Open Access Publications
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Item Phase-space-based fusion of angular and height data in tactile and optical surface texture measurement for tribological analysis(Elsevier, 2026-01-08) Eifler, Matthias; Brodmann, BorisAccurate characterization of surface topography is essential for understanding and optimizing tribological processes. A wide range of tactile and optical measurement techniques – such as stylus profilometry, scattered light sensors, white light interferometry, confocal microscopy, and focus variation – are available, each with distinct advantages and inherent nonlinearities that may introduce method-specific artefacts. This study introduces a novel approach for mapping and assessing surface topography using a phase-space representation that integrates both height and angular information and enables a joint analysis and fusion of both characteristics. This exhibits potential for efficient and compact monitoring of tribological processes. We investigate the informational content and limitations of various measurement techniques by surface texture and angular parameters, highlighting the differences and the impact of the statistics of a surface. Then, the overall height and angular distributions of the measured topographies are compared. Angular representations offer an additional dimension of analysis, enhancing the robustness of surface characterization. For the angular distribution, tactile and optical methods often yield differing results, particularly for complex surface features. A direct angular measurement offers another perspective on the surface topography and the combination of height and angular information enables a more holistic surface description. The proposed phase-space representation is exemplified through the analysis of cylinder liner surfaces, illustrating its potential to improve the accuracy and interpretability of tribological assessments and demonstrating the potential of this representation to expose even slightest changes in the surface topography. The fusion of the independent variables height and slope can allow a precise monitoring of tribological processes where only one of the two distributions may change and thus allows a novel perspective on the tribological assessment of surfaces.Item Aufbau eines Digital Learning Space an der IU Internationale Hochschule(Arbeitsgemeinschaft für Medizinisches Bibliothekswesen (AGMB e.V.), 2025-09-19) Hoffmann, KiraDigital learning environments can be much more than just platforms for information and communication – they have the potential to evolve into a “third place” where students, educators, and external participants come together to learn from one another and collaboratively develop new ideas. The digital learning space (DLS) at IU International University of Applied Sciences aims to create exactly such a space: a platform that fosters collaborative learning formats, promotes lifelong learning, en hances media literacy, and contributes to a holistic sense of academic wellbeing. This article presents the concept of the digital learning space at IU International University, which is designed around student needs and combines elements of a library, a digital seminar room, and an in tercultural learning environment. The goal is to cultivate a vibrant community that offers both synchronous and asynchronous learning opportunities – from moderated discussions, webinars, and digital project workshops to targeted tutorials and re sources for media and information literacy. This paper will address the following issues: What exactly is a DLS, and how can it support students not only academically, but also in their personal development. What role does a diversity-aware approach play – one that considers different cultural backgrounds and learning styles? And how can such an offering be implemented and sustainably integrated into daily academic life so that it is truly perceived as a third place? The article offers readers a deeper understanding of the technical, conceptual, and didactic aspects of the DLS, along with the key challenges and factors that contributed to its success. Digitale Lernumgebungen können weit mehr sein als reine Informations- und Austauschplattformen – sie haben das Potenzial, zu einem „Dritten Ort“ heranzuwachsen, an dem Studierende, Lehrende und externe In- teressierte zusammenkommen, voneinander lernen und gemeinsam neue Ideen entwickeln. Der Digital Learning Space (DLS) soll genau diesen Raum bieten: Eine Plattform, die Zugang zu kollaborativen Lernformaten schafft, lebenslanges Lernen fördert, Medienkompetenzen stärkt und so zum ganzheitlichen akademischen Wohlbefinden beiträgt. In diesem Artikel wird das Konzept des Digital Learning Space der IU Internationalen Hochschule vorgestellt, das sich an den Bedürfnissen der Studierenden orientiert und Elemente aus Bibliothek, digitalem Seminarraum sowie interkulturellem Lernort vereint. Dabei soll eine lebendige Community entstehen, in der sowohl synchrone als auch asynchrone Formate angeboten werden: von moderierten Diskussionen, Webinaren und digitalen Projektwerkstätten bis hin zu gezielten Tutorials und Ressourcen zur Medien- und Informations- 1/6GMS Medizin - Bibliothek - Information 2025, Vol. 25(1), ISSN 1865-066X FachbeitragOPEN ACCESSDritter Ort für die Wissenschaft kompetenz. Im Mittelpunkt stehen folgende Fragen: Was ist eigentlich ein DLS und wie kann er Studierende nicht nur fachlich, sondern auch persönlich weiterbringen? Welche Rolle spielt dabei ein diversitätsbewus- ster Ansatz, welcher unterschiedliche kulturelle Hintergründe und Lernstile berücksichtigt? Wie lässt sich ein solches Angebot umsetzen und nachhaltig in den Studienalltag integrieren, um langfristig als Dritter Ort wahrgenommen zu werden? Hier werden Einblicke in die techni- schen, konzeptionellen und didaktischen Überlegungen sowie Heraus- forderungen und Erfolgsfaktoren gegeben.Item Kinderpatenschaften: Zwischen emotionaler Bindung, sozialer Ungleichheit und ethischer Verantwortung: Eine kritische Analyse personalisierter Spendenmodelle in der Entwicklungszusammenarbeit(Springer Fachmedien Wiesbaden, 2025-12-19) Richter, Carsten; Peinemann, KatharinaKinderpatenschaften gelten als wirksames Fundraising-Instrument, stehen jedoch zunehmend im Fokus ethischer Kritik. Diese Abhandlung analysiert ihre Chancen und Risiken anhand theoretischer Konzepte und qualitativer Interviews mit vier Organisationen. Die Ergebnisse zeigen, dass Reformen wie gemeinwesenorientierte Ansätze und transparente Kommunikation notwendig sind, um soziale Ungleichheit, paternalistische Strukturen und problematische Erwartungshaltungen zu vermeiden. Child sponsorships are an established fundraising tool, yet increasingly subject to ethical critique. This article examines their potential and pitfalls through theoretical frameworks and qualitative interviews with four NGOs. Findings highlight the need for reforms such as community-based models and transparent communication to avoid social inequality, paternalistic dynamics, and problematic donor expectations.Item Virtual Reality Coaching: Einstellungen und Erwartungen von Klient:innen im Licht von Potenzialen und Grenzen der Technologie(Springer Nature, 2025-11-13) Werning, Ellena; Rifici, Chiara TatianaVirtual Reality Coaching (VRC) verbindet bewährte Coachingmethoden mit immersiver Technologie und ermöglicht Klient:innen ein intensives Erleben, Perspektivwechsel sowie das Erproben neuer Verhaltensweisen in realitätsnahen Szenarien. Eine Mixed-Methods-Studie zeigt: Die Mehrheit der Befragten steht VRC offen und neugierig gegenüber, insbesondere aufgrund der erlebbaren Nähe trotz Distanz, der immersiven Tiefe und der gestalterischen Möglichkeiten. Die Potenziale überwiegen aus Klient:innensicht deutlich gegenüber den Risiken. Für eine wirksame Umsetzung müssen Coaches entsprechende Kompetenzen entwicklen, zudem gilt es, die Wirksamkeit noch weiter zu untersuchen.Item Does learning empowerment matter? Development and initial validation of the work-related learning empowerment scale(Springer, 2025-08-18) Kortsch, Timo; Schmitz, Anja Pia; Decius, Julian; Lorber, AnnelieThe concept of New Learning emphasizes the psychological empowerment of learners as a prerequisite for effective work-related learning. However, a validated measure to assess empowerment specifically in the context of work-related learning has been lacking. This study introduces the Work-Related Learning Empowerment Scale (WRLES) and investigates its predictive value for key learning and career-related outcomes. Based on a two-wave online study (N = 258, recruited via Prolific), we developed and validated a new instrument through exploratory and confirmatory factor analysis. The findings indicate a three-factor structure—self-determination, meaning, and competence—with high reliability and evidence of convergent and discriminant validity. WRLE significantly predicted job satisfaction, work engagement, and both informal and self-regulated learning.Item The Hidden Cost of High Aspirations: Examining the Stress-Enhancing Effect of Motivational Goals Using Vignette Methodology(MDPI, 2025-07-10) Gschneidner, Tamara; Kortsch, TimoOccupational stress is a major contributor to mental and physical health problems, yet individuals vary in how they appraise and respond to stress, even in identical situations. This study investigates whether motivational goals and internalized conflict schemas—as proposed by Grawe’s Consistency Theory—account for these differences by intensifying subjective stress when approach and avoidance goals are simultaneously activated. In a vignette-based pilot study, we validated 12 workplace scenarios varying in incongruence levels. In the main study (N = 482; mean age 25 years; 83.2% female), participants completed the FAMOS questionnaire to assess approach and avoidance goals and were randomly assigned to 4 out of the 12 pretested vignettes. Subjective stress was measured before and after vignette exposure using the SSSQ, and subjective wellbeing was measured using the PANAS. Multilevel modeling showed that participants with stronger avoidance goals and conflict schemas reported higher baseline stress, and that experimentally induced high incongruence led to greater increase in stress levels compared to low incongruence in three out of four scenarios. These findings suggest that psychological inconsistencies—particularly avoidance goals, conflict schemas, and goal incongruence—serve as internal stressors that intensify stress responses. The results highlight the importance of considering individual motivational patterns in stress research and intervention.Item Quantifying an Airline’s brand Image: The Ryanair disutility effect(Elsevier, 2025-06-21) Evangelinos, Christos; Tscharaktschiew, Stefan; Obermeyer, Andy