@article{MaginKoestersJanduraetal.2025, author = {Magin, Melanie and K{\"o}sters, Raphael and Jandura, Olaf and Weiß, Ralph and Stark, Birgit and Udris, Linards and Klein, Miriam and Riedl, Andreas A.}, title = {Viewpoint Diversity, Balance, Deliberativeness: Assessing the Media Performance of Migration Coverage Multi-Dimensionally Based on Deliberative Democratic Theories}, series = {Mass Communication and Society}, journal = {Mass Communication and Society}, publisher = {Informa}, issn = {1520-5436}, doi = {10.1080/15205436.2025.2461082}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-51020}, pages = {25}, year = {2025}, abstract = {The issue of migration is highly salient in public debates in many countries. Given this salience and the risk of political instrumentalization, often by actors from the far right, it is important for citizens to receive high-quality, differentiated information on the migration issue. This touches upon the question of media performance. While there is abundant research on the media portrayal of the migration issue, this research strand is, surprisingly, hardly linked to research on media performance. We establish this link and present an innovative, sophisticated framework for standardized content analyses on migration. It combines three standards of media performance that are key to deliberative democratic theories—viewpoint diversity, balance, and deliberativeness—and utilizes value frames and the sociological concept of idea elements to measure viewpoint diversity and balance. A first empirical test of our newly developed approach, taking Germany as a case, shows noticeable differences in the media performance of 11 outlets analyzed. This test proves the applicability of our framework, which provides a valuable starting point for future comparative research on the media performance of migration coverage across countries and over time.}, subject = {Meinungsvielfalt}, language = {en} } @article{MackJanduraMaurer2025, author = {Mack, Matthias and Jandura, Olaf and Maurer, Marcus}, title = {The effects of constructive journalism: Towards a theoretical framework}, series = {Journalism}, journal = {Journalism}, publisher = {SAGE Publications}, issn = {1464-8849}, doi = {10.1177/14648849251395798}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58634}, pages = {1 -- 20}, year = {2025}, abstract = {News media coverage mainly focuses on problems and conflicts, resulting in unintended negative consequences for democracy and journalism itself. Constructive journalism aims to address these issues by emphasizing solution-oriented reporting. However, research on its effects remains inconsistent, mainly due to vague definitions of constructive journalism and a lack of theoretical foundation. This paper first proposes a content-centered definition of constructive journalism, suggesting three dimensions: balance, matter-of-factness, and focus on solutions. Using a series of established theories, we then present a theoretical framework that models the impacts of the content dimensions in a chain of effects from emotions to cognitive and conative variables. Our approach offers a systematic basis for future research by enabling experimental analysis of operationalizable and empirically separable content dimensions and by integrating research on constructive journalism into a variety of established media effect theories. Thus, we meet the demand for a stronger theoretical focus and aim to clarify constructive journalism's impact on audiences.}, subject = {Journalismus}, language = {en} } @article{MabroukNajiBenimetal.2022, author = {Mabrouk, Riheb and Naji, Hassane and Benim, Ali Cemal and Dhahri, Hacen}, title = {A State of the Art Review on Sensible and Latent Heat Thermal Energy Storage Processes in Porous Media: Mesoscopic Simulation}, series = {Applied Sciences}, volume = {12}, journal = {Applied Sciences}, number = {14}, publisher = {MDPI}, doi = {10.3390/app12146995}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40343}, year = {2022}, language = {en} } @inproceedings{LippelBihlmeierStuhlsatz2025, author = {Lippel, Jens and Bihlmeier, Richard and Stuhlsatz, Andr{\´e}}, title = {A Computer Vision Approach to Fertilizer Detection and Classification}, series = {Proceedings of the 20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications}, booktitle = {Proceedings of the 20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications}, publisher = {SCITEPRESS - Science and Technology Publications}, doi = {10.5220/0013189300003912}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-54735}, pages = {563 -- 569}, year = {2025}, subject = {Maschinelles Lernen}, language = {en} } @article{LepaSteffensHerzogetal.2020, author = {Lepa, Steffen and Steffens, Jochen and Herzog, Martin and Egermann, Hauke}, title = {Popular Music as Entertainment Communication: How Perceived Semantic Expression Explains Liking of Previously Unknown Music}, series = {Media and Communication}, volume = {8}, journal = {Media and Communication}, number = {3}, publisher = {Cogitatio}, doi = {10.17645/mac.v8i3.3153}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-23602}, pages = {191 -- 204}, year = {2020}, language = {en} } @article{LangmannRojasPena2016, author = {Langmann, Reinhard and Rojas-Pe{\~n}a, Leandro}, title = {PLCs as Industry 4.0 Components in Laboratory Applications}, series = {International Journal of Online Engineering}, volume = {12}, journal = {International Journal of Online Engineering}, number = {7}, publisher = {iJOE}, issn = {1861-2121}, doi = {10.3991/ijoe.v12i07.5828}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-28089}, pages = {37}, year = {2016}, language = {en} } @article{KoehlerBoegelDriessenJosupeitetal.2024, author = {K{\"o}hler, Denis and Boegel-Driessen, Josephine Alexandra and Josupeit, Jan and Issa-Keller, Sarah-Joelle and M{\"u}ller, Romina and Stricker, Johannes}, title = {Reliability and Validity of the Comprehensive Assessment of Psychopathic Personality—Self-Report—German Version (CAPP-SR-GV) in a German Non-Criminal Sample}, series = {Behavioral Sciences}, volume = {14}, journal = {Behavioral Sciences}, number = {9}, publisher = {MDPI}, issn = {2076-328X}, doi = {10.3390/bs14090827}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-46018}, year = {2024}, abstract = {The structure of psychopathy is conceptualized differently in various models and no consensus has yet been reached. This study aimed to further clarify psychopathy's content and structure by validating the German Comprehensive Assessment of Psychopathic Personality—Self-Report (CAPP-SR). For this purpose, we used a sample of n = 458 participants. The CAPP's six factors were replicated in an exploratory factor analysis. Further confirmatory analysis revealed recommendations for optimizing the CAPP. Thus, both an optimized version and the original CAPP-SR were examined. The construct validity of both versions was then examined using a different self-rating instrument for psychopathy, the Triarchic Psychopathy Measure. The implications of the findings and further research directions are discussed.}, subject = {CAPP}, language = {en} } @article{KuskeVondebergMinartzetal.2024, author = {Kuske, Silke and Vondeberg, Carmen and Minartz, Peter and V{\"o}cking, Mara and Obert, Laura and Hemming, Bernhard and Bleck, Christian and Znotka, Matti and Ose, Claudia and Heistermann, Peter and Schmitz-Kießler, Jutta and Karrenbrock, Anne and C{\"u}rlis, Diana}, title = {Emotional and psychological safety in the context of digital transformation in healthcare: a mixed-method strategic foresight study}, series = {BMJ Health \& Care Informatics}, volume = {31}, journal = {BMJ Health \& Care Informatics}, number = {1}, publisher = {BMJ}, issn = {2632-1009}, doi = {10.1136/bmjhci-2024-101048}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-46578}, year = {2024}, abstract = {Perceived safety has received attention in the digital transformation of healthcare. However, the impact of perceived safety on the future of digital transformation has not been fully elucidated. To investigate perceived safety in the context of the digital transformation of healthcare while considering relevant needs, influencing factors and impacts, including crisis events, to provide recommendations for action based on a participatory, multiperspective, strategic 5-year foresight viewpoint. A strategic foresight study is conducted via a participatory mixed-methods design to understand the present related factors that are likely to be relevant to future developments in the digital transformation of healthcare.ResultsWe observed that feeling safe plays a complex role in the digital transformation of healthcare. How perceived safety is considered has and will continue to impact the individual, organisational and system levels. Regarding a potential crisis event, controversial consequences have been observed. At its core, digital (health) literacy related to equity of access and human support is one of the crucial aspects in the context of perceived safety related to the successful implementation of digital technologies in healthcare. The scenarios showed that a continuation of the current situation over the next 5 years may result in partly desirable and partly undesirable outcomes. Concrete key factors should be used in practice to support both education and healthcare quality development and research. The essence of the scenarios should serve as a starting point for research agenda setting and political decision-making in the future. However, additional research is needed to quantify the correlations among the relevant factors.}, subject = {Digitalisierung}, language = {en} } @techreport{KruegerHallikKalevetal.2024, author = {Kr{\"u}ger, Karsten and Hallik, Maarja and Kalev, Leif and Kostakos, Georgios and Toscano, Beatriz and Virchow, Fabian}, title = {Conceptual Framework and Vision: Responsible Democratic Citizenship and Education for Democracy}, publisher = {Zenodo}, organization = {DEMOCRAT project on Education for Democracy, Horizon Europe}, doi = {10.5281/zenodo.14526029}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-55386}, pages = {71}, year = {2024}, abstract = {The DEMOCRAT project aims to address society's democratic deficits by maximising opportunities for mutual positive reinforcement between education and democratic participation through transformative learning for young people. DEMOCRAT builds on the premise that education plays a fundamental role in the development of democratic societies by equipping citizens with the values, knowledge and skills necessary for active participation, critical thinking and informed decision-making. DEMOCRAT was conceived in response to the plethora of ongoing crises affecting Europe and the world. These crises test the effectiveness of democratic institutions and practices, as well as the resilience of individuals and societies. A review of civic education in Europe has shown that, despite the importance given to democratic education in public discourse, it is generally not considered a major topic for education itself. The project's core objective is to reinforce the sustainability and resilience of democracy in Europe by updating and strengthening Education for Democracy (EfD), through participatory redesign and implementation of context-specific curricula and learning methods in a framework of rapid digitalisation. The novelty of DEMOCRAT lies in the dual nature of its educational objectives: alongside exploring the conceptual or historical frameworks concerning the development of the signifier 'democracy', the project aims to operationalise it in various fields of social tension (inclusion, environmental awareness, gender issues) by encouraging civic behaviour, active participation and engagement, communication skills, critical thinking and problem solving through education for democracy. DEMOCRAT's action goes in three main directions that are the key aspects of its methodological approach: Firstly, a conceptual research concerned with definitions, concepts and historical debates on the basis of the values agreed by the EU and Agenda 2030, making sense of the structural challenges that threaten democracy. This preliminary conceptual effort identifies research gaps and includes an outline of a framework of competences for responsible democratic citizenship. It serves as a basis for the design of the practical aspect of the project, the pilot laboratories for the implementation of democracy education. Secondly, the so-called living labs where the community of education (schools, parents and students' associations, policy makers) is engaged in debate and the co-creation of transformative learning approaches in national and transnational settings. Adding to these activities the digital platform AGORA, it could become like a one-stop-shop for educational community in Europe to find inspiration. These living labs will also be outstanding sources for the evaluation of trends, continuous assessment as well as recommendations for best practices and policy making. Finally, and beyond the classroom environment, DEMOCRAT aims at intervening into the educational environment (schools, informal training) through the elaboration of a European Curriculum for EfD. This involves introducing dynamic and innovative didactic-practical units (methods, approaches or tools) into the existing curriculum or classroom practice in which students and educators actively participate in or prepare for real-world democratic processes and civic activities.}, subject = {Politische Bildung}, language = {en} } @article{KretschmarSchmiederNiemann, author = {Kretschmar, Dominik and Schmieder, Matthias and Niemann, J{\"o}rg}, title = {Knowledge Management Concept to Compensate a High Employee Fluctuation}, series = {Acta Technica Napocensis. Series: Applied Mathematics, Mechanics and Engineering}, volume = {61}, journal = {Acta Technica Napocensis. Series: Applied Mathematics, Mechanics and Engineering}, number = {III}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-44818}, pages = {483 -- 488}, abstract = {Knowledge is our most valuable asset! Due to the increasing fluctuation caused by demographic change, the change in society and the industry, companies are increasingly confronted with knowledge management. Therefore, companies have problems with carrying out projects effectively. There are several models, methods and tools to develop an effective concept for knowledge management. Can the process capability of projects be ensured despite high fluctuation? What appropriate methods and tools are available to manage knowledge? These and more questions are clarified in the course of this work and presented in a conceptual proposal.}, language = {en} } @inproceedings{KretschmarNiemann2024, author = {Kretschmar, Dominik and Niemann, J{\"o}rg}, title = {Meta-Analysis of Sustainability Management in Complex Development Environments: By Integrating Requirements into Systems Engineering Approaches}, series = {Proceedings of the Review of Management and Economic Engineering 9th International Management Conference "Rethinking Management in Adaptive Environments", Cluj-Napoca, Romania, 1echnical University of Cluj-Napoca, Romania,19 -21 September, 2024, Technical University of Cluj-Napoca, Romania}, booktitle = {Proceedings of the Review of Management and Economic Engineering 9th International Management Conference "Rethinking Management in Adaptive Environments", Cluj-Napoca, Romania, 1echnical University of Cluj-Napoca, Romania,19 -21 September, 2024, Technical University of Cluj-Napoca, Romania}, publisher = {UTPRESS}, issn = {3061-3892}, doi = {10.5281/zenodo.13890119}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-55374}, pages = {8}, year = {2024}, abstract = {Purpose - The complexity of developing product service systems continues to increase. At the same time, development cycles are becoming ever shorter and the requirements for safety, conformity and sustainability ever higher. In this article, a meta-analysis is carried out on the possibility of integrating sustainability aspects as requirements in a systems engineering approach and the differences are discussed. Methodology/approach - A systematic literature search of articles in ScienceDirect between 2016 and 2023 is carried out. The keywords are sustainability and system engineering incl. synonyms. In a further step, the papers are screened for their relevance to product service systems and the relevance for the purpose. Findings - To address sustainability in complex technical systems, a holistic, model-based approach is required to ensure that sustainability aspects are considered. By using frameworks and methods such as macPro² and SysLM, requirements and indicators for sustainability can be integrated into the development phase, whereas currently only the environmental dimension is usually considered via resource and energy indicators. Research limitations/implications - In order to achieve a complete picture, additional databases must be considered and research results from ongoing projects must be awaited.}, subject = {Systemtechnik}, language = {en} } @techreport{KostakosKruegerVirchow2025, author = {Kostakos, Georgios and Kr{\"u}ger, Karsten and Virchow, Fabian}, title = {Policy Brief: Education for Responsible Democratic Citizenship. A European Vision. Submitted Version}, publisher = {DEMOCRAT}, doi = {10.5281/zenodo.17777838}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60287}, pages = {17}, year = {2025}, abstract = {Democracy is the cornerstone of European identity, which is complementary to national identities. In view of the challenges democracy is currently facing, at both European and national level, such as growing polarisation, increasing threats to human security and expanding digitalisation, it is important to defend and consolidate it, as a sine-qua-non element of "the European way of life". Education for responsible democratic citizenship (RDC) or education for democracy (EfD) for short is a way of doing so. EfD strategies and tools to strengthen the democratic agency/capacity for action of citizens, the youth in particular, through transformative learning, has been the focus of the DEMOCRAT project (March 2023 to February 2026). This Policy Brief was initially drafted after the seven first months of the DEMOCRAT project but is now being finalised with the experience of two-and-a-half years of project implementation in mind. Key findings and proposed policy actions presented here include: · To safeguard democracy within the European Union, transformative education for democracy must be reinforced, also taking into account fast-moving digitalisation and fast-breached planetary boundaries. · The shift to transformative education for democracy should be based on a coherent competence framework defined in complementarity with the frameworks of citizenship competences proposed by the EU (Key Competences for Lifelong Learning) and the Council of Europe (Competences for Democratic Culture). The four key RDC competences identified by DEMOCRAT are: Solidary Participation, Deliberation, Judgement, and Democratic Resilience. · The above competence framework should be translated by EU member states and schools in different parts of Europe into a sample curriculum for responsible democratic citizenship adjusted to their education systems and societies. · Schools have to be laboratories of democratic practice on a daily basis and across subjects, not just for a few hours of civic education or education for democracy per week, and need to connect with a conducive local, regional, national, European, global and digital environment. · Students need to be aware of both their rights and responsibilities, and be guided to act on both, within their peer groups and in relation to their teachers, parents, local authorities and other relevant stakeholders. A crucial aspect of any approach to education for democracy is the competence of the teacher to create an environment in which the students can learn democracy in action and not just in words}, subject = {Demokratische Bildung}, language = {en} } @article{KokHuberKalischetal.2025, author = {Kok, Maurits and Huber, Florian and Kalisch, Svenja-Marei and Dogterom, Marileen}, title = {EB3-informed dynamics of the microtubule stabilizing cap during stalled growth}, series = {Biophysical Journal}, volume = {124}, journal = {Biophysical Journal}, number = {2}, publisher = {Elsevier}, issn = {1542-0086}, doi = {10.1016/j.bpj.2024.11.3314}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-53164}, pages = {227 -- 244}, year = {2025}, abstract = {Microtubule stability is known to be governed by a stabilizing GTP/GDP-Pi cap, but the exact relation between growth velocity, GTP hydrolysis, and catastrophes remains unclear. We investigate the dynamics of the stabilizing cap through in vitro reconstitution of microtubule dynamics in contact with microfabricated barriers, using the plus-end binding protein GFP-EB3 as a marker for the nucleotide state of the tip. The interaction of growing microtubules with steric objects is known to slow down microtubule growth and accelerate catastrophes. We show that the lifetime distributions of stalled microtubules, as well as the corresponding lifetime distributions of freely growing microtubules, can be fully described with a simple phenomenological 1D model based on noisy microtubule growth and a single EB3-dependent hydrolysis rate. This same model is furthermore capable of explaining both the previously reported mild catastrophe dependence on microtubule growth rates and the catastrophe statistics during tubulin washout experiments.}, subject = {Mikrotubulus}, language = {en} } @article{Kim2019, author = {Kim, Hyun Kang}, title = {Intensity, Manifestation, and Performance in the Politics of the Real}, series = {International Journal of Philosophy}, volume = {7}, journal = {International Journal of Philosophy}, number = {1}, publisher = {Science Publishing Group}, issn = {2330-7439}, doi = {10.11648/j.ijp.20190701.14}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-54465}, pages = {24 -- 30}, year = {2019}, abstract = {This study attempts to explain the concept of the real in terms of intensity, manifestation, and performance, and then outlines key aspects of the politics of the real. The politics of the real is based on an interruption of identification and an abrupt end of continuity, and intensity, manifestation, and performance are the modalities of the politics of the real. First, intensity is the principle of punctualization. It denotes an anti-dialectic and anti-systematic enterprise that aims to leave behind the paradigm of continuity. It acts as the counter-principle to overcome the Hegelian dialectic and historicism. It concerns the dimension before the formation of identity and thus functions as a categorical rejection of ontological identity. Consequently, it evolves into a figure of future politics, because it denies identity and instead affirms new inventions. Second, manifestation is a matter of politics, because politics shows itself as a matter of visibility and demonstration. Ultimately, politics is the fight over manifestation. Furthermore, manifestation is the modality of existence of the collective, since a new arising collective always manifests itself in the space of images. Finally, performance is an action concept and thus opposed to the static world-model. Hence, the world appears as the place for restructuring and reshaping. Performance renders reference and the classical notion of mimesis obsolete. It undermines the distinction between original and copy and instead affirms the permanent generating of new relations and nexuses. Hence, it is the generation of freedom. Ultimately, it acts as a disappearing intermediary between virtual intensity and actual manifestation. It is an anti-metaphysical concept of possibility that differs strictly from metaphysical possibility. Thus, intensity, manifestation, and performance each correspond to the virtual, actual, and possible of the real and thus are to be denoted as modalities of the politics of the real.}, subject = {Wirklichkeit}, language = {en} } @article{Kampes2020, author = {Kampes, C{\´e}line Fabienne}, title = {Tail or no Tail? Applicability of the Long Tail Theory to the German Online Media Market}, series = {Central European Journal of Communication}, volume = {13}, journal = {Central European Journal of Communication}, number = {3}, publisher = {University Press of Wroclaw}, issn = {1899-5101}, doi = {10.51480/1899-5101.13.3(27).4}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40123}, pages = {371 -- 389}, year = {2020}, abstract = {The Long Tail theory serves as an explanation for market change triggered through evolving online market conditions. However, it is often referred to without empirical validation, or with inconsistent findings on its applicability. Therefore, this paper analyses the applicability of the Long Tail theory to German online media offerings as of 2014 and 2016, focusing on offerings that serve information purposes (information offerings). Based on a unique dataset of commercially oriented online media offerings (Longitudinal IntermediaPlus 2014-2016), an analysis for three Long Tail characteristics (variety increase, opposing concentration between hit and niche offerings and niche market share increase) is conducted. By additionally distinguishing between political and entertainment-oriented information offerings as boundaries of democratized online market conditions the analysis reveals that the Long Tail theory is not fully applicable to any market sample, and especially not to politically oriented offerings.}, language = {en} } @article{KampaFinkeStalderetal.2022, author = {Kampa, Miriam and Finke, Johannes and Stalder, Tobias and Bucher, Leandra and Klapperich, Holger and Mertl, Fabian and Zimmer, Christian and Geiger, Christian and Hassenzahl, Marc and Klucken, Tim}, title = {Facilitating relaxation and stress reduction in healthy participants through a virtual reality intervention: study protocol for a non-inferiority randomized controlled trial}, series = {Trials}, volume = {23}, journal = {Trials}, publisher = {BMC}, issn = {1745-6215}, doi = {10.1186/s13063-022-06307-8}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40118}, year = {2022}, language = {en} } @article{KamiloğluSunBosetal.2024, author = {Kamiloğlu, Roza G. and Sun, Rui and Bos, Patrick and Huber, Florian and Attema, Jisk Jakob and Sauter, Disa A.}, title = {Tickling induces a unique type of spontaneous laughter}, series = {Biology Letters}, volume = {20}, journal = {Biology Letters}, number = {11}, publisher = {The Royal Society}, issn = {1744-957X}, doi = {10.1098/rsbl.2024.0543}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-47446}, year = {2024}, abstract = {Laughing is ubiquitous in human life, yet what causes it and how it sounds is highly variable. Considering this diversity, we sought to test whether there are fundamentally different kinds of laughter. Here, we sampled spontaneous laughs (n = 887) from a wide range of everyday situations (e.g. comedic performances and playful pranks). Machine learning analyses showed that laughs produced during tickling are acoustically distinct from laughs triggered by other kinds of events (verbal jokes, watching something funny or witnessing someone else's misfortune). In a listening experiment (n = 201), participants could accurately identify tickling-induced laughter, validating that such laughter is not only acoustically but also perceptually distinct. A second listening study (n = 210) combined with acoustic analyses indicates that tickling-induced laughter involves less vocal control than laughter produced in other contexts. Together, our results reveal a unique acoustic and perceptual profile of laughter induced by tickling, an evolutionarily ancient play behaviour, distinguishing it clearly from laughter caused by other triggers. This study showcases the power of machine learning in uncovering patterns within complex behavioural phenomena, providing a window into the evolutionary significance of ticking-induced laughter.}, subject = {Lachen}, language = {en} } @inproceedings{Jendreiko2024, author = {Jendreiko, Christian}, title = {Generative Logic: Teaching Prolog as Generative AI in Art and Design}, series = {ICLP-WS 2024 ICLP Workshops 2024: Workshop Proceedings of the 40th International Conference on Logic Programming (ICLP-WS 2024) co-located with the 40th International Conference on Logic Programming (ICLP 2024)}, volume = {3799}, booktitle = {ICLP-WS 2024 ICLP Workshops 2024: Workshop Proceedings of the 40th International Conference on Logic Programming (ICLP-WS 2024) co-located with the 40th International Conference on Logic Programming (ICLP 2024)}, editor = {Arias, Joaqu{\´i}n and Azzolini, Damiano and Basu, Kinjal and Dahl, Veronica and Hecher, Markus and Pacenza, Francesco and Saribatur, Zeynep and Varanasi, Sarat C.}, publisher = {RWTH Aachen}, address = {Aachen}, issn = {1613-0073}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-46771}, pages = {1 -- 11}, year = {2024}, abstract = {This paper introduces a method for teaching Prolog, especially to BA and MA students in art and design faculties. The method is called Exploring Generative Logic (EGL). The method is based on the concept of Generative Logic. Both methods are under development at the Faculty of Design, HSD, University of Applied Sciences, D{\"u}sseldorf. The basic idea of teaching Prolog with EGL is to present Prolog not as "another" programming language, but primarily as a logic AI. This perspective helps beginners gain a clear view of how Prolog works and focuses on understanding Prolog as a powerful generative AI, making it highly attractive in the domain of art and design. The author assumes that the EGL method can be easily adapted to other educational settings: education of non-programmers of all ages, including children in elementary or secondary schools, as well as students in other non-STEM curricula, to develop skills in logical thinking, digital literacy, AI literacy, and artistic literacy. The paper is divided into two parts: Part one provides an introduction to the basic ideas and objectives of the teaching method. Part two offers a description of the teaching method.}, language = {en} } @inproceedings{Jendreiko2025, author = {Jendreiko, Christian}, title = {The Simple Generative Logic Grammar: A tool for teaching logical thinking through visual research in art and design}, series = {CEUR Workshop Proceedings: Joint Proceedings of the Workshops and Doctoral Consortium of the 41st International Conference on Logic Programming, September 9-13, 2025, Rende, Italy}, volume = {4117}, booktitle = {CEUR Workshop Proceedings: Joint Proceedings of the Workshops and Doctoral Consortium of the 41st International Conference on Logic Programming, September 9-13, 2025, Rende, Italy}, editor = {Azzolini, Damiano and Batsakis, Sotirios and Borroto Santana, Manuel Alejandro and Bruno, Pierangela and Cecchi, Laura A. and Fandinno, Jorge and Hecher, Markus and Maratea, Marco and Morales, Jos{\´e} F. and Mu{\~n}iz, Brais and Papadakis, Emmanuel and Robaldo, Livio and Serafini, Luciano and Lo Scudo, Fbrizio and Tachmazidis, Ilias and Tarzariol, Alice and Vallati, Mauro and Wyner, Adam}, publisher = {RWTH Aachen}, issn = {1613-0073}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-59231}, pages = {11}, year = {2025}, abstract = {The Simple Generative Logic Grammar (SGLG) is a newly developed, very simply structured type of logic grammar designed for generating structured visual compositions. This paper examines its key features and explores its potential to play a central role in the educational framework Exploring Generative Logic (EGL) that I am currently developing. [1] At the heart of EGL is the idea of using the artistic creation of images composed of discrete elements to introduce students particularly in art and design to fundamental concepts in logic programming, formal grammars, and database systems in an accessible way.}, language = {en} } @inproceedings{JanduraWeinmann2023, author = {Jandura, Olaf and Weinmann, Carina}, title = {Greater Confusion in the Voter Market in Germany: Differences Between Subjective and Value-Based Categorization on the Left-Right Axis}, series = {Jahrestagung der DGPuK-Fachgruppe Rezeptions- und Wirkungsforschung 2022: Tagungsband}, booktitle = {Jahrestagung der DGPuK-Fachgruppe Rezeptions- und Wirkungsforschung 2022: Tagungsband}, editor = {Ziegele, Marc and K{\"u}mpel, Anna Sophie and Dienlin, Tobias}, publisher = {SSOAR}, address = {D{\"u}sseldorf}, doi = {10.21241/ssoar.96575}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-56419}, pages = {75 -- 92}, year = {2023}, abstract = {In den letzten Jahren war h{\"a}ufig von einem Rechtsruck in der Gesellschaft die Rede (O. Decker et al., 2016). Bev{\"o}lkerungsrepr{\"a}sentative Umfragedaten belegen diese These jedoch nicht. Weder die Allgemeine Bev{\"o}lkerungsumfrage der Sozialwissenschaften (ALLBUS) noch der European Social Survey zeigen f{\"u}r die letzten Jahrzehnte signifikante Ver{\"a}nderungen in der Selbstpositionierung der Befragten auf der Links-Rechts-Skala. Dies wirft die Frage auf, ob es sich bei dem behaupteten gesellschaftlichen Rechtsruck um ein soziologisches Wahrnehmungsph{\"a}nomen handelt, das durch die intensive {\"o}ffentliche Debatte verst{\"a}rkt wird, oder ob Zweifel an der Validit{\"a}t der politischen Selbstpositionierung auf der Links-Rechts-Skala angebracht sind. Der vorliegende Artikel befasst sich mit der letzteren Frage. Unsere Analysen ergaben, dass bei 31 \% der Befragten in unserer Stichprobe eine Divergenz zwischen der subjektiven Positionierung auf der Links-Rechts-Skala und einer wertbezogenen Positionierung besteht. Wir er{\"o}rtern, welche Variablen diese Divergenz erkl{\"a}ren k{\"o}nnen und welche Konsequenzen daraus f{\"u}r die kommunikationswissenschaftliche Forschung gezogen werden k{\"o}nnen.}, subject = {Politische Einstellung}, language = {en} } @article{JakabBraunAgnewetal.2024, author = {Jakab, Daniel and Braun, Alexander and Agnew, Cathaoir and Mohandas, Reenu and Deegan, Brian Michael and Molloy, Dara and Ward, Enda and Scanlan, Anthony and Eising, Ciar{\´a}n}, title = {SS-SFR: synthetic scenes spatial frequency response on Virtual KITTI and degraded automotive simulations for object detection}, series = {IET Conference Proceedings}, volume = {2024}, journal = {IET Conference Proceedings}, number = {10}, publisher = {Institution of Engineering and Technology (IET)}, issn = {2732-4494}, doi = {10.1049/icp.2024.3292}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-50080}, pages = {110 -- 117}, year = {2024}, language = {en} } @article{IqbalPfeiffelmannBenimetal.2018, author = {Iqbal, Sohail and Pfeiffelmann, Bj{\"o}rn and Benim, Ali Cemal and Joos, Franz}, title = {Numerical analysis of lifted hydrogen flame}, series = {MATEC Web of Conferences}, volume = {240}, journal = {MATEC Web of Conferences}, publisher = {edp sciences}, issn = {2261-236X}, doi = {10.1051/matecconf/201824001014}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-27950}, year = {2018}, language = {en} } @article{Hoerner2019, author = {H{\"o}rner, Fernand}, title = {Artistic Research between Language and Aesthetics}, series = {w/k - Zwischen Wissenschaft und Kunst}, journal = {w/k - Zwischen Wissenschaft und Kunst}, publisher = {Peter Tepe}, address = {D{\"u}sseldorf}, issn = {2628-1465}, doi = {10.55597/e3914}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-49858}, year = {2019}, abstract = {Is artistic research more than a utopia and what exactly is artistic research? This question will be explored here in the course of three articles. The first examines the relationship between science and art, and thus also with language and aesthetics. The central question concerns, first of all, how aesthetic and language-based cognition relate to one another and what this might signify for artistic research.}, subject = {K{\"u}nstlerische Forschung}, language = {en} } @article{HunkeHuberSteffens2025, author = {Hunke, Til and Huber, Florian and Steffens, Jochen}, title = {The Evolution of Song Lyrics: An NLP-Based Analysis of Popular Music in Germany from 1954 to 2022}, series = {Music \& Science}, volume = {8}, journal = {Music \& Science}, publisher = {Sage Publications}, issn = {2059-2043}, doi = {10.1177/20592043251331155}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-52618}, pages = {20}, year = {2025}, abstract = {Music is an indispensable cultural product, reflecting changes in social, psychological, and cultural contexts. This study analyzes the historical evolution of topics and conveyed affect in popular music lyrics in Germany from 1954 to 2022, using LDA-based topic modeling and transformer-based sentiment analysis. These results show that Love \& Relationships is the most referenced topic, with Dreams \& Longings prominent until the mid-1960s and Society \& Status rising from 2017. The sentiment analysis reveals a significant decline in positive sentiment since the mid-1960s, accompanied by increases in negative, ambiguous, and neutral sentiments. These trends may reflect broader societal changes, including shifts in cultural values, rising individualism, and increasing mental health issues. The study highlights the evolving nature of popular music and its reflection of social dynamics.}, subject = {Popmusik}, language = {en} } @article{HuberVerhoevenMeijeretal.2020, author = {Huber, Florian and Verhoeven, Stefan and Meijer, Christiaan and Spreeuw, Hanno and Castilla, Efra{\´i}n and Geng, Cunliang and van der Hooft, Justin J. J. and Rogers, Simon and Belloum, Adam and Diblen, Faruk and Spaaks, Jurriaan H.}, title = {matchms - processing and similarity evaluation of mass spectrometry data}, series = {Journal of Open Source Software}, volume = {5}, journal = {Journal of Open Source Software}, number = {52}, publisher = {Cold Spring Harbor Laboratory}, issn = {2475-9066}, doi = {10.21105/joss.02411}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34856}, pages = {2411}, year = {2020}, language = {en} } @article{HubervanderBurgvanderHooftetal.2021, author = {Huber, Florian and van der Burg, Sven and van der Hooft, Justin J. J. and Ridder, Lars}, title = {MS2DeepScore: a novel deep learning similarity measure to compare tandem mass spectra}, series = {Journal of Cheminformatics}, volume = {13}, journal = {Journal of Cheminformatics}, number = {1}, publisher = {Cold Spring Harbor Laboratory}, issn = {1758-2946}, doi = {10.1186/s13321-021-00558-4}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34847}, pages = {84}, year = {2021}, abstract = {Mass spectrometry data is one of the key sources of information in many workflows in medicine and across the life sciences. Mass fragmentation spectra are generally considered to be characteristic signatures of the chemical compound they originate from, yet the chemical structure itself usually cannot be easily deduced from the spectrum. Often, spectral similarity measures are used as a proxy for structural similarity but this approach is strongly limited by a generally poor correlation between both metrics. Here, we propose MS2DeepScore: a novel Siamese neural network to predict the structural similarity between two chemical structures solely based on their MS/MS fragmentation spectra. Using a cleaned dataset of > 100,000 mass spectra of about 15,000 unique known compounds, we trained MS2DeepScore to predict structural similarity scores for spectrum pairs with high accuracy. In addition, sampling different model varieties through Monte-Carlo Dropout is used to further improve the predictions and assess the model's prediction uncertainty. On 3600 spectra of 500 unseen compounds, MS2DeepScore is able to identify highly-reliable structural matches and to predict Tanimoto scores for pairs of molecules based on their fragment spectra with a root mean squared error of about 0.15. Furthermore, the prediction uncertainty estimate can be used to select a subset of predictions with a root mean squared error of about 0.1. Furthermore, we demonstrate that MS2DeepScore outperforms classical spectral similarity measures in retrieving chemically related compound pairs from large mass spectral datasets, thereby illustrating its potential for spectral library matching. Finally, MS2DeepScore can also be used to create chemically meaningful mass spectral embeddings that could be used to cluster large numbers of spectra. Added to the recently introduced unsupervised Spec2Vec metric, we believe that machine learning-supported mass spectral similarity measures have great potential for a range of metabolomics data processing pipelines.}, language = {en} } @article{HuberStrehleSchnaussetal.2015, author = {Huber, Florian and Strehle, Dan and Schnauß, J{\"o}rg and K{\"a}s, Josef}, title = {Formation of regularly spaced networks as a general feature of actin bundle condensation by entropic forces}, series = {New Journal of Physics}, volume = {17}, journal = {New Journal of Physics}, number = {4}, publisher = {IOP Publishing}, issn = {1367-2630}, doi = {10.1088/1367-2630/17/4/043029}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34833}, year = {2015}, language = {en} } @article{HuberSchnaussRoenickeetal.2013, author = {Huber, Florian and Schnauß, J{\"o}rg and R{\"o}nicke, S. and Rauch, P. and M{\"u}ller, K. and F{\"u}tterer, C. and K{\"a}s, Josef}, title = {Emergent complexity of the cytoskeleton: from single filaments to tissue}, series = {Advances in Physics}, volume = {62}, journal = {Advances in Physics}, number = {1}, publisher = {Taylor \& Francis}, issn = {1460-6976}, doi = {10.1080/00018732.2013.771509}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34812}, pages = {1 -- 112}, year = {2013}, abstract = {Despite their overwhelming complexity, living cells display a high degree of internal mechanical and functional organization which can largely be attributed to the intracellular biopolymer scaffold, the cytoskeleton. Being a very complex system far from thermodynamic equilibrium, the cytoskeleton's ability to organize is at the same time challenging and fascinating. The extensive amounts of frequently interacting cellular building blocks and their inherent multifunctionality permits highly adaptive behavior and obstructs a purely reductionist approach. Nevertheless (and despite the field's relative novelty), the physics approach has already proved to be extremely successful in revealing very fundamental concepts of cytoskeleton organization and behavior. This review aims at introducing the physics of the cytoskeleton ranging from single biopolymer filaments to multicellular organisms. Throughout this wide range of phenomena, the focus is set on the intertwined nature of the different physical scales (levels of complexity) that give rise to numerous emergent properties by means of self-organization or self-assembly.}, language = {en} } @article{HuberRidderVerhoevenetal.2021, author = {Huber, Florian and Ridder, Lars and Verhoeven, Stefan and Spaaks, Jurriaan H. and Diblen, Faruk and Rogers, Simon and van der Hooft, Justin J. J.}, title = {Spec2Vec: Improved mass spectral similarity scoring through learning of structural relationships}, series = {PLOS Computational Biology}, volume = {17}, journal = {PLOS Computational Biology}, number = {2}, publisher = {Cold Spring Harbor Laboratory}, issn = {1553-7358}, doi = {10.1371/journal.pcbi.1008724}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34687}, year = {2021}, abstract = {Spectral similarity is used as a proxy for structural similarity in many tandem mass spectrometry (MS/MS) based metabolomics analyses such as library matching and molecular networking. Although weaknesses in the relationship between spectral similarity scores and the true structural similarities have been described, little development of alternative scores has been undertaken. Here, we introduce Spec2Vec, a novel spectral similarity score inspired by a natural language processing algorithm-Word2Vec. Spec2Vec learns fragmental relationships within a large set of spectral data to derive abstract spectral embeddings that can be used to assess spectral similarities. Using data derived from GNPS MS/MS libraries including spectra for nearly 13,000 unique molecules, we show how Spec2Vec scores correlate better with structural similarity than cosine-based scores. We demonstrate the advantages of Spec2Vec in library matching and molecular networking. Spec2Vec is computationally more scalable allowing structural analogue searches in large databases within seconds.}, language = {en} } @unpublished{HuberPollmann2025, author = {Huber, Florian and Pollmann, Julian}, title = {Count your bits: more subtle similarity measures using larger radius count vectors}, publisher = {bioRXiv}, doi = {10.1101/2025.06.16.659994}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-54632}, pages = {29}, year = {2025}, abstract = {Quantifying molecular similarity is a cornerstone of cheminformatics, underpinning applications from virtual screening to chemical space visualization. A wide range of molecular fingerprints and similarity metrics, most notably Tanimoto scores, are employed, but their effectiveness is highly context-dependent. In this study, we systematically evaluate several 2D fingerprint types, including circular, path-based, and distance-encoded variants, using both binary and count representations. We highlight the consequences of fingerprint choice, vector folding, and similarity metric selection, revealing critical issues such as fingerprint duplication, mass dependent score biases, and high bit collision rates. Sparse and count-based fingerprints consistently outperform fixed-size binary vectors in preserving structural distinctions. Furthermore, we introduce percentile-based normalization, propose inverse-document-frequency (IDF) weighting, and benchmark all methods against graph-based MCES similarities. Our results offer practical guidance for selecting molecular similarity measures, emphasizing the need for conscious, task-aware fingerprinting choices in large-scale chemical analyses.}, subject = {Computational chemistry}, language = {en} } @article{HimmeleinvonBergPoerschmannetal.2025, author = {Himmelein, Hendrik and von Berg, Markus and P{\"o}rschmann, Christoph and Steffens, Jochen}, title = {Influence of mental effort on sound evaluations in virtual and real experimental environments}, series = {Frontiers in Virtual Reality}, volume = {6}, journal = {Frontiers in Virtual Reality}, publisher = {Frontiers Media SA}, issn = {2673-4192}, doi = {10.3389/frvir.2025.1672595}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-57985}, year = {2025}, abstract = {Psychoacoustic research increasingly relies on virtual reality (VR) to account for the complexity of acoustic scenarios and enhance the ecological validity of laboratory findings. However, recent studies suggest that virtual environments can alter mental effort compared to real-world settings, for example, through increased perceptual complexity which in turn may affect auditory perception.This could bias experimental outcomes and compromise the ecological validity of studies conducted in VR. To investigate this, a 2 × 2 between-subjects experiment was conducted to assess whether VR environments increase mental effort and thereby influence auditory perception. A real office environment was visually reconstructed in Unity and presented to the participants via a head-mounted display (HMD) and compared to its real counterpart. Participants in both environments were asked to retrospectively rate the loudness and unpleasantness of dynamically rendered binaural office noise scenarios presented via headphones and to report perceived sound sources. Moreover, participants were divided into two groups to induce different levels of mental effort. One group was asked to listen only to the sounds, while the other performed the Stroop Color-Word interference test in parallel. The results show no significant difference in the overall induced mental effort between environment conditions. Furthermore, performing the Stroop test had an effect on loudness and unpleasantness that was mediated by subjective effort. The results also suggest that auditory jugment depend primarily on individual sound properties, regardless of the visual environment.}, subject = {Psychoakustik}, language = {en} } @inproceedings{HerderNeiderKinuwaki2007, author = {Herder, Jens and Neider, Christian and Kinuwaki, Shinichi}, title = {HDR-based lighting estimation for virtual studio (TV) environments}, series = {10th International Conference on Human and Computer}, booktitle = {10th International Conference on Human and Computer}, address = {D{\"u}sseldorf, Aizu-Wakamatsu}, doi = {10.20385/opus4-1666}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-16665}, pages = {111 -- 117}, year = {2007}, abstract = {Two high dynamic range HDR environments maps based on video streams from fish-eye lens cameras are used for generating virtual lights in a virtual set renderer. The task of realistic virtual light setup of scenes using captured environment maps might be eased as well as visual quality improves. We discuss the light setting problem for virtual studio tv productions which have mixed scenes of real objects, actors, virtual objects and virtual backgrounds. Benefits of hdr interactive light control are that the real light in the studio does not have to be remodeled and the artistic impression by using the light in the studio is also captured. An analysis of system requirements identifies technical challenges. We discuss the properties of a prototype system including test production.}, language = {en} } @inproceedings{HerderLadwigVermeegenetal.2018, author = {Herder, Jens and Ladwig, Philipp and Vermeegen, Kai and Hergert, Dennis and Busch, Florian and Klever, Kevin and Holthausen, Sebastian and Ryskeldiev, Bektur}, title = {Mixed Reality Experience - How to Use a Virtual (TV) Studio for Demonstration of Virtual Reality Applications}, series = {GRAPP 2018 - 13th International Conference on Computer Graphics Theory and Applications}, booktitle = {GRAPP 2018 - 13th International Conference on Computer Graphics Theory and Applications}, publisher = {INSTICC}, address = {Setubal - Portugal}, isbn = {978-989-758-287-5}, doi = {10.5220/0006637502810287}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-15823}, pages = {281 -- 287}, year = {2018}, abstract = {The article discusses the question of "How to convey the experience in a virtual environment to third parties?" and explains the different technical implementations which can be used for live streaming and recording of a mixed reality experience. The real-world applications of our approach include education, entertainment, e- sports, tutorials, and cinematic trailers, which can benefit from our research by finding a suitable solution for their needs. We explain and outline our Mixed Reality systems as well as discuss the experience of recorded demonstrations of different VR applications, including the need for calibrated camera lens parameters based on realtime encoder values.}, language = {en} } @inproceedings{HerderBuentigDaemenetal.2014, author = {Herder, Jens and B{\"u}ntig, Fabian and Daemen, Jeff and Lang, Jaroslaw and L{\"u}ck, Florian and S{\"a}ger, Mitja and S{\"o}rensen, Roluf and Hermanni, Markus and Vonolfen, Wolfgang}, title = {Subtle Animations using Talent Tracking in a Virtual (TV) Studio}, series = {17th International Conference on Human and Computer}, booktitle = {17th International Conference on Human and Computer}, address = {Hamamatsu/Aizu-Wakamatsu/Duesseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-16009}, pages = {6}, year = {2014}, abstract = {Markerless talent tracking is widely used for interactions and animations within virtual environments. In a virtual (tv) studio talents could be overburden by interaction tasks because camera and text require extensive attention. We take a look into animations and inter- actions within a studio, which do not require any special attention or learning. We show the generation of an artificial shadow from a talent, which ease the keying process, where separation of real shadows from the background is a difficult task. We also demonstrate animations of footsteps and dust. Furthermore, capturing talents' height can also be used to adjust the parameters of elements in the virtual environment, like the position and scaling of a virtual display. In addition to the talents, a rigid body was tracked as placeholder for graphics, easing the interaction tasks for a talent. Two test productions show the possibilities, which subtle animations offer. In the second production, the rendering was improved (shadows, filtering, normal maps, ...) and instead of using the rigid body to move an object (a flag), the animation was only controlled by the hand's position.}, language = {en} } @inproceedings{Herder1997, author = {Herder, Jens}, title = {Cooperative Tools for Teaching : an Impact of a Network Environment}, series = {Annual Report of the Information Systems and Technology Center, University of Aizu, October 1997}, booktitle = {Annual Report of the Information Systems and Technology Center, University of Aizu, October 1997}, address = {Aizu}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-827}, pages = {3 -- 8}, year = {1997}, abstract = {Education at the University of Aizu is focussed upon computer science. Besides being the subject matter of many courses, however, the computer also plays a vital role in the educational process itself, both in the distribution of instructional media, and in providing students with valuable practical experience. All students have unlimited access (24-hours-a-day) to individual networked workstations, most of which are multimedia-capable (even video capture is possible in two exercise rooms). Without software and content tailored for computer-aided instruction, the hardware becomes an expensive decoration. In any case, there is a need to better educate the instructors and students in the use of the equipment. In the interest of facilitating effective, collaborative use of network-based computers in teaching, this article explores the impact that a network environment can have on such activities. First, as a general overview, and to examine the motivation for the use of a network environment in teaching, this article reviews a range of different styles of collaboration. Then the article shows what kind of tools are available for use, within the context of what has come to be called Computer-Supported Cooperative Work (CSCW).}, language = {en} } @inproceedings{Herder1998, author = {Herder, Jens}, title = {Sound Spatialization Framework: An Audio Toolkit for Virtual Environments}, series = {First International Conference on Human and Computer, Aizu-Wakamatsu, September 1998}, booktitle = {First International Conference on Human and Computer, Aizu-Wakamatsu, September 1998}, address = {Aizu}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-788}, pages = {6}, year = {1998}, abstract = {The Sound Spatialization Framework is a C++ toolkit and development environment for providing advanced sound spatialization for virtual reality and multimedia applications. The Sound Spatialization Framework provides many powerful display and user-interface features not found in other sound spatialization software packages. It provides facilities that go beyond simple sound source spatialization: visualization and editing of the soundscape, multiple sinks, clustering of sound sources, monitoring and controlling resource management, support for various spatialization backends, and classes for MIDI animation and handling.}, language = {en} } @article{HeninPetitRohwetteretal.2011, author = {Henin, Stefano and Petit, Yannick and Rohwetter, Philipp and Stelmaszczyk, Kamil and Hao, Zuoqiang and Nakaema, Walter Morinobu and Vogel, Andreas and Pohl, Tobias and Schneider, Friedhelm and Kasparian, J{\´e}r{\^o}me and Weber, Konradin and W{\"o}ste, Ludger and Wolf, Jean-Pierre}, title = {Field measurements suggest the mechanism of laser-assisted water condensation}, series = {Nature Communications}, volume = {2}, journal = {Nature Communications}, number = {1}, publisher = {Springer Nature}, issn = {2041-1723}, doi = {10.1038/ncomms1462}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-52439}, year = {2011}, abstract = {Because of the potential impact on agriculture and other key human activities, efforts have been dedicated to the local control of precipitation. The most common approach consists of dispersing small particles of dry ice, silver iodide, or other salts in the atmosphere. Here we show, using field experiments conducted under various atmospheric conditions, that laser filaments can induce water condensation and fast droplet growth up to several μm in diameter in the atmosphere as soon as the relative humidity exceeds 70\%. We propose that this effect relies mainly on photochemical formation of p.p.m.-range concentrations of hygroscopic Hno3, allowing efficient binary Hno3-H2o condensation in the laser filaments. Thermodynamic, as well as kinetic, numerical modelling based on this scenario semiquantitatively reproduces the experimental results, suggesting that particle stabilization by Hno3 has a substantial role in the laser-induced condensation.}, subject = {Kondensation}, language = {en} } @article{HaberfehlnervandeVenvanderBurgetal.2023, author = {Haberfehlner, Helga and van de Ven, Shankara S. and van der Burg, Sven A. and Huber, Florian and Georgievska, Sonja and Aleo, Ignazio and Harlaar, Jaap and Bonouvri{\´e}, Laura A. and van der Krogt, Marjolein M. and Buizer, Annemieke I.}, title = {Towards automated video-based assessment of dystonia in dyskinetic cerebral palsy: A novel approach using markerless motion tracking and machine learning}, series = {Frontiers in Robotics and AI}, volume = {10}, journal = {Frontiers in Robotics and AI}, publisher = {Frontiers}, issn = {2296-9144}, doi = {10.3389/frobt.2023.1108114}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40592}, year = {2023}, language = {en} } @inproceedings{GroteRammSchoenigSchwarzboezletal.2024, author = {Grote-Ramm, Wolfgang and Sch{\"o}nig, Felix and Schwarzb{\"o}zl, Peter and Drexelius, Maximilian and Maldonado Quinto, Daniel and Binder, Matthias}, title = {Model Predictive Control and Service Life Monitoring for Molten Salt Solar Power Towers}, series = {29th SolarPACES Conference, Sydney}, booktitle = {29th SolarPACES Conference, Sydney}, publisher = {SolarPACES}, doi = {10.52825/solarpaces.v2i.774}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-43233}, year = {2024}, abstract = {A two-component system for control and monitoring of solar power towers with molten salt receivers is proposed. The control component consists of a model predictive control applica-tion (MPC) with a flexible objective function and on-line tunable weights, which runs on a In-dustrial PC and uses a reduced order dynamic model of the receiver's thermal and flow dy-namics. The second component consists of a service-life monitoring unit, which estimates the service-life consumption of the absorber tubes depending on the current mode of operation based on thermal stresses and creep fatigue in the high temperature regime. The calculation of stresses is done based on a detailed finite element study, in which a digital twin of the re-ceiver was developed. By parallelising the model solver, the estimation of service-life con-sumption became capable of real-time operation. The system has been implemented at a test facility in J{\"u}lich, Germany, and awaits field experiments. In this paper, the modeling and archi-tecture are presented along simulation results, which were validated on a hardware-in-the-loop test bench. The MPC showed good disturbance rejection while respecting process variable constraints during the simulation studies.}, language = {en} } @article{GreuelWatermannLohmannetal.2025, author = {Greuel, Marc and Watermann, Clara Maria and Lohmann, Heiko and Kaluza, Stefan and Apfel, Ulf-Peter and Zeidler-Fandrich, Barbara}, title = {The conversion of ethanol over 3d-metal saponite-like smectites}, series = {Materials Advances}, journal = {Materials Advances}, number = {6}, publisher = {Royal Society of Chemistry}, issn = {2633-5409}, doi = {10.1039/d4ma01036a}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-52973}, pages = {2885 -- 2898}, year = {2025}, abstract = {The replacement of fossil fuel processes with renewable pathways is critical to circumvent climate change and environmental risks. A process of interest is the production of 1,3-butadiene (BD), which is primarily derived as a by-product of naphtha steam cracking. A sustainable alternative path involves converting renewable ethanol to BD via the Lebedev process, which requires a catalyst with balanced redox, acidic, and basic sites. Due to the necessity of a multifunctional catalyst, existing materials for this reaction are either comprised of catalyst mixtures or supported catalysts. In this study, we introduce a bulk material, saponite, containing M-O-Si sites, which combine required catalytic sites for the ethanol to BD (ETB) reaction in one material. The product composition in ethanol conversion were strongly dependent on the type of 3d-metal used, while no conclusive correlation between surface properties, conversion, and product composition was observed. Herein, using V-Sap*, we achieved an ethene productivity of 448 gethene kgcat-1 h-1 (74\%) at 573.15 K. High acetaldehyde productivity was maintained with Cu-Sap* (466 gAcA kgcat-1 h-1, 49\%) at 573.15 K and Zn-Sap (528 gAcA kgcat-1 h-1, 55\%) at 723.15 K. Mg-Sap primarily produced ethene but also yielded 10 gBD kgcat-1 h-1 BD at 723.15 K. Higher BD outputs were observed with Ni-Sap (31 gBD kgcat-1 h-1 at 523.15 K) and Mn-Sap* (51 gBD kgcat-1 h-1 at 723.15 K). This underscores the potential of saponite-based materials for flexible product outputs in ethanol conversion, influenced by the choice of integrated 3d-metal.}, subject = {Butadien}, language = {en} } @techreport{GreilSchwarzStein2018, author = {Greil, Stefan and Schwarz, Christian and Stein, Stefan}, title = {Fairness and the Arm's Length Principle in a Digital Economy}, number = {42}, address = {D{\"u}sseldorf}, issn = {2365-3361}, doi = {10.20385/2365-3361/2018.42}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-12029}, year = {2018}, abstract = {The OECD Base Erosion Profit Shifting (BEPS) Initiative as well as the current fairness oriented public discussion regarding the taxation of digital business models highlight the importance and complexity of the arm's length principle. In a theoretical model of an internationally fragmented digital good's production process, we show that fairness considerations of tax authorities (namely inequity aversion) can result in a falling apart between a perceived "fair" and arm's length distribution of profits across tax jurisdictions. Our model predicts that a multinational firm follows the fundamental paradigm of international taxation, i.e. the arm's length principle, to properly incentivize internal agents involved in the production of a digital good. However, with inequity averse tax authorities, we find that tax authorities "prefer" a more equal distribution of profits compared to the arm's length allocation. From a multinational firm's perspective, inequity aversion among tax authorities dampens the strategic effect to - in accordance with arm's length principle - shift profits to low tax countries.}, language = {en} } @techreport{GreilSchwarzStein2018, author = {Greil, Stefan and Schwarz, Christian and Stein, Stefan}, title = {Perceived Fairness in the Taxation of a Digital Business Model}, editor = {Kalmring, Dirk}, address = {D{\"u}sseldorf}, issn = {2365-3361}, doi = {10.20385/2365-3361/2018.47}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-15759}, pages = {27}, year = {2018}, abstract = {The "fair" taxation of digital business models is challenging. One of the key aspects - both policy makers and the public opinion consider as most pressuring - is the determination of intragroup transfer prices for intangibles used in digital business models. In this paper, we address the issue of a "perceived fair" taxation of the digital economy in the light of the arm's length principle based on a survey with transfer pricing experts. The aim of the survey is not to estimate arm's length profit allocations but rather to elicit fairness considerations in different transfer pricing related scenarios. In a digital economy framework where arm's length profits are distributed extremely inequitably, subjects perceive this distribution of profits as most unfair compared to more balanced scenarios. Consequently, subjects propose a "fair" distribution of profits that substantially differs from the exogenously given arm's length allocation. In scenarios with a more balanced arm's length allocation of profits, we find that the perceived fairness for the expert groups increases while a control group of business students is almost not influenced by the arm's length allocation of profits.}, language = {en} } @article{GlembinAdamDeidertetal.2012, author = {Glembin, Jens and Adam, Mario and Deidert, J{\"o}rn and Jagnow, Kati and Rockendorf, Gunter and Wirth, Hans Peter}, title = {Simulation and Evaluation of Different Boiler Implementations and Configurations in Solar Thermal Combi Systems}, series = {Energy Procedia}, volume = {30}, journal = {Energy Procedia}, publisher = {Elsevier}, doi = {10.1016/j.egypro.2012.11.070}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-27350}, pages = {601 -- 610}, year = {2012}, language = {en} } @article{GirodLohmannSchlueteretal.2020, author = {Girod, Kai and Lohmann, Heiko and Schl{\"u}ter, Stefan and Kaluza, Stefan}, title = {Methanol Synthesis with Steel-Mill Gases: Simulation and Practical Testing of Selected Gas Utilization Scenarios}, series = {Processes}, volume = {8}, journal = {Processes}, number = {12}, publisher = {MDPI}, doi = {10.3390/pr8121673}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-26928}, year = {2020}, language = {en} } @article{GirodLohmannKaluza2021, author = {Girod, Kai and Lohmann, Heiko and Kaluza, Stefan}, title = {Methanol Synthesis with Steel Mill Gases: Performance Investigations in an On-Site Technical Center}, series = {Chemie Ingenieur Technik}, volume = {93}, journal = {Chemie Ingenieur Technik}, number = {5}, publisher = {Wiley}, organization = {Wiley}, issn = {1522-2640}, doi = {10.1002/cite.202000230}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34409}, pages = {850 -- 855}, year = {2021}, language = {en} } @article{GeneralPoehlerSihleretal.2014, author = {General, S. and P{\"o}hler, D. and Sihler, H. and Bobrowski, N. and Frieß, U. and Zielcke, J. and Horbanski, M. and Shepson, P. B. and Stirm, B. H. and Simpson, W. R. and Weber, Konradin and Fischer, C. and Platt, U.}, title = {The Heidelberg Airborne Imaging DOAS Instrument (HAIDI) - a novel imaging DOAS device for 2-D and 3-D imaging of trace gases and aerosols}, series = {Atmospheric Measurement Techniques}, volume = {7}, journal = {Atmospheric Measurement Techniques}, number = {10}, publisher = {Copernicus}, issn = {1867-8548}, doi = {10.5194/amt-7-3459-2014}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-50179}, pages = {3459 -- 3485}, year = {2014}, abstract = {Abstract. Many relevant processes in tropospheric chemistry take place on rather small scales (e.g., tens to hundreds of meters) but often influence areas of several square kilometer. Thus, measurements of the involved trace gases with high spatial resolution are of great scientific interest. In order to identify individual sources and sinks and ultimately to improve chemical transport models, we developed a new airborne instrument, which is based on the well established Differential Optical Absorption Spectroscopy (DOAS) method. The Heidelberg Airborne Imaging DOAS Instrument (HAIDI) is a passive imaging DOAS spectrometer, which is capable of recording horizontal and vertical trace gas distributions with a resolution of better than 100 m. Observable species include NO2, HCHO, C2H2O2, H2O, O3, O4, SO2, IO, OClO and BrO. Here we give a technical description of the instrument including its custom-built spectrographs and CCD detectors. Also first results from measurements with the new instrument are presented. These comprise spatial resolved SO2 and BrO in volcanic plumes, mapped at Mt. Etna (Sicily, Italy), NO2 emissions in the metropolitan area of Indianapolis (Indiana, USA) as well as BrO and NO2 distributions measured during arctic springtime in context of the BRomine, Ozone, and Mercury EXperiment (BROMEX) campaign, which was performed 2012 in Barrow (Alaska, USA).}, language = {en} } @inproceedings{GeigerAliDilchert2025, author = {Geiger, Christian and Ali, Soren and Dilchert, Philipp}, title = {The BildKlangPoet - a Framework for Designing Mixed Reality Painting Experiences Using Generative AI}, series = {Proceedings of the 22nd International Conference on Culture and Computer Science: Remixing Analog and Digital (KUI '25), September 25, 26, 2025, Berlin, Germany}, booktitle = {Proceedings of the 22nd International Conference on Culture and Computer Science: Remixing Analog and Digital (KUI '25), September 25, 26, 2025, Berlin, Germany}, editor = {Olivero, Lucas Fabian and Stark, Maja and Sch{\"u}rrer, Dagmar and Israel, Johann Habakuk}, publisher = {ACM}, address = {New York, NY, USA}, isbn = {979-8-4007-1478-8/2025/09}, doi = {10.1145/3769526.3769653}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60086}, pages = {1 -- 4}, year = {2025}, language = {en} } @article{GeerkensSieberichsBraunetal.2024, author = {Geerkens, Simon and Sieberichs, Christian and Braun, Alexander and Waschulzik, Thomas}, title = {QI²: an interactive tool for data quality assurance}, series = {AI and Ethics}, volume = {4}, journal = {AI and Ethics}, publisher = {Springer Nature}, issn = {2730-5961}, doi = {10.1007/s43681-023-00390-6}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-42945}, pages = {141 -- 149}, year = {2024}, abstract = {The importance of high data quality is increasing with the growing impact and distribution of ML systems and big data. Also, the planned AI Act from the European commission defines challenging legal requirements for data quality especially for the market introduction of safety relevant ML systems. In this paper, we introduce a novel approach that supports the data quality assurance process of multiple data quality aspects. This approach enables the verification of quantitative data quality requirements. The concept and benefits are introduced and explained on small example data sets. How the method is applied is demonstrated on the well-known MNIST data set based an handwritten digits.}, language = {en} } @article{GaudryHuberNothiasetal.2022, author = {Gaudry, Arnaud and Huber, Florian and Nothias, Louis-F{\´e}lix and Cretton, Sylvian and Kaiser, Marcel and Wolfender, Jean-Luc and Allard, Pierre-Marie}, title = {MEMO: Mass Spectrometry-Based Sample Vectorization to Explore Chemodiverse Datasets}, series = {Frontiers in Bioinformatics}, volume = {2}, journal = {Frontiers in Bioinformatics}, publisher = {Frontiers}, issn = {2673-7647}, doi = {10.3389/fbinf.2022.842964}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-54660}, pages = {13}, year = {2022}, abstract = {In natural products research, chemodiverse extracts coming from multiple organisms are explored for novel bioactive molecules, sometimes over extended periods. Samples are usually analyzed by liquid chromatography coupled with fragmentation mass spectrometry to acquire informative mass spectral ensembles. Such data is then exploited to establish relationships among analytes or samples (e.g., via molecular networking) and annotate metabolites. However, the comparison of samples profiled in different batches is challenging with current metabolomics methods since the experimental variation—changes in chromatographical or mass spectrometric conditions - hinders the direct comparison of the profiled samples. Here we introduce MEMO—MS2 BasEd SaMple VectOrization—a method allowing to cluster large amounts of chemodiverse samples based on their LC-MS/MS profiles in a retention time agnostic manner. This method is particularly suited for heterogeneous and chemodiverse sample sets. MEMO demonstrated similar clustering performance as state-of-the-art metrics considering fragmentation spectra. More importantly, such performance was achieved without the requirement of a prior feature alignment step and in a significantly shorter computational time. MEMO thus allows the comparison of vast ensembles of samples, even when analyzed over long periods of time, and on different chromatographic or mass spectrometry platforms. This new addition to the computational metabolomics toolbox should drastically expand the scope of large-scale comparative analysis.}, subject = {Computational chemistry}, language = {en} } @article{FuHeeminkLuetal.2016, author = {Fu, Guangliang and Heemink, Arnold and Lu, Sha and Segers, Arjo and Weber, Konradin and Lin, Hai-Xiang}, title = {Model-based aviation advice on distal volcanic ash clouds byassimilating aircraft in situ measurements}, series = {Atmospheric Chemistry and Physics}, volume = {16}, journal = {Atmospheric Chemistry and Physics}, number = {14}, publisher = {Copernicus}, issn = {1680-7324}, doi = {10.5194/acp-16-9189-2016}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-50058}, pages = {9189 -- 9200}, year = {2016}, abstract = {Abstract. The forecast accuracy of distal volcanic ash clouds is important for providing valid aviation advice during volcanic ash eruption. However, because the distal part of volcanic ash plume is far from the volcano, the influence of eruption information on this part becomes rather indirect and uncertain, resulting in inaccurate volcanic ash forecasts in these distal areas. In our approach, we use real-life aircraft in situ observations, measured in the northwestern part of Germany during the 2010 Eyjafjallaj{\"o}kull eruption, in an ensemble-based data assimilation system combined with a volcanic ash transport model to investigate the potential improvement on the forecast accuracy with regard to the distal volcanic ash plume. We show that the error of the analyzed volcanic ash state can be significantly reduced through assimilating real-life in situ measurements. After a continuous assimilation, it is shown that the aviation advice for Germany, the Netherlands and Luxembourg can be significantly improved. We suggest that with suitable aircrafts measuring once per day across the distal volcanic ash plume, the description and prediction of volcanic ash clouds in these areas can be greatly improved.}, language = {en} }