@inproceedings{Frosch2023, author = {Frosch, Katharina}, title = {Scan to Learn: A Lightweight Approach for Informal Mobile Micro-Learning at the Workplace}, series = {Konferenz: IARIA The Fifteenth International Conference on Mobile, Hybrid, and On-line Learning; Venice (Italy)}, booktitle = {Konferenz: IARIA The Fifteenth International Conference on Mobile, Hybrid, and On-line Learning; Venice (Italy)}, publisher = {IARIA}, isbn = {978-1-68558-081-0}, pages = {53 -- 61}, year = {2023}, abstract = {Informal learning at the workplace is a crucial ingredient in updating and upskilling today's workforce, but in many jobs, informal learning opportunities are scarce. Bite-sized learning via mobile devices (Mobile Micro-Learning, MML) can be a powerful means to enhance informal work-related learning also in such learning-deprived fields. Based on good practices of recent MML implementations, a lightweight approach is developed. It involves an instructional blueprint and an open-source, low-threshold technology for MML, and meets the specific needs of workers in learning-deprived fields. The main idea is a scan-to-learn system where Quick Response (QR) codes are attached to physical objects in the work environment. Workers can scan the QR codes to learn and are directed to short, interactive learning nuggets. For evaluation, a proof-of-concept is provided.}, language = {en} } @inproceedings{WeberVeitJohannsen2020, author = {Weber, Kristin and Veit, David and Johannsen, Andreas}, title = {Anforderungen an die IT-Dokumentation aus Sicht von Informationssicherheit und Datenschutz}, series = {Konferenz: Angewandte Forschung in der Wirtschaftsinformatik (AKWI), Heide, 2020/ Konferenzband: Angewandte Forschung in der Wirtschaftsinformatik 2020: Tagungsband zur 33. AKWI-Jahrestagung am 14.09.2020 ausgerichtet von der Hochschule Karlsruhe - Wirtschaft und Technik}, booktitle = {Konferenz: Angewandte Forschung in der Wirtschaftsinformatik (AKWI), Heide, 2020/ Konferenzband: Angewandte Forschung in der Wirtschaftsinformatik 2020: Tagungsband zur 33. AKWI-Jahrestagung am 14.09.2020 ausgerichtet von der Hochschule Karlsruhe - Wirtschaft und Technik}, editor = {Wildau, Technische Hochschule}, publisher = {mana-Buch}, address = {Heide}, isbn = {978-3-944330-66-2}, pages = {147}, year = {2020}, language = {de} } @article{JohannsenKant2020, author = {Johannsen, Andreas and Kant, Daniel}, title = {IT-Governance, Risiko- und Compliance-Management (IT‑GRC) - Ein Kompetenz-orientierter Ansatz f{\"u}r KMU}, series = {HMD Praxis der Wirtschaftsinformatik}, journal = {HMD Praxis der Wirtschaftsinformatik}, publisher = {Springer Vieweg}, address = {Wiesbaden}, doi = {10.1365/s40702-020-00625-8}, year = {2020}, language = {de} } @inproceedings{Levina2021, author = {Levina, Olga}, title = {Transparency of Data Origin and Business Value as Factors for the Assessment of Opportunities and Risks of Machine Learning- based Systems}, series = {AI4EU Workshop: The Culture of Trustworthy AI. Public debate, education, practical learning, Venice, 2021}, booktitle = {AI4EU Workshop: The Culture of Trustworthy AI. Public debate, education, practical learning, Venice, 2021}, year = {2021}, language = {en} } @inproceedings{HildebrandtAltschaffelLamshoeftetal.2020, author = {Hildebrandt, Mario and Altschaffel, Robert and Lamsh{\"o}ft, Kevin and Lange, Mathias and Szemkus, Martin and Neubert, Tom and Vielhauer, Claus and Ding, Yongjian and Dittmann, Jana}, title = {Threat Analysis of Steganographic and Covert Communication in Nuclear I\&C Systems}, series = {Konferenz: International Conference on Nuclear Security: Sustaining and Strengthening Efforts (ICONS), Vienna, Austria, 2020/ Konferenzband: International Conference on Nuclear Security: Sustaining and Strengthening Efforts}, booktitle = {Konferenz: International Conference on Nuclear Security: Sustaining and Strengthening Efforts (ICONS), Vienna, Austria, 2020/ Konferenzband: International Conference on Nuclear Security: Sustaining and Strengthening Efforts}, publisher = {IAEA}, address = {Vienna, Austria}, pages = {14}, year = {2020}, abstract = {Steganographic and covert communication is increasingly used for hiding attacks. Often information hiding is used by attackers in advanced persistent threats in order to operate without being noticed. Attackers might use it to hide data exfiltration or control channels for persistent malware. The paper analyzes potential threats to operational technology by investigating different communication protocols towards their suitability as cover channels. Using a generalized network architecture model and the communication flows of nuclear power plants, the attack potential using information hiding is exemplary assessed. An example for a supply chain attack for command injection is given on the foundation of the OPC UA protocol and an off-theshelf programmable logic controller. Subsequently, recommendations for a strategic and operational preparation for operators towards the prevention and detection of information hiding attacks are derived.}, language = {en} } @article{KoldeweijKantHarthetal.2021, author = {Koldeweij, Robin B. J. and Kant, Pallav and Harth, Kirsten and Ruiter, Rielle de and Gelderblom, Hanneke and Snoeijer, Jacco H. and Lohse, Detlef and Limbeek, Michiel A. J. van}, title = {Initial solidification dynamics of spreading droplets}, series = {Physical Review Fluids}, journal = {Physical Review Fluids}, number = {12}, publisher = {American Physical Society}, issn = {2469-990X}, doi = {10.1103/PhysRevFluids.6.L121601}, year = {2021}, abstract = {When a droplet is brought in contact with an undercooled surface, it wets the substrate and solidifies at the same time. The interplay between the phase transition effects and the contact-line motion, leading to its arrest, remains poorly understood. Here we reveal the early solidification patterns and dynamics of spreading hexadecane droplets. Total internal reflection imaging is employed to temporally and spatially resolve the early solidification behavior. With this, we determine the conditions leading to the contact-line arrest. We quantify the overall nucleation behavior, i.e., the nucleation rate and the crystal growth speed and show its sensitivity to the applied undercooling of the substrate. We also show that for strong enough undercooling it is the rapid growth of the crystals which determines the eventual arrest of the spreading contact line. By combining the Johnson-Mehl-Avrami-Kolmogorov nucleation theory and scaling relations for the spreading, we calculate the temporal evolution of the solid area fraction, which is in good agreement with our observations.}, language = {en} } @article{StannariusHarth2023, author = {Stannarius, Ralf and Harth, Kirsten}, title = {The structure of disintegrating defect clusters in smectic C freely suspended films}, series = {Soft Matter}, journal = {Soft Matter}, number = {19}, publisher = {Royal Society of Chemistry}, doi = {https://doi.org/10.1039/d3sm00808h}, pages = {6109 -- 6115}, year = {2023}, abstract = {Disclinations or disclination clusters in smectic C freely suspended films with topological charges larger than one are unstable. They disintegrate, preferably in a spatially symmetric fashion, into single defects with individual charges of +1, which is the smallest positive topological charge allowed in polar vector fields. While the opposite process of defect annihilation is well-defined by the initial defect positions, disintegration starts from a singular state and the following scenario including the emerging regular defect patterns must be selected by specific mechanisms. We analyze experimental data and compare them with a simple model where the defect clusters adiabatically pass quasi-equilibrium solutions in one-constant approximation. It is found that the defects arrange in geometrical patterns that correspond very closely to superimposed singular defect solutions, without additional director distortions. The patterns expand by affine transformations where all distances between individual defects scale with the same time-dependent scaling factor proportional to the square-root of time.}, language = {en} } @article{KloppTrittelHarthetal.2023, author = {Klopp, Christoph and Trittel, Torsten and Harth, Kirsten and Stannarius, Ralf}, title = {Coalescence of biphasic droplets embedded in free standing smectic A films}, series = {Soft Matter}, volume = {20}, journal = {Soft Matter}, number = {5}, publisher = {Royal Society of Chemistry}, issn = {1744-683X}, doi = {10.1039/d3sm01549a}, pages = {1036 -- 1046}, year = {2023}, abstract = {We investigate micrometer-sized flat droplets consisting of an isotropic core surrounded by a nematic rim in freely suspended smectic A liquid-crystal films. In contrast to purely isotropic droplets which are characterized by a sharp edge and no long-range interactions, the nematic fringe introduces a continuous film thickness change resulting in long-range mutual attraction of droplets. The coalescence scenario is divided in two phases. The first one consists in the fusion of the nematic regions. The second phase involves the dissolution of a thin nematic film between the two isotropic cores. The latter has many similarities with the rupture of thin liquid films between droplets coalescing in an immiscible viscous liquid. Coalescence of biphasic droplets in free-standing smectic films is controlled in part by the rupture of a thin nematic membrane separating the isotropic droplet cores.}, language = {en} } @inproceedings{JohannsenMaurerStockhausen2022, author = {Johannsen, Andreas and Maurer, Robert and Stockhausen, Pablo}, title = {Konzeption eines Machine-Learning-Verfahrens zum L{\"o}sen von Green Vehicle Routing Problemen.}, series = {Konferenz: Jahrestagung des Arbeitskreises Wirtschaftsinformatik an Hochschulen f{\"u}r Angewandte Wissenschaften im deutschsprachigen Raum (AKWI), Berlin, 2022/ Konferenzband: Angewandte Forschung in der Wirtschaftsinformatik 2022: Tagungsband zur 35. Jahrestagung des Arbeitskreises Wirtschaftsinformatik an Hochschulen f{\"u}r Angewandte Wissenschaften im deutschsprachigen Raum (AKWI) vom 11.09. bis 13.09.2022, ausgerichtet von der Hochschule f{\"u}r Technik und Wirtschaft Berlin (HTW Berlin) und der Hochschule f{\"u}r Wirtschaft und Recht Berlin (HWR Berlin)}, booktitle = {Konferenz: Jahrestagung des Arbeitskreises Wirtschaftsinformatik an Hochschulen f{\"u}r Angewandte Wissenschaften im deutschsprachigen Raum (AKWI), Berlin, 2022/ Konferenzband: Angewandte Forschung in der Wirtschaftsinformatik 2022: Tagungsband zur 35. Jahrestagung des Arbeitskreises Wirtschaftsinformatik an Hochschulen f{\"u}r Angewandte Wissenschaften im deutschsprachigen Raum (AKWI) vom 11.09. bis 13.09.2022, ausgerichtet von der Hochschule f{\"u}r Technik und Wirtschaft Berlin (HTW Berlin) und der Hochschule f{\"u}r Wirtschaft und Recht Berlin (HWR Berlin)}, editor = {Wolf, Martin}, publisher = {GITO}, address = {Berlin}, isbn = {978-3-95545-409-8}, doi = {10.30844/AKWI_2022_17}, pages = {398}, year = {2022}, language = {de} } @inproceedings{StockhausenJohannsenMaurer2023, author = {Stockhausen, Pablo and Johannsen, Andreas and Maurer, Robert}, title = {Konzeption eines Machine-Learnings-Verfahrens zum L{\"o}sen von Green Vehicle Routing Problemen}, series = {Konferenz: Informatik 2022, Lecture Notes in Informatics (LNI), Bonn, 2022/ Konferenzband: Informatik 2022 Fachtagung vom 26.-30. September 2022, Hamburg/ Band: P-326}, booktitle = {Konferenz: Informatik 2022, Lecture Notes in Informatics (LNI), Bonn, 2022/ Konferenzband: Informatik 2022 Fachtagung vom 26.-30. September 2022, Hamburg/ Band: P-326}, editor = {Krupka, Daniel and Federrath, Hannes and Demmler, Daniel}, publisher = {Gesellschaft f{\"u}r Informatik}, address = {Bonn}, isbn = {978-3-88579-720-3}, doi = {10.18420/inf2022_75}, pages = {885 -- 897}, year = {2023}, language = {de} } @incollection{JohannsenEifertDobkowiczetal.2019, author = {Johannsen, Andreas and Eifert, Felix Friedrich and Dobkowicz, Matthias and Duhn, Melanie}, title = {Ein Ansatz zur Messung von Cloud-Kooperationsf{\"a}higkeit im IT-Mittelstand}, series = {Angewandte Forschung in der Wirtschaftsinformatik 2019}, booktitle = {Angewandte Forschung in der Wirtschaftsinformatik 2019}, editor = {Wolf, Martin R.}, publisher = {mana-Buch}, address = {Heide}, isbn = {978-3-944330-62-4}, publisher = {Technische Hochschule Brandenburg}, pages = {244 -- 255}, year = {2019}, language = {de} } @incollection{Johannsen2019, author = {Johannsen, Andreas}, title = {Nachgefragt: Schnittstellen als Schl{\"u}ssel f{\"u}r die vernetzte Wirtschaft?}, series = {Vernetzte Wertsch{\"o}pfung. Themenheft Mittelstand-Digital}, booktitle = {Vernetzte Wertsch{\"o}pfung. Themenheft Mittelstand-Digital}, publisher = {Bundesministerium f{\"u}r Wirtschaft und Energie}, address = {Berlin}, publisher = {Technische Hochschule Brandenburg}, pages = {24 -- 25}, year = {2019}, language = {de} } @unpublished{Brasche2024, author = {Brasche, Ulrich}, title = {Climate justice - dimensions and conflicts}, pages = {12}, year = {2024}, abstract = {Probably no-one will publicly admit that justice is not important to him. The allegation of injustice is used to describe moral positions and justify demands. However, there is no simple and unambiguous description of just positions or just actions. To overcome the man-made climate crisis, a fair distribution of benefits and burdens is called for. Some stakeholders also use the argument of justice to disguise their interests. The question to be clarified is: Who may cause how much damage to whom and who must make what efforts to compensate for the damage and prevent future damage? This text reports on attempts to establish an ethical foundation for climate justice and on international political activities that claim to achieve greater climate justice.}, language = {en} } @article{Lindauer2025, author = {Lindauer, Friederike}, title = {Fehlerkultur als Erfolgsfaktor- Fehler als Lernanlass interpretieren und in HR-Strategien integrieren}, series = {Abacus Umantis}, journal = {Abacus Umantis}, pages = {1 -- 13}, year = {2025}, abstract = {Diese Forschung untersucht die Bedeutung einer offenen Fehlerkultur f{\"u}r den Erfolg von Organisationen. Ziel ist es, die Auswirkungen einer Learning-from-Failure Culture (LFFC) auf Innovationskraft und Resilienz zu analysieren. Durch Literaturrecherche, Umfragen und Fallstudien sollen Handlungsempfehlungen f{\"u}r HR-Verantwortliche und F{\"u}hrungskr{\"a}fte entwickelt werden. Erwartet wird, dass eine positive Fehlerkultur das Lernen und die Zusammenarbeit f{\"o}rdert und die Innovationsf{\"a}higkeit steigert. Die Ergebnisse sollen als Grundlage f{\"u}r Schulungsprogramme und HR-Strategien dienen, um die Fehlerkultur in Unternehmen zu st{\"a}rken.}, language = {de} } @techreport{FroschDamusHaberlandetal.2025, author = {Frosch, Katharina and Damus, Martha and Haberland, Steffi and H{\"a}dicke, Svenja and Lindauer, Friederike and Winkel, Carmen}, title = {Lehren mit KI: Talk2Transform (T2T)}, series = {Wie KI Studium und Lehre ver{\"a}ndert Anwendungsfelder, Use-Cases und Gelingensbedingungen}, journal = {Wie KI Studium und Lehre ver{\"a}ndert Anwendungsfelder, Use-Cases und Gelingensbedingungen}, publisher = {Hochschulforum Digitalisierung}, pages = {23 -- 25}, year = {2025}, language = {de} } @inproceedings{FitzVeldyaevaTeutenbergetal.2023, author = {Fitz, Lukas R. G. and Veldyaeva, Ekaterina and Teutenberg, Lukas and Scheeg, Michaela and Scheeg, Jochen}, title = {Puzzle away the Puzzledness: Action-Design Study of an Educational Escape Room for Intervention in SMEs' Perception towards ICT Adoption}, series = {Konferenz: 57th Hawaii International Conference on System Sciences (HICSS); Honolulu, HI, USA}, booktitle = {Konferenz: 57th Hawaii International Conference on System Sciences (HICSS); Honolulu, HI, USA}, isbn = {978-0-9981331-7-1}, doi = {10.24251/HICSS.2024.642}, pages = {5347 -- 5356}, year = {2023}, abstract = {Digital transformation initiatives in small and medium-sized enterprises (SME) are often hampered by individual practitioners' perceptions of information and communication technology (ICT). This research employs an educational escape room (ER) game for an intervention towards informed decision-making on ICT adoption in SMEs. ER design and implementation are elaborated and consequently tested with SME practitioners, all embedded in an action-design study based on a qualitative research methodology. The result highlights a trade-off between creating immersive game experiences and achieving learning objectives. Still, the outcome implies an impact on players' perception of ICT integrated in the ER. The findings contribute to the emerging field of serious games for learning and shed light on the potential of game-based interventions for SMEs.}, language = {en} } @techreport{ScheegScheegFitz2021, author = {Scheeg, Jochen and Scheeg, Michaela and Fitz, Lukas R. G.}, title = {"Ich will loslegen"-Studie: Wie ticken Unternehmen die digital loslegen wollen?}, pages = {48}, year = {2021}, abstract = {„Ich will loslegen!" (IWL). Dieser Ausruf spiegelt die Motivation der befragten Unternehmer*innen zu einem Zeitpunkt wider, an dem sie sich entschlossen haben, ein erstes oder neues Digitalisierungsprojekt zu initiieren. Um aktiv eine Unterst{\"u}tzung f{\"u}r das Vorhaben anzufragen, beantworteten kleinste, kleine und mittlere Unternehmen (KKMU) die 100 Fragen des IST-1-Fragebogens. Unsere IWL-Studie beinhaltet die Analyse der Antworten der Unternehmer*innen und erm{\"o}glicht neue Erkenntnisse. Sie zeigt Bed{\"u}rfnisse und Widerspr{\"u}che im Hinblick auf Digitalisierungsvorhaben auf. Wo setzen KKMU ihren Fokus, wie handeln sie und welche Potenziale und H{\"u}rden offenbaren sich im Kontext digitaler L{\"o}sungen? Die verschiedenen Punkte werden in der vorliegenden Fassung anhand von Hypothesen erl{\"a}utert und abschließend diskutiert.}, language = {de} } @inproceedings{FitzScheeg2021, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Propositions towards the Impact of Moral Values in Information System Design on Information System Success Depicted by the DeLone \& McLean Information System Success Model}, series = {Proceedings of the 18th International Conference on e-Business - Volume 1: E-DaM, Lieusaint - Paris, France}, booktitle = {Proceedings of the 18th International Conference on e-Business - Volume 1: E-DaM, Lieusaint - Paris, France}, publisher = {SciTePress}, isbn = {978-989-758-527-2}, issn = {2184-772X}, doi = {10.5220/0010626101950206}, pages = {195 -- 206}, year = {2021}, language = {en} } @article{FitzScheegScheeg2022, author = {Fitz, Lukas R. G. and Scheeg, Michaela and Scheeg, Jochen}, title = {Amplifying Human Factors in the Inquiry of SMEs' Needs in Digitalization Collaborations with External Service Providers}, series = {Procedia Computer Science}, volume = {200}, journal = {Procedia Computer Science}, publisher = {Elsevier}, issn = {1877-0509}, doi = {10.1016/j.procs.2022.01.257}, pages = {595 -- 601}, year = {2022}, language = {en} } @article{ScheegDzielinskiFitz2020, author = {Scheeg, Jochen and Dzielinski, Patrick and Fitz, Lukas R. G.}, title = {Analyse von Digitalen Reifegradmodellen f{\"u}r Kleine und Mittlere Unternehmen/Analysis of Digital Maturity Models for SMEs}, publisher = {Institut f{\"u}r Innovations- und Informationsmanagement (ifii)}, year = {2020}, language = {de} } @article{WagenerFitz2022, author = {Wagener, Jan and Fitz, Lukas R. G.}, title = {How to assemble an Automatic Water Dispenser System - Design of a Learning Station feat. Augmented Reality}, publisher = {University of South Florida}, pages = {6}, year = {2022}, language = {en} } @inproceedings{FitzScheeg2023, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {What is Digital about Digital Innovation? An Ontological Discussion of Digitality}, series = {Konferenz: 29th Americas Conference on Information Systems}, booktitle = {Konferenz: 29th Americas Conference on Information Systems}, publisher = {Panama City, Panama}, year = {2023}, abstract = {"Digital" is a popular adjective for concepts related to electronic, computerized or networked processes in current research and practice. From an ontological-theoretical perspective, the prevalence of digital things triggers the question, how Digitality itself could be conceptualized. This article studies the ontology of Digitality and consequently discusses Digital Innovation (DI) from a new perspective. First, literature on Digitality is analyzed. Based on the findings, an ontological conceptual framework of Digitality (OCFD) is proposed. It describes four layers of Digitality: physical foundations, virtuality, digital culture and world, and digital metaphysics. From a human perspective, requirements to grasp and embody Digitality are highlighted, as well as the expansion of reality. Finally, Digitality is discussed as a paradigm of DI and exemplary digital phenomena are projected onto the OCFD. This paper contributes to DI research and practice through theory-building towards a better understanding of ontological characteristics and practical implications of Digitality in DI.}, language = {en} } @masterthesis{Radke2025, type = {Bachelor Thesis}, author = {Radke, Niclas}, title = {Entwicklung einer mobilen Incident-Response-Netzwerksensorik zur Analyse von Datenverkehr in kompromittierten Netzwerken}, publisher = {Technische Hochschule Brandenburg}, address = {Brandenburg an der Havel}, doi = {10.25933/opus4-3360}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:522-opus4-33608}, school = {Technische Hochschule Brandenburg}, pages = {89}, year = {2025}, abstract = {Das Ziel der vorliegenden Arbeit ist es, die These zu best{\"a}tigen, dass sich eine mobile Incident-Response-Netzwerksensorik in einer zuvor unbekannten Netzwerkumgebung innerhalb eines festgelegten Zeitraums installieren l{\"a}sst und die forensische Analyse entscheidend unterst{\"u}tzen kann. Dazu wurden Anforderungen an die mobile Netzwerksensorik mithilfe von zwei Experteninterviews erhoben, deren Erf{\"u}llung an die Best{\"a}tigung der These gekoppelt ist. Zur Umsetzung der Anforderungen wurden Soft- und Hardwarekomponenten ausgew{\"a}hlt, die in Kombination die Netzwerksensorik bilden. Bei der Softwareauswahl zeigte sich, dass die Plattforml{\"o}sung Security Onion aufgrund der Vielzahl implementierter Softwarekomponenten, der umfangreichen Dokumentation und der Architektur besser geeignet ist, die Projektanforderungen zu erf{\"u}llen und damit die These zu best{\"a}tigen, als Clear NDR. Durch drei Versuche konnte die These erfolgreich best{\"a}tigt werden. Damit liefert die Arbeit wichtige Grundlagen f{\"u}r die Implementierung einer mobilen Netzwerksensorik. Durch weitere Versuche und die in dieser Arbeit vorgestellten Hardwareempfehlungen kann in Zukunft eine praxistaugliche mobile Netzwerksensorik in Betrieb genommen werden.}, language = {de} } @masterthesis{Schumacher2025, type = {Bachelor Thesis}, author = {Schumacher, Jan Gregor}, title = {Untersuchung von Response-Optionen der Wazuh Endpoint-Detection zur Isolierung verd{\"a}chtiger Endger{\"a}te}, publisher = {Technische Hochschule Brandenburg}, address = {Brandenburg an der Havel}, doi = {10.25933/opus4-3362}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:522-opus4-33624}, school = {Technische Hochschule Brandenburg}, pages = {63}, year = {2025}, abstract = {Diese Arbeit entwickelt und realisiert automatisierte Reaktionsme-chanismen zur Netzwerkisolierung kompromittierter Endger{\"a}te mit-tels der Open-Source-Plattform Wazuh. Es werden zwei Ans{\"a}tze als Proof of Concept implementiert und verglichen: eine host-basierte Isolierung durch Deaktivierung der lokalen Netzwerk-schnittstelle (Windows/Linux) und eine netzwerk-basierte Methode, die den Switch-Port des Ger{\"a}ts zentral abschaltet. Die Validierung in einer Testumgebung zeigt, dass die host-basierte Methode eine schnelle Reaktion erm{\"o}glicht, w{\"a}hrend der netzwerk-basierte An-satz unempfindlicher gegen{\"u}ber Manipulationen auf dem Host ist.}, language = {de} } @article{VogelWoelferRamirezDiazetal.2020, author = {Vogel, Sven and W{\"o}lfer, Christian and Ramirez-Diaz, Diego and Flassig, Robert and Sundmacher, Kai and Schwille, Petra}, title = {Symmetry Breaking and Emergence of Directional Flows in Minimal Actomyosin Cortices}, series = {Cells}, journal = {Cells}, publisher = {MDPI}, doi = {10.3390/cells9061432}, pages = {1 -- 10}, year = {2020}, abstract = {Cortical actomyosin flows, among other mechanisms, scale up spontaneous symmetry breaking and thus play pivotal roles in cell differentiation, division, and motility. According to many model systems, myosin motor-induced local contractions of initially isotropic actomyosin cortices are nucleation points for generating cortical flows. However, the positive feedback mechanisms by which spontaneous contractions can be amplified towards large-scale directed flows remain mostly speculative. To investigate such a process on spherical surfaces, we reconstituted and confined initially isotropic minimal actomyosin cortices to the interfaces of emulsion droplets. The presence of ATP leads to myosin-induced local contractions that self-organize and amplify into directed large-scale actomyosin flows. By combining our experiments with theory, we found that the feedback mechanism leading to a coordinated directional motion of actomyosin clusters can be described as asymmetric cluster vibrations, caused by intrinsic non-isotropic ATP consumption with spatial confinement. We identified fingerprints of vibrational states as the basis of directed motions by tracking individual actomyosin clusters. These vibrations may represent a generic key driver of directed actomyosin flows under spatial confinement in vitro and in living systems.}, language = {en} } @inproceedings{VeldyaevaFitzScheeg2023, author = {Veldyaeva, Ekaterina and Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Developing Digital Competencies in Small and Medium-Sized Enterprises Through Microlearning Applications: A Research Agenda}, series = {Konferenz: Perspectives in Business Informatics Research 22nd International Conference on Business Informatics Research, BIR 2023, Ascoli Piceno, Italy, September 13-15, 2023, Proceedings}, booktitle = {Konferenz: Perspectives in Business Informatics Research 22nd International Conference on Business Informatics Research, BIR 2023, Ascoli Piceno, Italy, September 13-15, 2023, Proceedings}, doi = {10.1007/978-3-031-43126-5_7}, pages = {41 -- 58}, year = {2023}, abstract = {This article presents a research outline on the use of microlearning applications to develop digital competencies in Small and Medium-sized Enter-prises (SMEs). The digital transformation of businesses has become essential for their survival, and SMEs need to develop digital competencies (DC) to remain competitive in the market. Microlearning (ML), a form of learning that involves small, bite-sized learning modules, has been gaining popularity in recent years as a way to efficiently and effectively develop skills. Through a semi-systematic literature review approach, our study examines prevalent knowledge in the area of ML and DC and discusses interrelations. As a result, we propose a research roadmap consisting of six research questions targeting four dimensions of ML for DC development in SMEs: 1) context, 2) formats, 3) reward system, and 4) complexity level.}, language = {en} } @incollection{FitzScheeg2023, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Small Businesses Participating in Digital Platform Ecosystems - A Descriptive Literature Review}, series = {Digital Transformation. PLAIS EuroSymposium 2023. Lecture Notes in Business Information Processing}, booktitle = {Digital Transformation. PLAIS EuroSymposium 2023. Lecture Notes in Business Information Processing}, doi = {10.1007/978-3-031-43590-4_3}, year = {2023}, abstract = {The emergence of digital multi-sided platforms has disrupted day-to-day business in many industries. Nowadays, many small businesses participate in digital platform (DP) ecosystems and act as value creators or complementors. Investigating the small business perspective does not have a rich tradition in platform research yet. In response, this paper presents a systematic literature review (SLR) analyzing the thematic points of focus and highlighting new avenues for information systems and small business research. We find that objectives related to digital transformation, digital strategy- and business model-development, and DP adoption are fundamental topics in the conjunction of small business and DP ecosystems. Based on the findings, an agenda for future research is developed, including propositions for practice-oriented and human-centered approaches fostering sustilience, innovation capabilities and digital leadership competencies in small businesses facing DP ecosystem participation.}, language = {en} } @article{GoschinVogelFlassig2022, author = {Goschin, Tobias and Vogel, Mathias and Flassig, Robert}, title = {Energy Technologies For Decarbonizing The Steel Processing Industry - A Numerical Study}, series = {IFAC-PapersOnLine}, volume = {55}, journal = {IFAC-PapersOnLine}, number = {9}, publisher = {Elsevier}, doi = {https://doi.org/10.1016/j.ifacol.2022.07.001}, pages = {1 -- 5}, year = {2022}, abstract = {This study analyzes approaches to decarbonize the energy supply of the secondary steel processing industry. Therefore, real data from a secondary steel production company is used in combination with state-of-the art low carbon energy supply technologies. Also, the use of waste heat from a pusher furnace for process integration is considered. The developed temporal process model allows holistic optimizing and expanding the steel making process system regarding techno-economic criteria. As we show, implementing the annual heat demand of a municipality shows that a nearly 100 \% self-sufficient heat supply is possible.}, language = {en} } @article{KantJohannsenCreutzburg2021, author = {Kant, Daniel and Johannsen, Andreas and Creutzburg, Reiner}, title = {Analysis of IoT Security Risks based on the exposure of the MQTT Protocol}, series = {Electronic Imaging}, volume = {33}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-096}, pages = {096-1 -- 096-8}, year = {2021}, language = {en} } @inproceedings{HeidenreichFranczykJohannsen2022, author = {Heidenreich, Michael and Franczyk, Bogdan and Johannsen, Andreas}, title = {Evaluation study of an IT security measurement method for micro-enterprises}, series = {Proc. of the International Conference on Electrical, Computer and Energy Technologies (ICECET 2022) 20-22 July 2022, Prague-Czech Republic}, booktitle = {Proc. of the International Conference on Electrical, Computer and Energy Technologies (ICECET 2022) 20-22 July 2022, Prague-Czech Republic}, publisher = {IEEE}, doi = {10.1109/ICECET55527.2022.9873487}, year = {2022}, language = {en} } @inproceedings{VogelGoschinFlassig2022, author = {Vogel, Mathias and Goschin, Tobias and Flassig, Robert}, title = {Techno-economic analysis of excess wind energy utilization in the energy supply of residential quarters}, series = {Konferenz: Symposium on Control of Power and Energy Systems (CPES), 2022/ Konferenzband:11th IFAC Symposium on Control of Power and Energy Systems (CPES 2022)}, booktitle = {Konferenz: Symposium on Control of Power and Energy Systems (CPES), 2022/ Konferenzband:11th IFAC Symposium on Control of Power and Energy Systems (CPES 2022)}, publisher = {Elsevier}, doi = {10.32479/ijeep.8067}, pages = {558}, year = {2022}, language = {en} } @article{TrittelKloppHarthetal.2022, author = {Trittel, Torsten and Klopp, Christoph and Harth, Kirsten and Stannarius, Ralf}, title = {Stability and Rupture of Liquid Crystal Bridges under Microgravity}, series = {Crystals}, volume = {12}, journal = {Crystals}, number = {8}, publisher = {MDPI}, doi = {https://doi.org/10.3390/cryst12081092}, pages = {16}, year = {2022}, language = {en} } @inproceedings{WagnerKitzelmannBoersch2025, author = {Wagner, Robin and Kitzelmann, Emanuel and Boersch, Ingo}, title = {Mitigating Hallucination by Integrating Knowledge Graphs into LLM Inference - a Systematic Literature Review}, series = {Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 4: Student Research Workshop)}, booktitle = {Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 4: Student Research Workshop)}, publisher = {Association for Computational Linguistics}, address = {Vienna}, doi = {10.18653/v1/2025.acl-srw.53}, pages = {795 -- 805}, year = {2025}, abstract = {Large Language Models (LLMs) demonstrate strong performance on different language tasks, but tend to hallucinate - generate plausible but factually incorrect outputs. Recently, several approaches to integrate Knowledge Graphs (KGs) into LLM inference were published to reduce hallucinations. This paper presents a systematic literature review (SLR) of such approaches. Following established SLR methodology, we identified relevant work by systematically search in different academic online libraries and applying a selection process. Nine publications were chosen for indepth analysis. Our synthesis reveals differences and similarities of how the KG is accessed, traversed, and how the context is finally assembled. KG integration can significantly improve LLM performance on benchmark datasets and additionally to mitigate hallucination enhance reasoning capabilities, explainability, and access to domain-specific knowledge. We also point out current limitations and outline directions for future work.}, language = {en} } @inproceedings{KalbitzVielhauer2019, author = {Kalbitz, Michael and Vielhauer, Claus}, title = {Automated forensic ink determination in handwritten documents by clustering}, series = {2019 27th European Signal Processing Conference (EUSIPCO) Ort: A Coru{\~n}a, Spanien, 2. bis 6. September 2019}, booktitle = {2019 27th European Signal Processing Conference (EUSIPCO) Ort: A Coru{\~n}a, Spanien, 2. bis 6. September 2019}, publisher = {IEEE}, address = {New York}, isbn = {978-9-0827-9703-9}, issn = {2076-1465}, doi = {10.23919/EUSIPCO.2019.8903107}, pages = {1 -- 5}, year = {2019}, language = {en} } @unpublished{TusetPeiroPilgermannPeguerolesetal.2025, author = {Tuset-Peiro, Pere and Pilgermann, Michael and Pegueroles, Josep and Vilajosana, Xavier}, title = {Assessing Cybersecurity of Internet-Facing Medical IT Systems in Germany \& Spain Using OSINT Tools}, doi = {10.20944/preprints202503.1340.v1}, pages = {190 -- 197}, year = {2025}, abstract = {This paper investigates cybersecurity threats in medical IT (Information Technology) systems exposed to the Internet. To that end, we develop a methodology and build a data processing pipeline that allows to gather data from different OSINT (Open Source Intelligence) sources, and processes it to obtain relevant cybersecurity metrics. To validate its operation and usefulness, we apply it to two countries, Germany and Spain, allowing to study the main threats that affect medical IT systems in these countries. Our initial findings reveal that 20\% of German hosts and 15\% of Spanish hosts tagged as medical devices have at least one CVE (Common Vulnerabilities and Exposures) with a CVSS (Common Vulnerability Scoring System) graded as critical (i.e., value 8 or greater). Moreover, we found that 74\% of CVEs found in German hosts are dated from earlier than 2020, whereas for Spanish hosts the percentage is 60\%. This indicates that medical IT systems exposed to the Internet are seldom updated, which further increases their exposure to cyberthreats. Based on these initial findings, we finish the paper providing some insights on how to improve cybersecurity of these systems.}, language = {en} } @book{Kraska2025, author = {Kraska, Martin}, title = {Engineering Calculations with SMath}, publisher = {Technische Hochschule Brandenburg}, address = {Brandenburg an der Havel}, doi = {10.25933/opus4-3370}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:522-opus4-33709}, publisher = {Technische Hochschule Brandenburg}, pages = {41}, year = {2025}, abstract = {Introduction to SMath Studio covering the topics installation, configuration, creating text and formulas, scientific units, graphics, embedded images. The tutorial takes approximately 2 hours to complete.}, subject = {SMath}, language = {en} } @article{WeberSteinPilgermannetal.2023, author = {Weber, Simon B. and Stein, Stefan and Pilgermann, Michael and Schrader, Thomas}, title = {Attack Detection for Medical Cyber-Physical Systems - A Systematic Literature Review}, series = {IEEE Access}, journal = {IEEE Access}, number = {11}, publisher = {IEEE}, doi = {10.1109/ACCESS.2023.3270225}, pages = {41796 -- 41815}, year = {2023}, abstract = {The threat situation due to cyber attacks in hospitals is emerging and patient life is at risk. One significant source of potential vulnerabilities is medical cyber-physical systems (MCPS). Detecting intrusions in this environment faces challenges different from other domains, mainly due to the heterogeneity of devices, the diversity of connectivity types, and the variety of terminology. To summarize existing results, we conducted a structured literature review (SLR) following the guidelines of Kitchenham et al. for SLRs in software engineering. We developed six research questions regarding detection approach, detection location, included features, adversarial focus, utilized datasets, and intrusion prevention. We identified that most researchers focused on an anomaly-based detection approach at the network layer. The primary focus was on the detection of malicious insiders. While several researchers used publicly available datasets for training and testing their algorithms, the lack of suitable datasets resulted in the development of testbeds consisting of various medical devices. Based on the results, we formulated five future research topics. First, the special conditions of hospital networks, the MCPS deployed within them, and the contrasts to other IT and OT environments should be examined. Thereupon, MCPS-specific datasets should be created that allow researchers to address the health domain's unique requirements and possibilities. At the same time, endeavors aimed at standardization in this area should be supported and expanded. Moreover, the use of medical context for attack detection should be further explored. Last but not least, efforts for MCPS-tailored intrusion prevention should be intensified. This way, the emerging threat landscape can be addressed, IT security in hospitals can be improved, and patient health can be protected.}, language = {en} } @article{JamilMihajloskaTrpcheskaPopovskaMitrovikjetal., author = {Jamil, Mahnoor and Mihajloska Trpcheska, Hristina and Popovska-Mitrovikj, Aleksandra and Dimitrova, Vesna and Creutzburg, Reiner}, title = {Advancing Image Spam Detection: Evaluating Machine Learning Models Through Comparative Analysis}, series = {Applied Sciences}, volume = {15}, journal = {Applied Sciences}, number = {11}, publisher = {MDPI}, issn = {2076-3417}, doi = {10.3390/app15116158}, abstract = {Image-based spam poses a significant challenge for traditional text-based filters, as malicious content is often embedded within images to bypass keyword detection techniques. This study investigates and compares the performance of six machine learning models—ResNet50, XGBoost, Logistic Regression, LightGBM, Support Vector Machine (SVM), and VGG16—using a curated dataset containing 678 legitimate (ham) and 520 spam images. The novelty of this research lies in its comprehensive side-by-side evaluation of diverse models on the same dataset, using standardized dataset preprocessing, balanced data splits, and validation techniques. Model performance was assessed using evaluation metrics such as accuracy, receiver operating characteristic (ROC) curve, precision, recall, and area under the curve (AUC). The results indicate that ResNet50 achieved the highest classification performance, followed closely by XGBoost and Logistic Regression. This work provides practical insights into the strengths and limitations of traditional, ensemble-based, and deep learning models for image-based spam detection. The findings can support the development of more effective and generalizable spam filtering solutions in multimedia-rich communication platforms.}, language = {en} } @article{PilgermannSteinSchraderetal.2021, author = {Pilgermann, Michael and Stein, Stefan and Schrader, Thomas and Weber, Simon}, title = {Angriffserkennung beim Betrieb von KRITIS gem{\"a}ß IT-Sicherheitsgesetz 2.0}, series = {Datenschutz und Datensicherheit}, volume = {45}, journal = {Datenschutz und Datensicherheit}, doi = {10.1007/s11623-021-1525-z}, pages = {733 -- 737}, year = {2021}, abstract = {Die Krankenhaus-IT sieht sich einer stetig zunehmenden Bedrohung der Sicherheit der Patientendaten und des Krankenhausbetriebes gegen{\"u}ber. Der Gesundheitssektor geh{\"o}rt zu den Kritischen Infrastrukturen, die zunehmend strengeren Regelungen unterliegen. J{\"u}ngste Regulierung ist das IT-Sicherheitsgesetz 2.0, das unter anderem Maßnahmen zur Detektion von Angriffen fordert. Der Beitrag stellt vor, wie eine branchenspezifische Umsetzung dieser Anforderung aussehen k{\"o}nnte.}, language = {de} } @article{NitzeWangJahnetal.2024, author = {Nitze, Andr{\´e} and Wang, Tingting and Jahn, Josephine and Ali, Sabah and Miesner, Timon}, title = {Lessons learned from building sustainable municipal LoRaWan infrastructure}, series = {International Journal On Advances in Networks and Services}, volume = {17}, journal = {International Journal On Advances in Networks and Services}, number = {3\&4}, publisher = {IARIA}, pages = {59 -- 68}, year = {2024}, abstract = {Abstract—This paper introduces the LoRaWAN Collaboration Framework (LCF), a strategic blueprint for deploying and managing LoRaWAN infrastructures in smart cities with an emphasis on rural and small municipalities. LoRaWAN technology distinguishes itself by its capability to support long-range, low-power IoT applications, making it ideal for extensive and sparsely populated areas. The LCF aims to address common challenges in these settings, such as limited technical expertise, financial constraints, and the need for cross-municipal cooperation. It outlines roles and responsibilities across various stakeholders including municipal authorities, IT service providers, application developers, and end-users. The framework emphasizes the balance of technological, economic, social and ecological sustainability in line with the United Nations' Sustainable Development Goals. In this paper, we describe the experiences from several LoRaWAN projects in small towns and municipalities in Germany and give some insights to these use cases, the derived collaboration framework, and other arguments to consider before implementing LoRaWAN infrastructures.}, language = {en} } @article{SchmietendorfNitzeHentschel2017, author = {Schmietendorf, Andreas and Nitze, Andr{\´e} and Hentschel, Jan}, title = {Entscheidungskriterien f{\"u}r SaaS-Services bei KMUs - Ergebnisse einer empirischen Untersuchung}, series = {WI-MAW-Rundbrief / Gesellschaft f{\"u}r Informatik e. V., Fachausschuß Management der Anwendungsentwicklung und -wartung (WI-MAW) im FB Wirtschaftsinformatik}, volume = {23.2017=41}, journal = {WI-MAW-Rundbrief / Gesellschaft f{\"u}r Informatik e. V., Fachausschuß Management der Anwendungsentwicklung und -wartung (WI-MAW) im FB Wirtschaftsinformatik}, number = {1}, pages = {13 -- 20}, year = {2017}, language = {de} } @inproceedings{Nitze2017, author = {Nitze, Andr{\´e}}, title = {Contact-first Development - vom Open API (Swagger) basierten Vertrag zur Implementierung}, series = {ESAPI 2017 : 1. Workshop Evaluation of Service-APIs 02. November 2017, Berlin}, booktitle = {ESAPI 2017 : 1. Workshop Evaluation of Service-APIs 02. November 2017, Berlin}, editor = {Schmietendorf, Andreas}, publisher = {Shaker verlag}, address = {Aachen}, isbn = {978-3-8440-5559-7}, pages = {53 -- 64}, year = {2017}, language = {de} } @article{KiertscherNitze2018, author = {Kiertscher, Tobias and Nitze, Andr{\´e}}, title = {Erfahrungsbericht {\"u}ber Docker ohne Cloud}, series = {Java-Spektrum : Magazin f{\"u}r professionellen Einsatz von Java, Web-Technologien und XML}, journal = {Java-Spektrum : Magazin f{\"u}r professionellen Einsatz von Java, Web-Technologien und XML}, number = {3/2018}, issn = {1431-4436}, pages = {20 -- 24}, year = {2018}, language = {de} } @inproceedings{OPUS4-3071, title = {Berliner Schriften zu modernen Integrationsarchitekturen: API-First/API-Management - Open APIs als Treiber der Digitalisierung}, series = {Konferenz: Enterprise Computing Conference ; 2018 ; Hamburg/ Titel:API-First/API-Management - Open APIs als Treiber der Digitalisierung : Workshop im Rahmen der Enterprise Computing Conference, 19. April 2018, Hamburg}, booktitle = {Konferenz: Enterprise Computing Conference ; 2018 ; Hamburg/ Titel:API-First/API-Management - Open APIs als Treiber der Digitalisierung : Workshop im Rahmen der Enterprise Computing Conference, 19. April 2018, Hamburg}, number = {18}, editor = {Nitze, Andr{\´e} and Schmietendorf, Andreas}, publisher = {Shaker}, address = {Aachen}, isbn = {978-3-8440-5927-4}, pages = {IV -- 64}, year = {2018}, abstract = {Die Anzahl von mit Hilfe der Internettechnologie im Web zur Verf{\"u}gung gestellten offenen API (Open APIs) zeigt ein exponentielles Wachstum. Auf der Grundlage kompositorisch zusammengesetzter APIs entstehen innovative L{\"o}sungen, die sich zunehmend als Treiber der Digitalisierung positionieren. Vor diesem Hintergrund gilt es, Open APIs aus der Perspektive der fachlichen Nutzung zu gestalten, so dass diese in m{\"o}glichst vielf{\"a}ltigen Anwendungsszenarien stabil und nachhaltig verwendet werden k{\"o}nnen. In diesem Zusammenhang wird auch von einer „API first"-Strategie gesprochen. Die erste Session des Workshops widmet sich dieser Themenstellung, wobei u.a. auf Fragen der API-Gestaltung mit Hilfe einer OpenAPI bzw. Swagger Spezifikation eingegangen wird. Mit Aspekten des entwicklungsseitig und betrieblich ben{\"o}tigten API-Managements besch{\"a}ftigt sich dann die zweite Session. Dabei soll sowohl auf Aspekte der Identifizierung und Authentifizierung konkreter API-Zugriffe als auch auf die Themenstellung einer DevOps-orientierten API-Bereitstellung eingegangen werden. Innovative Techniken, welche im Diskurs einer kompositorischen Softwareentwicklung verwendet werden k{\"o}nnen, stehen im Mittelpunkt der letzten Session. Dabei geht es zun{\"a}chst um die durch Facebook propagierte Abfragesprache GraphQL, welche die Einbindung von httpbasierten APIs vereinfachen soll. Ein weiterer Beitrag beschreibt die Entwicklung einer mobil einsetzbaren Serviceapplikation, die umfangreichen Gebrauch von Open APIs macht. Dabei wird auf lokal installierte Entwicklungsumgebungen weitgehend verzichtet, d.h. auch diese findet Cloud-basiert statt. Der thematische Hintergrund dieses Workshops entstammt dem im letzten Jahr in Berlin durchgef{\"u}hrten ESAPI-Workshop (speziell dem World Caf{\´e}). Die Ergebnisse der dort diskutierten Fragen sind im letzten Beitrag dokumentiert.}, language = {de} } @inproceedings{ThiersL'OrteyeOrlowskietal.2013, author = {Thiers, Angelina and L'Orteye, Annett and Orlowski, Katja and Schrader, Thomas}, title = {Investigation of the Sensormonitor Training - Analysing Exercisers with one-dimensional and multidimensional Instability}, series = {Konferenz: International Congress on Sports Science Research and Technology Support/ Titel: icSPORTS 2013 : Proceedings of the International Congress on Sport Science Research and Technology Support ; September 20-22, 2013, in Vilamoura, Algarve, Portugal}, booktitle = {Konferenz: International Congress on Sports Science Research and Technology Support/ Titel: icSPORTS 2013 : Proceedings of the International Congress on Sport Science Research and Technology Support ; September 20-22, 2013, in Vilamoura, Algarve, Portugal}, publisher = {Science and Technology Publications}, address = {Vilamoura, Algarve, Portugal}, isbn = {978-989-8565-79-2}, doi = {10.5220/0004637700710078}, pages = {71 -- 78}, year = {2013}, abstract = {The importance and the attractivity of the sensorimotor training is still growing. Up to now the impact of the training on the body is not yet fully investigated. Hence, nowadays the planning of the therapy is mainly based on the experiences of the physiotherapist and on the conditions of the practice. For the development of the therapy the physiotherapist is supported by manufacturer's information about the exercisers as well as by general assumptions regarding the sensorimotor training. For the validation of this information two setups were investigated. In the first part, the behavior of two students was studied on three exercisers. Here the EMG data and the motion data were analyzed. In the second part, the behavior of the left and the right body side was analyzed for 16 subjects. The study revealed that the major work for the maintenance of the equilibrium is done by the distal musculature. Furthermore, it was shown that there is a different behavior of the musculature at both body sides. Additionally, it has been proven that each test person had an individual behavior on the exercisers. Consequently, it would be hard to make general assumptions regarding the impact of the training on the body.}, language = {en} } @inproceedings{NitzeWangJahnetal.2024, author = {Nitze, Andr{\´e} and Wang, Tingting and Jahn, Josephine and Ali, Sabah}, title = {Beyond Connectivity: A Sustainable Approach to Municipal LoRaWAN Infrastructure and Services}, series = {Konferenz: ICDS 2024 : The Eighteenth International Conference on Digital Society; Barcelona, Spain}, booktitle = {Konferenz: ICDS 2024 : The Eighteenth International Conference on Digital Society; Barcelona, Spain}, publisher = {IARIA}, pages = {19 -- 24}, year = {2024}, abstract = {This paper introduces the LoRaWAN Collaboration Framework (LCF), a strategic blueprint for deploying and managing LoRaWAN infrastructures in smart cities with an emphasis on rural and small municipalities. LoRaWAN technology is distinguished by its capability to support long-range, low-power IoT applications, making it ideal for extensive and sparsely populated areas. The LCF aims to address common challenges in these settings, such as limited technical expertise, financial constraints, and the need for cross-municipal cooperation. It outlines roles and responsibilities across various stakeholders including municipal authorities, IT service providers, application developers, and end-users. The framework emphasizes the balance of technological, economic, ecological, and social sustainability in line with the United Nations' Sustainable Development Goals. In this paper we describe the experiences from several LoRaWAN projects in small towns and municipalities, the derived framework, and future research directions towards ensuring the economic viability of the proposed model.}, language = {en} } @inproceedings{ThiersMeffofokOrlowskietal.2013, author = {Thiers, Angelina and Meffofok, L. and Orlowski, Katja and Schrader, Kerstin and Tietze, B. and L'Orteye, Annett and Schrader, Thomas}, title = {Investigation of the Sensormonitor Training using Wireless Sensor Networks - Analyzing Three Different Exerciser}, series = {Konferenz: International Conference on Healt Informatics (HEALTHINF)/ Titel: Proceedings of the International Conference on Health Informatics (HEALTHINF-2013)}, booktitle = {Konferenz: International Conference on Healt Informatics (HEALTHINF)/ Titel: Proceedings of the International Conference on Health Informatics (HEALTHINF-2013)}, publisher = {SCITEPRESS - Science and Technology Publications}, address = {Barcelona, Spain}, isbn = {978-989-5865-37-2}, doi = {10.5220/0004329004130416}, pages = {413 -- 416}, year = {2013}, language = {en} } @inproceedings{SchraderLoewePelchenetal.2015, author = {Schrader, Thomas and L{\"o}we, Katharina and Pelchen, Lutz and Beck, Eberhard}, title = {Analyse der Patientensicherheit in medizinisches Prozessen: der OPT - Modell - Generator}, series = {MedPro 2015, Medizinische Prozesse - Patienten - Sicherheit : Tagungsband ; Brandenburg an der Havel, 5. November 2015}, booktitle = {MedPro 2015, Medizinische Prozesse - Patienten - Sicherheit : Tagungsband ; Brandenburg an der Havel, 5. November 2015}, editor = {Beck, Eberhard}, publisher = {Fachhochschule Brandenburg}, address = {Brandenburg an der Havel}, pages = {49 -- 61}, year = {2015}, language = {de} } @inproceedings{SchraderLoewePelchenetal.2015, author = {Schrader, Thomas and L{\"o}we, Katharina and Pelchen, Lutz and Beck, Eberhard}, title = {Sicherheits- und Risikoanalyse in medizinischen Prozessen - das Open-Process-Task-Model}, series = {MedPro 2015, Medizinische Prozesse - Patienten - Sicherheit : Tagungsband ; Brandenburg an der Havel, 5. November 2015}, booktitle = {MedPro 2015, Medizinische Prozesse - Patienten - Sicherheit : Tagungsband ; Brandenburg an der Havel, 5. November 2015}, publisher = {Fachhochschule Brandenburg}, address = {Brandenburg}, pages = {38 -- 48}, year = {2015}, language = {de} } @inproceedings{HascheIngwerCreutzburgetal.2017, author = {Hasche, Eberhard and Ingwer, Patrick and Creutzburg, Reiner and Schrader, Thomas and Laube, Frederick and Sigwarth, Timo}, title = {RED color spaces demystified - reverse engineering of RED gamma and RED color by spectral analysis of Xrite color charts and RED Scarlet-X Camera recording}, series = {Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications 2016 : IS \& T International Symposium on Electronic Imaging Science and Technology 2016 : San Francisco, California, USA, 14-18 February 2016}, booktitle = {Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications 2016 : IS \& T International Symposium on Electronic Imaging Science and Technology 2016 : San Francisco, California, USA, 14-18 February 2016}, editor = {Creutzburg, Reiner}, publisher = {Curran Associates, Inc.}, address = {Red Hook, NY}, isbn = {978-1-5108-4600-5}, year = {2017}, language = {en} } @inproceedings{Thiersl’OrteyeOrlowskietal.2015, author = {Thiers, Angelina and l'Orteye, Annett and Orlowski, Katja and Schrader, Thomas}, title = {Analyzing the Sensorimotor Training Using Wireless Sensors: Studying the Effects of Balance Boards with Different Dimensions of Instability}, series = {Sports Science Research and Technology Support : International Congress, icSPORTS 2013, Vilamoura, Algarve, Portugal, September 20-22, 2013. Revised Selected Papers}, booktitle = {Sports Science Research and Technology Support : International Congress, icSPORTS 2013, Vilamoura, Algarve, Portugal, September 20-22, 2013. Revised Selected Papers}, editor = {Cabri, Jan}, publisher = {Springer}, address = {Cham}, isbn = {978-331-91754-8-5}, doi = {10.1007/978-3-319-17548-5_5}, pages = {57 -- 71}, year = {2015}, language = {en} } @inproceedings{SigwarthLoeweBecketal.2015, author = {Sigwarth, Timo and L{\"o}we, Katharina and Beck, Eberhard and Pelchen, Lutz and Schrader, Thomas}, title = {Conceptual ontology of prospective risk analysis in medical environments - the OPT-Model-Ontology}, series = {2015 IEEE Seventh International Conference on Intelligent Computing and Information Systems (ICICIS'15) : Faculty of Commuter \& Information Sciences, Ain Shams University, Cairo, Egypt, 12-14 Dec. 2015}, booktitle = {2015 IEEE Seventh International Conference on Intelligent Computing and Information Systems (ICICIS'15) : Faculty of Commuter \& Information Sciences, Ain Shams University, Cairo, Egypt, 12-14 Dec. 2015}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-1950-2}, doi = {10.1109/IntelCIS.2015.7397202}, pages = {88 -- 93}, year = {2015}, language = {en} } @inproceedings{SchraderOrlowskiThiersetal.2014, author = {Schrader, Thomas and Orlowski, Katja and Thiers, Angelina and Schrader, Kerstin and l'Orteye, Annett}, title = {Analyzes of Influencing Factors to the Sensorimotor Training - Technical Support Systems in the Physiotherapy}, series = {Proceedings of the 2nd International Congress on Sports Sciences Research and Technology Support, 24. bis 26. Oktober 2014, Rom, Italien}, volume = {Vol. 1}, booktitle = {Proceedings of the 2nd International Congress on Sports Sciences Research and Technology Support, 24. bis 26. Oktober 2014, Rom, Italien}, publisher = {SciTePress, Science and Technology Publications}, address = {Set{\´u}bal, Portugal}, isbn = {978-989-758-057-4}, doi = {10.5220/0005093000450052}, pages = {45 -- 52}, year = {2014}, language = {en} } @article{LiefoldWagnerDuecketal.2016, author = {Liefold, Marius and Wagner, Dennis and D{\"u}ck, Michael Sebastian and G{\"o}cmez, E. and Kinberger, B. and Gr{\"u}ndel, P. and Gadegast, E. and Beck, Eberhard and Schrader, Thomas}, title = {Konzeption und Entwicklung von mobilen Hard- und Softwarekomponenten zur Verbesserung der Schwangerenvorsorge in L{\"a}ndern der 3. Welt}, series = {Geburtshilfe und Frauenheilkunde}, volume = {76}, journal = {Geburtshilfe und Frauenheilkunde}, doi = {10.1055/s-0036-1593060}, pages = {P197}, year = {2016}, language = {de} } @inproceedings{SchraderLoewePelchenetal.2015, author = {Schrader, Thomas and L{\"o}we, Katharina and Pelchen, Lutz and Beck, Eberhard}, title = {Prospective, knowledge based clinical risk analysis: The OPT-model}, series = {2015 IEEE Seventh International Conference on Intelligent Computing and Information Systems (ICICIS) : Faculty of Commuter \& Information Sciences, Ain Shams University, Cairo, Egypt, 12-14 Dec. 2015}, booktitle = {2015 IEEE Seventh International Conference on Intelligent Computing and Information Systems (ICICIS) : Faculty of Commuter \& Information Sciences, Ain Shams University, Cairo, Egypt, 12-14 Dec. 2015}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-1950-2}, doi = {10.1109/IntelCIS.2015.7397204}, pages = {94 -- 99}, year = {2015}, language = {en} } @inproceedings{HascheSchraderCreutzburg2017, author = {Hasche, Eberhard and Schrader, Thomas and Creutzburg, Reiner}, title = {Blackmagic Production Camera Raw Color Investigation by Spectral Analysis of Macbeth Color Charts}, series = {Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications 2017 : IS \& T International Symposium on Electronic Imaging Science and Technology 2017 : Burlingame, California, USA, 29 January-2 February 201}, booktitle = {Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications 2017 : IS \& T International Symposium on Electronic Imaging Science and Technology 2017 : Burlingame, California, USA, 29 January-2 February 201}, publisher = {Curran Associates, Inc.}, address = {Red Hook, NY}, isbn = {978-1-5108-4625-8}, pages = {22 -- 33}, year = {2017}, language = {en} } @article{OrlowskiWagnerl'Orteyeetal.2017, author = {Orlowski, Katja and Wagner, Dennis and l'Orteye, Annett and Ringk, Heike and Kohl, Verena and Schrader, Thomas}, title = {Analysing the activation of the plantar flexor muscles during treadmill walking}, series = {Gait \& Posture}, volume = {57}, journal = {Gait \& Posture}, number = {Supplement 1}, issn = {0966-6362}, doi = {10.1016/j.gaitpost.2017.06.377}, pages = {213 -- 214}, year = {2017}, language = {en} } @inproceedings{CraigFitzMiller2025, author = {Craig, Kevin and Fitz, Lukas R. G. and Miller, Kasey}, title = {IT Identity fostering User Innovation on Digital Platforms: The Role of Self-Esteem}, series = {AMCIS 2025, 31st Americas Conference on Information Systems, Montr{\´e}al, Canada, 2025}, booktitle = {AMCIS 2025, 31st Americas Conference on Information Systems, Montr{\´e}al, Canada, 2025}, publisher = {Association for Information Systems}, pages = {1 -- 9}, year = {2025}, abstract = {Digital platforms can grow by motivating users to explore new ways to use a wider range of affiliated products and services. This work explores the power of IT Identity to motivate such innovative use, through identity's ability to intrinsically motivate behavior. Data from 209 Amazon.com users indicates that IT Identity may cause Trying to Innovate with an IT, mediated by Self-Esteem.}, language = {en} } @article{SchraderTetzlaffBecketal.2020, author = {Schrader, Thomas and Tetzlaff, Laura and Beck, Eberhard and Mindt, Sebastian and Geiss, Friederike and Hauser, Katarina and Franken, Christian}, title = {Die {\"A}hnlichkeit von Medikamentennamen als m{\"o}gliche Ursache von Verwechslungen - eine Untersuchung von Daten aus der ambulanten Versorgung}, series = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, journal = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, publisher = {Elsevier}, issn = {1865-9217 (Print)}, doi = {10.1016/j.zefq.2020.01.006}, year = {2020}, language = {de} } @inproceedings{OrlowskiGraefeTetzlaffetal.2020, author = {Orlowski, Katja and Gr{\"a}fe, Gina and Tetzlaff, Laura and Schrader, Thomas and Beck, Eberhard}, title = {Individualized Computer-based Training for Elderly in Nursing Homes: A Pilot Study}, series = {Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 5: HEALTHINF, Valletta, Malta}, booktitle = {Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 5: HEALTHINF, Valletta, Malta}, publisher = {SciTePress - Science and Technology Publications, Lda.}, address = {Set{\´u}bal, Portugal}, isbn = {978-989-758-398-8}, doi = {10.5220/0009162106640669}, pages = {664 -- 669}, year = {2020}, language = {en} } @article{TetzlaffHeinrichSchadewitzetal.2022, author = {Tetzlaff, Laura and Heinrich, Andrea Sanguino and Schadewitz, Romy and Thomeczek, Christian and Schrader, Thomas}, title = {Die Analyse des CIRSmedical.de mittels Natural Language Processing}, series = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, journal = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, publisher = {Elsevier}, issn = {2212-0289}, doi = {10.1016/j.zefq.2021.12.002}, year = {2022}, language = {de} } @article{BeckSchraderTetzlaffetal.2018, author = {Beck, Eberhard and Schrader, Thomas and Tetzlaff, Laura and L{\"o}we, Katharina and Schr{\"o}der, Cornelia}, title = {Eine strukturierte Fallanalyse aus dem Critical Incident Reporting System der Bundes{\"a}rztekammer und Kassen{\"a}rztlichen Bundesvereinigung}, series = {Zeitschrift f{\"u}r Evidenz Fortbildung und Qualit{\"a}t im Gesundheitswesen}, volume = {133}, journal = {Zeitschrift f{\"u}r Evidenz Fortbildung und Qualit{\"a}t im Gesundheitswesen}, doi = {10.1016/j.zefq.2018.02.009}, pages = {24 -- 29}, year = {2018}, language = {de} } @article{LiefoldWagnerPokrakaetal.2018, author = {Liefold, Marius and Wagner, Dennis and Pokraka, Alexander and Schrader, Thomas}, title = {Low-Cost Medical Infrastructure: Triage as intelligent decision support}, series = {Electronic Imaging, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, journal = {Electronic Imaging, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/ISSN.2470-1173.2018.06.MOBMU-116}, pages = {116-1 -- 116-4}, year = {2018}, language = {en} } @article{SteinPilgermannWeberetal.2025, author = {Stein, Stefan and Pilgermann, Michael and Weber, Simon and Sedlmayr, Martin}, title = {Leveraging MDS2 and SBOM data for LLM-assisted vulnerability analysis of medical devices}, series = {Computational and Structural Biotechnology Journal}, volume = {28}, journal = {Computational and Structural Biotechnology Journal}, doi = {10.1016/j.csbj.2025.07.012}, pages = {267 -- 280}, year = {2025}, abstract = {This study investigated the use of a semi-automated, Retrieval-Augmented Generation (RAG)-based multi-agent architecture to analyze security-relevant data and assemble specialized exploitation paths targeting medical devices. The input dataset comprised device-specific sources, namely, the Manufacturer Disclosure Statement for Medical Device Security (MDS2) documents and Software Bills of Materials (SBOMs), enriched with public vulnerability databases, including Common Vulnerabilities and Exposures (CVE), Known Exploited Vulnerabilities (KEV), and Metasploit exploit records. The objective was to assess whether a modular, Large Language Model (LLM)-driven agent system could autonomously correlate device metadata with known vulnerabilities and existing exploit information to support structured threat modeling. The architecture follows a static RAG design based on predefined prompts and fixed retrieval logic, without autonomous agent planning or dynamic query adaptation. The developed Vulnerability Intelligence for Threat Analysis in Medical Security (VITAMedSec) system operates under human-prompted supervision and successfully synthesizes actionable insights and exploitation paths without requiring manual step-by-step input during execution. Although technically coherent results were obtained under controlled conditions, real-world validation remains a critical avenue for future research. This study further discusses the dual-use implications of such an agent-based framework, its relevance to patient safety in medical device cybersecurity, and the broader applicability of the proposed architecture to other critical infrastructure sectors. These findings emphasize both the technical potential and ethical responsibility for applying semi-automated AI workflows in medical cybersecurity contexts.}, language = {en} } @article{KollathHajduDegenetal.2025, author = {Koll{\´a}th, Zolt{\´a}n and Hajdu, Tam{\´a}s and Degen, Tobias and Jechow, Andreas and Sztakovics, J{\´a}nos}, title = {Conversion between measurement units used for night sky quality assessment with multispectral (RGB) cameras}, series = {Journal of Quantitative Spectroscopy and Radiative Transfer}, volume = {347}, journal = {Journal of Quantitative Spectroscopy and Radiative Transfer}, publisher = {Elsevier}, doi = {10.1016/j.jqsrt.2025.109636}, pages = {1 -- 10}, year = {2025}, abstract = {In recent years, many studies have shown that light pollution adversely affects wildlife, ecosystems, and human well-being. To assess and mitigate these impacts, it is crucial that measurements of night sky quality are reliable and comparable across sites and instruments. However, the lack of standardised night sky brightness metrology and the use of a wide variety of measurement instruments with varying spectral responsivity and field-specific measurement units hinder meaningful comparison. We collected night sky spectra from 44 nights at dark locations (existing and proposed dark sky parks). Based on this observational dataset, we created a larger random set of spectra. These data served to fit conversion parameters for a wide variety of units. We demonstrate that RGB cameras, when used as multichannel measuring devices, enable the retrieval of measurements that facilitate conversions between different units. Furthermore, even airglow can be quantified from a given measurement, enabling the determination of oxygen and sodium emission line contributions. Since this contribution is not negligible, quantitative measurements of its magnitude are crucial for accurately assessing light pollution at dark-sky sites. Using our spectral measurement database, we constructed the most probable transformation from the cameras' R, G, and B channel 𝑑𝑠𝑢 values to other units, such as the astronomical Bessel V band magnitudes. The unit conversion formulas provided in this paper are valid for mildly polluted sites (existing and proposed dark sky places), in the 21-22 magV∕arcsec2 range.}, language = {de} } @article{EbadAllahGuterdingVarmaetal.2025, author = {Ebad-Allah, Jihaan and Guterding, Daniel and Varma, Meera and Diware, Mangesh and Ganorkar, Shraddha and Jeschke, Harald and Kuntscher, Christine}, title = {Near room-temperature ferromagnetism from double exchange in the van der Waals material CrGeTe3: Evidence from optical conductivity under pressure}, series = {Physical Review B}, volume = {111}, journal = {Physical Review B}, publisher = {American Physical Society}, doi = {10.1103/PhysRevB.111.L140402}, year = {2025}, abstract = {The unexpected discovery of intrinsic ferromagnetism in layered van der Waals materials has sparked interest in both their fundamental properties and their potential for novel applications. Recent studies suggest near roomtemperature ferromagnetism in the pressurized van der Waals crystal CrGeTe3. We perform a comprehensive experimental and theoretical investigation of magnetism and electronic correlations in CrGeTe3, combining broad-frequency reflectivity measurements with density functional theory and dynamical mean-field theory calculations. Our experimental optical conductivity spectra trace the signatures of developing ferromagnetic order and of the insulator-to-metal transition (IMT) as a function of temperature and hydrostatic pressure. With increasing pressure, we observe the emergence of a midinfrared feature in the optical conductivity, indicating the development of strong orbital-selective correlations in the high-pressure ferromagnetic phase. We find a distinct relationship between the plasma frequency and Curie temperature of CrGeTe3, which strongly suggests that a double-exchange mechanism is responsible for the observed near room-temperature ferromagnetism. Our results clearly demonstrate the existence of a charge-transfer gap in the metallic phase, ruling out its previously conjectured collapse under pressure.}, language = {en} } @inproceedings{VielhauerLoewePilgermann2025, author = {Vielhauer, Claus and Loewe, Fabian and Pilgermann, Michael}, title = {Towards Modeling Hidden \& Steganographic Malware Communication based on Images}, series = {IH\&MMSEC '25: ACM Workshop on Information Hiding and Multimedia Security, San Jose, CA, USA, 2025}, booktitle = {IH\&MMSEC '25: ACM Workshop on Information Hiding and Multimedia Security, San Jose, CA, USA, 2025}, doi = {10.1145/3733102.3733152}, pages = {52 -- 63}, year = {2025}, abstract = {Recently, an increasing number of IT security incidents involving malware, which makes use of hidden and steganographic channels for malicious communication (a.k.a. as "stegomalware"), can be observed in the wild. Especially the use of images to hide malicious code is rising. In consideration of this shift, a new model is proposed in this paper, which aims to help security professionals to identify and analyze incidents revolving around steganographic malware in the future. The model focuses on practical aspects of steganalysis of communication data to elaborate linking properties to previous code analysis knowledge. The model features two distinct roles that interact with a knowledge base which stores malware features and helps building a context for the incident. For evaluation, two image steganography malware types are chosen from popular databases (malpedia and MITRE ATT\&CK®), which are analyzed in multiple steps including steganalysis and code analysis. It is conceptually shown, how the extracted features can be stored in a knowledge base for later use to identify stegomalware from communication data without the need of a thorough code analysis. This allows to uncover previously hidden meta-information about the examined malicious programs, enrich the incident's forensic context traces and thus allows for thorough forensic insights, including attribution and improved preventive security measures in the future.}, language = {en} } @article{NeubertSchuelerUllrichetal.2025, author = {Neubert, Tom and Schueler, Eric and Ullrich, Henning and Buxhoidt, Laura and Vielhauer, Claus}, title = {Extended Analysis, Detection and Attribution of Steganographic Embedding Methods in Network Data of Industrial Controls Systems}, series = {International Journal on Advances in Security}, volume = {18}, journal = {International Journal on Advances in Security}, number = {1\&2}, publisher = {IARIA}, pages = {112 -- 122}, year = {2025}, abstract = {Since the last decade, it is well known that Industrial Control Systems (ICS) are under attack and attackers nowadays increasingly use stealthy malware (i.e., stegomalware) imple- mented by steganographic embedding methods to in- and exfil- trate hidden information. Unfortunately, current mechanisms to distinguish between network steganographic embedding methods and embedded message types need improvement for a potential attribution of attackers. For the analysis of steganographic em- bedding methods which are utilized in stealthy malware, the work presented in this paper builds upon a state-of-the-art analysis testbed proposed earlier, which is recapitulated here. It offers the opportunity to analyze network steganographic embedding methods in ICS to elaborate methods to detect and distinguish between them to gain forensic information for attribution of potential attackers and their methods. In this work, we introduce a novel machine learning based approach to distinguish between five selected embedding methods and two embedded message types. We use the analysis testbed to evaluate and determine the accuracy of the novel approach compared to a state-of-the-art approach. In our extensive evaluation, our novel approach has shown to be able to distinguish between network steganographic embedding methods with an average accuracy of 85.7\%, which is an improvement in comparison to the state-of-the-art by +5.9\% and enables a more accurate attribution of attackers. Additionally, the novel approach is able to improve the accuracy of distinction between embedding method and embedded message type by +9.3\% in comparison to the evaluated state-of-the-art approach.}, language = {en} } @inproceedings{FitzVeldyaevaKunzeetal.2025, author = {Fitz, Lukas R. G. and Veldyaeva, Ekaterina and Kunze, Adrian and Scheeg, Michaela and Scheeg, Jochen}, title = {aiSnoop: An AI-assisted Social Listening Tool for SME Managers}, series = {31st Americas Conference on Information Systems, AMCIS 2025, Montr{\´e}al, Canada, 2025}, booktitle = {31st Americas Conference on Information Systems, AMCIS 2025, Montr{\´e}al, Canada, 2025}, publisher = {Association for Information Systems}, pages = {1 -- 11}, year = {2025}, abstract = {With growing popularity of social networks and online brand engagement, small and medium-sized enterprises (SME) are facing challenges in leveraging business value effectively from interactions with their online communities. Social listening tools, enhanced by artificial intelligence (AI), help enterprises to better understand customer needs and trends by synthesizing engagement and interaction data from various channels into actionable insights. However, prevalent tools widely appear too costly, inaccessible and complex to handle for SME managers. In response, we present this article on the design of "aiSnoop", an AI-assisted social listening tool for SME managers. The article describes how the tool was developed, demonstrated and evaluated as a design artifact with an SME-contextualized design science research approach. We find that automation, usability and transparency, and advanced AI integration are important social listening tool capabilities for SMEs, contributing to the broader discussion on AI-assisted decision-support system design from an SME-and practice-oriented research perspective.}, language = {en} } @article{SchulzJander2025, author = {Schulz, Theresa and Jander, Kai}, title = {Dynamic plan generation with LLMs: automatic execution of abstract BDI-agent goals}, series = {International Journal of Parallel, Emergent and Distributed Systems}, journal = {International Journal of Parallel, Emergent and Distributed Systems}, publisher = {Taylor\&Francis}, doi = {10.1080/17445760.2025.2541956}, pages = {1 -- 21}, year = {2025}, abstract = {Belief-Desire-Intention (BDI) agents enable complex behavior in multi-agent systems by defining goals and implementing plans to achieve their goals. Typically, developers pre-define plans, which limits adaptability. This paper presents an approach for BDI agents to dynamically generate plans using large language models (LLMs), exploiting contextual information such as goals, beliefs, and structural data. We evaluate the feasibility, reliability, and limitations of this method, and discuss its implications for the automation of BDI-based agents. Our results suggest that LLMs can enhance agent autonomy by reducing the need for manual plan definition, while maintaining goal-oriented reasoning.}, language = {en} } @article{VinkenGrimmBaatoutetal.2025, author = {Vinken, Mathieu and Grimm, Daniela and Baatout, Sarah and Baselet, Bjorn and Beheshti, Afshin and Braun, Markus and Carstens, Anna Catharina and Casaletto, James A. and Cools, Ben and Costes, Sylvain V. and De Meulemeester, Phoebe and Doruk, Bartu and Eyal, Sara and Ferreira, Miguel J. S. and Miranda, Silvana and Hahn, Christiane and Akyuz, Sinem Helvacioglu and Herbert, Stefan and Krepkiy, Dmitriy and Lichterfeld, Yannik and Liemersdorf, Christian and Marcus, Kr{\"u}ger and Marchal, Shannon and Ritz, Jette and Schmakeit, Theresa and Stenuit, Hilde and Tabury, Kevin and Trittel, Torsten and Wehland, Markus and Zhang, Yu Shrike and Putt, Karson S. and Zhang, Zhong-Yin and Tagle, Danilo A.}, title = {Taking the 3Rs to a higher level: replacement and reduction of animal testing in life sciences in space research}, series = {Biotechnology advances}, volume = {81}, journal = {Biotechnology advances}, number = {7/8}, publisher = {Elsevier}, doi = {10.1016/j.biotechadv.2025.108574}, year = {2025}, abstract = {Human settlements on the Moon, crewed missions to Mars and space tourism will become a reality in the next few decades. Human presence in space, especially for extended periods of time, will therefore steeply increase. However, despite more than 60 years of spaceflight, the mechanisms underlying the effects of the space environment on human physiology are still not fully understood. Animals, ranging in complexity from flies to monkeys, have played a pioneering role in understanding the (patho)physiological outcome of critical environmental factors in space, in particular altered gravity and cosmic radiation. The use of animals in biomedical research is increasingly being criticized because of ethical reasons and limited human relevance. Driven by the 3Rs concept, calling for replacement, reduction and refinement of animal experimentation, major efforts have been focused in the past decades on the development of alternative methods that fully bypass animal testing or so-called new approach methodologies. These new approach methodologies range from simple monolayer cultures of individual primary or stem cells all up to bioprinted 3D organoids and microfluidic chips that recapitulate the complex cellular architecture of organs. Other approaches applied in life sciences in space research contribute to the reduction of animal experimentation. These include methods to mimic space conditions on Earth, such as microgravity and radiation simulators, as well as tools to support the processing, analysis or application of testing results obtained in life sciences in space research, including systems biology, live-cell, high-content and real-time analysis, high-throughput analysis, artificial intelligence and digital twins. The present paper provides an in-depth overview of such methods to replace or reduce animal testing in life sciences in space research.}, language = {en} } @article{SchumannStoilovaBortolettoetal.2025, author = {Schumann, Sophia and Stoilova, Velizara and Bortoletto, Enrico and Piva, Elisabetta and Pacchini, Sara and Mozzi, Gloria and Jechow, Andreas and Marion, Andrea and Bertotto, Daniela and Erlandson, Ann and H{\"o}lker, Franz and Greenberg, Larry and Santovito, Gianfranco}, title = {Impact of artificial light at night (ALAN) on cardiac function and acute oxidative stress physiology in migratory brown trout smolts}, series = {Environmental Pollution}, journal = {Environmental Pollution}, number = {381}, publisher = {Elsevier}, doi = {10.1016/j.envpol.2025.126593}, pages = {1 -- 9}, year = {2025}, abstract = {Light pollution poses significant ecological challenges for nocturnal animals reliant on natural light for migration, orientation, and circadian rhythms. The physiological effects of abrupt exposure to artificial light at night (ALAN) on migratory fish, such as the light experienced passing near illuminated infrastructures, remain poorly understood. This study investigates the physiological responses of brown trout (Salmo trutta) smolts to low-intensity (0.02 lx) and short-term (30 s) ALAN, simulating nocturnal migration light conditions near illuminated bridges. To evaluate the influence of social dynamics, trout were tested individually (solitary) or in groups of six. Using continuous cardiac monitoring with data storage tags, alongside analyses of oxidative stress markers and adenylate kinase (AK) activity in the heart, we identified distinct patterns of physiological responses. Solitary fish exhibited significant heart rate variability (HRV) increases following repeated ALAN exposure, suggesting impaired physiological regulation under repeated ALAN exposure. In contrast, trout in groups displayed consistently lower HRV over the entire 90-min experiment, implying that social dynamics likely influenced a sustained oxidative stress response, corroborated by increased AK activity. Oxidative stress markers further reflected social effects, with significant upregulation of key antioxidant enzymes (sod1, sod2, gpx1, gpx4) and elevated lipid peroxidation, identifying lipids as primary oxidative targets. The observed divergence between superoxide dismutase (SOD) activity and sod gene expression suggests adaptive post-transcriptional regulation to maintain redox balance under combined environmental and social stress. These findings reveal that social dynamics under ALAN can amplify physiological stress, potentially affecting migratory outcomes.}, language = {en} } @article{FitzScheeg2025, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Alternative digital platforms: comparative analysis through the lens of Corporate Aikido}, series = {Information Systems and e-Business Management}, journal = {Information Systems and e-Business Management}, publisher = {Springer}, doi = {10.1007/s10257-025-00703-8}, pages = {1 -- 22}, year = {2025}, abstract = {Competing with dominant players in the digital platform (DP) economy is an increasingly complex and expensive endeavor for alternative digital platform (ADP) providers trying to disrupt established platform ecosystems. Nevertheless, ADPs position themselves deliberately in the competitive space of large competitors, targeting customer groups whose values and mindsets differ from mainstream DPs. Although there are many examples to find in practice, the variety of ADPs across different DP ecosystems and industries, especially in regards of strategic objectives, directions and characteristics, has not been researched in-depth yet. Based on a systematic, practice-based artifact review, this paper analyses and compares 105 ADPs in the competitive space of dominant DP ecosystem players. The study utilizes the theory of Corporate Aikido as an analytical framework, mapping the strategic elements of overthrowing established value propositions and turning a competitors' strengths into weaknesses. Our findings indicate that privacy- and security-awareness, empowerment and inclusivity, premium quality and curation, open source and free access, uncensored, transparent and decentralized platforms as well as ecological and climate-friendly offers shape the landscape of alternative approaches in today's DP economy. The results are subsequently discussed, yielding managerial implications and future opportunities for DP research.}, language = {en} } @inproceedings{TeutenbergFitzScheeg2025, author = {Teutenberg, Lukas and Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Current Design Practices in Applied Augmented Reality Research: A Methodological Review}, series = {Computer-Human Interaction Research and Applications. CHIRA, 2024}, booktitle = {Computer-Human Interaction Research and Applications. CHIRA, 2024}, publisher = {Springer}, doi = {10.1007/978-3-031-82633-7_9}, pages = {131 -- 146}, year = {2025}, abstract = {Successful Augmented Reality (AR) solutions require high technology acceptance and desire among users. Applying appropriate design methodologies can enhance the development of desirable AR systems and help to streamline design research projects. This article presents a methodological literature review of 58 pertinent articles, exploring the representation of methodological design frameworks in currently applied AR research practice. In result, User-Centered Design was identified most frequently by a large margin. Though, it could be observed that most articles from the field of applied AR only marginally describe any design processes. Moreover, Human-Centered Design, Participatory Design and Value Sensitive Design were only scantily represented; less than half of the papers followed a Design Science Research or Action Design Research approach. Several implications for applied research and practice are derived from these findings and discussed together with future research opportunities. Overall, this study contributes to the refinement of methodological design practice in the field of applied AR research.}, language = {en} } @article{PrinzOrlowskiBecketal.2025, author = {Prinz, Alexander and Orlowski, Katja and Beck, Eberhard and Witte, Kerstin}, title = {Serious Games for Seniors With Dementia: A Pilot Study}, series = {Journal of Applied Gerontology}, volume = {2025}, journal = {Journal of Applied Gerontology}, doi = {10.1177/07334648251350846}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:522-opus4-33440}, pages = {1 -- 11}, year = {2025}, abstract = {Dementia, marked by cognitive decline, significantly impacts daily life. With global prevalence rising, traditional treatments manage symptoms but have side effects and offer no cure. Non-pharmacological interventions, like serious games, are gaining importance. This study assesses the feasibility and benefits of serious games for people with mild to moderate dementia over a 10-week intervention. Sixty-one patients were recruited, with 35 completing the study. The intervention included six games focusing on physical and cognitive training. Outcome measures were motor function, cognitive assessments, quality of life, and depression. Results showed significant improvements in dynamic balance (p = .013) but no significant changes in other measures. The findings suggest that serious games are feasible and can improve motor functions like balance. However, short intervention periods may limit their impact on cognitive function and quality of life. Longer interventions and personalized game designs are recommended for greater benefits.}, language = {en} } @article{FroschLindauer2025, author = {Frosch, Katharina and Lindauer, Friederike}, title = {Learning With Short Bursts: How Effectively Can We Build Competencies in Climate Change-Related Areas Based on Microlearning?}, series = {European Journal of Education}, volume = {60}, journal = {European Journal of Education}, number = {2}, publisher = {Wiley}, doi = {10.1111/ejed.70088}, pages = {1 -- 17}, year = {2025}, abstract = {The study examines the effectiveness of microlearning in developing the capacity to address climate change and adapt to environmental challenges. Conducted as an online field experiment with 140 participants, the study focused on the impacts of smartphone use as an illustrative learning domain for education in climate change-related areas. Using a pre-post research design and simultaneous equation models, the study found improvements in knowledge retention, with a median increase of 38\%. The results indicated that the brief microlearning units also promoted sustainability action competencies, such as confidence in one's influence and willingness to act sustainably. This suggests that higher-order learning processes were also triggered, although to a much lesser extent. Furthermore, learner satisfaction was identified as a mediating variable for these positive outcomes. The study concludes that short bursts of knowledge delivered through microlearning activities can be used alongside traditional training methods to build the critical skills needed for initiatives such as the EU Green Deal.}, language = {en} } @article{KalinkatJechowSchroeretal.2025, author = {Kalinkat, Gregor and Jechow, Andreas and Schroer, Sibylle and H{\"o}lker, Franz}, title = {Nocturnal pandas: conservation umbrellas protecting nocturnal biodiversity}, series = {Trends in Ecology \& Evolution}, volume = {40}, journal = {Trends in Ecology \& Evolution}, number = {8}, publisher = {Elsevier}, doi = {10.1016/j.tree.2025.05.006}, pages = {736 -- 739}, year = {2025}, abstract = {Light pollution is an emerging ecological threat. To mitigate its negative consequences, creative inter- and transdisciplinary solutions and societal interactions are needed. To this end, we introduce nocturnal umbrella species representative of light-sensitive biodiversity whose protection will safeguard vital ecosystem services and a wide range of co-occurring species.}, language = {en} } @article{DietenbergerJechowSannetal.2025, author = {Dietenberger, Manuel and Jechow, Andreas and Sann, Manuela and H{\"o}lker, Franz}, title = {Shedding light on dark taxa: exploring a cryptic diversity of parasitoid wasps affected by artificial light at night}, series = {Scientific Reports}, volume = {15}, journal = {Scientific Reports}, doi = {10.1038/s41598-025-88111-3}, pages = {1 -- 12}, year = {2025}, abstract = {Artificial light at night (ALAN) contributes to the globally observed insect decline. ALAN attracts nocturnal insects from their native ecosystems and disturbs their functions in the food web. Road lights in this context are ubiquitous and relevant ALAN sources that are often not considered in conservation approaches. In a previous study we showed that shielded LED road lights are suited to be part of conservation measures by effectively reducing the attraction of nocturnal insects. Here we show that this positive effect holds true for parasitoid wasps in an experimental BACI design (Before-After-Control-Impact). Combining morphological with molecular and phylogenetic analyses, we identified 106 individuals (62 morphotypes) of a minimum of 45 genera out of 13 Hymenoptera families. We were able to identify 21 species, 11 of which are newly reported in Southern Germany (Baden-W{\"u}rttemberg). Further combining knowledge on life history and host appearance from our data and the literature, we discuss potential impacts of ALAN ranging from an influence on nocturnal pollination via parasitoid pressure on moth species and biological control of invasive pest species to tritrophic interactions between primary and secondary parasitoids. We conclusively think that shielded LED road lights will reduce the ecological impact of ALAN on parasitoid wasps in a large and undescribed number of taxa with different host associations, likely affecting associated ecosystem functions such as biological control.}, language = {en} } @article{FitzScheeg2025, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Coping Practices of Small- and Medium-Sized Enterprises Facing Power Asymmetry in Digital Platform Business}, series = {Strategic Change}, journal = {Strategic Change}, publisher = {Wiley}, doi = {10.1002/jsc.2657}, pages = {1 -- 21}, year = {2025}, abstract = {Digital platform (DP) enterprises have risen to the top of the global economy by inverting traditional business models. They earn money through matchmaking, transaction facilitation, and efficient orchestration of other stakeholders' resources. Small- and medium-sized enterprises (SMEs) play a decisive role in this success story: they offer products and services on many leading DPs and thereby feed platform networks as sellers and suppliers. On the other hand, while DPs enable SMEs to reach new customers and outsource costly managerial tasks, many SMEs struggle with the negative consequences of asymmetric power dynamics and dependency risks in platform business. This paper analyzes 14 cases of SMEs that face power asymmetry as DP value providers, unraveling challenges encountered and coping practices employed in this situation. The findings reveal that power asymmetry between dominant DPs and SMEs creates significant challenges, including exploitative relationships, loss of autonomy, surveillance pressures, and devaluation of SME contributions, while SMEs cope through disintermediation, multi-homing, individual resistance tactics, and striving for more equitable DP models. Moreover, three relationality types are identified: DPs being SMEs' "partners," "tools," and "necessary evil." This article offers a new perspective on boundaries of SME strategies in the DP economy and contributes with empirical insights to the advancing field of entrepreneurial platform research.}, language = {en} } @inproceedings{VeldyaevaFitzScheegetal.2025, author = {Veldyaeva, Ekaterina and Fitz, Lukas R. G. and Scheeg, Michaela and Scheeg, Jochen}, title = {Unlocking AI for SMEs: How an Educational Escape Room Shapes Perceptions towards Technology Adoption Decision-Making}, series = {Proceedings of the 58th Hawaii International Conference on System Sciences, Waikoloa, HI, USA, 2025}, booktitle = {Proceedings of the 58th Hawaii International Conference on System Sciences, Waikoloa, HI, USA, 2025}, pages = {4905 -- 4914}, year = {2025}, abstract = {Facing modern challenges of digital transformation, small and medium-sized enterprises (SMEs) need to ensure informed and strategic decision-making before adopting new digital technology. This study builds upon Action Design Research (ADR) on educational escape room design targeting SME practitioners in technology adoption decision-making. We hypothesize that the game experience influences SMEs' artificial intelligence (AI) adoption decisions regarding technology-, organization- and environment-related perceptions and evaluate the survey data of 70 participants, who are SME owners or members. According to the results, the game-based approach was well-received. Engagement in the game positively influenced participants' affective state and improved self-reflection. The experience influenced participants' perceptions of AI's transformative potential. In order to facilitate easier transfer to different personal business contexts, future design iterations will include more process-neutral AI applications. The study contributes to research on game-based knowledge transfer in organizational contexts, providing insightful results and encouraging further exploration in this emerging field.}, language = {en} } @article{ScharfGuterdingHenetal.2025, author = {Scharf, Gili and Guterding, Daniel and Hen, Bar and Sarte, Paul M. and Ortiz, Brenden R. and Rozenberg, Gregory Kh. and Holder, Tobias and Wilson, Stephen D. and Jeschke, Harald O. and Ron, Alon}, title = {Pressure tuning of intrinsic and extrinsic sources to the anomalous Hall effect in CrGeTe3}, series = {Physical Review Research}, volume = {7}, journal = {Physical Review Research}, number = {1}, publisher = {APS}, doi = {10.1103/PhysRevResearch.7.013127}, pages = {1 -- 8}, year = {2025}, abstract = {The integrated Berry curvature is a geometric property that has dramatic implications for material properties. This study investigates the integrated Berry curvature and other contributions to the anomalous Hall effect in CrGeTe3 as a function of pressure. The anomalous Hall effect is absent in the insulating phase of CrGeTe3 and evolves with pressure in a domelike fashion as pressure is applied. The dome's edges are characterized by Fermi surface deformations, manifested as mixed electron and hole transport. We corroborate the presence of bipolar transport using ab initio calculations, which also predict a nonmonotonic behavior of the Berry curvature as a function of pressure. Quantitative discrepancies between our calculations and experimental results indicate that additional scattering mechanisms, which are also strongly tuned by pressure, contribute to the anomalous Hall effect in CrGeTe3.}, language = {en} } @inproceedings{PepeLasenbyBuchholz2024, author = {Pepe, Alberto and Lasenby, Joan and Buchholz, Sven}, title = {CGAPoseNet+GCAN: A Geometric Clifford Algebra Network for Geometry-aware Camera Pose Regression}, series = {Winter Conference on Applications of Computer Vision, Waikoloa, Hawaii, US, 2024}, booktitle = {Winter Conference on Applications of Computer Vision, Waikoloa, Hawaii, US, 2024}, publisher = {IEEE}, doi = {10.1109/WACV57701.2024.00646}, pages = {6593 -- 6603}, year = {2024}, abstract = {We introduce CGAPoseNet+ GCAN, which enhances CGAPoseNet, an architecture for camera pose regression, with a Geometric Clifford Algebra Network (GCAN). With the addition of the GCAN we obtain a geometry-aware pipeline for camera pose regression from RGB images only. CGAPoseNet employs Clifford Geometric Algebra to unify quaternions and translation vectors into a single mathematical object, the motor, which can be used to uniquely describe camera poses. CGAPoseNet solves the issue of balancing rotation and translation components in the loss function, and can obtain comparable results to other approaches without the need of expensive tuning of the loss function or additional information about the scene, such as 3D point clouds, which might not always be available. CGAPoseNet, however, like several approaches in the literature, only learns to predict motor coefficients, and it is unaware of the mathematical space in which predictions sit in and of their geometrical meaning. By leveraging recent advances in Geometric Deep Learning, we modify CGAPoseNet with a GCAN: proposals of possible motor coefficients associated with a camera frame are obtained from the InceptionV3 backbone, and the GCAN downsamples them to a single motor through a sequence of layers that work in G_ 4, 0. The network is hence geometry-aware, has multivector-valued inputs, weights and biases and preserves the grade of the objects that it receives in input. CGAPoseNet+ GCAN has almost 4 million fewer trainable parameters, it reduces the average rotation error by 41\% and the average translation error by 8.8\% compared to CGAPoseNet. Similarly, it reduces rotation and translation errors by 32.6\% and 19.9\%, respectively, compared to the best performing PoseNet strategy. CGAPoseNet+ GCAN reaches the state-of-the-art results on 13 commonly employed datasets. To the best of our knowledge, it is the first experiment in GCANs applied to the problem of camera pose regression.}, language = {en} } @inproceedings{WangNitzeHofstedtetal.2024, author = {Wang, Tingting and Nitze, Andr{\´e} and Hofstedt, Petra and L{\"o}ffler, Sven and Hennig, Silvia and Klinge, Alexander}, title = {Technische Machbarkeit von l{\"a}ndlichem On-Demand-Verkehr: Anforderungen an eine Open-Source-Software-Architektur}, series = {24. Nachwuchswissenschaftler:innenkonferenz}, booktitle = {24. Nachwuchswissenschaftler:innenkonferenz}, number = {3}, publisher = {Hochschule Mittweida}, address = {Mittweida}, issn = {1437-7624}, doi = {10.48446/opus-15430}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:mit1-opus4-154308}, pages = {361 -- 366}, year = {2024}, abstract = {On-Demand-Verkehr bezeichnet Mobilit{\"a}tsangebote, die auf Bestellung verf{\"u}gbar sind. Ziel ist es, durch flexible Mobilit{\"a}tsangebote L{\"u}cken im l{\"a}ndlichen {\"o}ffentlichen Personennahverkehr ({\"O}PNV) zu schließen, insbesondere in d{\"u}nn besiedelten R{\"a}umen und zu Randzeiten des Tages. Die Einf{\"u}hrung solcher Dienste gestaltet sich f{\"u}r viele Kommunen jedoch aufgrund der hohen Lizenzgeb{\"u}hren f{\"u}r propriet{\"a}re Software als {\"a}ußerst schwierig, insbesondere in strukturschwachen Regionen, die solche Dienste besonders ben{\"o}tigen. Im Rahmen des Projekts "Open-Source-Software f{\"u}r l{\"a}ndlichen On-Demand-Verkehr" (OSLO) wurde die Umsetzbarkeit einer niedrigschwelligen Open-Source-L{\"o}sung gepr{\"u}ft. Diese L{\"o}sung soll langfristig in die Open-Source-Mobilit{\"a}tsplattform bbnavi integriert werden, um die Nutzung vorhandener Mobilit{\"a}tsdaten zu erleichtern, Interoperabilit{\"a}t zu gew{\"a}hrleisten und die Anpassung an andere Regionen zu vereinfachen. Das Konzept beinhaltet eine Software-Architektur, einen speziell f{\"u}r den l{\"a}ndlichen Nahverkehr entwickelten intermodalen Routing-Algorithmus und ein Betriebs- und Organisationsmodell ([1]). In diesem Beitrag wird beschrieben, wie eine effiziente Software-Architektur f{\"u}r das OSLO-Projekt entworfen wurde. Die zentralen Themen beinhalten die Strukturierung der Komponenten, die Anwendung von GTFS-Flex-V2, die Integration des angepassten Routing-Algorithmus sowie die Einbindung externer Schnittstellen.}, subject = {Open Source}, language = {de} } @unpublished{PepeLasenbyBuchholz2024, author = {Pepe, Alberto and Lasenby, Joan and Buchholz, Sven}, title = {STAResNet: A Network in Spacetime Algebra to solve Maxwell's PDEs}, series = {arXiv}, journal = {arXiv}, publisher = {arXiv}, pages = {1 -- 17}, year = {2024}, abstract = {We introduce STAResNet, a ResNet architecture in Spacetime Algebra (STA) to solve Maxwell's partial differential equations (PDEs). Recently, networks in Geometric Algebra (GA) have been demonstrated to be an asset for truly geometric machine learning. In [1], GA networks have been employed for the first time to solve partial differential equations (PDEs), demonstrating an increased accuracy over real-valued networks. In this work we solve Maxwell's PDEs both in GA and STA employing the same ResNet architecture and dataset, to discuss the impact that the choice of the right algebra has on the accuracy of GA networks. Our study on STAResNet shows how the correct geometric embedding in Clifford Networks gives a mean square error (MSE), between ground truth and estimated fields, up to 2.6 times lower than than obtained with a standard Clifford ResNet with 6 times fewer trainable parameters. STAREsNet demonstrates consistently lower MSE and higher correlation regardless of scenario. The scenarios tested are: sampling period of the dataset; presence of obstacles with either seen or unseen configurations; the number of channels in the ResNet architecture; the number of rollout steps; whether the field is in 2D or 3D space. This demonstrates how choosing the right algebra in Clifford networks is a crucial factor for more compact, accurate, descriptive and better generalising pipelines.}, language = {en} } @inproceedings{Levina2024, author = {Levina, Olga}, title = {Incorporating Ethical Aspects in Information Systems Requirements Engineering}, series = {Perspectives in Business Informatics Research, 23rd International Conference on Business Informatics Research, BIR 2024, Prag, Tschechien, September 11-13, 2024}, booktitle = {Perspectives in Business Informatics Research, 23rd International Conference on Business Informatics Research, BIR 2024, Prag, Tschechien, September 11-13, 2024}, publisher = {Springer}, doi = {10.1007/978-3-031-71333-0_10}, pages = {153 -- 161}, year = {2024}, abstract = {Ethical considerations in software requirements engineering are a critical but often overlooked aspect of the software development process. However, requests for transparency and autonomy in the way IT artefacts are designed, described, used, applied and integrated in the everyday life are getting more pressing within the society. In this research, the process of software engineering is taken as an illustrative model for the proactive incorporation of ethical principles in the system design within the design of a software artefact. Specifically, the phase of requirements elicitation and analysis are expanded with ethical aspects, since that is where the first steps of the software construction as an artefact are initiated and the first common ground of understanding is achieved. Being rooted in the security engineering, the SQUARE process is expanded to provide a basic structure for incorporating of ethical aspects into software design. By doing so, the social and moral values become central to the design and development of new technologies.}, language = {en} } @incollection{Kitzelmann2024, author = {Kitzelmann, Emanuel}, title = {Lernen mit Neuronalen Netzen}, series = {Furbach, U., Kitzelmann, E., Michaeli, T., Schmid, U. (Hrsg.) K{\"u}nstliche Intelligenz f{\"u}r Lehrkr{\"a}fte.}, booktitle = {Furbach, U., Kitzelmann, E., Michaeli, T., Schmid, U. (Hrsg.) K{\"u}nstliche Intelligenz f{\"u}r Lehrkr{\"a}fte.}, publisher = {Springer}, doi = {10.1007/978-3-658-44248-4_5}, pages = {53 -- 67}, year = {2024}, abstract = {Sitz der menschlichen Intelligenz ist das Gehirn. Was l{\"a}ge also n{\"a}her, als Erkenntnisse aus der Hirnforschung f{\"u}r die Erzeugung k{\"u}nstlicher Intelligenz zu nutzen? K{\"u}nstliche neuronale Netze simulieren in einer vereinfachten und abgewandelten Form den grundlegenden Aufbau des Gehirns und sind als eine leistungsf{\"a}hige Variante des maschinellen Lernens vielseitig einsetzbar, um komplexe Funktionen, z. B. in der Bild- und Sprachverarbeitung, aus großen Mengen von Daten zu lernen. Viele aktuelle und Aufsehen erregende Anwendungen der k{\"u}nstlichen Intelligenz - leistungsf{\"a}hige ChatBots und Bildgeneratoren, Bilderkennung in Fahrassistenzsystemen, die Erkennung von Krankheitsbildern in der bildgebenden Diagnostik, Prognosen im Finanzwesen und viele mehr - beruhen auf k{\"u}nstlichen neuronalen Netzen. Dieses Kapitel behandelt den Grundaufbau eines einzelnen k{\"u}nstlichen Neurons und eines mehrschichtigen neuronalen Netzes. Es wird erkl{\"a}rt, wie ein neuronales Netz Eingaben verarbeitet und wie es mit Daten trainiert werden kann, um eine bestimmte Funktion auszuf{\"u}hren.}, language = {de} } @inproceedings{KerstenBuzinHirsch2024, author = {Kersten, Philipp and Buzin, Johannes and Hirsch, S{\"o}ren}, title = {Wireless Sensor Nodes for Condition Based Maintenance in Railway Systems}, series = {IEEE Sensors Conference, Kobe, Japan, 2024}, booktitle = {IEEE Sensors Conference, Kobe, Japan, 2024}, publisher = {IEEE}, doi = {10.1109/SENSORS60989.2024.10784508}, pages = {1 -- 4}, year = {2024}, abstract = {Ensuring the reliability, safety, and efficiency of railway systems is increasingly critical in global transportation networks. This paper addresses the necessity for advanced monitoring systems by introducing a multivariate energy-efficient wireless sensor node designed for proactive maintenance in rail applications.}, language = {en} } @incollection{MichaeliKitzelmannSeegereretal.2024, author = {Michaeli, Tilman and Kitzelmann, Emanuel and Seegerer, Stefan and Romeike, Ralf}, title = {Lernen aus Daten}, series = {Furbach, U., Kitzelmann, E., Michaeli, T., Schmid, U. (Hrsg.) K{\"u}nstliche Intelligenz f{\"u}r Lehrkr{\"a}fte}, booktitle = {Furbach, U., Kitzelmann, E., Michaeli, T., Schmid, U. (Hrsg.) K{\"u}nstliche Intelligenz f{\"u}r Lehrkr{\"a}fte}, publisher = {Springer}, address = {Wiesbaden}, doi = {10.1007/978-3-658-44248-4_3}, pages = {25 -- 38}, year = {2024}, abstract = {In diesem Kapitel werden Grundlagen des maschinellen Lernens erl{\"a}utert und von wissensbasierten Ans{\"a}tzen K{\"u}nstlicher Intelligenz abgegrenzt. Dazu werden verschiedene Ans{\"a}tze des maschinellen Lernens unterschieden und an Beispielen ausgef{\"u}hrt. Aufbauend hierauf werden gesellschaftliche Bez{\"u}ge und Implikationen beleuchtet.}, language = {de} } @article{VollmerEberhardt2024, author = {Vollmer, Michael and Eberhardt, Wolfgang}, title = {Ein einfaches Modell f{\"u}r die Vorhersage von CO2 Konzentrationen in der Atmosph{\"a}re in Abh{\"a}ngigkeit von globalen CO2 Emissionen}, series = {PhyDid B, Didaktik der Physik, Beitr{\"a}ge zur DPG-Fr{\"u}hjahrstagung}, volume = {1}, journal = {PhyDid B, Didaktik der Physik, Beitr{\"a}ge zur DPG-Fr{\"u}hjahrstagung}, number = {1}, publisher = {FU Berlin}, organization = {Fachverband Didaktik der Physik}, issn = {2191-379X}, pages = {379 -- 388}, year = {2024}, abstract = {Es wird das vielleicht einfachst m{\"o}gliche Modell vorgestellt, mit dem zeitabh{\"a}ngige CO2 Konzent-rationen c(t) in der Atmosph{\"a}re ausgehend von verschiedenen globalen Emissionsszenarien f{\"u}r CO2berechnet werden. Dazu wird eine einzelne inhomogene lineare Differenzialgleichung 1. Ordnung hergeleitet, deren Parameter sich aus den quantitativen Daten des global carbon project sowie Mauna Loa Daten f{\"u}r CO2 Konzentrationen errechnen. Das Modell wird erstens getestet am Zeitraum 1960 bis 2020 mit vergleichsweise guter quantitativer {\"U}bereinstimmung zu Messdaten. Zweitens wird f{\"u}r zwei typische IPCC Emissions-Szenarien ein Vergleich der Modellvorhersagen mit denen der kom-plexen IPCC Earth-System-Klimamodelle diskutiert mit qualitativer {\"U}bereinstimmung des zeitli-chen Verlaufs. Drittens werden Ergebnisse einiger ausgew{\"a}hlter neuer Emissionsszenarien pr{\"a}sen-tiert. Ungeachtet einiger Abweichungen zu komplexeren Klimamodellen zeichnet sich unser Mo-dell durch zwei wichtige Vorteile f{\"u}r die Lehre aus. Zum einen ist es sehr einfach f{\"u}r Studierende und begabte Sch{\"u}ler nutzbar, da die erforderliche L{\"o}sung der Differentialgleichung bereits mit han-dels{\"u}blicher Tabellenkalkulationssoftware wie z.B. Excel programmiert werden kann. Dadurch ge-stattet es zum anderen auch sehr einfach, den zeitlichen Verlauf von Emissionsszenarien zu ver{\"a}n-dern und innerhalb weniger Sekunden Ver{\"a}nderungen aufgrund ge{\"a}nderter Eingaben zu berechnen. Insofern eignet sich das Modell sehr gut als Einstieg in das Thema Klimamodellierung in einf{\"u}hren-den Hochschulvorlesungen zum Themenbereich Kohlenstoffkreislauf und Klimawandel. In der Schule kann es gegen Ende der Sekundarstufe 2 beispielsweise im Projektunterricht zum Themen-komplex Nachhaltigkeit in Physik und/oder Mathematik eingesetzt werden}, language = {de} } @techreport{Schiller2024, author = {Schiller, Carina}, title = {IN-FDM-BB Werkstattbericht: W 1.2.3 Gemeinsamer Lessons-Learned-Bericht zu Beratung}, publisher = {Zenodo}, doi = {10.5281/zenodo.13349762}, pages = {15}, year = {2024}, abstract = {Die Beratung von Forschenden spielt eine zentrale Rolle bei der Umsetzung und Etablierung des Forschungsdatenmanagements (FDM) im Forschungsalltag. Nach wie vor ben{\"o}tigen viele Forschende Unterst{\"u}tzung im Umgang mit ihren Forschungsdaten. Dies kann einerseits durch einen eher generischen Kenntnisstand zum Thema FDM bedingt sein, andererseits stellt der FDM-Kosmos einen hochfluiden Bereich dar - mit fortlaufend aktualisierten oder g{\"a}nzlich neuen Tools und Infrastrukturen sowie ver{\"a}nderten Anforderungen an Forschende auch von Seiten der Forschungsf{\"o}rderer. Eine zentrale FDM-Anlaufstelle f{\"u}r die Ratsuchenden ist an den Hochschulen unerl{\"a}sslich und folglich auch unter den Maßnahmen des Verbundprojekts „IN-FDM-BB - Institutionalisiertes und nachhaltiges Forschungsdatenmanagement in Brandenburg" zu finden. Seit Oktober 2022 (Projektbeginn) werden an den beteiligten brandenburgischen Hochschulen entsprechende FDM-Kontaktpunkte auf- bzw. ausgebaut um die (Erst-)Beratung von Forschenden durchf{\"u}hren zu k{\"o}nnen. Dar{\"u}ber hinaus werden unterst{\"u}tzende Angebote etwa f{\"u}r rechtliche/ethische Fragen konzipiert und etabliert, um eine umfassende Beratung auch f{\"u}r spezifische Aspekte des FDMs zu erm{\"o}glichen. Bedarfsgerechte Materialien und Handreichungen, ebenso Bestandteil des Projektplans, erg{\"a}nzen das individuelle Beratungsangebot. Der vorliegende Werkstattbericht stellt Erkenntnisse und Herausforderungen der Erprobungsphase dar und skizziert Ans{\"a}tze, um diesen Herausforderungen l{\"o}sungsorientiert begegnen zu k{\"o}nnen. Wertvolle Einblicke in die Beratungspraxis aller am Projekt beteiligter Hochschulen bilden dabei die Grundlage.}, language = {de} } @inproceedings{PepeLasenbyBuchholz2024, author = {Pepe, Alberto and Lasenby, Joan and Buchholz, Sven}, title = {GA-ReLU: an activation function for Geometric Algebra Networks applied to 2D Navier-Stokes PDEs}, series = {ICLR 2024 Workshop on AI4DifferentialEquations In Science, Wien, {\"O}sterreich}, booktitle = {ICLR 2024 Workshop on AI4DifferentialEquations In Science, Wien, {\"O}sterreich}, pages = {1 -- 6}, year = {2024}, abstract = {Many differential equations describing physical phenomena are intrinsically geometric in nature. It has been demonstrated how this geometric structure of data can be captured effectively through networks sitting in Geometric Algebra (GA) that work with multivectors, making them suitable candidates to solve differential equations. GA networks however, are still mostly uncharted territory. In this paper we focus on non-linearities, since applying them to multivectors is not a trivial task: they are generally applied in a point-wise fashion over each real-valued component of a multivector. This approach discards interactions between different elements of the multivector input and compromises the geometric nature of GA networks. To bridge this gap, we propose GA-ReLU, a GA approach to the rectified linear unit (ReLU), and show how it can improve the solution of Navier-Stokes PDEs.}, language = {en} } @article{VollmerEberhardt2024, author = {Vollmer, Michael and Eberhardt, Wolfgang}, title = {A simple model for the prediction of CO2 concentrations in the atmosphere, depending on global CO2 emissions}, series = {European Journal of Physics}, volume = {45}, journal = {European Journal of Physics}, number = {2}, doi = {10.1088/1361-6404/ad230d}, year = {2024}, abstract = {We present a very simple model for estimating time dependent atmospheric CO2 concentrations c(t) from global carbon emission scenarios, serving as single input data. We derive a single linear differential equation of 1st order, based on parameters which are estimated from quantitative data of the global carbon project and Mauna Loa data for CO2 concentrations. The model is tested first by comparing it to the 1960-2021 period with reasonably good quantitative agreement and, second to two of the typical current IPCC scenarios with good qualitative agreement. Finally, some new emission scenarios are modelled. Despite several drawbacks concerning absolute quantitative predictions, there are two important advantages of the model. First, it can be easily executed by students already with simple programmable spreadsheet programs such as Excel. Second input emission scenarios can be changed easily and expected changes are immediately seen for discussion during undergraduate and graduate courses on the carbon cycle and climate change.}, language = {en} } @article{KloppTrittelStannarius2024, author = {Klopp, Christoph and Trittel, Torsten and Stannarius, Ralf}, title = {Coarsening of quasi two-dimensional emulsions formed by islands in free-standing smectic films}, series = {ChemPhysChem}, volume = {25}, journal = {ChemPhysChem}, number = {12}, publisher = {Wiley}, doi = {10.1002/cphc.202400166}, pages = {1 -- 12}, year = {2024}, abstract = {We study the coarsening behavior of assemblies of islands on smectic A freely suspended films in ISS microgravity experiments. The islands can be regarded as liquid inclusions in a two-dimensional fluid in analogy to liquid droplets of the discontinuous phase of an emulsion. The coarsening is effectuated by two processes, predominantly by island coalescence, but to some extend also by Ostwald ripening, whereby large islands grow at the expense of surrounding smaller ones. A peculiarity of this system is that the continuous and the discontinuous phases consist of the same material. We determine the dynamics, analyze the self-similar aging of the island size distribution and discuss characteristic exponents of the mean island growth.}, language = {en} } @article{KloppStannarius2024, author = {Klopp, Christoph and Stannarius, Ralf}, title = {Rupture of thin nematic walls between isotropic droplets of the same mesogenic material}, series = {Liquid Crystals}, volume = {51}, journal = {Liquid Crystals}, number = {5}, publisher = {Taylor \& Francis}, doi = {10.1080/02678292.2024.2325619}, pages = {783 -- 797}, year = {2024}, abstract = {We prepared isotropic droplets surrounded by nematic fringes in smectic A freely suspended films. During their coalescence, a thin nematic film is formed that acts as a barrier and separates the isotropic cores of these droplets. This film ruptures in the course of the droplet merging process. The observation of the film dynamics provides an exceptional opportunity to study the rupture of a thin liquid barrier embedded in a surrounding viscous liquid. A detailed dynamic characterisation of the nematic walls is performed. Qualitatively similar observations have been reported in 3D for oil drops coalescing in water and vice versa, where the rupture of an intermediate thin fluid film retards the merging process. The peculiarity of the system reported here is that the material of the droplets and the membrane is identical.}, language = {en} } @article{Vollmer2024, author = {Vollmer, Michael}, title = {Limitations of the eye and how to overcome them}, series = {Journal of Physics: Conference Series}, volume = {2750}, journal = {Journal of Physics: Conference Series}, number = {1}, doi = {10.1088/1742-6596/2750/1/012001}, pages = {1 -- 10}, year = {2024}, abstract = {Human eyes have spatial, temporal, and spectral limitations which impose constraints on our perception. With appropriate optical devices and cameras, the limitations can be easily overcome. As a consequence, a huge variety of physical phenomena can be made accessible for teaching.}, language = {en} } @article{ArslanBruecherDemiretal.2024, author = {Arslan, Eda and Br{\"u}cher, Viktoria and Demir, Gokce and Liekfeld, Anja}, title = {Gender distribution of scientific contributions at German ophthalmological conferences - a baseline study}, series = {Die Ophthalmologie}, volume = {122}, journal = {Die Ophthalmologie}, publisher = {Springer}, issn = {2731-7218}, doi = {10.1007/s00347-024-02154-x}, pages = {100 -- 106}, year = {2024}, abstract = {The proportion of female ophthalmologists in Germany has risen to approximately 50\% in recent years, and approximately 66\% of medical students are women. This represents a reversal of the past situation with a male predominance. Despite this change, many international studies show that women are still underrepresented at scientific conferences, particularly among invited speakers, chairpersons, and program committees. This study aims to investigate whether these differences in gender representation are also reflected at German ophthalmological congresses and whether the situation has changed in recent years. MethodsData collection covered the years 2013, 2022, and 2023 and included the congresses of the five large German ophthalmological associations: the German Ophthalmological Society (DOG), German Ophthalmic Surgical Society (DOC), German Ophthalmological Academy (AAD), German Society of Cataract and Refractive Surgery (DGII) and the German Retinological Society (RG). Data were collected based on online programs and information provided by the offices and the managing committees. The numbers of female and male speakers and chairpersons were identified, as were the gender distributions of the specific program committees. Overall, the percentage of female speakers across all years and conferences surveyed averaged 25\%, while female chairs averaged 17\%. The percentage of females in the program committees ranged from 0\% to 17\%. There was an increase in the percentage of female speakers over 10 years (2013-2023). For the DOG (ptrend < 0.01) and the DOC (ptrend = 0.01) there was a significant rise, while it was highest at the DOG (37\%) and lowest at the DGII (11\%). The percentage of female chairs was in general lower than the percentage of female speakers for all conferences (between 11\% and 26\% in 2023). Only for the DOG was there a statistically significant increase over the 10 years (ptrend < 0.01). The representation of women as speakers and chairpersons at German ophthalmology conferences is low; these continue to be predominantly male dominated. Although there has been an increase in female representation over time, it remains lower than the overall proportion of women in the profession in 2023. Significant differences are observed between the various ophthalmological conferences. Further investigation into the underrepresentation of women at these conferences is necessary, and measures to encourage greater female participation at congresses should be implemented.}, language = {en} } @article{DegenStormsLeeetal.2024, author = {Degen, Jacqueline and Storms, Mona and Lee, Benjamin and Jechow, Andreas and Stoeckl, Anna and Hoelker, Franz and Jakhar, Aryan and Walter, Thomas and Walter, Stefan and Mitesser, Oliver and Hovestadt, Thomas and Degen, Tobias}, title = {Shedding light with harmonic radar: Unveiling the hidden impacts of streetlights on moth flight behavior}, series = {Proceedings of the National Academy of Sciences of the United States of America}, volume = {121}, journal = {Proceedings of the National Academy of Sciences of the United States of America}, number = {42}, publisher = {National Academy of Sciences}, doi = {10.1073/pnas.2401215121}, year = {2024}, abstract = {One of the most dramatic changes occurring on our planet is the ever- increasing extensive use of artificial light at night, which drastically altered the environment to which nocturnal animals are adapted. Such light pollution has been identified as a driver in the dramatic insect decline of the past years. One nocturnal species group experiencing marked declines are moths, which play a key role in food webs and ecosystem services such as plant pollination. Moths can be easily monitored within the illuminated area of a streetlight, where they typically exhibit disoriented behavior. Yet, little is known about their behavior beyond the illuminated area. Harmonic radar tracking enabled us to close this knowledge gap. We found a significant change in flight behavior beyond the illuminated area of a streetlight. A detailed analysis of the recorded trajectories revealed a barrier effect of streetlights on lappet moths whenever the moon was not available as a natural celestial cue. Furthermore, streetlights increased the tortuosity of flights for both hawk moths and lappet moths. Surprisingly, we had to reject our fundamental hypothesis that most individuals would fly toward a streetlight. Instead, this was true for only 4\% of the tested individuals, indicating that the impact of light pollution might be more severe than assumed to date. Our results provide experimental evidence for the fragmentation of landscapes by streetlights and demonstrate that light pollution affects movement patterns of moths beyond what was previously assumed, potentially affecting their reproductive success and hampering a vital ecosystem service.}, language = {en} } @article{StrachanWinkel2024, author = {Strachan, Laura M. and Winkel, Carmen}, title = {Oral Histories of Social, Cultural, and Environmental Changes in Saudi Arabia Before and After Saudi Aramco}, series = {Social Change}, volume = {54}, journal = {Social Change}, number = {4}, publisher = {Sage}, doi = {10.1177/00490857241278782}, pages = {561 -- 576}, year = {2024}, abstract = {Saudi Aramco's influence upon the Kingdom of Saudi Arabia cannot be overstated. After the discovery of oil in 1938, a nationwide metamorphosis began to infiltrate desert communities, sleepy fishing villages, and traditional urban centres ultimately influencing the people and their environments in unimaginable ways. Becoming one of the world's largest oil producers has meant the loss and/or transformation of traditional ways of life. Shepherds, pearl divers, fishermen, and farmers are today's business owners, executives, and international leaders. How could the development of a single company influence a country and its populace so dramatically? Besides the financial gains, how were individuals, families, and ecosystems affected? What were some of the personal challenges experienced by Saudi citizens? In this paper, the authors address these questions and others using local Saudi knowledge. In total, 20 female university students who participated in an oral history project interviewed their family members to learn how Saudi Aramco affected them personally, their traditions, landscapes, and society more generally. Excerpts from the interviews are highlighted to expose the nuances experienced by the various research participants.}, language = {en} } @inproceedings{FitzScheeg2024, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Content-And-Review Platform Engagement of End-Users and Local Businesses - An Explorative Analysis Based on Google Maps Data}, series = {Digital Economy. Emerging Technologies and Business Innovation. ICDEc 2024. Lecture Notes in Business Information Processing}, volume = {530}, booktitle = {Digital Economy. Emerging Technologies and Business Innovation. ICDEc 2024. Lecture Notes in Business Information Processing}, publisher = {Springer}, doi = {10.1007/978-3-031-76365-6_12}, pages = {179 -- 192}, year = {2024}, abstract = {One fundamental value proposition of every digital platform is to facilitate transactions between two or more stakeholders. Active user engagement is therefore a crucial success factor for platforms to thrive, grow and establish a competitive network. This paper delves into the topic of platform engagement on content-and-review platforms by using Google Maps as a research tool. Applying a qualitative approach, a descriptive analysis of local business entities' data on Google Maps is elaborated, focusing particularly on engagement activi-ties in the conjunction of business-owners and end-users. The findings suggest that under-, over-, and non-engagement are less desirable for local business entities. Following a practice-oriented discussion, strategic pathways are proposed to leverage business value from platform engagement activities.}, language = {en} } @article{Broscheit2024, author = {Broscheit, Jessica}, title = {Inspired by animal species: biomimicry in participatory research}, series = {Information technology : it}, volume = {66}, journal = {Information technology : it}, number = {2-3}, publisher = {De Gruyter}, address = {Berlin}, doi = {10.1515/itit-2023-0121}, pages = {56 -- 63}, year = {2024}, abstract = {Inspired by the rich tapestry of nature, biomimicry encourages designers, engineers, and researchers to draw inspiration from the natural world to create technological solutions. However, little is known about the usage of biomimicry in participatory research involving local people without technical expertise. In this paper, we present two case studies to explore how performative biomimicry is when applied in a participatory research process with local people of different ages. To this end, we conducted two different case studies and asked our participants to analyze the characteristics of different animal species to design an interactive prototype that addresses a specific task. Both case studies demonstrated promising potential for biomimicry, as the participants drew inspiration from animal species to develop functional prototypes and narratives that resonate on an emotional level. Finally, we discuss the benefits of integrating biomimicry in participatory research and how this method could be used to promote social change and transformation in the society, for example, in STEM education, digital literacy, and environmental awareness.}, language = {en} }