@misc{60170, booktitle = {{Partial Answers}}, editor = {{Fonioková, Zuzana and Mildorf, Jarmila}}, issn = {{1936-9247}}, number = {{2}}, pages = {{191--350}}, publisher = {{Johns Hopkins}}, title = {{{Performing Selves in the 21st Century}}}, volume = {{23}}, year = {{2025}}, } @techreport{60596, author = {{Dyck, Daniel and Hechtner, Frank and Maiterth, Ralf and Sureth-Sloane, Caren}}, title = {{{Abschreibungen als Mittel der Investitionsförderung in Deutschland – Möglichkeiten, Grenzen und Perspektiven evidenzbasierter Analysen}}}, doi = {{http://dx.doi.org/10.2139/ssrn.5337276 }}, year = {{2025}}, } @phdthesis{63606, abstract = {{Heutzutage sind datengetriebene digitale Artefakte aus unserem Alltag nicht mehr wegzudenken. Bei der Interaktion mit datengetriebenen Artefakten spielen Daten eine zentrale Rolle, unter anderem persönliche Daten von Schüler:innen, die solche Systeme nutzen. Aus der Perspektive informatischer Bildung besteht ein wichtiges Ziel darin, Schüler:innen zu befähigen, datengetriebene digitale Artefakte aus ihrem Alltag zu verstehen, denen gegenüber informierte und reflektierte Positionen einzunehmen und die digitale Welt aktiv mitzugestalten. Das setzt etwa voraus, dass Schüler:innen das Gelernte aus dem Informatikunterricht in ihren alltäglichen Interaktionen mit datengetriebenen digitalen Artefakten anwenden können, um sich mit diesen Artefakten und der Rolle von Daten auseinanderzusetzen und darauf aufbauend selbstbestimmt, mündig und verantwortungsvoll zu handeln. Für diese Ziele informatischer Bildung wird in dieser Arbeit das fachdidaktische Konzept Datenbewusstsein entwickelt und evaluiert. Datenbewusstsein stellt Schüler:innen ein sogenanntes Erklärmodell als Zugang zur datengetriebenen Welt bereit und zielt darauf ab, dass sie damit ihre eigene Rolle in Interaktionen mit datengetriebenen digitales Artefakten sowie die Rolle von Daten darin wahrnehmen, verstehen und reflektieren können. Dadurch soll Datenbewusstsein zu einer selbstbestimmten, mündigen und verantwortungsvollen Handlungsfähigkeit in einer datengetriebenen Welt beitragen. Die Entwicklung und Evaluation des Konzepts orientiert sich am Design-Based Research Ansatz, wofür aus informatikdidaktischer Perspektive ein eigenes Vorgehensmodell entwickelt wurde. Das Forschungsvorhaben hat zwei übergeordnete Ziele: Erstens soll eine theoretische Konzeption von Datenbewusstsein für informatische Bildung und zweitens ein didaktischer Ansatz zur Förderung von Datenbewusstsein entwickelt werden. In drei Zyklen wird die Förderung von Datenbewusstsein im Informatikunterricht mithilfe von Unterrichtsinterventionen empirisch untersucht. Schwerpunkte liegen dabei unter anderem auf dem Verständnis der Schüler:innen von der Rolle von Daten in datengetriebenen digitalen Artefakten, der Förderung ihrer Auseinandersetzung mit solchen digitalen Artefakten im Alltag sowie dem Beitrag zur Entwicklung ihrer Handlungsfähigkeit. Die Hauptergebnisse dieser Arbeit liegen in der Konzeption von Datenbewusstsein sowie im entwickelten didaktischen Ansatz zum Lernen von Erklärmodellen im Informatikunterricht. Danach lernen Schüler:innen im Unterricht ein Erklärmodell für Datenbewusstsein und wenden es auf alltägliche Beispiele für datengetriebene digitale Artefakte an. Die empirischen Ergebnisse werden zeigen, dass Schüler:innen das Erklärmodell verstehen, sie darin eine subjektive Bedeutsamkeit für ihren Alltag erkennen und es ihre Handlungsfähigkeit in alltäglichen Situationen mit datengetriebenen digitalen Artefakten fördern kann.}}, author = {{Höper, Lukas}}, title = {{{Entwicklung und Evaluation des Konzepts Datenbewusstsein für informatische Bildung}}}, doi = {{https://doi.org/10.17619/UNIPB/1-2420}}, year = {{2025}}, } @inbook{60190, author = {{Cyrkel, Jakob}}, booktitle = {{Data - Culture - Society. Kulturwissenschaftliche Perspektiven auf Data Society als gesellschaftliche Transformation}}, editor = {{Uppenkamp, Vera and Vösgen-Nordloh, Meike}}, pages = {{179--200}}, publisher = {{wbg Academic}}, title = {{{Perspektiven auf Mikropolitiken der Psychotherapie mit Virtual Reality – oder: „From Training to Toy to Treatment”}}}, doi = {{10.17619/UNIPB/1-2411}}, volume = {{2}}, year = {{2025}}, } @inproceedings{63697, author = {{Stallmeister, Lea and Rezat, Sebastian}}, booktitle = {{Beiträge zum Mathematikunterricht 2025. 58. Jahrestagung der Gesellschaft für Didaktik der Mathematik}}, editor = {{Schick, Lisa and Platz, Melanie and Lambert, Anselm}}, location = {{Universität des Saarlandes, Saarbrücken}}, publisher = {{WTM-Verlag}}, title = {{{Die Bedeutung des Mathematikschulbuchs in Zeiten der Ressourcenvielfalt}}}, doi = {{10.17877/DE290R-26373}}, year = {{2025}}, } @inproceedings{63786, author = {{Löhnert, Bianca and Augsten, Nikolaus and Okulmus, Cem and Ortiz, Magdalena}}, booktitle = {{Proceedings of the 38th International Workshop on Description Logics (DL 2025), Opole, Poland, September 3-6, 2025.}}, editor = {{Tendera, Lidia and Ibanez Garcia, Yazmin and Koopmann, Patrick}}, title = {{{Query Rewriting for Nested Navigational Queries over Property Graphs}}}, volume = {{4091}}, year = {{2025}}, } @article{60017, author = {{Skolik, Alexander Marcus and zur Heiden, Philipp and Donner, Johannes Aurelius Tamino and Priefer, Jennifer}}, journal = {{ECIS 2025 Proceedings}}, location = {{Amman, Jordan}}, title = {{{Igniting Knowledge Management for Assistance Systems in Maintenance: A Method for Knowledge Gathering}}}, volume = {{2}}, year = {{2025}}, } @article{63744, abstract = {{Orbital angular momentum (OAM) modes are an important resource used in various branches of quantum science and technology due to their unique helical structure and countably infinite basis. Generating light that simultaneously carries high-order orbital angular momenta and exhibits quantum correlations is a challenging task. In this work, we present a theoretical approach to the generation of correlated Schmidt modes carrying OAM via parametric down-conversion (PDC) in cascaded nonlinear systems (nonlinear interferometers) pumped by Laguerre–Gaussian beams. We demonstrate how the number of generated modes and their population can be controlled by varying the pump parameters, the gain of the PDC process, and the distance between the crystals. We investigate the angular displacement measurement uncertainty of these interferometers and demonstrate that it can overcome the classical shot noise limit.}}, author = {{Scharwald, Dennis and Gehse, Lucas and Sharapova, Polina}}, issn = {{2378-0967}}, journal = {{APL Photonics}}, number = {{1}}, publisher = {{AIP Publishing}}, title = {{{Schmidt modes carrying orbital angular momentum generated by cascaded systems pumped with Laguerre–Gaussian beams}}}, doi = {{10.1063/5.0229802}}, volume = {{10}}, year = {{2025}}, } @inproceedings{63822, author = {{Wiemann, Leon}}, booktitle = {{Beiträge zum Mathematikunterricht 2025. 58. Jahrestagung der Gesellschaft für Didaktik der Mathematik}}, editor = {{Schick, Lisa and Platz, Melanie and Lambert, Anselm}}, location = {{Saarbrücken}}, publisher = {{WTM}}, title = {{{Die Konstruktion eines Fragebogens zur Messung der probabilistischen Intuition von Schüler*innen der Sekundarstufe I}}}, year = {{2025}}, } @article{59177, author = {{Zietlow, Christian and Lindner, Jörg}}, issn = {{0304-3991}}, journal = {{Ultramicroscopy}}, publisher = {{Elsevier BV}}, title = {{{An applied noise model for low-loss EELS maps}}}, doi = {{10.1016/j.ultramic.2024.114101}}, volume = {{270}}, year = {{2025}}, } @article{59178, author = {{Zietlow, Christian and Lindner, Jörg}}, issn = {{2045-2322}}, journal = {{Sci Rep}}, number = {{1}}, pages = {{3815}}, title = {{{An applied noise model for scintillation-based CCD detectors in transmission electron microscopy.}}}, doi = {{10.1038/s41598-025-85982-4}}, volume = {{15}}, year = {{2025}}, } @article{60001, author = {{Zietlow, Christian and Lindner, Jörg}}, journal = {{Ultramicroscopy}}, number = {{275}}, publisher = {{Elsevier}}, title = {{{An unbiased ADMM-TGV algorithm for the deconvolution of STEM-EELS maps}}}, doi = {{10.1016/j.ultramic.2025.114159}}, year = {{2025}}, } @phdthesis{63856, abstract = {{Electron energy-loss spectroscopy (EELS) is an advanced analytical technique in transmission electron microscopy, as it provides insights into material characteristics, such as electronic properties or elemental composition, at the atomic scale. The precision of every EELS analysis, however, is inherently limited by noises and blur. This thesis offers a comprehensive understanding of the noise, which is particularly valuable at low dwell times necessary for beam sensitive materials and for electron-matter interactions with low frequency of occurrence, where the noise dominates the measurement. Additionally, correlations encountered in the noise of an EELS measurement are described from both a theoretical and experimental perspective. These correlations are caused by a convolution of the noisy signal with the detector point spread function. Methods for characterizing key noise parameters of typical detectors are described, allowing the noise model to be tailored to any EELS detector. Ultimately, a novel deconvolution method enabling significant sharpening and denoising of EELS measurements is introduced and demonstrated. Its efficiency is further validated on both simulation and experimental data. The described advancement offered by the proposed deconvolution method enables the extension of current electron microscope capabilities, facilitating analysis that would be unfeasible with existing deconvolution techniques.}}, author = {{Zietlow, Christian}}, publisher = {{Universitätsbibliothek Paderborn}}, title = {{{A novel Lagrangian-based method for the deconvolution of electron energy-loss spectra}}}, doi = {{10.17619/UNIPB/1-2438}}, year = {{2025}}, } @inproceedings{62042, author = {{Reckmann, Eileen and Blomberg, Tobias and Temmen, Katrin}}, booktitle = {{Entdecken, lehren und forschen im Schülerlabor}}, editor = {{van Vorst, Helena}}, location = {{Bochum}}, title = {{{Neue Wege für das Schülerlabor – Rahmenbedingungen eines mobilen Schülerlabors}}}, volume = {{45}}, year = {{2025}}, } @techreport{63597, author = {{Hartung, Olaf}}, keywords = {{Museum, Ausstellung, Geschichte, Friedrich Wilhelm Weber}}, pages = {{350}}, publisher = {{Eigendruck}}, title = {{{Ein neues Webermuseum. Ideen und Konzepte für die Neugestaltung des Friedrich-Wilhelm-Weber-Museums in Bad Driburg-Alhausen}}}, year = {{2025}}, } @misc{63903, author = {{Markewitz, Friedrich}}, booktitle = {{Journal für Medienlinguistik}}, number = {{1}}, pages = {{1--9}}, title = {{{Langrezension zu Sarah Brommers/Kersten Sven Roths/Jürgen Spitzmüllers (Hg.) 'Brückenschläge. Linguistik an den Schnittstellen'.}}}, volume = {{7}}, year = {{2025}}, } @inproceedings{63068, abstract = {{The Nalyses research project, which will be completed in 2025, is being conducted by partners FORVIA HELLA, BMW, Fraunhofer IEM, Heinz Nixdorf Institute, Hamm-Lippstadt University of Applied Sciences, Geba, and the associated partner Miele. The aim of the project is to investigate the influencing factors for a circular economy in the field of automotive lighting using the example of a headlamp. A key aspect is the analysis of methods for recycling end of life headlamps to recover materials for the next generation of headlamps and to evaluate their reusability. The article presents investigations and methods for recovering materials from used headlamps. These methods are evaluated based on how effectively they can recover materials for the next generation of headlamps and to what extent these materials can be reused. The goal was to identify the best practices that are both ecologically and economically sustainable. To support the development of a headlamp, a digital twin was created, which enables a detailed life cycle analysis at any time. This digital twin ensures that the expected CO2 footprint of the product can be analysed over its product life cycle during development to ensure optimal use and recycling of materials. This ensures a precise assessment of the environmental impact of future products. The final demonstrator of the project, developed based on the findings of the two points mentioned above and OEM requirements, presents the third key point of the research project: the design of a new product to enable a circular economy in the field of automotive lighting. The headlamp is designed to use circular economy recyclates and to serve as a material source at the end of its life. This represents an important step for automotive lighting towards a circular economy, where products and materials are used and reused for as long as possible.}}, author = {{Schmidt, Christian and Niedling, Mathias and Helmig, Jan and Forbes, Steffen and Jardin, Janis and Stieren, Stephan and Fittkau, Niklas and Peitzmeier, Henning}}, booktitle = {{Proceedings of the 16th International Symposium on Automotive Lighting 2025}}, location = {{Darmstadt}}, title = {{{Circular economy approaches in automotive lighting – insights from the Nalyses project}}}, doi = {{10.26083/tuprints-00030841}}, year = {{2025}}, } @article{63745, abstract = {{Multimode squeezed light is an increasingly popular tool in photonic quantum technologies, including sensing, imaging, and computation. Meanwhile, the existing methods of its characterization are technically complicated, which reduces the level of squeezing, and mostly deal with a single mode at a time. Here, for the first time, to the best of our knowledge, we employ optical parametric amplification to characterize multiple squeezing eigenmodes simultaneously. We retrieve the shapes and squeezing degrees of all modes at once through direct detection followed by modal decomposition. This method is tolerant to inefficient detection and does not require a local oscillator. For a spectrally and spatially multimode squeezed vacuum, we characterize eight strongest spatial modes, obtaining squeezing and anti-squeezing values of up to −5.2 ± 0.2 dB and 8.6 ± 0.3 dB, respectively, despite the 50% detection loss. This work, being the first exploration of an optical parametric amplifier’s multimode capability for squeezing detection, paves the way for the real-time detection of multimode squeezing.}}, author = {{Barakat, Ismail and Kalash, Mahmoud and Scharwald, Dennis and Sharapova, Polina and Lindlein, Norbert and Chekhova, Maria}}, issn = {{2837-6714}}, journal = {{Optica Quantum}}, number = {{1}}, publisher = {{Optica Publishing Group}}, title = {{{Simultaneous measurement of multimode squeezing through multimode phase-sensitive amplification}}}, doi = {{10.1364/opticaq.524682}}, volume = {{3}}, year = {{2025}}, } @article{61825, abstract = {{Abstract Industrial x-ray computed tomography (CT) systems with high geometric flexibility are increasingly utilized for large-scale measurement objects or challenging measurement tasks. To maintain high accuracy when deviating from the established circular scan trajectory, trajectory calibration methods using multi-sphere reference objects with known marker positions are commonly employed. These multi-sphere objects can either be scanned together with the measurement object (online trajectory calibration) or in a separate scan (offline trajectory calibration). While offline calibration increases machine time, it generally results in higher scan quality. However, a sufficient pose repeatability is necessary to ensure comparable or even superior accuracy to online calibration. In this contribution, we present a straightforward procedure to compare both types of trajectory calibration in a way that the differences of the results can directly be traced back to the influence of the pose repeatability. The multi-sphere reference object is not only used for trajectory calibration, but simultaneously as a measurement object for repeated measurements. The methodology is tested on both a twin robotic CT system and a conventional CT system that is additionally equipped with a hexapod manipulator for adaptive object tilting. Results showed, independent from the type of trajectory calibration, systematic measurement errors in the order of 10−5–10−4 of measured sphere distances and sphericity values below 50 μ m . For sphere distances, random errors were increased by a factor of 5 due to the offline trajectory calibration, but were still low ( < 1 μ m ) in comparison to systematic errors and the spread of different measurement features. Overall, both investigated systems demonstrated sufficient positioning repeatability for offline trajectory calibration. The method is in general also applicable to any other types of manipulator systems used for CT devices. It provides a workflow for the decision which type of trajectory calibration is preferable for a given CT system.}}, author = {{Butzhammer, Lorenz and Handke, Niklas and Wittl, Simon and Herl, Gabriel and Hausotte, Tino}}, issn = {{0957-0233}}, journal = {{Measurement Science and Technology}}, number = {{2}}, publisher = {{IOP Publishing}}, title = {{{Direct assessment of the influence of pose repeatability on the accuracy of dimensional measurements for computed tomography systems with high degrees of freedom}}}, doi = {{10.1088/1361-6501/ada05a}}, volume = {{36}}, year = {{2025}}, } @article{55620, author = {{Speckenmeyer, Philipp and Hilmer, Constanze and Rauchecker, Gerhard and Schryen, Guido}}, journal = {{Computers & Operations Research}}, title = {{{Parallel Branch-and-Price Algorithms for the Single Machine Total Weighted Tardiness Scheduling Problem with Sequence-Dependent Setup Times}}}, doi = {{https://dx.doi.org/10.2139/ssrn.4537436}}, volume = {{173}}, year = {{2025}}, }