@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} } @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} } @article{FrommStieglitzMirbabaie2024, author = {Fromm, Jennifer and Stieglitz, Stefan and Mirbabaie, Milad}, title = {Virtual reality in digital education}, series = {ACM SIGMIS database}, volume = {55}, journal = {ACM SIGMIS database}, number = {2}, publisher = {ACM}, address = {New York, NY}, issn = {0095-0033}, doi = {10.1145/3663682.3663685}, pages = {14 -- 41}, year = {2024}, abstract = {Virtual reality promises high potential as an immersive, hands-on learning tool for training 21st-century skills. However, previous research revealed that the mere use of digital tools in higher education does not automatically translate into learning outcomes. Instead, information systems studies emphasized the importance of effective use behavior to achieve technology usage goals. Applying the affordance network approach, we investigated what constitutes effective usage behavior regarding a virtual reality collaboration system in digital education. Therefore, we conducted 18 interviews with students and observations of six course sessions. The results uncover how affordance actualization contributed to the achievement of learning goals. A comparison with findings of previous studies on other information systems (i.e., electronic medical record systems, big data analytics, fitness wearables) allowed us to highlight system-specific differences in effective use behavior. We also demonstrated a clear distinction between concepts surrounding effective use theory facilitating the application of the affordance network approach in information systems research.}, language = {en} } @phdthesis{Eckert2024, author = {Eckert, Konstantin Franz}, title = {Vorleben, vorsterben, vorglaube?}, series = {Krieg und Konflikt}, volume = {22}, journal = {Krieg und Konflikt}, publisher = {Campus}, address = {Frankfurt am Main}, isbn = {978-3-593-51865-7}, pages = {577}, year = {2024}, abstract = {Wie wurden die Soldaten der Wehrmacht - in der Kaserne und an der Front - von ihren Unteroffizieren und Offizieren behandelt? Wie war deren Menschenf{\"u}hrung beeinflusst vom Nationalsozialismus und welche Bedeutung hatte sie f{\"u}r den Zusammenhalt des deutschen Heeres im Zweiten Weltkrieg? Konstantin Franz Eckert schließt, gest{\"u}tzt auf eine breite Quellenbasis, eine wichtige Forschungsl{\"u}cke. Seine Studie zeigt, wie junge M{\"a}nner auf ihren Milit{\"a}rdienst vorbereitet wurden und was sie von ihren Vorgesetzten erwarteten. Sie weist nach, dass Vorbild und pers{\"o}nlicher Einsatz, Konstruktivit{\"a}t und absolute Unterordnung unter das Gehorsamsprinzip im Dienst des NS-Regimes zentrale F{\"u}hrungselemente der Wehrmacht waren. Zudem wirft sie einen Blick auf die milit{\"a}rische Ausbildung und ordnet die alten Narrative vom »Kasernenhofschleifer« sachlich ein.}, language = {de} } @phdthesis{Blaser2024, author = {Blaser, Berenike Lisa}, title = {Premenstrual symptoms as a function of altered central autonomous nervous activity}, doi = {10.25932/publishup-64597}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-645970}, school = {Universit{\"a}t Potsdam}, pages = {XII, 265}, year = {2024}, abstract = {The experience of premenstrual syndrome (PMS) affects up to 90\% of individuals with an active menstrual cycle and involves a spectrum of aversive physiological and psychological symptoms in the days leading up to menstruation (Tschudin et al., 2010). Despite its high prevalence, the precise origins of PMS remain elusive, with influences ranging from hormonal fluctuations to cognitive, social, and cultural factors (Hunter, 2007; Matsumoto et al., 2013). Biologically, hormonal fluctuations, particularly in gonadal steroids, are commonly believed to be implicated in PMS, with the central factor being varying susceptibilities to the fluctuations between individuals and cycles (Rapkin \& Akopians, 2012). Allopregnanolone (ALLO), a neuroactive steroid and progesterone metabolite, has emerged as a potential link to PMS symptoms (Hantsoo \& Epperson, 2020). ALLO is a positive allosteric modulator of the GABAA receptor, influencing inhibitory communication (Rupprecht, 2003; Andr{\´e}en et al., 2006). Different susceptibility to ALLO fluctuations throughout the cycle may lead to reduced GABAergic signal transmission during the luteal phase of the menstrual cycle. The GABAergic system's broad influence leads to a number of affected physiological systems, including a consistent reduction in vagally mediated heart rate variability (vmHRV) during the luteal phase (Schmalenberger et al., 2019). This reduction in vmHRV is more pronounced in individuals with high PMS symptoms (Baker et al., 2008; Matsumoto et al., 2007). Fear conditioning studies have shown inconsistent associations with cycle phases, suggesting a complex interplay between physiological parameters and PMS-related symptoms (Carpenter et al., 2022; Epperson et al., 2007; Milad et al., 2006). The neurovisceral integration model posits that vmHRV reflects the capacity of the central autonomous network (CAN), which is responsible for regulatory processes on behavioral, cognitive, and autonomous levels (Thayer \& Lane, 2000, 2009). Fear learning, mediated within the CAN, is suggested to be indicative of vmHRV's capacity for successful VI regulation (Battaglia \& Thayer, 2022). Given the GABAergic mediation of central inhibitory functional connectivity in the CAN, which may be affected by ALLO fluctuations, this thesis proposes that fluctuating CAN activity in the luteal phase contributes to diverse aversive symptoms in PMS. A research program was designed to empirically test these propositions. Study 1 investigated fear discrimination during different menstrual cycle phases and its interaction with vmHRV, revealing nuanced effects on acoustic startle response and skin conductance response. While there was heightened fear discrimination in acoustic startle responses in participants in the luteal phase, there was an interaction between menstrual cycle phase and vmHRV in skin conductance responses. In this measure, heightened fear discrimination during the luteal phase was only visible in individuals with high resting vmHRV; those with low vmHRV showed reduced fear discrimination and higher overall responses. Despite affecting the vast majority of menstruating people, there are very limited tools available to reliably assess these symptoms in the German speaking area. Study 2 aimed at closing this gap, by translating and validating a German version of the short version of the Premenstrual Assessment Form (Allen et al., 1991), providing a reliable tool for future investigations, which closes the gap in PMS questionnaires in the German-speaking research area. Study 3 employed a diary study paradigm to explore daily associations between vmHRV and PMS symptoms. The results showed clear simultaneous fluctuations between the two constructs with a peak in PMS and a low point in vmHRV a few days before menstruation onset. The association between vmHRV and PMS was driven by psychological PMS symptoms. Based on the theoretical considerations regarding the neurovisceral perspective on PMS, another interesting construct to consider is attentional control, as it is closely related to functions of the CAN. Study 4 delved into attentional control and vmHRV differences between menstrual cycle phases, demonstrating an interaction between cycle phase and PMS symptoms. In a pilot, we found reduced vmHRV and attentional control during the luteal phase only in participants who reported strong PMS. While Studies 1-4 provided evidence for the mechanisms underlying PMS, Studies 5 and 6 investigated short- and long-term intervention protocols to ameliorate PMS symptomatology. Study 5 explored the potential of heart rate variability biofeedback (HRVB) in alleviating PMS symptoms and a number of other outcome measures. In a waitlist-control design, participants underwent a 4-week smartphone-based HRVB intervention. The results revealed positive effects on PMS, with larger effect sizes on psychological symptoms, as well as on depressive symptoms, anxiety/stress and attentional control. Finally, Study 6 examined the acute effects of HRVB on attentional control. The study found positive impact but only in highly stressed individuals. The thesis, based on this comprehensive research program, expands our understanding of PMS as an outcome of CAN fluctuations mediated by GABAA receptor reactivity. The results largely support the model. These findings not only deepen our understanding of PMS but also offer potential avenues for therapeutic interventions. The promising results of smartphone-based HRVB training suggest a non-pharmacological approach to managing PMS symptoms, although further research is needed to confirm its efficacy. In conclusion, this thesis illuminates the complex web of factors contributing to PMS, providing valuable insights into its etiological underpinnings and potential interventions. By elucidating the relationships between hormonal fluctuations, CAN activity, and psychological responses, this research contributes to more effective treatments for individuals grappling with the challenges of PMS. The findings hold promise for improving the quality of life for those affected by this prevalent and often debilitating condition.}, language = {en} } @techreport{StieglitzZerfassWlokaetal.2024, author = {Stieglitz, Stefan and Zerfaß, Ansgar and Wloka, Michelle and Clausen, S{\"u}nje}, title = {Communications trend radar 2024}, series = {Communication insights}, volume = {20}, journal = {Communication insights}, publisher = {Academic Society for Management \& Communication}, address = {Leipzig}, issn = {2749-893X}, doi = {10419/284410}, pages = {43}, year = {2024}, abstract = {What does the future hold for corporate communications? The Communications Trend Radar is an applied research project. On an annual basis, it identifies relevant trends for corporate communications from the fields of society, management, and technology. The research team at the University of Potsdam (Professor Stefan Stieglitz, S{\"u}nje Clausen, MS.) and Leipzig University (Professor Ansgar Zerfass, Dr Michelle Wloka) identified the following trends for 2024: Information Inflation, AI Literacy, Workforce Shift, Content Integrity, Decoding Humans. More information on the trends can be found in the Communications Trend Radar Report 2024}, language = {en} } @article{FuhrhopLeubner2024, author = {Fuhrhop, Nanna and Leubner, Martin}, title = {Kafkas Sprache unter der Lupe}, series = {Praxis Deutsch : Kafka}, volume = {51}, journal = {Praxis Deutsch : Kafka}, number = {305}, publisher = {Friedrich}, address = {Hannover}, pages = {55 -- 59}, year = {2024}, abstract = {Die Unterrichtsanregungen zeigen exemplarisch den Nutzen von sprachlichen Zug{\"a}ngen im Literaturunterricht. Die Lernenden erschließen den Text Vor dem Gesetz unter Ber{\"u}cksichtigung des Machtgef{\"a}lles zwischen den Figuren und beachten insbesondere sprachliche Mittel.}, language = {de} } @article{StieglitzMirbabaieDeubeletal.2024, author = {Stieglitz, Stefan and Mirbabaie, Milad and Deubel, Annika and Braun, Lea-Marie and Kissmer, Tobias}, title = {Corrigendum to "The potential of digital nudging to bridge the gap between environmental attitude and behavior in the usage of smart home applications" [International Journal of Information Management 72 (2023) 102665]}, series = {International journal of information management}, volume = {76}, journal = {International journal of information management}, publisher = {Elsevier}, address = {Oxford}, issn = {0268-4012}, doi = {10.1016/j.ijinfomgt.2024.102774}, pages = {2}, year = {2024}, abstract = {We would like to inform the readers and editors of the journal that we have discovered some errors in the references of our paper. These errors were brought to our attention by a reader who noticed some inconsistencies between the citations in the text and the bibliography. Upon further investigation, we realized that our literature management software had mistakenly linked some of the references to wrong or non-existent sources. We apologize for this oversight and assure you that it did not affect the validity or quality of our arguments and results, which were based on the correct sources. Below you find a list of the incorrect references along with their corresponding correct ones. We hope that this correction statement will clarify any confusion or misunderstanding that may have arisen from this mistake. The authors would like to apologise for any inconvenience caused.}, language = {en} } @phdthesis{Poerschke2024, author = {P{\"o}rschke, Alexander}, title = {Koalitionsbildung und Gesetzgebung im Semi-Parlamentarismus}, doi = {10.25932/publishup-63449}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-634498}, school = {Universit{\"a}t Potsdam}, pages = {xvi, 265}, year = {2024}, abstract = {Der Semi-Parlamentarismus beschreibt das Regierungssystem, in dem die Regierung von einem Teil des Parlaments gew{\"a}hlt wird und abberufen werden kann, von einem anderen Teil des Parlaments aber unabh{\"a}ngig ist. Beide Kammern m{\"u}ssen dabei der Gesetzgebung zustimmen. Dieses von Steffen Ganghof klassifizierte System erg{\"a}nzt g{\"a}ngige Regierungssystemtypologien, wie sie beispielsweise von David Samuels und Matthew Shugart genutzt werden. Der Semi-Parlamentarismus ist der logische Gegenpart zum Semi-Pr{\"a}sidentialismus, bei dem nur ein Teil der Exekutive von der Legislative abh{\"a}ngt, w{\"a}hrend im Semi-Parlamentarismus die Exekutive von nur einem Teil der Legislative abh{\"a}ngt. Der Semi-Parlamentarismus verk{\"o}rpert so ein System der Gewaltenteilung ohne einen exekutiven Personalismus, wie er durch die Direktwahl und Unabh{\"a}ngigkeit der Regierungchef:in im Pr{\"a}sidentialismus hervorgerufen wird. Dadurch ist der Semi-Parlamentarismus geeignet, Unterschiede zwischen Parlamentarismus und Pr{\"a}sidentialismus auf den separaten Einfluss der Gewaltenteilung und des exekutiven Personalismus zur{\"u}ckzuf{\"u}hren. Die Untersuchung des Semi-Parlamentarismus ist daher f{\"u}r die Regierungssystemliteratur insgesamt von Bedeutung. Der Semi-Parlamentarismus ist dabei kein rein theoretisches Konstrukt, sondern existiert im australischen Bundesstaat, den australischen Substaaten und Japan. Die vorliegende Dissertation untersucht erstmals umfassend die Gesetzgebung der semi-parlamentarischen Staaten als solchen. Der Fokus liegt dabei auf den zweiten Kammern, da diese durch die Unabh{\"a}ngigkeit von der Regierung der eigentliche Ort der Gesetzgebung sind. Die Gesetzgebung in Parlamentarismus und Pr{\"a}sidentialismus unterscheidet sich insbesondere in der Geschlossenheit der Parteien, der Koalitionsbildung und dem legislativen Erfolg der Regierungen. Diese Punkte sind daher auch von besonderem Interesse bei der Analyse des Semi-Parlamentarismus. Die semi-parlamentarischen Staaten unterscheiden sich auch untereinander teilweise erheblich in der institutionellen Ausgestaltung wie den Wahlsystemen oder den verf{\"u}gbaren Mitteln zur {\"U}berwindung von Blockadesituationen. Die Darstellung und die Analyse der Auswirkungen dieser Unterschiede auf die Gesetzgebung ist neben dem Vergleich des Semi-Parlamentarismus mit anderen Systemen das zweite wesentliche Ziel dieser Arbeit. Als Fundament der Analyse habe ich einen umfangreichen Datensatz erhoben, der alle Legislaturperioden der australischen Staaten zwischen 1997 und 2019 umfasst. Wesentliche Bestandteile des Datensatzes sind alle namentlichen Abstimmungen beider Kammern, alle eingebrachten und verabschiedeten Gesetzen der Regierung sowie die mit Hilfe eines Expert-Surveys erhobenen Parteipositionen in den relevanten Politikfeldern auf substaatlicher Ebene. Haupts{\"a}chlich mit der Hilfe von Mixed-Effects- und Fractional-Response-Analysen kann ich so zeigen, dass der Semi-Parlamentarismus in vielen Aspekten eher parlamentarischen als pr{\"a}sidentiellen Systemen gleicht. Nur die Koalitionsbildung erfolgt deutlich flexibler und unterscheidet sich daher von der typischen parlamentarischen Koalitionsbildung. Die Analysen legen nahe, dass wesentliche Unterschiede zwischen Parlamentarismus und Pr{\"a}sidentialismus eher auf den exekutiven Personalismus als auf die Gewaltenteilung zur{\"u}ckzuf{\"u}hren sind. Zwischen den semi-parlamentarischen Staaten scheinen vor allem die Kontrolle des Medians beider Parlamentskammern durch die Regierung und die M{\"o}glichkeit der Regierung, die zweite Kammer mitaufzul{\"o}sen, zu entscheidenden Unterschieden in der Gesetzgebung zu f{\"u}hren. Die Kontrolle des Medians erm{\"o}glicht eine flexible Koalitionsbildung und f{\"u}hrt zu h{\"o}heren legislativen Erfolgsraten. Ebenso f{\"u}hrt eine m{\"o}glichst leichte Aufl{\"o}sungsm{\"o}glichkeit der zweiten Kammern zu h{\"o}heren legislativen Erfolgsraten. Die Parteigeschlossenheit ist unabh{\"a}ngig von diesen Aspekten in beiden Kammern der semi-parlamentarischen Parlamente sehr hoch.}, language = {de} } @phdthesis{Sareeto2024, author = {Sareeto, Apatsara}, title = {Algebraic proberties of a subsemigroup of the symmetric inverse semigroup}, school = {Universit{\"a}t Potsdam}, pages = {92}, year = {2024}, language = {en} }