@inproceedings{PanzerGronau2024, author = {Panzer, Marcel and Gronau, Norbert}, title = {Enhancing economic efficiency in modular production systems through deep reinforcement learning}, series = {Procedia CIRP}, volume = {121}, booktitle = {Procedia CIRP}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {10.1016/j.procir.2023.09.229}, pages = {55 -- 60}, year = {2024}, abstract = {In times of increasingly complex production processes and volatile customer demands, the production adaptability is crucial for a company's profitability and competitiveness. The ability to cope with rapidly changing customer requirements and unexpected internal and external events guarantees robust and efficient production processes, requiring a dedicated control concept at the shop floor level. Yet in today's practice, conventional control approaches remain in use, which may not keep up with the dynamic behaviour due to their scenario-specific and rigid properties. To address this challenge, deep learning methods were increasingly deployed due to their optimization and scalability properties. However, these approaches were often tested in specific operational applications and focused on technical performance indicators such as order tardiness or total throughput. In this paper, we propose a deep reinforcement learning based production control to optimize combined techno-financial performance measures. Based on pre-defined manufacturing modules that are supplied and operated by multiple agents, positive effects were observed in terms of increased revenue and reduced penalties due to lower throughput times and fewer delayed products. The combined modular and multi-staged approach as well as the distributed decision-making further leverage scalability and transferability to other scenarios.}, language = {en} } @phdthesis{Panzer2024, author = {Panzer, Marcel}, title = {Design of a hyper-heuristics based control framework for modular production systems}, doi = {10.25932/publishup-63300}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-633006}, school = {Universit{\"a}t Potsdam}, pages = {vi, 334}, year = {2024}, abstract = {Volatile supply and sales markets, coupled with increasing product individualization and complex production processes, present significant challenges for manufacturing companies. These must navigate and adapt to ever-shifting external and internal factors while ensuring robustness against process variabilities and unforeseen events. This has a pronounced impact on production control, which serves as the operational intersection between production planning and the shop- floor resources, and necessitates the capability to manage intricate process interdependencies effectively. Considering the increasing dynamics and product diversification, alongside the need to maintain constant production performances, the implementation of innovative control strategies becomes crucial. In recent years, the integration of Industry 4.0 technologies and machine learning methods has gained prominence in addressing emerging challenges in production applications. Within this context, this cumulative thesis analyzes deep learning based production systems based on five publications. Particular attention is paid to the applications of deep reinforcement learning, aiming to explore its potential in dynamic control contexts. Analysis reveal that deep reinforcement learning excels in various applications, especially in dynamic production control tasks. Its efficacy can be attributed to its interactive learning and real-time operational model. However, despite its evident utility, there are notable structural, organizational, and algorithmic gaps in the prevailing research. A predominant portion of deep reinforcement learning based approaches is limited to specific job shop scenarios and often overlooks the potential synergies in combined resources. Furthermore, it highlights the rare implementation of multi-agent systems and semi-heterarchical systems in practical settings. A notable gap remains in the integration of deep reinforcement learning into a hyper-heuristic. To bridge these research gaps, this thesis introduces a deep reinforcement learning based hyper- heuristic for the control of modular production systems, developed in accordance with the design science research methodology. Implemented within a semi-heterarchical multi-agent framework, this approach achieves a threefold reduction in control and optimisation complexity while ensuring high scalability, adaptability, and robustness of the system. In comparative benchmarks, this control methodology outperforms rule-based heuristics, reducing throughput times and tardiness, and effectively incorporates customer and order-centric metrics. The control artifact facilitates a rapid scenario generation, motivating for further research efforts and bridging the gap to real-world applications. The overarching goal is to foster a synergy between theoretical insights and practical solutions, thereby enriching scientific discourse and addressing current industrial challenges.}, language = {en} } @article{Olhoeft2024, author = {Olhoeft, Netanel}, title = {„Und Nahrung labt das Herz der Menschen" (Ps 104,15)}, 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 = {153 -- 156}, year = {2024}, language = {de} } @phdthesis{Offizier2024, author = {Offizier, Frederike}, title = {The biosecurity individual}, series = {American Culture Studies}, volume = {43}, journal = {American Culture Studies}, publisher = {Transcript}, address = {Bielefeld}, isbn = {978-3-8376-7145-2}, issn = {2747-4380}, doi = {10.14361/9783839471456}, pages = {294}, year = {2024}, abstract = {Discoveries in biomedicine and biotechnology, especially in diagnostics, have made prevention and (self)surveillance increasingly important in the context of health practices. Frederike Offizier offers a cultural critique of the intersection between health, security and identity, and explores how the focus on risk and security changes our understanding of health and transforms our relationship to our bodies. Analyzing a wide variety of texts, from life writing to fiction, she offers a critical intervention on how this shift in the medical gaze produces new paradigms of difference and new biomedically facilitated identities: biosecurity individuals.}, language = {en} } @incollection{OehlertKuhlmann2024, author = {Oehlert, Franziska and Kuhlmann, Sabine}, title = {Inter-administrative relations in migrant integration}, 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_5}, pages = {77 -- 101}, year = {2024}, abstract = {Migrant integration is a prime example of intergovernmental coordination and multilevel governance; first because no level of government can carry out this task alone, and second because its cross-cutting nature often leads to fragmented institutional structures that must be overcome. Within the research strand of intergovernmental relations (IGR), the focus has been on executive actors and governmental decision-makers, resulting in an underexposure of the role of public administration, known as inter-administrative relations (IAR). Against this backdrop, we aim to remedy some of the deficits in IGR research by (1) adopting an explicit IAR perspective which systematically addresses the role of local governments; (2) including a comparative dimension in IAR research that accounts for different administrative 'starting conditions' in European countries; and (3) using the policy area of migrant integration as a case in point to empirically investigate developments of institutional convergence and divergence in IAR patterns. It is argued that the coordination of migrant integration in the three countries examined has moved towards more intergovernmental coordination, on the one hand, and that the role of municipalities in this context has been enhanced—varying degrees of (de-)centralization notwithstanding. While certain convergent patterns of inter-governmental coordination have become apparent during the migration crisis, historical path dependencies and administrative cultures still appear to be factors that influence institutional development.}, language = {en} } @phdthesis{Odanga2024, author = {Odanga, Denish Otieno}, title = {Phobic cosmopolitanism}, school = {Universit{\"a}t Potsdam}, pages = {vi ; 211}, year = {2024}, language = {en} } @phdthesis{NovakovicMarinkovic2024, author = {Novakovic-Marinkovic, Nina}, title = {Optical control of bubble domains and skyrmions in thin films}, doi = {10.25932/publishup-64706}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647069}, school = {Universit{\"a}t Potsdam}, pages = {ii, 106}, year = {2024}, abstract = {Laser induced switching offers an attractive possibility to manipulate small magnetic domains for prospective memory and logic devices on ultrashort time scales. Moreover, optical control of magnetization without high applied magnetic fields allows manipulation of magnetic domains individually and locally, without expensive heat dissipation. One of the major challenges for developing novel optically controlled magnetic memory and logic devices is reliable formation and annihilation of non-volatile magnetic domains that can serve as memory bits in ambient conditions. Magnetic skyrmions, topologically nontrivial spin textures, have been studied intensively since their discovery due to their stability and scalability in potential spintronic devices. However, skyrmion formation and, especially, annihilation processes are still not completely understood and further investigation on such mechanisms are needed. The aim of this thesis is to contribute to better understanding of the physical processes behind the optical control of magnetism in thin films, with the goal of optimizing material parameters and methods for their potential use in next generation memory and logic devices. First part of the thesis is dedicated to investigation of all-optical helicity-dependent switching (AO-HDS) as a method for magnetization manipulation. AO-HDS in Co/Pt multilayer and CoFeB alloys with and without the presence of Dzyaloshinskii-Moriya interaction (DMI), which is a type of exchange interaction, have been investigated by magnetic imaging using photo-emission electron microscopy (PEEM) in combination with X-ray magnetic circular dichroism (XMCD). The results show that in a narrow range of the laser fluence, circularly polarized laser light induces a drag on domain walls. This enables a local deterministic transformation of the magnetic domain pattern from stripes to bubbles in out-of-plane magnetized Co/Pt multilayers, only controlled by the helicity of ultrashort laser pulses. The temperature and characteristic fields at which the stripe-bubble transformation occurs has been calculated using theory for isolated magnetic bubbles, using as parameters experimentally determined average size of stripe domains and the magnetic layer thickness. The second part of the work aims at purely optical formation and annihilation of magnetic skyrmions by a single laser pulse. The presence of a skyrmion phase in the investigated CoFeB alloys was first confirmed using a Kerr microscope. Then the helicity-dependent skyrmion manipulation was studied using AO-HDS at different laser fluences. It was found that formation or annihilation individual skyrmions using AO-HDS is possible, but not always reliable, as fluctuations in the laser fluence or position can easily overwrite the helicity-dependent effect of AO-HDS. However, the experimental results and magnetic simulations showed that the threshold values for the laser fluence for the formation and annihilation of skyrmions are different. A higher fluence is required for skyrmion formation, and existing skyrmions can be annihilated by pulses with a slightly lower fluence. This provides a further option for controlling formation and annihilation of skyrmions using the laser fluence. Micromagnetic simulations provide additional insights into the formation and annihilation mechanism. The ability to manipulate the magnetic state of individual skyrmions is of fundamental importance for magnetic data storage technologies. Our results show for the first time that the optical formation and annihilation of skyrmions is possible without changing the external field. These results enable further investigations to optimise the magnetic layer to maximise the energy gap between the formation and annihilation barrier. As a result, unwanted switching due to small laser fluctuations can be avoided and fully deterministic optical switching can be achieved.}, language = {en} } @techreport{Nastasa2024, type = {Working Paper}, author = {Nastasa, Ruxandra}, title = {Germany and the EU's pursuit of gender equality in peace and security}, series = {Staat, Recht und Politik - Forschungs- und Diskussionspapiere}, journal = {Staat, Recht und Politik - Forschungs- und Diskussionspapiere}, number = {16}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2509-6974}, doi = {10.25932/publishup-62850}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-628501}, pages = {15}, year = {2024}, abstract = {The Women, Peace and Security Agenda (WPSA) is an international framework addressing the disproportionate impact of armed conflict on women and girls and promoting their meaningful participation in peacebuilding efforts. The Security Council called on Member States to develop National Action Plans (NAPs) to operationalize the four pillars of the Agenda. This study looks at the relevant steps undertaken by both Germany and the European Union. The author calls for improvements on either level and makes four recommendations.}, language = {en} } @phdthesis{Mueller2024, author = {M{\"u}ller, Daniel}, title = {Identification and monitoring of structures, controls, and evolution dynamics of hydrothermal systems and associated alteration through high-resolution remote sensing and in situ analysis}, doi = {10.25932/publishup-62668}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-626683}, school = {Universit{\"a}t Potsdam}, pages = {205}, year = {2024}, abstract = {Volcanic hydrothermal systems are an integral part of most volcanoes and typically involve a heat source, adequate fluid supply, and fracture or pore systems through which the fluids can circulate within the volcanic edifice. Associated with this are subtle but powerful processes that can significantly influence the evolution of volcanic activity or the stability of the near-surface volcanic system through mechanical weakening, permeability reduction, and sealing of the affected volcanic rock. These processes are well constrained for rock samples by laboratory analyses but are still difficult to extrapolate and evaluate at the scale of an entire volcano. Advances in unmanned aircraft systems (UAS), sensor technology, and photogrammetric processing routines now allow us to image volcanic surfaces at the centimeter scale and thus study volcanic hydrothermal systems in great detail. This thesis aims to explore the potential of UAS approaches for studying the structures, processes, and dynamics of volcanic hydrothermal systems but also to develop methodological approaches to uncover secondary information hidden in the data, capable of indicating spatiotemporal dynamics or potentially critical developments associated with hydrothermal alteration. To accomplish this, the thesis describes the investigation of two near-surface volcanic hydrothermal systems, the El Tatio geyser field in Chile and the fumarole field of La Fossa di Vulcano (Italy), both of which are among the best-studied sites of their kind. Through image analysis, statistical, and spatial analyses we have been able to provide the most detailed structural images of both study sites to date, with new insights into the driving forces of such systems but also revealing new potential controls, which are summarized in conceptual site-specific models. Furthermore, the thesis explores methodological remote sensing approaches to detect, classify and constrain hydrothermal alteration and surface degassing from UAS-derived data, evaluated them by mineralogical and chemical ground-truthing, and compares the alteration pattern with the present-day degassing activity. A significant contribution of the often neglected diffuse degassing activity to the total amount of degassing is revealed and constrains secondary processes and dynamics associated with hydrothermal alteration that lead to potentially critical developments like surface sealing. The results and methods used provide new approaches for alteration research, for the monitoring of degassing and alteration effects, and for thermal monitoring of fumarole fields, with the potential to be incorporated into volcano monitoring routines.}, language = {en} } @misc{Muster2024, author = {Muster, Judith}, title = {Ein Leitbild entwickeln - ohne Scheu vor Heuchelei}, series = {Neues Lernen : Personal.magazin : Inspiration f{\"u}r die Entwicklung von Mensch und Organisation}, volume = {37}, journal = {Neues Lernen : Personal.magazin : Inspiration f{\"u}r die Entwicklung von Mensch und Organisation}, number = {2}, publisher = {Haufe-Lexware GmbH \& Co. KG}, address = {Freiburg}, issn = {2941-3028}, pages = {33 -- 33}, year = {2024}, language = {de} } @misc{Muster2024, author = {Muster, Judith}, title = {Wenn Regeln die Interaktion blockieren}, series = {Neues Lernen : Personal.magazin : Inspiration f{\"u}r die Entwicklung von Mensch und Organisation}, volume = {37}, journal = {Neues Lernen : Personal.magazin : Inspiration f{\"u}r die Entwicklung von Mensch und Organisation}, number = {1}, publisher = {Haufe-Lexware GmbH \& Co. KG}, address = {Freiburg}, issn = {2941-3028}, pages = {39 -- 39}, year = {2024}, language = {de} } @misc{Muster2024, author = {Muster, Judith}, title = {Unterwachung lernen}, series = {Neues Lernen : Personal.magazin : Inspiration f{\"u}r die Entwicklung von Mensch und Organisation}, volume = {37}, journal = {Neues Lernen : Personal.magazin : Inspiration f{\"u}r die Entwicklung von Mensch und Organisation}, number = {3}, publisher = {Haufe-Lexware GmbH \& Co. KG}, address = {Freiburg}, issn = {2941-3028}, pages = {35 -- 35}, year = {2024}, language = {de} } @misc{Munk2024, type = {Master Thesis}, author = {Munk, Sarah Chaya}, title = {The Messianic Jewish Movement and its relation to Torah}, doi = {10.25932/publishup-63644}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-636441}, school = {Universit{\"a}t Potsdam}, pages = {110}, year = {2024}, abstract = {Die vorliegende Arbeit zur Messianisch J{\"u}dischen Bewegung und ihrer Beziehung zur Torah erforscht exemplarisch anhand von 10 Interviews mit ausgew{\"a}hlten Jeshua-gl{\"a}ubigen Juden in Leitungsfunktionen die verschiedenen Aspekte der Beziehung zur Torah. Dabei entsteht durch die Auswahl der Interviewpartner eine f{\"u}r die Bewegung als ganze typische Bandbreite von verschiedenen Positionen, die sich zwar in vielen Punkten {\"u}berlappen, doch vielfach grundverschieden sind und zum Teil einander widersprechen. Besonderes Augenmerk wird auf die theologisch begr{\"u}ndeten, divergenten und sich widersprechenden Positionen gelegt, mit dem Versuch, diese verst{\"a}ndlich zu machen. Nach einer kurzen Einf{\"u}hrung zur Messianisch J{\"u}dischen Bewegung werden Aspekte der Messianisch-J{\"u}dischen Doppelidentit{\"a}t beleuchtet und ihre Relevanz f{\"u}r die Beziehung zur Torah aufgezeigt. Diesem folgt ein {\"U}berblick {\"u}ber die Foren, in denen Jeshua-gl{\"a}ubige Juden {\"u}ber ihre Beziehung zur Torah diskutieren. Die umfangreiche Bibliographie am Ende der Arbeit erlaubt Einblick in einen lebhaften, noch l{\"a}ngst nicht abgeschlossenen Diskussionsprozess innerhalb der Bewegung. Eine knapp kommentierte Begriffsdifferenzierung dient als {\"U}bersicht {\"u}ber die wichtigsten Bedeutungen von Torah, die in der Messianisch J{\"u}dischen Bewegung Verwendung finden. Nach diesen Vorarbeiten wird die Feldstudie pr{\"a}sentiert. Eine Beschreibung des Forschungsfeldes und methodologische Reflexionen sind den Interviews vorangestellt. In den Interviews werden zun{\"a}chst die Assoziationen mit dem Begriff Torah erfasst und die begriffliche F{\"u}llung und Verwendung gekl{\"a}rt. Hier schon zeigen sich einige gravierende Unterschiede. Die theologischen Positionen und Verst{\"a}ndnisse von Torah werden mit dem biographischen Kontext und Hauptwirkungsfeld und mit Nennung der wichtigsten formenden Einfl{\"u}sse dargestellt. Festgehalten werden zun{\"a}chst die Punkte, in denen bei allen {\"U}bereinstimmung herrscht, denn sie dienen als gemeinsame Basis. Alle studieren die schriftliche Torah und erachten diese wie auch den {\"u}brigen Tanach und die Schriften des Neuen Testaments in der vorliegenden Form als g{\"o}ttlich inspiriert und autoritativ verbindlich. Alle haben f{\"u}r sich einen positiven Zugang zur Torah, entsprechend ihrer eigenen Begriffsdefinition, gefunden. F{\"u}r alle weist die schriftliche Torah und der Tanach auf Jeshua hin. Alle sind sich einig, dass Jeshua die Torah nicht außer Kraft gesetzt, sondern erf{\"u}llt hat. Und alle f{\"u}hlen als Jude in irgendeiner Weise eine Verantwortung gegen{\"u}ber der Torah. In Bezug auf das Halten von Geboten sagen alle, dass sich keiner dadurch den Weg in den Himmel erwerben kann. G-ttes Treue gegen{\"u}ber Seinen Verheißungen f{\"u}r Israel wird von allen bekr{\"a}ftigt, doch ob der neue Bund in Jeshua den alten Bund vom Berg Sinai abgel{\"o}st hat, oder ob er einfach zum bereits bestehenden Bund von Sinai hinzukommt, ob rituelle Gebote nach Jeshua's Tod und Auferstehung und der Zerst{\"o}rung des Tempels weiter gehalten werden sollen, ob die Gebote zur Absonderung von den Nationen weiter gehalten werden sollen, ob und unter welchen Bedingungen rabbinischer Halacha gefolgt werden soll und was die Einzelnen in ihren Familien und Gemeinden tun und lehren, dies wird Interview um Interview er{\"o}rtert. Es zeigt sich, wie verschiedene Leseweisen und Gewichtungen von Schl{\"u}sselschriftstellen die verschiedenen Positionen hervorbringen. So wie die Verschiedenartigkeit der Positionen in Beziehung zur Torah bereits ahnen l{\"a}sst, sind die Interview-Partner zur Frage nach einer Messianisch J{\"u}dischen Halacha geteilter Meinung. Doch auch hier wird der Begriff Halacha von den Repr{\"a}sentanten verschieden gef{\"u}llt. Zum Schluss der Feldstudie werden die Versuche, Messianisch J{\"u}dische Halacha zu produzieren und die Probleme und Kritikpunkte, die von anderen Interviewpartnern dagegen ge{\"a}ußert wurden erl{\"a}utert. Den Abschluss der Arbeit bilden ein theologischer Rahmen, der all die verschiedenen Positionen und Beziehungen zur Torah fassen kann und einige Ansatzpunkte f{\"u}r eine m{\"o}gliche Messianisch J{\"u}dische hermeneutische Theologie der Torah.}, language = {en} } @inproceedings{MuchaEngelsWhibleyetal.2024, author = {Mucha, Anne and Engels, James J. and Whibley, Fred and Uegaki, Wataru and Wamsley, James C. and Dawson, Virginia and Gruzdeva, Anastasija and Alhazova, Anna and Golovnina, Anna and Nasyrova, Regina and Sadkovsky, Feudor and Weingartz, Siena and Hohaus, Vera and Cisse, Ousmane and Coppock, Elizabeth and Agodio, Badiba Olivier and Jenks, Peter and Sande, Hannah and Zimmermann, Malte and Berezovskaya, Polina and Chen, Sihwei and Renans, Agata}, title = {Proceedings of TripleA 10}, series = {Proceedings of TripleA}, booktitle = {Proceedings of TripleA}, editor = {Lecavelier des Etangs-Levallois, Jeanne and Geick, Niklas and Grubic, Mira and Bharadwaj, Prarthanaa and Zimmermann, Malte}, doi = {10.25932/publishup-64798}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-647980}, pages = {iv, 158}, year = {2024}, abstract = {The TripleA workshop series was founded in 2014 by linguists from Potsdam and T{\"u}bingen with the aim of providing a platform for researchers that conduct theoretically-informed linguistic fieldwork on meaning. Its focus is particularly on languages that are under-represented in the current research landscape, including but not limited to languages of Africa, Asia, and Australia, hence TripleA. For its 10th anniversary, TripleA returned to the University of Potsdam on the 7-9th of June 2023. The programme included 21 talks dealing with no less than 22 different languages, including three invited talks given by Sihwei Chen (Academia Sinica), J{\´e}r{\´e}my Pasquereau (Laboratoire de Linguistique de Nantes, CNRS) and Agata Renans (Ruhr-Universit{\"a}t Bochum). Nine of these (invited or peer-reviewed) talks are featured in this volume.}, language = {en} } @phdthesis{Mostafa2024, author = {Mostafa, Amr}, title = {DNA origami nanoforks: A platform for cytochrome c single molecule surface enhanced Raman spectroscopy}, doi = {10.25932/publishup-63548}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-635482}, school = {Universit{\"a}t Potsdam}, pages = {xi, 90, x}, year = {2024}, abstract = {This thesis presents a comprehensive exploration of the application of DNA origami nanofork antennas (DONAs) in the field of spectroscopy, with a particular focus on the structural analysis of Cytochrome C (CytC) at the single-molecule level. The research encapsulates the design, optimization, and application of DONAs in enhancing the sensitivity and specificity of Raman spectroscopy, thereby offering new insights into protein structures and interactions. The initial phase of the study involved the meticulous optimization of DNA origami structures. This process was pivotal in developing nanoscale tools that could significantly enhance the capabilities of Raman spectroscopy. The optimized DNA origami nanoforks, in both dimer and aggregate forms, demonstrated an enhanced ability to detect and analyze molecular vibrations, contributing to a more nuanced understanding of protein dynamics. A key aspect of this research was the comparative analysis between the dimer and aggregate forms of DONAs. This comparison revealed that while both configurations effectively identified oxidation and spin states of CytC, the aggregate form offered a broader range of detectable molecular states due to its prolonged signal emission and increased number of molecules. This extended duration of signal emission in the aggregates was attributed to the collective hotspot area, enhancing overall signal stability and sensitivity. Furthermore, the study delved into the analysis of the Amide III band using the DONA system. Observations included a transient shift in the Amide III band's frequency, suggesting dynamic alterations in the secondary structure of CytC. These shifts, indicative of transitions between different protein structures, were crucial in understanding the protein's functional mechanisms and interactions. The research presented in this thesis not only contributes significantly to the field of spectroscopy but also illustrates the potential of interdisciplinary approaches in biosensing. The use of DNA origami-based systems in spectroscopy has opened new avenues for research, offering a detailed and comprehensive understanding of protein structures and interactions. The insights gained from this research are expected to have lasting implications in scientific fields ranging from drug development to the study of complex biochemical pathways. This thesis thus stands as a testament to the power of integrating nanotechnology, biochemistry, and spectroscopic techniques in addressing complex scientific questions.}, language = {en} } @incollection{Moser2024, author = {Moser, Natalie}, title = {Historisch von der nahen Zukunft erz{\"a}hlen}, series = {Zukunft - Zukunftswissen - Zukunfts{\"a}sthetik}, booktitle = {Zukunft - Zukunftswissen - Zukunfts{\"a}sthetik}, publisher = {Rombach Wissenschaft}, address = {Baden-Baden}, isbn = {978-3-96821-870-0}, doi = {10.5771/9783968218717-85}, pages = {85 -- 106}, year = {2024}, language = {de} } @misc{Moser2024, author = {Moser, Natalie}, title = {Elmiger, Dorothee: Aus der Zuckerfabrik}, series = {Kindlers Literatur Lexikon (KLL)}, journal = {Kindlers Literatur Lexikon (KLL)}, publisher = {J.B. Metzler}, address = {Stuttgart}, isbn = {978-3-476-05728-0}, doi = {10.1007/978-3-476-05728-0_23513-2}, pages = {2}, year = {2024}, language = {de} } @phdthesis{Montulet2024, author = {Montulet, Orianne}, title = {Functional characterization of putative interactors of the Cellulose Synthase Complex}, school = {Universit{\"a}t Potsdam}, pages = {160}, year = {2024}, abstract = {The plant cell wall plays several crucial roles during plant development with its integrity acting as key signalling component for growth regulation during biotic and abiotic stresses. Cellulose microfibrils, the principal load-bearing components is the major component of the primary cell wall, whose synthesis is mediated by microtubule-associated CELLULOSE SYNTHASE (CESA) COMPLEXES (CSC). Previous studies have shown that CSC interacting proteins COMPANION OF CELLULOSE SYNTHASE (CC) facilitate sustained cellulose synthesis during salt stress by promoting repolymerization of cortical microtubules. However, our understanding of cellulose synthesis during salt stress remains incomplete. In this study, a pull-down of CC1 protein led to the identification of a novel interactor, termed LEA-like. Phylogenetic analysis revealed that LEA-like belongs to the LATE EMBRYOGENESIS ABUNDANT (LEA) protein family, specifically to the LEA_2 subgroup, showing a close relationship with the CC proteins. Roots of the double mutants lea-like and its closest homolog emb3135 exhibited hypersensitivity when grown on cellulose synthesis inhibitors. Further analysis of higher-order mutants of lea-like, emb3135, and cesa6 demonstrated a genetic interaction between them indicating a significant role in cellulose synthesis. Live-cell imaging revealed that both LEA-like and EMB3135 migrated with the CSC at the plasma membrane along microtubule tracks in control and oryzalin-treated conditions which destabilize microtubules, suggesting a tight interaction. Investigation of fluorescently labeled lines of different domains of the LEA-like protein revealed that the N-terminal cytosolic domain of LEA-like colocalizes with microtubules, suggesting a physical association between the two. Considering the established role of LEA proteins in abiotic stress tolerance, we performed phenotypic analysis of the mutant under various stresses. Growth of double mutants of lea-like and emb3135 on NaCl containing media resulted in swelling of root cell indicating a putative role in salt stress tolerance. Supportive of this the quadruple mutant, lacking LEA-like, EMB3135, CC1, and CC2 proteins, exhibited a severe root growth defect on NaCl media compared to control conditions. Live-cell imaging revealed that under salt stress, the LEA-like protein forms aggregates in the plasma membrane. In conclusion, this study has unveiled two novel interactors of the CSC that act with the CC proteins that regulate plant growth in response to salt stress providing new insights into the intricate regulation of cellulose synthesis, particularly under such conditions.}, language = {en} } @book{MitschEllbogen2024, author = {Mitsch, Wolfgang and Ellbogen, Klaus}, title = {F{\"a}lle zum Strafprozessrecht}, series = {Klausurenkurs Juristische {\"U}bungsb{\"u}cher}, journal = {Klausurenkurs Juristische {\"U}bungsb{\"u}cher}, edition = {3. neu bearbeitete Auflage}, publisher = {Verlag Franz Vahlen}, address = {M{\"u}nchen}, isbn = {978-3-8006-7003-1}, pages = {XVI, 212}, year = {2024}, abstract = {Das Werk bietet eine umfassende Fallsammlung zum Strafprozessrecht. Dabei werden jeder Falll{\"o}sung eine umfassende gutachterliche Vor{\"u}berlegung sowie eine L{\"o}sungsgliederung vorangestellt. Die eigentliche ausf{\"u}hrliche L{\"o}sung enth{\"a}lt zus{\"a}tzlich Klausurtipps und Vertiefungshinweise.}, language = {de} } @incollection{Mitsch2024, author = {Mitsch, Wolfgang}, title = {\S 115 Ordnungswidrigkeiten}, series = {BeckOK Informations- und Medienrecht}, booktitle = {BeckOK Informations- und Medienrecht}, editor = {Gersdorf, Hubertus and Paal, Boris P.}, edition = {44. Edition, Stand: 01.11.2023}, publisher = {Beck}, address = {M{\"u}nchen}, year = {2024}, language = {de} } @article{Mitsch2024, author = {Mitsch, Wolfgang}, title = {Entkriminalisierung des unerlaubten Entfernens vom Unfallort}, series = {Deutsches Autorecht}, volume = {94}, journal = {Deutsches Autorecht}, number = {1}, publisher = {Juristische Zentrale des ADAC e.V.}, address = {M{\"u}nchen}, issn = {0012-1231}, pages = {15 -- 19}, year = {2024}, abstract = {Der Ruf nach gesetzgeberischen Reparaturmaßnahmen am unbestrittenermaßen missgl{\"u}ckten \S STGB \S 142 StGB ist ein kriminalpolitischer Dauerbrenner. Neu sind recht konkrete Vorschl{\"a}ge aus dem Bundesministerium der Justiz zu einer Reduktion des objektiven Tatbestandes, durch die ein betr{\"a}chtlicher Anteil der Anwendungsf{\"a}lle k{\"u}nftig in das Ordnungswidrigkeitenrecht verlagert werden soll. Unf{\"a}lle, die „reine Sachsch{\"a}den" verursachen, sollen eine nur noch bußgeldbewehrte Warte- und Feststellungserm{\"o}glichungspflicht ausl{\"o}sen. Die im Vorstadium eines Gesetzesentwurfs publizierten ministeriellen Ideen haben ein geteiltes Echo - Zustimmung und Ablehnung - ausgel{\"o}st. Der Beitrag befasst sich nicht mit der umstrittenen kriminalpolitischen Vern{\"u}nftigkeit der Pl{\"a}ne, zeigt aber einige strafrechtsdogmatische Aspekte auf, die bei der Neufassung des Gesetzeswortlauts zu beachten sein werden.}, language = {de} } @article{Mitsch2024, author = {Mitsch, Wolfgang}, title = {Fortschritte im Notwehrrecht?}, series = {KriPoZ : kriminalpolitische Zeitschrift}, volume = {9}, journal = {KriPoZ : kriminalpolitische Zeitschrift}, number = {3}, publisher = {Universit{\"a}t zu K{\"o}ln}, address = {K{\"o}ln}, issn = {2509-6826}, pages = {148 -- 156}, year = {2024}, abstract = {Der untenstehende Text ist eine recht spontane Reaktion auf Bemerkungen, die j{\"u}ngst von den Kollegen Armin Engl{\"a}nder und Christian R{\"u}ckert zu einem Kodifizierungsvorschlag f{\"u}r die Regelungsthemen Notwehr, Notwehrexzess und subjektives Rechtfertigungselement in der Zeitschrift „Goltdammer's Archiv f{\"u}r Strafrecht" pr{\"a}sentiert wurden. Den Entwurfstext hat eine - kleine - Gruppe von Strafrechtslehrern erarbeitet. Er wurde letztes Jahr mittels eines Aufsatzes von Elisa Hoven und Wolfgang Mitsch - ebenfalls im „Goltdammer's Archiv" - vorgestellt und erl{\"a}utert. Engl{\"a}nder und R{\"u}ckert {\"a}ußern stellenweise Zustimmung, {\"u}ben aber auch zu vielen Punkten des Entwurfs und seiner Begr{\"u}ndung Kritik. Da der hiesige Verfasser sowohl an der Entwicklung des Entwurfstextes als auch an dem genannten GA-Aufsatz als Ko-Autor beteiligt war, m{\"o}chte er - im Folgenden: ich - zu einigen der Kritiken Stellung nehmen.}, language = {de} } @article{Mitsch2024, author = {Mitsch, Wolfgang}, title = {Strafbare Verabredung zu verbotenen Kraftfahrzeugrennen}, series = {Neue Zeitschrift f{\"u}r Verkehrsrecht}, volume = {36}, journal = {Neue Zeitschrift f{\"u}r Verkehrsrecht}, number = {8}, publisher = {C.H. Beck}, address = {M{\"u}nchen}, issn = {0934-1307}, pages = {373 -- 377}, year = {2024}, abstract = {Illegales Wettrasen auf {\"o}ffentlichen Straßen besch{\"a}ftigt Staatsanwaltschaften und Strafgerichte, wenn dieses Ereignis stattgefunden und oftmals auch schwere Sch{\"a}den verursacht hat. Jeder hat noch das Verfahren um das t{\"o}dliche Geschehen auf der Berliner Tauentzienstrasse im Ged{\"a}chtnis und vor Augen. Naturgem{\"a}ß geht einer solchen Aktion stets eine - wenn auch nur kurze und evtl. nonverbale (z. B. Kopfnicken, Handzeichen) - Verst{\"a}ndigung der Teilnehmer voraus. Praktisch mag die Frage keine Bedeutung haben, theoretisch interessant ist sie aber schon: Ist bereits diese Kommunikation in der Anbahnungsphase m{\"o}glicherweise strafbares Verhalten? Praktisch w{\"u}rde sich die M{\"o}glichkeit der Strafverfolgung darauf beschr{\"a}nken, wenn aus irgendeinem Grund das Rennen dann doch nicht stattgefunden hat. Daher sollen hier - weil das nach meiner Beobachtung noch nirgends geschehen ist - zu diesem Thema ein paar kl{\"a}rende Ausf{\"u}hrungen gemacht werden.}, language = {de} } @misc{Mitsch2024, author = {Mitsch, Wolfgang}, title = {Fischer Strafgesetzbuch}, series = {Neue juristische Wochenschrift}, volume = {76}, journal = {Neue juristische Wochenschrift}, number = {10}, publisher = {C.H. Beck}, address = {M{\"u}nchen}, issn = {0341-1915}, pages = {639 -- 640}, year = {2024}, language = {de} } @phdthesis{Mirzaee2024, author = {Mirzaee, Zohreh}, title = {Ecology and phylogeny of Mantodea of Iran and adjacent areas}, doi = {10.25932/publishup-65273}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-652739}, school = {Universit{\"a}t Potsdam}, pages = {187}, year = {2024}, abstract = {Mantodea, commonly known as mantids, have captivated researchers owing to their enigmatic behavior and ecological significance. This order comprises a diverse array of predatory insects, boasting over 2,400 species globally and inhabiting a wide spectrum of ecosystems. In Iran, the mantid fauna displays remarkable diversity, yet numerous facets of this fauna remain poorly understood, with a significant dearth of systematic and ecological research. This substantial knowledge gap underscores the pressing need for a comprehensive study to advance our understanding of Mantodea in Iran and its neighboring regions. The principal objective of this investigation was to delve into the ecology and phylogeny of Mantodea within these areas. To accomplish this, our research efforts concentrated on three distinct genera within Iranian Mantodea. These genera were selected due to their limited existing knowledge base and feasibility for in-depth study. Our comprehensive methodology encompassed a multifaceted approach, integrating morphological analysis, molecular techniques, and ecological observations. Our research encompassed a comprehensive revision of the genus Holaptilon, resulting in the description of four previously unknown species. This extensive effort substantially advanced our understanding of the ecological roles played by Holaptilon and refined its systematic classification. Furthermore, our investigation into Nilomantis floweri expanded its known distribution range to include Iran. By conducting thorough biological assessments, genetic analyses, and ecological niche modeling, we obtained invaluable insights into distribution patterns and genetic diversity within this species. Additionally, our research provided a thorough comprehension of the life cycle, behaviors, and ecological niche modeling of Blepharopsis mendica, shedding new light on the distinctive characteristics of this mantid species. Moreover, we contributed essential knowledge about parasitoids that infect mantid ootheca, laying the foundation for future studies aimed at uncovering the intricate mechanisms governing ecological and evolutionary interactions between parasitoids and Mantodea.}, language = {en} } @inproceedings{MirbabaieRieskampHofeditzetal.2024, author = {Mirbabaie, Milad and Rieskamp, Jonas and Hofeditz, Lennart and Stieglitz, Stefan}, title = {Breaking down barriers}, 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 = {Department of IT Management Shidler College of Business University of Hawaii}, address = {Honolulu, HI}, isbn = {978-0-99813-317-1}, pages = {672 -- 681}, year = {2024}, abstract = {Many researchers hesitate to provide full access to their datasets due to a lack of knowledge about research data management (RDM) tools and perceived fears, such as losing the value of one's own data. Existing tools and approaches often do not take into account these fears and missing knowledge. In this study, we examined how conversational agents (CAs) can provide a natural way of guidance through RDM processes and nudge researchers towards more data sharing. This work offers an online experiment in which researchers interacted with a CA on a self-developed RDM platform and a survey on participants' data sharing behavior. Our findings indicate that the presence of a guiding and enlightening CA on an RDM platform has a constructive influence on both the intention to share data and the actual behavior of data sharing. Notably, individual factors do not appear to impede or hinder this effect.}, language = {en} } @phdthesis{Mielke2024, author = {Mielke, Lucas}, title = {Schernikau und die Poetik der Affirmation}, series = {Deutsche Literatur : Studien und Quellen}, volume = {48}, journal = {Deutsche Literatur : Studien und Quellen}, publisher = {De Gruyter}, address = {Berlin ; Boston, Mass}, isbn = {9783111441221}, issn = {2198-932X}, doi = {10.1515/9783111441221}, pages = {vi; 241}, year = {2024}, abstract = {Die Arbeit ist der Versuch einer zusammenh{\"a}ngenden historisierenden Lekt{\"u}re der wichtigsten Essays und fiktionalen Prosatexte des Schriftstellers Ronald M. Schernikau (1960-1991). Der schwule Kommunist erkl{\"a}rte das Lob zur k{\"u}nstlerischen Strategie, formulierte gleichzeitig eine avancierte Gesellschaftskritik und verteidigte den realen Sozialismus auch gegen die Realit{\"a}t. Im Verlauf mehrerer Einzelstudien werden Themen, Schreibweisen und schließlich auch die Widerspr{\"u}che, in die sich ein solches Projekt verstricken muss, analysiert. Vor dem Hintergrund zentraler politischer und {\"a}sthetischer Debatten der 1970er und -80er Jahre werden so die Umrisse einer politischen Poetik nachgezeichnet, die der Sch{\"o}nheit verpflichtet ist. Ein weiteres Augenmerk liegt dabei auf theorie- und bewegungsgeschichtlichen Aspekten. Gibt es ein schwules Schreiben jenseits einer auktorialen Selbstpositionierung? Was w{\"u}rde eine kommunistische Literatur auszeichnen? Schernikau verhandelt poetologische Fragen um die Konzepte Autorschaft, Realismus und Werk, die nicht nur an gegenw{\"a}rtige Diskurse anschlussf{\"a}hig sind, sondern auf die Kernprobleme der politischen Literatur des Zwanzigsten Jahrhunderts verweisen.}, language = {de} } @misc{MiechielsenSchmidt2024, author = {Miechielsen, Milena and Schmidt, Katja}, title = {Leitfaden f{\"u}r die Erstellung von kommunalen Aktionspl{\"a}nen zur Steigerung der urbanen Klimaresilienz}, doi = {10.25932/publishup-63057}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-630578}, pages = {85}, year = {2024}, abstract = {Die durch Klimaver{\"a}nderungen hervorgerufenen Auswirkungen auf Menschen und Umwelt werden immer offensichtlicher: Neben der gesundheitlichen Gef{\"a}hrdung durch Hitzewellen, die deutschlandweit seit einigen Jahren eine steigende Rate an Todes- und Krankheitsf{\"a}llen zur Folge hat sind in den letzten Jahren zunehmend Starkniederschl{\"a}ge und daraus resultierenden {\"U}berschwemmungen bzw. Sturzfluten aufgetreten. Diese ziehen zum Teil immensen wirtschaftlichen Sch{\"a}den, aber auch Beeintr{\"a}chtigungen f{\"u}r die menschliche Gesundheit - sowohl physisch als auch psychisch - sowie gar Todesopfer nach sich. Es ist davon auszugehen, dass diese Extremwetterereignisse zuk{\"u}nftiger noch h{\"a}ufiger auftreten werden. Um die Bev{\"o}lkerung besser vor den Folgen dieser Wetterextreme zu sch{\"u}tzen, sind neben Klimaschutzmaßnahmen auch Vorsorge- und Anpassungsmaßnahmen zur Steigerung der kommunalen Klimaresilienz dringend notwendig. Dazu bedarf es einerseits einer Auseinandersetzung mit den eigenen kommunalen Risiken und daraus resultierenden Handlungsbedarfen, und andererseits eines interdisziplin{\"a}ren, querschnittsorientierten und prozessorientierten Planens und Handelns. Aktionspl{\"a}ne sollen diese beiden Aspekte b{\"u}ndeln. In den letzten Jahren sind einige kommunale und kommunen{\"u}bergreifende (Hitze-) aufgestellt worden. Diese unterscheiden sich jedoch in ihrem Inhalt und Umfang zum Teil erheblich. Mit dem vorliegenden Leitfaden soll eine effektive Hilfestellung geschaffen werden, um Kommunen bzw. die kommunale Verwaltung auf dem Weg zum eigenen Aktionsplan zu unterst{\"u}tzt. Dabei fokussiert der Leitfaden auf die Herausforderungen, die sich durch vermehrte Hitze- und Starkregenereignisse ergeben. Er st{\"u}tzt sich auf schon vorhandene Arbeitshilfen, Handlungsempfehlungen, Leitf{\"a}den und weitere Hinweise und verweist an vielen Stellen auch darauf. So soll ein praxistauglicher Leitfaden entstehen, der flexibel anwendbar ist. Mit Hilfe des vorliegenden Leitfadens k{\"o}nnen Kommunen ihre Aktivit{\"a}ten auf Hitze oder Starkregen fokussieren oder einen umfassenden Aktionsplan f{\"u}r beide Themenbereiche erstellen.}, language = {de} } @phdthesis{Melliger2024, author = {Melliger, Marc Andr{\´e}}, title = {Effects of exposing renewables to the market}, school = {Universit{\"a}t Potsdam}, pages = {xi, 139}, year = {2024}, abstract = {Electricity production contributes to a significant share of greenhouse gas emissions in Europe and is thus an important driver of climate change. To fulfil the Paris Agreement, the European Union (EU) needs a rapid transition to a fully decarbonised power production system. Presumably, such a system will be largely based on renewables. So far, many EU countries have supported a shift towards renewables such as solar and wind power using support schemes, but the economic and political context is changing. Renewables are now cheaper than ever before and have become cost-competitive with conventional technologies. Therefore, European policymakers are striving to better integrate renewables into a competitive market and to increase the cost-effectiveness of the expansion of renewables. The first step was to replace previous fixed-price schemes with competitive auctions. In a second step, these auctions have become more technology-open. Finally, some governments may phase out any support for renewables and fully expose them to the competitive power market. However, such policy changes may be at odds with the need to rapidly expand renewables and meet national targets due to market characteristics and investors' risk perception. Without support, price risks are higher, and it may be difficult to meet an investor's income expectations. Furthermore, policy changes across different countries could have unexpected effects if power markets are interconnected and investors able to shift their investments. Finally, in multi-technology auctions, technologies may dominate, which can be a risk for long-term power system reliability. Therefore, in my thesis, I explore the effects of phasing out support policies for renewables, of coordinating these phase-outs across countries, and of using multi-technology designs. I expand the public policy literature about investment behaviour and policy design as well as policy change and coordination, and I further develop an agent-based model. The main questions of my thesis are what the cost and deployment effects of gradually exposing renewables to market forces would be and how coordination between countries affects investors' decisions and market prices.. In my three contributions to the academic literature, I use different methods and come to the following results. In the first contribution, I use a conjoint analysis and market simulation to evaluate the effects of phasing out support or reintroducing feed-in tariffs from the perspective of investors. I find that a phase-out leads to investment shifts, either to other still-supported technologies or to other countries that continue to offer support. I conclude that the coordination of policy changes avoids such shifts.. In the second contribution, I integrate the empirically-derived preferences from the first contribution in to an agent-based power system model of two countries to simulate the effects of ending auctions for renewables. I find that this slows the energy transition, and that cross-border effects are relevant. Consequently, continued support is necessary to meet the national renewables targets. In the third contribution, I analyse the outcome of past multi-technology auctions using descriptive statistics, regression analysis as well as case study comparisons. I find that the outcomes are skewed towards single technologies. This cannot be explained by individual design elements of the auctions, but rather results from context-specific and country-specific characteristics. Based on this, I discuss potential implications for long-term power system reliability. The main conclusions of my thesis are that a complete phase-out of renewables support would slow down the energy transition and thus jeopardize climate targets, and that multi-technology auctions may pose a risk for some countries, especially those that cannot regulate an unbalanced power plant portfolio in the long term. If policymakers decide to continue supporting renewables, they may consider adopting technology-specific auctions to better steer their portfolio. In contrast, if policymakers still want to phase out support, they should coordinate these policy changes with other countries. Otherwise, overall transition costs can be higher, because investment decisions shift to still-supported but more expensive technologies.}, language = {en} } @article{MeischnerAlMousawiHellerHartensteinetal.2024, author = {Meischner-Al-Mousawi, Maja and Heller, Luise and Hartenstein, Sven and Frost, Jonas and Philipp, Aaron and Hinz, Sylvette}, title = {Suizide in deutschen Gef{\"a}ngnissen w{\"a}hrend der COVID-19-Pandemie}, series = {Forensische Psychiatrie, Psychologie, Kriminologie}, volume = {18}, journal = {Forensische Psychiatrie, Psychologie, Kriminologie}, number = {2}, publisher = {Steinkopff}, address = {Darmstadt}, issn = {1862-7072}, doi = {10.1007/s11757-024-00827-6}, pages = {106 -- 116}, year = {2024}, abstract = {Das Risiko, durch einen Suizid im Gef{\"a}ngnis zu versterben, ist erh{\"o}ht. W{\"a}hrend der COVID-19-Pandemie wurden zum Infektionsschutz zahlreiche Maßnahmen, die beispielsweise eine deutliche Minderung der Kontakt- und Behandlungsangebote zur Folge hatten, eingef{\"u}hrt. Im Rahmen eines Kohortenvergleichs der Suizide und ausgew{\"a}hlter Merkmale der Suizident:innen in den Zeitr{\"a}umen vom April 2017 bis zum Dezember 2019 sowie vom April 2020 bis zum Dezember 2022 wird untersucht, ob es eine Ver{\"a}nderung der Suizide w{\"a}hrend der Pandemie gab. Im Ergebnis zeigen sich eine Zunahme der Suizide w{\"a}hrend der Pandemie, insbesondere in den ersten 14 Tagen der Haft, und eine Zunahme der Suizide von Suizident:innen mit erh{\"o}hter Vulnerabilit{\"a}t. Keine Unterschiede wurden in den allgemeinen Risikomerkmalen f{\"u}r Suizide im Gef{\"a}ngnis festgestellt. Es ergeben sich Hinweise auf eine suizidpr{\"a}ventive Wirkung der Kontakt- und Behandlungsangebote. Daraus ergibt sich die Notwendigkeit, intensivere Pr{\"a}ventionsangebote f{\"u}r Gefangene mit erh{\"o}hter Vulnerabilit{\"a}t bzw. geringerer Resilienz anzubieten.}, language = {de} } @book{MeinelMichaelDengeletal.2024, author = {Meinel, Christoph and Michael, Galbas and Dengel, Andreas and Wendlandt, Matthias}, title = {Konzeption eines integrativen Schulfaches „Digitale Welt" f{\"u}r hessische Schulen}, number = {160}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-582-8}, issn = {1613-5652}, doi = {10.25932/publishup-63911}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-639113}, publisher = {Universit{\"a}t Potsdam}, pages = {34}, year = {2024}, abstract = {Um in der Schule bereits fr{\"u}hzeitig ein Verst{\"a}ndnis f{\"u}r informatische Prozesse zu vermitteln wurde das neue Informatikfach Digitale Welt f{\"u}r die Klassenstufe 5 konzipiert mit der bundesweit einmaligen Verbindung von Informatik mit anwendungsbezogenen und gesellschaftlich relevanten Bez{\"u}gen zur {\"O}kologie und {\"O}konomie. Der Technische Report gibt eine Handreichung zur Einf{\"u}hrung des neuen Faches.}, language = {de} } @phdthesis{Mayer2024, author = {Mayer, Selina}, title = {Understanding the impact of design thinking on organizations and individuals}, doi = {10.25932/publishup-65154}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-651541}, school = {Universit{\"a}t Potsdam}, pages = {xi, 125}, year = {2024}, abstract = {Organizations are investing billions on innovation and agility initiatives to stay competitive in their increasingly uncertain business environments. Design Thinking, an innovation approach based on human-centered exploration, ideation and experimentation, has gained increasing popularity. The market for Design Thinking, including software products and general services, is projected to reach 2.500 million \$ (US-Dollar) by 2028. A dispersed set of positive outcomes have been attributed to Design Thinking. However, there is no clear understanding of what exactly comprises the impact of Design Thinking and how it is created. To support a billion-dollar market, it is essential to understand the value Design Thinking is bringing to organizations not only to justify large investments, but to continuously improve the approach and its application. Following a qualitative research approach combined with results from a systematic literature review, the results presented in this dissertation offer a structured understanding of Design Thinking impact. The results are structured along two main perspectives of impact: the individual and the organizational perspective. First, insights from qualitative data analysis demonstrate that measuring and assessing the impact of Design Thinking is currently one central challenge for Design Thinking practitioners in organizations. Second, the interview data revealed several effects Design Thinking has on individuals, demonstrating how Design Thinking can impact boundary management behaviors and enable employees to craft their jobs more actively. Contributing to innovation management research, the work presented in this dissertation systematically explains the Design Thinking impact, allowing other researchers to both locate and integrate their work better. The results of this research advance the theoretical rigor of Design Thinking impact research, offering multiple theoretical underpinnings explaining the variety of Design Thinking impact. Furthermore, this dissertation contains three specific propositions on how Design Thinking creates an impact: Design Thinking creates an impact through integration, enablement, and engagement. Integration refers to how Design Thinking enables organizations through effectively combining things, such as for example fostering balance between exploitation and exploration activities. Through Engagement, Design Thinking impacts organizations involving users and other relevant stakeholders in their work. Moreover, Design Thinking creates impact through Enablement, making it possible for individuals to enact a specific behavior or experience certain states. By synthesizing multiple theoretical streams into these three overarching themes, the results of this research can help bridge disciplinary boundaries, for example between business, psychology and design, and enhance future collaborative research. Practitioners benefit from the results as multiple desirable outcomes are detailed in this thesis, such as successful individual job crafting behaviors, which can be expected from practicing Design Thinking. This allows practitioners to enact more evidence-based decision-making concerning Design Thinking implementation. Overall, considering multiple levels of impact as well as a broad range of theoretical underpinnings are paramount to understanding and fostering Design Thinking impact.}, language = {en} } @incollection{MarxLi2024, author = {Marx, Reinhard and Li, Yao}, title = {Article 34 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 = {1585 -- 1604}, year = {2024}, abstract = {This chapter tackles the features and historical development of the 1951 Convention's Article 34. It explains the function of the provision, which primarily focuses on requesting Contracting States to facilitate the assimilation and naturalization of refugees. Moreover, the provision forms the legal bases for local integration and naturalization as some of the traditional durable solutions to refugeehood. The soft obligation imposed by Article 34 primarily focuses on the long-term solution by naturalization. The chapter then elaborates on the balance between local integration, naturalization, and voluntary return after it was disrupted due to the fall of the Iron Curtain in 1989.}, language = {en} } @inproceedings{MarxBruenkerMirbabaieetal.2024, author = {Marx, Julian and Br{\"u}nker, Felix and Mirbabaie, Milad and Stieglitz, Stefan}, title = {Digital activism on social media}, 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 = {Department of IT Management Shidler College of Business University of Hawaii}, address = {Honolulu, HI}, isbn = {978-0-99813-317-1}, pages = {7205 -- 7214}, year = {2024}, abstract = {Social media constitute an important arena for public debates and steady interchange of issues relevant to society. To boost their reputation, commercial organizations also engage in political, social, or environmental debates on social media. To engage in this type of digital activism, organizations increasingly utilize the social media profiles of executive employees and other brand ambassadors. However, the relationship between brand ambassadors' digital activism and corporate reputation is only vaguely understood. The results of a qualitative inquiry suggest that digital activism via brand ambassadors can be risky (e.g., creating additional surface for firestorms, financial loss) and rewarding (e.g., emitting authenticity, employing 'megaphones' for industry change) at the same time. The paper informs both scholarship and practitioners about strategic trade-offs that need to be considered when employing brand ambassadors for digital activism.}, language = {en} } @phdthesis{Marx2024, author = {Marx, Carolin Valerie}, title = {Escalation of commitment in information systems projects: a cognitive-affective perspective}, doi = {10.25932/publishup-62696}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-626969}, school = {Universit{\"a}t Potsdam}, pages = {174}, year = {2024}, abstract = {While information systems (IS) projects are pivotal in guiding organizational strategies and sustaining competitive advantages, they frequently overrun budgets, extend beyond timelines, and experience high failure rates. This dissertation delves into the psychological micro-foundations of human behavior - specifically cognition and emotion - in relation to a prevalent issue in IS project management: the tendency to persist with failing courses of action, also called escalation of commitment (EoC). Through a mixed-methods research approach, this study investigates the emotional and cognitive bases of decision-making during IS project escalation and its evolution over time. The results of a psychophysiological laboratory experiment provide evidence for the predictions on the role of negative and complex situational integral emotions of Cognitive Dissonance over Coping Theory and add to a better understanding of how escalation tendencies change during sequential decision-making due to cognitive learning effects. Using psychophysiological measures, including data triangulation between electrodermal and cardiovascular activity and AI-based analysis of facial micro-expressions, this research reveals physiological markers of behavioral escalation tendencies. Complementing the experiment, a qualitative analysis using free-form narration during decision-making simulations shows that decision-makers employ varied cognitive reasoning patterns to justify escalating behaviors, suggesting a sequence of four distinct cognitive phases. By integrating both qualitative and quantitative findings, this dissertation offers a comprehensive theoretical framework of how cognition and emotion shape behavioral EoC over time. I propose that escalation is a cyclical adaptation of mental models, distinguished by shifts in cognitive reasoning patterns, temporal cognition mode variations, and interactions with situational emotions and their anticipation. The primary contribution of this dissertation lies in disentangling the emotional and cognitive mechanisms that drive IS project escalation. The findings provide the basis for developing de-escalation strategies, thereby helping to improve decision-making under uncertainty. Stakeholders involved in IS projects that get "off track" should be aware of the tendency to persist with failing courses of action and the importance of the underlying emotional and cognitive dynamics.}, language = {de} } @phdthesis{MartinezGuajardo2024, author = {Mart{\´i}nez Guajardo, Alejandro}, title = {New zwitterionic polymers for antifouling applications}, doi = {10.25932/publishup-62682}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-626820}, school = {Universit{\"a}t Potsdam}, pages = {XIX, 145}, year = {2024}, abstract = {The remarkable antifouling properties of zwitterionic polymers in controlled environments are often counteracted by their delicate mechanical stability. In order to improve the mechanical stabilities of zwitterionic hydrogels, the effect of increased crosslinker densities was thus explored. In a first approach, terpolymers of zwitterionic monomer 3-[N -2(methacryloyloxy)ethyl-N,N-dimethyl]ammonio propane-1-sulfonate (SPE), hydrophobic monomer butyl methacrylate (BMA), and photo-crosslinker 2-(4-benzoylphenoxy)ethyl methacrylate (BPEMA) were synthesized. Thin hydrogel coatings of the copolymers were then produced and photo-crosslinked. Studies of the swollen hydrogel films showed that not only the mechanical stability but also, unexpectedly, the antifouling properties were improved by the presence of hydrophobic BMA units in the terpolymers. Based on the positive results shown by the amphiphilic terpolymers and in order to further test the impact that hydrophobicity has on both the antifouling properties of zwitterionic hydrogels and on their mechanical stability, a new amphiphilic zwitterionic methacrylic monomer, 3-((2-(methacryloyloxy)hexyl)dimethylammonio)propane-1-sulfonate (M1), was synthesized in good yields in a multistep synthesis. Homopolymers of M1 were obtained by free-radical polymerization. Similarly, terpolymers of M1, zwitterionic monomer SPE, and photo-crosslinker BPEMA were synthesized by free-radical copolymerization and thoroughly characterized, including its solubilities in selected solvents. Also, a new family of vinyl amide zwitterionic monomomers, namely 3-(dimethyl(2-(N -vinylacetamido)ethyl)ammonio)propane-1-sulfonate (M2), 4-(dimethyl(2-(N-vinylacetamido)ethyl)ammonio)butane-1-sulfonate (M3), and 3-(dimethyl(2-(N-vinylacetamido)ethyl)ammonio)propyl sulfate (M4), together with the new photo-crosslinker 4-benzoyl-N-vinylbenzamide (M5) that is well-suited for copolymerization with vinylamides, are introduced within the scope of the present work. The monomers are synthesized with good yields developing a multistep synthesis. Homopolymers of the new vinyl amide zwitterionic monomers are obtained by free-radical polymerization and thoroughly characterized. From the solubility tests, it is remarkable that the homopolymers produced are fully soluble in water, evidence of their high hydrophilicity. Copolymerization of the vinyl amide zwitterionic monomers, M2, M3, and M4 with the vinyl amide photo-crosslinker M5 proved to require very specific polymerization conditions. Nevertheless, copolymers were successfully obtained by free-radical copolymerization under appropriate conditions. Moreover, in an attempt to mitigate the intrinsic hydrophobicity introduced in the copolymers by the photo-crosslinkers, and based on the proven affinity of quaternized diallylamines to copolymerize with vinyl amides, a new quaternized diallylamine sulfobetaine photo-crosslinker 3-(diallyl(2-(4-benzoylphenoxy)ethyl)ammonio)propane-1-sulfonate (M6) is synthesized. However, despite a priori promising copolymerization suitability, copolymerization with the vinyl amide zwitterionic monomers could not be achieved.}, language = {en} } @phdthesis{Martin2024, author = {Martin, Katja}, title = {Beerdigen oder verbrennen?}, publisher = {arijeh-verlag}, address = {Potsdam}, isbn = {978-3-944693-04-0}, school = {Universit{\"a}t Potsdam}, pages = {398}, year = {2024}, language = {de} } @phdthesis{Martin2024, author = {Martin, Johannes}, title = {Synthesis of protein-polymer conjugates and block copolymers via sortase-mediated ligation}, doi = {10.25932/publishup-64566}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645669}, school = {Universit{\"a}t Potsdam}, pages = {XVII, 150}, year = {2024}, abstract = {In den vergangenen Jahrzehnten haben therapeutische Proteine in der pharmazeutischen Industrie mehr und mehr an Bedeutung gewonnen. Werden Proteine nichtmenschlichen Ursprungs verwendet, kann es jedoch zu einer Immunreaktion kommen, sodass das Protein sehr schnell aus dem K{\"o}rper ausgeschieden oder abgebaut wird. Um die Zirkulationszeit im Blut signifikant zu verl{\"a}ngern, werden die Proteine mit synthetischen Polymeren modifiziert (Protein-Polymer-Konjugate). Die Proteine aller heute auf dem Markt erh{\"a}ltlichen Medikamente dieser Art tragen eine oder mehrere Polymerketten aus Poly(ethylenglycol) (PEG). Ein Nachteil der PEGylierung ist, dass viele Patienten bei regelm{\"a}ßiger Einnahme dieser Medikamente Antik{\"o}rper gegen PEG entwickeln, die den effizienzsteigernden Effekt der PEGylierung wieder aufheben. Ein weiterer Nachteil der PEGylierung ist die oftmals deutlich verringerte Aktivit{\"a}t der Konjugate im Vergleich zum nativen Protein. Der Grund daf{\"u}r ist die Herstellungsmethode der Konjugate, bei der meist die prim{\"a}ren Amine der Lysin-Seitenketten und der N-Terminus des Proteins genutzt werden. Da die meisten Proteine mehrere gut zug{\"a}ngliche Lysine aufweisen, werden oft unterschiedliche und teilweise mehrere Lysine mit PEG funktionalisiert, was zu einer Mischung an Regioisomeren f{\"u}hrt. Je nach Position der PEG-Kette kann das aktive Zentrum abgeschirmt oder die 3D-Struktur des Proteins ver{\"a}ndert werden, was zu einem teilweise drastischen Aktivit{\"a}tsabfall f{\"u}hrt. In dieser Arbeit wurde eine neuartige Methode zur Ligation von Makromolek{\"u}len untersucht. Die Verwendung eines Enzyms als Katalysator zur Verbindung zweier Makromolek{\"u}le ist bisher wenig untersucht und ineffizient. Als Enzym wurde Sortase A ausgew{\"a}hlt, eine gut untersuchte Ligase aus der Familie der Transpeptidasen, welche die Ligation zweier Peptide katalysieren kann. Ein Nachteil dieser Sortase-vermittelten Ligation ist, dass es sich um eine Gleichgewichtsreaktion handelt, wodurch hohe Ausbeuten schwierig zu erreichen sind. Im Rahmen dieser Dissertation wurden zwei zuvor entwickelte Methoden zur Verschiebung des Gleichgewichts ohne Einsatz eines großen {\"U}berschusses von einem Edukt f{\"u}r Makromolek{\"u}le {\"u}berpr{\"u}ft. Zur Durchf{\"u}hrung der Sortase-vermittelten Ligation werden zwei komplement{\"a}re Peptidsequenzen verwendet, die Erkennungssequenz und das Nukleophil. Um eine systematische Untersuchung durchf{\"u}hren zu k{\"o}nnen, wurden alle n{\"o}tigen Bausteine (Protein-Erkennungssequenz zur Reaktion mit Nukleophil-Polymer und Polymer-Erkennungssequenz mit Nukleophil-Protein) hergestellt. Als Polymerisationstechnik wurde die radikalische Polymerisation mit reversibler Deaktivierung (im Detail, Atom Transfer Radical Polymerization, ATRP und Reversible Addition-Fragmentation Chain Transfer, RAFT polymerization) gew{\"a}hlt, um eine enge Molmassenverteilung zu erreichen. Die Herstellung der Bausteine begann mit der Synthese der Peptide via automatisierter Festphasen-Peptidsynthese, um eine einfache {\"A}nderung der Peptidsequenz zu gew{\"a}hrleisten und um eine Modifizierung der Polymerkette nach der Polymerisation zu umgehen. Um die ben{\"o}tigte unterschiedliche Funktionalit{\"a}t der zwei Peptidsequenzen (freier C-Terminus bei der Erkennungssequenz bzw. freier N-Terminus bei dem Nukleophil) zu erreichen, wurden verschiedene Linker zwischen Harz und Peptid verwendet. Danach wurde der Ketten{\"u}bertr{\"a}ger (chain transfer agent, CTA) zur Kontrolle der Polymerisation mit dem auf dem Harz befindlichen Peptid gekoppelt. Die f{\"u}r die anschließende Polymerisation verwendeten Monomere basierten auf Acrylamiden und Acrylaten und wurden anhand ihrer Eignung als Alternativen zu PEG ausgew{\"a}hlt. Es wurde eine k{\"u}rzlich entwickelte Technik basierend auf der RAFT-Polymerisation (xanthate-supported photo-iniferter RAFT, XPI-RAFT) verwendet um eine Reihe an Peptid-Polymeren mit unterschiedlichen Molekulargewichten und engen Molekulargewichtsverteilungen herzustellen. Nach Entfernung der Schutzgruppen der Peptid-Seitenketten wurden die Peptid-Polymere zun{\"a}chst genutzt, um mittels Sortase-vermittelter Ligation zwei Polymerketten zu einem Blockcopolymer zu verbinden. Unter Verwendung von Ni2+-Ionen in Kombination mit einer Verl{\"a}ngerung der Erkennungssequenz um ein Histidin zur Unterdr{\"u}ckung der R{\"u}ckreaktion konnte ein maximaler Umsatz von 70 \% erreicht werden. Dabei zeigte sich ein oberes Limit von durchschnittlich 100 Wiederholungseinheiten; die Ligation von l{\"a}ngeren Polymeren war nicht erfolgreich. Danach wurden ein Modellprotein und ein Nanobody mit vielversprechenden medizinischen Eigenschaften mit den f{\"u}r die enzymkatalysierte Ligation ben{\"o}tigten Peptidsequenzen f{\"u}r die Kopplung mit den zuvor hergestellten Peptid-Polymeren verwendet. Dabei konnte bei Verwendung des Modellproteins keine Bildung von Protein-Polymer-Konjugaten beobachtet werden. Der Nanobody konnte dagegen C-terminal mit einem Polymer funktionalisiert werden. Dabei wurde eine {\"a}hnliche Limitierung in der Polymer-Kettenl{\"a}nge beobachtet wie zuvor. Die auf Ni-Ionen basierte Strategie zur Gleichgewichtsverschiebung hatte hier keinen ausschlaggebenden Effekt, w{\"a}hrend die Verwendung von einem {\"U}berschuss an Polymer zur vollst{\"a}ndigen Umsetzung des Edukt-Nanobody f{\"u}hrte. Die erhaltenen Daten aus diesem Projekt bilden eine gute Basis f{\"u}r weitere Forschung in dem vielversprechenden Feld der enzymkatalysierten Herstellung von Protein-Polymer-Konjugaten und Blockcopolymeren. Langfristig k{\"o}nnte diese Herangehensweise eine vielseitig einsetzbare Herstellungsmethode von ortsspezifischen therapeutischen Protein-Polymer Konjugaten darstellen, welche sowohl eine hohe Aktivit{\"a}t als auch eine lange Zirkulationszeit im Blut aufweisen.}, language = {en} } @article{MarienfeldtWehmeierKuhlmann2024, author = {Marienfeldt, Justine and Wehmeier, Liz Marla and Kuhlmann, Sabine}, title = {Top-down or bottom-up digital transformation?}, series = {Public money \& management}, journal = {Public money \& management}, publisher = {Taylor \& Francis}, address = {Abingdon}, issn = {0954-0962}, doi = {10.1080/09540962.2024.2365351}, pages = {10}, year = {2024}, abstract = {This article analyses incremental institutional change and subsequent organizational and performance outcomes of the digital transformation from a comparative perspective. Through 31 expert interviews, the authors compare two digitalized public services in Germany. Two digitalization approaches are identified. The voluntary, decentralized bottom-up approach involves layering of new rules, limited organizational restructuring, and performance deficits. Conversely, the compulsory, top-down approach with centralized control facilitates displacement of existing rules and far-reaching organizational change; in this study, it is also associated with improved performance.}, language = {en} } @article{MarienfeldtKuehlerKuhlmannetal.2024, author = {Marienfeldt, Justine and K{\"u}hler, Jakob and Kuhlmann, Sabine and Proeller, Isabella}, title = {Kommunale Verwaltungsdigitalisierung im f{\"o}deralen Kontext}, series = {der moderne staat - Zeitschrift f{\"u}r Public Policy, Recht und Management}, volume = {17}, journal = {der moderne staat - Zeitschrift f{\"u}r Public Policy, Recht und Management}, number = {1}, publisher = {Verlag Barbara Budrich}, address = {Leverkusen-Opladen}, issn = {1865-7192}, doi = {10.3224/dms.v17i1.03}, pages = {35 -- 59}, year = {2024}, abstract = {Dieser Beitrag vergleicht die kommunale Verwaltungsdigitalisierung in Deutschland, {\"O}sterreich und der Schweiz (DACH-L{\"a}nder) als Vertreter der kontinentaleurop{\"a}isch-f{\"o}deralen Verwaltungstradition bei zugleich unterschiedlichen Digitalisierungsans{\"a}tzen und -fortschritten. Basierend auf Interviews mit 22 Expert*innen und Beobachtungen in je einer Kommune pro Land sowie Dokumenten-, Literatur- und Sekund{\"a}rdatenanalysen untersucht die Studie, wie Verwaltungsdigitalisierung im Mehrebenensystem organisiert ist und welche Rolle dabei das Verwaltungsprofil spielt sowie welche Innovationsschwerpunkte die Kommunen im Hinblick auf die Leistungserbringung und die internen Prozesse setzen. Die Ergebnisse zeigen, dass der hohe Grad lokaler Autonomie den Kommunen erm{\"o}glicht, eigene Akzente in der Verwaltungsdigitalisierung zu setzen. Zugleich wirken die stark verflochtenen komplexen Entscheidungsstrukturen und hohen Koordinationsbedarfe in verwaltungsf{\"o}deralen Systemen, die in Deutschland am st{\"a}rksten, in {\"O}sterreich etwas schw{\"a}cher und in der Schweiz am geringsten ausgepr{\"a}gt sind, als Digitalisierungshemmnisse. Ferner weisen die Befunde auf eine unitarisierende Wirkung der Verwaltungsdigitalisierung als Reformbereich hin. Insgesamt tr{\"a}gt die Studie zu einem besseren Verst{\"a}ndnis daf{\"u}r bei, welche Problematik die Verwaltungsdigitalisierung f{\"u}r f{\"o}deral-dezentrale Verwaltungsmodelle mit sich bringt.}, language = {de} } @incollection{Marienfeldt2024, author = {Marienfeldt, Justine}, title = {Digitalisierung und Automatisierung in der Sachbearbeitung}, series = {Handbuch Digitalisierung in Staat und Verwaltung}, booktitle = {Handbuch Digitalisierung in Staat und Verwaltung}, editor = {Klenk, Tanja and Nullmeier, Frank and Wewer, G{\"o}ttrik}, publisher = {Springer VS}, address = {Wiesbaden}, isbn = {978-3-658-23669-4}, doi = {10.1007/978-3-658-23669-4_89-1}, pages = {1 -- 12}, year = {2024}, abstract = {Die Nutzung von Informations- und Kommunikationstechnik (IKT), Fachverfahren und die Automatisierung von Prozessen ver{\"a}ndern die Sachbearbeitung und Leistungserstellung in der Verwaltung und somit die T{\"a}tigkeiten, Arbeitsbedingungen und Personalstrukturen. Bei der Antragsbearbeitung und Bescheiderstellung in der Ordnungs- und Leistungsverwaltung erh{\"a}lt IKT nicht nur eine unterst{\"u}tzende, sondern zunehmend auch eine leitende oder entscheidende Rolle. Abh{\"a}ngig von der konkreten Ausgestaltung kann die fortschreitende Digitalisierung eine ganzheitliche Sachbearbeitung erm{\"o}glichen, aber auch einschr{\"a}nken. Insgesamt kann sie zu einer Neuordnung des Berufsfeldes {\"o}ffentlicher Dienst f{\"u}hren.}, language = {de} } @article{Marienfeldt2024, author = {Marienfeldt, Justine}, title = {Does digital government hollow out the essence of street-level bureaucracy?}, series = {Social policy \& administration}, journal = {Social policy \& administration}, publisher = {Wiley-Blackwell}, address = {Oxford}, issn = {0144-5596}, doi = {10.1111/spol.12991}, pages = {1 -- 25}, year = {2024}, abstract = {The growing use of digital tools in policy implementation has altered the work of street-level bureaucrats who are granted substantial discretionary power in decision-making. Digital tools can constrain discretionary power, like the curtailment thesis proposed, or serve as action resources, like the enablement thesis suggested. This article assesses empirical evidence of the impact of digital tools on street-level work and decision-making in service-oriented and regulation-oriented organisations based on a systematic literature review and thematic qualitative content analysis of 36 empirical studies published until 2021. The findings demonstrate different effects with regard to the role of digital tools and the core tasks of the public administration, depending on political and managerial goals and consequent system design. Leading or decisive digital tools mostly curtail discretion, especially in service-oriented organisations. In contrast, an enhanced information base or recommendations for actions enable decision-making, in particular in regulation-oriented organisations. By showing how street-level bureaucrats actively try to resist the curtailing effects caused by rigid design to address individual circumstances, for instance by establishing ways of coping like rule bending or rule breaking, using personal resources or prioritising among clients, this study demonstrates the importance of the continuation thesis and the persistently crucial role of human judgement in policy implementation.}, language = {en} } @phdthesis{MahnckeZare2024, author = {Mahncke-Zare, Naghme}, title = {Legitimiertes Unrecht}, doi = {10.25932/publishup-63549}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-635499}, school = {Universit{\"a}t Potsdam}, pages = {316}, year = {2024}, abstract = {Das Oberste Gericht der DDR war integraler Bestandteil der sozialistischen Staatsf{\"u}hrung und unterlag strengen Denk- und Organisationsstrukturen. Es war eng in die politische Agenda der SED eingebunden und genoss keinerlei Unabh{\"a}ngigkeit. Die Auslegung des DDR-Rechts durch das Gericht orientierte sich ausschließlich an den innen- und außenpolitischen Interessen der SED. Dies galt auch f{\"u}r die Rechtsprechung in F{\"a}llen der Republikflucht und ihrer gesetzlichen Vorl{\"a}ufer. Die h{\"o}chste Gerichtsinstanz im Staat war aktiv an der Gestaltung und Umsetzung der Strafjustiz gegen Republikfl{\"u}chtige beteiligt, was wesentlich zur Festigung der Herrschaftsgewalt der SED beitrug. Die vorliegende Untersuchung analysiert Urteile des Obersten Gerichts im historisch-politischen Kontext und zeigt auf, dass die Urteilspraxis ausschließlich im Interesse parteipolitischer Ziele handelte und weder dem Volk noch der eigentlichen Rechtsfindung verpflichtet war. Des Weiteren wird der maßgebliche Beitrag des Obersten Gerichts an der schrittweisen Kriminalisierung der B{\"u}rger der DDR beleuchtet. Dies wirft ein kritisches Licht auf die Rolle des Rechtssystems bei der Sicherung von Rechtsstaatlichkeit und Menschenrechten in autorit{\"a}ren Regimen.}, language = {de} } @incollection{MackertPappe2024, author = {Mackert, J{\"u}rgen and Pappe, Ilan}, title = {Das Paradigma des Siedlerkolonialismus}, series = {Siedlerkolonialismus : Grundlagentexte des Paradigmas und aktuelle Analysen}, booktitle = {Siedlerkolonialismus : Grundlagentexte des Paradigmas und aktuelle Analysen}, editor = {Mackert, J{\"u}rgen and Pappe, Ilan}, edition = {1. Auflage}, publisher = {Nomos}, address = {Baden-Baden}, isbn = {978-3-8487-9011-1}, doi = {10.5771/9783748934745-11}, pages = {11 -- 54}, year = {2024}, language = {de} } @article{Mackert2024, author = {Mackert, J{\"u}rgen}, title = {Citizenship}, series = {Politische Soziologie: Handbuch f{\"u}r Wissenschaft und Studium}, journal = {Politische Soziologie: Handbuch f{\"u}r Wissenschaft und Studium}, editor = {Endreß, Martin and Rampp, Benjamin}, publisher = {Nomos}, address = {Baden-Baden}, isbn = {978-3-8487-4836-5}, year = {2024}, language = {de} } @phdthesis{Lorson2024, author = {Lorson, Annalena}, title = {Understanding early stage evolution of digital innovation units in manufacturing companies}, doi = {10.25932/publishup-63914}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-639141}, school = {Universit{\"a}t Potsdam}, pages = {XI, 149}, year = {2024}, abstract = {The dynamic landscape of digital transformation entails an impact on industrial-age manufacturing companies that goes beyond product offerings, changing operational paradigms, and requiring an organization-wide metamorphosis. An initiative to address the given challenges is the creation of Digital Innovation Units (DIUs) - departments or distinct legal entities that use new structures and practices to develop digital products, services, and business models and support or drive incumbents' digital transformation. With more than 300 units in German-speaking countries alone and an increasing number of scientific publications, DIUs have become a widespread phenomenon in both research and practice. This dissertation examines the evolution process of DIUs in the manufacturing industry during their first three years of operation, through an extensive longitudinal single-case study and several cross-case syntheses of seven DIUs. Building on the lenses of organizational change and development, time, and socio-technical systems, this research provides insights into the fundamentals, temporal dynamics, socio-technical interactions, and relational dynamics of a DIU's evolution process. Thus, the dissertation promotes a dynamic understanding of DIUs and adds a two-dimensional perspective to the often one-dimensional view of these units and their interactions with the main organization throughout the startup and growth phases of a DIU. Furthermore, the dissertation constructs a phase model that depicts the early stages of DIU evolution based on these findings and by incorporating literature from information systems research. As a result, it illustrates the progressive intensification of collaboration between the DIU and the main organization. After being implemented, the DIU sparks initial collaboration and instigates change within (parts of) the main organization. Over time, it adapts to the corporate environment to some extent, responding to changing circumstances in order to contribute to long-term transformation. Temporally, the DIU drives the early phases of cooperation and adaptation in particular, while the main organization triggers the first major evolutionary step and realignment of the DIU. Overall, the thesis identifies DIUs as malleable organizational structures that are crucial for digital transformation. Moreover, it provides guidance for practitioners on the process of building a new DIU from scratch or optimizing an existing one.}, language = {en} } @phdthesis{Littmann2024, author = {Littmann, Daniela-Christin}, title = {Large eddy simulations of the Arctic boundary layer around the MOSAiC drift track}, doi = {10.25932/publishup-62437}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-624374}, school = {Universit{\"a}t Potsdam}, pages = {xii, 110}, year = {2024}, abstract = {The icosahedral non-hydrostatic large eddy model (ICON-LEM) was applied around the drift track of the Multidisciplinary Observatory Study of the Arctic (MOSAiC) in 2019 and 2020. The model was set up with horizontal grid-scales between 100m and 800m on areas with radii of 17.5km and 140 km. At its lateral boundaries, the model was driven by analysis data from the German Weather Service (DWD), downscaled by ICON in limited area mode (ICON-LAM) with horizontal grid-scale of 3 km. The aim of this thesis was the investigation of the atmospheric boundary layer near the surface in the central Arctic during polar winter with a high-resolution mesoscale model. The default settings in ICON-LEM prevent the model from representing the exchange processes in the Arctic boundary layer in accordance to the MOSAiC observations. The implemented sea-ice scheme in ICON does not include a snow layer on sea-ice, which causes a too slow response of the sea-ice surface temperature to atmospheric changes. To allow the sea-ice surface to respond faster to changes in the atmosphere, the implemented sea-ice parameterization in ICON was extended with an adapted heat capacity term. The adapted sea-ice parameterization resulted in better agreement with the MOSAiC observations. However, the sea-ice surface temperature in the model is generally lower than observed due to biases in the downwelling long-wave radiation and the lack of complex surface structures, like leads. The large eddy resolving turbulence closure yielded a better representation of the lower boundary layer under strongly stable stratification than the non-eddy-resolving turbulence closure. Furthermore, the integration of leads into the sea-ice surface reduced the overestimation of the sensible heat flux for different weather conditions. The results of this work help to better understand boundary layer processes in the central Arctic during the polar night. High-resolving mesoscale simulations are able to represent temporally and spatially small interactions and help to further develop parameterizations also for the application in regional and global models.}, language = {en} } @book{LinderkampHennigSchramm2024, author = {Linderkamp, Friedrich and Hennig, Timo and Schramm, Satyam Antonio}, title = {ADHS bei Jugendlichen}, edition = {2., aktualisierte und erweiterte}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, doi = {10.25932/publishup-60872}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-608723}, publisher = {Universit{\"a}t Potsdam}, pages = {217}, year = {2024}, abstract = {ADHS galt lange als eine St{\"o}rung des Kindesalters. Aber bis zu 80 \% der Patient:innen sind auch noch als Jugendliche betroffen. Gerade sie brauchen Hilfe bei ihren Problemen! In der Schule m{\"u}ssen sie {\"o}fter die Klasse wiederholen, im sozialen und emotionalen Bereich gibt es Konflikte mit Gleichaltrigen und Eltern. Unbehandelt drohen psychische St{\"o}rungen, Drogenmissbrauch oder delinquentes Verhalten. Das vorliegende Lerntraining ist das erste multimodale Behandlungskonzept f{\"u}r Jugendliche im Alter von 12 bis 17 Jahren. Es werden konkrete Probleme und Aufgaben aus Schule und Umwelt behandelt, um daran allgemeine Strategien herzuleiten. Eltern und Lehrer werden intensiv in die Behandlung mit einbezogen.}, language = {de} } @phdthesis{Limberger2024, author = {Limberger, Daniel}, title = {Concepts and techniques for 3D-embedded treemaps and their application to software visualization}, doi = {10.25932/publishup-63201}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-632014}, school = {Universit{\"a}t Potsdam}, pages = {xi, 118}, year = {2024}, abstract = {This thesis addresses concepts and techniques for interactive visualization of hierarchical data using treemaps. It explores (1) how treemaps can be embedded in 3D space to improve their information content and expressiveness, (2) how the readability of treemaps can be improved using level-of-detail and degree-of-interest techniques, and (3) how to design and implement a software framework for the real-time web-based rendering of treemaps embedded in 3D. With a particular emphasis on their application, use cases from software analytics are taken to test and evaluate the presented concepts and techniques. Concerning the first challenge, this thesis shows that a 3D attribute space offers enhanced possibilities for the visual mapping of data compared to classical 2D treemaps. In particular, embedding in 3D allows for improved implementation of visual variables (e.g., by sketchiness and color weaving), provision of new visual variables (e.g., by physically based materials and in situ templates), and integration of visual metaphors (e.g., by reference surfaces and renderings of natural phenomena) into the three-dimensional representation of treemaps. For the second challenge—the readability of an information visualization—the work shows that the generally higher visual clutter and increased cognitive load typically associated with three-dimensional information representations can be kept low in treemap-based representations of both small and large hierarchical datasets. By introducing an adaptive level-of-detail technique, we cannot only declutter the visualization results, thereby reducing cognitive load and mitigating occlusion problems, but also summarize and highlight relevant data. Furthermore, this approach facilitates automatic labeling, supports the emphasis on data outliers, and allows visual variables to be adjusted via degree-of-interest measures. The third challenge is addressed by developing a real-time rendering framework with WebGL and accumulative multi-frame rendering. The framework removes hardware constraints and graphics API requirements, reduces interaction response times, and simplifies high-quality rendering. At the same time, the implementation effort for a web-based deployment of treemaps is kept reasonable. The presented visualization concepts and techniques are applied and evaluated for use cases in software analysis. In this domain, data about software systems, especially about the state and evolution of the source code, does not have a descriptive appearance or natural geometric mapping, making information visualization a key technology here. In particular, software source code can be visualized with treemap-based approaches because of its inherently hierarchical structure. With treemaps embedded in 3D, we can create interactive software maps that visually map, software metrics, software developer activities, or information about the evolution of software systems alongside their hierarchical module structure. Discussions on remaining challenges and opportunities for future research for 3D-embedded treemaps and their applications conclude the thesis.}, language = {en} } @article{LimSamperMejia2024, author = {Lim, Misun and Samper Mejia, Cristina}, title = {Race and cohort differences in family status in the United States}, series = {Socius : sociological research for a dynamic world}, volume = {10}, journal = {Socius : sociological research for a dynamic world}, publisher = {Sage Publications}, address = {London}, issn = {2378-0231}, doi = {10.1177/23780231241241041}, pages = {1 -- 4}, year = {2024}, abstract = {In this visualization, the authors show changes in family patterns by different race groups across two cohorts. Using data from the National Longitudinal Survey of Youth 1979 (born from 1957 to 1965) and 1997 (born from 1980 to 1984), the authors visualize the relationship-parenthood state distributions at each age between 15 and 35 years by race and cohort. The results suggest the rise of cohabiting mothers and the decline of married and divorced mothers among women born from 1980 to 1984. Black women born from 1980 to 1984 were more likely to experience single/childless and single/parent status compared with Black women born from 1957 to 1965. Although with some visible postponement in the recent cohort, white women in both cohorts were more likely to experience married/parent status than other race groups. The decline in married/parent status across the two generations was sharpest among Hispanic women. These descriptive findings highlight the importance of identifying race when discussing changes in family formation and dissolution trends across generations.}, language = {en} }