TY - CHAP A1 - Çelik, Fatma A1 - Witt, Nina A1 - Stelzmann, Daniela ED - Späte, Julius ED - Stix, Daniela Cornelia ED - Endter, Codula ED - Krauskopf, Karsten T1 - Digital Streetwork als Interventionsmaßnahme gegen Sexuelles Online Grooming T2 - #GesellschaftBilden im Digitalzeitalter: Perspektiven Sozialer Arbeit auf technologische Herausforderungen KW - FBSK_Webseite KW - Prävention KW - Kindesmissbrauch (Sexueller Missbrauch) KW - Cyber-Grooming KW - Streetwork KW - Soziales Netzwerk Y1 - 2025 SN - 978-3-8309-4997-8 SP - 79 EP - 91 PB - Waxmann CY - Münster ER - TY - JOUR A1 - Çelik, Fatma A1 - Schäfermeier, Esther A1 - Stelzmann, Daniela A1 - Arraf, Samia A1 - Matthies, Eliane A1 - Bremerich, Laurin A1 - Roggenkamp, Stefan A1 - Schneider, Silvia A1 - Schopf, Kathrin T1 - PsyGeCo – Psychisch Gesund in Zeiten von Corona: Eine Evaluationsstudie zur Wirksamkeit einer psychoedukativen Kurzmaßnahme an weiterführenden Schulen JF - Kindheit und Entwicklung. Zeitschrift für Klinische Kinderpsychologie N2 - Die Adoleszenz gilt aufgrund intensiver Veränderungsprozesse nicht nur als vulnerable Phase für Fehlanpassungen, sondern auch als sensible Phase für Interventionen. Neben normativen Herausforderungen hat die COVID-19-Pandemie als nicht normative Krise zu einer erhöhten Belastung in dieser Altersgruppe geführt. In der Bewältigung dieser Herausforderungen gilt die allgemeine Selbstwirksamkeit (SWE) als Schutzfaktor, die im Rahmen der vorgestellten ressourcenorientierten Maßnahme gestärkt werden sollte. Zur Prüfung der Akzeptanz und Wirksamkeit der manualisierten Maßnahme wurde eine Wirksamkeitsstudie mit Prä-Post-Design (t0-t2) durchgeführt und evaluiert. An der Maßnahme haben N=192 Jugendliche (Range: 12 – 17 Jahre) teilgenommen. Es zeigte sich ein kurzfristiger, kleiner Effekt auf die SWE, welcher im Follow-up nicht mehr nachweisbar war. Die differentielle Wirksamkeit der Maßnahme wird vor dem Hintergrund von Faktoren wie der gesundheitsbezogenen Lebensqualität und dem sozioökonomischen Status diskutiert. KW - HSD Publikationsfonds KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44523 SN - 0942-5403 VL - 33 IS - 2 SP - 111 EP - 124 PB - Hogrefe CY - Göttingen ER - TY - CHAP A1 - Çelik, Fatma A1 - Karabaş, Beyza ED - Stelzmann, Daniela ED - Ischebeck, Josephine T1 - You don’t talk about that!? – A survey on prospective social worker’s knowledge on CSA and their use of media T2 - Child Sexual Abuse and the Media N2 - Well-trained professionals, like social workers, are essential for effective prevention of child sexual abuse (CSA). The present study assesses knowledge and knowledge acquisition regarding CSA in social work undergraduate students in a cross-sectional design. Three options for acquisition were assumed: 1) professional education, 2) media consumption, or 3) own experiences of CSA. Results indicated no improvement of knowledge through any of the prior mentioned sources and a high variability in knowledge. In contrast to expectations, personal experiences of CSA were associated with a higher threshold in recognition of CSA incidents. The meaning of the results for prevention and intervention are discussed by highlighting the role of taboos in professional education and the effects of media coverage. KW - CSA KW - social work KW - education KW - prevention KW - knowledge Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44412 SN - 978-3-7489-0440-3 SP - 123 EP - 134 PB - Nomos Verlagsgesellschaft CY - Baden-Baden ER - TY - RPRT A1 - Ziehe, Nikola A1 - Stoll, Raina ED - Kalmring, Dirk T1 - Die Wirkung von Kundenbindungsmaßnahmen auf das Einkaufsverhalten im Einzelhandel : Treueprogramme versus Kundenkarten im deutschen Lebensmitteleinzelhandel T1 - The Effect of Customer Loyalty Programs on the Shopping Behavior in Retail : Loyalty Programs versus Loyalty Cards in the German Food Retail N2 - Die vorliegende empirische Studie soll zeigen, wie sich Bonusprogramme, speziell Treueprogramme und Kundenkarten, auf das Einkaufsverhalten von Konsumenten im deutschen Lebensmitteleinzelhandel auswirken. Die Studie wurde von Bachelorstudenten des Studiengangs „Business Administration“ der Fachhochschule Düsseldorf durchgeführt. Die Ergebnisse der Studie beruhen auf zwei verschiedenen Untersuchungsteilen: Einerseits hat eine mündliche Befragung der Konsumenten im Lebensmitteleinzelhandelsgeschäft stattgefunden. Es sollte die Wirkung von Treueprogrammen und Kundenkarten auf das Einkaufsverhalten und die Kundenbindung im Lebensmitteleinzelhandel herausgefunden werden. Des Weiteren wurden mehrere Expertengespräche mit Führungskräften durchgeführt, die sich in ihrem beruflichen Umfeld intensiv mit Kundenbindungsmaßnahmen beschäftigen. Hierbei war von Interesse, welche Kundenbindungsmaßnahmen mit welchem Erfolg durchgeführt werden und wie sich diese auf das Einkaufsverhalten der Konsumenten auswirken. Ebenso sollte herausgefunden, was bei den Konsumenten besser wirkt: Treueprogramme oder Kundenkarten. Als Fazit lässt sich festhalten, dass Bonusprogramme als Instrument der Kundenbindung geeignet sind und eine hohe Wirkung auf das Einkaufsverhalten und die Einstellung der Konsumenten im deutschen Lebensmitteleinzelhandel haben. Deutlich wurde, dass der Erfolg eines Bonusprogrammes vorrangig von der Gestaltung des Programmes durch den Anbieter abhängt. Ein interessantes Bonusprogramm mit attraktiven Prämien ist für die Konsumenten ausschlaggebend. N2 - This empirical study will show how bonus programs, particularly loyalty programs and loyalty cards, have an impact on the purchasing behavior of consumers in the german food retail trade. The study was carried out by students of the Bachelor degree program in Business Administration from the University of Applied Sciences Duesseldorf. The study results are based on two study parts: firstly, there has been an oral survey of consumers in the food retail business. To study the effect of loyalty programs and loyalty cards on the purchasing behavior and customer loyalty will be found in the food retail trade. In addition, several forces were conducted expert interviews with managers who are intensively engaged in their professional environment with customer loyalty programs. In this case was of interest to which customer loyalty measures are carried out with what success and how they affect the purchasing behavior of consumers. It should also found out what at the consumers better works: loyalty programs or customer cards. In conclusion, it is fair to say that bonus programs are suitable as a tool for customer loyalty and a high impact on the purchasing behavior and attitudes of consumers in the german food retail trade. It became clear that the success of a bonus program primarily depends on the design of programs by the retail trader. An interesting bonus program with attractive premiums is critical to the consumers. T3 - Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule Düsseldorf - 17 KW - Kundenbindung KW - Kundenbindungsmaßnahmen KW - Treueprogramme KW - Kundenkarten KW - Payback KW - customer loyalty KW - customer loyalty programs KW - loyalty programs KW - loyalty cards KW - FHD Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-6588 N1 - Erster / früherer Titel der Reihe: Forschungsberichte des Fachbereichs Wirtschaft der Fachhochschule Düsseldorf bis 2014 IS - 17 CY - Düsseldorf ER - TY - RPRT A1 - Ziehe, Nikola A1 - Stevens, Sarah ED - Kalmring, Dirk T1 - Erfolgreiche Interaktion mit Digital Natives im Social Commerce: Eine theoretische und explorative Analyse von Erfolgsfaktoren in der Kunden-Kunden-Kommunikation T1 - Successful Interaction with Digital Natives in Social Commerce: Theoretical and Explorative Analysis of Success Factors in the Customer-Customer-Communication N2 - Eine Vielzahl von Herausforderung stellt die kommerzielle Verbreitung des Internets und die damit verbundene bidirektionale Kommunikation nicht nur zwischen Konsumenten und Unternehmen, sondern ebenso unter Konsumenten, für Unternehmen dar. Die Unternehmen stehen vor der Notwendigkeit, die Interaktion insbesondere mit den jungen Menschen der Gesellschaft, den Digital Natives, gestalten zu müssen. Denn allzu häufig sehen sich im besonderen Konsumgüterhersteller in der Pflicht, auf bereits im Internet entwickelte Meinungen und Ideen, die bisweilen schnell auf die klassischen Medien überspringen können, sofort reagieren zu müssen. Wenn diese verbreiteten Informationen negative Presse beispielsweise in Form von „Shitstorms“ beinhalten und somit das Image eines Unternehmens Schaden nehmen könnte, so geraten Unternehmen binnen kurzer Zeit unter Druck. Damit Unternehmen zukünftig eine erfolgreiche Interaktion speziell mit Digital Natives erreichen können, werden in der vorliegenden Arbeit zunächst psychografische Merkmale und Motive für die Internetnutzung von Digital Natives näher beleuchtet. Danach werden theoretische Erklärungsansätze für die Kunden-Kunden-Kommunikation erarbeitet. Auf Basis dieser Resultate werden Hypothesen aufgestellt und im Anschluss mittels einer Expertenbefragung sowie einer Best Practice-Analyse evaluiert. Ferner wird das Handlungsspektrum für Konsumgüterhersteller in der Interaktion mit Digital Natives aufgezeigt. Abschließend werden die sechs Erfolgsfaktoren für die Interaktion mit Konsumenten im Social Commerce anschaulich dargestellt. N2 - The commercial spreading of the internet and with it the two-way communication between customers and companies as well as among customers poses a multitude of challenges for companies, particularly consumer goods manufacturers. Companies are confronted with the necessity to interact especially with the young people within society, the Digital Natives. All to often consumer goods manufacturers have to react immediately to already developed opinions and ideas in the internet, which can sometimes quickly spread to the traditional media. If this distributed information includes negative press, for example in the form of "Shit Storms", which may damage the companies image, then companies come under pressure to act swiftly. To ensure that companies will in the future be able to interact successfully, especially with digital natives, this paper offers an insight into psychographic characteristics and motivations Internet unse among digital natives. Later on theoretical explanations for the customer-customer-communication will be developed. Based on these results hypotheses will be modelled. Subsequently the hypotheses will be evaluated by experts and subjected to a best practice analysis. Furthermore, the spectrum of corporate action of consumer goods manufactures in interaction with digital natives will be shown. Finally, the six success factors for the interaction with consumers in social commerce will be represented graphically. T3 - Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule Düsseldorf - 22 KW - Kunden-Kunden-Kommunikation KW - Erfolgsfaktoren KW - Social Commerce KW - Digital Natives KW - Interaktion KW - Customer-Customer-Communication KW - Success Factors KW - FHD Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-7542 N1 - Erster / früherer Titel der Reihe: Forschungsberichte des Fachbereichs Wirtschaft der Fachhochschule Düsseldorf bis 2014 IS - 22 CY - Düsseldorf ER - TY - JOUR A1 - Zeller, Michael C. A1 - Virchow, Fabian T1 - Far-right leadership in comparison: shifts and continuities in German-speaking movements JF - Social Movement Studies N2 - Leadership has long been acknowledged as a crucial feature of social movement activity. Theorisation has delved into the types of leadership and, more recently, the activities performed by leaders. However, comparative research on leadership and detection of any changes over time is scant. Our paper attends to these tasks by looking at the activities of two German-speaking far-right leaders. For many years, Christian Worch was one of the most active and influential neo-Nazi leaders in Germany, communicating much of his activity and strategy in the mid-2000s through a regular circular (Rundbriefe). Similarly, Martin Sellner, both as leader of the Identitarian movement and independent activist, today exercises an outsized role in the German-speaking far-right scene, including through his regular publications in the magazines Compact and Sezession. Our paper uses data of Worch’s and Sellner’s writings, scraped from webpages and gathered from archives, in a mixed-methods comparative design to identify the tasks performed by these leaders, and how frequently. Quantitative text analysis techniques guide the qualitative evaluation of leaders’ activities and reveal shifts – and continuities – in far-right movement leadership. The paper thereby contributes to scholarship on an important aspect of contemporary far-right movements as well as broader social movement literature on the topic of leadership. KW - Rechtsradikalismus KW - Soziale Bewegung KW - Politische Führung KW - Worch, Christian KW - Sellner, Martin KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50521 SN - 1474-2837 SP - 1 EP - 23 PB - Informa ER - TY - INPR A1 - Yuwono, Steve A1 - Schwung, Dorothea A1 - Schwung, Andreas T1 - Transfer learning of state-based potential games for process optimization in decentralized manufacturing systems T2 - arXiv N2 - This paper presents a novel transfer learning approach in state-based potential games (TL-SbPGs) for enhancing distributed self-optimization in manufacturing systems. The approach focuses on the practical relevant industrial setting where sharing and transferring gained knowledge among similar-behaved players improves the self-learning mechanism in large-scale systems. With TL-SbPGs, the gained knowledge can be reused by other players to optimize their policies, thereby improving the learning outcomes of the players and accelerating the learning process. To accomplish this goal, we develop transfer learning concepts and similarity criteria for players, which offer two distinct settings: (a) predefined similarities between players and (b) dynamically inferred similarities between players during training. We formally prove the applicability of the SbPG framework in transfer learning. Additionally, we introduce an efficient method to determine the optimal timing and weighting of the transfer learning procedure during the training phase. Through experiments on a laboratory-scale testbed, we demonstrate that TL-SbPGs significantly boost production efficiency while reducing power consumption of the production schedules while also outperforming native SbPGs. KW - Maschinelles Lernen KW - Spieltheorie KW - Produktionssystem KW - Optimierung Y1 - 2024 U6 - https://doi.org/10.48550/arXiv.2408.05992 PB - arXiv ER - TY - INPR A1 - Yuwono, Steve A1 - Schwung, Dorothea A1 - Schwung, Andreas T1 - Distributed Stackelberg Strategies in State-based Potential Games for Autonomous Decentralized Learning Manufacturing Systems N2 - This article describes a novel game structure for autonomously optimizing decentralized manufacturing systems with multi-objective optimization challenges, namely Distributed Stackelberg Strategies in State-Based Potential Games (DS2-SbPG). DS2-SbPG integrates potential games and Stackelberg games, which improves the cooperative trade-off capabilities of potential games and the multi-objective optimization handling by Stackelberg games. Notably, all training procedures remain conducted in a fully distributed manner. DS2-SbPG offers a promising solution to finding optimal trade-offs between objectives by eliminating the complexities of setting up combined objective optimization functions for individual players in self- learning domains, particularly in real-world industrial settings with diverse and numerous objectives between the sub-systems. We further prove that DS2-SbPG constitutes a dynamic potential game that results in corresponding converge guarantees. Experimental validation conducted on a laboratory-scale testbed highlights the efficacy of DS2-SbPG and its two variants, such as DS2-SbPG for single-leader-follower and Stack DS2-SbPG for multi-leader-follower. The results show significant reductions in power consumption and improvements in overall performance, which signals the potential of DS2-SbPG in real-world applications. KW - Maschinelles Lernen KW - Produktionssystem KW - Spieltheorie KW - Optimierung Y1 - 2024 U6 - https://doi.org/10.48550/arXiv.2408.06397 PB - arXiv ER - TY - JOUR A1 - Yuwono, Steve A1 - Schwung, Dorothea A1 - Schwung, Andreas T1 - Automated leaders and followers selection in Stackelberg games for modular manufacturing systems JF - Journal of Intelligent Manufacturing N2 - We propose an automated data-driven mechanism to evaluate each actuator’s influence on modular manufacturing system objectives. This mechanism enables automated leader and follower selection in Stackelberg games, which have gained traction in engineering. While leaders typically hold greater priority or influence, systematic methods for assigning leaders and followers remain limited, especially in large-scale applications. As a result, many rely on empirical analysis to assign leaders and followers, without confirming if the selected setup is optimal. Therefore, in this paper, we develop an automated mechanism to evaluate the influence of each player on the global objectives of modular manufacturing systems, applicable to both single- and multi-objective scenarios. We validate the proposed approach within an industrial control scenario, using a modular Bulk Good System and its larger-scale arrangement with sequential and serial-parallel processes. We focus on three objectives, including production flow disruption prevention, power consumption reduction, and production demand fulfilment. Finally, we implement a self-learning algorithm utilizing Modular State-based Stackelberg Games, where leaders and followers are selected using our approach, which leads to encouraging results. KW - Industrie 4.0 KW - Intelligente Fertigung KW - Automation KW - Optimierung KW - Stackelberg-Duopol Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-57990 SN - 0956-5515 PB - Springer Nature ER - TY - INPR A1 - Yuwono, Steve A1 - Rana, Muhammad Uzair A1 - Schwung, Dorothea A1 - Schwung, Andreas T1 - Real Time Self-Tuning Adaptive Controllers on Temperature Control Loops using Event-based Game Theory T2 - arXiv N2 - This paper presents a novel method for enhancing the adaptability of Proportional-Integral-Derivative (PID) controllers in industrial systems using event-based dynamic game theory, which enables the PID controllers to self-learn, optimize, and fine-tune themselves. In contrast to conventional self-learning approaches, our proposed framework offers an event-driven control strategy and game-theoretic learning algorithms. The players collaborate with the PID controllers to dynamically adjust their gains in response to set point changes and disturbances. We provide a theoretical analysis showing sound convergence guarantees for the game given suitable stability ranges of the PID controlled loop. We further introduce an automatic boundary detection mechanism, which helps the players to find an optimal initialization of action spaces and significantly reduces the exploration time. The efficacy of this novel methodology is validated through its implementation in the temperature control loop of a printing press machine. Eventually, the outcomes of the proposed intelligent self-tuning PID controllers are highly promising, particularly in terms of reducing overshoot and settling time. KW - Intelligente Fertigung KW - Automation KW - Spieltheorie KW - PID-Regler KW - Temperaturregelung Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-55462 CY - arXiv ET - v1 ER - TY - INPR A1 - Yuwono, Steve A1 - Löppenberg, Marlon A1 - Schwung, Dorothea A1 - Schwung, Andreas T1 - Gradient-based Learning in State-based Potential Games for Self-Learning Production Systems T2 - arxiv N2 - In this paper, we introduce novel gradient-based optimization methods for state-based potential games (SbPGs) within self-learning distributed production systems. SbPGs are recognised for their efficacy in enabling self-optimizing distributed multi-agent systems and offer a proven convergence guarantee, which facilitates collaborative player efforts towards global objectives. Our study strives to replace conventional ad-hoc random exploration-based learning in SbPGs with contemporary gradient-based approaches, which aim for faster convergence and smoother exploration dynamics, thereby shortening training duration while upholding the efficacy of SbPGs. Moreover, we propose three distinct variants for estimating the objective function of gradient-based learning, each developed to suit the unique characteristics of the systems under consideration. To validate our methodology, we apply it to a laboratory testbed, namely Bulk Good Laboratory Plant, which represents a smart and flexible distributed multi-agent production system. The incorporation of gradient-based learning in SbPGs reduces training times and achieves more optimal policies than its baseline. KW - Machine Learning KW - Artificial Intelligence KW - Computer Science and Game Theory KW - Maschinelles Lernen KW - Künstliche Intelligenz KW - Spieltheorie Y1 - 2024 U6 - https://doi.org/10.48550/arXiv.2406.10015 PB - arxiv ER - TY - JOUR A1 - Yuwono, Steve A1 - Hussain, Ahmar Kamal A1 - Schwung, Dorothea A1 - Schwung, Andreas T1 - Self-optimization in distributed manufacturing systems using Modular State-based Stackelberg games JF - Journal of Manufacturing Systems N2 - In this study, we introduce Modular State-based Stackelberg Games (Mod-SbSG), a novel game structure developed for distributed self-learning in modular manufacturing systems. Mod-SbSG enhances cooperative decision-making among self-learning agents within production systems by integrating State-based Potential Games (SbPG) with Stackelberg games. This hierarchical structure assigns more important modules of the manufacturing system a first-mover advantage, while less important modules respond optimally to the leaders’ decisions. This decision-making process differs from typical multi-agent learning algorithms in manufacturing systems, where decisions are made simultaneously. We provide convergence guarantees for the novel game structure and design learning algorithms to account for the hierarchical game structure. We further analyse the effects of single-leader/multiple-follower and multiple-leader/multiple-follower scenarios within a Mod-SbSG. To assess its effectiveness, we implement and test Mod-SbSG in an industrial control setting using two laboratory-scale testbeds featuring sequential and serial parallel processes. The proposed approach delivers promising results compared to the vanilla SbPG, which reduces overflow by 97.1%, and in some cases, prevents overflow entirely. Additionally, it decreases power consumption by 5%–13% while satisfying the production demand, which significantly improves potential (global objective) values. KW - Intelligente Fertigung KW - Systemtechnik KW - Maschinelles Lernen KW - Bestärkendes Lernen (Künstliche Intelligenz) KW - Spieltheorie KW - Stackelberg-Duopol Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-55471 SN - 0278-6125 VL - 80 SP - 578 EP - 594 PB - Elsevier ER - TY - JOUR A1 - Yalçınkaya, Orhan A1 - Durmaz, Ufuk A1 - Tepe, Ahmet Ümit A1 - Benim, Ali Cemal A1 - Uysal, Ünal T1 - Heat and Flow Characteristics of Aerofoil-Shaped Fins on a Curved Target Surface in a Confined Channel for an Impinging Jet Array JF - Energies N2 - The main purpose of this investigation was to explore the heat transfer and flow characteristics of aero-foil-shaped fins combined with extended jet holes, specifically focusing on their feasibility in cooling turbine blades. In this study, a comprehensive investigation was carried out by applying impinging jet array cooling (IJAC) on a semi-circular curved surface, which was roughened using aerofoil-shaped fins. Numerical computations were conducted under three different Reynolds numbers (Re) ranging from 5000 to 25,000, while nozzle-to-target surface spacings (S/d) ranged from 0.5 to 8.0. Furthermore, an assessment was made of the impact of different fin arrangements, single-row (L1), double-row (L2), and triple-row (L3), on convective heat transfer. Detailed examinations were performed on area-averaged and local Nusselt (Nu) numbers, flow properties, and the thermal performance criterion (TPC) on finned and smooth target surfaces. The study’s results revealed that the use of aerofoil-shaped fins and the reduction in S/d, along with surface roughening, led to significant increases in the local and area-averaged Nu numbers compared to the conventional IJAC scheme. The most notable heat transfer enhancement was observed at S/d = 0.5 utilizing extended jets and the surface design incorporating aerofoil-shaped fins. Under these specific conditions, the maximum heat transfer enhancement reached 52.81%. Moreover, the investigation also demonstrated that the highest TPC on the finned surface was achieved when S/d = 2.0 for L2 at Re = 25,000, resulting in a TPC value of 1.12. Furthermore, reducing S/d and mounting aerofoil-shaped fins on the surface yielded a more uniform heat transfer distribution on the relevant surface than IJAC with a smooth surface, ensuring a relatively more uniform heat transfer distribution to minimize the risk of localized overheating. KW - Beschaufelung KW - Kühlung KW - aerofoil-shaped fin KW - impinging jet array KW - cooling of turbine blades KW - heat transfer uniformity KW - pin-fin row KW - Wärmeübertragung KW - Turbine Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46387 SN - 1996-1073 VL - 17 IS - 5 PB - MDPI ER - TY - CHAP A1 - Wolters, Christine A1 - Wilke, Karsten ED - Kühl, Richard ED - Löffelbein, Nils T1 - Die Kriegsbeschädigtenversorgung nach dem Zweiten Weltkrieg als "Soziales Feld" nach Pierre Bourdieu T2 - Die Medizin und der Krieg: Versorgung, Forschung und Ideologie im 20. Jahrhundert KW - FBSK_Webseite KW - Kriegsbeschädigter KW - Medizinische Versorgung KW - Deutschland (Bundesrepublik) Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-60404 SN - 9783837676952 SN - 2702-9409 VL - Histoire, Bd. 229 SP - 365 EP - 388 PB - transcript CY - Bielefeld ET - 1 ER - TY - JOUR A1 - Wolf, Dominik Werner A1 - Ulrich, Markus A1 - Braun, Alexander T1 - Novel developments of refractive power measurement techniques in the automotive world JF - Metrologia N2 - Refractive power measurements serve as the primary quality standard in the automotive glazing industry. In the light of autonomous driving new optical metrics are becoming more and more popular for specifying optical quality requirements for the windshield. Nevertheless, the link between those quantities and the refractive power needs to be established in order to ensure a holistic requirement profile for the windshield. As a consequence, traceable high-resolution refractive power measurements are still required for the glass quality assessment. Standard measurement systems using Moiré patterns for refractive power monitoring in the automotive industry are highly resolution limited, wherefore they are insufficient for evaluating the camera window area. Consequently, there is a need for more sophisticated refractive power measurement systems that provide a higher spatial resolution. In addition, a calibration procedure has to be developed in order to guarantee for comparability of the measurement results. For increasing the resolution, a measurement setup based on an auto-correlation algorithm is tested in this paper. Furthermore, a calibration procedure is established by using a single reference lens with a nominal refractive power of 100 km-1. For the calibration of the entire measurement range of the system, the lens is tilted by an inclination angle orthogonal to the optical axis. The effective refractive power is then given by the Kerkhof model. By adopting the measurement and calibration procedure presented in this paper, glass suppliers in the automotive industry will be able to detect relevant manufacturing defects within the camera window area more accurately paving the way for a holistic quality assurance of the windshield for future advanced driver-assistance system (ADAS) functionalities. Concurrently, the traceability of the measurement results is ensured by establishing a calibration chain based on a single reference lens, which is traced back to international standards. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41484 UR - http://iopscience.iop.org/article/10.1088/1681-7575/acf1a4 SN - 1681-7575 VL - 60 IS - 064001 PB - IOP Publishing ER - TY - INPR A1 - Wolf, Dominik Werner A1 - Braun, Alexander A1 - Ulrich, Markus T1 - Optical aberrations in autonomous driving: Physics-informed parameterized temperature scaling for neural network uncertainty calibration T2 - International Journal of Computer Vision (IJCV) N2 - 'A trustworthy representation of uncertainty is desirable and should be considered as a key feature of any machine learning method' (Huellermeier and Waegeman, 2021). This conclusion of Huellermeier et al. underpins the importance of calibrated uncertainties. Since AI-based algorithms are heavily impacted by dataset shifts, the automotive industry needs to safeguard its system against all possible contingencies. One important but often neglected dataset shift is caused by optical aberrations induced by the windshield. For the verification of the perception system performance, requirements on the AI performance need to be translated into optical metrics by a bijective mapping (Braun, 2023). Given this bijective mapping it is evident that the optical system characteristics add additional information about the magnitude of the dataset shift. As a consequence, we propose to incorporate a physical inductive bias into the neural network calibration architecture to enhance the robustness and the trustworthiness of the AI target application, which we demonstrate by using a semantic segmentation task as an example. By utilizing the Zernike coefficient vector of the optical system as a physical prior we can significantly reduce the mean expected calibration error in case of optical aberrations. As a result, we pave the way for a trustworthy uncertainty representation and for a holistic verification strategy of the perception chain. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50120 PB - arXiv ER - TY - INPR A1 - Wolf, Dominik Werner A1 - Balaji, Prasannavenkatesh A1 - Braun, Alexander A1 - Ulrich, Markus T1 - Decoupling of neural network calibration measures T2 - German Conference on Pattern Recognition (GCPR) 2024 N2 - A lot of effort is currently invested in safeguarding autonomous driving systems, which heavily rely on deep neural networks for computer vision. We investigate the coupling of different neural network calibration measures with a special focus on the Area Under the Sparsification Error curve (AUSE) metric. We elaborate on the well-known inconsistency in determining optimal calibration using the Expected Calibration Error (ECE) and we demonstrate similar issues for the AUSE, the Uncertainty Calibration Score (UCS), as well as the Uncertainty Calibration Error (UCE). We conclude that the current methodologies leave a degree of freedom, which prevents a unique model calibration for the homologation of safety-critical functionalities. Furthermore, we propose the AUSE as an indirect measure for the residual uncertainty, which is irreducible for a fixed network architecture and is driven by the stochasticity in the underlying data generation process (aleatoric contribution) as well as the limitation in the hypothesis space (epistemic contribution). Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50104 PB - arXiv ER - TY - JOUR A1 - Wojciechowski, Manfred A1 - Pogscheba, Patrick T1 - Building a COVID-Safe Navigation App Using a Meta-Model Based Context Server JF - sensors N2 - Building context-aware applications is an already widely researched topic. It is our belief that context awareness has the potential to supplement the Internet of Things, when a suitable methodology including supporting tools will ease the development of context-aware applications. We believe that a meta-model based approach can be key to achieving this goal. In this paper, we present our meta-model based methodology, which allows us to define and build application-specific context models and the integration of sensor data without any programming. We describe how that methodology is applied with the implementation of a relatively simple context-aware COVID-safe navigation app. The outcome showed that programmers with no experience in context-awareness were able to understand the concepts easily and were able to effectively use it after receiving a short training. Therefore, context-awareness is able to be implemented within a short amount of time. We conclude that this can also be the case for the development of other context-aware applications, which have the same context-awareness characteristics. We have also identified further optimization potential, which we will discuss at the conclusion of this article. KW - context awareness KW - internet of things KW - development methodology KW - meta model KW - context query language Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-39570 SN - 1424-8220 VL - 22 IS - 24 SP - 1 EP - 14 PB - MDPI ER - TY - JOUR A1 - Wohlers, Luis Constantin A1 - Müller, Patrick A1 - Braun, Alexander T1 - Original image noise reconstruction for spatially-varying filtered driving scenes JF - Electronic Imaging: Society for Imaging Science and Technology Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41479 SN - 2470-1173 VL - 34 IS - 16 SP - 1 EP - 7 PB - Society for Imaging Science and Technology ER - TY - JOUR A1 - Wittpahl, Christian A1 - Deegan, Brian A1 - Black, Bob A1 - Braun, Alexander T1 - An analytic-numerical image flicker study to test novel flicker metrics JF - Electronic Imaging: Society for Imaging Science and Technology Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-35671 SN - 2470-1173 IS - 17 SP - 1 EP - 8 PB - Society for Imaging Science and Technology ER - TY - JOUR A1 - Winter, Franziska Luise A1 - Diehl, Patrick A1 - Telaar, Pascal A1 - Watermann, Clara Maria A1 - Kaluza, Stefan A1 - Muhler, Martin A1 - Apfel, Ulf-Peter A1 - Zeidler-Fandrich, Barbara T1 - Influence of the catalyst precursor for cobalt on activated carbon applied in ammonia decomposition JF - Catalysis Today N2 - Ammonia is a key compound for storing and transporting green hydrogen. However, the efficient release of stored hydrogen through thermocatalytic ammonia decomposition is achievable only at temperatures around 600 °C, particularly with non-noble metal-based catalysts, which prove to be both ecologically and economically more feasible. In this study, electrically conductive activated carbon was selected as the catalyst support, chosen specifically for its suitability in achieving more energy-efficient direct reactor heating through the ohmic resistance of the catalysts. Cobalt salts were wet impregnated on activated carbon investigating the influence of different precursors (cobalt nitrate and cobalt acetate) and pyrolysis temperatures (400 °C and 600 °C) under N2 flow on the cobalt particle size and the incorporation of cobalt into the carbon matrix. TEM imaging and CO-chemisorption revealed well dispersed cobalt particles with sizes below 10 nm for the catalysts synthesized from the cobalt nitrate precursor. On the other hand, cobalt acetate led to about nine times larger Co agglomerates, which were partially detached from the carbon matrix. Moreover, this substantial difference in the Co particle size results in a significantly higher ammonia conversion for cobalt nitrate-based catalysts, achieving 94 % of ammonia conversion at 600 °C. Furthermore, the long-term stability test of the cobalt nitrate-based catalyst resulted in a slight deactivation of only 2 % ammonia conversion at 500 °C. KW - Katalyse KW - Ammoniak KW - Grüner Wasserstoff KW - Ammonia decomposition KW - Carbon supported cobalt KW - Synthesis design KW - Cobalt acetate KW - Cobalt nitrate KW - Resistance heating Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46600 SN - 0920-5861 VL - 429 PB - Elsevier ER - TY - RPRT A1 - Weinert, Stephan T1 - Zum Zusammenhang zwischen Employer Awards und Arbeitgeberattraktivität N2 - In der vorliegenden Studie wurde der Forschungsfrage nachgegangen, ob Unternehmen in Employer Awards investieren sollten, um als attraktiver Arbeitgeber wahrgenommen zu werden. Methodisch basiert die Untersuchung auf einem experimentellen einfaktoriellen Zufallsgruppenversuchsplan mit Mehrgruppen-Design. Der zentrale Befund lautet, dass Unternehmen Investitionen in Employer Awards kritisch prüfen sollten, da von ihnen kein positiver Effekt auf die wahrgenommene Arbeitgeberattraktivität auszugehen scheint. N2 - The studys research question was if firms should invest in employer awards in order to be better perceived as attractive employers. The methodology was based on an experimental univariate randomized multi-group design. As a main finding it can be concluded that firms should carefully evaluate if investments in employer awards are necessary, given that they seem not to have any positive effect on perceived employer attractiveness. T2 - On the Relationship Between Employer Awards and Employer Attractiveness T3 - Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule Düsseldorf - 35 KW - Employer Branding KW - Employer Awards KW - Recruiting Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-10676 SN - 2365-3361 IS - 35 CY - Düsseldorf ER - TY - RPRT A1 - Weinert, Stephan ED - Kalmring, Dirk T1 - Diversity der DAX30-Vorstände: Anspruch und Wirklichkeit T1 - Diversity of the DAX30 Executive Board Members: Aspiration and Reality N2 - Diversity bzw. Unterschiedlichkeit gewinnt für deutsche Unternehmen zunehmend an Bedeutung. Entsprechend prominent wird das Thema in der Unternehmens-kommunikation hervorgehoben. Wenn Diversity allerdings eine solch hohe Bedeutung besitzt, so darf angenommen werden, dass ausgeprägte Diversity gerade auf Ebene der Vorstände existieren müsste. Schließlich hat dieses Gremium eine zentrale Vorbildfunktion für die in einem Unternehmen tätigen Führungskräfte und Mitarbeiter/innen inne. Auf Basis einer umfassenden empirischen Untersuchung wurde die Vorstands-diversity der DAX30-Unternehmen anhand mehrerer zentraler Kriterien analysiert. Die Ergebnisse und deren Implikationen werden in dem nachfolgenden Beitrag vorgestellt. N2 - Diversity becomes increasingly important for German companies. Accordingly, the topic stands out prominently in company communications. If diversity has such a high importance it will be assumed that diversity should exist particularly on executive board level. After all, this body leads companies’ employees by example. Multiple diversity criteria were applied to investigate the diversity of the DAX30 executive board members. The results of this study and their implications are presented in this article. T3 - Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule Düsseldorf - 20 KW - Diversity KW - Diversity Management KW - Leadership Diversity KW - Führung KW - Diversity KW - Leadership KW - FHD Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-7180 N1 - Erster / früherer Titel der Reihe: Forschungsberichte des Fachbereichs Wirtschaft der Fachhochschule Düsseldorf bis 2014 IS - 20 CY - Düsseldorf ER - TY - RPRT A1 - Weigel-Stollenwerk, Nicole A1 - Boeßenecker, Karl-Heinz A1 - Biebricher, Martin T1 - Forschungsprojekt Qualitätsmerkmale und Qualitätsentwicklung in der Sozialen Arbeit : Textzusammenfassungen N2 - Inhaltsverzeichnis: Qualitätsentwicklung in der Jugendhilfe, Qualitätsentwicklung in der Altenhilfe, Qualitätsentwicklung in sonstigen Bereichen der Sozialen Arbeit; T3 - Schriftenreihe Arbeitsmaterialien - 13 KW - Soziale Arbeit KW - Wohlfahrtsverbände KW - Arbeitsmaterialien KW - FHD Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-1736 VL - 13 CY - Düsseldorf ER - TY - RPRT A1 - Weigel-Stollenwerk, Nicole A1 - Biebricher, Martin A1 - Boeßenecker, Karl-Heinz T1 - Forschungsprojekt Qualitätsmerkmale und Qualitätsentwicklung in der Sozialen Arbeit : Zweiter Zwischenbericht N2 - Inhaltsverzeichnis: Einleitung, Projektaufbau und Forschungsfragestellungen, Fragestellungen der quantitativen Erhebung, Untersuchungsdesing, Ergebnisse der Fragebogenerhebung, Resümee, Grundsätzliche Fragen zur Weiterarbeit und Projektlage, Arbeitskonferenz 16. Juni 2000 - Protokoll, Literatur, Anhang, Qualitätsgesellschaften der Spitzenverbände der Freien Wohlfahrtspflege; T3 - Schriftenreihe Arbeitsmaterialien - 8a KW - FHD KW - Arbeitsmaterialien KW - Soziale Arbeit KW - Wohlfahrtsverbände Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-1741 VL - 8a CY - Düsseldorf ER - TY - THES A1 - Weidner, Judith T1 - Diskriminierung und Empowerment von Menschen auf dem aromantischen und asexuellen Spektrum. Eine qualitative Analyse von Erfahrungen und Perspektiven junger Aspecs. T3 - Hervorragende Abschlussarbeiten im Fachbereich Sozial- und Kulturwissenschaften - 212 KW - Aromantik KW - Asexualität KW - Empowerment KW - Master KW - SoSe24 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-53112 CY - Düsseldorf ER - TY - RPRT A1 - Weidekamp-Maicher, Manuela A1 - Wojciechowski, Manfred A1 - Tyll, Susanne A1 - Drewniok, Arthur A1 - Helmes, Ina A1 - Pohlmann, Wolf Eric T1 - Technikberatung als Baustein der Wohnberatung: Erfahrungen, Rahmenbedingungen und aktuelle Entwicklungstrends KW - Wohnberatung KW - technische Unterstützung KW - Technikberatung KW - AAL Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-29827 SN - 978-3-941334-33-5 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - RPRT A1 - Weidekamp-Maicher, Manuela T1 - Technikberatung als integrierter Baustein der Wohnberatung: Anforderungen an professionelle Technikberatung aus Sicht ausgewählter Expert*innen N2 - Technikberatung stellt eine neue soziale Dienstleistung dar, die angesichts der steigenden Potenziale assistiver digitaler Technologien an Relevanz gewinnt. Der Bericht befasst sich mit der Bestimmung von Anforderungen an professionelle Technikberatung als integriertem Baustein der Wohnberatung in Nordrhein-Westfalen (Deutschland). Das methodische Vorgehen beruht auf 20 Expert*inneninterviews. Die Befragten repräsentieren verschiedene Handlungsfelder, u. a. Wohn- und Technikberatung, Technikentwicklung, Wohnungswirtschaft, Wissenschaft, Kommunalpolitik, Pflegekassen usw. Die Ergebnisse führten zur Bildung von drei Kernthemen: Anforderungen an professionelle Technikberatung, Rahmenbedingungen und Aufgaben von Technikberatung auf institutioneller und gesamtgesellschaftlicher Ebene sowie Erwartungen an Politik, Wissenschaft und andere Akteure. Zusammenfassend betrachtet zeigt sich, dass Technikberatung neue Kompetenzen benötigt, deren Vermittlung auf Dauer, z. B. durch spezifische Schulungen, institutionalisiert werden muss. Die Integration von Technikberatung in die Wohnberatung erweitert zudem ihre Aufgaben, ihren Beratungsanspruch und erfordert den Aufbau neuer Kooperationen. Ihr Erfolg ist von einer Reihe förderlicher Rahmenbedingungen abhängig, z. B. politischer, ökonomischer, qualifikatorischer und ideeller Art. Eine Transformation aller sozialen Beratungsleistungen kann jedoch nicht allein aus der Perspektive der Wohnberatung vorangetrieben werden, sondern muss alle Beratungsstrukturen im kommunalen Raum berücksichtigen. N2 - Technology counselling represents a new social service that is gaining relevance in view of the increasing potential of assistive digital technologies. The report deals with the identification of requirements for professional technology counselling as an integrated component of housing counselling in North Rhine-Westphalia (Germany). The methodological approach is based on 20 interviews with experts. The interviewees represent various fields of action, including housing and technology counselling, technology development, companies in the housing sector, science, local politics, long-term care insurance companies, etc. The results led to the formation of three core themes: Requirements for professional technology counselling, framework conditions and tasks of technology counselling on an institutional and societal level, and expectations on politics, science and other actors. In summary, it can be seen that technology counselling requires new competences, the teaching of which must be institutionalized in the long term, e.g. through specific training courses. The integration of technology counselling into housing counselling also expands its tasks, its counselling claim and requires the establishment of new cooperations. Its success depends on a number of conducive framework conditions, e.g. political, economic, qualification and idealistic. However, a transformation of all social counselling services cannot be driven forward from the perspective of housing counselling alone but must take into account all counselling structures in the municipal space. KW - Wohnberatung KW - Wohnen im Alter KW - assistive Technik KW - Technikberatung Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-39044 SN - 978-3-941334-36-6 CY - Düsseldorf ER - TY - JOUR A1 - Wegrzyn, Eva A1 - Mallat, Anja T1 - Eine gute Geschichte? – Zur Rolle der Hochschulkommunikation bei der Sichtbarmachung von Wissenschaftlerinnen JF - GENDER – Zeitschrift für Geschlecht, Kultur und Gesellschaft N2 - Die Sichtbarkeit von Forschungsleistungen, sowohl in die akademische Fachwelt als auch in die breite Öffentlichkeit hinein, gewinnt zunehmend an Bedeutung. Beide Ebenen sind vergeschlechtlicht (Gender Visibility Gap). Dies zeigt sich darin, dass die Forschung von Wissenschaftlerinnen weniger sichtbar ist bzw. gemacht wird und somit weniger Anerkennung erhält als die von Kollegen, was neben anderen Faktoren dazu führen kann, dass Wissenschaftlerinnen das Hochschulsystem verlassen. Davon ausgehend stellt der Beitrag die Frage, welche Rolle der in diesem Kontext bisher wenig im Mittelpunkt der Forschung stehenden Hochschulkommunikation im Prozess der Sichtbarmachung von Wissenschaftlerinnen zukommt. Es wird vor dem Hintergrund macht- und repräsentationstheoretischer Perspektiven diskutiert, wie sich Mitarbeitende der Hochschulkommunikation im Prozess der Sichtbarmachung von Wissenschaftlerinnen positionieren und inwiefern sie sich hier in der (Mit-)Verantwortung sehen. Ein zentraler Befund ist, dass diese Akteursgruppe ihren Einfluss mit Rekurs auf wissenschaftsexterne, journalistische Kriterien, die es zu erfüllen gilt, ein Stück weit relativiert. KW - Gleichstellung KW - Forschungsleistung KW - Sichtbarkeit KW - Wissenschaftskommunikation Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-57690 SN - 1868-7245 VL - 17 IS - 1 SP - 87 EP - 103 PB - Barbara Budrich ER - TY - JOUR A1 - Weber, Konradin A1 - Heweling, Georg A1 - Fischer, Christian A1 - Lange, Martin T1 - The use of an octocopter UAV for the determination of air pollutants – a case study of the traffic induced pollution plume around a river bridge in Duesseldorf, Germany JF - International Journal of Environmental Science N2 - Emissions of air pollutants from the road traffic are still a major problem in Germany. It is well known that traffic induced fine particulate matter (PM10, PM2.5, PM1), ultrafine particles (UFPs) and gaseous air pollutants, like e.g. NOx, are adverse to human health. Therefore it is important to monitor these air pollutants in the cities. In this study an octocopter UAV is used as a carrier for measurement systems for UFPs, fine particulate matter and soot. This instrumented octocopter was used for studying the vertical and horizontal variation of the air pollution plume, which originated from the traffic on a river bridge, connecting two parts of Duesseldorf in Germany. This octocopter UAV had been especially designed and built at the Duesseldorf University of Applied Sciences for measurements of air pollutants. It was featuring eight 900 W electric propeller drives and was equipped with a pixhawk flight control. Its lift off weight was about 10.5 kg. About 60 measurement flights were performed by the instrumented octocopter throughout this study. These measurement flights could clearly determine the traffic induced air pollution plume originating from the bridge. Moreover, the dispersion of UFPs within the pollution plume could be monitored with the octocopter flights. KW - Luftreinhaltung KW - Flugkörper KW - Messtechnik KW - Feinstaub KW - Luftqualität KW - Luftverschmutzung Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50805 SN - 2367-8941 VL - 2 SP - 63 EP - 66 ER - TY - JOUR A1 - Weber, Konradin A1 - Fischer, Christian A1 - Pohl, Tobias A1 - Böhlke, Christoph A1 - Lange, Martin A1 - Scharifi, Emad A1 - Eliasson, Jonas A1 - Yoshitani, Junichi T1 - The Application of Light Research Aircraft for the Investigation of Volcano Eruption Plumes, Industrial Emissions and Urban Plumes JF - WSEAS Transactions on Environment and Development N2 - Airborne measurements have proved to be an important tool for the investigation of volcanic emission plumes, industrial pollution plumes, fugitive emissions and urban pollution plumes. In this paper several examples are demonstrated, how these investigations can be performed by light and microlight propeller aircraft. Throughout the last years innovative aircraft were developed in the light and microlight class showing an excellent flight performance. This enables airborne measurements, which were performed in former years normally by big jet engine driven research aircraft. Moreover, these light and microlight aircraft are equipped with piston motors, which are sturdy enough to operate even in adverse and harsh flight conditions, e.g. in volcanic plumes with high ash concentration. Additionally, turbo charged versions of these airborne piston motors are available, which allow flight altitudes of 7000m – 9000m enabling a large variety of research missions. Another advantage of light and microlight research aircraft is that they are quite cost effective and have a comparatively short certification process for the installation of new measurement equipment. This made it possible to respond fast to the eruption of the Icelandic volcano Eyjafjallajökull 2010 and Grimsvötn 2011 with research flights in volcanic ash plumes over Germany and Iceland. In this way it was possible to deliver real airborne measurements additional to the ash plume model calculations of the London Volcanic Ash Advisory Center (VAAC). In this paper examples of airborne measurements in the volcanic plumes of the recent eruptions of Icelandic volcanoes are given. Moreover examples are presented, which highlight the outstanding capabilities of these aircraft for pinpointing industrial emissions and for characterizing urban pollution plumes. KW - Luftreinhaltung KW - Vulkanismus KW - Vulkanasche KW - Forschungsflugzeug KW - Leichtflugzeug KW - Messtechnik Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50892 SN - 2224-3496 N1 - Open Access Statement: "This is an open access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, deposit to institutional repositories or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access." https://wseas.com/open-access-statement.php VL - 11 SP - 89 EP - 94 PB - WSEAS ER - TY - JOUR A1 - Vöcking, Mara A1 - Karrenbrock, Anne A1 - Beckmann, Andreas A1 - Vondeberg, Carmen A1 - Obert, Laura A1 - Hemming, Bernhard A1 - Minartz, Peter A1 - Bleck, Christian A1 - Cürlis, Diana A1 - Kuske, Silke T1 - Emotional and Psychological Safety in Healthcare Digitalization: A Design Ethnographic Study JF - International Journal of Public Health N2 - Emotional and psychological safety is important during the use of digital technologies in healthcare. We aimed to gain comprehensive insight into needs, influencing factors and outcomes in the context of perceived safety and digital technologies in healthcare. We employed a participatory, design ethnographic research approach with 16 participants in 10 use cases. The methods included in an iterative process were, think-aloud, guideline-based interviews, process mapping, storyboard creation, and photo documentation. A qualitative, primarily inductive data analysis and synthesis was performed. Perceived safety is influenced by various factors and unmet needs. Increased perceived safety can positively support the use of digital technologies, whereas low perceived safety can limit or even hinder its use. The needs of the different target groups should be considered throughout the entire process of digital technology development and healthcare provision to support their implementation. These findings support further research by providing specific aspects of emotional and psychological safety regarding target groups, settings, and ages and those with different levels of affinity for digital technologies. KW - Digitalisierung KW - Gesundheitswesen KW - Ethnologie KW - psychische Sicherheit KW - emotionale Sicherheit KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46556 SN - 1661-8564 VL - 69 PB - Frontiers ER - TY - JOUR A1 - von Berg, Markus A1 - Wolf, Anna-Christina A1 - Steffens, Jochen T1 - Age- and Sex-Related Differences in Music Requests on a Radio Show for Children JF - Music & Science N2 - In research on the development of musical preferences, children are often asked either to evaluate musical pieces that have been previously selected by adult experimenters, or to give self-reports on preferences for different musical styles. This study involved analyzing a sample of 1,412 freely and publicly expressed music requests from children aged between 4 and 11 years taken from a German radio program, with regard to age- and sex-specific differences. The music was categorized into genres, as listed on Spotify, and examined using methods of music information retrieval provided by the Spotify Developer application programming interface. Results showed that, at younger ages, the requests were generally more evenly distributed across different genres. Regarding single genres, we observed small positive relationships between age and the likelihood of requesting the genres pop or electro and small negative relationships between age and the likelihood of requesting A capella, German songwriter, indie, theme songs, or children's music. Furthermore, we found that boys requested significantly more rock or hip-hop, whereas girls had a higher tendency to ask for pop. Finally, age- (but no sex-) related differences regarding the Spotify features of valence and liveness of the requested music were found, which were related to the preference for children's music at younger ages. The results thus suggest that previous findings regarding differences between boys and girls and an increasing formation of distinct genre preferences during infancy also apply to single song requests made on a radio show. KW - children’s music KW - children’s musical preferences KW - genre preferences KW - music requests KW - musical identity KW - DFG Publikationskosten KW - HSD Publikationsfonds Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46588 SN - 2059-2043 N1 - Funding: Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – 532148125 and supported by the central publication fund of Hochschule Düsseldorf University of Applied Sciences. VL - 7 SP - 1 EP - 16 PB - Sage Publications ER - TY - CHAP A1 - von Berg, Markus A1 - Schwörer, Paul A1 - Prinz, Lukas A1 - Steffens, Jochen T1 - Analysis of physical and perceptual properties of room impulse responses: development of an online tool T2 - Forum Acusticuum 2023: 10th Convention of European Acoustics Association, Turin, Italy, 11th-15th September 2023 N2 - Over the past decades, research in room acoustics has established several derivative measures of an impulse response, some of which are incorporated in the ISO 3382 standards. These parameters intend to represent perceptual qualities, but were developed without a consistent modeling of room acoustical perception. More recent research proposed comprehensive inventories of room acoustic perception that are purely based on evaluations by human subjects, such as the Room Acoustical Quality Index (RAQI). In this work RA-QI scores acquired for 70 room impulse responses were predicted from room acoustical parameters. Except for Reverberance, the prediction of RAQI factors performed rather poor. In most cases, the sound source had a greater impact on RAQI scores. All analyses are published in an online tool, where users can upload omnidirectional and binaural impulse responses, and instantly obtain and visualize several physical descriptors, as well as predicted RAQI scores for three different sound sources. So far, acceptable prediction accuracy is achieved for Reverberance, Strength, Irregular Decay, Clarity and Intimacy. Larger data sets of evaluated impulse responses are required to improve the model performance and enable reliable predictions of room acoustical quality. Therefore, the administration of RAQI evaluations within the website is currently being developed. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41955 PB - EAA ER - TY - CHAP A1 - Von Berg, Markus A1 - Schwörer, Paul A1 - Prinz, Lukas A1 - Steffens, Jochen ED - Astolfi, Arianna ED - Asdrubali, Francesco ED - Shtrepi, Louena T1 - Analysis of physical and perceptual properties of room impulse responses: development of an online tool T2 - Proceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, September 11 - 15, 2023,Torino, Italy N2 - Over the past decades, research in room acoustics has established several derivative measures of an impulse response, some of which are incorporated in the ISO 3382 standards. These parameters intend to represent perceptual qualities, but were developed without a consistent modeling of room acoustical perception. More recent research proposed comprehensive inventories of room acoustic perception that are purely based on evaluations by human subjects, such as the Room Acoustical Quality Index (RAQI). In this work RAQI scores acquired for 70 room impulse responses were predicted from room acoustical parameters. Except for Reverberance, the prediction of RAQI factors performed rather poor. In most cases, the sound source had a greater impact on RAQI scores. All analyses are published in an online tool, where users can upload omnidirectional and binaural impulse responses, and instantly obtain and visualize several physical descriptors, as well as predicted RAQI scores for three different sound sources. So far, acceptable prediction accuracy is achieved for Reverberance, Strength, Irregular Decay, Clarity and Intimacy. Larger data sets of evaluated impulse responses are required to improve the model performance and enable reliable predictions of room acoustical quality. Therefore, the administration of RAQI evaluations within the website is currently being developed. KW - Raumakustik KW - Konzertsaal KW - Webanwendung Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-47929 SN - 978-88-88942-67-4 SN - 2221-3767 SP - 1647 EP - 1654 PB - European Acoustics Association CY - Turin, Italy ER - TY - CHAP A1 - von Berg, Markus A1 - Prinz, Lukas A1 - Steffens, Jochen T1 - Comparing individual perception of timbre and reverberance BT - Proceedings of the 24th International Congress on Acoustics N2 - Room reverberation alters the spatial impression and timbre of a sound by modulating its spectral and temporal characteristics. Thus, we argue that, on a perceptual level, reverberation basically breaks down into interaural differences and spectro-temporal cues and that the separation of a perceived timbre into a sound source and a surrounding room is a purely cognitive process. To investigate the connection between the perception of reverberation cues and timbre analysis, the sensitivity for changes in reverberation was compared to timbre perception abilities. The Timbre Perception Test was used to measure the perception of the temporal envelope, spectral centroid, and spectral flux of artificial sounds. Sensitivity for changes in reverberation time was tested with a discrimination task using speech and noise with speech-alike spectral and temporal envelopes as source signals. Musical and acoustical expertise was assessed through the Goldsmiths Musical Sophistication Index and self-reports on experience with and knowledge of acoustics. There was a considerable correlation between timbre and reverberance perception ability, but timbre perception and academic experience predicted only 41% of the variance in reverberance perception. Still, perception abilities related to similar acoustical phenomena seem to be better indicators of listening skills than self-reports on acoustical or musical expertise. KW - Timbre KW - Klangfarbe KW - Reverberation KW - Nachhall Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-38706 UR - https://ica2022korea.org/data/Proceedings_A11.pdf PB - International Commission for Acoustics CY - Gyeoungju, Südkorea ER - TY - JOUR A1 - von Berg, Markus A1 - Himmelein, Hendrik A1 - Steffens, Jochen T1 - Effects of noise sensitivity and listening effort on perceptual ratings of background noise JF - JASA Express Letters N2 - Previous research suggests that noise sensitivity is related to inefficient auditory processing that might increase the mental load of noise and affect noise evaluation. This assumption was tested in an experiment using a dual-task paradigm with a visual primary task and an auditory secondary task. Results showed that participants' noise sensitivity was positively correlated with mental effort. Furthermore, mental effort mediated the effect of noise sensitivity on loudness and unpleasantness ratings. The results thus support the idea that noise sensitivity is related to increased mental effort and difficulties in filtering auditory information and that situational factors should be considered. KW - noise sensitivity KW - listening effort KW - Geräuschempfindlichkeit KW - Höranstrengung KW - HSD Publikationsfonds KW - DFG Publikationskosten Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-45747 SN - 2691-1191 N1 - Funding: Gefördert durch die Deutsche Forschungsgemeinschaft (DFG) – 532148125 und durch den zentralen Publikationsfonds der Hochschule Düsseldorf University of Applied Sciences. VL - 8 IS - 4 PB - AIP Publishing ER - TY - RPRT A1 - Vogel, Peter A1 - Blättermann, Patrick T1 - Investieren unter Nebenbedingungen - Teil 5: Auswahl von Aktien, Datenqualität und Statistik-Ergebnisse T3 - Trading - 5 KW - Trading Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-28848 SN - 2567-2347 CY - Düsseldorf ER - TY - RPRT A1 - Vogel, Peter T1 - Investieren unter Nebenbedingungen - Teil 4: Ergänzung zu Teil 3 N2 - Der vierte Teil der Schriftenreihe "Trading" präsentiert eine statistische Auswertung von Kursdaten bei einer Haltefrist von einem Handelstag. Die Statistik beinhaltet Gewinnfaktor bzw. Rendite und Investitionsgrad aus Teil 1 sowie Volatilität, Chance, Risiko und Handelskosten, welche in Teil 3 eingeführt wurden. Kaufbedingungen werden wie in Teil 1 mit Hilfe des Kursverhältnisses an zwei aufeinander folgenden Handelstagen gebildet. Die Auswertung für den Markt FEBRDUSA_1 historischer Kursdaten liefert eine in sich schlüssige Beschreibung des Einflussfaktors Kaufbedingung auf die künftige Kursentwicklung. Den größten Gewinn liefert eine Mean Reversion-Strategie, bei der die Chance deutlich über dem Risiko liegt. Da die Statistik die Begrenzung eingegangener Neuinvestitionen berücksichtigt, werden Übertreibungen vermieden, die einer arithmetischen Mittelwertbildung anhaften. Die statische Auswertung für einen mit Random Walks gebildeten Markt bestätigt, dass für diesen Fall keine Abhängigkeit von der Kaufbedingung besteht. N2 - The fourth part of the series "Trading" presents experimental findings of price data statistics for a holding period of one day. The statistics include gain factor, return and investment ratio of part 1 as well as volatility, chance, risk and trading costs of part 3. Buy conditions are defined by means of the price relationship for two subsequent trading days, as in part 1. The experimental findings for the market FEBRDUSA_1 of historical price data provides a coherent description of the influence of the buy condition on future prices. The maximum return is provided by a buy condition describing a price slump. Since the statistics incorporates the limited amount of new investments, exaggeration due to arithmetic averaging is avoided. The experimental findings for a market of random walks confirm that there is no dependence on the buy condition in this case. T3 - Trading - 4 KW - Chance KW - Risiko KW - Volatilität KW - Mean-Reversion-Strategie KW - Random Walks KW - chance KW - risk KW - volatility KW - trading costs Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-21206 SN - 2567-2347 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - RPRT A1 - Vogel, Peter T1 - Investieren unter Nebenbedingungen - Teil 3: Erweiterung der Statistik N2 - Der dritte Teil der Schriftenreihe entwickelt die statistische Beschreibung für das Investieren in Wertpapiere weiter, welche in den ersten beiden Teilen begonnen wurde. Die dort eingeführten Statistikgrößen betreffen Gewinnfaktoren bzw. Renditen und den Investitionsgrad. Die neuen Statistikgrößen beinhalten ein Maß für Chance, Risiko, Volatilität sowie Handelskosten. Alle Statistikgrößen hängen von mehreren Investitionsparametern ab, u. a. der Haltefrist, die angibt, wie lange eine eingegangene Investition gehalten wird. Es wird wieder eine endliche Menge von Wertpapieren gehandelt und die Investition in ein Wertpapier setzt voraus, dass eine Kaufbedingung erfüllt ist. Experimentelle Ergebnisse für einen Markt mit historischen Kursdaten sowie für einen Markt mit Random Walks belegen die Stärke der erweiterten Statistik. N2 - In the third part of the series, the statistics in the first two parts for investing in securities is further developed. The statistical quantities introduced thus far are gain factors/returns and the investment degree. The new statistical quantities provide a measure of chance, risk, volatility, and trading costs. All statistical quantities depend on investment parameters including the holding period, defining how long a new investment will be hold. A finite set of securites is traded again and new investments in a security assumes a buy condition. Experimental results for a market with historical price data and for a market containing random walks demonstrate the very strength of the extended statistics. T3 - Trading - 3 KW - Chance KW - Risiko KW - Volatilität KW - Handelskosten KW - Momentum-Strategie KW - Mean-Reversion-Effekt KW - risk KW - volatility KW - trading costs KW - momentum strategy KW - mean reversion effect Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-20373 UR - https://opus4.kobv.de/opus4-hs-duesseldorf/1501 SN - 2567-2347 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - RPRT A1 - Vogel, Peter T1 - Investing as Random Trial T2 - Trading N2 - We introduce an investment algorithm for a market of individual securities. The investment algorithm is derived from constraints depending on investment parameters in order to limit the risk and to take into account an individual investor. One constraint is devoted to trading costs. Purchased securities are selected randomly among securities that meet the buy condition, making trading a random trial. Simulations with historical price data are demonstrated for a simple example: The buy condition is evaluated on the basis of the price relationship for two subsequent trading days and the sales condition is defined by holding securities only for one day. A trading expert evaluates the expected return for the investment algorithm with respect to the random selection. Thus, the expert informs precisely on how many market players perform using the same investment algorithm. Its findings are for a parametrized set of buy conditions simultaneously, which makes a trading expert a valuable tool for theorists as well as for practitioners. In our example, the trading expert demonstrated clearly a significant mean reversion effect for a horizon of one day. T3 - Trading - 1 KW - investment constraints KW - investment algorithm KW - investing as random trial KW - trading expert KW - mean reversion Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-11118 UR - https://opus4.kobv.de/opus4-hs-duesseldorf/1501 SN - 2567-2347 IS - 1 EP - 1 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - RPRT A1 - Vogel, Peter T1 - Investieren unter Nebenbedingungen - Teil 2: Erweiterung der Statistik auf Haltefristen größer als ein Tag T2 - Trading N2 - Der zweite Teil der Schriftenreihe entwickelt die in Teil 1 begonnenen Überlegungen über das Investieren in Wertpapiere eines Marktes weiter. Es wendet sich an Fachleute der Finanzmathematik und besitzt Relevanz für Fondsmanager und Privatanleger. Alle Überlegungen basieren auf Nebenbedingungen zur Festlegung des Umfangs an Neuinvestitionen, welche von Investitionsparametern abhängen. Ein weiterer Investitionsparameter ist die Haltefrist, die angibt, wie lange eine eingegangene Investition "gehalten wird", bevor sie beendet wird. Die im zweiten Teil weiter entwickelte Theorie lässt sich wie folgt kennzeichnen: - Sie ist frei von Annahmen über den Kursverlauf der Wertpapiere. Es wird daher nicht versucht, ein realistisches Modell für Kursbewegungen aufzustellen. - Es wird eine endliche Menge von Wertpapieren gehandelt. - Die Investition in ein Wertpapier setzt voraus, dass eine Kaufbedingung erfüllt ist. Nach Ablauf der Haltefrist wird die Investition beendet. - Der Handelsverlauf wird durch elementare rekursive Gleichungen beschrieben, welche durch zwei exogene Größen "angeregt" werden: Die Anzahl der Wertpapiere an jedem Handelstag, für die die Kaufbedingung erfüllt ist und der Gewinn, der sich aus dem Verkauf der Wertpapiere nach Ablauf der Haltefrist ergibt. Die Auswertung dieser Gleichungen für den gesamten Handelszeitraum liefert den Handelserfolg am Ende des Handelns. - Das Investieren in Wertpapiere wird idealisiert, um den Handelserfolg in Abhängigkeit von den exogenen Größen und Investitionsparametern darstellen zu können, ohne die rekursiven Gleichungen auswerten zu müssen. Dies erfolgt durch das sogenannte ideale Handelssystem. Der Handelserfolg des idealen Handelssystems erweitert die statistische Beschreibung aus Teil 1 auf Haltefristen größer als ein Tag. Da durch die Idealisierung die Kausalität verletzt wird, kann das ideale Handelssystem für den Wertpapierhandel nicht implementiert werden. Es ist jedoch simulierbar und quantitativ leichter zugänglich. Die Auswirkung der Verletzung der Kausalität auf den Handelsverlauf und den Handelserfolg wird experimentell und theoretisch in Abhängigkeit von Investitionsparametern detailliert untersucht. T3 - Trading - 2 KW - Investieren unter Nebenbedingungen KW - Ideales Handelssystem KW - investing under constraints KW - ideal trading system KW - moving average KW - return continuation Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-11903 UR - https://opus4.kobv.de/opus4-hs-duesseldorf/1501 SN - 2567-2347 N1 - Zu dieser Publikation gehören Forschungsdaten - siehe Related URL IS - 2 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - GEN A1 - Vogel, Peter T1 - Marktdaten T2 - Trading N2 - Die in der Schriftenreihe Trading verwendeten Forschungsdaten beinhalten historische Kursdaten, geliefert von Lenz+Partner AG (Deutschland), für eine Auswahl an Aktien. Die Datei „FEBRDUSA_1“ zeigt diese Auswahl in Form der deutschen Wertpapierkennnummer (Spalte „Titel“), des Handelszeitraums (Spalten „Beginn“ und „Ende“) und des Aktiennamens. Kursdaten sind in dieser Datei nicht enthalten, sondern liegen in einer umfangreichen Datenbank vor. Die Marktdaten umfassen 867 Aktien und sind das Ergebnis eines im Jahr 2015 durchgeführten Auswahlprozesses mit dem Ziel, Datenqualität und Handelbarkeit der Aktien zu verbessern. Es wurden folgende Bedingungen gefordert: - Die Aktien werden an der Frankfurter Börse gehandelt. - Sie sind in einem der deutschen Aktienindizes DAX, MDAX, TECDAX, SDAX, HDAX, CDAX, Technology All Share, Prime All Share und GEX oder in den amerikanischen Aktienindizes S&P 500 oder Nasdaq 100 gelistet. - Die Kursdaten der in Frankfurt gehandelten Aktien enden nicht vor dem Jahr 2014. - Der (unbereinigte) Eröffnungskurs Ende 2013 beträgt mindestens 1 EUR. Diese Bedingung soll dazu beitragen, das Handeln von „penny stocks“ zu verhindern. Die vorliegende Marktdefinition resultierte in 867 Aktien, die frühestens am 11. Dezember 2014 enden, sodass eine Auswertung der Marktdaten mit vollständigen Kurswerten bis zu diesem Zeitpunkt möglich ist. Der Markt ist groß genug, um interessante Kaufbedingungen mit einer ausreichend großen Anzahl an Kaufkandidaten zu untersuchen. T3 - Trading - 1.1 KW - trading Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-15015 UR - https://opus4.kobv.de/opus4-hs-duesseldorf/815 UR - https://doi.org/10.20385/2567-2347/2018.2 SN - 2567-2347 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - RPRT A1 - Virchow, Fabian A1 - Kerst, Benjamin T1 - Vigilantismus – Forschungsfelder und Thematisierungen KW - FBSK_Webseite KW - Selbstjustiz KW - Bürgerwehr Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-53496 VL - CoRE-Forschungspapier 12 PB - Bonn International Centre for Conflict Studies CY - Bonn ER - TY - JOUR A1 - Virchow, Fabian T1 - Einschüchtern und Vertreiben, Bestrafen und Eskalieren. Instrumentelle Zielsetzungen rechtsterroristischen Handelns JF - Soziale Probleme N2 - Der Beitrag entwickelt anhand zahlreicher Beispiele rechtsterroristischer Gewalt eine Systematisierung instrumenteller Zielsetzungen rechtsterroristischen Handelns. Dabei ruft er zunächst als zentrale weltanschauliche Referenz den völkischen Nationalismus auf, dem biopolitische Paradigmen inhärent sind, denen mittels rechtsterroristischer Gewalt Geltung verschafft werden soll. Dieses ist für eine Vielzahl rechtsterroristischer Gewalttaten zentral, denen es um die Aufrechterhaltung rassistischer, sexistischer und heteronormativer Gesellschaftsverhältnisse geht. Regelmäßig ist solche Gewalt auch als Botschaftsverbrechen zu verstehen, wobei ganz unterschiedliche Modi der Kommunikation beobachtbar sind. Rechtsterroristische Gewalt – sofern sie nicht parastaatlich verfasst ist – hat nicht die direkte Schwächung der Kampffähigkeit des Gegners zum Ziel, sondern zielt auf Bestrafung, Einschüchterung und Vertreibung ausgewählter sozialer Gruppen und Individuen sowie in manchen Fällen auf das strategische Moment der Zuspitzung gesellschaftlicher Konflikte, wie im abschließenden Teil des Beitrages an zahlreichen Beispielen gezeigt wird. KW - FBSK_Webseite Y1 - 2021 U6 - https://doi.org/10.1007/s41059-021-00086-1 SN - 0939-608X VL - 32 IS - 2 SP - 131 EP - 149 PB - Springer Nature ER - TY - CHAP A1 - Virchow, Fabian ED - Mehnert, Alexandra ED - Fraaß, Elisa T1 - Aussteigen kommunizieren: Eine Analyse literarischer Selbstzeugnisse von Neonazis T2 - Ausstiegs- und Distanzierungsberatung: Innovationen und Impulse der Tertiärprävention im Kontext der (extremen) Rechten KW - Rechtsradikalismus KW - Autobiografische Literatur KW - Aussteiger KW - FBSK_Webseite Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50537 SN - 978-3-7566-1692-3 SP - 235 EP - 246 PB - Wochenschau CY - Frankfurt am Main ER - TY - RPRT A1 - Vilain, Michael A1 - Boeßenecker, Karl-Heinz T1 - Blended-Learning : Auswertung der Studierendenbefragung im Lehrgebiet Verwaltung und Organisation N2 - Im Zusammenhang mit den Vorarbeiten zur Einführung eines Blended-Learning Konzeptes sollten die Lernbedürfnisse und das Lernverhalten der Studierenden im Grundstudium V+O der Fachbereiche Sozialarbeit und Sozialpädagogik an der Fachhochschule Düsseldorf ermittelt werden. Die Entwicklung und Umsetzung eines entsprechenden Lernmoduls soll auf den Erkenntnissen dieser Befragung fußen. T3 - Schriftenreihe Arbeitsmaterialien - 17 KW - Wohlfahrtsverbände KW - Arbeitsmaterialien KW - Soziale Arbeit KW - FHD Y1 - 2003 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-3209 VL - 17 CY - Düsseldorf ER - TY - RPRT A1 - Vilain, Michael A1 - Biebricher, Martin A1 - Buckley, Andrea A1 - Boeßenecker, Karl-Heinz T1 - Forschungsprojekt Qualitätsmerkmale und Qualitätsentwicklung in der Sozialen Arbeit : Endbericht N2 - Inhaltsübersicht: 1 Vorbemerkung; 2 Entstehungsgeschichte und Verlauf des Gesamtprojektes; 3 Dritte Phase: theoriebasierte Exploration und Modell; 3.1 Theoriebasierte Exploration und deskriptiv-komparativer Zugang; 3.2 Ein integratives Qualitätsverständnis : QUI; 3.2.1 Die Qualitätsdimensionen: Strukturen, Prozesse, Ergebnisse und Normen; 3.2.2 Der Soll-Ist-Vergleich als Grundlage für die Qualitätsermittlung; 3.2.3 Handlung, Einrichtung und Organisation als Betrachtungsebenen; 3.2.4 Qualität in der Gesamtschau; 4 Abschließende Überlegungen; 5 Literatur; T3 - Schriftenreihe Arbeitsmaterialien - 8b KW - Wohlfahrtsverbände KW - Arbeitsmaterialien KW - Soziale Arbeit KW - FHD Y1 - 2002 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-2422 VL - 8b CY - Düsseldorf ER - TY - RPRT A1 - Vilain, Michael T1 - Entwicklung und Planung mit Quality Function Deployment : eine Bibliographie N2 - Die vorliegende Bibliografie ist ein "Nebenprodukt" umfangreicher Recherchen im Zusammenhang mit den Aktivitäten am Forschungsschwerpunkt Wohlfahrtsverbände/Dritter Sektor an der FH Düsseldorf. Hier war es vor allem das Forschungsprojekt "Qualitätsentwicklung in der Sozialen Arbeit", das unter anderem nach der Bekanntheit und Verbreitung diverser Qualitätsphilosophien, -strategien und -methoden in der Sozialen Arbeit fragte. Im Verlauf des Projektes wurden dazu zahlreiche Ansätze untersucht. Einer davon war Quality Funktion Deployment - besser bekannt unter dem Akronym QFD. Mit QFD liegt ein Instrument zur Planung und Entwicklung von Qualitätsfunktionen entsprechend der vom Kunden geforderten Qualitätseigenschaften vor. Es dient zur Transformation der Kunden- oder Klientenforderungen in die organisationsspezifischen Fähigkeiten und zur zielgerichteten Mobilisierung aller Bereiche des Unternehmens und zielt somit darauf ab, die Stimmme des Kunden (voice of the customer) in erfolgreiche Produkte und Dienstleistungen umzusetzen. Auf diese Weise sollen Fehlschläge oder Verluste durch präventive Planung vermieden werden. T3 - Schriftenreihe Arbeitsmaterialien - 16 KW - Wohlfahrtsverbände KW - Arbeitsmaterialien KW - Soziale Arbeit KW - FHD Y1 - 2002 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-2489 VL - 16 CY - Düsseldorf ER - TY - JOUR A1 - Versümer, Siegbert A1 - Steffens, Jochen A1 - Weinzierl, Stefan T1 - Day-to-day loudness assessments of indoor soundscapes: Exploring the impact of loudness indicators, person, and situation JF - The Journal of the Acoustical Society of America N2 - This study investigates loudness perception in real-world contexts using predictors related to the sound, situation, or person. In the study, 105 participants recorded 6594 sound environments in their homes, which were then evaluated based on the Experience Sampling Method. Hierarchical linear regressions using a loudness level based on ISO 532-1 allowed for obtaining the best model fits for predicting perceived loudness and explaining the highest variance. LAeq and LAF5 provided comparable results and may require less computational effort. However, the analysis shows that only one-third of the variance explained by fixed effects was attributable to the loudness level. Sixteen percent stemmed from perceived properties of the soundscape; 1% were attributable to relatively temporally stable, person-related predictors like participants' age; non-auditory situational predictors made no additional contribution. The results thus did not confirm previous findings on loudness perception under laboratory conditions, emphasizing the importance of the situational context. Along with the current paper, a comprehensive dataset, including the assessed person-related, situational, and sound-related measures as well as LAeq time-series and third-octave spectrograms, is provided to enable further research on sound perception, indoor soundscapes, and emotion. KW - Lautwahrnehmung KW - Akustische Eigenschaft KW - Hörschädigung KW - Lautstärke KW - Audiometrie KW - Sonogramm KW - Regressionsanalyse KW - Gauß-Prozess KW - Auditory perception KW - Acoustical properties KW - Hearing impairment KW - Loudness perception KW - Audiometry KW - Acoustic noise control KW - Spectrograms KW - Acoustic ecology KW - Regression analysis KW - Gaussian processes Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46127 SN - 0001-4966 VL - 153 IS - 5 SP - 2956 EP - 2972 PB - Acoustical Society of America (ASA) ER -