TY - JOUR AU - FitzGerald, Clare AU - Fraser, Alec AU - Kimmitt, Jonathan AU - Knoll, Lisa AU - Williams, James ID - 45655 IS - 3 JF - International Public Management Journal KW - Public Administration KW - Business and International Management SN - 1096-7494 TI - Outcomes-based contracting and public management reform: Lessons from a decade of experimentation VL - 26 ER - TY - CONF AB - The nonlinear optical response of an ensemble of semiconductor quantum dots is analyzed by wave-mixing processes, where we focus on four-wave mixing with two incident pulses. Wave-mixing experiments are often described with semiclassical models, where the light is modeled classically and the material quantum mechanically. Here, however, we use a fully quantized model, where the light is given by a quantum state of light. Quantum light involves more degrees of freedom than classical light as e.g., its photon statistics and quantum correlations, which is a promising resource for quantum devices, such as quantum memories. The light-matter interaction is treated with a Jaynes-Cummings type model and the quantum field is given by a single mode since the quantum dots are embedded in a microcavity. We present numerical simulations of the four-wave-mixing response of a homogeneous system for pulse sequences and find a significant dependence of the result on the photon statistics of the incident pulses. The model constitutes a problem with a large state space which arises from the frequency distribution of the transition energies of the inhomogeneously broadened quantum dot ensemble that is coupled with a quantum light mode. Here we approximate the dynamics by summing over individual quantum dot-microcavity systems. Photon echoes arising from the excitation with different quantum states of light are simulated and compared. AU - Rose, Hendrik AU - Grisard, S. AU - Trifonov, A. V. AU - Reichhardt, R. AU - Reichelt, Matthias AU - Bayer, M. AU - Akimov, I. A. AU - Meier, Torsten ID - 43192 T2 - Ultrafast Phenomena and Nanophotonics XXVII TI - Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light VL - 12419 ER - TY - CHAP AU - Freymuth, Nina ED - Balz, HHans-Jürgen ED - Huneke, Annika ED - Kuhlmann, Carola ED - Römisch, Kathrin ID - 45606 T2 - Diskriminierungsprozesse und Teilhabeperspektiven - Herausforderungen für die Praxis der Inklusion. Ausgewählte Master-Thesen 2018-2022 des Masterstudiengangs "Soziale Inklusion: Gesundheit und Bildung" der Evangelischen Hochschule Rheinland-Westfalen-Lippe TI - Alternative für alle? Inklusionsspezifische Analyse der AfD und ihrer Wähler*innen ER - TY - CONF AU - Badran, Abdalrhman AU - Sadeghi-Kohan, Somayeh AU - Reimer, Jan Dennis AU - Hellebrand, Sybille ID - 41875 T2 - 28th IEEE European Test Symposium (ETS'23), May 2023 TI - Approximate Computing: Balancing Performance, Power, Reliability, and Safety ER - TY - JOUR AU - Dieter, Peter AU - Caron, Matthew AU - Schryen, Guido ID - 44383 IS - 1 JF - European Journal of Operational Research (EJOR) TI - Integrating driver behavior into last-mile delivery routing: Combining machine learning and optimization in a hybrid decision support framework VL - 311 ER - TY - GEN AU - Frick, Bernd AU - Spiess Bru, Clarissa AU - Kaimann, Daniel ID - 45666 TI - Are Women (Really) More Lenient? Gender Differences in Expert Evaluations VL - 106 ER - TY - GEN AU - Kaimann, Daniel AU - Spiess Bru, Clarissa ID - 45665 TI - Sounds too Feminine? Brand Gender and The Impact on Professional Critics VL - 107 ER - TY - THES AU - Beck-Werz, Lisa ID - 45669 TI - Essays on Choices and Behavior in Competitive Situations ER - TY - JOUR AU - Meier, Jana AU - Janzen, Thomas AU - Wotschel, Philipp AU - Vogelsang, Christoph ID - 45672 JF - die hochschullehre TI - Rollenspielbasierte Simulationen als Übungs- und Prüfungsformate im Lehramtsstudium. Eine explorative Studie zu Erfahrungen und Einschätzungen aus Studierendensicht. VL - 9 ER - TY - JOUR AU - Blachut, Alisa AU - Topalović, Elvira AU - Uhrig, Sissy ID - 42329 JF - Der Deutschunterricht TI - Grammatik in deutschen und niederländischen DaF-Lehrbüchern: Synergien für den Deutschunterricht VL - 3 ER - TY - BOOK ED - Topalović, Elvira ED - Blachut, Alisa ID - 42328 TI - Grammatische Modelle. Themenschwerpunkt von "Der Deutschunterricht" 3/2023 ER - TY - CONF AU - Behler, Felix ID - 45676 T2 - Narrative Ethics and Character in the Representation of the Past in Contemporary Fiction TI - (Re-)inventing Biblical Traditions: The Representation of Pontius Pilate in Contemporary Historical Fiction ER - TY - BOOK AU - Herding, Jana AU - Carle, U. ID - 45344 TI - Von der Grundschule in die Sekundarstufe. Übergänge ressourcenorientiert gestalten (Hrsg. von Petra Büker) VL - 10 ER - TY - JOUR AU - Zdoupas, Philippos AU - Laubenstein, Désirée ID - 45324 IS - 3 JF - Social Sciences TI - ‘I Feel Well, Accepted and Competent in School’—Determinants of Self-Perceived Inclusion and Academic Self-Concept in Students with Diagnosed Behavioral, Emotional and Social Difficulties (BESD) VL - 12 ER - TY - CONF AU - Hotegni, Sedjro Salomon AU - Mahabadi, Sepideh AU - Vakilian, Ali ID - 45695 KW - Fair range clustering T2 - Proceedings of the 40th International Conference on Machine Learning, Honolulu, Hawaii, USA. PMLR 202, 2023. TI - Approximation Algorithms for Fair Range Clustering ER - TY - CHAP AU - Aghaei Abrandabadi, Seyed Ali ED - Blecher, Joel ED - Brinkmann, Stefanie ID - 45696 T2 - Hadith Commentary: Continuity and Change TI - The Hermeneutics of al-Sharīf al-Murtaḍā (d. 436/1044) in the Interpretation of Akhbār al-Āḥād in his Kitāb al-Amālī ER - TY - CONF AU - Hebrok, Sven Niclas AU - Nachtigall, Simon AU - Maehren, Marcel AU - Erinola, Nurullah AU - Merget, Robert AU - Somorovsky, Juraj AU - Schwenk, Jörg ID - 43060 T2 - 32nd USENIX Security Symposium TI - We Really Need to Talk About Session Tickets: A Large-Scale Analysis of Cryptographic Dangers with TLS Session Tickets ER - TY - CHAP AU - Dorogova, Elizaveta ED - Oeming, Manfred ED - Schmidt, Nora ID - 45700 T2 - Hermeneutiken der Weisheit TI - Weisheit und moralischer Intellektualismus im Koran aus intertextueller Perspektive ER - TY - CHAP AU - Ghaffar, Zishan ED - Wacker, Marie-Theres ED - Bechmann, Ulrike ED - Langer, Gerhard ID - 45701 T2 - Prophetie in Tenach, Bibel und Qur'an TI - Prophetologie – Eine Annäherung ER - TY - JOUR AB - Faradaic reactions including charge transfer are often accompanied with diffusion limitation inside the bulk. Conductive two-dimensional frameworks (2D MOFs) with a fast ion transport can combine both - charge transfer and fast diffusion inside their porous structure. To study remaining diffusion limitations caused by particle morphology, different synthesis routes of Cu-2,3,6,7,10,11-hexahydroxytriphenylene (Cu3(HHTP)2), a copper-based 2D MOF, are used to obtain flake- and rod-like MOF particles. Both morphologies are systematically characterized and evaluated for redox-active Li+ ion storage. The redox mechanism is investigated by means of X-ray absorption spectroscopy, FTIR spectroscopy and in situ XRD. Both types are compared regarding kinetic properties for Li+ ion storage via cyclic voltammetry and impedance spectroscopy. A significant influence of particle morphology for 2D MOFs on kinetic aspects of electrochemical Li+ ion storage can be observed. This study opens the path for optimization of redox active porous structures to overcome diffusion limitations of Faradaic processes. AU - Wrogemann, Jens Matthies AU - Lüther, Marco Joes AU - Bärmann, Peer AU - Lounasvuori, Mailis AU - Javed, Ali AU - Tiemann, Michael AU - Golnak, Ronny AU - Xiao, Jie AU - Petit, Tristan AU - Placke, Tobias AU - Winter, Martin ID - 44116 IS - 26 JF - Angewandte Chemie International Edition KW - General Chemistry KW - Catalysis SN - 1433-7851 TI - Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage VL - 62 ER - TY - JOUR AB - Since high-order harmonic generation (HHG) from atoms depends sensitively on the polarization of the driving laser field, the polarization gating (PG) technique was developed and applied successfully to generate isolated attosecond pulses from atomic gases. The situation is, however, different in solid-state systems as it has been demonstrated that due to collisions with neighboring atomic cores of the crystal lattice strong HHG can be generated even by elliptically- and circularly-polarized laser fields. Here we apply PG to solid-state systems and find that the conventional PG technique is inefficient for the generation of isolated ultrashort harmonic pulse bursts. In contrast, we demonstrate that a polarization-skewed laser pulse is able to confine the harmonic emission to a time window of less than one-tenth of the laser cycle. This method provides a novel way to control HHG and to generate isolated attosecond pulses in solids. AU - Song, Xiaohong AU - Yang, Shidong AU - Wang, Guifang AU - Lin, Jianpeng AU - Wang, Liang AU - Meier, Torsten AU - Yang, Weifeng ID - 45704 IS - 12 JF - Optics Express KW - Atomic and Molecular Physics KW - and Optics SN - 1094-4087 TI - Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse VL - 31 ER - TY - JOUR AU - Zuo, Ruixin AU - Song, Xiaohong AU - Ben, Shuai AU - Meier, Torsten AU - Yang, Weifeng ID - 45703 IS - 2 JF - Physical Review Research KW - General Physics and Astronomy SN - 2643-1564 TI - Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation VL - 5 ER - TY - JOUR AU - Belobo, D. Belobo AU - Meier, Torsten ID - 45709 JF - Results in Physics KW - General Physics and Astronomy SN - 2211-3797 TI - Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings ER - TY - GEN AB - We study analytic aspects of the Dunkl-type Hankel transform, which goes back to Baker and Forrester and, in an earlier symmetrized version, to Macdonald. Moreover, we introduce a Dunkl analogue of the Bessel function and K-Bessel function generalizing those of a symmetric cone. Further, we take a look at zeta integrals and their distributional extensions in the Dunkl setting. These distributions are closely related to Dunkl-type Riesz distributions. Further, we study regularity properties of the zeta distributions and prove a functional equation relating zeta distributions and their Dunkl transform. AU - Brennecken, Dominik ID - 45707 T2 - arXiv:2303.15952 TI - Hankel transform, K-Bessel functions and zeta distributions in the Dunkl setting ER - TY - BOOK ED - Tatari, Muna ED - Nassery, Idris ID - 45705 TI - Dynamics of Tradition: Islamic Law and Theology in Relation ER - TY - CHAP AB - The field of teaching technologies is in constant interplay between educational and industrial advances. Since the beginning of the twenty-first century, digitalization and automatization have become increasingly important. In industrial and social life, we see similar fast-moving developments. These factors challenge education, specifically vocational education, greatly, and raise two very different, yet very much connected questions: how to prepare students for their vocational lives and how to prepare teachers to communicate the necessary competencies to their students? This chapter provides an overview of advances, challenges, and possible solutions, focusing on the three key fields of vocational education in Germany: Industry 4.0, Education 4.0, and innovative teacher education. Most importantly, however, the text examines the continuous interplay between and among these fields. The beginning of the chapter is dedicated to vocational teacher education, in accordance with industrial and educational advances. Specifying this, characteristics of Industry 4.0, as well as students' and teachers' perceptions of Industry 4.0, are discussed. This is followed by an introduction to the concept of so-called learning factories as a possible way of integrating aspects of Industry 4.0 in German vocational schools. The end of the chapter is dedicated to the required changes in educational settings today and in the future. Though Industry 4.0, Education 4.0, and innovative teacher education are each widely discussed in the current literature, the interplay of all three fields reveals a research gap. This chapter tries to close this gap and provide an important contribution to the research field. AU - Jonas-Ahrend, Gabriela AU - Vernholz, Mats AU - Temmen, Katrin ED - Craig, Cheryl J. ED - Mena, Juanjo ED - Kane, Ruth G. ID - 45552 SN - 1479-3687 T2 - Teacher Education in the Wake of Covid-19 TI - Teaching Technologies: Continuous Interplay Between Educational and Industrial Advances VL - 41 ER - TY - JOUR AU - Schmolke, Tobias AU - Brunner-Schwer, Christian AU - Biegler, Max AU - Rethmeier, Michael AU - Meschut, Gerson ID - 45663 IS - 3 JF - Journal of Manufacturing and Materials Processing TI - On Welding of High-Strength Steels Using Laser Beam Welding and Resistance Spot Weld Bonding with Emphasis on Seam Leak Tightness VL - 7 ER - TY - CHAP AU - Eckel, Julia ED - Gerling, Winfried ED - Möring, Sebastian ED - de Mutiis, Marco ID - 44461 T2 - Screen-Images. Screenshot, Screencast, In-Game Photography TI - Screencasting: Documenting Processuality ER - TY - JOUR AU - Häsel-Weide, Uta ID - 45712 IS - 339 JF - Die Grundschulzeitschrift TI - Inklusiver Mathematikunterricht. Mathematiklernen in Vielfalt von Kompetenzen, Wegen und Lernsituationen ER - TY - JOUR AU - Graf, Lara Marie AU - Wienhues, Inga AU - Häsel-Weide, Uta ID - 45713 IS - 339 JF - Die Grundschulzeitschrift TI - Addition und Subtraktion verstehen ER - TY - CHAP AU - Eckel, Julia AU - Linseisen, Elisa ED - Steinhoff, Heike ID - 45716 T2 - Epidemics and Othering. The Biopolitics of COVID-19 in Historical and Cultural Perspectives TI - The Virus Is Present, Presence Is Virulent: Being Co(m)present With Others in Times of Corona ER - TY - GEN ED - Eckel, Julia ED - Ernst, Christoph ED - Schröter, Jens ID - 36842 IS - 1 KW - tech demo KW - technology demonstration KW - demo or die SN - 1619-1641 T2 - Navigationen - Zeitschrift für Medien- und Kulturwissenschaften TI - Navigationen: Tech | Demo VL - 23 ER - TY - JOUR AB - AbstractThree prominent low order implicit time integration schemes are the first order implicit Euler-method, the second order trapezoidal rule and the second order Ellsiepen method. Its advantages are stability and comparatively low computational cost, however, they require the solution of a nonlinear system of equations. This paper presents a general approach for the construction of third order Runge–Kutta methods by embedding the above mentioned implicit schemes into the class of ELDIRK-methods. These will be defined to have an Explicit Last stage in the general Butcher array of Diagonal Implicit Runge–Kutta (DIRK) methods, with the consequence, that no additional system of equations must be solved. The main results—valid also for non-linear ordinary differential equations—are as follows: Two extra function calculations are required in order to embed the implicit Euler-method and one extra function calculation is required for the trapezoidal-rule and the Ellsiepen method, in order to obtain the third order properties, respectively. Two numerical examples are concerned with a parachute with viscous damping and a two-dimensional laser beam simulation. Here, we verify the higher order convergence behaviours of the proposed new ELDIRK-methods, and its successful performances for asymptotically exact global error estimation of so-called reversed embedded RK-method are shown. AU - Mahnken, Rolf ID - 45757 JF - Computational Mechanics KW - Applied Mathematics KW - Computational Mathematics KW - Computational Theory and Mathematics KW - Mechanical Engineering KW - Ocean Engineering KW - Computational Mechanics SN - 0178-7675 TI - Derivation of third order Runge–Kutta methods (ELDIRK) by embedding of lower order implicit time integration schemes for local and global error estimation ER - TY - CONF AU - Abbas, Nilab AU - Bauer, Anna Brigitte AU - Reinhold, Peter ED - van Vorst, Helena ID - 45759 T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt TI - PSΦ: Entwicklung von Unterstützungsmaßnahmen für Theoretische Physik ER - TY - CONF AU - Bauer, Anna Brigitte AU - Reinhold, Peter ED - van Vorst, Helena ID - 45758 T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt TI - PSФ: Entwicklung einer abgestimmten Studieneingangsphase (Physik) ER - TY - JOUR AB - Abstract The development of potential theory heightens the understanding of fundamental interactions in quantum systems. In this paper, the bound state solution of the modified radial Klein-Gordon equation is presented for generalised tanh-shaped hyperbolic potential from the Nikiforov-Uvarov method. The resulting energy eigenvalues and corresponding radial wave functions are expressed in terms of the Jacobi polynomials for arbitrary $l$ states. It is also demonstrated that energy eigenvalues strongly correlate with potential parameters for quantum states. Considering particular cases, the generalised tanh-shaped hyperbolic potential and its derived energy eigenvalues exhibit good agreement with the reported findings. Furthermore, the rovibrational energies are calculated for three representative diatomic molecules, namely $\rm{H_{2}}$, $\rm{HCl}$ and $\rm{O_{2}}$. The lowest excitation energies are in perfect agreement with experimental results. Overall, the potential model is displayed to be a viable candidate for concurrently prescribing numerous quantum systems. AU - Badalov, Vatan AU - Badalov, Sabuhi ID - 45763 JF - Communications in Theoretical Physics KW - Physics and Astronomy (miscellaneous) SN - 0253-6102 TI - Generalised tanh-shaped hyperbolic potential: Klein-Gordon equation's bound state solution ER - TY - GEN AU - Simon-Mertens, Florian ID - 45762 TI - Effizienzanalyse leichtgewichtiger Neuronaler Netze für FPGA-basierte Modulationsklassifikation ER - TY - JOUR AB - A series of new organic donor–π–acceptor dyes incorporating a diquat moiety as a novel electron-acceptor unit have been synthesized and characterized. The analytical data were supported by DFT calculations. These dyes were explored in the aerobic thiocyanation of indoles and pyrroles. Here they showed a high photocatalytic activity under visible light, giving isolated yields of up to 97 %. In addition, the photocatalytic activity of standalone diquat and methyl viologen through formation of an electron donor acceptor complex is presented. AU - Meier, Armin AU - Badalov, Sabuhi AU - Biktagirov, Timur AU - Schmidt, Wolf Gero AU - Wilhelm, René ID - 43827 IS - 22 JF - Chemistry – A European Journal KW - General Chemistry KW - Catalysis KW - Organic Chemistry SN - 0947-6539 TI - Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation VL - 29 ER - TY - CONF AB - RISC-V has received worldwide acceptance in the industry and by the academic community. As of today, multiple RISC-V applications and variants are under investigation for embedded IoT systems, from resource-limited single-core processors up to multi-core systems for High-Performance Computing (HPC). Recently, the Grid of Processing Cells (GPC) platform has been proposed as a scalable parallel grid-oriented network of processor cores with local memories. This paper describes a prototype design of the GPC platform for hardware implementation at Register-Transfer Level (RTL) based on modified RISC-V Rocket processors with scratchpad memories. It introduces a scalable Chisel-based implementation of the modified Rocket cores with RTL generation and a functional test using Verilator simulation. This work also includes the adaptation of the Chipyard software toolchain to extend the compiler to multi-core grids with different local address spaces. AU - Luchterhandt, Lars AU - Nellius, Tom AU - Beck, Robert AU - Dömer, Rainer AU - Kneuper, Pascal AU - Müller, Wolfgang AU - Sadiye, Babak ID - 45778 T2 - MBMV 2023 - 26. Workshop "Methoden und Beschreibungssprachen zur Modellierung und Verifikation von Schaltungen und Systemen“ TI - Methoden und Beschreibungssprachen zur Modellierung und Verifikation von Schaltungen und Systemen ER - TY - JOUR AB - As a benchmark, the structural, electronic and optical properties of the three main phases of TiO$\rm{_2}$ crystals have been calculated using Hubbard U correction and hybrid functional methods in density-functional theory. These calculations are compared concerning the available experimental observations on pristine TiO$\rm{_2}$ crystals. Modified hybrid functionals, particularly the PBE0 functional with 11.4% fraction of exact exchange, are shown to provide highly accurate atomic structures and also accurate electronic structure data, including optical excitation energies. With $\rm{DFT+U}$, accurate optical spectra are also possible, but only if the Hubbard U is applied on the O $\rm2p$ electrons exclusively. Furthermore, both methods, the 11.4%-PBE0 hybrid functional and the $\rm{DFT+U_p}$ scheme have been used to study TiO$\rm{_2}$ amorphous ultra-thin films, confirming the agreement of the two methods even with respect to small details of the optical spectra. Our results show that the proposed $\rm{DFT+U_p}$ methodology is computationally efficient, but still accurate. It can be applied to well-ordered TiO$\rm{_2}$ polymorphs as well as to amorphous TiO$\rm{_2}$ and will allow for the calculations of complex titania-based structures. AU - Badalov, Sabuhi AU - Bocchini, Adriana AU - Wilhelm, Rene AU - Kozub, A. L. AU - Gerstmann, Uwe AU - Schmidt, Wolf Gero ID - 45764 JF - Materials Research Express TI - Rutile, anatase, brookite and titania thin film from Hubbard corrected and hybrid DFT ER - TY - CONF AU - Ecker, Wolfgang AU - Krstic, Milos AU - Ulbricht, Markus AU - Mauderer, Andreas AU - Jentzsch, Eyck AU - Koch, Andreas AU - Koppelmann, Bastian AU - Müller, Wolfgang AU - Sadiye, Babak AU - Bruns, Niklas AU - Drechsler, Rolf AU - Müller-Gritschneder, Daniel AU - Schlamelcher, Jan AU - Grüttner, Kim AU - Bormann, Jörg AU - Kunz, Wolfgang AU - Heckmann, Reinhold AU - Angst, Gerhard AU - Wimmer, Ralf AU - Becker, Bernd AU - Faller, Tobias AU - Palomero Bernardo, Paul AU - Brinkmann, Oliver AU - Partzsch, Johannes AU - Mayr, Christian ID - 45776 T2 - Scale4Edge – Scaling RISC-V for Edge Applications TI - Scale4Edge – Scaling RISC-V for Edge Applications ER - TY - JOUR AB - The development of automotive components with reduced greenhouse gas (GHG) emissions is needed to reduce overall vehicle emissions. Life Cycle Engineering (LCE) based on Life Cycle Assessment (LCA) supports this by providing holistic information and improvement potentials regarding eco-efficient products. Key factors influencing LCAs of automotive components, such as material production, will change in the future. First approaches for integrating future scenarios for these key factors into LCE already exist, but they only consider a limited number of parameters and scenarios. This work aims to develop a method that can be practically applied in the industry for integrating prospective LCAs (pLCA) into the LCE of automotive components, considering relevant parameters and consistent scenarios. Therefore, pLCA methods are further developed to investigate the influence of future scenarios on the GHG emissions of automotive components. The practical application is demonstrated for a vehicle component with different design options. This paper shows that different development paths of the foreground and background system can shift the ecological optimum of design alternatives. Therefore, future pathways of relevant parameters must be considered comprehensively to reduce GHG emissions of future vehicles. This work contributes to the methodological and practical integration of pLCA into automotive development processes and provides quantitative results. AU - Grenz, Julian AU - Ostermann, Moritz AU - Käsewieter, Karoline AU - Cerdas, Felipe AU - Marten, Thorsten AU - Herrmann, Christoph AU - Tröster, Thomas ID - 45782 IS - 13 JF - Sustainability KW - prospective LCA KW - life cycle engineering (LCE) KW - lightweight design KW - automotive components KW - body parts KW - circular economy KW - steel KW - aluminum KW - hybrid materials KW - fiber metal laminates SN - 2071-1050 TI - Integrating Prospective LCA in the Development of Automotive Components VL - 15 ER - TY - CONF AB - The global megatrends of digitization and sustainability lead to new challenges for the design and management of technical products in industrial companies. Product management - as the bridge between market and company - has the task to absorb and combine the manifold requirements and make the right product-related decisions. In the process, product management is confronted with heterogeneous information, rapidly changing portfolio components, as well as increasing product, and organizational complexity. Combining and utilizing data from different sources, e.g., product usage data and social media data leads to promising potentials to improve the quality of product-related decisions. In this paper, we reinforce the need for data-driven product management as an interdisciplinary field of action. The state of data-driven product management in practice was analyzed by conducting workshops with six manufacturing companies and hosting a focus group meeting with experts from different industries. We investigate the expectations and derive requirements leading us to open research questions, a vision for data-driven product management, and a research agenda to shape future research efforts. AU - Grigoryan, Khoren AU - Fichtler, Timm AU - Schreiner, Nick AU - Rabe, Martin AU - Panzner, Melina AU - Kühn, Arno AU - Dumitrescu, Roman AU - Koldewey, Christian ID - 45793 KW - Product Management KW - Data Analytics KW - Data-Driven Design KW - Product-related data KW - Lifecycle Data KW - Tool-support T2 - Procedia CIRP 33 TI - Data-Driven Product Management: A Practitioner-Driven Research Agenda ER - TY - JOUR AB - Abstract Background Occupational health interventions for leaders are underrepresented in small and medium-sized enterprises (SMEs). When creating and developing effective occupational health interventions, identification of the specific needs of the target group is regarded as an essential step before planning an intervention. Therefore, the aim of this study was (1) to examine the subjectively experienced work-related stressors of leaders in small and medium-sized IT and technological services enterprises, (2) to explore coping behaviors leaders use to deal with the experienced work-related stressors, (3) to investigate resources supporting the coping process and (4) to identify potentially self-perceived consequences resulting from the experienced stressors. Methods Ten semi-structured interviews with leaders in small and medium-sized IT and technological services enterprises were conducted. The interviews were transcribed and analyzed with content-structuring qualitative content analysis in accordance to Kuckartz. Results Leaders in small and medium-sized IT and technological services enterprises experience various stressors caused by work organization as well as industry-related stressors and other work-related stressors. To address the experienced stressors, leaders apply problem focused coping behaviors (e.g. performing changes on structural and personal level), emotional focused coping behaviors (e.g. balancing activities, cognitive restructuring) as well as the utilization of social support. Helpful resources for the coping process include organizational, social and personal resources. As a result of the experienced work-related stressors, interviewees stated to experience different health impairments, negative effects on work quality as well as neglect of leisure activities and lack of time for family and friends. Conclusion The identified experienced work-related stressors, applied coping behaviors, utilized resources and emerging consequences underpin the urgent need for the development and performance of health-oriented leadership interventions for leaders in small and medium- sized IT and technological services. The results of this study can be used when designing a target-oriented intervention for the examined target group. AU - Dannheim, Indra AU - Buyken, Anette AU - Kroke, Anja ID - 45807 IS - 1 JF - BMC Public Health KW - Public Health KW - Environmental and Occupational Health SN - 1471-2458 TI - Work-related stressors and coping behaviors among leaders in small and medium-sized IT and technological services enterprises VL - 23 ER - TY - JOUR AB - Abstract Objective: To systematically review the impact of choice architecture interventions (CAI) on the food choice of healthy adolescents in a secondary school setting. Factors potentially contributing to the effectiveness of CAI types and numbers implemented and its long-term success were examined. Design: PUBMED and Web of Science were systematically searched in October 2021. Publications were included following predefined inclusion criteria and grouped according to number and duration of implemented interventions. Intervention impact was determined by systematic description of the reported quantitative changes in food choice and/or consumption. Intervention types were compared with regards to food selection and sustained effects either during or following the intervention. Setting: CAI on food choice of healthy adolescents in secondary schools. Participants: Not applicable Results: Fourteen studies were included; four randomized controlled trials and five each of controlled or uncontrolled pre-post design, respectively. Four studies implemented a single CAI type, with ten implementing > 1. Three studies investigated CAI effects over the course of a school year either by continuous or repeated data collection, while ten studies’ schools were visited on selected days during intervention. Twelve studies reported desired changes in overall food selection, yet effects were not always significant, and appeared less conclusive for longer term studies. Conclusions: This review found promising evidence that CAI can be effective in encouraging favorable food choices in healthy adolescents in a secondary school setting. However, further studies designed to evaluate complex interventions are needed. AU - Schulte, Eva A. AU - Winkler, Gertrud AU - Brombach, Christine AU - Buyken, Anette ID - 45806 JF - Public Health Nutrition KW - Public Health KW - Environmental and Occupational Health KW - Nutrition and Dietetics KW - Medicine (miscellaneous) SN - 1368-9800 TI - Choice architecture interventions promoting sustained healthier food choice and consumption by students in a secondary school setting: A systematic review of intervention studies ER - TY - JOUR AB - Background: Establishing a healthy lifestyle has a great potential to reduce the prevalence of non-communicable diseases (NCDs) and their risk factors. NCDs contribute immensely to the economic costs of the health care system arising from therapy, medication use, and productivity loss. Aim: The aim of this study was to evaluate the effect of the Healthy Lifestyle Community Program (cohort 2; HLCP-2) on medication use and consequently on medication costs for selected NCDs (diabetes, hypertension, and dyslipidemia). Methods: Data stem from a 24-month non-randomised, controlled intervention trial aiming to improve risk factors for NCDs. Participants completed questionnaires at six measurement time points assessing medication use, from which costs were calculated. The following medication groups were included in the analysis as NCD medication: glucose-lowering medications (GLM), antihypertensive drugs (AHD) and lipid-lowering drugs (LLD). Statistical tests for inter- and intra-group comparison and multiple regression analysis were performed. Results: In total, 118 participants (intervention group [IG]: n = 79; control group [CG]: n = 39) were considered. Compared to baseline medication use decreased slightly in the IG and increased in the CG. Costs for NCD medication were significantly lower in the IG than in the CG after 6 ( p = 0.004), 12 ( p = 0.040), 18 ( p = 0.003) and 24 months ( p = 0.008). After multiple regression analysis and adjusting for confounders, change of costs differed significantly between the groups in all final models. Conclusion: The HLCP-2 was able to moderately prevent an increase of medication use and thus reduce costs for medication to treat NCDs with the greatest impact on AHD. Trial registration German Clinical Trials Register DRKS ( www.drks.de ; reference: DRKS00018775). AU - Kranz, Ragna-Marie AU - Kettler, Carmen AU - Anand, Corinna AU - Koeder, Christian AU - Husain, Sarah AU - Schoch, Nora AU - Buyken, Anette AU - Englert, Heike ID - 45810 JF - Nutrition and Health KW - Nutrition and Dietetics KW - General Medicine KW - Medicine (miscellaneous) SN - 0260-1060 TI - Effect of a controlled lifestyle intervention on medication use and costs: The Healthy Lifestyle Community Program (cohort 2) ER - TY - JOUR AB - A previous follow-up of the GINIplus study showed that breastfeeding could protect against early eczema. However, effects diminished in adolescence, possibly indicating a “rebound effect” in breastfed children after initial protection. We evaluated the role of early eczema until three years of age on allergies until young adulthood and assessed whether early eczema modifies the association between breastfeeding and allergies. Data from GINIplus until 20-years of age (N = 4058) were considered. Information on atopic eczema, asthma, and rhinitis was based on reported physician’s diagnoses. Adjusted Odds Ratios (aOR) were modelled by using generalized estimating equations. Early eczema was associated with eczema (aORs = 3.2–14.4), asthma (aORs = 2.2–2.7), and rhinitis (aORs = 1.2–2.7) until young adulthood. For eczema, this association decreased with age (p-for-interaction = 0.002–0.006). Longitudinal models did not show associations between breastfeeding and the respective allergies from 5 to 20 years of age. Moreover, early eczema generally did not modify the association between milk feeding and allergies except for rhinitis in participants without family history of atopy. Early eczema strongly predicts allergies until young adulthood. While preventive effects of full breastfeeding on eczema in infants with family history of atopy does not persist until young adulthood, the hypothesis of a rebound effect after initial protection cannot be confirmed. AU - Libuda, Lars AU - Filipiak-Pittroff, Birgit AU - Standl, Marie AU - Schikowski, Tamara AU - von Berg, Andrea AU - Koletzko, Sibylle AU - Bauer, Carl-Peter AU - Heinrich, Joachim AU - Berdel, Dietrich AU - Gappa, Monika ID - 45813 IS - 12 JF - Nutrients KW - Food Science KW - Nutrition and Dietetics SN - 2072-6643 TI - Full Breastfeeding and Allergic Diseases—Long-Term Protection or Rebound Effects? VL - 15 ER - TY - CONF AB - The notion of neural collapse refers to several emergent phenomena that have been empirically observed across various canonical classification problems. During the terminal phase of training a deep neural network, the feature embedding of all examples of the same class tend to collapse to a single representation, and the features of different classes tend to separate as much as possible. Neural collapse is often studied through a simplified model, called the unconstrained feature representation, in which the model is assumed to have "infinite expressivity" and can map each data point to any arbitrary representation. In this work, we propose a more realistic variant of the unconstrained feature representation that takes the limited expressivity of the network into account. Empirical evidence suggests that the memorization of noisy data points leads to a degradation (dilation) of the neural collapse. Using a model of the memorization-dilation (M-D) phenomenon, we show one mechanism by which different losses lead to different performances of the trained network on noisy data. Our proofs reveal why label smoothing, a modification of cross-entropy empirically observed to produce a regularization effect, leads to improved generalization in classification tasks. AU - Nguyen, Duc Anh AU - Levie, Ron AU - Lienen, Julian AU - Kutyniok, Gitta AU - Hüllermeier, Eyke ID - 31880 T2 - International Conference on Learning Representations, ICLR TI - Memorization-Dilation: Modeling Neural Collapse Under Noise ER - TY - GEN AB - Label noise poses an important challenge in machine learning, especially in deep learning, in which large models with high expressive power dominate the field. Models of that kind are prone to memorizing incorrect labels, thereby harming generalization performance. Many methods have been proposed to address this problem, including robust loss functions and more complex label correction approaches. Robust loss functions are appealing due to their simplicity, but typically lack flexibility, while label correction usually adds substantial complexity to the training setup. In this paper, we suggest to address the shortcomings of both methodologies by "ambiguating" the target information, adding additional, complementary candidate labels in case the learner is not sufficiently convinced of the observed training label. More precisely, we leverage the framework of so-called superset learning to construct set-valued targets based on a confidence threshold, which deliver imprecise yet more reliable beliefs about the ground-truth, effectively helping the learner to suppress the memorization effect. In an extensive empirical evaluation, our method demonstrates favorable learning behavior on synthetic and real-world noise, confirming the effectiveness in detecting and correcting erroneous training labels. AU - Lienen, Julian AU - Hüllermeier, Eyke ID - 45814 T2 - arXiv:2305.13764 TI - Mitigating Label Noise through Data Ambiguation ER - TY - CONF AU - Özcan, Leon AU - Fichtler, Timm AU - Kasten, Benjamin AU - Koldewey, Christian AU - Dumitrescu, Roman ID - 45812 KW - Digital Platform KW - Platform Strategy KW - Strategic Management KW - Platform Life Cycle KW - Interview Study KW - Business Model KW - Business-to-Business KW - Two-sided Market KW - Multi-sided Market TI - Interview Study on Strategy Options for Platform Operation in B2B Markets ER -