@phdthesis{Mladenov2024, author = {Mladenov, Mladen}, title = {Running in the Hamster Wheel. The Foreign Policy of Serbia between National Identity and the International Society.}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14702}, school = {Universit{\"a}t Passau}, pages = {ii, 51 Seiten}, year = {2024}, abstract = {The thesis addresses a current topic related to the foreign policy of Serbia whereby Serbian foreign policy is analysed with reference to its domestic factors - in particular national identity - and also with regards to Serbia's foreign factors, such as the Europeanization process and the nature of the international system. The overarching focus of the thesis is laid on the following puzzle: in spite of not attaining self-declared foreign policy goals and changing dynamics at the systemic level, Serbia's foreign policy appear to be stable over time. In each of the five publications comprising the thesis, a narrower aspect of this puzzle is addressed.}, language = {en} } @article{ErdoganHassen, author = {Erdogan, G{\"u}lsah and Hassen, Wiem Fekih}, title = {Charging scheduling of hybrid energy storage systems for EV charging stations}, series = {Energies}, volume = {2023}, journal = {Energies}, number = {16}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/en16186656}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14128}, pages = {29 Seiten}, abstract = {The growing demand for electric vehicles (EV) in the last decade and the most recent European Commission regulation to only allow EV on the road from 2035 involved the necessity to design a cost-effective and sustainable EV charging station (CS). A crucial challenge for charging stations arises from matching fluctuating power supplies and meeting peak load demand. The overall objective of this paper is to optimize the charging scheduling of a hybrid energy storage system (HESS) for EV charging stations while maximizing PV power usage and reducing grid energy costs. This goal is achieved by forecasting the PV power and the load demand using different deep learning (DL) algorithms such as the recurrent neural network (RNN) and long short-term memory (LSTM). Then, the predicted data are adopted to design a scheduling algorithm that determines the optimal charging time slots for the HESS. The findings demonstrate the efficiency of the proposed approach, showcasing a root-mean-square error (RMSE) of 5.78\% for real-time PV power forecasting and 9.70\% for real-time load demand forecasting. Moreover, the proposed scheduling algorithm reduces the total grid energy cost by 12.13\%.}, language = {en} } @unpublished{PantaleonOsuna2024, author = {Pantale{\´o}n Osuna, {\´A}lvaro}, title = {Climate change as a driver of migration? A comparative case study in eastern and northern Ghana}, number = {1}, address = {Passau}, doi = {10.15475/mitrawa.upa1}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14585}, pages = {12 Seiten}, year = {2024}, abstract = {Academic studies and media reports have pointed to climate change as a dominant factor responsible for future mass migrations from and within the Global South. In response to the deterministic nature of their estimates and predictions, this research explores the link that migrants establish between the environmental changes they experience and migration as a climate adaptation strategy. Furthermore, the overlaps between the profile and migratory behavior of those who manifest a greater presence of climate change in their migratory processes and their counterparts are analysed to identify potential unique climate migration patterns and practices. The quantitative analysis of data gathered in the context of the Mitra|WA project in Ghana's Eastern and Northern Regions in 2022 reveals that, while migration is not predominantly propelled by climate change climate, it does not constitute a new form of mobility demarcated from existing migration patterns and practices. This paper provides an opportunity to redirect future research towards the factors that determine the agency of individuals in response to climate hazards and to explore the role of climate change in a set of drivers of migration in a West African setting.}, language = {en} } @article{HassenMaher2024, author = {Hassen, Wiem Fekih and Maher, Challouf}, title = {Long short-term renewable energy sources prediction for grid-management systems based on stacking ensemble model}, series = {Energies}, volume = {2024}, journal = {Energies}, number = {17(13)}, doi = {10.3390/en17133145}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14649}, pages = {19 Seiten}, year = {2024}, abstract = {The transition towards sustainable energy systems necessitates effective management of renewable energy sources alongside conventional grid infrastructure. This paper presents a comprehensive approach to optimizing grid management by integrating Photovoltaic (PV), wind, and grid energies to minimize costs and enhance sustainability. A key focus lies in developing an accurate scheduling algorithm utilizing Mixed Integer Programming (MIP), enabling dynamic allocation of energy resources to meet demand while minimizing reliance on cost-intensive grid energy. An ensemble learning technique, specifically a stacking algorithm, is employed to construct a robust forecasting pipeline for PV and wind energy generation. The forecasting model achieves remarkable accuracy with a Root Mean Squared Error (RMSE) of less than 0.1 for short-term (15 min and one day ahead) and long-term (one week and one month ahead) predictions. By combining optimization and forecasting methodologies, this research contributes to advancing grid management systems capable of harnessing renewable energy sources efficiently, thus facilitating cost savings and fostering sustainability in the energy sector.}, language = {en} } @article{PatilGhasemideMeer2024, author = {Patil, Amit and Ghasemi, Abdorasoul and de Meer, Hermann}, title = {Analysis of protection blinding in active distribution grids}, series = {IET Renewable Power Generation}, journal = {IET Renewable Power Generation}, doi = {10.1049/rpg2.13037}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14661}, pages = {15 Seiten}, year = {2024}, abstract = {Protection blinding is a challenging issue in renewables-penetrated distribution grids and refers to a situation where a circuit breaker may not trip due to fault current contribution from distributed generation. This research addresses how the distributed generation location and capacity impact the operation of the circuit breaker in terms of the response time of the circuit breakers. The relative electrical distances of the faults and distributed generation to the circuit breakers are considered. The impact of distributed generation capacity considering the fault location is characterized using a new index called the heterogeneity index. The electrical distance between distributed generations and circuit breakers and the electrical distance between fault and circuit breaker is considered by a second new index called the electrical distance ratio. Data analysis on simulation results shows that these indices capture the phenomena of protection blinding caused by distributed generation. Results show that a higher distributed generation penetration and faults that are electri cally further away from a circuit breaker show severe cases of protection blinding captured by the indices. Furthermore, it is demonstrated how these indices can identify the worst impacted locations in the distribution grid. A key result is that protection blinding does not necessarily occur solely due to the presence of distributed generation between a circuit breaker and a fault, but is dependent on factors such as distributed generation location in the distribution grid, fault level, fault level distribution across the generation units and fault location.}, language = {en} } @misc{Maegdefrau2024, author = {M{\"a}gdefrau, Jutta}, title = {Planung kompetenzorientierten Unterrichts}, series = {Vorbereitung der Schulpraxis: Studientexte zur Schulp{\"a}dagogik}, journal = {Vorbereitung der Schulpraxis: Studientexte zur Schulp{\"a}dagogik}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14574}, pages = {8 Seiten}, year = {2024}, abstract = {Der Beitrag stellt auf der Basis der kritisch-konstruktiven Didaktik von Wolfgang Klafki eine Unterrichtsplanung in sieben Schritten vor, an der entlang insbesondere Studierende oder Referendar:innen ihre schriftlichen Unterrichtsvorbereitungen verfassen k{\"o}nnen. Im Sinne einer schrittweisen Ann{\"a}herung an die komplexe Praxis professioneller Unterrichtsplanung wird hier eine gut strukturierte Variante vorgeschlagen, auf der sp{\"a}ter aufgebaut werden kann.}, subject = {Unterrichtsplanung}, language = {de} } @phdthesis{Hauke2024, author = {Hauke, Alexandra}, title = {Ecofeminism and the Gothic Archives of American Folk Horror : Shadows of the Anthropos}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14768}, school = {Universit{\"a}t Passau}, pages = {274}, year = {2024}, abstract = {This study explores American folk horror as a mode of inquiry into the literary, cultural, filmic, ecological, and political histories of the United States. By using ecofeminist theory to read American folk horror against its roots in the frontier gothic, a genre concerned with the realities and afterlives of American settler colonialism, in turn inextricably linked with the U.S.' founding myths and national narratives that developed since the arrival of the first European settlers, my approach uncovers the dual and simultaneous exploitation of women and nature since 1492, focusing on the ways human and non-human Others continue to be at the mercy of anthropocentric and capitalocentric systems. American folk horror as genre, and the frontier gothic as its archive, allows us to see the ways American founding narratives serve as and word like folklore, contributing to the perpetuation of discrimination against underprivileged groups, especially those who are seen as nature, like women. This book offers a lengthy theorization of the genre as well as both ecofeminist readings of select texts of American folk horror (Darren Aronofsky's mother!, Shirley Jackson's We Have Always Lived in the Castle, Robert Eggers's The VVitch: A New-England Folktale) and a first discussion of a potential corpus of the genre ranging from frontier gothic literature and contemporary film to video games of the 2020s.}, subject = {{\"O}kofeminismus}, language = {en} } @unpublished{KloepfWehner2024, author = {Kl{\"o}pf, Tobias and Wehner, Stefanie}, title = {Vulnerabilities and capacities : dealing with coastal flooding in Ghana´s Volta Region}, number = {2}, address = {Passau}, doi = {10.15475/mitrawa.upa2}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14597}, pages = {14 Seiten}, year = {2024}, abstract = {Coastal flooding events pose an existential threat to populations around the world, particularly in the Global South. As a result of climate change and other, direct forms of anthropogenic interference, the magnitude and frequency of such floodings is predicted to continuously increase in the near future. Therefore, it is important to understand the vulnerability of affected people to implement appropriate measures. This research presents a case study on coastal flooding and its impact on livelihoods in the Volta Region of Ghana. The paper utilizes a vulnerability framework that focuses on exposure, susceptibility, as well as the capacities to anticipate, cope with, and recover from the effects of natural hazards. Based on a qualitative approach, the study focusses on those households who were directly affected of a severe tidal flood in November 2021, leading to a total destruction of their property. The research was conducted in March, July and August 2022. It revealed that the studied group had low capacity to anticipate and had no contingency plans in case of relocation. Further, we discovered different strategies that people applied to deal with the situation eight months after the flood event. Most households applied (short term) coping strategies to reestablish their former marine-based livelihood systems. Adaption in terms of long-term adjustment of their livelihoods played only a minor role and could be found in form of out-migration in a limited number of households.}, language = {en} } @book{Hartwig2021, author = {Hartwig, Susanne}, title = {?'Discapacidad?}, editor = {Hartwig, Susanne}, publisher = {Peter Lang}, address = {Berlin}, isbn = {978-3-631-76311-7}, doi = {10.3726/b14456}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-10040}, publisher = {Universit{\"a}t Passau}, pages = {273 Seiten}, year = {2021}, abstract = {La diversidad funcional, entendida como una afecci{\´o}n corporal, cognitiva o ps{\´i}quica, a menudo altera gravemente la participaci{\´o}n de las personas en la vida colectiva. En ocasiones, la diversidad funcional tambi{\´e}n puede venir acompa{\~n}ada de una estigmatizaci{\´o}n social muy marcada. El presente volumen ofrece una de las primeras aproximaciones a la representaci{\´o}n de la diversidad funcional en el {\´a}mbito hisp{\´a}nico. Los trabajos que se incluyen en este libro se encargan de mostrar los posibles acercamientos te{\´o}ricos y pr{\´a}cticos a la representaci{\´o}n de la diversidad funcional, a trav{\´e}s de un variado corpus integrado por obras literarias, esc{\´e}nicas, cinematogr{\´a}ficas y audiovisuales, extra{\´i}das de la creaci{\´o}n hisp{\´a}nica contempor{\´a}nea. Functional diversity, understood as a bodily, cognitive or psychic affection, often seriously disrupts the participation of people in collective life. At times, functional diversity can also be accompanied by a strong social stigma. This volume offers one of the first approaches to the representation of functional diversity in the Hispanic sphere. The works included in this book are in charge of showing the possible theoretical and practical approaches to the representation of functional diversity, through a varied corpus composed of literary, scenic, cinematographic and audiovisual works, extracted from the contemporary Hispanic creation.}, language = {es} } @phdthesis{Stoffer2024, author = {Stoffer, Gloria}, title = {Three essays on b2b solution selling - challenges in sales, contracting, and pricing}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14728}, school = {Universit{\"a}t Passau}, pages = {VIII, 165 Seiten}, year = {2024}, abstract = {Offering solutions impose manifold challenges on suppliers. To master these challenges, suppliers need excellent commercial capabilities. This thesis considers these challenges and opportunities in sales, contracting, and pricing of complex B2B solutions in three essays: Essay 1 addresses the increased complexity for solution salespeople, who represent an essential strategic asset in solution selling. In-depth interviews with solution sales managers in study 1 and survey data from matched sales manager-salesperson dyads in study 2, reveal nine specific equifinal configurations of key personal and procedural competencies that qualify individual salespeople in their role and thus determine their solution sales success. The focus of essay 2 lies on B2B export relationships for complex product-service combinations in an international context. A regression analysis based on a survey study with 198 responses shows several direct and indirect effects of contractual and cultural constructs. The results give insights under which cultural framework conditions contract specificity serves as a safeguarding mechanism against uncertainty and opportunism. Essay 3 examines how the bidirectional agency relationship between suppliers and customers and the performance uncertainty of a solution influence B2B customers' acceptance of performance-based pricing (PBP). Drawing on a cross-industry survey with 196 managers of B2B firms, this study contributes to extend PBP literature by showing how bidirectional agency relationships shape customers' acceptance of PBP. In sum, this thesis contributes to a better understanding on how to optimize commercial capabilities in the context of national and international solution selling. It thereby focuses on addressing recently identified causes that hinder B2B firms from increasing their margins through solution selling by (1) optimizing the sales force through a better understanding of important resources and capabilities for solution selling, (2) optimizing their contractual set-up through a better understanding of cultural factors and the interplay with contract specificity, and 3) optimizing price policy through a better understanding of framework conditions, which have an impact on customers' acceptance of PBP.}, language = {en} } @phdthesis{Daschner2024, author = {Daschner, Stefan}, title = {Essays on Trust, Behavior, and Decision-Making in the Human-Algorithm Interaction}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14749}, school = {Universit{\"a}t Passau}, pages = {XVII, 154 Seiten}, year = {2024}, abstract = {With recent progresses in the field of artificial intelligence (AI), algorithms can support more complex tasks (Frey and Osborne, 2017) that seemed safe from automation a few years ago (Brynjolfsson and McAfee, 2012). They can even outperform human decision-making in many task domains (Meehl, 1954; Dawes et al., 1989). The prominent defeat of Garry Kasparov, the world champion in chess, in 1997 is a milestone for the potentials of algorithms, increasing the value of IBM's stock increased by \$18 billion (Norvig and Russell, 2010). More recently, universal chatbots such as ChatGPT and the Bing Chatbot Sydney can influence millions of users and provide them answers to a broad range of tasks. To gain a competitive edge, companies invest heavily in algorithmic systems (Kappelman et al., 2021), which are considered as one of the most important drivers of today's economy (Brynjolfsson and McAfee, 2011; Hogharth and Makridakis, 1981; {\"O}nkal et al., 2019). Particularly in management accounting, an algorithmic data analysis offers the potential to support a high decision quality, making their usage a key factor for success. However, algorithms can not only support, but also manipulate human decision-making (Roose et al., 2023). Algorithmic advice can lead to overtrust, i.e. to the heuristic replacement of vigilant information seeking and processing in favor of the advice provided (Mosier et al., 2001). The implementation of algorithmic decision support systems is thus no panacea to improve human decision-making. In contrast, they can entail new risks, such as the uncritical use of these algorithms (Boden, 2016). Yet, this 'dark side' of algorithms is not sufficiently investigated in the field of management accounting. With advances in machine learning, algorithmic support can become even more of a black box, blurring the reference points for evaluating its advice quality and thus increasing the risk of overtrust. Stephen Hawking even warns that AI will be "either the best, or the worst thing, ever to happen to humanity" (Alex Hern in: The Guardian: Stephen Hawking: AI will be 'either best or worst thing' for humanity, 19th October 2016). Interacting with such algorithmic systems therefore requires data literacy skills for an appropriate use. They seem to be a crucial prerequisite in today's data-driven world to reap of the benefits of algorithmic systems. If no reflective and critical interaction between human and algorithm can be ensured, the trend towards a digitalized world will be a race against the algorithm (Brynjolfsson and McAfee, 2011). This dissertation takes this understudied critical perspective on the increasing implementation of algorithmic systems and sheds light on different aspects of human-algorithm interaction, ranging from the ability to use data visualization tools to trust calibrations and critical evaluations of algorithmic advices. Study I investigates an adequate information representation of subjective multiple criteria decision problems, an important task in management accounting, to support human decision-making. Study II distinguishes different designs of the human-algorithm interaction investigated in the trust in automation literature and compiles factors influencing the calibration of trust and behavior toward the true capabilities of the algorithm. Study III examines the role of performance feedback on trust and advice usage in a forecasting task for a better understanding of the recently observed phenomenon 'algorithm aversion'. Finally, Study IV focusses on the risk of overtrust in advice in repeated interactions with a forecasting advisor and investigates the calibration of advice usage. Each study thereby represents an independent contribution and contains all information relevant to the respective research questions asked in the study.}, language = {en} }