@techreport{JostSeitz2026, type = {Working Paper}, author = {Jost, Thomas and Seitz, Franz}, title = {Fiskalregel oder Fiskalchaos}, series = {Weidener Diskussionspapiere}, journal = {Weidener Diskussionspapiere}, pages = {38}, year = {2026}, abstract = {Die europ{\"a}ischen Regeln zur Begrenzung der Staatsverschuldung haben sich nicht bew{\"a}hrt. Das Regelwerk ist zu komplex, die {\"U}berwachung und Durchsetzung unterliegt politischen Einflussnahmen und eine wirkungsvolle Sanktionierung findet nicht statt. Wir analysieren vor diesem Hintergrund die generelle Effektivit{\"a}t fiskalischer Regeln. Daf{\"u}r werten wir zun{\"a}chst die Literatur zu diesem Thema aus. Daran anschließend stellen wir die Chronologie der Fiskalregeln in der EU seit Ende der 1980er Jahre dar und gehen dabei auch auf die j{\"u}ngste Reform des Stabilit{\"a}ts- und Wachstumspaktes ein. Nach diesen Ausf{\"u}hrungen leiten wir eine einfache Regel in {\"U}bereinstimmung mit dem AEUV her, die dann f{\"u}r Simulationsrechnungen generell und mit den aktuellen Regelungen verwendet wird. Diese Regel setzt am Kernproblem der zu hohen Staatsverschuldung an, ist dem politischen Bewertungsprozess weitgehend entzogen, bewahrt die fiskalische Souver{\"a}nit{\"a}t der Mitgliedsl{\"a}nder und ist transparent und kontrollierbar. Sie ist flexibel und prinzipiell in der Lage, {\"u}berm{\"a}ßig hohe Schuldenquoten innerhalb eines {\"u}berschaubaren Zeitraums abzubauen.}, subject = {{\"O}ffentliche Schulden}, language = {de} } @inproceedings{DoehringHudec2025, author = {D{\"o}hring, Thorsten and Hudec, Rene}, title = {One decade of joint Bavarian-Czech projects on astronomical X-ray optics}, volume = {2025}, number = {16}, publisher = {16th International Conference on Astronomical X-ray Optics}, address = {Prag}, organization = {TH Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {Since ten years, Aschaffenburg University of Applied Sciences and the Czech technical university in Prague are now cooperating. During the recent decade, eleven joint projects have been executed, mainly targeting the development of astronomical X-ray optics. The bilateral cooperation also included the exchange of PhD students and scientists, cost compensation for conference participations, and the sponsoring of scientific conferences (AXRO and IBWS). The scientific output up to date are more than twenty joint publications and many individual conference contributions of the project partners in addition. The Bavarian-Czech Academic Agency (BTHA) has funded all of these projects. It is the goal of the Bavarian-Czech Academic Agency to support the academic collaboration in research and education and to contribute to an increased cooperation of the two neighbored countries Bavaria and Czech Republic in general. We will give a review on one decade of our Bavarian-Czech cooperation and on the scientific results of our joint projects on astronomical X-ray optics.}, subject = {R{\"o}ntgenoptik}, language = {en} } @inproceedings{BuschMichelsKaetkeretal.2025, author = {Busch, Uwe and Michels, Marcel and K{\"a}tker, Anna and D{\"o}hring, Thorsten and Stanik, Eva}, title = {Historical X ray images selected for UNESCO's Memory of the World Register}, volume = {16}, publisher = {16th International Conference on Astronomical X-ray Optics}, address = {Prag}, organization = {Deutsches R{\"o}ntgenmuseum Remscheid}, pages = {1 -- 1}, year = {2025}, abstract = {The Deutsches R{\"o}ntgen Museum" in Remscheid (Germany) is the institution that uniquely and comprehensively explores and documents the life and work of Wilhelm Conrad R{\"o}ntgen and the impact of his discovery. It preserves a collection of X- ray images taken by W. C. R{\"o}ntgen during his research. Among them are three images of R{\"o}ntgen's own hands and those of his wife, Anna Bertha. Three more images show R{\"o}ntgen's hunting rifle, which he was able to analyze internally by using the new X ray technology. These two series of historical pictures from the years 1895 and 1896 provide an outstanding illustration of the scientific revolution that R{\"o}ntgen's discovery triggered especially in medicine and in materials science. Therefore, his discovery of X-rays ranks among the most groundbreaking scientific achievements of modern times. In April 2025 those very first recorded X ray photographs were added on the UNESCO Memory of the World Register. The corresponding public ceremony took place on September 10 2025 in R{\"o}ntgen ´ s birth town Remscheid. Representatives of the German UNESCO Commission, of politics, and of the German R{\"o}ntgen Society were present UNESCO is thus honoring not only R{\"o}ntgen's groundbreaking discovery of X rays, but also the cultural, scientific, and technological implications of his early radiographs. The "Deutsches R{\"o}ntgen Museum" presents six famous historical X-ray documents to the public, which are now part of UNESCO ´ s Memory of the World Register.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {en} } @inproceedings{HudecDoehring2025, author = {Hudec, Rene and D{\"o}hring, Thorsten}, title = {Astrophysical and scientific payloads for CubeSats}, series = {18th Pico- and Nanosatellite Workshop 2025, Abstracts Book}, volume = {2025}, booktitle = {18th Pico- and Nanosatellite Workshop 2025, Abstracts Book}, publisher = {Julius-Maximilians-Universit{\"a}t W{\"u}rzburg}, address = {W{\"u}rzburg}, organization = {Czech Technical University in Prague}, pages = {12 -- 12}, year = {2025}, abstract = {For scientific and commercial applications, CubeSats enable cost-effective missions and significantly reduce the time between mission concept and launch compared to classical large satellites. Since 2000, there has been an accelerating increase in CubeSat launches, which in turn is expected to drive up the demand for dedicated optical instruments, especially in commercially relevant areas like high-resolution optics for earth observation. We present some studies and ideas of application of CubeSats mainly in the field of astronomy and astrophysics elaborated and studied at the Czech Technical University in Prague in collaboration with Aschaffenburg University of Applied Sciences. These includes single CubeSats as well as tandem CubeSat constellations. These miniature satellites can carry miniature scientific payloads for high-energy observations of both astrophysical objects as well as targets in high earth atmosphere. The examples include miniature X-ray and UV telescopes monitors and cameras, but also optical and NIR payloads. Due to the recent progress in satellite control engineering, tandem flight arrangements of mini-satellites are currently in discussion and under consideration for future space missions. CubeSat technologies offer an interesting possibility for space-born telescope payloads based on this approach. In such scenario, two small satellites will fly at a constant distance of a few meters up to 100 meters. Thereby, the front satellite will carry the telescope optics and the second satellite the detector system. The tandem flight arrangements are crucial for design of space telescopes with larger focal distances exceeding the typical sizes of small satellites.}, subject = {Kleinsatellit}, language = {en} } @inproceedings{DoehringKrivanekovaHildenbrand2025, author = {D{\"o}hring, Thorsten and Krivanekova, Lucia and Hildenbrand, Georg}, title = {ASTRABAX - Scientific results of two stratospheric balloon flights}, series = {18th Pico- and Nanosatellite Workshop 2025, Abstracts Book}, volume = {2025}, booktitle = {18th Pico- and Nanosatellite Workshop 2025, Abstracts Book}, publisher = {Julius-Maximilians-Universit{\"a}t W{\"u}rzburg}, address = {W{\"u}rzburg}, organization = {TH Aschaffenburg}, pages = {17 -- 17}, year = {2025}, abstract = {The ASTRABAX experiment ("Aschaffenburg Stratospheric Balloon Experiment") uses a multimodal platform to study radiation exposures in the upper atmosphere. We present a modular approach to accommodate the numerous setups under the weight restriction of light unmanned free stratospheric balloon. The compartmental setup allows flexibility to address current research questions with low expenditure in costs, manpower and technology expertise. Its easy implementation is suitable for educational purposes of students in the fields of astronomy, astrobiology, and material research. Recently, two stratospheric balloons were flown to test the feasibility and connectivity of different building blocks in a temperature-controlled gondola, and to characterize the stratospheric radiation environment.The focus of the physical experiments is the observation of the UV-C spectral region using miniature UV-VIS spectrometers, and cosmic ray dosimetry with a Geiger counter. A second set of experiments assesses the effects of irradiation on polydopamine coatings intended for the application in space-born X-ray telescopes. The platform also contains samples of biological cells that are simultaneously exposed to low-dose radiation of different compositions of particle, X-ray and UV radiation. Post-flight nanoscopic measurements aim to examine changes in the spatial chromatin organization playing a crucial role in DNA-repair mechanisms. Investigations in such natural environment are of importance for high altitude atmospheric as well as space flights, for comparable exposures on other objects of the solar system and for astrobiology.}, subject = {Stratosph{\"a}ren-Ballon}, language = {en} } @techreport{RockAdamBarthelmesWehretal.2022, type = {Working Paper}, author = {Rock, Verena and Adam, Brigitte and Barthelmes-Wehr, Karin and K{\"a}mpf-Dern, Annette and Kummert, Irina and Frensch, Stefanie}, title = {DIGITAL LEADERSHIP - F{\"u}hren im digitalen Zeitalter}, pages = {43}, year = {2022}, abstract = {Die Wirtschaft und das wirtschaftliche Handeln befinden sich in einer umfassenden Transformation. Die Krise hat einen Wandel versch{\"a}rft, der sich bereits vor der Pandemie abzeichnete: Die Digitalisierung greift in Gesch{\"a}ftsmodelle ein und ver{\"a}ndert unser Arbeiten von Grund auf. W{\"a}hrend Technik unser Leben und unsere Arbeit reichhaltiger, effizienter und nachhaltiger machen soll, wirkt sich die Digitalisierung gleichzeitig ambivalent auf das Miteinander der Menschen in den Unternehmen aus. Das digitale Potenzial bedarf der verantwortlichen und empathischen Gestaltung durch die Unternehmen. Differenzierungen, was {\"o}konomisch, sozial sowie kulturell nutzt und wo Gefahren bestehen, werden erforderlich. Die Mitarbeiterinnen und Mitarbeiter stehen dabei als Individuen mit eigenst{\"a}ndigem Wert im Mittelpunkt aller unternehmerischen {\"U}berlegungen - auch derjenigen, die mit der Digitalisierung einhergehen. Vor diesem Hintergrund ver{\"a}ndert sich auch F{\"u}hrung: Zum einen verlagert sie sich zunehmend in den virtuellen Raum, zum anderen sind erweiterte F{\"a}higkeiten und andere F{\"u}hrungspers{\"o}nlichkeiten gefragt, als dies noch vor wenigen Jahren der Fall war. F{\"u}hrung qua Amt wird vielen, insbesondere den j{\"u}ngeren Mitarbeiterinnen und Mitarbeitern, nicht gerecht, bisher bestehende Hierarchien werden in Frage gestellt. Eine moderne, werteorientierte Leitung setzt positive Erwartungen. Sie inspiriert, bef{\"a}higt und motiviert ideell, individuell und intellektuell. Transformationskompetenz erg{\"a}nzt somit traditionelle Leitungskompetenzen und ist eine wesentliche Voraussetzung, die Herausforderungen der Zukunft zu meistern und mit Ambiguit{\"a}t sowie wachsender Komplexit{\"a}t im Sinne des Unternehmens und der Menschen umzugehen. Hier haben viele Unternehmen branchenunabh{\"a}ngig Nachholbedarf. Dass dem so ist, liegt auch daran, dass F{\"u}hrungsstrukturen {\"u}ber Jahre gewachsen und entsprechend gefestigt worden sind. Hier gilt es, nachzusteuern.}, subject = {F{\"u}hrung}, language = {de} } @techreport{VilainHeubergerSchulzetal.2020, author = {Vilain, Michael and Heuberger, Matthias and Schulz, Carmen and Brauckmann, Meinulf and Borgert, Sebastian and Unland, Andrea}, title = {Aufbau und Entwicklung von Gesundheitsnetzwerken im l{\"a}ndlichen Raum - Band 2 der Handbuchreihe zum Projekt „Gesundheitszentrum Spork: Aufbau und Verstetigung eines wirtschaftliche tragf{\"a}higen, interdisziplin{\"a}ren und zivilgesellschaftlichen Wertsch{\"o}pfungsnetzwerkes im Quartier"}, pages = {148}, year = {2020}, abstract = {Der zweite Band „Aufbau und Entwicklung von Gesundheitsnetzwerken im l{\"a}ndlichen Raum" zeigt theoretisch und praxisnah wie ein regionales Themennetzwerk nachhaltig aufgebaut werden kann. Nach einer Einf{\"u}hrung in die Grundlagen von Netzwerken, die aus unterschiedlichsten Akteuren - von professionellen Dienstleister*innen bis hin zu ehrenamtlich engagierten Personen - bestehen, werden wesentliche Gelingensfaktoren f{\"u}r einen erfolgreichen Netzwerkaufbau aufgezeigt und Ans{\"a}tze einer nachhaltigen Finanzierung im Sinne eines hybriden Gesch{\"a}ftsmodells vorgestellt. In Praxisbeispielen und Tipps wird immer wieder der Praxisbezug hergestellt. Die Vorstellung des Modellprojektes Gesundheitszentrum Spork komplettiert den Band, der Praktiker dazu ermuntern soll, eigene Netzwerkideen umzusetzen.}, subject = {Gesundheitswesen}, language = {de} } @inproceedings{KronebergerStanikDoehring2025, author = {Kroneberger, Monika and Stanik, Eva and D{\"o}hring, Thorsten}, title = {Optik-Simulation f{\"u}r die Energiewende am Beispiel eines industriellen Infrarot-Heizofens}, series = {DGaO-Proceedings}, volume = {2025}, booktitle = {DGaO-Proceedings}, number = {126}, publisher = {DGaO}, organization = {DigitX}, issn = {1614-8436}, pages = {1 -- 2}, year = {2025}, abstract = {Um fossile Brennstoffe in der industriellen Pulverlackbeschichtung zu ersetzen, kann Infrarottrocknung eingesetzt werden. F{\"u}r komplexe Geometrien, bei denen eine Verschattung die Effizienz der Infrarot-Aush{\"a}rtung mindert, sind die Anordnung der Infrarotstrahler in der reflektierenden Heizkammer, deren Geometrie und die Verweilzeit der Bauteile die Schl{\"u}ssel f{\"u}r erfolgreiche Prozesse.}, language = {de} } @inproceedings{StanikDoehringReesetal.2025, author = {Stanik, Eva and D{\"o}hring, Thorsten and Rees, Paul and Kroneberger, Monika and Stanik, Martin}, title = {Infrared heating for a sustainable powder coating technology}, series = {DGaO-Proceedings}, volume = {2025}, booktitle = {DGaO-Proceedings}, number = {126}, publisher = {DGaO}, organization = {TH Aschaffenburg}, issn = {1614-8436}, pages = {1 -- 2}, year = {2025}, abstract = {Industrial processes need to be transformed into sustainable alternatives. For powder coatings, which traditionally rely on gas or oil heating systems, infrared radiation can deliver the required process heat. The aim of the NAPUBEST project is to evaluate the possibilities of infrared radiation in the powder coating process. In our laboratory, we realized a prototype of an IR oven for test measurements.}, language = {en} } @inproceedings{DoehringPreglerKrivanekovaetal.2025, author = {D{\"o}hring, Thorsten and Pregler, Jan and Krivanekova, Lucia and Hildenbrand, Georg}, title = {Strahlungsmessungen beim Erstflug des Stratosph{\"a}renballon-Experiments ASTRABAX}, series = {DGaO-Proceedings}, volume = {2025}, booktitle = {DGaO-Proceedings}, number = {126}, publisher = {DGaO}, organization = {TH Aschaffenburg}, issn = {1614-8436}, pages = {1 -- 2}, year = {2025}, abstract = {Der erste von drei geplanten Ballonfl{\"u}gen beim Aschaffenburger Stratosph{\"a}ren- Ballon-Experiment („ASTRABAX") startete im Oktober 2024 in Bad Pyrmont und erreichte eine Flugh{\"o}he von fast 35 km. Der Schwerpunkt der physikalischen Experimente lag auf der Vermessung des UV-C-Spektralbereichs mit einem Miniatur-Spektrometer und der Strahlungsdosimetrie mit einem Geigerz{\"a}hler.}, language = {de} } @inproceedings{HudecStieglitzDoehringetal.2025, author = {Hudec, Rene and Stieglitz, Veronika and D{\"o}hring, Thorsten and Friedrich, Peter and Burwitz, Vadim}, title = {Novel X-ray optics developed within the AHEAD2020 project}, series = {DGaO-Proceedings}, volume = {2025}, booktitle = {DGaO-Proceedings}, number = {126}, publisher = {DGaO}, organization = {Czech Technical University in Prague}, issn = {1614-8436}, pages = {1 -- 2}, year = {2025}, abstract = {We present a summary of our contribution to the EU Horizon 2020 project AHEAD2020, with emphasis on the X-ray optics work package. The Czech Technical University - together with other collaborating institutes - studied innovative Lobster Eye and Kirkpatrick-Baez X-ray modules, based on the Multi Foil Optics technology. In addition, a student's workshop in December 2023 and a summer school in May 2024 were organized within the project.}, subject = {R{\"o}ntgenoptik}, language = {en} } @misc{StanikDoehringReesetal.2025, author = {Stanik, Eva and D{\"o}hring, Thorsten and Rees, Paul and Kroneberger, Monika and Stanik, Martin}, title = {Infrared heating for a sustainable powder coating technology}, volume = {2025}, publisher = {DGaO}, organization = {TH Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {The recent energy crisis revealed the dependence of many manufacturing companies on fossil fuels Industrial processes need to be transformed into sustainable alternatives For powder coatings, which traditionally rely on gas or oil heating systems, infrared radiation can deliver the required process heat The strong dependence of the IR absorption on the geometry of the irradiated parts as well as on the color and sort of the coating powder has to be considered before the implementation of this innovative heating The aim of the NAPUBEST project (German abbreviation for Nachhaltige Pulverbeschichtungs Technologie which means "Sustainable Powder Coating Technology") is to get a better understanding of these correlations In our laboratory, we realized a prototype of an IR oven for test measurements The high reflectivity of silver coated reflector sheets facilitates the concentration of infrared radiation inside the oven. On the other hand, the absorption of powder coated samples in different paint colors has an impact on the heating efficiency First tests of the equipment and measurements of the angular dependence of the reflectivity of various coated samples are presented.}, subject = {Infrarotheizung}, language = {en} } @inproceedings{HudecStieglitzDoehringetal.2025, author = {Hudec, Rene and Stieglitz, Veronika and D{\"o}hring, Thorsten and Friedrich, Peter and Burwitz, Vadim}, title = {Novel X-ray optics developed within the AHEAD2020 project}, publisher = {DGaO}, organization = {TH Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {We present a summary of our contribution to the EU Horizon 2020 project AHEAD2020, with emphasis on the X-ray optics work package. The Czech Technical University - together with other collaborating institutes - studied innovative Lobster Eye (LE) and Kirkpatrick-Baez (KB) X-ray modules, based on the Multi Foil Optics technology (MFO). In addition, two major events were organized, namely a students workshop in December 2023 and a summer school in May 2024. The KB optics represents a promising and cost effective alternative to the currently used Wolter I telescopes. The LE X-ray optics, based on the Schmidt design, has a wide field of view (FOV) with a short focal length, making it suitable for CubeSat application. Thereby the 2D LE optics consist of two orthogonal sub-modules of flat smooth reflecting foils, each sub-modules focuses in one direction. The advantage of such optics is that it preserves the angular resolution throughout the FOV even for off-axis points, as demonstrated by simulations and measurements. There was a collaboration with Aschaffenburg University in design, development, and testing of the double LE module HORUS, comparing different reflecting coatings.}, subject = {R{\"o}ntgenoptik}, language = {en} } @misc{DoehringPreglerKrivanekovaetal.2025, author = {D{\"o}hring, Thorsten and Pregler, Jan and Krivanekova, Lucia and Hildenbrand, Georg}, title = {Strahlungsmessungen beim Erstflug des Stratosph{\"a}renballon-Experiments ASTRABAX}, series = {DGaO-Proceedings}, volume = {2025}, journal = {DGaO-Proceedings}, number = {126}, publisher = {DGaO}, organization = {TH Aschaffenburg}, pages = {1 -- 2}, year = {2025}, abstract = {Mit dem Aschaffenburger Stratosph{\"a}ren-Ballon-Experiment („ASTRABAX") werden Experimente zu Material- und Biowissenschaften unter extremer Strahlungsexposition in großer H{\"o}he durchgef{\"u}hrt. Der erste von drei geplanten Ballonfl{\"u}gen startete Mitte Oktober 2024 im norddeutschen Bad Pyrmont und erreichte eine Flugh{\"o}he von fast 35 km. Der Schwerpunkt der physikalischen Experimente lag auf der Vermessung des UV-C-Spektralbereichs mit einem Miniatur-UV-VIS-Spektrometer und der Strahlungsdosimetrie mit einem Geigerz{\"a}hler. In einem zweiten Satz von Experimenten wurde die Wirkung der Bestrahlung auf Polydopaminproben untersucht, welche derzeit f{\"u}r Beschichtungen von astronomischen R{\"o}ntgenspiegel entwickelt werden. Die Ballongondel enthielt auch Proben biologischer Zellen, die hier gleichzeitig einer niedrig dosierten Strahlung von hochenergetischen Partikeln, Gammastrahlen und UV-Strahlung ausgesetzt wurden. Experimente unter solchen nat{\"u}rlichen stratosph{\"a}rischen Bedingungen sind f{\"u}r atmosph{\"a}rische H{\"o}henfl{\"u}ge, bemannte Raumfahrtmissionen, vergleichbare Expositionen bei anderen Objekten des Sonnensystems und die strahlenbiologische Forschung von Bedeutung.}, subject = {Stratosph{\"a}ren-Ballon}, language = {de} } @misc{KronebergerStanikDoehring2025, author = {Kroneberger, Monika and Stanik, Eva and D{\"o}hring, Thorsten}, title = {Optik-Simulation f{\"u}r die Energiewende am Beispiel eines industriellen Infrarot-Heizofens}, series = {DGaO Proceedings, 126. Tagung}, journal = {DGaO Proceedings, 126. Tagung}, publisher = {DGaO}, organization = {DigitX}, pages = {1 -- 1}, year = {2025}, abstract = {Im Rahmen der Energiewende sollen fossile Brennstoffe auch im Heizofen einer industriellen Pulverlackbeschichtung ersetzt werden. In der Stahlindustrie ist die Infrarottrocknung von ebenen Stahlband-Oberfl{\"a}chen ein bereits seit Jahren bew{\"a}hrtes Verfahren. Pulverlack-Beschichtungen werden jedoch oft auf komplexe Geometrien aufgetragen, bei denen eine Verschattung die Effizienz der Infrarot-Aush{\"a}rtung mindert. Die Anordnung der Infrarotstrahler in der reflektierenden Heizkammer, deren Geometrie und die Verweilzeit der Bauteile sind daher die Schl{\"u}ssel f{\"u}r erfolgreiche Prozesse. Zur Verfahrensoptimierung m{\"u}ssen zudem die optischen Parameter der Pulverlacke w{\"a}hrend des Prozesses bekannt sein, um die n{\"o}tige Strahlungsleistung an Bauteile und unterschiedliche Lacke anpassen zu k{\"o}nnen. Messungen in der NAPUBEST-Prototypanlage werden daher mit optischen Simulationen des Aufbaus abgeglichen, um die Simulationsparameter an die Messergebnisse anzupassen und damit die Grundlage f{\"u}r die Auslegung von industriellen Prozessen zu gew{\"a}hrleisten. Hierbei wird Infrarotstrahlung mehrerer Wellenl{\"a}ngen ber{\"u}cksichtigt, um in unterschiedlichen Ofenzonen ben{\"o}tigte Aufheiz- und Haltephasen zu verwirklichen.}, subject = {Infrarotheizung}, language = {de} } @inproceedings{ManzAbkeHagel2025, author = {Manz, Julian and Abke, J{\"o}rg and Hagel, Georg}, title = {Automated Tracking of User Interactions in Web-Based Adaptive Learning for Software Engineering}, series = {ECSEE '25: Proceedings of the 6th European Conference on Software Engineering Education}, booktitle = {ECSEE '25: Proceedings of the 6th European Conference on Software Engineering Education}, editor = {Mottok, J{\"u}rgen and Hagel, Georg}, publisher = {Association for Computing Machinery}, address = {New York, NY, USA}, isbn = {979-8-4007-1282-1}, doi = {10.1145/3723010.3723020}, pages = {180 -- 184}, year = {2025}, abstract = {This paper explores the automation of generating and dispatching Experience API (xAPI) statements for comprehensive tracking of user interactions in e-learning environments. It introduces the react-xapi-wrapper library, an extension of the xAPI JavaScript library designed for use in web applications. Key aspects discussed include the library's features, its integration into a web-based adaptive learning system (ALS) for software engineering, and the custom verbs used. The goal is to reduce implementation effort for tutors and developers while taking advantage of xAPI's interoperability, scalability, and ability to track student learning activities and behaviors, laying the foundation for more responsive and personalized learning experiences.}, subject = {Computerunterst{\"u}tztes Lernen}, language = {en} } @inproceedings{MichaelValenciaUsmeAbke2025, author = {Michael, M{\"u}nch and Valencia Usme, Yeimy Paola and Abke, J{\"o}rg}, title = {Prototypical Implementation of a Domain Model for an Adaptive Learning System}, series = {Proceedings of the 6th European Conference on Software Engineering Education}, volume = {2025}, booktitle = {Proceedings of the 6th European Conference on Software Engineering Education}, number = {ECSEE '25: Proceedings of the 6th European Conference on Software Engineering Education}, editor = {Mottok, J{\"u}rgen and Hagel, Georg}, doi = {https://dl.acm.org/doi/pdf/10.1145/3723010.3723030}, pages = {190 -- 194}, year = {2025}, abstract = {The goal of this paper is to present the concept and implementation of a Domain Model for an adaptive learning system (ALS) as a defined framework. The ALS is developed in a research setting. In this study, a proposition for a Domain Model based on Experience API (xAPI) protocol within a Learning Record Store (LRS) is outlined. The target is to collect and analyze student data using xAPI statements, such as average working time and learning elements (LEs) interacted with, in order to gain insights into student behavior and learning processes. The aim of this study is to develop and provide a conceptual model using xAPI and LRS in an ALS setting, an architecture that improves the flexibility of developing adaptive learning systems, enabling the creation of personalized learning experiences for a wide range of users and use cases. The combination of xAPI and LRS allows the definition of a precise Domain Model and provides contextualized and structured data. Moreover, xAPI enables the transformation of the inherent complexity of the Domain Model into something understandable and actionable, facilitating deeper analysis of learning experiences. This paper demonstrates how the proposed Domain Model can effectively represent student activities, interactions, and learning outcomes within a defined framework. The expectation is that diverse types of learners, as well as developers and researchers in educational technologies, will benefit from the use of the Domain Model in a learning environment. Here the learner's preferences are diagnosed, and then user interfaces are customized in an adaptive manner to accommodate the preferences. The main task of the Domain Model is to provide data for the adaptive components of the adaptive learning system.}, subject = {Computerunterst{\"u}tztes Lernen}, language = {en} } @article{ObmannMuenchGrafetal.2025, author = {Obmann, Dirk and M{\"u}nch, Philipp and Graf, Bernhard and von Jouanne-Diedrich, Holger and Zausig, York A.}, title = {Comparison of different AI systems for diagnosing sepsis, septic shock, and cardiogenic shock: a retrospective study}, series = {Scientific reports}, volume = {2025}, journal = {Scientific reports}, number = {15}, doi = {doi.org/10.1038/s41598-025-00830-9}, pages = {1 -- 10}, year = {2025}, abstract = {Sepsis, septic shock, and cardiogenic shock are life-threatening conditions associated with high mortality rates, but differentiating them is complex because they share certain symptoms. Using the Medical Information Mart for Intensive Care (MIMIC)-III database and artificial intelligence (AI), we aimed to increase diagnostic precision, focusing on Bayesian network classifiers (BNCs) and comparing them with other AI methods. Data from 5970 adults, including 950 patients with cardiogenic shock, 1946 patients with septic shock, and 3074 patients with sepsis, were extracted for this study. Of the original 51 variables included in the data records, 12 were selected for constructing the predictive model. The data were divided into training and validation sets at an 80:20 ratio, and the performance of the BNCs was evaluated and compared with that of other AI models, such as the one rule classifier (OneR), classification and regression tree (CART), and an artificial neural network (ANN), in terms of accuracy, sensitivity, specificity, precision, and F1-score. The BNCs exhibited an accuracy of 87.6\% to 91.5\%. The CART model demonstrated a notable 91.6\% accuracy when only three decision levels were used, whereas the intricate ANN model reached 90.5\% accuracy. Both the BNCs and the CART model allowed clear interpretation of the predictions. BNCs have the potential to be valuable tools in diagnostic tasks, with an accuracy, sensitivity, and precision comparable, in some cases, to those of ANNs while demonstrating superior interpretability.}, subject = {K{\"u}nstliche Intelligenz}, language = {en} } @inproceedings{StanikPreglerDoehringetal.2025, author = {Stanik, Eva and Pregler, Jan and D{\"o}hring, Thorsten and K{\"a}tker, Anna and Busch, Uwe and Friedrich, Peter}, title = {A visitor experiment on astronomical X-ray optics for the "Deutsches R{\"o}ntgen Museum"}, series = {Proceedings of SPIE}, volume = {2025}, booktitle = {Proceedings of SPIE}, number = {13531}, publisher = {SPIE}, organization = {Technische Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {The "Deutsches R{\"o}ntgen Museum" in Remscheid is the unique institution worldwide that researches and documents the life and work of the first Nobel Prize winner in physics, Wilhelm Conrad R{\"o}ntgen and the effects of his discovery of X rays. As an integral part of the museum, the R{\"o}Lab laboratory offers visitors the opportunity to gain practical experience in X rays, optics and technology through own experiments. As part of a joint development project, students from Aschaffenburg University of Applied Sciences are currently designing a visitor experiment on astronomical X ray optics for the museum laboratory.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {en} } @inproceedings{StanikDoehringKrivanekovaetal.2025, author = {Stanik, Eva and D{\"o}hring, Thorsten and Krivanekova, Lucia and Meißner, Martin}, title = {„Zirkus UNI-versum" - ein Astronomie-Event f{\"u}r Schulklassen}, series = {Bayerischer Tag f{\"u}r gute Lehre}, volume = {2025}, booktitle = {Bayerischer Tag f{\"u}r gute Lehre}, publisher = {Universit{\"a}t W{\"u}rzburg}, organization = {Techniche Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {Im "Wissenschaftsjahr 2023 - Unser Universum", einer gemeinsamen Initiative des Bundesministeriums f{\"u}r Bildung und Forschung (BMBF) und Wissenschaft im Dialog (WiD), wurden zahlreiche Projekte in ganz Deutschland gef{\"o}rdert. Eines dieser Projekte war der "Zirkus UNI-versum", der an der Technischen Hochschule Aschaffenburg stattfand. Zielgruppe waren Schulklassen von benachbarten Schulen, die eingeladen wurden, bei einem Besuch auf dem Hochschul-Campus spielerisch Wissen {\"u}ber Astronomie und Raumfahrt zu sammeln. Gleichzeitig sollen mit dem Projekt (und anderen „Erlebnis-Bausteinen" unserer Schulprojekte) die Sch{\"u}lerinnen und Sch{\"u}ler f{\"u}r MINT-F{\"a}cher begeistert und zuk{\"u}nftige Studierende f{\"u}r technische Studieng{\"a}nge gewonnen werden.}, subject = {Astronomie}, language = {de} } @inproceedings{DoehringStanikPregleretal.2025, author = {D{\"o}hring, Thorsten and Stanik, Eva and Pregler, Jan and K{\"a}tker, Anna and Busch, Uwe and Friedrich, Peter}, title = {Konzeption eines Astronomie-Besucherexperiments f{\"u}r das Deutsche R{\"o}ntgen Museum}, series = {Bayerischer Tag f{\"u}r gute Lehre}, volume = {2025}, booktitle = {Bayerischer Tag f{\"u}r gute Lehre}, publisher = {Universit{\"a}t W{\"u}rzburg}, organization = {Technische Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {Das Deutsche R{\"o}ntgen Museum in Remscheid ist eine weltweit einzigartige Institution, die das Leben und Werk des ersten Physik Nobelpreistr{\"a}gers Wilhelm Conrad R{\"o}ntgen und die Auswirkungen seiner Entdeckung der R{\"o}ntgenstrahlung erforscht und dokumentiert Als integraler Bestandteil des Museums bietet das Museumslabor R{\"o}Lab die M{\"o}glichkeit, durch eigene Experimente praktische Erfahrungen zu verschiedenen Themen rund um R{\"o}ntgenstrahlung, Optik und Technik zu sammeln Im Rahmen eines gemeinsamen Entwicklungsprojekts konzipieren Studierende der TH Aschaffenburg derzeit ein Besucherexperiment zur astronomischen R{\"o}ntgenoptik f{\"u}r das Museumslabor Das neue Besucherexperiment soll nach seiner Realisierung junge Forscherinnen und Forscher f{\"u}r die faszinierende Welt der R{\"o}ntgenoptik und der R{\"o}ntgenastronomie begeistern.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {de} } @inproceedings{DoehringKriegerStanik2025, author = {D{\"o}hring, Thorsten and Krieger, Jochen and Stanik, Eva}, title = {Praxisschock im Studium - die Erstellung komplexer Angebote f{\"u}r Satellitenkomponenten}, series = {Bayerischer Tag f{\"u}r gute Lehre}, volume = {2025}, booktitle = {Bayerischer Tag f{\"u}r gute Lehre}, publisher = {Universit{\"a}t W{\"u}rzburg}, organization = {Technische Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {Die Lehrveranstaltung „Projektstudie" im Rahmen des Studiengangs "Internationales Technisches Vertriebsmanagement" verbindet Elemente der Ingenieurwissenschaften und der Betriebswirtschaftslehre mit einem realistischen Vertriebsprojekt, hier der Erstellung eines komplexen Angebotes f{\"u}r Satellitenkomponenten. Begleitend zu der Teamarbeit am praktischen Vertriebsprojekt werden Lehrsequenzen theoretischer Natur durchgef{\"u}hrt, die dem nachhaltigen Verst{\"a}ndnis dienen und auf die Schwerpunktthemen vorbereiten. Die hohe Qualit{\"a}t der erstellten Angebotsunterlagen zeigt, dass die angestrebten Lernziele erreicht wurden. Der Praxisschock einer komplexen Angebotserstellung erfolgt f{\"u}r die Studierenden somit bereits im Studium unter Anleitung eines auf diesem Gebiet berufserfahrenen Professors und nicht erst w{\"a}hrend der Probezeit in einer ersten Vertriebsposition.}, subject = {Investitionsg{\"u}termarketing}, language = {de} } @article{DoehringStanikZeisingetal.2025, author = {D{\"o}hring, Thorsten and Stanik, Eva and Zeising, Sebastian and Meissner, Martin}, title = {Astronomy events at Aschaffenburg University to attract future students}, series = {Acta Polytecnica}, volume = {2025}, journal = {Acta Polytecnica}, number = {65 (1)}, pages = {1 -- 6}, year = {2025}, abstract = {In 2023, the German Federal Ministry of Education and Research and the German organisation for science communication "Wissenschaft im Dialog" jointly proclaimed a "Science Year 2023" in Germany with the motto "Our Universe". One of the numerous events that have been supported has been that of the project "Zirkus UNI-versum", which took place in summer 2023 at Aschaffenburg University of Applied Sciences. This project, and other activities for schools, intend to stimulate the interest of pupils in STEM subjects and to attract future engineering students.}, subject = {Astronomie}, language = {en} } @techreport{Jost2025, type = {Working Paper}, author = {Jost, Thomas}, title = {Preisstabilit{\"a}t in Deutschland in Zeiten von D-Mark und Euro}, series = {Weidener Diskussionspapiere}, journal = {Weidener Diskussionspapiere}, pages = {14}, year = {2025}, abstract = {Mit der Abschaffung der D-Mark und der Einf{\"u}hrung des Euro waren Hoffnungen verbunden, aber auch Bef{\"u}rchtungen, dass die neue W{\"a}hrung nicht so stabil wie die D-Mark sein k{\"o}nnte. Die D-Mark geh{\"o}rte international {\"u}ber 50 Jahre zu den zwei W{\"a}hrungen mit den niedrigsten Inflationsraten. In diesem Beitrag wird die Entwicklung der Preise und der Kaufkraft in Deutschland in zwei gleich langen Perioden vor und nach der Euro-Einf{\"u}hrung verglichen. Der Euro weist dabei sogar geringere durchschnittliche Inflationsraten, gemessen an den Verbraucherpreisen in Deutschland, als die D-Mark auf. In den Jahren 1999 bis 2020 herrschte weltweit ein g{\"u}nstigeres Inflationsumfeld, was es auch der Europ{\"a}ischen Zentralbank (EZB) leichter machte, ihr Preisstabilit{\"a}tsziel zu verfolgen. Die ersten schweren Herausforderungen ergaben sich f{\"u}r die EZB seit 2021, als die Inflationsrate aufgrund negativer Angebotsschocks und einer beispiellosen Fiskalexpansion auf {\"u}ber 10\% anstieg. Die Deutsche Bundesbank konnte in {\"a}hnlichen Krisen in den 1970er Jahren mit einer konsequenten Stabilit{\"a}tspolitik den Preisauftrieb deutlich st{\"a}rker und nachhaltiger bek{\"a}mpfen als die meisten anderen L{\"a}nder. Ein Erfolg, zu dem auch ihr hoher Grad der Unabh{\"a}ngigkeit von der Politik beitrug. Ob dies der EZB gelingt, bleibt abzuwarten. Anfang 2025 liegt die Inflationsrate im Euroraum und in Deutschland trotz einer tiefgreifenden Konjunkturschw{\"a}che mit 2,5\% noch immer {\"u}ber dem Inflationsziel von 2\%.}, subject = {Europ{\"a}ische Zentralbank}, language = {de} } @article{Schmitt2025, author = {Schmitt, Joachim}, title = {Mentales Lagerfeuer}, series = {Zeitschrift f{\"u}r Unternehmensentwicklung und Change Management}, volume = {1/2025}, journal = {Zeitschrift f{\"u}r Unternehmensentwicklung und Change Management}, number = {01/2025}, editor = {Leiskau, Jan}, doi = {doi.org/10.5771/0724-6110}, pages = {1 -- 120}, year = {2025}, abstract = {Eigenverantwortung und Kooperation sind in einer modernen Organisationskultur gleichermaßen gefragt. Das hier pr{\"a}sentierte «Peer-learning-Format» wirkt in diesem Sinne wie ein Lagerfeuergespr{\"a}ch: Kleine Gruppen treffen sich, tauschen sich vertieft zu Grundfragen des Zusammenlebens aus und gehen gewandelt daraus hervor. Eine Evaluation der TH Aschaffenburg zeigt, dass mit diesem Format gr{\"o}ßere Teilnehmergruppen in die orientierte Entwicklung von Mindset und Kollaborationskultur eingebunden werden k{\"o}nnen. Dabei wird deutlich, dass diese «Learning-Circles» keine Selbstl{\"a}ufer sind, sondern eine Begleitarbeit im Sinne des Facilitation brauchen.}, subject = {Organisationsentwicklung}, language = {de} } @misc{StanikDoehringZeisingetal.2024, author = {Stanik, Eva and D{\"o}hring, Thorsten and Zeising, Sebastian and Meißner, Martin}, title = {An astronomy event at Aschaffenburg University to attract future engineering students}, series = {18th INTEGRAL/BART Workshop}, volume = {2024}, journal = {18th INTEGRAL/BART Workshop}, organization = {TH Aschaffenburg}, pages = {1 -- 1}, year = {2024}, abstract = {In 2023 the German Federal Ministry of Education and Research (BMBF) and the German organization for science communication "Wissenschaft im Dialog" (German for: Science in dialogue) jointly proclaimed a "Science Year" with the motto "Our Universe". One of the numerous events that have been supported thereby has been that of the project "Zirkus UNI-versum" (in English: "Circus UNI-verse"), which took place in summer 2023 at Aschaffenburg University of Applied Sciences. Two school classes from the local high school "Kronberg-Gymnasium" first experienced an interactive astronomy lecture including a planetarium star show in a tent. Another highlight was the rocket car race in front of the cafeteria and the exclusive launch of a water rocket on the campus green. After the collective countdown, it reached a height of around eighty meters and thus rose higher than all the trees and buildings on the campus site. For their own exploration of the night sky the pupils obtained small cardboard star maps to assemble themselves as a homework. On the summer evenings of the following school holidays, they certainly observed the sky with a different point of view and, above all, with expert knowledge. The event has given them interesting impressions of Aschaffenburg Technical University as an attractive local education facility. The project "Zirkus UNI-versum" - and other activities for schools - intend to stimulate the interest of pupils in STEM subjects and to attract future engineering students.}, subject = {Astronomie}, language = {en} } @misc{KhropostDoehringRiethmuelleretal.2024, author = {Khropost, Diana and D{\"o}hring, Thorsten and Riethm{\"u}ller, Franziska and H{\"u}lag{\"u}, Deniz}, title = {Poly-dopamine - an organic material for X-ray mirror coatings and other technical applications}, series = {AXRO 2024 - 15th International Conference on Astronomical X-Ray Optics}, volume = {2024}, journal = {AXRO 2024 - 15th International Conference on Astronomical X-Ray Optics}, organization = {TH Aschaffenburg}, pages = {1 -- 1}, year = {2024}, abstract = {Although the organic molecule dopamine (3,4-dihydroxyphenethylamine) is commonly known as the "hormone of happiness", thin polymer films of poly-dopamine also have interesting technical properties. When produced by dip coating, these self-organizing layers grow in a reproducible thickness of single or multiple molecule monolayers of a few nanometre thickness only. One application is the use of thin poly-dopamine overcoatings to increase the soft X-ray reflectivity of astronomical X-ray mirrors. We thereby introduce a method of determining the layer thickness of poly-dopamine, which is based on spectroscopic ellipsometry measurements and applies an optical model for the poly-dopamine layers including their dielectric function. Furthermore, we give an outlook to other technical applications for this promising material, presenting this bio-inspired organic polymer as an innovative technical solution for the future.}, subject = {R{\"o}ntgenspiegel}, language = {en} } @inproceedings{StanikDoehringPregleretal.2024, author = {Stanik, Eva and D{\"o}hring, Thorsten and Pregler, Jan and K{\"a}tker, Anna and Busch, Uwe and Friedrich, Peter}, title = {A visitor experiment on astronomical X-ray optics for the "Deutsches R{\"o}ntgen-Museum"}, series = {AXRO 2024 - 15th International Conference on Astronomical X-Ray Optics}, volume = {2024}, booktitle = {AXRO 2024 - 15th International Conference on Astronomical X-Ray Optics}, organization = {TH Aschaffenburg}, pages = {1 -- 1}, year = {2024}, abstract = {The "Deutsches R{\"o}ntgenmuseum" in Remscheid is the unique institution worldwide that researches and documents the life and work of the first Nobel Prize winner, Wilhelm Conrad R{\"o}ntgen, and the effects of his discovery of X-rays. As an integral part of the museum, the R{\"o}Lab laboratory offers visitors the opportunity to gain practical experience in X-rays, optics and technology through own experiments. As part of a joint development project, students from Aschaffenburg University of Applied Sciences are currently designing a visitor experiment on astronomical X-ray optics for the museum laboratory. An optical set-up with visible light illustrate the focusing principle of X-ray telescopes, e.g. for wide-angle optics based on the lobster-eye principle. Display boards explain the optics of various types of telescopes with accompanying text and corresponding illustrations. Modern X-ray observatories such as CHANDRA, XMM-Newton and eROSITA are presented clearly. Once implemented, the new visitor experiment inside the "Deutsches R{\"o}ntgenmuseum" intend to inspire young researchers for the fascinating world of X-ray optics and X-ray astronomy.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {en} } @inproceedings{XuMoeckel2024, author = {Xu, Xukuan and M{\"o}ckel, Michael}, title = {Machine Learning Based Early Rejection of Low Performance Cells in Li Ion Battery Production}, series = {CACML '24: Proceedings of the 2024 3rd Asia Conference on Algorithms, Computing and Machine Learning}, booktitle = {CACML '24: Proceedings of the 2024 3rd Asia Conference on Algorithms, Computing and Machine Learning}, doi = {https://doi.org/10.1145/3654823.3654870}, pages = {251 -- 256}, year = {2024}, abstract = {Lithium-ion battery cell production is conducted through a multistep production process which suffers from a notable scrap rate. Machine learning (ML) based process monitoring provides solutions to mitigate the impact of substantial scrap rates by repeated multifactorial quality predictions (virtual quality gates) along the process line. This enables an early rejection of battery cells which are unlikely to reach required specifications, avoids further waste of resources at later process steps and simplifies recycling of rejected cells. A hierarchical architecture is used to apply ML algorithms first for process-adapted feature extraction which is guided by a priori knowledge on typical production anomalies. In a second step, these features are correlated with end-of-line quality control data using explainable ML methods. The resulting predictions may lead to pass or fail of a battery cell, or -in the context of flexible production- may also trigger adjustments of later process steps to compensate for detected deficiencies. An example ML based quality control concept is illustrated for a pilot battery cell production line.}, subject = {Maschinelles Lernen}, language = {en} } @article{XuDonghuiBietal.2024, author = {Xu, Xukuan and Donghui, Li and Bi, Jinghou and M{\"o}ckel, Michael}, title = {AutoML based workflow for design of experiments (DOE) selection and benchmarking data acquisition strategies with simulation models}, series = {Scientific Reports}, journal = {Scientific Reports}, doi = {https://doi.org/10.1038/s41598-024-83581-3}, year = {2024}, abstract = {Design of experiments (DOE) is an established method to allocate resources for efficient parameter space exploration. Model based active learning (AL) data sampling strategies have shown potential for further optimization. This paper introduces a workflow for conducting DOE comparative studies using automated machine learning. Based on a practical definition of model complexity in the context of machine learning, the interplay of systematic data generation and model performance is examined considering various sources of uncertainty: this includes uncertainties caused by stochastic sampling strategies, imprecise data, suboptimal modeling, and model evaluation. Results obtained from electrical circuit models with varying complexity show that not all AL sampling strategies outperform conventional DOE strategies, depending on the available data volume, the complexity of the dataset, and data uncertainties. Trade-offs in resource allocation strategies, in particular between identical replication of data points for statistical noise reduction and broad sampling for maximum parameter space exploration, and their impact on subsequent machine learning analysis are systematically investigated. Results indicate that replication oriented strategies should not be dismissed but may prove advantageous for cases with non-negligible noise impact and intermediate resource availability. The provided workflow can be used to simulate practical experimental conditions for DOE testing and DOE selection.}, subject = {Maschinelles Lernen}, language = {en} } @article{KeferPapeBischoffetal.2024, author = {Kefer, Stefan and Pape, Natalie and Bischoff, Kay and Schmauss, Bernhard and Hellmann, Ralf}, title = {Lattice-Like Waveguides With Integrated Bragg Gratings in Planar Cyclic Olefin Copolymers}, series = {Journal of Lightwave Technology}, volume = {42}, journal = {Journal of Lightwave Technology}, number = {18}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {0733-8724}, doi = {10.1109/JLT.2023.3328323}, pages = {6302 -- 6311}, year = {2024}, abstract = {This contribution demonstrates femtosecond laser direct writing of lattice-like waveguides in planar cyclic olefin copolymer substrates. Based on numerical simulation and experimental near-field analysis, stable single-mode waveguiding around wavelengths of 1550 nm is demonstrated. The waveguiding mechanism is based on a hexagonal array of laser-induced, positive refractive index modification lines. Thus, the lateral extension of the guided mode can be adapted by varying the fabrication parameters and, in consequence, the resulting cross-sectional arrangement of the refractive index perturbations. With an optical attenuationof 2.2 dB·cm-1 around 1550 nm, the fabricated waveguides are well-suited for on-chip integrated photonic devices. Moreover, the waveguides can also be equipped with Bragg gratings to enable the application of the photonic platform as a sensing device. Dependingon their length, the Bragg grating structures exhibit reflectivities ofup to 99\% and spectral widths down to 0.3 nm. The flexibility of the fabrication process and the sensing capabilities of the lattice-like waveguides with integrated Bragg gratings are underlined by an exemplary application study demonstrating a relative pressure sensor. For that, a photonic platform is micromilled to generate a 300 µm thick diaphragm and a reference pressure chamber. The strain introduced to the diaphragm by external pressure changes can then be quantified by the integrated photonic structures.This way, absolute pressure sensitivities of up to 38 pm·kPa-1 can be achieved in a relative pressure range from -60 to 100 kPa. The newly-developed lattice-like waveguides with integrated Bragggratings are therefore well-suited for the realization of novel and adaptable photonic devices and sensors.}, subject = {Wellenleiter}, language = {en} } @inproceedings{DoehringStanikPregleretal.2024, author = {D{\"o}hring, Thorsten and Stanik, Eva and Pregler, Jan and Stollenwerk, Manfred and Hildenbrand, Georg}, title = {Forschung zu Strahlensch{\"a}den mit dem Stratosph{\"a}renballon-Experiment ASTRABAX}, series = {DGaO-Proceedings}, volume = {2024}, booktitle = {DGaO-Proceedings}, number = {125}, pages = {1 -- 2}, year = {2024}, abstract = {Das Stratosph{\"a}renballon-Experiment ASTRABAX ist als multimodale Plattform der Material- und Biowissenschaften f{\"u}r Untersuchungen bei extremen Strahlenbelastungen konzipiert, mit Fokus auf dem UV-C-Spektralbereich und der kosmischen H{\"o}henstrahlung. Auswirkungen von Kombinationen aus hoch- und niederenergetischer Strahlung sind relevant, jedoch nicht ausreichend erforscht.}, subject = {Stratosph{\"a}ren-Ballon}, language = {de} } @inproceedings{ErmilovaHertwigDoehringetal.2024, author = {Ermilova, Elena and Hertwig, Andreas and D{\"o}hring, Thorsten and Stanik, Eva and Cotroneo, Vincenzo and Gibertini, Eugenio}, title = {Ellipsometrische Charakterisierung von Polydopamin f{\"u}r funktionelle technische Schichten}, series = {DGaO-Proceedings}, volume = {2024}, booktitle = {DGaO-Proceedings}, number = {125}, pages = {1 -- 2}, year = {2024}, abstract = {D{\"u}nne Schichten aus dem bionischen Material Polydopamin (PDA) sind heute zunehmend auch f{\"u}r innovative technische Anwendungen von Interesse. Mittels spektroskopischer Ellipsometrie wurde die dielektrische Funktion von PDA vom ultravioletten bis zum nahen infraroten Spektralbereich vermessen. {\"U}ber ein Modell wurde auch die Dicke dieser selbstorganisierenden Schichten bestimmt.}, subject = {D{\"u}nne Schicht}, language = {de} } @inproceedings{StanikDoehringPregleretal.2024, author = {Stanik, Eva and D{\"o}hring, Thorsten and Pregler, Jan and K{\"a}tker, Anna and Busch, Uwe and Friedrich, Peter}, title = {Ein Besucherexperiment zur astronomischen R{\"o}ntgenoptik f{\"u}r das Deutsche R{\"o}ntgen-Museum}, series = {DGaO-Proceedings}, volume = {2024}, booktitle = {DGaO-Proceedings}, number = {125}, pages = {1 -- 2}, year = {2024}, abstract = {Im Rahmen eines gemeinsamen Entwicklungsprojekts entsteht ein neues Besucherexperiment zur astronomischen R{\"o}ntgenoptik, das im Museumslabor R{\"o}Lab im Deutschen R{\"o}ntgen-Museum aufgebaut werden soll. Das Ziel des interaktiven Exponats ist es, Begeisterung f{\"u}r die faszinierende Welt der R{\"o}ntgenastronomie zu wecken und das Berufsbild eines Astronomen zu vermitteln.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {de} } @misc{StanikDoehringPregleretal.2024, author = {Stanik, Eva and D{\"o}hring, Thorsten and Pregler, Jan and Stollenwerk, Manfred and Hildenbrand, Georg}, title = {Spectral measurements and life science experiments using extreme radiation exposures at high altitude}, organization = {Technische Hochschule Aschaffenburg}, pages = {1}, year = {2024}, abstract = {The ASTRABAX project ("Aschaffenburg Stratospheric Balloon Experiment"), being funded for the years 2024 to 2026, is designed as a multimodal platform for the investigation of radiation exposures at high altitude. Miniature UV-VIS spectrometers observe the UV-C spectral region. The platform also contains a radiation dosimetry, a power source for on-board electronics, and common shielding setups for multiple spectral combinations. The effects of combinations of high- and low-energy rays on human cells haven´t been sufficiently investigated and described so far. Investigations under such conditions are realistic and crucial for high altitude flights in the atmosphere, for space flights as well as for comparable exposures on other objects of the solar system, and even for exoplanet habitats to some extent.}, subject = {Stahlenbelastung}, language = {en} } @article{StieglitzBurwitzDoehringetal.2022, author = {Stieglitz, Veronika and Burwitz, Vadim and D{\"o}hring, Thorsten and Hudec, Rene and Vitek, Stanislav}, title = {Design and testing of a Kirkpatrick-Baez optics variation}, series = {EPJ Web of Conferences}, volume = {266 (2022)}, journal = {EPJ Web of Conferences}, doi = {10.1051/epjconf/202226603021}, pages = {1 -- 2}, year = {2022}, abstract = {Beside Wolter I X-ray optics, which are used at most in currently operating X-ray space telescopes, there exist also other optical designs and their usability for space observations is still the matter of studies. This article covers preliminary testing results of an optical module which is based on a modified Kirkpatrick-Baez optics. This X-ray optics, consisting of four sub-modules, was assembled in Prague and tested at the PANTER test facility of MPE afterward. The sub-modules use different reflective coatings, in part developed by our research group, on complementary flat mirrors, which approximate the shape of a Kirkpatrick-Baez optical design. In this contribution we summarise the design of the optical modules, the details of applied coating layers, and the X-ray characterisation results at the PANTER test facility}, subject = {R{\"o}ntgenoptik}, language = {en} } @inproceedings{DoehringStieglitzHudecetal.2022, author = {D{\"o}hring, Thorsten and Stieglitz, Veronika and Hudec, Rene and Sapsai, Iryna and Friedrich, Peter and Burwitz, Vadim}, title = {Characterization of a lobster-eye type X-ray telescope}, series = {EPJ Web of Conferences}, volume = {266 (2022)}, booktitle = {EPJ Web of Conferences}, doi = {10.1051/epjconf/202226613010}, pages = {1 -- 2}, year = {2022}, abstract = {Lobster-eye type X-ray telescopes use reflecting plano mirrors under grazing incidence and can observe a large field of view. As part of a Bavarian-Czech cooperation, two telescopes were build, equipped with mirrors coated with gold and iridium. Their X-ray characterization was carried out at the PANTER test facility, which simulates parallel starlight incident on the telescopes. The telescopes have an angular resolution of about 4 arc minutes in X-rays and a focal length of about 2 meters. The used X-ray mirrors reflect and focus visible light as well; their functionality in the optical regime was checked in laboratory tests. Now another test campaign will be carried out to examine the telescope resolution for real objects of the visible night sky and the imaging properties for star constellations.}, subject = {R{\"o}ntgenteleskop}, language = {de} } @misc{DoehringStanikPregleretal.2024, author = {D{\"o}hring, Thorsten and Stanik, Eva and Pregler, Jan and Stollenwerk, Manfred and Hildenbrand, Georg}, title = {Forschung zu Strahlensch{\"a}den mit dem Stratosph{\"a}renballon-Experiment ASTRABAX}, organization = {Technische Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2024}, abstract = {Das f{\"u}r die Jahre 2024 bis 2026 gef{\"o}rderte Projekt ASTRABAX („Aschaffenburger Stratosph{\"a}renballon- Experiment") ist als multimodale Plattform der Material- und Biowissenschaften f{\"u}r Untersuchungen bei extremen Strahlenbelastungen in großer H{\"o}he konzipiert. Dabei ist der UV-C-Spektralbereich von besonderem Interesse und wird mit Miniatur-UV-Spektrometern untersucht. Die Plattform des Ballonexperimentes umfasst eine gemeinsame Strahlungsdosimetrie, eine Stromquelle f{\"u}r die Bordelektronik und Abschirmungen f{\"u}r mehrere Bestrahlungskombinationen. Biologische Zellen werden Kombinationen aus Partikel-, R{\"o}ntgen- und UV-Strahlung ausgesetzt. Nach dem Flug werden m{\"o}gliche Ver{\"a}nderungen in der r{\"a}umlichen Chromatinorganisation mittels hochaufl{\"o}sender Mikroskopie untersucht. Auswirkungen von Kombinationen aus hoch- und niederenergetischer Strahlung sind bisher nicht ausreichend erforscht und beschrieben. Zus{\"a}tzlich werden auch f{\"u}r Satelliten relevante Materialproben bestrahlt. Untersuchungen unter solchen Bedingungen sind realistisch und relevant f{\"u}r Fl{\"u}ge in der Stratosph{\"a}re, f{\"u}r Raumfl{\"u}ge sowie f{\"u}r vergleichbare Expositionen bei anderen Objekten des Sonnensystems oder Exoplaneten-Habitaten.}, subject = {Stratosph{\"a}ren-Ballon}, language = {de} } @misc{StanikDoehringPregleretal.2024, author = {Stanik, Eva and D{\"o}hring, Thorsten and Pregler, Jan and K{\"a}tker, Anna and Busch, Uwe and Friedrich, Peter}, title = {Ein Besucherexperiment zur astronomischen R{\"o}ntgenoptik f{\"u}r das Deutsche R{\"o}ntgen-Museum}, series = {DGaO Proceedings}, volume = {2024}, journal = {DGaO Proceedings}, number = {125}, publisher = {DGaO}, organization = {Technische Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2024}, abstract = {Das Deutsche R{\"o}ntgen-Museum in Remscheid ist eine weltweit einzigartige Institution, die das Leben und Werk des ersten Nobelpreistr{\"a}gers Wilhelm Conrad R{\"o}ntgen und die Auswirkungen seiner Entdeckung der R{\"o}ntgenstrahlung erforscht und dokumentiert. Als integraler Bestandteil des Museums bietet das Museumslabor R{\"o}Lab die M{\"o}glichkeit, durch eigene Experimente praktische Erfahrungen rund um R{\"o}ntgenstrahlung, Optik und Technik zu sammeln. Im Rahmen eines gemeinsamen Entwicklungsprojekts konzipieren Studierende der Technischen Hochschule Aschaffenburg derzeit ein Besucherexperiment zur astronomischen R{\"o}ntgenoptik f{\"u}r das Museumslabor. Optische Experimente mit sichtbarem Licht verdeutlichen das Fokussierungsprinzip von R{\"o}ntgenteleskopen, z.B. f{\"u}r Weitwinkeloptiken nach dem Lobster-Eye Prinzip. Auf Schautafeln werden Optiken verschiedener Typen von Teleskopen mit Begleittexten und zugeh{\"o}rigen Abbildungen erl{\"a}utert sowie moderne R{\"o}ntgenobservatorien wie CHANDRA, XMM-Newton und eROSITA {\"u}bersichtlich dargestellt. Das neue Besucherexperiment soll nach seiner Realisierung junge Forscherinnen und Forscher f{\"u}r die faszinierende Welt der R{\"o}ntgenoptik und der R{\"o}ntgenastronomie begeistern.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {de} } @inproceedings{SmeetsRoetzel2024, author = {Smeets, Mario and R{\"o}tzel, Peter}, title = {The Moderating Role of Non-Monetary Gamification in Reducing Algorithm Aversion in the Adoption of AI-based Decision Support Systems}, series = {ECIS - European Conference on Information Systems}, volume = {2024}, booktitle = {ECIS - European Conference on Information Systems}, number = {1}, pages = {1}, year = {2024}, abstract = {Integrating artificial intelligence (AI) into decision-making processes is key to improving organizational performance. However, trust in AI-based decision support systems (DSSs), similar to other information systems, is important for successful integration. A disruptive phenomenon, "algorithm aversion", can impede AI trust and, thus, acceptance. Although AI recommendations outperform human recommendations in different decision-making fields, individuals underweight recommendations from AI-based DSSs compared to human decision-makers due to a lack of AI trust. We conducted a lab experiment to investigate the role of AI recommendations in workplace-related tasks, first focusing on the mediating effect of AI trust and the negative impact of algorithm aversion on decision-making performance and the moderating effect of technical competence. Second, we analyzed the ability of gamification to reduce this phenomenon. We provide evidence regarding how to enhance decision-making performance when AI recommendations are deployed and identify countermeasures against algorithm aversion to facilitate the adoption of AI-based DSSs.}, subject = {K{\"u}nstliche Intelligenz}, language = {en} } @article{SommerEsenHellmann2023, author = {Sommer, David and Esen, Cemal and Hellmann, Ralf}, title = {Static and Dynamic Mechanical Behaviour of Hybrid-PBF-LB/M-Built and Hot Isostatic Pressed Lattice Structures}, series = {Mechanical Properties of Polymeric, Metallic, and Composite Materials}, volume = {16}, journal = {Mechanical Properties of Polymeric, Metallic, and Composite Materials}, number = {9}, doi = {https://doi.org/10.3390/ma16093556}, pages = {1 -- 14}, year = {2023}, abstract = {We report on a comprehensive study of the mechanical properties of maraging steel body-centred cubic lattice structures fabricated by a hybrid additive manufacturing technology that combines laser powder bed fusion with in situ high-speed milling. As the mechanical properties of additive manufactured components are inferior to, e.g., cast components, surface modifications can improve the mechanical behaviour. Different hybrid additive manufacturing technologies have been designed using additive and subtractive processes, improving process quality. Following this, mechanical testing is performed with respect to static tensile properties and dynamic stress, hardness, and porosity, comparing specimens manufactured by laser powder bed fusion only to those manufactured by the hybrid approach. In addition, the influence of different heat-treatment techniques on the mechanical behaviour of the lattice structures is investigated, namely solution and aging treatment as well as hot isostatic pressing. Thus, the influence of the superior surface quality due to the hybrid approach is evaluated, leading to, e.g., an offset of about 14-16\% for the static testing of HIP lattice structures. Furthermore, the dynamic load behaviour can be improved with a finished surface, heading to a shift of the different zones of fatigue behaviour in the testing of hybrid-built specimens.}, subject = {Isostatisches Heißpressen}, language = {de} } @article{FlachsZhukovZechetal.2024, author = {Flachs, Dennis and Zhukov, Sergey and Zech, Isabella and Schreck, Timo and Belle, Stefan and Seggern, Heinz von and Kupnik, Mario and Altmann, Alexander Anton and Thielemann, Christiane}, title = {Enzymatic Self-Degradable PLA-Based Electrets}, series = {Journal of Polymers and the Environment}, volume = {2024}, journal = {Journal of Polymers and the Environment}, number = {1}, doi = {Journal of https://doi.org/10.1007/s10924-024-03240-6}, pages = {1 -- 11}, year = {2024}, abstract = {In recent years, the demand for sustainable and degradable materials and electronic devices has increased significantly. Among a range of biodegradable polymers, poly(lactic acid) (PLA) is a good alternative to conventional petrol-based polymers because of its attractive mechanical properties and its easy processability. Recently, PLA has also been described as a promising dielectric material with piezoelectric and electret properties. We expect that PLA—after further optimization— will play an important role as a material for environmentally friendly sensors in the future, where first applications such as air filters and pressure sensors have already been proposed. However, degradation under normal ambient conditions is very slow, and an accelerated and controllable degradation process is highly desirable for any type of PLA-based sensors. Enzymatic hydrolysis with embedded enzymes has been proposed as an approach to accelerate and control degradation. In this work, we investigate the properties of PLA in terms of dielectric and mechanical properties with a focus on its ability to store charges after the enzyme proteinase K (Trit. album) has been incorporated. Results reveal that proteinase K has a positive effect on the charge stability of solvent-cast PLA electrets after complete evaporation of the solvent. Furthermore, we observed a concentration-dependent acceleration of mass loss in a Tris-HCl buffer. A fast degradation within only one day occurred at a concentration of 6 wt\% proteinase K.}, subject = {Biologisch abbaubarer Kunststoff}, language = {en} } @article{HaefnerBischoffHelmetal.2023, author = {H{\"a}fner, Tom and Bischoff, Kay and Helm, Jonas and Kunz, Tim and Rung, Stefan and Esen, Cemal and Hellmann, Ralf}, title = {Picosecond laser microvia drilling of ABF material using MHz burst mode}, series = {Materials Research Express}, volume = {10}, journal = {Materials Research Express}, number = {9}, pages = {096301 -- 096311}, year = {2023}, abstract = {We report on a comprehensive study of laser percussion microvia drilling of Ajinomoto build-up film (ABF) material using an ultrashort pulsed laser in MHz burst mode. After laser processing, microvia drilling quality is being evaluated by the fabricated diameter and taper using laser scanning microscopy and metallography. The influences of the incubation effect, heat accumulation and shielding effects as a result of pulse to pulse interactions are being discussed on the ablation threshold, penetration depth and laser microvia drilling quality. We find that an increasing heat accumulation in MHz burst mode processing is responsible for the void formation and delamination of the insulating ABF layer. Therefore, the parameter clearance is introduced to evaluate these effects on the microvia sidewalls. For a comparable clearance, applying 2 intra-burst pulses achieves an average reduced taper of down to 19.5\% compared to single pulse mode. At the same time, a reduced laser drilling time of 16.7\% per microvia highlights the enormous potential of the MHz burst mode for laser drilling of ABF material in printed circuit board fabrication.}, subject = {Ultrakurzzeitlaser}, language = {en} } @article{RaiynWeidl2024, author = {Raiyn, Jamal and Weidl, Galia}, title = {Predicting Autonomous Driving Behavior through Human Factor Considerations in Safety-Critical Events}, series = {Smart Cities}, volume = {7}, journal = {Smart Cities}, number = {1}, doi = {https://doi.org/10.3390/ smartcities7010018}, pages = {460 -- 474}, year = {2024}, abstract = {This paper investigates the ability of autonomous driving systems to predict outcomes by considering human factors like gender, age, and driving experience, particularly in the context of safety-critical events. The primary objective is to equip autonomous vehicles with the capacity to make plausible deductions, handle conflicting data, and adjust their responses in real-time during safety-critical situations. A foundational dataset, which encompasses various driving scenarios such as lane changes, merging, and navigating complex intersections, is employed to enable vehicles to exhibit appropriate behavior and make sound decisions in critical safety events. The deep learning model incorporates personalized cognitive agents for each driver, considering their distinct preferences, characteristics, and requirements. This personalized approach aims to enhance the safety and efficiency of autonomous driving, contributing to the ongoing development of intelligent transportation systems. The efforts made contribute to advancements in safety, efficiency, and overall performance within autonomous driving systems. To describe the causal relationship between external factors like weather conditions and human factors, and safety-critical driver behaviors, various data mining techniques can be applied. One commonly used method is regression analysis. Additionally, correlation analysis is employed to reveal relationships between different factors, helping to identify the strength and direction of their impact on safety-critical driver behavior. Keywords: car following; decision making; driving behavior; naturalistic driving studies; safety-critical events; cognitive vehicles 1. Introduction Despite the increasing prevalence of vehicle automation, the persistently high number of car crashes remains a concern. Safety-critical events in human-driven scenarios have become more intricate and partially uncontrollable due to unforeseen circumstances. Investigating human driving behavior is imperative to establish traffic baselines for mixed traffic, encompassing traditional, automated, and autonomous vehicles (AVs). Various factors, such as weather conditions affecting visibility in longitudinal car-following (CF) behavior [1,2], influence human driving behavior [3]. Car-following behavior, illustrating how a following vehicle responds to the lead vehicle in the same lane, is a crucial aspect. Existing car-following models often make assumptions about homogeneous drivers, neglecting significant heterogeneity in driving experience, gender, character, emotions, and sociological, psychological, and physiological traits. Failing to account for this heterogeneity hampers a comprehensive understanding of car-following behavior, limiting model accuracy and applicability. In the development of more realistic car-following models for mixed traffic, acknowledging the diversity among drivers is crucial. By including individual variations such as risk-taking tendencies, reaction times, decision-making processes, and driving styles, the modeling of real-world driving complexities can be improved. Simplifying drivers into a few categories overlooks the richness and variety of their characteristics, prompting the need for a more comprehensive approach to capture nuances within different driver profiles. To address these Smart Cities}, subject = {Autonomes Fahrzeug}, language = {en} } @article{KeferLimbachPapeetal.2024, author = {Kefer, Stefan and Limbach, Tobias and Pape, Natalie and Klamt, Kathrin and Schmauss, Bernhard and Hellmann, Ralf}, title = {Birefringence in Injection-Molded Cyclic Olefin Copolymer Substrates and Its Impact on Integrated Photonic Structures}, series = {Polymers}, volume = {16}, journal = {Polymers}, number = {2}, doi = {10.3390/polym16020168}, pages = {168 -- 168}, year = {2024}, abstract = {This contribution quantifies the birefringence within injection-molded cyclic olefin copolymer plates and discusses its impact on the mechanical properties of the plates. It also focuses on the impact of birefringence on integrated waveguides and Bragg gratings and provides fabrication guidelines for such structures. The anisotropy in all three dimensions of the workpiece is examined by means of polarimetry and a prism coupler. It is found that the birefringence is inhomogenously distributed within the workpieces, whereas the maximum birefringence not only varies locally, but also depends on the observation direction. Overall, a maximum birefringence of 10 × 10-4 is found at the plate's surface near the injection gate. The anisotropy then reduces exponentially towards the center of the workpiece and saturates at 1.8 × 10-4, in a depth of 0.4 mm. Thus, the birefringence strongly affects near-surface photonic structures. It is found that, depending on their orientation and the local birefringence of the substrate, waveguides and Bragg gratings fabricated with comparable parameters behave completely differently in terms of polarization-dependent optical attenuation, cross-sectional intensity distribution and Bragg reflection signal. For example, the support of the TM mode can vary between total loss and an optical attenuation of 0.9 dB × cm-1. In consequence, this study underlines the importance of quantifying the birefringent state of an injection-molded cyclic olefin copolymer workpiece if it is supposed to serve as a substrate for integrated photonic structures. The study furthermore demonstrates that birefringence effects can be omitted by burying the photonic structures deeper into the volume of the thermoplastic.}, subject = {Bragg-Reflektor}, language = {en} } @inproceedings{NormannHaugValenciaetal.2023, author = {Normann, Marc and Haug, Jim and Valencia, Yeimy and Abke, J{\"o}rg and Hagel, Georg}, title = {Adaptive Learning Path Sequencing Based on Learning Styles within N-dimensional Spaces}, series = {ECSEE '23: Proceedings of the 5th European Conference on Software Engineering Education}, volume = {2023}, booktitle = {ECSEE '23: Proceedings of the 5th European Conference on Software Engineering Education}, editor = {Mottock, J{\"u}rgen and Hagel, Georg}, doi = {https://doi.org/10.1145/3593663.3593676}, pages = {56 -- 64}, year = {2023}, abstract = {Planning adaptive learning paths for students' progress throughout a course can be a challenging task, although it can be helpful for their learning progress. Within the HASKI-System, students should be able to get their own, personalized learning paths. In this paper, we present an approach towards the learning path sequencing problem. This idea is based on a novel proposal for arranging learning objects in a multi-dimensional space, bringing the relationship and similarities of these objects into a new relationship. We show, that we can use both, the Ant Colony Optimization Algorithm and the Genetic Algorithm with the idea of the Traveling-Salesman-Problem and get results, that are comparable with a proposed literature-based adaption mechanism. Nevertheless, the learning paths are all personalized based on the Felder \& Silverman Learning Style Model and the hyperspace model will allow us later on to include more dimensions for other influencing factors.}, subject = {Lernstil}, language = {en} } @techreport{Jost2023, type = {Working Paper}, author = {Jost, Thomas}, title = {Zentralbankverluste und "ungerechte?" Bankengewinne infolge der Wertpapieraufkaufprogramme und der Verzinsung der {\"U}berschussreserven}, series = {Weidener Diskussionspapiere}, journal = {Weidener Diskussionspapiere}, pages = {44}, year = {2023}, abstract = {Das Eurosystem und auch die Deutsche Bundesbank werden 2023 Verluste erzielen, die einige Jahre anhalten d{\"u}rften. Aufgrund der massiven K{\"a}ufe von Wertpapieren in den letzten 10 Jahren, vor allem Staatsanleihen, sind die {\"U}berschussreserven der Banken stark angestiegen. Die dadurch bedingten hohen Zinszahlungen an die Banken seit der geldpolitischen Kehrtwende, bei geringen Einnahmen f{\"u}r die hohen Wertpapierbest{\"a}nde, f{\"u}hrten zu massiver Kritik. Die Banken w{\"u}rden dadurch „ungerechte" Gewinne erzielen, w{\"a}hrend die Fiskalbeh{\"o}rden auf die fr{\"u}her {\"u}blichen {\"U}berweisungen der Zentralbankgewinne verzichten m{\"u}ssen. Populistische Forderungen nach einer Begrenzung der Bankengewinne durch z.B. eine pauschale, drastische Erh{\"o}hung der Mindestreserves{\"a}tze im Eurosystem zur Reduzierung der {\"U}berschussreserven bergen neue Probleme und sind nicht hilfreich. Letztlich haben die Staaten sehr lange von historisch niedrigen Zinsen infolge der expansiven Geldpolitik des Eurosystems profitiert und m{\"u}ssen nun die Folgen der massiven Aufbl{\"a}hung der Zentralbankbilanzen w{\"a}hrend des Zeitraums der Normalisierung der Geldpolitik tragen.}, subject = {Europ{\"a}ische Zentralbank}, language = {de} } @misc{HochstetterAbke2023, author = {Hochstetter, Marvin and Abke, J{\"o}rg}, title = {AdLer - Adaptive digitale Lernr{\"a}ume: Autorentool und 3D-Lernumgebung}, year = {2023}, abstract = {Die fortschreitende Digitalisierung im Bildungssektor ist gerade f{\"u}r die Berufliche Weiterbildung von zentraler Bedeutung. Bereits seit l{\"a}ngerer Zeit sind in diesem Kontext zeit- und ortsunabh{\"a}ngige Lehr-Lern-Formate sehr wichtig. Allerdings bietet digitales Lernen auch großes Potential hinsichtlich dem Thema Motivationsf{\"o}rderung. Serious Games stellen ein vielversprechendes Beispiel von Game-based Learning (GBL) dar, um die Lernmotivation zu adressieren. Hierbei geht es darum, Mechaniken (digitaler) Spiele zu verwenden, um einen Wissenserwerb zu erm{\"o}glichen, der zeitgleich motivierend gestaltet ist. Das AdLer-Projekt hat zum Ziel ein frei verf{\"u}gbares Instrument zu entwickeln, mit welchem Lehrende virtuelle 3D-Lernumgebungen erstellen und in ihrer Lehre in unterschiedlichen Formen einsetzen k{\"o}nnen. Mit Hilfe eines Autorentools werden Lehrende bei der Konzeption und Erstellung von 3D-Lernumgebungen unterst{\"u}tzt. Dadurch k{\"o}nnen Lehrende auf schnellem und einfachem Weg eigene digitale 3D-Lernumgebungen erstellen sowie nach ihren individuellen Vorstellungen hinsichtlich der eigenen Lernszenarien konfigurieren. In der 3D-Lernumgebung k{\"o}nnen Lernende nach den Prinzipien des GBL erkundungsorientiert und interaktiv lernen. Dazu k{\"o}nnen Lernende mit einem virtuellen Avatar die AdLer-3D-Lernumgebung betreten und verschiedene Handlungsm{\"o}glichkeiten wahrnehmen. Sie k{\"o}nnen sich frei in dieser Lernumgebung bewegen und unterschiedliche Lernangebote (z.B. die Bearbeitung von Lernelementen, wie H5P, Text und Video) durchf{\"u}hren. Im geplanten Poster-Pitch wird eine aktuelle Version der Software AdLer pr{\"a}sentiert und steht f{\"u}r die Konferenzteilnehmer zum Ausprobieren bereit.}, subject = {Lernspiel}, language = {de} } @article{SapsaiValenciaAbke2023, author = {Sapsai, Iryna and Valencia, Yeimy and Abke, J{\"o}rg}, title = {Learning Analytics Dashboard for Educators: Proposed Project to Design with Pedagogical Background}, series = {ECSEE '23: Proceedings of the 5th European Conference on Software Engineering Education}, volume = {2023}, journal = {ECSEE '23: Proceedings of the 5th European Conference on Software Engineering Education}, number = {ECSEE '23: Proceedings of the 5th European Conference on Software Engineering Education}, doi = {https://doi.org/10.1145/3593663.3593686}, pages = {38 -- 47}, year = {2023}, abstract = {In this article, the authors describe a prototype of a Learning Analytics Dashboard (LAD) for educators. It is based on the analysis of pedagogical actions and taking into the process and learning style of students in an online environment based on learning analytics (LA). A description of the Dashboard structure, divided into levels and categories based on available learning analytics, will allow the educator to dive deeper into the online course themselves and explore more. It will also allow them to determine the level of student performance, identify gaps in learning materials, and research student data. The authors have identified further directions for the development of a LAD for a professor, including modeling algorithms for researching student behavior and learning style using Artificial Intelligence and presenting LA in a visualized form. This paper shows the stages of creating a professor's LAD prototype as a functional part of the adaptive learning system in the HASKI-System to analyze visual information obtained from LA and the possibilities to monitor the learning process, learning progress, student activity, and make decisions on careful intervention in the students' learning process.}, subject = {Lerntechnik}, language = {en} } @incollection{Roetzel2023, author = {R{\"o}tzel, Peter}, title = {Nachhaltige Unternehmenssteuerung}, series = {Nachhaltigkeitsmanagement kompakt}, booktitle = {Nachhaltigkeitsmanagement kompakt}, publisher = {Vahlen}, address = {M{\"u}nchen}, pages = {59 -- 76}, year = {2023}, abstract = {Erste Schritte zur Implementierung eines Nachhaltigkeitsmanagements im Unternehmen Dieser kompakte Band geht auf zentrale Prinzipien und Konzepte ein, die Unternehmen helfen, ein Nachhaltigkeitsmanagement aufzubauen und weiterzuentwickeln. Dar{\"u}ber hinaus bietet er einen {\"U}berblick {\"u}ber die verschiedenen Ans{\"a}tze und Instrumente des Nachhaltigkeitsmanagements, damit Unternehmen ihre Aktivit{\"a}ten analysieren, bewerten und verbessern k{\"o}nnen, um {\"o}kologische und soziale Auswirkungen zu reduzieren und langfristige Wertsch{\"o}pfung zu erm{\"o}glichen. Diese grundlegende Einf{\"u}hrung richtet sich an die F{\"u}hrungskr{\"a}fte in den Unternehmen, die sich mit Fragen des Umwelt- und Nachhaltigkeitsmanagements besch{\"a}ftigen. Zun{\"a}chst werden die relevanten normativen und regulativen Anforderungen an das unternehmerische Nachhaltigkeitsmanagement vorgestellt, bevor konkret erste Schritte zur Implementierung eines Nachhaltigkeitsmanagements entwickelt werden. Die beiden letzten Kapitel stellen ein geeignetes Steuerungssystem sowie die Grundlagen der Nachhaltigkeitskommunikation eines Unternehmens vor.}, subject = {Unternehmensplanung}, language = {de} }