@phdthesis{Zona2024, author = {Zona, Carlotta Isabella}, title = {Visuo-linguistic integration for thematic-role assignment across speakers}, doi = {10.25932/publishup-63185}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-631857}, school = {Universit{\"a}t Potsdam}, pages = {147}, year = {2024}, abstract = {This dissertation examines the integration of incongruent visual-scene and morphological-case information ("cues") in building thematic-role representations of spoken relative clauses in German. Addressing the mutual influence of visual and linguistic processing, the Coordinated Interplay Account (CIA) describes a mechanism in two steps supporting visuo-linguistic integration (Knoeferle \& Crocker, 2006, Cog Sci). However, the outcomes and dynamics of integrating incongruent thematic-role representations from distinct sources have been investigated scarcely. Further, there is evidence that both second-language (L2) and older speakers may rely on non-syntactic cues relatively more than first-language (L1)/young speakers. Yet, the role of visual information for thematic-role comprehension has not been measured in L2 speakers, and only limitedly across the adult lifespan. Thematically unambiguous canonically ordered (subject-extracted) and noncanonically ordered (object-extracted) spoken relative clauses in German (see 1a-b) were presented in isolation and alongside visual scenes conveying either the same (congruent) or the opposite (incongruent) thematic relations as the sentence did. 1 a Das ist der Koch, der die Braut verfolgt. This is the.NOM cook who.NOM the.ACC bride follows This is the cook who is following the bride. b Das ist der Koch, den die Braut verfolgt. This is the.NOM cook whom.ACC the.NOM bride follows This is the cook whom the bride is following. The relative contribution of each cue to thematic-role representations was assessed with agent identification. Accuracy and latency data were collected post-sentence from a sample of L1 and L2 speakers (Zona \& Felser, 2023), and from a sample of L1 speakers from across the adult lifespan (Zona \& Reifegerste, under review). In addition, the moment-by-moment dynamics of thematic-role assignment were investigated with mouse tracking in a young L1 sample (Zona, under review). The following questions were addressed: (1) How do visual scenes influence thematic-role representations of canonical and noncanonical sentences? (2) How does reliance on visual-scene, case, and word-order cues vary in L1 and L2 speakers? (3) How does reliance on visual-scene, case, and word-order cues change across the lifespan? The results showed reliable effects of incongruence of visually and linguistically conveyed thematic relations on thematic-role representations. Incongruent (vs. congruent) scenes yielded slower and less accurate responses to agent-identification probes presented post-sentence. The recently inspected agent was considered as the most likely agent ~300ms after trial onset, and the convergence of visual scenes and word order enabled comprehenders to assign thematic roles predictively. L2 (vs. L1) participants relied more on word order overall. In response to noncanonical clauses presented with incongruent visual scenes, sensitivity to case predicted the size of incongruence effects better than L1-L2 grouping. These results suggest that the individual's ability to exploit specific cues might predict their weighting. Sensitivity to case was stable throughout the lifespan, while visual effects increased with increasing age and were modulated by individual interference-inhibition levels. Thus, age-related changes in comprehension may stem from stronger reliance on visually (vs. linguistically) conveyed meaning. These patterns represent evidence for a recent-role preference - i.e., a tendency to re-assign visually conveyed thematic roles to the same referents in temporally coordinated utterances. The findings (i) extend the generalizability of CIA predictions across stimuli, tasks, populations, and measures of interest, (ii) contribute to specifying the outcomes and mechanisms of detecting and indexing incongruent representations within the CIA, and (iii) speak to current efforts to understand the sources of variability in sentence comprehension.}, language = {en} } @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{ZimmermannKampeScholzetal.2024, author = {Zimmermann, Matthias and Kampe, Heike and Scholz, Jana and Aust, Sarah-Madeleine and Horn-Conrad, Antje and Engel, Silke and Agrofylax, Luisa and Schlegel, Theresa and Mikulla, Stefanie and Albrecht, Anna Helena and Neher, Dieter and Himmler, Lena}, title = {Bildung:digital}, series = {Portal Wissen: Das Forschungsmagazin der Universit{\"a}t Potsdam}, journal = {Portal Wissen: Das Forschungsmagazin der Universit{\"a}t Potsdam}, number = {01/2024}, issn = {2194-4245}, doi = {10.25932/publishup-63129}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-631291}, pages = {98}, year = {2024}, abstract = {Heute Morgen schon im Bett geswiped, geliked oder gepostet? Auf Arbeit an einer Video-Konferenz teilgenommen, eine Datenbank benutzt oder programmiert? Auf dem Heimweg schnell noch im Laden mit dem Smartphone bezahlt, Podcasts geh{\"o}rt und die Ausleihe der Bibliotheksb{\"u}cher verl{\"a}ngert? Und abends auf der Couch mit dem Tablet auf ELSTER.de die Steuererkl{\"a}rung ausgef{\"u}llt, online geshoppt oder Rechnungen bezahlt, ehe die Streaming-Plattform mit einer Serie lockt? Unser Leben ist durch und durch digitalisiert. Diese Ver{\"a}nderungen machen vieles schneller, leichter, effizienter. Doch damit Schritt zu halten, verlangt uns einiges ab und gelingt beileibe nicht allen. Es gibt Menschen, die f{\"u}r eine {\"U}berweisung lieber zur Bank gehen, das Programmieren den Experten {\"u}berlassen, die Steuererkl{\"a}rung per Post schicken und das Smartphone nur zum Telefonieren benutzen. Sie wollen nicht, vielleicht k{\"o}nnen sie auch nicht. Haben es nicht gelernt. Andere, j{\"u}ngere Menschen, wachsen als „Digital Natives" inmitten digitaler Ger{\"a}te, Tools und Prozesse auf. Aber k{\"o}nnen sie deshalb wirklich damit umgehen? Oder brauchen auch sie digitale Bildung? Aber wie sieht erfolgreiche digitale Bildung eigentlich aus? Lernen wir dabei ein Tablet zu bedienen, richtig zu googeln und Excel-Tabellen zu schreiben? M{\"o}glicherweise geht es um mehr: darum, den umfassenden Wandel zu verstehen, der unsere Welt erfasst, seitdem sie in Einsen und Nullen zerlegt und virtuell neu aufgebaut wird. Aber wie lernen wir, in einer Welt der Digitalit{\"a}t zu leben - mit allem, was dazu geh{\"o}rt und zu unserem Nutzen? F{\"u}r die aktuelle Ausgabe der „Portal Wissen" haben wir uns an der Universit{\"a}t Potsdam umgeschaut, welche Rolle die Verbindung von Digitalisierung und Lernen in der Forschung der verschiedenen Disziplinen spielt: Wir haben mit Katharina Scheiter, Professorin f{\"u}r digitale Bildung, {\"u}ber die Zukunft in deutschen Schulen gesprochen und uns gleich von mehreren Expert*innen Beispiele daf{\"u}r zeigen lassen, wie digitale Instrumente schulisches Lernen, aber auch Weiterbildung im Berufsleben verbessern k{\"o}nnen. Außerdem haben uns Forschende aus Informatik und Agrarforschung vorgef{\"u}hrt, wie auch gestandene Landwirte dank digitaler Hilfsmittel noch viel {\"u}ber ihr Land und ihre Arbeit lernen k{\"o}nnen. Wir haben mit Bildungsforschenden gesprochen, die mithilfe von Big Data analysieren, wie Jungen und M{\"a}dchen lernen und wo m{\"o}gliche Ursachen f{\"u}r Unterschiede zu suchen sind. Die Bildungsund Politikwissenschaftlerin Nina Kolleck wiederum schaut auf Bildung vor dem Hintergrund der Globalisierung und setzt dabei auf die Auswertung von großen Mengen Social-Media- Daten. Dabei verlieren wir nat{\"u}rlich die Vielfalt der Forschung an der Uni Potsdam nicht aus den Augen: Wir stellen der Strafrechtlerin Anna Albrecht 33 Fragen, begleiten eine Gruppe von Geoforschenden in den Himalaya und lassen uns erkl{\"a}ren, welche Alternativen es bald zu Antibiotika geben k{\"o}nnte. Außerdem geht es in diesem Magazin um Stress und wie er uns krankmacht, die Forschung zu nachhaltiger Erzgewinnung und neue Ans{\"a}tze in der Schulentwicklung. Neu ist auch eine ganze Reihe k{\"u}rzerer Beitr{\"a}ge, die zum Bl{\"a}ttern und Schm{\"o}kern einladen: von Forschungsnews und Personalia- Infos {\"u}ber fotografische Einblicke in Labore, einfache Erkl{\"a}rungen komplexer Ph{\"a}nomene und Ausblicke in die weite Forschungswelt bis hin zu einer kleinen Wissenschaftsutopie, einem pers{\"o}nlichen Dank an die Forschung und einem Wissenschaftscomic. All das im Namen der Bildung, versteht sich. Viel Vergn{\"u}gen bei der Lekt{\"u}re!}, language = {de} } @incollection{ZimmermannStern2024, author = {Zimmermann, Andreas and Stern, Rebecca Thorburn}, title = {Article 22 1951 Convention}, series = {The 1951 Convention relating to the status of refugees and its 1967 Protocol}, booktitle = {The 1951 Convention relating to the status of refugees and its 1967 Protocol}, editor = {Zimmermann, Andreas and Terje, Einarsen}, edition = {Second edition}, publisher = {Oxford University Press}, address = {Oxford}, isbn = {978-0-19-285511-4}, doi = {10.1093/law/9780192855114.001.0001}, pages = {1201 -- 1226}, year = {2024}, abstract = {This chapter covers the 1951 Convention's Article 22. It explains the provision's aim to grant refugees access to the contracting States' national educational systems. Moreover, Article 22 encompasses learning at all different levels of education in schools, universities, and other educational institutions. However, the provision does not address any issues related to the upbringing of children by their parents. The chapter mentions the relevancy of Article 22 when it comes to durable solutions for refugees in an effort to enable them to integrate into the host country's society. It also discusses the drafting history, declarations, and reservations of Article 22 and the instruments used prior to the 1951 Convention.}, language = {en} } @incollection{ZimmermannHerrmann2024, author = {Zimmermann, Andreas and Herrmann, Franziska M.}, title = {Article 1 A, para. 2 1951 Convention}, series = {The 1951 Convention relating to the status of refugees and its 1967 Protocol}, booktitle = {The 1951 Convention relating to the status of refugees and its 1967 Protocol}, editor = {Zimmermann, Andreas and Terje, Einarsen}, edition = {Second edition}, publisher = {Oxford University Press}, address = {Oxford}, isbn = {978-0-19-285511-4}, doi = {10.1093/law/9780192855114.001.0001}, pages = {359 -- 556}, year = {2024}, abstract = {This chapter focuses on the features of Article 1's paragraph 1 of the 1951 Convention. The article primarily determines the scope of application of the Convention's ratione personae while outlining the basis of the protection of refugees. Additionally, Article 1 addresses the concerns surrounding the inclusion, cessation, and exclusion of refugees. The chapter then tackles the historical development of the article by considering the instruments used prior to the 1951 Convention. It also cites that the Constitution of the International Refugee Organization appears to contain an ambiguity as to how the refugee notion was perceived, so refugees only became the IRO Constitution's concern when they have valid objections to returning to their home country.}, language = {en} } @misc{Ziemann2024, type = {Master Thesis}, author = {Ziemann, Felix}, title = {Entwicklung und Evaluation einer prototypischen Lernumgebung f{\"u}r das systematische Debugging logischer Fehler in Quellcode}, doi = {10.25932/publishup-63273}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-632734}, school = {Universit{\"a}t Potsdam}, pages = {x, 98}, year = {2024}, abstract = {Wo programmiert wird, da passieren Fehler. Um das Debugging, also die Suche sowie die Behebung von Fehlern in Quellcode, st{\"a}rker explizit zu adressieren, verfolgt die vorliegende Arbeit das Ziel, entlang einer prototypischen Lernumgebung sowohl ein systematisches Vorgehen w{\"a}hrend des Debuggings zu vermitteln als auch Gestaltungsfolgerungen f{\"u}r ebensolche Lernumgebungen zu identifizieren. Dazu wird die folgende Forschungsfrage gestellt: Wie verhalten sich die Lernenden w{\"a}hrend des kurzzeitigen Gebrauchs einer Lernumgebung nach dem Cognitive Apprenticeship-Ansatz mit dem Ziel der expliziten Vermittlung eines systematischen Debuggingvorgehens und welche Eindr{\"u}cke entstehen w{\"a}hrend der Bearbeitung? Zur Beantwortung dieser Forschungsfrage wurde orientierend an literaturbasierten Implikationen f{\"u}r die Vermittlung von Debugging und (medien-)didaktischen Gestaltungsaspekten eine prototypische Lernumgebung entwickelt und im Rahmen einer qualitativen Nutzerstudie mit Bachelorstudierenden informatischer Studieng{\"a}nge erprobt. Hierbei wurden zum einen anwendungsbezogene Verbesserungspotenziale identifiziert. Zum anderen zeigte sich insbesondere gegen{\"u}ber der Systematisierung des Debuggingprozesses innerhalb der Aufgabenbearbeitung eine positive Resonanz. Eine Untersuchung, inwieweit sich die Nutzung der Lernumgebung l{\"a}ngerfristig auf das Verhalten von Personen und ihre Vorgehensweisen w{\"a}hrend des Debuggings auswirkt, k{\"o}nnte Gegenstand kommender Arbeiten sein.}, language = {de} } @phdthesis{Zhou2024, author = {Zhou, Xiangqian}, title = {Modeling of spatially distributed nitrate transport to investigate the effects of drought and river restoration in the Bode catchment, Central Germany}, doi = {10.25932/publishup-62105}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-621059}, school = {Universit{\"a}t Potsdam}, pages = {VIII, 168}, year = {2024}, abstract = {The European Water Framework Directive (WFD) has identified river morphological alteration and diffuse pollution as the two main pressures affecting water bodies in Europe at the catchment scale. Consequently, river restoration has become a priority to achieve the WFD's objective of good ecological status. However, little is known about the effects of stream morphological changes, such as re-meandering, on in-stream nitrate retention at the river network scale. Therefore, catchment nitrate modeling is necessary to guide the implementation of spatially targeted and cost-effective mitigation measures. Meanwhile, Germany, like many other regions in central Europe, has experienced consecutive summer droughts from 2015-2018, resulting in significant changes in river nitrate concentrations in various catchments. However, the mechanistic exploration of catchment nitrate responses to changing weather conditions is still lacking. Firstly, a fully distributed, process-based catchment Nitrate model (mHM-Nitrate) was used, which was properly calibrated and comprehensively evaluated at numerous spatially distributed nitrate sampling locations. Three calibration schemes were designed, taking into account land use, stream order, and mean nitrate concentrations, and they varied in spatial coverage but used data from the same period (2011-2019). The model performance for discharge was similar among the three schemes, with Nash-Sutcliffe Efficiency (NSE) scores ranging from 0.88 to 0.92. However, for nitrate concentrations, scheme 2 outperformed schemes 1 and 3 when compared to observed data from eight gauging stations. This was likely because scheme 2 incorporated a diverse range of data, including low discharge values and nitrate concentrations, and thus provided a better representation of within-catchment heterogenous. Therefore, the study suggests that strategically selecting gauging stations that reflect the full range of within-catchment heterogeneity is more important for calibration than simply increasing the number of stations. Secondly, the mHM-Nitrate model was used to reveal the causal relations between sequential droughts and nitrate concentration in the Bode catchment (3200 km2) in central Germany, where stream nitrate concentrations exhibited contrasting trends from upstream to downstream reaches. The model was evaluated using data from six gauging stations, reflecting different levels of runoff components and their associated nitrate-mixing from upstream to downstream. Results indicated that the mHM-Nitrate model reproduced dynamics of daily discharge and nitrate concentration well, with Nash-Sutcliffe Efficiency ≥ 0.73 for discharge and Kling-Gupta Efficiency ≥ 0.50 for nitrate concentration at most stations. Particularly, the spatially contrasting trends of nitrate concentration were successfully captured by the model. The decrease of nitrate concentration in the lowland area in drought years (2015-2018) was presumably due to (1) limited terrestrial export loading (ca. 40\% lower than that of normal years 2004-2014), and (2) increased in-stream retention efficiency (20\% higher in summer within the whole river network). From a mechanistic modelling perspective, this study provided insights into spatially heterogeneous flow and nitrate dynamics and effects of sequential droughts, which shed light on water-quality responses to future climate change, as droughts are projected to be more frequent. Thirdly, this study investigated the effects of stream restoration via re-meandering on in-stream nitrate retention at network-scale in the well-monitored Bode catchment. The mHM-Nitrate model showed good performance in reproducing daily discharge and nitrate concentrations, with median Kling-Gupta values of 0.78 and 0.74, respectively. The mean and standard deviation of gross nitrate retention efficiency, which accounted for both denitrification and assimilatory uptake, were 5.1 ± 0.61\% and 74.7 ± 23.2\% in winter and summer, respectively, within the stream network. The study found that in the summer, denitrification rates were about two times higher in lowland sub-catchments dominated by agricultural lands than in mountainous sub-catchments dominated by forested areas, with median ± SD of 204 ± 22.6 and 102 ± 22.1 mg N m-2 d-1, respectively. Similarly, assimilatory uptake rates were approximately five times higher in streams surrounded by lowland agricultural areas than in those in higher-elevation, forested areas, with median ± SD of 200 ± 27.1 and 39.1 ± 8.7 mg N m-2 d-1, respectively. Therefore, restoration strategies targeting lowland agricultural areas may have greater potential for increasing nitrate retention. The study also found that restoring stream sinuosity could increase net nitrate retention efficiency by up to 25.4 ± 5.3\%, with greater effects seen in small streams. These results suggest that restoration efforts should consider augmenting stream sinuosity to increase nitrate retention and decrease nitrate concentrations at the catchment scale.}, language = {en} } @phdthesis{You2024, author = {You, Lili}, title = {Chloroplast engineering for recombinant protein production and stress protection}, school = {Universit{\"a}t Potsdam}, pages = {133}, year = {2024}, language = {en} } @article{XinYingTiberiusAlnooretal.2024, author = {XinYing, Chew and Tiberius, Victor and Alnoor, Alhamzah and Camilleri, Mark and Khaw, Khai Wah}, title = {The dark side of metaverse: a multi-perspective of deviant behaviors from PLS-SEM and fsQCA findings}, series = {International journal of human-computer interaction}, journal = {International journal of human-computer interaction}, publisher = {Taylor \& Francis}, address = {London}, issn = {1044-7318}, doi = {10.1080/10447318.2024.2331875}, pages = {21}, year = {2024}, abstract = {The metaverse has created a huge buzz of interest because such a phenomenon is emerging. The behavioral aspect of the metaverse includes user engagement and deviant behaviors in the metaverse. Such technology has brought various dangers to individuals and society. There are growing cases reported of sexual abuse, racism, harassment, hate speech, and bullying because of online disinhibition make us feel more relaxed. This study responded to the literature call by investigating the effect of technical and social features through mediating roles of security and privacy on deviant behaviors in the metaverse. The data collected from virtual network users reached 1121 respondents. Partial Least Squares based structural equation modeling (PLS-SEM) and fuzzy set Qualitative Comparative Analysis (fsQCA) were used. PLS-SEM results revealed that social features such as user-to-user interaction, homophily, social ties, and social identity, and technical design such as immersive experience and invisibility significantly affect users' deviant behavior in the metaverse. The fsQCA results provided insights into the multiple causal solutions and configurations. This study is exceptional because it provided decisive results by understanding the deviant behavior of users based on the symmetrical and asymmetrical approach to virtual networks.}, language = {en} } @phdthesis{Woebbeking2024, author = {W{\"o}bbeking, Cordula}, title = {K{\"o}rper - Karte - Text}, series = {Sanssouci - Forschungen zur Romanistik}, volume = {22}, journal = {Sanssouci - Forschungen zur Romanistik}, publisher = {Frank \& Timme}, address = {Berlin}, isbn = {978-3-7329-1016-8}, issn = {2193-9985}, school = {Universit{\"a}t Potsdam}, pages = {280}, year = {2024}, abstract = {Rabelais' Pentalogie um die Riesen Gargantua und Pantagruel spiegelt Aspekte des sich ver{\"a}ndernden Weltbildes ihrer Entstehungszeit. Diese Studie untersucht auf der Folie der Theorie des Simulakrum Schrift, wie K{\"o}rpermodellierungen und kartographisches imaginaire durch den Autor als Strategien der Verh{\"u}llung verborgener Botschaften eingesetzt werden. Sie zeigt an ausgew{\"a}hlten Beispielen des Quart Livre die Aufweichung der Grenzen von K{\"o}rper, Karte und Text und deren Durchdringung. Die Metaphorizit{\"a}t des Textes gibt Aufschluss {\"u}ber seine Autoreflexivit{\"a}t und bewirkt eine gleichsam ganzheitliche Lekt{\"u}reerfahrung. Schließlich avanciert die Fiktion in ihrer Trugbildhaftigkeit als grotesk-sinnlicher K{\"o}rper und polysemantische Karte zum Welterkl{\"a}rungsmodell, das jedoch erst dechiffriert werden muss.}, language = {de} } @incollection{Wolf2024, author = {Wolf, Hannah}, title = {Zuhause}, series = {WohnWissen : 100 Begriffe des Wohnens}, booktitle = {WohnWissen : 100 Begriffe des Wohnens}, editor = {Genz, Carolin and Schnur, Olaf and Aring, J{\"u}rgen}, publisher = {Jovis}, address = {Berlin}, isbn = {978-3-98612-038-2}, doi = {10.1515/9783986120412}, pages = {240 -- 241}, year = {2024}, language = {de} } @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} } @inproceedings{WinterBenderAier2024, author = {Winter, Robert and Bender, Benedict and Aier, Stephan}, title = {Enterprise-level IS research - need, conceptualization, exemplary knowledge contributions and future opportunities}, series = {Proceedings of the 57th Annual Hawaii International Conference on System Sciences}, booktitle = {Proceedings of the 57th Annual Hawaii International Conference on System Sciences}, editor = {Bui, Tung X.}, publisher = {Hawaii International Conference on System Sciences}, address = {Honolulu, HI}, isbn = {978-0-9981331-7-1}, pages = {6402 -- 6411}, year = {2024}, abstract = {Enterprise solutions, specifically enterprise systems, have allowed companies to integrate enterprises' operations throughout. The integration scope of enterprise solutions has increasingly widened, now often covering customer activities, activities along supply chains, and platform ecosystems. IS research has contributed a wide range of explanatory and design knowledge dealing with this class of IS. During the last two decades, many technological as well as managerial/organizational innovations extended the affordances of enterprise solutions—but this broader scope also challenges traditional approaches to their analysis and design. This position paper presents an enterprise-level (i.e., cross-solution) perspective on IS, discusses the challenges of complexity and coordination for IS design and management, presents selected enterprise-level insights for IS coordination and governance, and explores avenues towards a more comprehensive body of knowledge on this important level of analysis.}, language = {en} } @phdthesis{WindirschWoiwode2024, author = {Windirsch-Woiwode, Torben}, title = {Permafrost carbon stabilisation by recreating a herbivore-driven ecosystem}, doi = {10.25932/publishup-62424}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-624240}, school = {Universit{\"a}t Potsdam}, pages = {X, 104, A-57}, year = {2024}, abstract = {With Arctic ground as a huge and temperature-sensitive carbon reservoir, maintaining low ground temperatures and frozen conditions to prevent further carbon emissions that contrib-ute to global climate warming is a key element in humankind's fight to maintain habitable con-ditions on earth. Former studies showed that during the late Pleistocene, Arctic ground condi-tions were generally colder and more stable as the result of an ecosystem dominated by large herbivorous mammals and vast extents of graminoid vegetation - the mammoth steppe. Characterised by high plant productivity (grassland) and low ground insulation due to animal-caused compression and removal of snow, this ecosystem enabled deep permafrost aggrad-ation. Now, with tundra and shrub vegetation common in the terrestrial Arctic, these effects are not in place anymore. However, it appears to be possible to recreate this ecosystem local-ly by artificially increasing animal numbers, and hence keep Arctic ground cold to reduce or-ganic matter decomposition and carbon release into the atmosphere. By measuring thaw depth, total organic carbon and total nitrogen content, stable carbon iso-tope ratio, radiocarbon age, n-alkane and alcohol characteristics and assessing dominant vegetation types along grazing intensity transects in two contrasting Arctic areas, it was found that recreating conditions locally, similar to the mammoth steppe, seems to be possible. For permafrost-affected soil, it was shown that intensive grazing in direct comparison to non-grazed areas reduces active layer depth and leads to higher TOC contents in the active layer soil. For soil only frozen on top in winter, an increase of TOC with grazing intensity could not be found, most likely because of confounding factors such as vertical water and carbon movement, which is not possible with an impermeable layer in permafrost. In both areas, high animal activity led to a vegetation transformation towards species-poor graminoid-dominated landscapes with less shrubs. Lipid biomarker analysis revealed that, even though the available organic material is different between the study areas, in both permafrost-affected and sea-sonally frozen soils the organic material in sites affected by high animal activity was less de-composed than under less intensive grazing pressure. In conclusion, high animal activity af-fects decomposition processes in Arctic soils and the ground thermal regime, visible from reduced active layer depth in permafrost areas. Therefore, grazing management might be utilised to locally stabilise permafrost and reduce Arctic carbon emissions in the future, but is likely not scalable to the entire permafrost region.}, language = {en} } @misc{Wiesmeier2024, type = {Master Thesis}, author = {Wiesmeier, Rebekka}, title = {Cultural conceptualisations relating to DEATH in Irish English from a diachronic perspective}, doi = {10.25932/publishup-63871}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-638719}, school = {Universit{\"a}t Potsdam}, pages = {104}, year = {2024}, abstract = {The present thesis looks at cultural conceptualisations in relation to DEATH in Irish English from a Cultural Linguistic perspective and puts a special focus on the diachronic development of these conceptualisations. For the study, a corpus consisting of 1,400 death notices from the Dublin-based national newspaper The Irish Times from 14 historical periods between 1859 and 2023 was compiled, resulting in a highly specialised 70,000-word corpus. First, the manual qualitative analysis of the death notices produced evidence for eight superordinate cultural conceptualisations surrounding DEATH, namely, in the order of their frequency THE DEAD ARE TO BE REMEMBERED OR REGRETTED, DEATH IS SOMETHING POSITIVE, DEATH IS REST, DEATH IS A JOURNEY, DYING IS THE BEGINNING OF ANOTHER LIFE, DEATH IS (NOT) A TABOO, DEATH IS GOD'S WILL, and DEATH IS THE END. These conceptualisations were derived from linguistic expressions in the death notices that have these conceptualisations as a cognitive basis. Second, the quantitative comparison of the individual conceptualisations detected diachronic variation, which is interconnected with historical and social developments in Ireland. The thesis, therefore, illustrates the applicability of Cultural Linguistics as an adequate method for diachronic studies interested in culturally determined developments of conceptualisations.}, language = {en} } @article{Wentker2024, author = {Wentker, Hermann}, title = {Zwischen F{\"o}deralismus und Zentralismus}, series = {Nationalstaat und F{\"o}deralismus}, journal = {Nationalstaat und F{\"o}deralismus}, editor = {Wirsching, Andreas and Lehmann, Lars}, publisher = {Campus Verlag}, address = {Frankfurt am Main}, isbn = {978-3-593-45486-3}, pages = {133 -- 152}, year = {2024}, language = {de} } @incollection{Weigl2024, author = {Weigl, Johannes}, title = {Margrethe, the 80, and who?}, series = {Plattformen : Grundlagen und Neuordnung des Rechts digitaler Plattformen}, booktitle = {Plattformen : Grundlagen und Neuordnung des Rechts digitaler Plattformen}, editor = {Buchheim, Johannes and Kraetzig, Viktoria and Mendelsohn, Juliane K. and Steinr{\"o}tter, Bj{\"o}rn}, publisher = {Nomos}, address = {Baden-Baden}, isbn = {978-3-7560-1454-5}, doi = {10.5771/9783748919919-97}, pages = {97 -- 124}, year = {2024}, language = {de} } @incollection{Wehmeier2024, author = {Wehmeier, Liz Marla}, title = {Intergovernmental relations in digitalization policy}, series = {New perspectives on intergovernmental relations}, booktitle = {New perspectives on intergovernmental relations}, editor = {Kuhlmann, Sabine and Laffin, Martin and Wayenberg, Ellen and Bergstr{\"o}m, Tomas}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-031-61789-8}, doi = {10.1007/978-3-031-61790-4_9}, pages = {163 -- 185}, year = {2024}, abstract = {Despite the high hopes associated with public sector digitalization, especially in times of crisis, it does not yet hold up to its potential. Both the negotiation and implementation of digitalization policy presents a challenge for all levels of government, requiring extensive coordination efforts. In general, there are conflicting views if more centralized or decentralized policy processes are more effective for coordination—a tension further exacerbated in the context of digitalization policy within multilevel systems, where the imperative of standardization collides with decentralization forces inherent in federalism. Based on the analysis of expert interviews (n = 29), this chapter examines how digitalization policy in the context of the German federal intergovernmental relations context is located and negotiated, and how this relates to local policy implementation. Focusing on the decentralized German tax administration as a case study, the analysis reveals a shift from a conflicted to a multi-layered policy process, underpinned by a mechanism of "concentration without centralization." Strategic and operational competencies are bundled in an institutionalized and legally regulated network for digitalization to achieve necessary standardization of digital infrastructure. Furthermore, the research emphasizes the influence of intergovernmental relations on local implementation and the associated challenges and opportunities.}, language = {en} } @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{VorpahlMerkel2024, author = {Vorpahl, Jenny and Merkel, Linda}, title = {„Oh Gott, k{\"o}nnen wir nicht etwas anderes thematisieren?"}, doi = {10.25932/publishup-63007}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-630075}, pages = {39}, year = {2024}, abstract = {Das in diesem Beitrag vorgestellte Projektseminarkonzept reagiert auf eine wahrgenommene Distanz und Unsicherheit Studierender im Fach Lebensgestaltung-Ethik-Religionskunde gegen{\"u}ber religionsbezogenen Themen. Mittels verschiedener Strategien wurde, ausgehend von der Conceptual Change-Forschung, zur Wahrnehmung und Reflexion des eigenen kulturellen Standortes und der eigenen Konzepte in Bezug auf Religion(en) angeregt. Ihren Lernprozess haben die Studierenden in Arbeitsjournaleintr{\"a}gen festgehalten. Diese Eintr{\"a}ge wurden wiederum mittels einer qualitative Inhaltsanalyse untersucht. Nach der Darstellung der dabei erhobenen religions- und unterrichtsbezogenen Vorstellungen der Studierenden werden im Beitrag Anregungen gegeben, inwiefern die analysierten Befunde als Grundlage f{\"u}r die Verbesserung der Hochschullehre im Fachbereich dienen k{\"o}nnen.}, language = {de} } @book{vonWinter2024, author = {von Winter, Thomas}, title = {Lobbyismus in der deutschen Politik}, publisher = {Verlag Barbara Budrich}, address = {Opladen}, isbn = {978-3-8252-6210-5}, doi = {10.36198/9783838562100}, pages = {383}, year = {2024}, abstract = {Der Band pr{\"a}sentiert eine systematische Aufbereitung empirischer Befunde zum Lobbyismus in Deutschland und vermittelt, wie Lobbyist*innen, Entscheidungstr{\"a}ger*innen und institutionelle Rahmen miteinander interagieren. Untersucht werden politische Aktivit{\"a}ten von sozialen Bewegungen, Verb{\"a}nden, Unternehmen und Beratungsfirmen im Bundestag, der Bundesregierung und der {\"O}ffentlichkeit.}, language = {de} } @phdthesis{Vitagliano2024, author = {Vitagliano, Gerardo}, title = {Modeling the structure of tabular files for data preparation}, doi = {10.25932/publishup-62435}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-624351}, school = {Universit{\"a}t Potsdam}, pages = {ii, 114}, year = {2024}, abstract = {To manage tabular data files and leverage their content in a given downstream task, practitioners often design and execute complex transformation pipelines to prepare them. The complexity of such pipelines stems from different factors, including the nature of the preparation tasks, often exploratory or ad-hoc to specific datasets; the large repertory of tools, algorithms, and frameworks that practitioners need to master; and the volume, variety, and velocity of the files to be prepared. Metadata plays a fundamental role in reducing this complexity: characterizing a file assists end users in the design of data preprocessing pipelines, and furthermore paves the way for suggestion, automation, and optimization of data preparation tasks. Previous research in the areas of data profiling, data integration, and data cleaning, has focused on extracting and characterizing metadata regarding the content of tabular data files, i.e., about the records and attributes of tables. Content metadata are useful for the latter stages of a preprocessing pipeline, e.g., error correction, duplicate detection, or value normalization, but they require a properly formed tabular input. Therefore, these metadata are not relevant for the early stages of a preparation pipeline, i.e., to correctly parse tables out of files. In this dissertation, we turn our focus to what we call the structure of a tabular data file, i.e., the set of characters within a file that do not represent data values but are required to parse and understand the content of the file. We provide three different approaches to represent file structure, an explicit representation based on context-free grammars; an implicit representation based on file-wise similarity; and a learned representation based on machine learning. In our first contribution, we use the grammar-based representation to characterize a set of over 3000 real-world csv files and identify multiple structural issues that let files deviate from the csv standard, e.g., by having inconsistent delimiters or containing multiple tables. We leverage our learnings about real-world files and propose Pollock, a benchmark to test how well systems parse csv files that have a non-standard structure, without any previous preparation. We report on our experiments on using Pollock to evaluate the performance of 16 real-world data management systems. Following, we characterize the structure of files implicitly, by defining a measure of structural similarity for file pairs. We design a novel algorithm to compute this measure, which is based on a graph representation of the files' content. We leverage this algorithm and propose Mondrian, a graphical system to assist users in identifying layout templates in a dataset, classes of files that have the same structure, and therefore can be prepared by applying the same preparation pipeline. Finally, we introduce MaGRiTTE, a novel architecture that uses self-supervised learning to automatically learn structural representations of files in the form of vectorial embeddings at three different levels: cell level, row level, and file level. We experiment with the application of structural embeddings for several tasks, namely dialect detection, row classification, and data preparation efforts estimation. Our experimental results show that structural metadata, either identified explicitly on parsing grammars, derived implicitly as file-wise similarity, or learned with the help of machine learning architectures, is fundamental to automate several tasks, to scale up preparation to large quantities of files, and to provide repeatable preparation pipelines.}, language = {en} } @misc{Verwiebe2024, author = {Verwiebe, Roland}, title = {Social institutions}, series = {Encyclopedia of quality of life and well-being research}, journal = {Encyclopedia of quality of life and well-being research}, editor = {Maggino, Filomena}, publisher = {Springer}, address = {Cham}, isbn = {978-3-031-17298-4}, doi = {10.1007/978-3-031-17299-1_2768}, pages = {6598 -- 6600}, year = {2024}, abstract = {Social institutions are a system of behavioral and relationship patterns that are densely interwoven and enduring and function across an entire society. They order and structure the behavior of individuals in core areas of society and thus have a strong impact on the quality of life of individuals. Institutions regulate the following: (a) family and relationship networks carry out social reproduction and socialization; (b) institutions in the realm of education and training ensure the transmission and cultivation of knowledge, abilities, and specialized skills; (c) institutions in the labor market and economy provide for the production and distribution of goods and services; (d) institutions in the realm of law, governance, and politics provide for the maintenance of the social order; (e) while cultural, media, and religious institutions further the development of contexts of meaning, value orientations, and symbolic codes.}, language = {en} } @incollection{VellaniOehlertWalkenhorst2024, author = {Vellani, Tom{\´a}s and Oehlert, Franziska and Walkenhorst, Janina}, title = {Intergovernmental relations in urban climate policy}, series = {New perspectives on intergovernmental relations}, booktitle = {New perspectives on intergovernmental relations}, editor = {Kuhlmann, Sabine and Laffin, Martin and Wayenberg, Ellen and Bergstr{\"o}m, Tomas}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-031-61789-8}, doi = {10.1007/978-3-031-61790-4_8}, pages = {143 -- 162}, year = {2024}, abstract = {Urban climate strategies have become central tools for steering climate policy in cities. Local policymakers must coordinate a wide range of actors, among them sub-municipal administrative units and neighbouring administrations, in order to ensure legitimate, socially accepted and effective policy. The study examines, from a comparative perspective, how intergovernmental relations (IGR) play out in the formulation and implementation of climate strategies in the metropolitan areas of Berlin and Paris. Embedded in different institutional contexts, both cities followed a trajectory initiated by relatively centralized strategy formulation with an ongoing shift towards more decentralized and coordinated intergovernmental approaches with their respective district administrations. In terms of horizontal IGR, Berlin took a decoupled approach with limited coordination with the state of Brandenburg, whereas Paris was much more closely integrated with its surrounding areas through the inter-municipal metropolis of Greater Paris. Institutional capacity, multilevel coordination and participation demands are identified as three challenges for the existing IGR structures. Addressing these challenges places significant strains on local administrative capacity. The findings highlight the limitations of centralized approaches to IGR at the local level and the importance of aligning the distribution of functional responsibilities with the rights of consultation and participation in climate policy formulation processes.}, language = {en} } @article{UthGutierrezBravoFliessbach2024, author = {Uth, Melanie and Guti{\´e}rrez-Bravo, Rodrigo and Fliessbach, Jan}, title = {On the incompatibility of object fronting and progressive aspect in Yucatec Maya}, series = {Frontiers in language sciences}, volume = {2}, journal = {Frontiers in language sciences}, publisher = {Frontiers Media S.A.}, address = {Lausanne, Switzerland}, issn = {2813-4605}, doi = {10.3389/flang.2023.1286520}, pages = {10}, year = {2024}, abstract = {In this paper, we present data from an elicitation study and a corpus study that support the observation that the Yucatec Maya progressive aspect auxiliary t{\´a}an is replaced by the habitual auxiliary k in sentences with contrastively focused fronted objects. Focus has been extensively studied in Yucatec, yet the incompatibility of object fronting and progressive aspect in Yucatec Maya remains understudied. Both our experimental results and our corpus study point in the direction that this incompatibility may very well be categorical. Theoretically, we take a progressive reading to be derived from an imperfectivity operator in combination with a singular operator, and we propose that this singular operator implicates the negation of event plurality, leading to an exhaustive interpretation which ranks below corrective focus on a contrastive focus scale. This means that, in a sentence with object focus fronting, the use of the marked auxiliary t{\´a}an (as opposed to the more general k) would trigger two contrastive foci, which would be an unlikely and probably dispreferred speech act.}, language = {en} } @article{UthBlestelSanchezMoreano2024, author = {Uth, Melanie and Blestel, {\´E}lodie and S{\´a}nchez Moreano, Santiago}, title = {Labialization of final nasals}, series = {Forma y funci{\´o}n}, volume = {37}, journal = {Forma y funci{\´o}n}, number = {1}, publisher = {Universidad Nacional de Colombia, Facultad de Ciencias Humanas}, address = {Bogot{\´a}}, issn = {2256-5469}, doi = {10.15446/fyf.v37n1.104644}, pages = {1 -- 25}, year = {2024}, abstract = {Comparamos la labializaci{\´o}n no asimiladora de nasales finales en espa{\~n}ol en tres corpus de espa{\~n}ol americano (mexicano, colombiano y paraguayo). Si bien es conocida la labializaci{\´o}n no asimiladora en espa{\~n}ol yucateco, es en gran parte desconocida en otras regiones de habla hispana, por lo que a menudo se atribuye a la influencia maya. Ahora bien, se han se{\~n}alado casualmente h{\´a}bitos de pronunciaci{\´o}n similares tanto en Paraguay como en Colombia. Comparando emp{\´i}ricamente la labializaci{\´o}n en tres corpus constituidos sobre la misma base metodol{\´o}gica, concluimos que la evidencia a favor del contacto ling{\"u}{\´i}stico es como mucho sumamente indirecta. Independientemente de esto, encontramos que la diferencia m{\´a}s marcada es que la tasa de labializaci{\´o}n parece ser determinada por la duraci{\´o}n de la pausa subsiguiente en los datos de la pen{\´i}nsula yucateca, mas no en aquellos de Colombia y Paraguay. Argumentamos que es cierto que el contacto puede eventualmente haber desencadenado el desarrollo de este rasgo en el espa{\~n}ol yucateco, puesto que el espa{\~n}ol actual casi no conoce nasales labiales finales, pero el maya s{\´i}. Sin embargo, el perfil ling{\"u}{\´i}stico (hablantes monoling{\"u}es vs. biling{\"u}es) no tiene ning{\´u}n efecto en nuestros datos yucatecos y paraguayos, y en el total de nuestros datos tampoco encontramos evidencia en favor de la hip{\´o}tesis que el contacto ling{\"u}{\´i}stico hubiera jugado un rol (importante) en el desarrollo de las labiales nasales en las tres variedades.}, language = {es} } @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} } @phdthesis{Tomović2024, author = {Tomović, Jelena}, title = {Sexualit{\"a}t in der Geschichte}, series = {Schriften des Fr{\"u}hneuzeitzentrums Potsdam}, volume = {12}, journal = {Schriften des Fr{\"u}hneuzeitzentrums Potsdam}, publisher = {V\&R unipress - Brill Deutschland GmbH}, address = {G{\"o}ttingen}, isbn = {978-3-8471-1686-8}, issn = {2198-5251}, doi = {10.14220/9783737016865}, school = {Universit{\"a}t Potsdam}, pages = {336}, year = {2024}, abstract = {Jelena Tomović f{\"u}hrt in diesem Band durch die Entwicklungen unserer sexuellen Sprache und Praktiken. Sie zeigt, dass die Art und Weise, wie {\"u}ber Sexualit{\"a}t gesprochen wird, nicht nur ein Spiegelbild, sondern auch ein treibender Faktor f{\"u}r soziale Ver{\"a}nderungen ist. Die Studie stellt die konventionelle Vorstellung von Sexualit{\"a}t in Frage und f{\"u}hrt die Lesenden in eine Welt der subtilen Nuancen und kulturellen Ver{\"a}nderungen. Mit kommunikationstheoretischen Ans{\"a}tzen, dem praxeologischen Ansatz, ihrer sozialkonstruktivistischen Grundannahme und einem klaren Fokus auf Akteur*innen bietet die Autorin eine frische Perspektive auf die Geschichte der Sexualit{\"a}t. Das Buch er{\"o}ffnet neue Wege f{\"u}r die Erforschung und das Verst{\"a}ndnis von Intimit{\"a}t und sozialer Kommunikation.}, language = {de} } @article{TjadenSeutheWeinert2024, author = {Tjaden, Jasper and Seuthe, Miriam and Weinert, Sebastian}, title = {Recruiting refugees to reduce labour shortages in health care professions}, series = {Human resources for health}, volume = {22}, journal = {Human resources for health}, publisher = {Biomed Central}, address = {London}, issn = {1478-4491}, doi = {10.1186/s12960-024-00933-w}, pages = {1 -- 9}, year = {2024}, abstract = {Background Many high-income countries are grappling with severe labour shortages in the healthcare sector. Refugees and recent migrants present a potential pool for staff recruitment due to their higher unemployment rates, younger age, and lower average educational attainment compared to the host society's labour force. Despite this, refugees and recent migrants, often possessing limited language skills in the destination country, are frequently excluded from traditional recruitment campaigns conducted solely in the host country's language. Even those with intermediate language skills may feel excluded, as destination-country language advertisements are perceived as targeting only native speakers. This study experimentally assesses the effectiveness of a recruitment campaign for nursing positions in a German care facility, specifically targeting Arabic and Ukrainian speakers through Facebook advertisements. Methods We employ an experimental design (AB test) approximating a randomized controlled trial, utilizing Facebook as the delivery platform. We compare job advertisements for nursing positions in the native languages of Arabic and Ukrainian speakers (treatment) with the same advertisements displayed in German (control) for the same target group in the context of a real recruitment campaign for nursing jobs in Berlin, Germany. Our evaluation includes comparing link click rates, visits to the recruitment website, initiated applications, and completed applications, along with the unit cost of these indicators. We assess statistical significance in group differences using the Chi-squared test. Results We find that recruitment efforts in the origin language were 5.6 times (Arabic speakers) and 1.9 times (Ukrainian speakers) more effective in initiating nursing job applications compared to the standard model of German-only advertisements among recent migrants and refugees. Overall, targeting refugees and recent migrants was 2.4 (Ukrainians) and 10.8 (Arabic) times cheaper than targeting the reference group of German speakers indicating higher interest among these groups. Conclusions The results underscore the substantial benefits for employers in utilizing targeted recruitment via social media aimed at foreign-language communities within the country. This strategy, which is low-cost and low effort compared to recruiting abroad or investing in digitalization, has the potential for broad applicability in numerous high-income countries with sizable migrant communities. Increased employment rates among underemployed refugee and migrant communities, in turn, contribute to reducing poverty, social exclusion, public expenditure, and foster greater acceptance of newcomers within the receiving society.}, language = {en} } @article{TjadenHeidland2024, author = {Tjaden, Jasper and Heidland, Tobias}, title = {Did Merkel's 2015 decision attract more migration to Germany?}, series = {European journal of political research}, journal = {European journal of political research}, publisher = {Wiley-Blackwell}, address = {Oxford}, issn = {0304-4130}, doi = {10.1111/1475-6765.12669}, pages = {1 -- 17}, year = {2024}, abstract = {In 2015, German Chancellor Angela Merkel decided to allow over a million asylum seekers to cross the border into Germany. One key concern was that her decision would signal an open-door policy to aspiring migrants worldwide - thus further increasing migration to Germany and making the country permanently more attractive to irregular and humanitarian migrants. This 'pull-effect' hypothesis has been a mainstay of policy discussions ever since. With the continued global rise in forced displacement, not appearing welcoming to migrants has become a guiding principle for the asylum policy of many large receiving countries. In this article, we exploit the unique case study that Merkel's 2015 decision provides for answering the fundamental question of whether welcoming migration policies have sustained effects on migration towards destination countries. We analyze an extensive range of data on migration inflows, migration aspirations and online search interest between 2000 and 2020. The results reject the 'pull effect' hypothesis while reaffirming states' capacity to adapt to changing contexts and regulate migration.}, language = {en} } @incollection{Tjaden2024, author = {Tjaden, Jasper}, title = {Social media data and migration research}, series = {How to do migration research : how to research guides}, booktitle = {How to do migration research : how to research guides}, editor = {Zapata-Barrero, Ricard and Vintila, Daniela}, publisher = {Edward Elgar Publishing}, address = {Cheltenham, UK}, isbn = {9781035306855}, doi = {10.4337/9781035306855.00023}, pages = {116 -- 124}, year = {2024}, abstract = {In 2022, there were 4.62 billion social media users worldwide. Social media generates a wealth of data which migration scholars have recently started to explore in pursuit of a variety of methodological and thematic research questions. Scholars use social media data to estimate migration stocks, forecast migration flows, or recruit migrants for targeted online surveys. Social media has also been used to understand how migrants get information about their planned journeys and destination countries, how they organize and mobilize online, how migration issues are politicized online, and how migrants integrate culturally into destination countries by sharing common interests. While social media data drives innovative research, it also poses severe challenges regarding data privacy, data protection, and methodological questions relating to external validity. In this chapter, I briefly introduce various strands of migration research using social media data and discuss the advantages, disadvantages, and opportunities.}, language = {en} } @article{TiberiusWeyland2024, author = {Tiberius, Victor and Weyland, Michael}, title = {Enhancing higher entrepreneurship education: insights from practitioners for curriculum improvement}, series = {The International journal of Management Education}, volume = {22}, journal = {The International journal of Management Education}, number = {2}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1472-8117}, doi = {10.1016/j.ijme.2024.100981}, year = {2024}, abstract = {Curricula for higher entrepreneurship education should meet the requirements of both a solid theoretical foundation and a practical orientation. When these curricula are designed by education specialists, entrepreneurs are usually not consulted. To explore practitioners' curricular recommendations, we conducted 73 semi-structured interviews with entrepreneurs with at least five years of professional experience. We collected 49 items for teaching and learning objectives, 37 for contents, 28 for teaching methods, and 17 for assessment methods. The respondents are convinced that students should acquire solid knowledge in business and management, legal issues, and entrepreneurship. For the latter, only some core aspects are provided. The entrepreneurs put greater emphasis on entrepreneurial skills and attitudes and consider experiential learning designs as most suitable, both in the secure setting of the classroom and in real life. The findings can help reflect on current entrepreneurship curriculum designs.}, language = {en} } @article{TiberiusWeyland2024, author = {Tiberius, Victor and Weyland, Michael}, title = {Improving curricula for higher entrepreneurship education}, series = {Education sciences}, volume = {14}, journal = {Education sciences}, number = {2}, publisher = {MDPI}, address = {Basel}, issn = {2227-7102}, doi = {10.3390/educsci14020130}, pages = {1 -- 17}, year = {2024}, abstract = {Existing curricula for entrepreneurship education do not necessarily represent the best way of teaching. How could entrepreneurship curricula be improved? To answer this question, we aim to identify and rank desirable teaching objectives, teaching contents, teaching methods, and assessment methods for higher entrepreneurship education. To this end, we employ an international real-time Delphi study with an expert panel consisting of entrepreneurship education instructors and researchers. The study reveals 17 favorable objectives, 17 items of content, 25 teaching methods, and 15 assessment methods, which are ranked according to their desirability and the group consensus. We contribute to entrepreneurship curriculum research by adding a normative perspective.}, language = {en} } @article{Thomeczek2024, author = {Thomeczek, Jan Philipp}, title = {B{\"u}ndnis Sahra Wagenknecht (BSW): left-wing authoritarian—and populist?}, series = {Politische Vierteljahresschrift}, journal = {Politische Vierteljahresschrift}, publisher = {Springer VS}, address = {Wiesbaden}, issn = {0032-3470}, doi = {10.1007/s11615-024-00544-z}, pages = {18}, year = {2024}, abstract = {Germany's relatively stable party system faces a new left-authoritarian challenger: Sahra Wagenknecht's B{\"u}ndnis Sahra Wagenknecht (BSW) party. First polls indicate that for the BSW, election results above 10\% are within reach. While Wagenknecht's positions in economic and cultural terms have already been discussed, this article elaborates on another highly relevant feature of Wagenknecht, namely her populist communication. Exploring Wagenknecht's and BSW's populist appeal helps us to understand why the party is said to also have potential among seemingly different voter groups coming from the far right Alternative for Germany (AfD) and far left Die Linke, which share high levels of populist attitudes. To analyse the role that populist communication plays for Wagenknecht and the BSW, this article combines quantitative and qualitative methods. The quantitative analysis covers all speeches (10,000) and press releases (19,000) published by Die Linke members of Parliament (MPs; 2005-2023). The results show that Wagenknecht is the (former) Die Linke MP with the highest share of populist communication. Furthermore, she was also able to convince a group of populist MPs to join the BSW. The article closes with a qualitative analysis of BSW's manifesto that reveals how populist framing plays a major role in this document, in which the political and economic elites are accused of working against the interest of "the majority". Based on this analysis, the classification of the BSW as a populist party seems to be appropriate.}, language = {en} } @article{Thomeczek2024, author = {Thomeczek, Jan Philipp}, title = {The voting potential of B{\"u}ndnis Sahra Wagenknecht}, series = {Political studies review}, journal = {Political studies review}, publisher = {Sage Publications}, address = {London}, issn = {1478-9299}, doi = {10.1177/14789299241264975}, pages = {1 -- 9}, year = {2024}, abstract = {A new challenger seeks to enter the German party system: B{\"u}ndnis Sahra Wagenknecht (BSW). With her new party, former Die Linke politician Sahra Wagenknecht combines a left-authoritarian profile (economically left-leaning, but culturally conservative) with anti-US, pro-Russia and anti-elitist stances. This article provides the first large-n academic study of the voter potential of this new party by using a quasi-representative sample (n = 6,000) drawn from a Voting Advice Application-like dataset that comes from a website designed to explore the B{\"u}ndnis Sahra Wagenknecht's positions. The results show that congruence with foreign policy positions and anti-elitism are strong predictors of the propensity to vote for the B{\"u}ndnis Sahra Wagenknecht. In contrast, social/welfare and immigration policies are less predictive for assessing the party's potential. Among the different socio-demographic groups, the B{\"u}ndnis Sahra Wagenknecht has a strong potential among baby boomers, the less educated and East Germans. Regarding party voters, the B{\"u}ndnis Sahra Wagenknecht is favoured by supporters of some minor parties like dieBasis, Freie W{\"a}hler and Die PARTEI, but also non-voters. Among the established parties, the party's potential is high among Die Linke voters and, to a lesser extent, voters of the Social democrats (SPD) and Alternative for Germany (AfD). A potential below the average is reported for the supporters of the Liberals (FDP) and Christian Democrats (CDU/CSU) and most clearly for Green and Volt voters.}, language = {en} } @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{Szekely2024, author = {Sz{\´e}kely, Andr{\´a}s Csaba}, title = {Long-distance circadian coordination via a phloem-delivered mobile transcript}, school = {Universit{\"a}t Potsdam}, pages = {105}, year = {2024}, language = {en} } @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{Sun2024, author = {Sun, Bowen}, title = {Energy losses in low-offset organic solar cells}, doi = {10.25932/publishup-62143}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-621430}, school = {Universit{\"a}t Potsdam}, pages = {xxi, 190}, year = {2024}, abstract = {Organic solar cells (OSCs) represent a new generation of solar cells with a range of captivating attributes including low-cost, light-weight, aesthetically pleasing appearance, and flexibility. Different from traditional silicon solar cells, the photon-electron conversion in OSCs is usually accomplished in an active layer formed by blending two kinds of organic molecules (donor and acceptor) with different energy levels together. The first part of this thesis focuses on a better understanding of the role of the energetic offset and each recombination channel on the performance of these low-offset OSCs. By combining advanced experimental techniques with optical and electrical simulation, the energetic offsets between CT and excitons, several important insights were achieved: 1. The short circuit current density and fill-factor of low-offset systems are largely determined by field-dependent charge generation in such low-offset OSCs. Interestingly, it is strongly evident that such field-dependent charge generation originates from a field-dependent exciton dissociation yield. 2. The reduced energetic offset was found to be accompanied by strongly enhanced bimolecular recombination coefficient, which cannot be explained solely by exciton repopulation from CT states. This implies the existence of another dark decay channel apart from CT. The second focus of the thesis was on the technical perspective. In this thesis, the influence of optical artifacts in differential absorption spectroscopy upon the change of sample configuration and active layer thickness was studied. It is exemplified and discussed thoroughly and systematically in terms of optical simulations and experiments, how optical artifacts originated from non-uniform carrier profile and interference can manipulate not only the measured spectra, but also the decay dynamics in various measurement conditions. In the end of this study, a generalized methodology based on an inverse optical transfer matrix formalism was provided to correct the spectra and decay dynamics manipulated by optical artifacts. Overall, this thesis paves the way for a deeper understanding of the keys toward higher PCEs in low-offset OSC devices, from the perspectives of both device physics and characterization techniques.}, language = {en} } @misc{Struss2024, author = {Struß, Lukas}, title = {Von Koscher bis Frutarismus}, series = {Du sollst nicht essen: Warum Menschen auf Nahrung verzichten - interdisziplin{\"a}re Zug{\"a}nge}, journal = {Du sollst nicht essen: Warum Menschen auf Nahrung verzichten - interdisziplin{\"a}re Zug{\"a}nge}, editor = {Kollodzeiski, Ulrike and Hafner, Johann Evangelist}, publisher = {Ergon Verlag}, address = {Baden-Baden}, isbn = {978-3-98740-007-0}, doi = {10.5771/9783987400087}, pages = {161 -- 168}, year = {2024}, language = {de} } @phdthesis{Streitboerger2024, author = {Streitb{\"o}rger, Chiara}, title = {Preisalgorithmenkartelle}, series = {Datenrecht und neue Technologien}, volume = {9}, journal = {Datenrecht und neue Technologien}, publisher = {Nomos}, address = {Baden-Baden}, isbn = {978-3-7560-0838-4}, school = {Universit{\"a}t Potsdam}, pages = {325}, year = {2024}, abstract = {Mithilfe von Preisalgorithmen sind Unternehmen in der Lage, automatische und wechselseitige Preisanpassungen vorzunehmen. Dadurch k{\"o}nnen klassische Kartellkonstellationen mangels konspirativer Treffen in den Hintergrund treten. Die Arbeit zeigt auf, unter welchen Voraussetzungen der Einsatz von Preisalgorithmen einen Verstoß gegen das europ{\"a}ische Kartellverbot begr{\"u}nden kann. Dazu werden Fallkonstellationen beleuchtet, die ein algorithmisches Zusammenwirken sowohl unmittelbar zwischen Wettbewerbern als auch mittelbar {\"u}ber einen Dritten begr{\"u}nden. Ferner wird auch auf algorithmenspezifische Compliance-Maßnahmen eingegangen. Schließlich werden die praktischen Herausforderungen bei der Aufdeckung und dem Nachweis solcher Kartelle aufgezeigt.}, language = {de} } @techreport{StieglitzZerfassWlokaetal.2024, author = {Stieglitz, Stefan and Zerfaß, Ansgar and Wloka, Michelle and Clausen, S{\"u}nje}, title = {Communications trend radar 2024}, series = {Communication insights}, volume = {20}, journal = {Communication insights}, publisher = {Academic Society for Management \& Communication}, address = {Leipzig}, issn = {2749-893X}, doi = {10419/284410}, pages = {43}, year = {2024}, abstract = {What does the future hold for corporate communications? The Communications Trend Radar is an applied research project. On an annual basis, it identifies relevant trends for corporate communications from the fields of society, management, and technology. The research team at the University of Potsdam (Professor Stefan Stieglitz, S{\"u}nje Clausen, MS.) and Leipzig University (Professor Ansgar Zerfass, Dr Michelle Wloka) identified the following trends for 2024: Information Inflation, AI Literacy, Workforce Shift, Content Integrity, Decoding Humans. More information on the trends can be found in the Communications Trend Radar Report 2024}, language = {en} } @article{StieglitzMirbabaieDeubeletal.2024, author = {Stieglitz, Stefan and Mirbabaie, Milad and Deubel, Annika and Braun, Lea-Marie and Kissmer, Tobias}, title = {Corrigendum to "The potential of digital nudging to bridge the gap between environmental attitude and behavior in the usage of smart home applications" [International Journal of Information Management 72 (2023) 102665]}, series = {International journal of information management}, volume = {76}, journal = {International journal of information management}, publisher = {Elsevier}, address = {Oxford}, issn = {0268-4012}, doi = {10.1016/j.ijinfomgt.2024.102774}, pages = {2}, year = {2024}, abstract = {We would like to inform the readers and editors of the journal that we have discovered some errors in the references of our paper. These errors were brought to our attention by a reader who noticed some inconsistencies between the citations in the text and the bibliography. Upon further investigation, we realized that our literature management software had mistakenly linked some of the references to wrong or non-existent sources. We apologize for this oversight and assure you that it did not affect the validity or quality of our arguments and results, which were based on the correct sources. Below you find a list of the incorrect references along with their corresponding correct ones. We hope that this correction statement will clarify any confusion or misunderstanding that may have arisen from this mistake. The authors would like to apologise for any inconvenience caused.}, language = {en} } @article{SteinroetterSchauer2024, author = {Steinr{\"o}tter, Bj{\"o}rn and Schauer, Lina Marie}, title = {Lauterkeitsrechtliche Behandlung von Dark Patterns}, series = {Wettbewerb in Recht und Praxis}, volume = {38}, journal = {Wettbewerb in Recht und Praxis}, number = {8}, publisher = {Deutscher Fachverlag}, address = {Frankfurt am Main}, issn = {0172-049X}, pages = {873 -- 882}, year = {2024}, abstract = {Online-Nutzer begegnen regelm{\"a}ßig unterschwelligen manipulativen Designstrategien von Anbietern digitaler Produkte, welche sie zu rechtsgesch{\"a}ftlich relevanten Entscheidungen bewegen sollen, die sie wom{\"o}glich nicht - oder zumindest nicht so - beabsichtigt haben. Man spricht in diesem Zusammenhang von (vielgestaltig denkbaren) „Dark Patterns" (dt. „dunkle Muster"). Der Beitrag geht der Frage nach, inwiefern diese insbesondere lauterkeitsrechtlich zul{\"a}ssig sind.}, language = {de} } @misc{Steegmann2024, type = {Master Thesis}, author = {Steegmann, Helena}, title = {Die Rolle der Frauen in der Revolution 1848/49 - Anregungen f{\"u}r den Politikunterricht}, doi = {10.25932/publishup-63029}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-630290}, school = {Universit{\"a}t Potsdam}, pages = {78}, year = {2024}, abstract = {An die Revolution 1848/49 wird als wesentliches Ereignis deutscher Demokratiegeschichte erinnert; die Beteiligung von Frauen nimmt jedoch bis heute im kollektiven Ged{\"a}chtnis einen untergeordneten Stellenwert ein. Die vorliegende Masterarbeit besch{\"a}ftigt sich aus diesem Grund spezifisch mit der Rolle der Frauen in der Revolution 1848/49 und bietet Anregungen f{\"u}r die Integration des Themas in den Politikunterricht. Wie die Ergebnisse der Arbeit verdeutlichen, nutzten zahlreiche Frauen die Aufbruchsstimmung der 1840er Jahre, um sich auf verschiedene Arten und Weisen politisch zu engagieren. Zwar blieben viele dabei innerhalb der dichotomen Geschlechterteilung verhaftet, welche auf dem sich im 19. Jahrhundert herausbildenden b{\"u}rgerlichen Geschlechtermodell beruhte. Einige {\"u}berschritten diese Grenzen jedoch trotz harter Sanktionen auch bewusst. Sichtbar wird, dass die weibliche Beteiligung zu diesem Zeitpunkt noch nicht zur grunds{\"a}tzlichen Infragestellung der Geschlechterpolarit{\"a}t f{\"u}hrte, aber die Frauen zunehmend den {\"o}ffentlichen Raum auch f{\"u}r sich beanspruchten und damit die Grundlagen f{\"u}r die deutsche Frauenbewegung der folgenden Jahrzehnte schufen. Die schulische Thematisierung der Rolle der Frauen in der Revolution 1848/49 bietet sich sowohl im Geschichts- und Politikunterricht als auch f{\"a}cher{\"u}bergreifend hinsichtlich vielf{\"a}ltiger Ankn{\"u}pfungspunkte an. Die Integration des Themas in den Unterricht kann insbesondere dazu beitragen, das historische Erbe der Anf{\"a}nge der Frauenbewegung zu bewahren, und es zudem f{\"u}r die Vermittlung demokratischer Werte nutzbar machen.}, language = {de} } @phdthesis{Stange2024, author = {Stange, Maike}, title = {A study on Coronin-A and Aip1 function in motility of Dictyostelium discoideum and on Aip1 interchangeability between Dictyostelium discoideum and Arabidopsis thaliana}, doi = {10.25932/publishup-62856}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-628569}, school = {Universit{\"a}t Potsdam}, pages = {xiv, 168}, year = {2024}, abstract = {Actin is one of the most highly conserved proteins in eukaryotes and distinct actin-related proteins with filament-forming properties are even found in prokaryotes. Due to these commonalities, actin-modulating proteins of many species share similar structural properties and proposed functions. The polymerization and depolymerization of actin are critical processes for a cell as they can contribute to shape changes to adapt to its environment and to move and distribute nutrients and cellular components within the cell. However, to what extent functions of actin-binding proteins are conserved between distantly related species, has only been addressed in a few cases. In this work, functions of Coronin-A (CorA) and Actin-interacting protein 1 (Aip1), two proteins involved in actin dynamics, were characterized. In addition, the interchangeability and function of Aip1 were investigated in two phylogenetically distant model organisms. The flowering plant Arabidopsis thaliana (encoding two homologs, AIP1-1 and AIP1-2) and in the amoeba Dictyostelium discoideum (encoding one homolog, DdAip1) were chosen because the functions of their actin cytoskeletons may differ in many aspects. Functional analyses between species were conducted for AIP1 homologs as flowering plants do not harbor a CorA gene. In the first part of the study, the effect of four different mutation methods on the function of Coronin-A protein and the resulting phenotype in D. discoideum was revealed in two genetic knockouts, one RNAi knockdown and a sudden loss-of-function mutant created by chemical-induced dislocation (CID). The advantages and disadvantages of the different mutation methods on the motility, appearance and development of the amoebae were investigated, and the results showed that not all observed properties were affected with the same intensity. Remarkably, a new combination of Selection-Linked Integration and CID could be established. In the second and third parts of the thesis, the exchange of Aip1 between plant and amoeba was carried out. For A. thaliana, the two homologs (AIP1-1 and AIP1-2) were analyzed for functionality as well as in D. discoideum. In the Aip1-deficient amoeba, rescue with AIP1-1 was more effective than with AIP1-2. The main results in the plant showed that in the aip1-2 mutant background, reintroduced AIP1-2 displayed the most efficient rescue and A. thaliana AIP1-1 rescued better than DdAip1. The choice of the tagging site was important for the function of Aip1 as steric hindrance is a problem. The DdAip1 was less effective when tagged at the C-terminus, while the plant AIP1s showed mixed results depending on the tag position. In conclusion, the foreign proteins partially rescued phenotypes of mutant plants and mutant amoebae, despite the organisms only being very distantly related in evolutionary terms.}, language = {en} } @article{StammnitzMuster2024, author = {Stammnitz, Andreas and Muster, Judith}, title = {Wenn die Motivation zu stark gef{\"o}rdert wird}, series = {Changement! : Ver{\"a}nderungsprozesse aktiv gestalten}, journal = {Changement! : Ver{\"a}nderungsprozesse aktiv gestalten}, number = {1}, publisher = {Solutions by Handelsblatt Media Group GmbH}, address = {D{\"u}sseldorf}, issn = {2510-4926}, pages = {50 -- 53}, year = {2024}, abstract = {Um Mitarbeitende langfristig ans Unternehmen zu binden und das Engagement in Teams hochzuhalten, fokussieren sich viele Maßnahmen zur Verbesserung des Betriebsklimas oder der Zufriedenheit auf die Motivation der Mitarbeitenden. Meist ist es jedoch lohnenswerter, die Zumutungen der organisationalen Struktur zuerst anzufassen. H{\"a}ufig liegen dort die gr{\"o}ßten Motivationskiller - und somit auch die Hebel mit dem gr{\"o}ßten Potenzial f{\"u}r mehr Zufriedenheit.}, language = {de} } @incollection{Stam2024, author = {Stam, Fabian}, title = {Das Zweite Gesetz zur Bek{\"a}mpfung der Wirtschaftskriminalit{\"a}t als Geburtsstunde des Computerstrafrechts}, series = {Strafrecht in der alten Bundesrepublik 1949-1990 : besonderer Teil}, booktitle = {Strafrecht in der alten Bundesrepublik 1949-1990 : besonderer Teil}, editor = {Popp, Andreas and Koch, Arnd and Steinberg, Georg}, publisher = {Nomos}, address = {Baden-Baden}, isbn = {978-3-7560-1270-1}, doi = {10.5771/9783748940210-415}, pages = {415 -- 428}, year = {2024}, language = {de} } @phdthesis{Stallasch2024, author = {Stallasch, Sophie E.}, title = {Optimizing power analysis for randomized experiments: Design parameters for student achievement}, doi = {10.25932/publishup-62939}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-629396}, school = {Universit{\"a}t Potsdam}, pages = {ix, 224}, year = {2024}, abstract = {Randomized trials (RTs) are promising methodological tools to inform evidence-based reform to enhance schooling. Establishing a robust knowledge base on how to promote student achievement requires sensitive RT designs demonstrating sufficient statistical power and precision to draw conclusive and correct inferences on the effectiveness of educational programs and innovations. Proper power analysis is therefore an integral component of any informative RT on student achievement. This venture critically hinges on the availability of reasonable input variance design parameters (and their inherent uncertainties) that optimally reflect the realities around the prospective RT—precisely, its target population and outcome, possibly applied covariates, the concrete design as well as the planned analysis. However, existing compilations in this vein show far-reaching shortcomings. The overarching endeavor of the present doctoral thesis was to substantively expand available resources devoted to tweak the planning of RTs evaluating educational interventions. At the core of this thesis is a systematic analysis of design parameters for student achievement, generating reliable and versatile compendia and developing thorough guidance to support apt power analysis to design strong RTs. To this end, the thesis at hand bundles two complementary studies which capitalize on rich data of several national probability samples from major German longitudinal large-scale assessments. Study I applied two- and three-level latent (covariate) modeling to analyze design parameters for a wide spectrum of mathematical-scientific, verbal, and domain-general achievement outcomes. Three vital covariate sets were covered comprising (a) pretests, (b) sociodemographic characteristics, and (c) their combination. The accumulated estimates were additionally summarized in terms of normative distributions. Study II specified (manifest) single-, two-, and three-level models and referred to influential psychometric heuristics to analyze design parameters and develop concise selection guidelines for covariate (a) types of varying bandwidth-fidelity (domain-identical, cross-domain, fluid intelligence pretests; sociodemographic characteristics), (b) combinations quantifying incremental validities, and (c) time lags of 1- to 7-year-lagged pretests scrutinizing validity degradation. The estimates for various mathematical-scientific and verbal achievement outcomes were meta-analytically integrated and employed in precision simulations. In doing so, Studies I and II addressed essential gaps identified in previous repertoires in six major dimensions: Taken together, this thesis accumulated novel design parameters and deliberate guidance for RT power analysis (1) tailored to four German student (sub)populations across the entire school career from Grade 1 to 12, (2) matched to 21 achievement (sub)domains, (3) adjusted for 11 covariate sets enriched by empirically supported guidelines, (4) adapted to six RT designs, (5) suitable for latent and manifest analysis models, (6) which were cataloged along with quantifications of their associated uncertainties. These resources are complemented by a plethora of illustrative application examples to gently direct psychological and educational researchers through pivotal steps in the process of RT design. The striking heterogeneity of the design parameter estimates across all these dimensions constitutes the overall, joint key result of Studies I and II. Hence, this work convincingly reinforces calls for a close match between design parameters and the specific peculiarities of the target RT's research context. All in all, the present doctoral thesis offers a—so far unique—nuanced and extensive toolkit to optimize power analysis for sound RTs on student achievement in the German (and similar) school context. It is of utmost importance that research does not tire to spawn robust evidence on what actually works to improve schooling. With this in mind, I hope that the emerging compendia and guidance contribute to the quality and rigor of our randomized experiments in psychology and education.}, 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} }