluctuations between individuals and cycles (Rapkin \& Akopians, 2012). Allopregnanolone (ALLO), a neuroactive steroid and progesterone metabolite, has emerged as a potential link to PMS symptoms (Hantsoo \& Epperson, 2020). ALLO is a positive allosteric modulator of the GABAA receptor, influencing inhibitory communication (Rupprecht, 2003; Andr{\´e}en et al., 2006). Different susceptibility to ALLO fluctuations throughout the cycle may lead to reduced GABAergic signal transmission during the luteal phase of the menstrual cycle. The GABAergic system's broad influence leads to a number of affected physiological systems, including a consistent reduction in vagally mediated heart rate variability (vmHRV) during the luteal phase (Schmalenberger et al., 2019). This reduction in vmHRV is more pronounced in individuals with high PMS symptoms (Baker et al., 2008; Matsumoto et al., 2007). Fear conditioning studies have shown inconsistent associations with cycle phases, suggesting a complex interplay between physiological parameters and PMS-related symptoms (Carpenter et al., 2022; Epperson et al., 2007; Milad et al., 2006). The neurovisceral integration model posits that vmHRV reflects the capacity of the central autonomous network (CAN), which is responsible for regulatory processes on behavioral, cognitive, and autonomous levels (Thayer \& Lane, 2000, 2009). Fear learning, mediated within the CAN, is suggested to be indicative of vmHRV's capacity for successful VI regulation (Battaglia \& Thayer, 2022). Given the GABAergic mediation of central inhibitory functional connectivity in the CAN, which may be affected by ALLO fluctuations, this thesis proposes that fluctuating CAN activity in the luteal phase contributes to diverse aversive symptoms in PMS. A research program was designed to empirically test these propositions. Study 1 investigated fear discrimination during different menstrual cycle phases and its interaction with vmHRV, revealing nuanced effects on acoustic startle response and skin conductance response. While there was heightened fear discrimination in acoustic startle responses in participants in the luteal phase, there was an interaction between menstrual cycle phase and vmHRV in skin conductance responses. In this measure, heightened fear discrimination during the luteal phase was only visible in individuals with high resting vmHRV; those with low vmHRV showed reduced fear discrimination and higher overall responses. Despite affecting the vast majority of menstruating people, there are very limited tools available to reliably assess these symptoms in the German speaking area. Study 2 aimed at closing this gap, by translating and validating a German version of the short version of the Premenstrual Assessment Form (Allen et al., 1991), providing a reliable tool for future investigations, which closes the gap in PMS questionnaires in the German-speaking research area. Study 3 employed a diary study paradigm to explore daily associations between vmHRV and PMS symptoms. The results showed clear simultaneous fluctuations between the two constructs with a peak in PMS and a low point in vmHRV a few days before menstruation onset. The association between vmHRV and PMS was driven by psychological PMS symptoms. Based on the theoretical considerations regarding the neurovisceral perspective on PMS, another interesting construct to consider is attentional control, as it is closely related to functions of the CAN. Study 4 delved into attentional control and vmHRV differences between menstrual cycle phases, demonstrating an interaction between cycle phase and PMS symptoms. In a pilot, we found reduced vmHRV and attentional control during the luteal phase only in participants who reported strong PMS. While Studies 1-4 provided evidence for the mechanisms underlying PMS, Studies 5 and 6 investigated short- and long-term intervention protocols to ameliorate PMS symptomatology. Study 5 explored the potential of heart rate variability biofeedback (HRVB) in alleviating PMS symptoms and a number of other outcome measures. In a waitlist-control design, participants underwent a 4-week smartphone-based HRVB intervention. The results revealed positive effects on PMS, with larger effect sizes on psychological symptoms, as well as on depressive symptoms, anxiety/stress and attentional control. Finally, Study 6 examined the acute effects of HRVB on attentional control. The study found positive impact but only in highly stressed individuals. The thesis, based on this comprehensive research program, expands our understanding of PMS as an outcome of CAN fluctuations mediated by GABAA receptor reactivity. The results largely support the model. These findings not only deepen our understanding of PMS but also offer potential avenues for therapeutic interventions. The promising results of smartphone-based HRVB training suggest a non-pharmacological approach to managing PMS symptoms, although further research is needed to confirm its efficacy. In conclusion, this thesis illuminates the complex web of factors contributing to PMS, providing valuable insights into its etiological underpinnings and potential interventions. By elucidating the relationships between hormonal fluctuations, CAN activity, and psychological responses, this research contributes to more effective treatments for individuals grappling with the challenges of PMS. The findings hold promise for improving the quality of life for those affected by this prevalent and often debilitating condition.}, language = {en} } @phdthesis{Poerschke2024, author = {P{\"o}rschke, Alexander}, title = {Koalitionsbildung und Gesetzgebung im Semi-Parlamentarismus}, doi = {10.25932/publishup-63449}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-634498}, school = {Universit{\"a}t Potsdam}, pages = {xvi, 265}, year = {2024}, abstract = {Der Semi-Parlamentarismus beschreibt das Regierungssystem, in dem die Regierung von einem Teil des Parlaments gew{\"a}hlt wird und abberufen werden kann, von einem anderen Teil des Parlaments aber unabh{\"a}ngig ist. Beide Kammern m{\"u}ssen dabei der Gesetzgebung zustimmen. Dieses von Steffen Ganghof klassifizierte System erg{\"a}nzt g{\"a}ngige Regierungssystemtypologien, wie sie beispielsweise von David Samuels und Matthew Shugart genutzt werden. Der Semi-Parlamentarismus ist der logische Gegenpart zum Semi-Pr{\"a}sidentialismus, bei dem nur ein Teil der Exekutive von der Legislative abh{\"a}ngt, w{\"a}hrend im Semi-Parlamentarismus die Exekutive von nur einem Teil der Legislative abh{\"a}ngt. Der Semi-Parlamentarismus verk{\"o}rpert so ein System der Gewaltenteilung ohne einen exekutiven Personalismus, wie er durch die Direktwahl und Unabh{\"a}ngigkeit der Regierungchef:in im Pr{\"a}sidentialismus hervorgerufen wird. Dadurch ist der Semi-Parlamentarismus geeignet, Unterschiede zwischen Parlamentarismus und Pr{\"a}sidentialismus auf den separaten Einfluss der Gewaltenteilung und des exekutiven Personalismus zur{\"u}ckzuf{\"u}hren. Die Untersuchung des Semi-Parlamentarismus ist daher f{\"u}r die Regierungssystemliteratur insgesamt von Bedeutung. Der Semi-Parlamentarismus ist dabei kein rein theoretisches Konstrukt, sondern existiert im australischen Bundesstaat, den australischen Substaaten und Japan. Die vorliegende Dissertation untersucht erstmals umfassend die Gesetzgebung der semi-parlamentarischen Staaten als solchen. Der Fokus liegt dabei auf den zweiten Kammern, da diese durch die Unabh{\"a}ngigkeit von der Regierung der eigentliche Ort der Gesetzgebung sind. Die Gesetzgebung in Parlamentarismus und Pr{\"a}sidentialismus unterscheidet sich insbesondere in der Geschlossenheit der Parteien, der Koalitionsbildung und dem legislativen Erfolg der Regierungen. Diese Punkte sind daher auch von besonderem Interesse bei der Analyse des Semi-Parlamentarismus. Die semi-parlamentarischen Staaten unterscheiden sich auch untereinander teilweise erheblich in der institutionellen Ausgestaltung wie den Wahlsystemen oder den verf{\"u}gbaren Mitteln zur {\"U}berwindung von Blockadesituationen. Die Darstellung und die Analyse der Auswirkungen dieser Unterschiede auf die Gesetzgebung ist neben dem Vergleich des Semi-Parlamentarismus mit anderen Systemen das zweite wesentliche Ziel dieser Arbeit. Als Fundament der Analyse habe ich einen umfangreichen Datensatz erhoben, der alle Legislaturperioden der australischen Staaten zwischen 1997 und 2019 umfasst. Wesentliche Bestandteile des Datensatzes sind alle namentlichen Abstimmungen beider Kammern, alle eingebrachten und verabschiedeten Gesetzen der Regierung sowie die mit Hilfe eines Expert-Surveys erhobenen Parteipositionen in den relevanten Politikfeldern auf substaatlicher Ebene. Haupts{\"a}chlich mit der Hilfe von Mixed-Effects- und Fractional-Response-Analysen kann ich so zeigen, dass der Semi-Parlamentarismus in vielen Aspekten eher parlamentarischen als pr{\"a}sidentiellen Systemen gleicht. Nur die Koalitionsbildung erfolgt deutlich flexibler und unterscheidet sich daher von der typischen parlamentarischen Koalitionsbildung. Die Analysen legen nahe, dass wesentliche Unterschiede zwischen Parlamentarismus und Pr{\"a}sidentialismus eher auf den exekutiven Personalismus als auf die Gewaltenteilung zur{\"u}ckzuf{\"u}hren sind. Zwischen den semi-parlamentarischen Staaten scheinen vor allem die Kontrolle des Medians beider Parlamentskammern durch die Regierung und die M{\"o}glichkeit der Regierung, die zweite Kammer mitaufzul{\"o}sen, zu entscheidenden Unterschieden in der Gesetzgebung zu f{\"u}hren. Die Kontrolle des Medians erm{\"o}glicht eine flexible Koalitionsbildung und f{\"u}hrt zu h{\"o}heren legislativen Erfolgsraten. Ebenso f{\"u}hrt eine m{\"o}glichst leichte Aufl{\"o}sungsm{\"o}glichkeit der zweiten Kammern zu h{\"o}heren legislativen Erfolgsraten. Die Parteigeschlossenheit ist unabh{\"a}ngig von diesen Aspekten in beiden Kammern der semi-parlamentarischen Parlamente sehr hoch.}, language = {de} } @book{SchmidtUlrichBuechneretal.2024, author = {Schmidt, Thorsten Ingo and Ulrich, Peter and B{\"u}chner, Christiane and Franzke, Jochen and Jann, Werner and Bauer, Hartmut and Wagner, Dieter and Br{\"u}ning, Christoph and Bickenbach, Christian and Kuhlmann, Sabine and Peters, Niklas and Reichard, Christoph and Tessmann, Jens and Maaß, Christian and Kern, Kristine and Kochsk{\"a}mper, Elisa and Gailing, Ludger and Krzymuski, Marcin}, title = {Kommunalwissenschaften an der Universit{\"a}t Potsdam}, series = {KWI-Schriften}, journal = {KWI-Schriften}, 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-63618}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-636180}, publisher = {Universit{\"a}t Potsdam}, pages = {124}, year = {2024}, abstract = {Zum dreißigj{\"a}hrigen Bestehen des Kommunalwissenschaftlichen Instituts an der Universit{\"a}t Potsdam vereint dieser Jubil{\"a}umsband kurze Aufs{\"a}tze von ehemaligen und aktuellen Vorstandsmitgliedern, von Ehrenmitgliedern des Vorstands, langj{\"a}hrigen wissenschaftlichen Mitarbeitern des Instituts und aktuellen wissenschaftlichen Kooperationspartnern. Die insgesamt zw{\"o}lf Beitr{\"a}ge befassen sich mit den Kommunalwissenschaften und der Geschichte des Kommunalwissenschaftlichen Instituts, mit aktuellen kommunalwissenschaftlichen Fragestellungen und wissenschaftlichen Kooperationen des KWI. Der vom KWI-Vorstand herausgegebene Band soll einen breiten Blick auf 30 Jahre Kommunalwissenschaften in Brandenburg und an der Universit{\"a}t Potsdam werfen und einen Ausblick auf zuk{\"u}nftige kommunalwissenschaftliche Forschung geben.}, language = {de} } @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} } @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} } @misc{StadlerBlock2024, author = {Stadler, Heike and Block, Vanessa}, title = {Publikationsaufkommen sichtbar machen}, doi = {10.25932/publishup-64569}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645693}, year = {2024}, abstract = {Das Poster wurde am 05.07.2024 im Rahmen des KOBV-Forum 2024 pr{\"a}sentiert.}, language = {de} } @phdthesis{Taleb2024, author = {Taleb, Aiham}, title = {Self-supervised deep learning methods for medical image analysis}, doi = {10.25932/publishup-64408}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-644089}, school = {Universit{\"a}t Potsdam}, pages = {xii, 171}, year = {2024}, abstract = {Deep learning has seen widespread application in many domains, mainly for its ability to learn data representations from raw input data. Nevertheless, its success has so far been coupled with the availability of large annotated (labelled) datasets. This is a requirement that is difficult to fulfil in several domains, such as in medical imaging. Annotation costs form a barrier in extending deep learning to clinically-relevant use cases. The labels associated with medical images are scarce, since the generation of expert annotations of multimodal patient data at scale is non-trivial, expensive, and time-consuming. This substantiates the need for algorithms that learn from the increasing amounts of unlabeled data. Self-supervised representation learning algorithms offer a pertinent solution, as they allow solving real-world (downstream) deep learning tasks with fewer annotations. Self-supervised approaches leverage unlabeled samples to acquire generic features about different concepts, enabling annotation-efficient downstream task solving subsequently. Nevertheless, medical images present multiple unique and inherent challenges for existing self-supervised learning approaches, which we seek to address in this thesis: (i) medical images are multimodal, and their multiple modalities are heterogeneous in nature and imbalanced in quantities, e.g. MRI and CT; (ii) medical scans are multi-dimensional, often in 3D instead of 2D; (iii) disease patterns in medical scans are numerous and their incidence exhibits a long-tail distribution, so it is oftentimes essential to fuse knowledge from different data modalities, e.g. genomics or clinical data, to capture disease traits more comprehensively; (iv) Medical scans usually exhibit more uniform color density distributions, e.g. in dental X-Rays, than natural images. Our proposed self-supervised methods meet these challenges, besides significantly reducing the amounts of required annotations. We evaluate our self-supervised methods on a wide array of medical imaging applications and tasks. Our experimental results demonstrate the obtained gains in both annotation-efficiency and performance; our proposed methods outperform many approaches from related literature. Additionally, in case of fusion with genetic modalities, our methods also allow for cross-modal interpretability. In this thesis, not only we show that self-supervised learning is capable of mitigating manual annotation costs, but also our proposed solutions demonstrate how to better utilize it in the medical imaging domain. Progress in self-supervised learning has the potential to extend deep learning algorithms application to clinical scenarios.}, language = {en} } @phdthesis{Khosravi2023, author = {Khosravi, Sara}, title = {The effect of new turbulence parameterizations for the stable surface layer on simulations of the Arctic climate}, doi = {10.25932/publishup-64352}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-643520}, school = {Universit{\"a}t Potsdam}, pages = {XIV, 119}, year = {2023}, abstract = {Arctic climate change is marked by intensified warming compared to global trends and a significant reduction in Arctic sea ice which can intricately influence mid-latitude atmospheric circulation through tropo- and stratospheric pathways. Achieving accurate simulations of current and future climate demands a realistic representation of Arctic climate processes in numerical climate models, which remains challenging. Model deficiencies in replicating observed Arctic climate processes often arise due to inadequacies in representing turbulent boundary layer interactions that determine the interactions between the atmosphere, sea ice, and ocean. Many current climate models rely on parameterizations developed for mid-latitude conditions to handle Arctic turbulent boundary layer processes. This thesis focuses on modified representation of the Arctic atmospheric processes and understanding their resulting impact on large-scale mid-latitude atmospheric circulation within climate models. The improved turbulence parameterizations, recently developed based on Arctic measurements, were implemented in the global atmospheric circulation model ECHAM6. This involved modifying the stability functions over sea ice and ocean for stable stratification and changing the roughness length over sea ice for all stratification conditions. Comprehensive analyses are conducted to assess the impacts of these modifications on ECHAM6's simulations of the Arctic boundary layer, overall atmospheric circulation, and the dynamical pathways between the Arctic and mid-latitudes. Through a step-wise implementation of the mentioned parameterizations into ECHAM6, a series of sensitivity experiments revealed that the combined impacts of the reduced roughness length and the modified stability functions are non-linear. Nevertheless, it is evident that both modifications consistently lead to a general decrease in the heat transfer coefficient, being in close agreement with the observations. Additionally, compared to the reference observations, the ECHAM6 model falls short in accurately representing unstable and strongly stable conditions. The less frequent occurrence of strong stability restricts the influence of the modified stability functions by reducing the affected sample size. However, when focusing solely on the specific instances of a strongly stable atmosphere, the sensible heat flux approaches near-zero values, which is in line with the observations. Models employing commonly used surface turbulence parameterizations were shown to have difficulties replicating the near-zero sensible heat flux in strongly stable stratification. I also found that these limited changes in surface layer turbulence parameterizations have a statistically significant impact on the temperature and wind patterns across multiple pressure levels, including the stratosphere, in both the Arctic and mid-latitudes. These significant signals vary in strength, extent, and direction depending on the specific month or year, indicating a strong reliance on the background state. Furthermore, this research investigates how the modified surface turbulence parameterizations may influence the response of both stratospheric and tropospheric circulation to Arctic sea ice loss. The most suitable parameterizations for accurately representing Arctic boundary layer turbulence were identified from the sensitivity experiments. Subsequently, the model's response to sea ice loss is evaluated through extended ECHAM6 simulations with different prescribed sea ice conditions. The simulation with adjusted surface turbulence parameterizations better reproduced the observed Arctic tropospheric warming in vertical extent, demonstrating improved alignment with the reanalysis data. Additionally, unlike the control experiments, this simulation successfully reproduced specific circulation patterns linked to the stratospheric pathway for Arctic-mid-latitude linkages. Specifically, an increased occurrence of the Scandinavian-Ural blocking regime (negative phase of the North Atlantic Oscillation) in early (late) winter is observed. Overall, it can be inferred that improving turbulence parameterizations at the surface layer can improve the ECHAM6's response to sea ice loss.}, language = {en} } @masterthesis{Schulz2024, type = {Bachelor Thesis}, author = {Schulz, Florian}, title = {Game Design im Kontext von Kunst und Kunstunterricht}, doi = {10.25932/publishup-64177}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-641773}, school = {Universit{\"a}t Potsdam}, pages = {50}, year = {2024}, abstract = {Im Kontext der zunehmenden Relevanz des Umgangs mit Digitalit{\"a}t im schulischen Unterricht und der daraus resultierenden Popularit{\"a}t von Gaming und Gamification als Lehrmethoden ist das Ziel dieser Arbeit, Game Design als konstruktivistische Herangehensweise an Computerspiele zu untersuchen. Genauer geht es darum, diese Methode hinsichtlich der Tauglichkeit f{\"u}r den Kunstunterricht zu analysieren. Dazu wird darauf eingegangen, inwiefern Game Design als Instruktionsmethode generell Lernen f{\"o}rdert bzw. zur Ausbildung einer Digital Literacy geeignet ist. Der Schwerpunkt liegt darin, Game Design im Hinblick auf die zentralen Kompetenz- und Lerndimensionen des Kunstunterrichts zu beleuchten. Genauer sind damit die k{\"u}nstlerische Produktion und die {\"a}sthetische Rezeption als die beiden maßgeblichen k{\"u}nstlerisch-{\"a}sthetischen Handlungskompetenzen gemeint sowie die {\"a}sthetische Erfahrung als besonderes Lernerlebnis, welches im kunstp{\"a}dagogischen Diskurs neben den beschriebenen Kompetenzen als h{\"o}chstes Ziel der Lehre gilt. Ebendiese drei Dimensionen funktionieren hierbei als Analyseebenen der untersuchten Methode. Game Design stellt sich dabei als weitestgehend f{\"o}rderlich f{\"u}r alle drei benannten Bereiche heraus, wobei es in Bezug auf die sinnliche Wahrnehmung im Prozess der {\"a}sthetischen Rezeption nur eine erg{\"a}nzende Funktion annimmt. Es werden nicht alle Bereiche der Gestaltungsfelder der k{\"u}nstlerischen Produktion angesprochen. Ein experimentell-offenes k{\"u}nstlerisches Arbeiten wird ebenso nicht zwangsl{\"a}ufig erm{\"o}glicht. Jedoch werden alle anderen Bestandteile dieser Kompetenzdimensionen angesprochen und insbesondere die {\"a}sthetische Erfahrung vollumf{\"a}nglich gef{\"o}rdert. Die digitale Spielentwicklung l{\"a}sst sich somit aus kunstp{\"a}dagogischer Perspektive f{\"u}r den Einsatz im Kunstunterricht legitimieren. Mit Ausblick auf STEAM Education und einen projektorientierten Unterricht ist sie sogar zu empfehlen.}, language = {de} } @book{KubanRottaNolteetal.2024, author = {Kuban, Robert and Rotta, Randolf and Nolte, J{\"o}rg and Chromik, Jonas and Beilharz, Jossekin Jakob and Pirl, Lukas and Friedrich, Tobias and Lenzner, Pascal and Weyand, Christopher and Juiz, Carlos and Bermejo, Belen and Sauer, Joao and Coelh, Leandro dos Santos and Najafi, Pejman and P{\"u}nter, Wenzel and Cheng, Feng and Meinel, Christoph and Sidorova, Julia and Lundberg, Lars and Vogel, Thomas and Tran, Chinh and Moser, Irene and Grunske, Lars and Elsaid, Mohamed Esameldin Mohamed and Abbas, Hazem M. and Rula, Anisa and Sejdiu, Gezim and Maurino, Andrea and Schmidt, Christopher and H{\"u}gle, Johannes and Uflacker, Matthias and Nozza, Debora and Messina, Enza and Hoorn, Andr{\´e} van and Frank, Markus and Schulz, Henning and Alhosseini Almodarresi Yasin, Seyed Ali and Nowicki, Marek and Muite, Benson K. and Boysan, Mehmet Can and Bianchi, Federico and Cremaschi, Marco and Moussa, Rim and Abdel-Karim, Benjamin M. and Pfeuffer, Nicolas and Hinz, Oliver and Plauth, Max and Polze, Andreas and Huo, Da and Melo, Gerard de and Mendes Soares, F{\´a}bio and Oliveira, Roberto C{\´e}lio Lim{\~a}o de and Benson, Lawrence and Paul, Fabian and Werling, Christian and Windheuser, Fabian and Stojanovic, Dragan and Djordjevic, Igor and Stojanovic, Natalija and Stojnev Ilic, Aleksandra and Weidmann, Vera and Lowitzki, Leon and Wagner, Markus and Ifa, Abdessatar Ben and Arlos, Patrik and Megia, Ana and Vendrell, Joan and Pfitzner, Bjarne and Redondo, Alberto and R{\´i}os Insua, David and Albert, Justin Amadeus and Zhou, Lin and Arnrich, Bert and Szab{\´o}, Ildik{\´o} and Fodor, Szabina and Ternai, Katalin and Bhowmik, Rajarshi and Campero Durand, Gabriel and Shevchenko, Pavlo and Malysheva, Milena and Prymak, Ivan and Saake, Gunter}, title = {HPI Future SOC Lab - Proceedings 2019}, number = {158}, editor = {Meinel, Christoph and Polze, Andreas and Beins, Karsten and Strotmann, Rolf and Seibold, Ulrich and R{\"o}dszus, Kurt and M{\"u}ller, J{\"u}rgen}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-564-4}, issn = {1613-5652}, doi = {10.25932/publishup-59791}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-597915}, publisher = {Universit{\"a}t Potsdam}, pages = {xi, 301}, year = {2024}, abstract = {The "HPI Future SOC Lab" is a cooperation of the Hasso Plattner Institute (HPI) and industry partners. Its mission is to enable and promote exchange and interaction between the research community and the industry partners. The HPI Future SOC Lab provides researchers with free of charge access to a complete infrastructure of state of the art hard and software. This infrastructure includes components, which might be too expensive for an ordinary research environment, such as servers with up to 64 cores and 2 TB main memory. The offerings address researchers particularly from but not limited to the areas of computer science and business information systems. Main areas of research include cloud computing, parallelization, and In-Memory technologies. This technical report presents results of research projects executed in 2019. Selected projects have presented their results on April 9th and November 12th 2019 at the Future SOC Lab Day events.}, language = {en} } @phdthesis{Richly2024, author = {Richly, Keven}, title = {Memory-efficient data management for spatio-temporal applications}, doi = {10.25932/publishup-63547}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-635473}, school = {Universit{\"a}t Potsdam}, pages = {xii, 181}, year = {2024}, abstract = {The wide distribution of location-acquisition technologies means that large volumes of spatio-temporal data are continuously being accumulated. Positioning systems such as GPS enable the tracking of various moving objects' trajectories, which are usually represented by a chronologically ordered sequence of observed locations. The analysis of movement patterns based on detailed positional information creates opportunities for applications that can improve business decisions and processes in a broad spectrum of industries (e.g., transportation, traffic control, or medicine). Due to the large data volumes generated in these applications, the cost-efficient storage of spatio-temporal data is desirable, especially when in-memory database systems are used to achieve interactive performance requirements. To efficiently utilize the available DRAM capacities, modern database systems support various tuning possibilities to reduce the memory footprint (e.g., data compression) or increase performance (e.g., additional indexes structures). By considering horizontal data partitioning, we can independently apply different tuning options on a fine-grained level. However, the selection of cost and performance-balancing configurations is challenging, due to the vast number of possible setups consisting of mutually dependent individual decisions. In this thesis, we introduce multiple approaches to improve spatio-temporal data management by automatically optimizing diverse tuning options for the application-specific access patterns and data characteristics. Our contributions are as follows: (1) We introduce a novel approach to determine fine-grained table configurations for spatio-temporal workloads. Our linear programming (LP) approach jointly optimizes the (i) data compression, (ii) ordering, (iii) indexing, and (iv) tiering. We propose different models which address cost dependencies at different levels of accuracy to compute optimized tuning configurations for a given workload, memory budgets, and data characteristics. To yield maintainable and robust configurations, we further extend our LP-based approach to incorporate reconfiguration costs as well as optimizations for multiple potential workload scenarios. (2) To optimize the storage layout of timestamps in columnar databases, we present a heuristic approach for the workload-driven combined selection of a data layout and compression scheme. By considering attribute decomposition strategies, we are able to apply application-specific optimizations that reduce the memory footprint and improve performance. (3) We introduce an approach that leverages past trajectory data to improve the dispatch processes of transportation network companies. Based on location probabilities, we developed risk-averse dispatch strategies that reduce critical delays. (4) Finally, we used the use case of a transportation network company to evaluate our database optimizations on a real-world dataset. We demonstrate that workload-driven fine-grained optimizations allow us to reduce the memory footprint (up to 71\% by equal performance) or increase the performance (up to 90\% by equal memory size) compared to established rule-based heuristics. Individually, our contributions provide novel approaches to the current challenges in spatio-temporal data mining and database research. Combining them allows in-memory databases to store and process spatio-temporal data more cost-efficiently.}, language = {en} } @phdthesis{Frank2024, author = {Frank, Mario}, title = {On synthesising Linux kernel module components from Coq formalisations}, doi = {10.25932/publishup-64255}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-642558}, school = {Universit{\"a}t Potsdam}, pages = {IX, 78}, year = {2024}, abstract = {This thesis presents an attempt to use source code synthesised from Coq formalisations of device drivers for existing (micro)kernel operating systems, with a particular focus on the Linux Kernel. In the first part, the technical background and related work are described. The focus is here on the possible approaches to synthesising certified software with Coq, namely the extraction to functional languages using the Coq extraction plugin and the extraction to Clight code using the CertiCoq plugin. It is noted that the implementation of CertiCoq is verified, whereas this is not the case for the Coq extraction plugin. Consequently, there is a correctness guarantee for the generated Clight code which does not hold for the code being generated by the Coq extraction plugin. Furthermore, the differences between user space and kernel space software are discussed in relation to Linux device drivers. It is elaborated that it is not possible to generate working Linux kernel module components using the Coq extraction plugin without significant modifications. In contrast, it is possible to produce working user space drivers both with the Coq extraction plugin and CertiCoq. The subsequent parts describe the main contributions of the thesis. In the second part, it is demonstrated how to extend the Coq extraction plugin to synthesise foreign function calls between the functional language OCaml and the imperative language C. This approach has the potential to improve the type-safety of user space drivers. Furthermore, it is shown that the code being synthesised by CertiCoq cannot be used in kernel space without modifications to the necessary runtime. Consequently, the necessary modifications to the runtimes of CertiCoq and VeriFFI are introduced, resulting in the runtimes becoming compatible components of a Linux kernel module. Furthermore, justifications for the transformations are provided and possible further extensions to both plugins and solutions to failing garbage collection calls in kernel space are discussed. The third part presents a proof of concept device driver for the Linux Kernel. To achieve this, the event handler of the original PC Speaker driver is partially formalised in Coq. Furthermore, some relevant formal properties of the formalised functionality are discussed. Subsequently, a kernel module is defined, utilising the modified variants of CertiCoq and VeriFFI to compile a working device driver. It is furthermore shown that it is possible to compile the synthesised code with CompCert, thereby extending the guarantee of correctness to the assembly layer. This is followed by a performance evaluation that compares a naive formalisation of the PC speaker functionality with the original PC Speaker driver pointing out the weaknesses in the formalisation and possible improvements. The part closes with a summary of the results, their implications and open questions being raised. The last part lists all used sources, separated into scientific literature, documentations or reference manuals and artifacts, i.e. source code.}, language = {en} } @phdthesis{Hagemann2024, author = {Hagemann, Justus}, title = {On the molecular evolution of sengis (Macroscelidea)}, doi = {10.25932/publishup-64197}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-641975}, school = {Universit{\"a}t Potsdam}, pages = {xiii, 144}, year = {2024}, abstract = {This thesis focuses on the molecular evolution of Macroscelidea, commonly referred to as sengis. Sengis are a mammalian order belonging to the Afrotherians, one of the four major clades of placental mammals. Sengis currently consist of twenty extant species, all of which are endemic to the African continent. They can be separated in two families, the soft-furred sengis (Macroscelididae) and the giant sengis (Rhynchocyonidae). While giant sengis can be exclusively found in forest habitats, the different soft-furred sengi species dwell in a broad range of habitats, from tropical rain-forests to rocky deserts. Our knowledge on the evolutionary history of sengis is largely incomplete. The high level of superficial morphological resemblance among different sengi species (especially the soft-furred sengis) has for example led to misinterpretations of phylogenetic relationships, based on morphological characters. With the rise of DNA based taxonomic inferences, multiple new genera were defined and new species described. Yet, no full taxon molecular phylogeny exists, hampering the answering of basic taxonomic questions. This lack of knowledge can be to some extent attributed to the limited availability of fresh-tissue samples for DNA extraction. The broad African distribution, partly in political unstable regions and low population densities complicate contemporary sampling approaches. Furthermore, the DNA information available usually covers only short stretches of the mitochondrial genome and thus a single genetic locus with limited informational content. Developments in DNA extraction and library protocols nowadays offer the opportunity to access DNA from museum specimens, collected over the past centuries and stored in natural history museums throughout the world. Thus, the difficulties in fresh-sample acquisition for molecular biological studies can be overcome by the application of museomics, the research field which emerged from those laboratory developments. This thesis uses fresh-tissue samples as well as a vast collection museum specimens to investigate multiple aspects about the macroscelidean evolutionary history. Chapter 4 of this thesis focuses on the phylogenetic relationships of all currently known sengi species. By accessing DNA information from museum specimens in combination of fresh tissue samples and publicly available genetic resources it produces the first full taxon molecular phylogeny of sengis. It confirms the monophyly of the genus Elephantulus and discovers multiple deeply divergent lineages within different species, highlighting the need for species specific approaches. The study furthermore focuses on the evolutionary time frame of sengis by evaluating the impact of commonly varied parameters on tree dating. The results of the study show, that the mitochondrial information used in previous studies to temporal calibrate the Macroscelidean phylogeny led to an overestimation of node ages within sengis. Especially soft-furred sengis are thus much younger than previously assumed. The refined knowledge of nodes ages within sengis offer the opportunity to link e.g. speciation events to environmental changes. Chapter 5 focuses on the genus Petrodromus with its single representative Petrodromus tetradactylus. It again exploits the opportunities of museomics and gathers a comprehensive, multi-locus genetic dataset of P. tetradactylus individuals, distributed across most the known range of this species. It reveals multiple deeply divergent lineages within Petrodromus, whereby some could possibly be associated to previously described sub-species, at least one was formerly unknown. It underscores the necessity for a revision of the genus Petrodromus through the integration of both molecular and morphological evidence. The study, furthermore identifies changing forest distributions through climatic oscillations as main factor shaping the genetic structure of Petrodromus. Chapter 6 uses fresh tissue samples to extent the genomic resources of sengis by thirteen new nuclear genomes, of which two were de-novo assembled. An extensive dataset of more than 8000 protein coding one-to-one orthologs allows to further refine and confirm the temporal time frame of sengi evolution found in Chapter 4. This study moreover investigates the role of gene-flow and incomplete lineage sorting (ILS) in sengi evolution. In addition it identifies clade specific genes of possible outstanding evolutionary importance and links them to potential phenotypic traits affected. A closer investigation of olfactory receptor proteins reveals clade specific differences. A comparison of the demographic past of sengis to other small African mammals does not reveal a sengi specific pattern.}, language = {en} } @phdthesis{Rogge2024, author = {Rogge, Franziska}, title = {Multiprofessionelle Kooperation an inklusiven Schulen im Bundesland Brandenburg: Vorkommen, Profile, Auswirkungen}, doi = {10.25932/publishup-63919}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-639190}, school = {Universit{\"a}t Potsdam}, pages = {202}, year = {2024}, abstract = {Die Zusammenarbeit zwischen Lehr- und anderen Fachkr{\"a}ften stellt in Modellen inklusiver Schul- und Unterrichtsentwicklung sowie Schuleffektivit{\"a}t ein wichtiges Element dar. Wenngleich Kooperation als bedeutsam postuliert wird, so belegen Studien, dass diese bisher {\"u}berwiegend in autonomieerhaltenden Formen praktiziert wird. Als entwicklungsf{\"o}rderlich gelten jedoch v.a. komplexere Formen der Zusammenarbeit. Vor dem Hintergrund inklusiver Bildung und dem Anspruch einer bestm{\"o}glichen individuellen Entwicklung der Sch{\"u}ler*innen stellt die Zusammenarbeit von Lehr- und Fachkr{\"a}ften folglich ein sehr bedeutsames Thema dar. Es ist zu hinterfragen, wie sich die Zusammenarbeit zwischen Lehr- und Fachkr{\"a}ften im Primar- wie Sekundarstufenbereich an inklusiven Schulen gestaltet, welche Faktoren diese beeinflussen und welche Relevanz die unterschiedlichen Formen der Zusammenarbeit im Prozess inklusiver Schulentwicklung einnehmen. Bestehende Forschungsdesiderata aufgrei-fend, fokussiert die vorliegende Dissertation auf die realisierte Zusammenarbeit von Lehr- und Fachkr{\"a}ften im Primar- und Sekundarstufenbereich inklusiver Schulen, am Beispiel des Landes Brandenburg. Neben den realisierten Formen der Zusammenarbeit, stehen insbesondere die Identifikation von Kooperationsmustern von Lehr- und Fachkr{\"a}ften sowie von Schulen, und deren Zusammenh{\"a}nge mit der Leistungsentwicklung von Sch{\"u}ler*innen im Kern des Forschungsinteresses. Die vorliegende Dissertation bearbeitet insgesamt sechs Forschungsfragen, welche in drei Teilstudien adressiert werden: Zun{\"a}chst werden mittels deskriptiver Analysen sowie Mehrebenenmodellierungen die Ausgangslage multiprofessioneller Kooperation (erste Forschungsfrage) sowie deren Rahmenbedingungen (zweite Forschungsfrage) im Primar- wie Sekundarstufenbereich erfasst (Teilstudie 1). Lehr- und Fachkr{\"a}fte kooperierten {\"u}berwiegend in autonomieerhaltenden, austauschbasierten Formen. Weiterhin zeigte sich, dass insbesondere die individuelle Offenheit zur Zusammenarbeit sowie die subjektiv wahrgenommene Unterst{\"u}tzung durch die Schulleitung bedeutsame Faktoren f{\"u}r die Realisierung multiprofessioneller Kooperation darstellten. Die Fragestellungen drei und vier befassen sich mit der Identifikation von Mustern im Kooperationsverhalten (Teilstudie 2). Zum einen geht es hierbei um personenbezogene Profile von Lehr- und Fachkr{\"a}ften (dritte Forschungsfrage), zum anderen um schulbezogene Profile (vierte Forschungsfrage), welche mittels des personenzentrierten Ansatzes der latenten Profilanalysen unter Ber{\"u}cksichtigung der Mehrebenenstruktur identifiziert werden. Hinsichtlich des individuellen Kooperationsverhaltens konnten vier Profile eruiert werden, bzgl. des schulspezifischen Kooperationsverhaltens drei. Die Mehrheit der Lehr- und Fachkr{\"a}fte konnte im „regularly"-Profil verortet werden, d.h. nach eigener Einsch{\"a}tzung kooperierten diese {\"u}berdurchschnittlich h{\"a}ufig im Austausch miteinander und arbeitsteilig, aber auch regelm{\"a}ßig kokonstruktiv. Auf Schulebene zeigte sich, dass etwa jede zweite inklusive Schule im Land Brandenburg {\"u}ber eine hoch ausgepr{\"a}gte Kooperationskultur verf{\"u}gte. Im Fokus der Teilstudie 3 wird den Fragen nachgegangen, in welchem Zusammenhang die schulspezifischen Kooperationskulturen mit der Leistungsentwicklung von Sch{\"u}ler*innen in der Primar- wie Sekundarstufe steht. Mittels autoregressiver Mehrebenenanalysen wird einerseits der Zusammenhang mit der Leistungsentwicklung aller Sch{\"u}ler*innen (f{\"u}nfte Forschungsfrage) untersucht, sowie spezifisch auf die Entwicklung von Sch{\"u}ler*innen mit und ohne sonderp{\"a}dagogischem F{\"o}rderbedarf (sechste Forschungsfrage) fokussiert. Ein zentrales Ergebnis war hierbei, dass Sch{\"u}ler*innen mit sonderp{\"a}dagogischem F{\"o}rderbedarf in der Primar- wie Sekundarstufe in ihrer Leistungsentwicklung am st{\"a}rksten profitierten, wenn sie an Schulen lernten, an denen sich die Lehr- und Fachkr{\"a}fte sehr regelm{\"a}ßig {\"u}ber Lernst{\"a}nde der Sch{\"u}ler*innen austauschten (Austausch), Arbeitspakete f{\"u}r differenzierte Lernangebote erarbeiteten und verteilten (Arbeitsteilung) und dar{\"u}ber hinaus gelegentlich gemeinsam Probleml{\"o}sungen entwickelten (Kokonstruktion). Die Ergebnisse werden vor dem Hintergrund der postulierten Relevanz multiprofessioneller Kooperation f{\"u}r inklusive Schul- und Unterrichtsentwicklungsprozesse eingeordnet und diskutiert. Weiterhin werden verschiedene praktische Implikationen f{\"u}r die Unterst{\"u}tzung multiprofessioneller Zusammenarbeit im Primar- und Sekundarstufenbereich abgeleitet.}, language = {de} } @book{LinderkampHennigSchramm2024, author = {Linderkamp, Friedrich and Hennig, Timo and Schramm, Satyam Antonio}, title = {ADHS bei Jugendlichen}, edition = {2., aktualisierte und erweiterte}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, doi = {10.25932/publishup-60872}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-608723}, publisher = {Universit{\"a}t Potsdam}, pages = {217}, year = {2024}, abstract = {ADHS galt lange als eine St{\"o}rung des Kindesalters. Aber bis zu 80 \% der Patient:innen sind auch noch als Jugendliche betroffen. Gerade sie brauchen Hilfe bei ihren Problemen! In der Schule m{\"u}ssen sie {\"o}fter die Klasse wiederholen, im sozialen und emotionalen Bereich gibt es Konflikte mit Gleichaltrigen und Eltern. Unbehandelt drohen psychische St{\"o}rungen, Drogenmissbrauch oder delinquentes Verhalten. Das vorliegende Lerntraining ist das erste multimodale Behandlungskonzept f{\"u}r Jugendliche im Alter von 12 bis 17 Jahren. Es werden konkrete Probleme und Aufgaben aus Schule und Umwelt behandelt, um daran allgemeine Strategien herzuleiten. Eltern und Lehrer werden intensiv in die Behandlung mit einbezogen.}, language = {de} } @misc{OPUS4-64275, title = {forum:logop{\"a}die 27.2013, 1}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {27}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {1}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {74}, year = {2013}, language = {de} } @misc{OPUS4-64286, title = {forum:logop{\"a}die 37.2023, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {37}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {62}, year = {2023}, language = {de} } @misc{OPUS4-64285, title = {forum:logop{\"a}die 26.2012, 1}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {26}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {1}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {86}, year = {2012}, language = {de} } @misc{OPUS4-64283, title = {forum:logop{\"a}die 26.2012, 2}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {26}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {2}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {86}, year = {2012}, language = {de} } @misc{OPUS4-64280, title = {forum:logop{\"a}die 26.2012, 3}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {26}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {3}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {75}, year = {2012}, language = {de} } @misc{OPUS4-64279, title = {forum:logop{\"a}die 26.2012, 4}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {26}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {4}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {78}, year = {2012}, language = {de} } @misc{OPUS4-64278, title = {forum:logop{\"a}die 26.2012, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {26}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {83}, year = {2012}, language = {de} } @misc{OPUS4-64276, title = {forum:logop{\"a}die 26.2012, 6}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {27}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {6}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {74}, year = {2012}, language = {de} } @misc{OPUS4-64274, title = {forum:logop{\"a}die 27.2013, 2}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {27}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {2}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {82}, year = {2013}, language = {de} } @misc{OPUS4-64272, title = {forum:logop{\"a}die 27.2013, 3}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {27}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {3}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {70}, year = {2013}, language = {de} } @misc{OPUS4-64271, title = {forum:logop{\"a}die 27.2013, 4}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {27}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {4}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {77}, year = {2013}, language = {de} } @misc{OPUS4-64270, title = {forum:logop{\"a}die 27.2013, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {27}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {87}, year = {2013}, language = {de} } @misc{OPUS4-64269, title = {forum:logop{\"a}die 27.2013, 6}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {27}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {6}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {70}, year = {2013}, language = {de} } @misc{OPUS4-64265, title = {forum:logop{\"a}die 28.2014, 1}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {28}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {1}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {82}, year = {2014}, language = {de} } @misc{OPUS4-64264, title = {forum:logop{\"a}die 28.2014, 2}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {28}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {2}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {82}, year = {2014}, language = {de} } @misc{OPUS4-64263, title = {forum:logop{\"a}die 28.2014, 3}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {28}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {4}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {74}, year = {2014}, language = {de} } @misc{OPUS4-64215, title = {forum:logop{\"a}die 28.2014, 4}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {28}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {74}, year = {2014}, language = {de} } @phdthesis{Heinz2024, author = {Heinz, Markus}, title = {Synthese von Monomeren auf der Basis nachwachsender Rohstoffe und ihre Polymerisation}, doi = {10.25932/publishup-63794}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-637943}, school = {Universit{\"a}t Potsdam}, pages = {XVII, 267}, year = {2024}, abstract = {Die vorliegende Arbeit thematisiert die Synthese und die Polymerisation von Monomeren auf der Basis nachwachsender Rohstoffe wie zum Beispiel in Gew{\"u}rzen und ätherischen Ölen enthaltenen kommerziell verf{\"u}gbaren Phenylpropanoiden (Eugenol, Isoeugenol, Zimtalkohol, Anethol und Estragol) und des Terpenoids Myrtenol sowie ausgehend von der Rinde einer Birke (Betula pendula) und der Korkeiche (Quercus suber). Ausgew{\"a}hlte Phenylpropanoide (Eugenol, Isoeugenol und Zimtalkohol) und das Terpenoid Myrtenol wurden zun{\"a}chst in den jeweiligen Laurylester {\"u}berf{\"u}hrt und anschließend das olefinische Strukturelement epoxidiert, wobei 4 neue (2-Methoxy-4-(oxiran-2-ylmethyl)phenyldodecanoat, 2-Methoxy-4-(3-methyl-oxiran-2-yl)phenyldodecanoat, (3-Phenyloxiran-2-yl)methyldodecanoat, (7,7-Dimethyl-3-oxatricyclo[4.1.1.02,4]octan-2-yl)methyldodecanoat) und 2 bereits bekannte monofunktionelle Epoxide (2-(4-Methoxybenzyl)oxiran und 2-(4-Methoxyphenyl)-3-methyloxiran) erhalten wurden, die mittels 1H-NMR-, 13C-NMR- und FT-IR-Spektroskopie sowie mit DSC untersucht wurden. Die Photo-DSC Untersuchung der Epoxidmonomere in einer kationischen Photopolymerisation bei 40 °C ergab die maximale Polymerisationsgeschwindigkeit (Rpmax: 0,005 s-1 bis 0,038 s-1) sowie die Zeit (tmax: 13 s bis 26 s) bis zum Erreichen des Rpmax-Wertes und f{\"u}hrte zu fl{\"u}ssigen Oligomeren, deren zahlenmittlerer Polymerisationsgrad mit 3 bis 6 mittels GPC bestimmt wurde. Die Umsetzung von 2-Methoxy-4-(oxiran-2-ylmethyl)phenyldodecanoat mit Methacrylsäure ergab ein Isomerengemisch (2-Methoxy-4-(2-hydroxy-3-(methacryloyloxy)propyl)phenyldodecanoat und 2-Methoxy-4-(2-(methacryl-oyloxy)-3-hydroxypropyl)phenyldodecanoat), das mittels Photo-DSC in einer freien radikalischen Photopolymerisation untersucht wurde (Rpmax: 0,105 s-1 und tmax: 5 s), die zu festen in Chloroform unlöslichen Polymeren f{\"u}hrte. Aus Korkpulver und gemahlener Birkenrinde wurden selektiv 2 kristalline ω-Hydroxyfettsäuren (9,10-Epoxy-18-hydroxyoctadecansäure und 22-Hydroxydocosansäure) isoliert. Die kationische Photopolymerisation der 9,10-Epoxy-18-hydroxyoctadecansäure ergab einen nahezu farblosen transparenten und bei Raumtemperatur elastischen Film, welcher ein Anwendungspotential f{\"u}r Oberflächenbeschichtungen hat. Aus der Reaktion von 9,10-Epoxy-18-hydroxyoctadecansäure mit Methacrylsäure wurde ein bei Raumtemperatur fl{\"u}ssiges Gemisch aus zwei Konstitutionsisomeren (9,18-Dihydroxy-10-(methacryloyloxy)octadecansäure und 9-(Methacryloyloxy)-10,18-dihydroxyoctadecansäure) erhalten (Tg: -60 °C). Die radikalische Photopolymerisation dieser Konstitutionsisomere wurde ebenfalls mittels Photo-DSC untersucht (Rpmax: 0,098 s-1 und tmax: 3,8 s). Die Reaktion von 22-Hydroxydocosansäure mit Methacryloylchlorid ergab die kristalline 22-(Methacryloyloxy)docosansäure, welche ebenfalls in einer radikalischen Photopolymerisation mittels Photo-DSC untersucht wurde (Rpmax: 0,023 s-1 und tmax: 9,6 s). Die mittels AIBN in Dimethylsulfoxid initiierte Homopolymerisation der 22-(Methacryloyloxy)docosansäure und der Isomerengemische bestehend aus 2-Methoxy-4-(2-hydroxy-3-(methacryloyloxy)propyl)phenyldodecanoat und 2-Methoxy-4-(2-(methacryl-oyloxy)-3-hydroxypropyl)phenyldodecanoat sowie aus 9,18-Dihydroxy-10-(methacryloy-loxy)octadecansäure und 9-(Methacryloyloxy)-10,18-dihydroxyoctadecansäure ergab feste lösliche Polymere, die mittels 1H-NMR- und FT-IR-Spektroskopie, GPC (Poly(2-methoxy-4-(2-hydroxy-3-(methacryloyloxy)propyl)phenyldodecanoat / 2-methoxy-4-(2-(methacryloyloxy)-3-hydroxypropyl)phenyldodecanoat): Pn = 94) und DSC (Poly(2-methoxy-4-(2-hydroxy-3-(methacryloyloxy)propyl)phenyldodecanoat / 2-methoxy-4-(2-(methacryloyloxy)-3-hydroxypropyl)phenyldodecanoat): Tg: 52 °C; Poly(9,18-dihydroxy-10-(methacryloyloxy)-octadecansäure / 9-(methacryloyloxy)-10,18-dihydroxyoctadecansäure): Tg: 10 °C; Poly(22-(methacryloyloxy)docosansäure): Tm: 74,1 °C, wobei der Schmelzpunkt mit dem des Photopolymers (Tm = 76,8 °C) vergleichbar ist) charakterisiert wurden. Das bereits bekannte Monomer 4-(4-Methacryloyloxyphenyl)butan-2-on wurde ausgehend von 4-(4-Hydroxyphenyl)butan-2-on hergestellt, welches aus Birkenrinde gewonnen werden kann, und unter identischen Bedingungen f{\"u}r einen Vergleich mit den neuen Monomeren polymerisiert. Die freie radikalische Polymerisation f{\"u}hrte zu Poly(4-(4-methacryloyloxyphenyl)butan-2-on) (Pn: 214 und Tg: 83 °C). Neben der Homopolymerisation wurde eine statistische Copolymerisation des Isomerengemisches 2-Methoxy-4-(2-hydroxy-3-(methacryl-oyloxy)propyl)phenyldodecanoat / 2-Methoxy-4-(2-(methacryloyloxy)-3-hydroxypropyl)-phenyldodecanoat mit 4-(4-Methacryloyloxyphenyl)butan-2-on untersucht, wobei ein äquimolarer Einsatz der Ausgangsmonomere zu einem Anstieg der Ausbeute, der Molmassenverteilung und der Dispersität des Copolymers (Tg: 44 °C) f{\"u}hrte. Die unter Verwendung von Diethylcarbonat als „gr{\"u}nes" Lösungsmittel mittels AIBN initiierten freien radikalischen Homopolymerisationen von 4-(4-Methacryloyloxyphenyl)butan-2-on und von Laurylmethacrylat ergaben vergleichbare Polymerisationsgrade der Homopolymere (Pn: 150), welche jedoch aufgrund ihrer Strukturunterschiede deutlich unterschiedliche Glas{\"u}bergangstemperaturen hatten (Poly(4-(4-methacryloyloxyphenyl)butan-2-on): Tg: 70 °C, Poly(laurylmethacrylat) Tg: -49 °C. Eine statistische Copolymerisation äquimolarer Stoffmengen der beiden Monomere in Diethylcarbonat f{\"u}hrte bei einer Polymerisationszeit von 60 Minuten zu einem leicht bevorzugten Einbau des 4-(4-Methacryloyloxyphenyl)butan-2-on in das Copolymer (Tg: 17 °C). Copolymerisationsdiagramme f{\"u}r die freien radikalischen Copolymerisationen von 4-(4-Methacryloyloxyphenyl)butan-2-on mit n-Butylmethacrylat beziehungsweise 2-(Dimethylamino)ethylmethacrylat (t: 20 min bis 60 min; Molenbr{\"u}che (X) f{\"u}r 4-(4-Methacryloyloxyphenyl)butan-2-on: 0,2; 0,4; 0,6 und 0,8) zeigten ein nahezu ideales azeotropes Copolymerisationsverhalten, obwohl ein leicht bevorzugter Einbau von 4-(4-Methacryloyloxyphenyl)butan-2-on in das jeweilige Copolymer beobachtet wurde. Dabei korreliert ein Anstieg der Ausbeute und der Glas{\"u}bergangstemperatur der erhaltenen Copolymere mit einem zunehmenden Gehalt an 4-(4-Methacryloyloxyphenyl)butan-2-on im Reaktionsgemisch. Die unter Einsatz der modifizierten Gibbs-DiMarzio-Gleichung berechneten Glas{\"u}bergangstemperaturen der Copolymere stimmten mit den gemessenen Werten gut {\"u}berein. Das ist eine gute Ausgangsbasis f{\"u}r die Bestimmung der Glas{\"u}bergangstemperatur eines Copolymers mit einer beliebigen Zusammensetzung.}, language = {de} } @misc{OPUS4-64188, title = {forum:logop{\"a}die 28.2014, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {28}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {78}, year = {2014}, language = {de} } @techreport{LessmannGrunerKalkuhletal.2024, type = {Working Paper}, author = {Lessmann, Kai and Gruner, Friedemann and Kalkuhl, Matthias and Edenhofer, Ottmar}, title = {Emissions Trading with Clean-up Certificates}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {79}, issn = {2628-653X}, doi = {10.25932/publishup-64136}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-641368}, pages = {35}, year = {2024}, abstract = {We analyze how conventional emissions trading schemes (ETS) can be modified by introducing "clean-up certificates" to allow for a phase of net-negative emissions. Clean-up certificates bundle the permission to emit CO2 with the obligation for its removal. We show that demand for such certificates is determined by cost-saving technological progress, the discount rate and the length of the compliance period. Introducing extra clean-up certificates into an existing ETS reduces near-term carbon prices and mitigation efforts. In contrast, substituting ETS allowances with clean-up certificates reduces cumulative emissions without depressing carbon prices or mitigation in the near term. We calibrate our model to the EU ETS and identify reforms where simultaneously (i) ambition levels rise, (ii) climate damages fall, (iii) revenues from carbon prices rise and (iv) carbon prices and aggregate mitigation cost fall. For reducing climate damages, roughly half of the issued clean-up certificates should replace conventional ETS allowances. In the context of the EU ETS, a European Carbon Central Bank could manage the implementation of cleanup certificates and could serve as an enforcement mechanism.}, language = {en} } @phdthesis{Pfalz2024, author = {Pfalz, Gregor}, title = {Advancing knowledge of Arctic lake system dynamics: A data-driven perspective on spatiotemporal patterns}, doi = {10.25932/publishup-63655}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-636554}, school = {Universit{\"a}t Potsdam}, pages = {xiii, 136}, year = {2024}, abstract = {Ecosystems play a pivotal role in addressing climate change but are also highly susceptible to drastic environmental changes. Investigating their historical dynamics can enhance our understanding of how they might respond to unprecedented future environmental shifts. With Arctic lakes currently under substantial pressure from climate change, lessons from the past can guide our understanding of potential disruptions to these lakes. However, individual lake systems are multifaceted and complex. Traditional isolated lake studies often fail to provide a global perspective because localized nuances—like individual lake parameters, catchment areas, and lake histories—can overshadow broader conclusions. In light of these complexities, a more nuanced approach is essential to analyze lake systems in a global context. A key to addressing this challenge lies in the data-driven analysis of sedimentological records from various northern lake systems. This dissertation emphasizes lake systems in the northern Eurasian region, particularly in Russia (n=59). For this doctoral thesis, we collected sedimentological data from various sources, which required a standardized framework for further analysis. Therefore, we designed a conceptual model for integrating and standardizing heterogeneous multi-proxy data into a relational database management system (PostgreSQL). Creating a database from the collected data enabled comparative numerical analyses between spatially separated lakes as well as between different proxies. When analyzing numerous lakes, establishing a common frame of reference was crucial. We achieved this by converting proxy values from depth dependency to age dependency. This required consistent age calculations across all lakes and proxies using one age-depth modeling software. Recognizing the broader implications and potential pitfalls of this, we developed the LANDO approach ("Linked Age and Depth Modelling"). LANDO is an innovative integration of multiple age-depth modeling software into a singular, cohesive platform (Jupyter Notebook). Beyond its ability to aggregate data from five renowned age-depth modeling software, LANDO uniquely empowers users to filter out implausible model outcomes using robust geoscientific data. Our method is not only novel but also significantly enhances the accuracy and reliability of lake analyses. Considering the preceding steps, this doctoral thesis further examines the relationship between carbon in sediments and temperature over the last 21,000 years. Initially, we hypothesized a positive correlation between carbon accumulation in lakes and modelled paleotemperature. Our homogenized dataset from heterogeneous lakes confirmed this association, even if the highest temperatures throughout our observation period do not correlate with the highest carbon values. We assume that rapid warming events contribute more to high accumulation, while sustained warming leads to carbon outgassing. Considering the current high concentration of carbon in the atmosphere and rising temperatures, ongoing climate change could cause northern lake systems to contribute to a further increase in atmospheric carbon (positive feedback loop). While our findings underscore the reliability of both our standardized data and the LANDO method, expanding our dataset might offer even greater assurance in our conclusions.}, language = {en} } @misc{OPUS4-64187, title = {forum:logop{\"a}die 28.2014, 6}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {28}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {6}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {70}, year = {2014}, language = {de} } @misc{OPUS4-64186, title = {forum:logop{\"a}die 29.2015, 1}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {29}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {1}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {82}, year = {2015}, language = {de} } @misc{OPUS4-64184, title = {forum:logop{\"a}die 29.2015, 2}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {29}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {2}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, pages = {79}, year = {2015}, language = {de} } @misc{OPUS4-64183, title = {forum:logop{\"a}die 29.2015, 3}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {29}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {3}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {70}, year = {2015}, language = {de} } @misc{OPUS4-64163, title = {forum:logop{\"a}die 29.2015, 4}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {29}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {4}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {78}, year = {2015}, language = {de} } @misc{OPUS4-64161, title = {forum:logop{\"a}die 29.2015, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {29}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {78}, year = {2015}, language = {de} } @misc{OPUS4-64158, title = {forum:logop{\"a}die 29.2015, 6}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {29}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {6}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {66}, year = {2015}, language = {de} } @misc{OPUS4-64156, title = {forum:logop{\"a}die 30.2016, 1}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {30}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {1}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {79}, year = {2016}, language = {de} } @misc{OPUS4-64153, title = {forum:logop{\"a}die 30.2016, 2}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {30}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {2}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {78}, year = {2016}, language = {de} } @misc{OPUS4-64152, title = {forum:logop{\"a}die 30.2016, 3}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {30}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {3}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {66}, year = {2016}, language = {de} } @phdthesis{Damseaux2024, author = {Damseaux, Adrien}, title = {Improving permafrost dynamics in land surface models: insights from dual sensitivity experiments}, doi = {10.25932/publishup-63945}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-639450}, school = {Universit{\"a}t Potsdam}, pages = {xiii, 143}, year = {2024}, abstract = {The thawing of permafrost and the subsequent release of greenhouse gases constitute one of the most significant and uncertain positive feedback loops in the context of climate change, making predictions regarding changes in permafrost coverage of paramount importance. To address these critical questions, climate scientists have developed Land Surface Models (LSMs) that encompass a multitude of physical soil processes. This thesis is committed to advancing our understanding and refining precise representations of permafrost dynamics within LSMs, with a specific focus on the accurate modeling of heat fluxes, an essential component for simulating permafrost physics. The first research question overviews fundamental model prerequisites for the representation of permafrost soils within land surface modeling. It includes a first-of-its-kind comparison between LSMs in CMIP6 to reveal their differences and shortcomings in key permafrost physics parameters. Overall, each of these LSMs represents a unique approach to simulating soil processes and their interactions with the climate system. Choosing the most appropriate model for a particular application depends on factors such as the spatial and temporal scale of the simulation, the specific research question, and available computational resources. The second research question evaluates the performance of the state-of-the-art Community Land Model (CLM5) in simulating Arctic permafrost regions. Our approach overcomes traditional evaluation limitations by individually addressing depth, seasonality, and regional variations, providing a comprehensive assessment of permafrost and soil temperature dynamics. I compare CLM5's results with three extensive datasets: (1) soil temperatures from 295 borehole stations, (2) active layer thickness (ALT) data from the Circumpolar Active Layer Monitoring Network (CALM), and (3) soil temperatures, ALT, and permafrost extent from the ESA Climate Change Initiative (ESA-CCI). The results show that CLM5 aligns well with ESA-CCI and CALM for permafrost extent and ALT but reveals a significant global cold temperature bias, notably over Siberia. These results echo a persistent challenge identified in numerous studies: the existence of a systematic 'cold bias' in soil temperature over permafrost regions. To address this challenge, the following research questions propose dual sensitivity experiments. The third research question represents the first study to apply a Plant Functional Type (PFT)-based approach to derive soil texture and soil organic matter (SOM), departing from the conventional use of coarse-resolution global data in LSMs. This novel method results in a more uniform distribution of soil organic matter density (OMD) across the domain, characterized by reduced OMD values in most regions. However, changes in soil texture exhibit a more intricate spatial pattern. Comparing the results to observations reveals a significant reduction in the cold bias observed in the control run. This method shows noticeable improvements in permafrost extent, but at the cost of an overestimation in ALT. These findings emphasize the model's high sensitivity to variations in soil texture and SOM content, highlighting the crucial role of soil composition in governing heat transfer processes and shaping the seasonal variation of soil temperatures in permafrost regions. Expanding upon a site experiment conducted in Trail Valley Creek by \citet{dutch_impact_2022}, the fourth research question extends the application of the snow scheme proposed by \citet{sturm_thermal_1997} to cover the entire Arctic domain. By employing a snow scheme better suited to the snow density profile observed over permafrost regions, this thesis seeks to assess its influence on simulated soil temperatures. Comparing this method to observational datasets reveals a significant reduction in the cold bias that was present in the control run. In most regions, the Sturm run exhibits a substantial decrease in the cold bias. However, there is a distinctive overshoot with a warm bias observed in mountainous areas. The Sturm experiment effectively addressed the overestimation of permafrost extent in the control run, albeit resulting in a substantial reduction in permafrost extent over mountainous areas. ALT results remain relatively consistent compared to the control run. These outcomes align with our initial hypothesis, which anticipated that the reduced snow insulation in the Sturm run would lead to higher winter soil temperatures and a more accurate representation of permafrost physics. In summary, this thesis demonstrates significant advancements in understanding permafrost dynamics and its integration into LSMs. It has meticulously unraveled the intricacies involved in the interplay between heat transfer, soil properties, and snow dynamics in permafrost regions. These insights offer novel perspectives on model representation and performance.}, language = {en} } @masterthesis{Unterseher2023, type = {Bachelor Thesis}, author = {Unterseher, Lina}, title = {Der Nutzen verk{\"u}rzter Arbeitszeit mit Einkommensausgleich f{\"u}r den {\"o}ffentlichen Arbeitgeber}, doi = {10.25932/publishup-63934}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-639343}, school = {Universit{\"a}t Potsdam}, pages = {V, 30, XV}, year = {2023}, abstract = {Dieses Literatur-Review verfolgt angesichts des gegenw{\"a}rtigen, gesteigerten {\"o}ffentlichen Interesses zum Thema von Arbeitszeitverk{\"u}rzungsmodellen mit Gehaltsausgleich das Ziel, den aktuellen deutsch- und englischsprachigen Forschungsstand zum m{\"o}glichen Nutzen von Arbeitszeitverk{\"u}rzungen mit Gehaltsausgleich (AZV+) f{\"u}r den {\"o}ffentlichen Arbeitgeber dar-zustellen und kritisch auszuwerten. Das Review basiert auf insgesamt zehn Publikationen, die zum großen Teil zu dem Schluss kommen, dass AZV+ zu keinen negativen Effekten, sondern zu entweder neutralen oder auch mehrheitlich positiven Auswirkungen auf die Arbeitgebendenseite f{\"u}hren. Dabei handelt es sich insbesondere um verbesserte Stresslevel, gesundheitliche Aspekte, gleichbleibende oder erh{\"o}hte Produktivit{\"a}t und Motivation/Energie sowie verringerte Absentismuszahlen. Die Anreiz-Beitrags-Theorie bietet sich als Erkl{\"a}rungsmodell f{\"u}r diese Ergebnisse gut an, da sie Aussagen dar{\"u}ber trifft, inwiefern Anreizsysteme wie eine AZV+ f{\"u}r Arbeitnehmende durch deren subjektive Bed{\"u}rfnisbefriedigung unter Einhaltung bestimmter Grenzen (keine {\"U}berschreitung der Beitragsforderungen durch Anpassung des Workload) zu Effekten f{\"u}hren kann, die sich indirekt auch positiv hinsichtlich der Organisationsziele aus-wirken. Die ebenfalls angewandten motivationstheoretischen Elemente der Cognitive Evaluation Theory und der Motivation Crowding Theorie eignen sich weniger gut in ihrer Erkl{\"a}rungskraft der untersuchten Effekte, da die Differenzierung verschiedener Motivationsarten im Rahmen der hier untersuchten Studien unerheblich zu sein scheint. Insgesamt ist die Studienlage zu dem Thema AZV+ generell, und auch speziell im {\"o}ffentlichen Sektor, sehr d{\"u}nn und bietet kaum M{\"o}glichkeiten f{\"u}r generalisierende Aus-sagen, sodass ein großer Forschungsbedarf zu diesem Thema besteht.}, language = {de} } @misc{OPUS4-64061, title = {forum:logop{\"a}die 30.2016, 4}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {30}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {4}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {71}, year = {2016}, language = {de} } @misc{OPUS4-64060, title = {forum:logop{\"a}die 30.2016, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {30}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {83}, year = {2016}, language = {de} } @phdthesis{Koyan2024, author = {Koyan, Philipp}, title = {3D attribute analysis and classification to interpret ground-penetrating radar (GPR) data collected across sedimentary environments: Synthetic studies and field examples}, doi = {10.25932/publishup-63948}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-639488}, school = {Universit{\"a}t Potsdam}, pages = {xi, 115, A51}, year = {2024}, abstract = {Die Untersuchung des oberfl{\"a}chennahen Untergrundes erfolgt heutzutage bei Frage- stellungen aus den Bereichen des Bauwesens, der Arch{\"a}ologie oder der Geologie und Hydrologie oft mittels zerst{\"o}rungsfreier beziehungsweise zerst{\"o}rungsarmer Methoden der angewandten Geophysik. Ein Bereich, der eine immer zentralere Rolle in Forschung und Ingenieurwesen einnimmt, ist die Untersuchung von sediment{\"a}ren Umgebungen, zum Beispiel zur Charakterisierung oberfl{\"a}chennaher Grundwassersysteme. Ein in diesem Kontext h{\"a}ufig eingesetztes Verfahren ist das des Georadars (oftmals GPR - aus dem Englischen ground-penetrating radar). Dabei werden kurze elektromagnetische Impulse von einer Antenne in den Untergrund ausgesendet, welche dort wiederum an Kontrasten der elektromagnetischen Eigenschaften (wie zum Beispiel an der Grundwasseroberfl{\"a}che) reflektiert, gebrochen oder gestreut werden. Eine Empfangsantenne zeichnet diese Signale in Form derer Amplituden und Laufzeiten auf. Eine Analyse dieser aufgezeichneten Signale erm{\"o}glicht Aussagen {\"u}ber den Untergrund, beispielsweise {\"u}ber die Tiefenlage der Grundwasseroberfl{\"a}che oder die Lagerung und Charakteristika oberfl{\"a}chennaher Sedimentschichten. Dank des hohen Aufl{\"o}sungsverm{\"o}gens der GPR-Methode sowie stetiger technologischer Entwicklungen erfolgt heutzutage die Aufzeichnung von GPR- Daten immer h{\"a}ufiger in 3D. Trotz des hohen zeitlichen und technischen Aufwandes f{\"u}r die Datenakquisition und -bearbeitung werden die resultierenden 3D-Datens{\"a}tze, welche den Untergrund hochaufl{\"o}send abbilden, typischerweise von Hand interpretiert. Dies ist in der Regel ein {\"a}ußerst zeitaufwendiger Analyseschritt. Daher werden oft repr{\"a}sentative 2D-Schnitte aus dem 3D-Datensatz gew{\"a}hlt, in denen markante Reflektionsstrukuren markiert werden. Aus diesen Strukturen werden dann sich {\"a}hnelnde Bereiche im Untergrund als so genannte Radar-Fazies zusammengefasst. Die anhand von 2D-Schnitten erlangten Resultate werden dann als repr{\"a}sentativ f{\"u}r die gesamte untersuchte Fl{\"a}che angesehen. In dieser Form durchgef{\"u}hrte Interpretationen sind folglich oft unvollst{\"a}ndig sowie zudem in hohem Maße von der Expertise der Interpretierenden abh{\"a}ngig und daher in der Regel nicht reproduzierbar. Eine vielversprechende Alternative beziehungsweise Erg{\"a}nzung zur manuellen In- terpretation ist die Verwendung von so genannten GPR-Attributen. Dabei werden nicht die aufgezeichneten Daten selbst, sondern daraus abgeleitete Gr{\"o}ßen, welche die markanten Reflexionsstrukturen in 3D charakterisieren, zur Interpretation herangezogen. In dieser Arbeit wird anhand verschiedener Feld- und Modelldatens{\"a}tze untersucht, welche Attribute sich daf{\"u}r insbesondere eignen. Zudem zeigt diese Arbeit, wie ausgew{\"a}hlte Attribute mittels spezieller Bearbeitungs- und Klassifizierungsmethoden zur Erstellung von 3D-Faziesmodellen genutzt werden k{\"o}nnen. Dank der M{\"o}glichkeit der Erstellung so genannter attributbasierter 3D-GPR-Faziesmodelle k{\"o}nnen zuk{\"u}nftige Interpretationen zu gewissen Teilen automatisiert und somit effizienter durchgef{\"u}hrt werden. Weiterhin beschreiben die so erhaltenen Resultate den untersuchten Untergrund in reproduzierbarer Art und Weise sowie umf{\"a}nglicher als es bisher mittels manueller Interpretationsmethoden typischerweise m{\"o}glich war.}, language = {en} } @misc{OPUS4-64055, title = {forum:logop{\"a}die 30.2016, 6}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {30}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {6}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {71}, year = {2016}, language = {de} } @misc{OPUS4-64054, title = {forum:logop{\"a}die 31.2017, 1}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {31}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {1}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {78}, year = {2017}, language = {de} } @misc{OPUS4-64053, title = {forum:logop{\"a}die 31.2017, 2}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {31}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {2}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {75}, year = {2017}, language = {de} } @misc{OPUS4-64052, title = {forum:logop{\"a}die 31.2017, 3}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {31}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {3}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {70}, year = {2017}, language = {de} } @misc{OPUS4-64051, title = {forum:logop{\"a}die 31.2017, 4}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {31}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {4}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {71}, year = {2017}, language = {de} } @misc{OPUS4-64049, title = {forum:logop{\"a}die 31.2017, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {31}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {75}, year = {2017}, language = {de} } @misc{OPUS4-64048, title = {forum:logop{\"a}die 31.2017, 6}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {31}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {6}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {71}, year = {2017}, language = {de} } @misc{OPUS4-64047, title = {forum:logop{\"a}die 32.2018, 1}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {32}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {1}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {82}, year = {2018}, language = {de} } @misc{OPUS4-64045, title = {forum:logop{\"a}die 32.2018, 2}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {32}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {2}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {79}, year = {2018}, language = {de} } @misc{OPUS4-64043, title = {forum:logop{\"a}die 32.2018, 3}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {32}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {3}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {67}, year = {2018}, language = {de} } @misc{OPUS4-64038, title = {forum:logop{\"a}die 32.2018, 4}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {32}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {4}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {63}, year = {2018}, language = {de} } @misc{OPUS4-64036, title = {forum:logop{\"a}die 32.2018, 5}, series = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, volume = {32}, journal = {Forum Logop{\"a}die : Zeitschrift des Deutschen Bundesverbandes f{\"u}r Logop{\"a}die e.V, dbl}, number = {5}, publisher = {Schulz-Kirchner}, address = {Idstein}, organization = {Deutscher Bundesverband f{\"u}r Logop{\"a}die e.V.}, issn = {0932-0547}, pages = {74}, year = {2018}, language = {de} } @phdthesis{MahnckeZare2024, author = {Mahncke-Zare, Naghme}, title = {Legitimiertes Unrecht}, doi = {10.25932/publishup-63549}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-635499}, school = {Universit{\"a}t Potsdam}, pages = {316}, year = {2024}, abstract = {Das Oberste Gericht der DDR war integraler Bestandteil der sozialistischen Staatsf{\"u}hrung und unterlag strengen Denk- und Organisationsstrukturen. Es war eng in die politische Agenda der SED eingebunden und genoss keinerlei Unabh{\"a}ngigkeit. Die Auslegung des DDR-Rechts durch das Gericht orientierte sich ausschließlich an den innen- und außenpolitischen Interessen der SED. Dies galt auch f{\"u}r die Rechtsprechung in F{\"a}llen der Republikflucht und ihrer gesetzlichen Vorl{\"a}ufer. Die h{\"o}chste Gerichtsinstanz im Staat war aktiv an der Gestaltung und Umsetzung der Strafjustiz gegen Republikfl{\"u}chtige beteiligt, was wesentlich zur Festigung der Herrschaftsgewalt der SED beitrug. Die vorliegende Untersuchung analysiert Urteile des Obersten Gerichts im historisch-politischen Kontext und zeigt auf, dass die Urteilspraxis ausschließlich im Interesse parteipolitischer Ziele handelte und weder dem Volk noch der eigentlichen Rechtsfindung verpflichtet war. Des Weiteren wird der maßgebliche Beitrag des Obersten Gerichts an der schrittweisen Kriminalisierung der B{\"u}rger der DDR beleuchtet. Dies wirft ein kritisches Licht auf die Rolle des Rechtssystems bei der Sicherung von Rechtsstaatlichkeit und Menschenrechten in autorit{\"a}ren Regimen.}, language = {de} }