@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} }