TY - JOUR A1 - Berger, Yvonne T1 - Class & gender in transition: Local marriage markets in Chinese global cities JF - Blog Post Global Qualitative Sociology N2 - The essay examines how class and gender are negotiated in Chinese urban marriage markets. It offers a valuable perspective for understanding broader global dynamics — including class reproduction, gender asymmetry, and demographic change in global cities. KW - China KW - Class and Gender KW - Global Cities KW - Marriage Markets Y1 - 2026 PB - https://global-qualitative-sociology.net/ ER - TY - JOUR A1 - Effenberger, Thomas A1 - Yalamanchili, Rajanya A1 - Stubenrauch, Franz T1 - Optimierung komplexer elektrischer Antriebssysteme durch Modellierung, Simulation und Codegenerierung in Simulink® JF - Tagungsband , AALE 2026 , Mechatronische Systeme für die Automatisierung: Fortschritt durch Präzision und Flexibilität N2 - Komplexe elektrische Antriebssysteme können im Designprozess auf unterschiedliche Weise modelliert und optimiert werden. Eine umfassende Abbildung aller Systemkomponenten in einem Modell und hohe Simulationsgeschwindigkeit reduzieren Fehler, erhöhen Flexibilität und Zuverlässigkeit und verbessern die Time-to-Market. Gleichzeitig muss gewährleistet sein, dass aus den optimierten Ergebnissen ohne fehleranfällige manuelle Schritte implementierbarer Code oder Hardwarebeschreibungen generiert werden können. Diese Arbeit zeigt die Unterschiede zwischen kausaler und akausaler Modellierung auf und demonstriert, dass insbesondere die akausale Modellierung in Kombination mit geeigneten Solvern für den physikalischen Anteil elektrischer Antriebssysteme zu effizienteren und schnelleren Simulationen führt. Durch das Vorausberechnen der Schaltzeitpunkte einer Pulsweitenmodulation und das gezielte Starten des Solvers kann – im Gegensatz zur vollständigen Abbildung des zugrunde liegenden hochauflösenden Taktsignals – eine Verkürzung der Simulationszeit um bis zu99 % erreicht werden. Dabei wird durchgängig die Kompatibilität zu Coder-Tools sichergestellt, insbesondere im Hinblick auf die Schnittstellen zwischen den Teilmodellen. KW - Schnelle Simulation Y1 - 2026 U6 - https://doi.org/10.33968/2026.07 SP - 61 EP - 70 ER - TY - JOUR A1 - Höpfl, Felix A1 - Brundiers, Mira T1 - Hier denTrust and anxiety as primary drivers of digital health acceptance in multiple sclerosis: toward an extended disease-specific technology acceptance model JF - Frontiers in Digital Health N2 - Abstract Background: Digital health applications and AI-supported wearables may benefit people with Multiple Sclerosis (MS), yet fluctuating cognitive and physical symptoms could shape adoption in ways not fully captured by traditional acceptance models.Objective: To identify determinants of digital health acceptance in MS, focusing on emotional factors and disease-related moderators, and to compare these patterns with individuals living with other chronic conditions.Methods: An online survey (Winter 2024/2025) assessed Technology Acceptance Model (TAM) and Unified Theory of Acceptance and Use of Technology (UTAUT) constructs in MS patients (n = 64) and a comparison group (n = 14). Measures included Perceived Usefulness (PU), Perceived Ease of Use (PEOU), Behavioral Intention (BI), Social Influence (SI), Trust in Technology (TT), Technological Anxiety (TA), and self-reported wearable/app use.Results: Groups did not differ significantly in PU, PEOU, BI, or SI (all p > .05), though between-group comparisons should be interpreted cautiously given the small comparison group size (n = 14). However, MS participants reported substantially lower regular wearable use [χ2(2) = 7.83, p = .020]. TT (β = .52, p < .001) and TA (β = –.38, p < .001) were the strongest predictors of BI, whereas PU and PEOU contributed minimally. Symptom severity moderated acceptance pathways, weakening PEOU effects and amplifying TA effects.Conclusion: Findings reveal an intention–behavior gap in MS and show that emotional and capability-related factors outweigh cognitive predictors. We outline foundational elements of an Extended Disease-Specific Technology Acceptance Model for MS integrating trust, anxiety, and symptom burden. Digital health tools for MS should prioritize trust-building and anxiety-reducing design features. KW - Multiple Sclerosis KW - AI KW - UTAUT KW - TAMs Y1 - 2026 U6 - https://doi.org/10.3389/fdgth.2026.1763329 VL - 2026 IS - 8 ER - TY - JOUR A1 - Morone, Piergiuseppe A1 - Vieira, Helena A1 - Lange, Lene A1 - Meer, Yvonne Van der A1 - Penttilä, Merja A1 - Dragicevic, Arnaud A1 - Koukios, Emmanuel A1 - Krommes, Sandra A1 - Alvarino Pereira, Teresa A1 - Vincevica-Gaile, Zane A1 - Vidarsson, Jonas A1 - Zorpas, Antonis A. A1 - Zimmermannova, Jarmilla A1 - Zimniewska, Malgorzata A1 - O'Connor, Kevin E. T1 - The European Bioeconomy strategy revision: an opportunity to go against the tide and secure a sustainable future JF - Cleaner and Circular Bioeconomy N2 - In today’s tense geopolitical landscape, marked by strained relations among major powers and deep-rooted dependence on fossil-based economies, the emerging modern bioeconomy can provide resource independence and resilience, in tandem with economic, social, and environmental benefits, and thus has the potential to underpin a sustainable future. The bioeconomy is a vital cross-cutting meta-sector, but it is not inherently circular or sustainable; without intentional design, it risks becoming a linear, unsustainable replacement of the fossil-based economy. Realising its full promise requires purposeful engineering to address climate change, biodiversity loss, strengthen resource independence, support food security and resilience, create jobs, promote social inclusion, boost competitiveness and autonomy, and improve human, animal, and environmental health. The potential is enormous, but so are the challenges society faces in realising the vision for a biobased, nature-positive future. KW - Circular bioeconomy KW - Bioeconomy strategy KW - Policy KW - Resource efficiency KW - Scale-up Y1 - 2026 U6 - https://doi.org/10.1016/j.clcb.2026.100204 VL - 13 IS - 100204 SP - 1 EP - 9 PB - Elsevier CY - Cleaner and Circular Bioeconomy ER - TY - JOUR A1 - Mahenthren, Vijhay Krisshna A1 - Weber-Blaschke, Gabriele A1 - Hughes, Mark A1 - Risse, Michael T1 - PRecTimber 2.0: Forecasting quantitative and qualitative potentials for wood circularity in Germany, Finland, and Sweden JF - Resources, Conservation and Recycling N2 - National bioeconomy strategies in Germany, Finland, and Sweden are expected to increase wood demand, putting pressure on already strained forest resources. Circularity of wood products can reduce this demand by improving resource efficiency, but barriers like uncertain availability and quality of post-consumer wood hinder implementation. This study optimizes and extends the PRecTimber model to forecast post-consumer wood quantities and qualities in Germany (revised with quality information), Finland, and Sweden. By 2050, predicted post-consumer wood volumes are 14.11 Mt in Germany, 1.64 Mt in Finland, and 2.74 Mt in Sweden, mainly from the construction sector. Our quality assessment methodology with scenario analysis (status quo S0 and improved scenarios S1–S2 with +10 and +20 percentage-point gains in key quality factors) reveals that the shares of post-consumer construction sawnwood suitable for lifespan extension and material recycling, respectively, are 25 % and 59 % under S0, 36 % and 50 % under S1, and 49 % and 38 % under S2. Leveraging these quantity and quality insights, policy reforms can support industries and technological innovation to optimize the use of post-consumer wood. Y1 - 2026 U6 - https://doi.org/10.1016/j.resconrec.2026.108813 SN - 0921-3449 VL - 228 PB - Elsevier BV ER - TY - JOUR A1 - Brandt, Hanna A1 - Heidl, Christian T1 - Happiness and a sense of effectiveness through self-determination, physical and mental health JF - Health Psychology: Applications in Clinical and Sports Contexts KW - happiness KW - mental health KW - physical health Y1 - 2026 U6 - https://doi.org/10.5771/9783748954804-9 SP - 9 EP - 20 PB - Nomos CY - Baden-Baden ER - TY - JOUR A1 - Stang, Philipp A1 - Sedelmaier, Yvonne A1 - Brandt, Hanna A1 - Heidl, Christian T1 - Sexualität im Kontext der Gesundheit alter Menschen in der stationären (Langzeit-)Pflege. JF - Wandel der Pflegekultur KW - Sexualität im Kontext der Gesundheit älterer Menschen KW - stationären (Langzeit-)Pflege Y1 - 2026 SP - 90 EP - 105 PB - transcript Verlag CY - Bielefeld ER - TY - JOUR A1 - Döringer, Tobias A1 - Horstmannshoff, Caren A1 - Kiesel, Theresia A1 - Schädler, Stefan A1 - Müller, Martin A1 - Bauer, Petra T1 - Entwicklung und Evaluierung einer evidenzbasierten Schulung zur physiotherapeutischen Versorgung von Patient*innen mit Schwindel und/oder Gleichgewichtsstörungen im Rahmen eines Versorgungspfades JF - physioscience KW - Physiotherapie, Schwindel, Versorgungspfad Y1 - 2026 U6 - https://doi.org/10.1055/s-0043-1777896 IS - 20/S 01 SP - S10 EP - S11 PB - Thieme Verlag CY - Stuttgart ER - TY - JOUR A1 - Mayr, Ilona A1 - Rößle, Felix T1 - Financial Performance of Mid-and High-Tech Industries in Crisis and Non-Crisis Periods JF - Current Issues of Business and Law N2 - Investments in research and development (R&D) are crucial for innovation and economic growth, yet dis-tinctions between high-tech and mid-tech industries may lead tovarying financial outcomes. Building onFuest et al.(2024), this study examines the financial performance of publicly listed high-and mid-techcompanies from a shareholder'sperspective. Using data from theEU Industrial R&D Investment Scoreboard and LSEGWorkspace for 2,349 listed companies, market-capitalization-weighted portfolios were constructed and benchmarked against global and local market indices. Performance was evaluated using theSharpe ratio and multi-factor asset pricing models (Carhart four-factor and Fama-French five-factor), distinguishing between crisis and non-crisis periods, as well as regional and sectoral variations. Results showthat, at the aggregate level,high-tech portfolios consistentlyand significantly outperform mid-tech and "other" categories on absolute and risk-adjusted bases. Mid-tech indus-tries exhibitresilience during crisis but lower alphasthan high-techindustries,and sectoral heterogeneity high-lightsdiversification benefits. Furthermore, theanalysis reveals investment opportunities in R&D-intensive sec-tors, emphasizing crisis resilience and regional competitiveness. KW - Financial performance KW - mid-tech and high-tech industries Y1 - 2026 UR - https://cibljournal.com/index.php/cibl/article/view/23/13 VL - 2025 IS - 2(9) SP - 14 EP - 26 ER - TY - JOUR A1 - Diener, Michael A1 - Rößle, Felix T1 - Cloud certification to foster digital transformation management in public administrations JF - Current Issues of Business and Law N2 - Public administrations are struggling with the adoption of cloud computing and face more severe challenges in the management than corporations due to special requirements regarding data protection and security. Certification of cloud services is the most promising method in overcoming the current issues. However, this paper examines that existing certificates for cloud service providers don’t match the requirements of public administrations. The analyzed cloud certificates focus strongly on the information security management. But they only have a general look on data protection management. The missing focus on the special requirements of public administrations with regards to geo location of servers, the US cloud act, and especially prevention of foreign state access of PII data (personally identifiable information) is most critical for the use in public administrations. This article shows that a FedRAMP equivalent certification process combined with a European cloud certificate especially designed for the public administration could be the trigger to a successful and faster cloud implementation in the public administration sector in Europe that is currently underdeveloped. Furthermore, the large market with millions of buying public administrations in 27 European Union countries would create attractive business opportunities for private cloud providers, foster the development of new applications and serve the strategic goal of data sovereignty. KW - Public administration, adoption of e-Government, information security management Y1 - 2026 UR - https://cibljournal.com/index.php/cibl/article/view/11/3 VL - 2025 IS - 1(8) SP - 30 EP - 47 ER - TY - JOUR A1 - Holländer, Simone A1 - Bausewein, Claudia A1 - Barton, Jürgen A1 - Neurohr, Claus A1 - Kneidinger, Nikolaus A1 - Schunk, Michaela T1 - Palliativmedizinische Bedarfe und Versorgung von Patient*innen auf der Warteliste zur Lungentransplantation JF - Pneumologie N2 - Hintergrund Für Patient*innen mit fortgeschrittenen Lungenerkrankungen kann eine Lungentransplantation die letzte Therapiemöglichkeit darstellen. Obwohl die Patient*innen eine sehr vulnerable Gruppe sind und eine palliativmedizinische Mitversorgung der Patient*innen gefordert wird, ist diese kaum etabliert. Die vorliegende Studie zielt darauf ab, das Krankheits- und Versorgungsgeschehen von Patient*innen auf der Warteliste zur Lungentransplantation umfassend zu beschreiben sowie Indikatoren für palliativmedizinische Bedarfe und Risikofaktoren für ein Versterben während der Wartezeit zu identifizieren. Material und Methoden Retrospektive Kohortenanalyse von Patient*innen auf der Warteliste zur Lungentransplantation des LMU Klinikums München. Auswertung von routinemäßig erfassten Gesundheitsdaten zwischen dem 01.07.2016 und dem 30.06.2018 mittels deskriptiver Analysen und logistischer Regression. Ergebnisse Insgesamt wurden 242 Patient*innen eingeschlossen, davon waren n=119/242 (49%) weiblich. Bei Aufnahme in die Warteliste betrug das Alter im Mittel 51 Jahre (SD=12,1) und der Lung Allocation Score (LAS) 37,7 (SD=10,9; n=241/242). Die häufigsten Grunderkrankungen waren chronisch obstruktive Lungenerkrankung (n= 91/242, 38%), fibrosierende Lungenerkrankungen (n=73/242, 30%) und zystische Fibrose (n=36/242, 15%). Dazu lagen durchschnittlich 4 weitere chronische Erkrankungen vor (SD=2,5; n=242). 137/242 Patient*innen (57%) erhielten ein Transplantat, 24/242 (10%) verstarben vor einer Transplantation. Während der Beobachtungszeit waren 195/242 Patient*innen (81%) im Median zweimal im LMU Klinikum, 54/195 Patient*innen (28%) für eine Akutbehandlung. Zur Symptomkontrolle erhielten 119/195 Patient*innen (59%) Medikamente mit palliativmedizinischer Relevanz. 5/195 Patient*innen (3%) hatten Kontakt zum Palliativteam. Eine höhere Anzahl an Nebendiagnosen (p=0,03; OR=1,26; KI=1,02–1,54) und die Anzahl an stationären Tagen pro beobachteten Monat (p=0,00; OR=1,32; KI=1,13–1,53) war mit einer höheren Wahrscheinlichkeit assoziiert, während der Wartezeit zu versterben. Diskussion Bei Patient*innen auf der Warteliste zur Lungentransplantation zeigen sich deutliche Indikatoren für einen palliativmedizinischen Versorgungsbedarf, jedoch erhielt nur ein geringer Anteil eine entsprechende Betreuung. Die Implementierung strukturierter Assessments zur Erfassung der Symptomlast und weiterer palliativmedizinischer Bedürfnissen könnten eine gezielte und bedarfsgerechte Integration palliativmedizinischer Teams in die Versorgung ermöglichen. KW - Palliativmedizin KW - Lungentransplantation KW - Routinedatenanalyse KW - Mortalität KW - patientenorientierte Versorgung Y1 - 2026 U6 - https://doi.org/10.1055/a-2746-4201 PB - Georg Thieme Verlag KG ER - TY - JOUR A1 - Schwarz, Benedikt A1 - Kniele, H. A1 - Lindner, Johannes T1 - Automated Process Optimization in a Novel TripleShaft Mixer with Adaptive Mixing Modes JF - Chemie Ingenieur Technik N2 - A novel multi-purpose mixer was set up, which allows the change of the blade angle during the process and provides aflow field with respect to the needs of the mixing task. It features as well as a coaxial stirrer for highly viscous liquids andhence has three degrees of freedom. The stirrer considers the integration and validation of an optimization strategy forthe autonomous identification of an optimum operating point based on automated tests. The validation was conducted ina mixing process with several process input parameters, which is commonly used in industrial applications. The powerdraw of the main stirrer was used as a optimization parameter, representing the power used for dispersing. The speedand direction of the main and secondary stirrers, respectively, as well as the angle of the stirrer blades, were used as inputprocesses. The proposed control scheme automatically identifies and corrects drops in energy dissipation rates. KW - Mixing KW - Optimal operation KW - Reinforcement learning KW - Self-optimization Y1 - 2025 U6 - https://doi.org/10.1002/cite.70060 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Schwarz, Benedikt A1 - Krause, Peter A1 - Lindner, Johannes T1 - A Dynamic Hydrocyclone Adapting to Different Operating Points by Changing the Inlet Area JF - Chemical Engineering and Technology N2 - In this study, a novel hydrocyclone design was developed featuring a variable inlet geometry, which enables adjustment of the inlet area during operation. This allows control over the flow velocity within the cyclone, thereby maintaining a constant tangential velocity despite changes in volumetric flow rate. The prototype demonstrated a constant separation efficiency across a volumetric flow range spanning a factor of two between its minimum and maximum capacities. Two control strategies were investigated: operation at constant pressure drop and operation at constant inlet velocity, both under varying flow rates and inlet geometries. To initially examine the influence of key parameters, hydrocyclones with fixed geometries were fabricated using rapid prototyping and employed in experimental trials. These findings informed the subsequent development and construction of a dynamically adaptive steel prototype capable of dynamic geometrically adjustment. KW - dynamic hydrocyclone KW - particle separation KW - solid–liquid separation Y1 - 2026 U6 - https://doi.org/10.1002/ceat.70154 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Skudlik, Steffi A1 - Lüftl, Katharina A1 - Thalhammer, Regina A1 - Zaglacher, Melina A1 - Müller, Martin T1 - Experiences of members of the care triad on transitioning from home to a nursing home: a qualitative study JF - BMC Geriatrics KW - Transition Y1 - 2026 U6 - https://doi.org/10.1186/s12877-025-06586-1 VL - 25 IS - 1 PB - Springer Nature ER - TY - JOUR A1 - Nick, Carola A1 - Kardas, Leopold A1 - Lüftl, Katharina T1 - „Da prallen dann zwei sehr unterschiedliche Ansichten und auch Ideen aufeinander, mit denen wir konfrontiert sind.“ Eine qualitative Studie zu Schlüsselproblemen der Wohnberatung. JF - QuPuG - Journal für Qualitative Forschung in Pflege- und Gesundheitswissenschaft KW - Patientenedukation, Wohnberatung Y1 - 2026 VL - 12 IS - 1 SP - 27 EP - 38 ER - TY - JOUR A1 - Hartl, Veronika A1 - Ott, Robert A1 - Zelmer, Janika T1 - Motive, didaktische Methoden und Unterstützungsbedarfe von Lehrenden sowie resultierende zeitliche Aspekte in der Weiterbildung an bayerischen Hochschulen JF - Zeitschrift Hochschule Und Weiterbildung (ZHWB) N2 - Die hochschulische Weiterbildung stellt einen zentralen Bestandteil des lebenslangen Lernens dar und hat in den letzten Jahren zunehmend an Bedeutung gewonnen. Im Mittelpunkt des Beitrages steht eine explorative Studie, die die subjektiven Einschätzungen von Lehrenden an bayerischen Hochschulen zu ihren Motiven und didaktischen Methoden in der Weiterbildung untersucht. Besonderes Augenmerk liegt auf den Unterschieden zur grundständigen Lehre, den spezifischen Herausforderungen in der Arbeit mit berufserfahrenen Studierenden sowie dem Unterstützungsbedarf der Lehrenden. Die Daten sind im Kontext einer Bedarfserhebung von Lehrenden der hochschulischen Weiterbildung an bayerischen Hochschulen entstanden und werden in diesem Artikel auch in Hinblick auf Zeitaspekte untersucht. Dabei stehen sowohl die Beweggründe der Lehrenden im Fokus, sich trotz zusätzlichen Zeitaufwands in der Weiterbildung zu engagieren, als auch die didaktischen Anforderungen, die sich aus den zeitlichen Vereinbarkeitskonflikten berufsbegleitend Studierender ergeben. Nicht zuletzt zeigt die Befragung zum Unterstützungsbedarf, dass Lehrende nur begrenzt Zeit für spezifisch auf sie ausgerichtete Fortbildungsangebote haben bzw. bereit sind, diese zu investieren. Insgesamt zeigt sich, dass Zeitmangel sowohl auf Seiten der Lehrenden als auch bei der berufstätigen Zielgruppe hochschulischer Weiterbildung ein zentrales Thema darstellt. KW - Hochschulische Weiterbildung, Hochschuldidaktik, Didaktische Herausforderungen, Motive und Unterstützungsbedarfe von Lehrenden, Zeitstrukturen Y1 - 2025 U6 - https://doi.org/https://doi.org/10.11576/zhwb-8008 VL - 2025 IS - 2 SP - 26 EP - 37 ER - TY - JOUR A1 - Hammes, Sascha A1 - Strohm, Johannes A1 - Geisler-Moroder, David A1 - Weninger, Johannes A1 - Miller, Josef A1 - Hauer, Martin A1 - Zech, Philipp A1 - Wambsganß, Mathias A1 - Pfluger, Rainer T1 - Technical and organizational barriers and solution strategies for the implementation of BIM: An empirical study with a focus on the lighting sector JF - Results in Engineering N2 - Building Information Modelling (BIM) offers considerable potential for the construction industry, particularly in terms of transparency, increased efficiency and integrated data management throughout the entire life cycle of buildings. However, technical and organizational barriers exist, which limit the widespread adoption of BIM. This study therefore employed two large-scale, online surveys to analyze the technical and organizational aspects of BIM implementation in lighting design. The results show that, in addition to technical barriers, successful BIM implementation hinges on knowledge, acceptance, and organizational learning ability. Training, internal processes and a supportive corporate culture are crucial for the effective use of new workflows. Fragmented planning processes and asynchronous participation reinforce technical limitations. To fully realize the potential of BIM, an integrated approach combining technological innovations with organizational learning and collaborative structures is essential. Key solutions include modular, interoperable BIM systems, open interfaces, and standardized data structures. KW - Building information modeling (BIM) KW - Planning KW - Survey KW - Lighting KW - Organization KW - Energy efficiency Y1 - 2025 U6 - https://doi.org/10.1016/j.rineng.2025.108520 VL - 29 PB - Elsevier ER - TY - JOUR A1 - Kellner, Robert T1 - Making Effective Videos and Live Online Lectures Quickly with a Live Composite Format JF - International Journal of Innovation in Science and Mathematics Education (IJISME) N2 - Instructional videos are the dominant mode of content delivery in higher education. They can be an effective tool for delivering educational content, providing flexibility in time and location and improving students' understanding of the material. The effectiveness of such videos may be enhanced by applying principles for multimedia design, which are based on a cognitive theory of multimedia learning. One way to adhere to those principles is by showing the instructor together with additional visuals on screen. Some studies suggest that this may have a positive effect on student learning and overall performance. The combination of the instructor and other visuals is usually done in post-production editing, which can be a time-consuming process. In this paper, a live composition video format is proposed, where the instructor is integrated into the presentation during recording. Using this approach, it is possible for the instructor to interact with added visuals directly, requiring little to no post-production. Furthermore, this method can also be used to enrich and increase the efficacy of synchronous live online lectures. KW - Video KW - Multimedia Learning KW - Online Lectures KW - Live Composite KW - Video-based Learning KW - Online-Lehre KW - Instructor Presence Y1 - 2025 U6 - https://doi.org/10.30722/IJISME.31.05.003 VL - 2023 IS - Vol. 31 No. 5 SP - 29 EP - 39 PB - University of Sydney ER - TY - JOUR A1 - Brandt, Hanna A1 - Steinhilber, Benjamin T1 - Einschätzung von Beschäftigten aus der Pflege zu physischen Belastungen und Akzeptanzfaktoren beim Patient*innen-Transfer mittels Exoskelett – Ergebnisse des qualitativen Studienteils einer Mixed-Methods-Studie. JF - Sonderheft "Exoskelette" der ASU - Zeitschrift für medizinische Prävention. Prävention und Arbeitsgestaltung: Exoskelette in der Arbeitswelt in: Arbeitsmedizin, Sozialmedizin, Umweltmedizin KW - Exoskelette Y1 - 2025 U6 - https://doi.org/10.17147/asu-1-456496 IS - 2025/07 SP - 408 EP - 417 PB - Gentner Verlag CY - Stuttgart ER - TY - JOUR A1 - Stecher, Dominik A1 - Ziegltrum, Lukas A1 - Reiprich, Paul A1 - Fuchs, Christian A1 - Maier, Andreas A1 - Schmidt, Jochen T1 - Neural network synthetic dataset generation for fault detection in district heating substations JF - Smart Energy N2 - District heating systems (DHS) play a vital role in sustainable heating solutions and the decarbonization of the energy sector. However, inefficiencies due to undetected faults in substations result in high return temperatures, increasing heat losses, and limiting the integration of renewable energy sources. The lack of publicly available labeled datasets poses a significant challenge for fault detection using supervised learning models. To address this issue, this study explores three machine learning-based synthetic data generation techniques – time series forecasting, generative adversarial networks (GANs), and fault signature transfer. These methods aim to increase publicly available data either by sharing the generating model or a synthetic dataset. The novelty lies in the combination of advanced supervised machine learning methods being applied to a large, fully labeled data set to create new, equally labeled data for publication, as, to our knowledge, no such dataset has been compiled before. We evaluate our methods on the first-of-its-kind ILSE dataset, which includes real-world smart meter data from 547 substations and 1,162 reviewed faults from a German DHS network, including detailed root cause information. Overall, time series forecasting achieves an MAPE of 3% to 10% for inlet and outlet temperature and 25% to 40% for heat load and flow rate, both of which are within year-to-year variance. For GANs, specifically TimeGAN, we found a discriminative score of about 0.10 compared to 0.24 in the original publication when tested on Energy benchmark data. Fault signature transfer has yet to yield usable results, most likely due to the high variance in the fault signatures, fault duration, and overlapping or multiple root causes. Finally, fault data in the synthetic data is not yet good enough for practical use, e.g. training a fault detector. KW - Synthetic fault generation KW - Data augmentation KW - District heating Y1 - 2025 U6 - https://doi.org/10.1016/j.segy.2025.100206 VL - 20 SP - 100206 PB - Elsevier ER - TY - JOUR A1 - Mazzarella, Renato A1 - Fleischmann, Carolin A1 - Carradini, Stephen A1 - Kapitza, Stephanie T1 - Success Factors of Crowdfunding Projects – A Cross-Country Comparison between USA, Germany and the UK JF - CURRENT ISSUES OF BUSINESS AND LAW N2 - Crowdfunding as an alternative financing method has been extensively studied for its success factors. However, the current success rates of crowdfunding projects remain below 50%. The aim of this article is to investigate the how number of backers, size of the funding goal, and the team favorite award influence a project’s success and to investigate whether the influence of them differs across countries. Through a statistical analysis of over 100,000 crowdfunding projects sourced from the crowdfunding platform Kickstarter, projects originating from the USA, Germany, and the United Kingdom were investigated and compared. Number of backers had the biggest impact on project success. For German projects, the influence of backers was significantly higher than in the UK and USA. The size of the funding goal emerged as the most influential factor in UK and Germany, while the team favorite award did not show a significant influential effect in the whole sample. KW - country comparison KW - Crowdfunding KW - kickstarter KW - start-up financing KW - success factors Y1 - 2025 VL - 1 IS - 8 ER - TY - JOUR A1 - Brandt, Hanna A1 - Steinhilber, Benjamin A1 - Dendorfer, Sebastian A1 - Pfingsten, Andrea T1 - Exoskelettale Unterstützung in der Pflege – Eine Untersuchung der Muskelaktivität, des Hüftflexionswinkels und des subjektiven Belastungsempfinden bei einem simulierten Transfer. JF - Physioscience KW - Exoskelette Y1 - 2025 U6 - https://doi.org/10.1055/s-0045-1808226 VL - 21 IS - S 01 SP - 61 EP - 62 PB - Thieme CY - Berlin ER - TY - JOUR A1 - Brandt, Hanna A1 - Zorn, A1 - Pfingsten, T1 - Markerloses Tracking von Bewegung in der Physiotherapie JF - physioscience KW - Motion capture Y1 - 2025 U6 - https://doi.org/10.1055/s-0043-1777887 VL - 20 IS - S 01 PB - Thieme CY - Berlin ER - TY - JOUR A1 - Kuhn, Michael T1 - Why Engineers Should Read More Novels JF - Chemie Ingenieur Technik (CIT) N2 - Engineering work is much less solid and much airier than often assumed. And precisely for this reason, another rather airy activity is a good training for it: namely the reading of novels. I argue for two benefits of novel reading: first, reading exercises skills central to engineering design, such as imagination and fictionality competence; second, it trains the ethical capabilities of the reader, e.g., the ability of taking over other person's perspectives. These benefits are illustrated by using the examples of different novels in which the focus is laid especially on sustainability topics. Lastly, some uses of novels in engineering education are briefly discussed. Y1 - 2025 U6 - https://doi.org/10.1002/cite.12011 SN - 0009-286X PB - Wiley-VCH ER - TY - JOUR A1 - Leiter, Nina A1 - Wohlschläger, Maximilian A1 - Versen, Martin A1 - Harter, Sonja D. A1 - Kießlich, Tina A1 - Lederer, Franziska A1 - Clauß, Stefanie A1 - Schlosser, Dietmar A1 - Armanu, Emanuel Gheorghita A1 - Eberlein, Christian A1 - Heipieper, Hermann J. A1 - Löder, Martin G. J. A1 - Laforsch, Christian T1 - Effects of defined organic layers on the fluorescence lifetime of plastic materials JF - Analytical and Bioanalytical Chemistry N2 - Plastics have become an integral part of modern life, and linked to that fact, the demand for and global production of plastics are still increasing. However, the environmental pollution caused by plastics has reached unprecedented levels. The accumulation of small plastic fragments—microplastics and nanoplastics—potentially threatens organisms, ecosystems, and human health. Researchers commonly employ non-destructive analytical methods to assess the presence and characteristics of microplastic particles in environmental samples. However, these techniques require extensive sample preparation, which represents a significant limitation and hinders a direct on-site analysis. In this context, previous investigations showed the potential of fluorescence lifetime imaging microscopy (FLIM) for fast and reliable identification of microplastics in an environmental matrix. However, since microplastics receive an environmental coating after entering nature, a challenge arises from organic contamination on the surface of microplastic particles. How this influences the fluorescence signal and the possibility of microplastic detection are unknown. To address this research gap, we exposed acrylonitrile butadiene styrene (ABS) and polyethylene terephthalate (PET) plastic samples to peptides, proteins, bacteria, and a filamentous fungus to induce organic contamination and mimic environmental conditions. We analyzed the fluorescence spectra and lifetimes of the samples using fluorescence spectroscopy and frequency-domain fluorescence lifetime imaging microscopy (FD-FLIM), respectively. Our results demonstrate that reliably identifying and differentiating ABS and PET was possible via FD-FLIM, even in the presence of these biological contaminations. These findings highlight the potential of this technique as a valuable tool for environmental monitoring and plastic characterization, offering a rapid and efficient alternative to currently used analytical methods. Y1 - 2025 U6 - https://doi.org/10.1007/s00216-025-05888-y VL - 417 IS - 16 SP - 3651 EP - 3663 ER - TY - JOUR A1 - Schönau, A1 - Panhuysen, A1 - Sonntag, A1 - Banse, A1 - Seel, A1 - Jachmann, A1 - Schulze, Achim A1 - Hüttl, A1 - Landes, T1 - String outages in photovoltaic plants JF - Renewable Energies N2 - In this work, the factors leading to string outages are examined, and an enhanced method for detecting faults at the sub-string level is presented. Utilizing GPT4-o to analyze O&M reports of 5089 photovoltaic plants, we classified outages according to the affected components and the underlying origin, identifying the most frequent string fault causes. An approach employing CUSUM Charts is introduced to identify substring outages within PV systems effectively. The methodology utilizes fundamental field data that is commonly available in practice. A filtering approach, combined with the use of CUSUM control charts, minimizes false positives, ensuring that only consistent underperformance is flagged as an out-age. The methodology returns far fewer false positives and more stable error intervals for substring outages than a former monitoring approach. Overall, the study demonstrates a significant improvement in detecting substring outages. The advanced methodology enables more effective O&M for PV plants, where substring outages are reliably identified after a short detection time. KW - Photovoltaic Systems Y1 - 2025 U6 - https://doi.org/10.1177/27533735251347879 VL - 3 IS - 1 PB - Sage ER - TY - JOUR A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Degree choosable signed graphs JF - Discrete Mathematics Y1 - 2025 U6 - https://doi.org/10.1016/j.disc.2017.01.007 SN - 0012-365X VL - 340 IS - 5 SP - 882 EP - 891 PB - Elsevier BV ER - TY - JOUR A1 - Schweser, Thomas T1 - DP-degree colorable hypergraphs JF - Theoretical Computer Science Y1 - 2025 U6 - https://doi.org/10.1016/j.tcs.2019.09.010 SN - 0304-3975 VL - 796 SP - 196 EP - 206 PB - Elsevier BV ER - TY - JOUR A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Partitions of multigraphs under minimum degree constraints JF - Discrete Applied Mathematics Y1 - 2025 U6 - https://doi.org/10.1016/j.dam.2018.10.016 SN - 0166-218X VL - 257 SP - 269 EP - 275 PB - Elsevier BV ER - TY - JOUR A1 - Bang‐Jensen, Jørgen A1 - Bellitto, Thomas A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - On DP‐coloring of digraphs JF - Journal of Graph Theory N2 - DP‐coloring is a relatively new coloring concept by Dvořák and Postle and was introduced as an extension of list‐colorings of (undirected) graphs. It transforms the problem of finding a list‐coloring of a given graph with a list‐assignment to finding an independent transversal in an auxiliary graph with vertex set . In this paper, we extend the definition of DP‐colorings to digraphs using the approach from Neumann‐Lara where a coloring of a digraph is a coloring of the vertices such that the digraph does not contain any monochromatic directed cycle. Furthermore, we prove a Brooks’ type theorem regarding the DP‐chromatic number, which extends various results on the (list‐)chromatic number of digraphs. Y1 - 2025 U6 - https://doi.org/10.1002/jgt.22535 SN - 0364-9024 VL - 95 IS - 1 SP - 76 EP - 98 PB - Wiley ER - TY - JOUR A1 - Bang-Jensen, Jørgen A1 - Bellitto, Thomas A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Hajós and Ore Constructions for Digraphs JF - The Electronic Journal of Combinatorics Y1 - 2025 U6 - https://doi.org/10.37236/8942 SN - 1077-8926 VL - 27 IS - 1 PB - The Electronic Journal of Combinatorics ER - TY - JOUR A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Partitions of hypergraphs under variable degeneracy constraints JF - Journal of Graph Theory N2 - The paper deals with partitions of hypergraphs into induced subhypergraphs satisfying constraints on their degeneracy. Our hypergraphs may have multiple edges, but no loops. Given a hypergraph and a sequence of vertex functions such that for all , we want to find a sequence of vertex disjoint induced subhypergraphs containing all vertices of such that each hypergraph is strictly ‐degenerate, that is, for every nonempty subhypergraph there is a vertex such that . Our main result in this paper says that such a sequence of hypergraphs exists if and only if is not a so‐called hard pair. Hard pairs form a recursively defined family of configurations, obtained from three basic types of configurations by the operation of merging a vertex. Our main result has several interesting applications related to generalized hypergraph coloring problems. Y1 - 2025 U6 - https://doi.org/https://doi.org/10.1002/jgt.22575 SN - 0364-9024 VL - 96 IS - 1 SP - 7 EP - 33 PB - Wiley ER - TY - JOUR A1 - Schweser, Thomas T1 - Generalized hypergraph coloring JF - Discussiones Mathematicae Graph Theory Y1 - 2025 U6 - https://doi.org/10.7151/dmgt.2168 VL - 41 IS - 1 SP - 103 EP - 121 ER - TY - JOUR A1 - Bang-Jensen, Jørgen A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Digraphs and Variable Degeneracy JF - SIAM Journal on Discrete Mathematics Y1 - 2025 U6 - https://doi.org/10.1137/20M1386827 SN - 0895-4801 VL - 36 IS - 1 SP - 578 EP - 595 PB - Society for Industrial & Applied Mathematics (SIAM) ER - TY - JOUR A1 - von Postel, Justus A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Point Partition Numbers: Perfect Graphs JF - Graphs and Combinatorics Y1 - 2025 U6 - https://doi.org/10.1007/s00373-021-02410-w SN - 0911-0119 VL - 38 IS - 2 PB - Springer Science and Business Media LLC ER - TY - JOUR A1 - von Postel, Justus A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Point partition numbers: Decomposable and indecomposable critical graphs JF - Discrete Mathematics N2 - In the present paper we extend the following three coloring concepts for the class of finite undirected graphs having multiple edges but no loops. First of all, the generalized coloring concept, in which the same colored vertices of a graph induce a subgraph satisfying a prescribed graph property. Secondly, the concept of variable degeneracy, which was introduced by Borodin, Kostochka and Toft in 2000; this makes it possible to give a common generalization of the point partition number and the list chromatic number. Finally, the DP-coloring concept as introduced by Ďvorák and Postle in 2018, where a list assignment of a graph is replaced by a cover. Combining these three coloring concepts leads to generalizations of various classical coloring results, including the theorems of Brooks, of Gallai, and of Erdős, Rubin and Taylor. Our main result is a DP-version of a theorem about partitions of graphs into a fixed number of induced subgraphs with bounded variable degeneracy due to Borodin, Kostochka, and Toft. Y1 - 2025 U6 - https://doi.org/10.1016/j.disc.2022.112903 SN - 0012-365X VL - 345 IS - 8 PB - Elsevier BV ER - TY - JOUR A1 - Kostochka, Alexandr V. A1 - Schweser, Thomas A1 - Stiebitz, Michael T1 - Generalized DP-colorings of graphs JF - Discrete Mathematics N2 - In the present paper we extend the following three coloring concepts for the class of finite undirected graphs having multiple edges but no loops. First of all, the generalized coloring concept, in which the same colored vertices of a graph induce a subgraph satisfying a prescribed graph property. Secondly, the concept of variable degeneracy, which was introduced by Borodin, Kostochka and Toft in 2000; this makes it possible to give a common generalization of the point partition number and the list chromatic number. Finally, the DP-coloring concept as introduced by Ďvorák and Postle in 2018, where a list assignment of a graph is replaced by a cover. Combining these three coloring concepts leads to generalizations of various classical coloring results, including the theorems of Brooks, of Gallai, and of Erdős, Rubin and Taylor. Our main result is a DP-version of a theorem about partitions of graphs into a fixed number of induced subgraphs with bounded variable degeneracy due to Borodin, Kostochka, and Toft. Y1 - 2025 U6 - https://doi.org/10.1016/j.disc.2022.113186 SN - 0012-365X VL - 346 IS - 11 PB - Elsevier BV ER - TY - JOUR A1 - Götze, Kornelia A1 - Bausewein, Claudia A1 - Chernyak, Nadezda A1 - Feddersen, Berend A1 - Fuchs, Angela A1 - Hummers, Eva A1 - Icks, Andrea A1 - Kirchner, Änne A1 - Klosterhalfen, Stephanie A1 - Kranefeld, Nicola A1 - Laag, Sonja A1 - Lezius, Susanne A1 - Meyer, Gabriele A1 - Montalbo, Joseph A1 - Nauck, Friedemann A1 - Pepić, Amra A1 - Przybylla, Susanne A1 - Rosu, Irina A1 - Schildmann, Jan A1 - Schunk, Michaela A1 - Stanze, Henrikje A1 - Stöhr, Andreas A1 - Thilo, Nancy A1 - Vogel, Christiane A1 - Zapf, Antonia A1 - Marckmann, Georg A1 - in der Schmitten, Jürgen T1 - Care consistency with care preferences in nursing homes: A cluster-randomized study of the effects of an advance care planning program (BEVOR). T1 - Präferenzkonsistente Behandlung in Pflegeeinrichtungen: Clusterrandomisierte Studie zu den Effekten eines Advance-Care-Planning-Programms (BEVOR) JF - Deutsches Ärzteblatt international N2 - Hintergrund: Diese Studie (NCT04333303) untersuchte, ob eine komplexe Advance-Care-Planning(ACP)-Intervention die präferenzkonsistente Behandlung bei Bewohnerinnen und Bewohnern von Pflegeeinrichtungen verbessert. Methode: 44 deutsche Pflegeeinrichtungen wurden zufällig einer auf individueller, institutioneller und regionaler Ebene konzipierten ACP-Intervention versus Kontrolle zugeordnet. Die Hospitalisierungsrate (primärer Endpunkt) wurde als Surrogat für präferenzkonsistente Behandlungen auf Einrichtungsebene für den 12-monatigen Beobachtungszeitraum analysiert. Sekundäre Endpunkte waren Prozess- und klinische Parameter einschließlich präferenzkonsistenter Behandlung (Analyseebene: Bewohnerinnen und Bewohner/Pflegeeinrichtung). Die Endpunkte wurden mit Poisson- und logistischen Regressionsmodellen mit Incidence Rate Ratios (IRR) und Odds Ratios (OR) als Effektschätzern gemäß Intention-to-treat-Prinzip ausgewertet. Ergebnisse: Die Intervention erfolgte in 23/44 Pflegeeinrichtungen. Die Hospitalisierungen unterschieden sich nicht signifikant zwischen den Gruppen (IRR 1,0; 95-%-KI: [0,97; 1,1]), sanken jedoch ähnlich stark in beiden Gruppen nach Ausbruch der COVID-19-Pandemie. Die Raten präferenzkonsistenter Behandlungsentscheidungen waren vergleichbar (OR 0,9 [0,4; 1,9]). Die vordefinierte explorative Analyse legt nahe, dass präferenzkonsistente Behandlungen in den 6/23 Pflegeeinrichtungen, die Adhärenzkriterien erfüllten, wahrscheinlicher waren (OR 1,9 [0,7; 5,3]). Schriftliche Notfallpläne überwogen erheblich in der Interventionsgruppe (IRR 11,6 [8,2; 16,4]) und noch stärker in den adhärenten Pflegeeinrichtungen (IRR 30,1 [15,7; 57,6]). Schlussfolgerung: Die Intervention drang nicht ausreichend durch, insbesondere aufgrund der COVID-19-Pandemie, die ihrerseits mögliche Schwächen der Intervention überlagert haben könnte. Die Frage, ob die Intervention präferenzkonsistente Behandlungen fördern kann oder nicht, kann daher anhand dieser Studie nicht beurteilt werden. Explorative Analysen legen jedoch nahe, dass individuelle ACP-Gespräche in Verbindung mit institutioneller ACP-Organisationsentwicklung die Chancen für präferenzkonsistente Behandlungen erhöhen. Y1 - 2025 U6 - https://doi.org/10.3238/arztebl.m2025.0077 IS - 122 SP - 379 EP - 386 ER - TY - JOUR A1 - Herz, Jonas A1 - Muscat, Dirk A1 - Strübbe, Nicole T1 - The Influence of Fillers on the Reinforcement Capabilities of Polypropylene Based Mono-Material and Core-Shell Fibers in Concrete, a Comparison JF - Polymers N2 - Noncorrosive concrete reinforcement, such as polymer fibers, is needed to overcome the current issues caused by corroded steel reinforcements. Fibers made of polypropylene show a low bonding behavior in concrete. Fillers can help to overcome this issue but often lead to reduced mechanical properties. Core-shell fibers, which split the mechanical properties and the bonding behavior between the core and the shell component, could be a solution. This study investigates mono-material and core-shell fibers produced with calcium carbonate and bentonite fillers and compares their behavior in tensile tests, density measurements, contact angle measurements, topography measurements, single fiber pull-out tests, reflected light microscopy, and thermogravimetric analysis. The fillers caused an increased drawability, resulting in higher mechanical properties. Further, in the core-shell fibers, the calcium carbonate increased the surface roughness, which led to a better anchoring of the fiber in concrete, which was also visible in the deformation during pull-out observed in reflected light microscopy pictures. The thermogravimetric analysis showed a delay in onset of degradation for fibers containing bentonite. KW - fibers KW - extrusion KW - coextrusion KW - polymer drawing KW - polypropylene KW - calcium carbonate KW - bentonite KW - core-shell KW - mono-material KW - concrete Y1 - 2025 U6 - https://doi.org/10.3390/polym17131781 VL - 17 IS - 13 PB - MDPI CY - Basel ER - TY - JOUR A1 - Helbig, Michael T1 - On the Lifting of Nichols Algebras JF - Communications in Algebra N2 - Nichols algebras are a fundamental building block of pointed Hopf algebras. Part of the classification program of finite-dimensional pointed Hopf algebras with the lifting method of Andruskiewitsch and Schneider is the determination of the liftings, i.e., all possible deformations of a given Nichols algebra. Based on recent work of Heckenberger about Nichols algebras of diagonal type we compute explicitly the liftings of all Nichols algebras with generalized Cartan matrix of type A 2, some Nichols algebras with generalized Cartan matrix of type B 2, and some Nichols algebras of two Weyl equivalence classes of non-standard type giving new classes of finite-dimensional pointed Hopf algebras. Y1 - 2012 U6 - https://doi.org/10.1080/00927872.2011.568029 VL - 40 IS - 9 SP - 3317 EP - 3351 PB - Informa UK Limited ER - TY - JOUR A1 - Helbig, Michael T1 - Ideals for character Hopf algebras JF - Journal of Pure and Applied Algebra N2 - We give a description in terms of generators and relations of character Hopf algebras. These Hopf algebras play a central role in the classification of pointed Hopf algebras and can be seen as generalized quantum groups. Furthermore, we get as a consequence an analog presentation of Nichols algebras of diagonal type. Y1 - 2025 U6 - https://doi.org/10.1016/j.jpaa.2013.08.003 VL - 218 IS - 4 SP - 634 EP - 641 PB - Elsevier ER - TY - JOUR A1 - Dietlinger, Flora Katrin A1 - Kasparik, Barbara A1 - Unterhitzenberger, Johanna A1 - Saupe, Laura Bebra A1 - Rosner, Rita T1 - Challenges and facilitators in treating unaccompanied young refugees with posttraumatic stress disorder in a dissemination trial – a qualitative study with psychotherapists JF - Child and Adolescent Psychiatry and Mental Health KW - unaccompanied young refugee Y1 - 2025 U6 - https://doi.org/10.1186/s13034-025-00873-w VL - 19 PB - Springer ER - TY - JOUR A1 - Fieber, Andreas A1 - Dirr, Luca T1 - Kommunale Nachhaltigkeitsberichterstattung: Offingen geht voran JF - UmweltBriefe N2 - Die aktive Beteiligung der Kommunen spielt eine zentrale Rolle, um die in der Deutschen Nachhaltigkeitsstrategie 2021 festgelegten Nachhaltigkeitsziele Deutschlands zu verwirklichen. Mit der Gemeinde Offingen, Landkreis Günzburg, hat eine weitere Gemeinde unter 5 000 Einwohner einen kommunalen Nachhaltigkeitsbericht erstellt. Die ländlich geprägte Gemeinde möchte damit zu mehr Transparenz und Nachhaltigkeit beitragen. Ein Praxisbericht. KW - Nachhaltigkeitsbericht KW - Kommune KW - Reporting KW - Sustainable Development Goals SDGs Y1 - 2025 U6 - https://doi.org/Keine Angabe VL - keine Angabe IS - 2 SP - 23 EP - 23 PB - Walhalla Fachverlag CY - Regensburg ER - TY - JOUR A1 - Panahi, Benjamin A1 - Sandor, Viktor A1 - Tola, Imrane T1 - Das interne Moder der Feldafinger Brandkasse goes R JF - DAV Journal N2 - In diesem Artikel wird zum einen die Entwicklung eines Economic Scenario Generators zum anderen die Umsetzung des gesamten internen Modells der Feldafinger Brandkasse (FFBK) in R beschrieben. So erhält die FFBK ein vollständiges internes Modell in einer open source Programmierung. KW - FFBK_Feldafinger Brandkasse KW - Modellvalidierung KW - Schadenversicherung Y1 - 2025 IS - 04/24 SP - 280 EP - 286 PB - Deutsche Aktuarvereinigung (DAV) e.V. CY - Köln ER - TY - JOUR A1 - Herz, Jonas A1 - Schusser, Verena A1 - Muscat, Dirk A1 - Strübbe, Nicole T1 - Cold-Drawn Wood-Filled Polybutylene Succinate Macro-Fibers as a Reinforcing Material for Concrete JF - Polymers N2 - The corrosive behavior of steel reinforcements causes issues in the concrete industry. To overcome this issue, alternative noncorrosive reinforcements such as polymer fibers could be used. However, as environmental protection becomes more important, sustainability must also be considered in the solution. An alternative to polymers based on raw oil is bio-based polymers. This study investigates the suitability of polymer fibers produced from polybutylene succinate together with cellulose and wood fillers as concrete reinforcements. Different mixtures of polybutylene succinate, cellulose, and wood fillers were created, and fibers were produced using a multiple drawing process. The fibers were tested using tensile tests, a single-fiber pull-out test, contact angle measurements, reflected light microscopy, density measurements, and thermogravimetric analysis. The fillers were shown to decrease the mechanical properties as the particle size and filler amount increased, resulting in a reduction in Young’s modulus and tensile strength of 55% and 70%, respectively, while adhesion to concrete increased with particle size from 0.31 ± 0.02 N/mm2 without filler to 0.90 ± 0.10 N/mm2 for the best-performing material combination. Reflected light microscopy images show changes in the fiber surface before and after pull-out. The fiber density decreased from 1.26 ± 0.05 g/cm3 to 0.91 ± 0.04 g/cm3 with an increasing filler amount and particle size for a compound with 10 weight percent of wood filler 1. The fiber thermal stability decreased slightly with the addition of filler. The greatest effect was a reduction in the temperature to ≈58 °C at 1% weight loss when 10 weight percent of wood was added. This study proves the possibility of using bio-based materials as concrete reinforcements. KW - fibers KW - compounding KW - extrusion KW - multiple drawing KW - polybutylene succinate KW - microcrystalline cellulose KW - wood particles KW - concrete Y1 - 2025 U6 - https://doi.org/https://doi.org/10.3390/polym17030403 VL - 17 IS - 3 PB - MDPI CY - Basel ER - TY - JOUR A1 - Eisingerich, Andreas B. A1 - MacInnis, Deborah J. A1 - Fleischmann, Martin T1 - Moving Beyond Trust: Making Customers Trust, Love, and Respect a Brand JF - MIT Sloan Management Review KW - branding, brand trust, brand love, brand respect Y1 - 2025 VL - 2021 ER - TY - JOUR A1 - Bergmann, Mona A1 - Fettke, Ulrike T1 - Organizing for Education. A Munich Case Study on (female) migrant engagement in the 1970ies and 1980ies. JF - Zeitschrift für erziehungswissenschaftliche Migrationsforschung KW - education KW - munich KW - migrant engagement KW - 1970ies KW - 1980ies Y1 - 2024 U6 - https://doi.org/10.3224/zem.v2i2.05 IS - 2 (2) ER - TY - JOUR A1 - Fettke, Ulrike A1 - Bergmann, Mona A1 - Wacker, Elisabeth T1 - Wohnungsleerstand partizipativ wandeln. Wohnbestandraum als Ressource sehen und die Wiedernutzung gemeindebasiert gestalten JF - INDES Zeitschrift für Politik und Gesellschaft Y1 - 2024 U6 - https://doi.org/10.13109/9783666800399.101 SP - 101 EP - 110 ER - TY - JOUR A1 - Bergmann, Mona A1 - Ulrike, Fettke A1 - Wacker, Elisabeth T1 - Opening doors to affordable rental housing. Perspectives of private suburban owners with unused housing space JF - Urban Planning KW - homeownership KW - housing affordability KW - private landlords KW - rental prices KW - suburban housing KW - unused housing space Y1 - 2024 U6 - https://doi.org/10.17645/up.8595 VL - 9 ER - TY - JOUR A1 - Kastl, Andrea A1 - Rauner, Yvonne A1 - Mayer-Huber, Sandra A1 - Oestreich, Claudia A1 - Benstetter, Franz A1 - Fettke, Ulrike T1 - Stakeholder needs assessment for developing ageing in place solutions – a qualitative study JF - BMC Geriatrics KW - Stakeholder needs analysis KW - Design thinking KW - Older adults KW - Aeging in place KW - Ambient assisted living KW - User-centered design Y1 - 2024 U6 - https://doi.org/10.1186/s12877-024-04722-x IS - 24:104 ER -