TY - GEN AB - Knowledge bases are widely used for information management on the web, enabling high-impact applications such as web search, question answering, and natural language processing. They also serve as the backbone for automatic decision systems, e.g. for medical diagnostics and credit scoring. As stakeholders affected by these decisions would like to understand their situation and verify fair decisions, a number of explanation approaches have been proposed using concepts in description logics. However, the learned concepts can become long and difficult to fathom for non-experts, even when verbalized. Moreover, long concepts do not immediately provide a clear path of action to change one's situation. Counterfactuals answering the question "How must feature values be changed to obtain a different classification?" have been proposed as short, human-friendly explanations for tabular data. In this paper, we transfer the notion of counterfactuals to description logics and propose the first algorithm for generating counterfactual explanations in the description logic $\mathcal{ELH}$. Counterfactual candidates are generated from concepts and the candidates with fewest feature changes are selected as counterfactuals. In case of multiple counterfactuals, we rank them according to the likeliness of their feature combinations. For evaluation, we conduct a user survey to investigate which of the generated counterfactual candidates are preferred for explanation by participants. In a second study, we explore possible use cases for counterfactual explanations. AU - Sieger, Leonie Nora AU - Heindorf, Stefan AU - Blübaum, Lukas AU - Ngonga Ngomo, Axel-Cyrille ID - 37937 T2 - arXiv:2301.05109 TI - Counterfactual Explanations for Concepts in ELH 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 - 45244 T2 - arXiv:2305.13764 TI - Mitigating Label Noise through Data Ambiguation ER - TY - JOUR AB - This article presents the potential-dependent adsorption of two proteins, bovine serum albumin (BSA) and lysozyme (LYZ), on Ti6Al4V alloy at pH 7.4 and 37 °C. The adsorption process was studied on an electropolished alloy under cathodic and anodic overpotentials, compared to the open circuit potential (OCP). To analyze the adsorption process, various complementary interface analytical techniques were employed, including PM-IRRAS (polarization-modulation infrared reflection-absorption spectroscopy), AFM (atomic force microscopy), XPS (X-ray photoelectron spectroscopy), and E-QCM (electrochemical quartz crystal microbalance) measurements. The polarization experiments were conducted within a potential range where charging of the electric double layer dominates, and Faradaic currents can be disregarded. The findings highlight the significant influence of the interfacial charge distribution on the adsorption of BSA and LYZ onto the alloy surface. Furthermore, electrochemical analysis of the protein layers formed under applied overpotentials demonstrated improved corrosion protection properties. These studies provide valuable insights into protein adsorption on titanium alloys under physiological conditions, characterized by varying potentials of the passive alloy. AU - Duderija, Belma AU - González-Orive, Alejandro AU - Ebbert, Christoph AU - Neßlinger, Vanessa AU - Keller, Adrian AU - Grundmeier, Guido ID - 45828 IS - 13 JF - Molecules KW - Chemistry (miscellaneous) KW - Analytical Chemistry KW - Organic Chemistry KW - Physical and Theoretical Chemistry KW - Molecular Medicine KW - Drug Discovery KW - Pharmaceutical Science SN - 1420-3049 TI - Electrode Potential-Dependent Studies of Protein Adsorption on Ti6Al4V Alloy VL - 28 ER - TY - CHAP AU - Keller, Adrian AU - Grundmeier, Guido ID - 45829 SN - 9780124095472 T2 - Reference Module in Chemistry, Molecular Sciences and Chemical Engineering TI - High-speed AFM studies of macromolecular dynamics at solid/liquid interfaces ER - TY - CHAP AU - Kostan, Anastassija ID - 45833 SN - 9783828877368 T2 - Bedeutung und Implikationen epistemischer Ungerechtigkeit TI - Die epistemische Gewalt KI-basierter Gesichtserkennung. Wie ein codierter Blick neue Formen der technologisierten Subalternität erschafft ER - TY - THES AB - Reading between the lines has so far been reserved for humans. The present dissertation addresses this research gap using machine learning methods. Implicit expressions are not comprehensible by computers and cannot be localized in the text. However, many texts arise on interpersonal topics that, unlike commercial evaluation texts, often imply information only by means of longer phrases. Examples are the kindness and the attentiveness of a doctor, which are only paraphrased (“he didn’t even look me in the eye”). The analysis of such data, especially the identification and localization of implicit statements, is a research gap (1). This work uses so-called Aspect-based Sentiment Analysis as a method for this purpose. It remains open how the aspect categories to be extracted can be discovered and thematically delineated based on the data (2). Furthermore, it is not yet explored how a collection of tools should look like, with which implicit phrases can be identified and thus made explicit (3). Last, it is an open question how to correlate the identified phrases from the text data with other data, including the investigation of the relationship between quantitative scores (e.g., school grades) and the thematically related text (4). Based on these research gaps, the research question is posed as follows: Using text mining methods, how can implicit rating content be properly interpreted and thus made explicit before it is automatically categorized and quantified? The uniqueness of this dissertation is based on the automated recognition of implicit linguistic statements alongside explicit statements. These are identified in unstructured text data so that features expressed only in the text can later be compared across data sources, even though they were not included in rating categories such as stars or school grades. German-language physician ratings from websites in three countries serve as the sample domain. The solution approach consists of data creation, a pipeline for text processing and analyses based on this. In the data creation, aspect classes are identified and delineated across platforms and marked in text data. This results in six datasets with over 70,000 annotated sentences and detailed guidelines. The models that were created based on the training data extract and categorize the aspects. In addition, the sentiment polarity and the evaluation weight, i. e., the importance of each phrase, are determined. The models, which are combined in a pipeline, are used in a prototype in the form of a web application. The analyses built on the pipeline quantify the rating contents by linking the obtained information with further data, thus allowing new insights. As a result, a toolbox is provided to identify quantifiable rating content and categories using text mining for a sample domain. This is used to evaluate the approach, which in principle can also be adapted to any other domain. AU - Kersting, Joschka ID - 44323 TI - Identifizierung quantifizierbarer Bewertungsinhalte und -kategorien mittels Text Mining ER - TY - JOUR AB - The aim of the present study is to prove the construct validity of the German versions of the Feeling Scale (FS) and the Felt Arousal Scale (FAS) for a progressive muscle relaxation (PMR) exercise. A total of 228 sport science students conducted the PMR exercise for 45 min and completed the FS, the FAS, and the Self-Assessment Manikin (SAM) in a pre-test–post-test design. A significant decrease in arousal (t(227) = 8.296, p < 0.001) and a significant increase in pleasure (t(227) = 4.748, p < 0.001) were observed. For convergent validity, the correlations between the FS and the subscale SAM-P for the valence dimension (r = 0.67, p < 0.001) and between the FAS and the subscale SAM-A for the arousal dimension (r = 0.31, p < 0.001) were significant. For discriminant validity, the correlations between different constructs (FS and SAM-A, FAS and SAM-P) were not significant, whereas the discriminant analysis between the FS and the FAS revealed a negative significant correlation (r = −0.15, p < 0.001). Together, the pattern of results confirms the use of the German versions of the FS and the FAS to measure the affective response for a PMR exercise. AU - Thorenz, Kristin AU - Berwinkel, Andre AU - Weigelt, Matthias ID - 45857 IS - 7 JF - Behavioral Sciences KW - Behavioral Neuroscience KW - General Psychology KW - Genetics KW - Development KW - Ecology KW - Evolution KW - Behavior and Systematics SN - 2076-328X TI - A Validation Study for the German Versions of the Feeling Scale and the Felt Arousal Scale for a Progressive Muscle Relaxation Exercise VL - 13 ER - TY - JOUR AU - Thorenz, Kristin AU - Berwinkel, Andre AU - Weigelt, Matthias ID - 45856 IS - 06 JF - Psychology KW - General Earth and Planetary Sciences KW - General Environmental Science SN - 2152-7180 TI - A Validation Study of the German Versions of the Feeling Scale and the Felt Arousal Scale for a Passive Relaxation Technique (Autogenic Training) VL - 14 ER - TY - JOUR AU - Topalović, Elvira AU - Blachut, Alisa ID - 45861 JF - Der Deutschunterricht TI - Grammatische Modelle. Einführung in das Themenheft VL - 3 ER - TY - JOUR AU - Schlosser, Florian AU - Zysk, Sebastian AU - Walmsley, Timothy G. AU - Kong, Lana AU - Zühlsdorf, Benjamin AU - Meschede, Henning ID - 45867 JF - Energy Conversion and Management KW - Energy Engineering and Power Technology KW - Fuel Technology KW - Nuclear Energy and Engineering KW - Renewable Energy KW - Sustainability and the Environment SN - 0196-8904 TI - Break-even of high-temperature heat pump integration for milk spray drying VL - 291 ER - TY - JOUR AU - Wolf, Isabel AU - Holzapfel, Peter K.R. AU - Meschede, Henning AU - Finkbeiner, Matthias ID - 45865 JF - Applied Energy KW - Management KW - Monitoring KW - Policy and Law KW - Mechanical Engineering KW - General Energy KW - Building and Construction SN - 0306-2619 TI - On the potential of temporally resolved GHG emission factors for load shifting: A case study on electrified steam generation VL - 348 ER - TY - JOUR AB - Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their peculiar optical features. PVVBs are typically generated through the superposition of perfect vortex beams, which suffer from the limited number of topological charges (TCs). Furthermore, dynamic control of PVVBs is desirable and has not been reported. We propose and experimentally demonstrate hybrid grafted perfect vector vortex beams (GPVVBs) and their dynamic control. Hybrid GPVVBs are generated through the superposition of grafted perfect vortex beams with a multifunctional metasurface. The generated hybrid GPVVBs possess spatially variant rates of polarization change due to the involvement of more TCs. Each hybrid GPVVB includes different GPVVBs in the same beam, adding more design flexibility. Moreover, these beams are dynamically controlled with a rotating half waveplate. The generated dynamic GPVVBs may find applications in the fields where dynamic control is in high demand, including optical encryption, dense data communication, and multiple particle manipulation. AU - Ahmed, Hammad AU - Ansari, Muhammad Afnan AU - Li, Yan AU - Zentgraf, Thomas AU - Mehmood, Muhammad Qasim AU - Chen, Xianzhong ID - 45868 IS - 1 JF - Nature Communications KW - General Physics and Astronomy KW - General Biochemistry KW - Genetics and Molecular Biology KW - General Chemistry KW - Multidisciplinary SN - 2041-1723 TI - Dynamic control of hybrid grafted perfect vector vortex beams VL - 14 ER - TY - JOUR AB - Interference between single photons is key for many quantum optics experiments and applications in quantum technologies, such as quantum communication or computation. It is advantageous to operate the systems at telecommunication wavelengths and to integrate the setups for these applications in order to improve stability, compactness and scalability. A new promising material platform for integrated quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel (HOM) interference between telecom photons from an engineered parametric down-conversion source in an LNOI directional coupler. The coupler has been designed and fabricated in house and provides close to perfect balanced beam splitting. We obtain a raw HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and in good agreement with off-chip measurements. This lays the foundation for more sophisticated quantum experiments in LNOI. AU - Babel, Silia AU - Bollmers, Laura AU - Massaro, Marcello AU - Luo, Kai Hong AU - Stefszky, Michael AU - Pegoraro, Federico AU - Held, Philip AU - Herrmann, Harald AU - Eigner, Christof AU - Brecht, Benjamin AU - Padberg, Laura AU - Silberhorn, Christine ID - 45850 IS - 14 JF - Optics Express KW - Atomic and Molecular Physics KW - and Optics SN - 1094-4087 TI - Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler VL - 31 ER - TY - JOUR AB - Die mit dem Forschenden Lernen verbundenen Verständnisse werden in der Literatur als vielfältig bewertet und die damit einhergehenden Auswirkungen als problematisch für Erforschung, hochschuldidaktische Umsetzung sowie Wirkungsannahmen gesehen (Huber & Reinmann, 2019). Vornehmlich in der Lehrkräftebildung entwickelte sich ein eigener Diskurs. Im vorliegenden Aufsatz wird dafür plädiert, die immer wieder benannte spezifische, berufsperspektivische Zielsetzung des Forschenden Lernens in der Lehrkräftebildung stärker theoretisch auszuformulieren, um die Verständnisklärung von Forschendem Lernen vor diesem Hintergrund vorantreiben zu können. Damit einhergehend werden aktuelle Forschungsbefunde und -erkenntnisse des Forschenden Lernens im Praxissemester in Deutschland berichtet und diskutiert. Es werden mögliche Ansatzpunkte für die theoretische Weiterentwicklung und damit verbundene Implikationen für die Praxis aufgezeigt. AU - Bloh, Bea AU - Homt, Martina ID - 45870 IS - 1 JF - PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- Und Professionsentwicklung. (PFLB) TI - Forschungsperspektiven und -befunde zum Forschenden Lernen im Praxissemester. Plädoyer für eine Zielklärung VL - 5 ER - TY - JOUR AU - Trier, Matthias AU - Kundisch, Dennis AU - Beverungen, Daniel AU - Müller, Oliver AU - Schryen, Guido AU - Mirbabaie, Milad AU - Trang, Simon ID - 45872 JF - Business & Information Systems Engineering KW - Information Systems SN - 2363-7005 TI - Digital Responsibility ER - TY - JOUR AB - BackgroundThe COVID-19 pandemic has led to a deepening of existing inequalities and a rollback of achievements made in gender equality. Women in Global Health (WGH) is a global movement that aims to achieve gender equality in health and increase female leadership in global health. Here, the aim was to understand how the pandemic affects the private and professional lives of women working in global health in different European countries. Suggestions for future pandemic preparedness including how gender perspectives should be integrated into pandemic preparedness and how a women's network such as WGH helped them to overcome the impact of the pandemic were explored.MethodsQualitative semi-structured interviews were conducted in September 2020 with a sample size of nine highly educated women with a mean age of 42.1 years from the different WGH European chapters. The participants were informed of the study and were formally asked for their consent. The interviews were held in English via an online videoconference platform and lasted 20–25 min each. The interviews were audio recorded and transcribed verbatim. Thematic analysis was conducted according to Mayring Qualitative Content Analysis using MAXQDA.ResultsThe pandemic has both positive and negative effects on the professional and private lives of women. It led to an increased workload and stress as well as pressure to publish on COVID-19-related themes. Increased childcare and household responsibilities represented a double burden. The available space was limited if other family members were also working from home. Positive aspects included more time for family or partners and reduced travel. The participants report on perceived gender differences in the experience of the pandemic. International cooperation is considered to be a key factor for future pandemic preparedness. Being part of a women's network such as WGH was perceived as being very supportive in difficult situations during the pandemic.ConclusionThis study provides unique insights into the experiences of women working in global health in different European countries. The COVID-19 pandemic influences their professional and private lives. Perceived gender differences are reported and suggest the need for integrating gender perspectives in pandemic preparedness. Networks for women, such as WGH, can facilitate the exchange of information in crises and provide women with professional and personal support. AU - Hoffmann, Christina AU - Schneider, Tamara AU - Wannous, Chadia AU - Nyberger, Karolina AU - Haavardsson, Ingeborg AU - Gilmore, Brynne AU - Quigley, Paula AU - Winkler, Andrea S. AU - Ludwig, Sabine ID - 42235 JF - Frontiers in Global Women's Health KW - Industrial and Manufacturing Engineering KW - Environmental Engineering SN - 2673-5059 TI - Impact of COVID-19 on the private and professional lives of highly educated women working in global health in Europe—A qualitative study VL - 4 ER - TY - CHAP AU - Götte, Thorsten AU - Knollmann, Till AU - Meyer auf der Heide, Friedhelm AU - Scheideler, Christian AU - Werthmann, Julian ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45875 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Capabilities and Limitations of Local Strategies in Dynamic Networks VL - 412 ER - TY - CONF AU - Brunner-Schwer, Christian AU - Biegler, Max AU - Rethmeier, Michael AU - Schmolke, Tobias AU - Meschut, Gerson AU - Spohr, Sebastian AU - Eckstein, Lutz ID - 45877 TI - A life cycle assessment of joining processes in the automotive industry, illustrated by the example of an EV battery case ER - TY - CHAP AU - Karl, Holger AU - Maack, Marten AU - Meyer auf der Heide, Friedhelm AU - Pukrop, Simon AU - Redder, Adrian ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45895 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - On-The-Fly Compute Centers II: Execution of Composed Services in Configurable Compute Centers VL - 412 ER - TY - CHAP AU - Blömer, Johannes AU - Bobolz, Jan AU - Eidens, Fabian AU - Jager, Tibor AU - Kramer, Paul ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45901 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Practical Cryptograhic Techniques for Secure and Privacy-Preserving Customer Loyalty Systems VL - 412 ER - TY - CHAP AU - Boschmann, Alexander AU - Clausing, Lennart AU - Jentzsch, Felix AU - Ghasemzadeh Mohammadi, Hassan AU - Platzner, Marco ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45899 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Flexible Industrial Analytics on Reconfigurable Systems-On-Chip VL - 412 ER - TY - CHAP AU - Wehrheim, Heike AU - Platzner, Marco AU - Bodden, Eric AU - Schubert, Philipp AU - Pauck, Felix AU - Jakobs, Marie-Christine ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45888 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Verifying Software and Reconfigurable Hardware Services VL - 412 ER - TY - CHAP AU - Gottschalk, Sebastian AU - Vorbohle, Christian AU - Kundisch, Dennis AU - Engels, Gregor AU - Wünderlich, Nacy V. ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45897 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Architectural Management of OTF Computing Markets VL - 412 ER - TY - CHAP AU - Blömer, Johannes AU - Eidens, Fabian AU - Jager, Tibor AU - Niehues, David AU - Scheideler, Christian ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45891 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Robustness and Security VL - 412 ER - TY - CHAP AU - Bäumer, Frederik Simon AU - Chen, Wei-Fan AU - Geierhos, Michaela AU - Kersting, Joschka AU - Wachsmuth, Henning ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45882 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Dialogue-based Requirement Compensation and Style-adjusted Data-to-text Generation VL - 412 ER - TY - CHAP AU - Hanselle, Jonas Manuel AU - Hüllermeier, Eyke AU - Mohr, Felix AU - Ngonga Ngomo, Axel-Cyrille AU - Sherif, Mohamed AU - Tornede, Alexander AU - Wever, Marcel Dominik ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45884 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Configuration and Evaluation VL - 412 ER - TY - CHAP AU - Haake, Claus-Jochen AU - Hehenkamp, Burkhard AU - Polevoy, Gleb ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45878 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - The Market for Services: Incentives, Algorithms, Implementation VL - 412 ER - TY - CHAP AU - Wehrheim, Heike AU - Hüllermeier, Eyke AU - Becker, Steffen AU - Becker, Matthias AU - Richter, Cedric AU - Sharma, Arnab ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45886 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Composition Analysis in Unknown Contexts VL - 412 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 - 45911 T2 - arXiv:2305.13764 TI - Mitigating Label Noise through Data Ambiguation ER - TY - GEN AU - Raeisi Nafchi, Masood ID - 45917 TI - Reconfigurable Random Forest Implementation on FPGA ER - TY - GEN AU - Yadalam Murali Kumar, Nihal ID - 45916 TI - Data Analytics for Predictive Maintenance of Time Series Data ER - TY - JOUR AB - This paper aims to present an approach for the planning of carbon low heat supply in a future district heating system based on open data for German cities with existing district heating networks. One focus is on the integration of industrial waste heat and the uncertainty of future waste heat sources as well as restrictions on the use of biomass. For that purpose, knowledge about the energy demand is necessary. In a first step it is shown how the demand around a heating network is estimated with spatial data and a load profile is generated. Local available heat sources are examined according to their suitability and their kind of integration in the heating network. As heat production from different units are optimised, the development of a simulation model will be presented. The simulation is based on the optimisation of the operational costs of the used technologies for heating supply. Different scenarios covering various technologies and economic assumptions are applied. The results show the levelized costs of heating as well as the ecological performance. A sensitivity analysis shows the importance of uncertainties for the economic assumptions. The results showing levelized costs of heating as well as the ecological performance underlining the advantage of excess heat integration. AU - Divkovic, Denis AU - Knorr, Lukas AU - Meschede, Henning ID - 45931 JF - International Journal of Sustainable Energy Planning and Management KW - Energy Engineering and Power Technology KW - Renewable Energy KW - Sustainability and the Environment KW - Geography KW - Planning and Development SN - 2246-2929 TI - Design approach to extend and decarbonise existing district heating systems - case study for German cities VL - 38 ER - TY - JOUR AB - Abstract An error estimate for a canonical discretization of the harmonic map heat flow into spheres is derived. The numerical scheme uses standard finite elements with a nodal treatment of linearized unit-length constraints. The analysis is based on elementary approximation results and only uses the discrete weak formulation. AU - Bartels, Sören AU - Kovács, Balázs AU - Wang, Zhangxian ID - 45971 JF - IMA Journal of Numerical Analysis KW - Applied Mathematics KW - Computational Mathematics KW - General Mathematics SN - 0272-4979 TI - Error analysis for the numerical approximation of the harmonic map heat flow with nodal constraints ER - TY - JOUR AB - Jede Schwangerschaft bringt physische, psychische und soziale Veränderungen mit sich. Diese können zu Stress und ambivalenten Gefühlen bei Schwangeren führen, die einen starken Einfluss auf das Wohlbefinden und die Gesundheit von Mutter und Kind haben. Zur Förderung eines komplikationslosen Verlaufs der Schwangerschaft wird in der Forschungsliteratur die Stärkung der gesundheitlichen Ressourcen gefordert. Das Zürcher Ressourcen Modell (ZRM) ist ein ressourcenaktivierendes Selbstmanagementtraining, welches nach aktuellen Studienergebnissen die Gefühlsregulierung unterstützen und Stress reduzieren kann. Ziel dieser Studie war die erstmalige Wirksamkeitsprüfung des ZRM in der Schwangerschaft. Angenommen wurde, dass durch die Aktivierung der persönlichen Ressourcen der Schwangeren das Stresserleben reduziert und das subjektive Wohlbefinden gesteigert werden kann. Die Konstrukte „Stress“ und „Wohlbefinden“ wurden anhand von fünf psychometrischen Parametern operationalisiert. Durchgeführt wurde eine quasiexperimentelle unkontrollierte 6‑stündige Online-Interventionsstudie mit dem ZRM im Januar 2021 an N = 32 Schwangeren, basierend auf einem Prä-Post-Follow-up-Design. Zur Überprüfung der gebildeten Hypothesen wurden einfaktorielle Varianzanalysen (rmANOVAs) durchgeführt. Die 1-faktoriellen rmANOVAs ergaben, dass die ZRM-Intervention das Stresserleben allgemein und schwangerschaftsspezifisch sowie das Angsterleben signifikant senken konnte. Handlungsorientierung nach Misserfolg und emotionales Wohlbefinden konnten signifikant gesteigert werden. Hinsichtlich der subjektiven Vitalität ließ sich lediglich deskriptiv eine Steigerung der Werte verzeichnen. Die ZRM-Intervention erwies sich als wirksame Methode zur Optimierung der Stressbewältigung und Steigerung des Wohlbefindens während der Schwangerschaft. Es kann zielführend sein, das ZRM-Training als Ergänzung zur üblichen Geburtsvorbereitung einzusetzen. Zukünftige Forschungsarbeiten sollten v. a. die Übertragbarkeit der Ergebnisse unter Einbindung einer Kontrollgruppe sicherstellen. AU - Schneider, Tamara AU - Weber, Julia AU - Bauer, Nicola H. ID - 45981 JF - Prävention und Gesundheitsförderung KW - Public Health KW - Environmental and Occupational Health SN - 1861-6755 TI - „Löwenstark in der Schwangerschaft!“ Ressourcenaktivierung und Stressreduktion mit dem Zürcher Ressourcen Modell (ZRM®) – eine unkontrollierte Interventionsstudie ER - TY - CONF AB - Variational Quantum Algorithms (VQAs), such as the Quantum Approximate Optimization Algorithm (QAOA) of [Farhi, Goldstone, Gutmann, 2014], have seen intense study towards near-term applications on quantum hardware. A crucial parameter for VQAs is the depth of the variational ansatz used - the smaller the depth, the more amenable the ansatz is to near-term quantum hardware in that it gives the circuit a chance to be fully executed before the system decoheres. This potential for depth reduction has made VQAs a staple of Noisy Intermediate-Scale Quantum (NISQ)-era research. In this work, we show that approximating the optimal depth for a given VQA ansatz is intractable. Formally, we show that for any constant $\epsilon>0$, it is QCMA-hard to approximate the optimal depth of a VQA ansatz within multiplicative factor $N^{1-\epsilon}$, for $N$ denoting the encoding size of the VQA instance. (Here, Quantum Classical Merlin-Arthur (QCMA) is a quantum generalization of NP.) We then show that this hardness persists even in the "simpler" setting of QAOAs. To our knowledge, this yields the first natural QCMA-hard-to-approximate problems. To achieve these results, we bypass the need for a PCP theorem for QCMA by appealing to the disperser-based NP-hardness of approximation construction of [Umans, FOCS 1999]. AU - Bittel, Lennart AU - Gharibian, Sevag AU - Kliesch, Martin ID - 34138 IS - 34 T2 - Proceedings of the 38th Computational Complexity Conference (CCC) TI - The Optimal Depth of Variational Quantum Algorithms Is QCMA-Hard to Approximate VL - 264 ER - TY - CHAP AU - Müller, Inez ED - Böker, Ines ID - 45990 SN - 978-3-8260-7919-1 T2 - Interkulturelle Konstellationen in Literaturwissenschaft und Literaturdidaktik. Festschrift für Michael Hofmann TI - Zur Darstellung der Afrikanischen Europäerin in Geschichte und Gegenwart - Sharon Dodua Otoos Roman 'Adas Raum' ER - TY - CHAP AU - Elrich, Alina AU - Kaimann, Daniel AU - Fahr, René AU - Kundisch, Dennis AU - Mir Djawadi, Behnud AU - Müller, Michelle AU - Poniatowski, Martin AU - Schäfers, Sabrina AU - Frick, Bernd ED - Haake, Claus-Jochen ED - Meyer auf der Heide, Friedhelm ED - Platzner, Marco ED - Wachsmuth, Henning ED - Wehrheim, Heike ID - 45880 T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets TI - Empirical Analysis in Markets for OTF Services VL - 412 ER - TY - JOUR AU - Su, Ran AU - Zhang, Jiahui AU - Wong, Vienna AU - Zhang, Dawei AU - Yang, Yong AU - Luo, Zheng‐Dong AU - Wang, Xiaojing AU - Wen, Hui AU - Liu, Yang AU - Seidel, Jan AU - Yang, Xiaolong AU - Pan, Ying AU - Li, Fa‐tang ID - 46018 JF - Advanced Materials KW - Mechanical Engineering KW - Mechanics of Materials KW - General Materials Science SN - 0935-9648 TI - Engineering Sub‐Nanometer Hafnia‐Based Ferroelectric to Break The Scaling Relation for High‐Efficiency Piezocatalytic Water Splitting ER - TY - BOOK AU - Schreckenberg, Carolin ID - 46031 SN - 978-3-8288-4924-2 TI - Die junge Käthe Kollwitz in ihrer künstlerischen Findungsphase VL - KONTEXT Kunst – Vermittlung – Kulturelle Bildung ER - TY - JOUR AB - Intending to counteract Klein’s second discontinuity in teacher education, we explored and applied the innovation of “interface ePortfolio” in the context of a geometry course for preservice teachers (PSTs). The tool offers the possibility of implementing the design principle of profession orientation. In the article, we theoretically clarify what we understand by this principle and locate our innovative concept against this theoretical background. We empirically investigate the extent to which counteraction against the second discontinuity is successful by analyzing reflection texts created in the interface ePortfolio, focusing on PSTs’ perspectives. Our qualitative content analysis shows that most of them perceive the innovation as helpful in the intended sense and indicates that the course concept, in general, and the interface ePortfolio, in particular, have helped establish relevant links between the course content and their later work as teachers. AU - Hoffmann, Max AU - Biehler, Rolf ID - 45786 JF - ZDM – Mathematics Education KW - General Mathematics KW - Education SN - 1863-9690 TI - Implementing profession orientation as a design principle for overcoming Klein’s second discontinuity – preservice teacher’s perspectives on interface activities in the context of a geometry course ER - TY - JOUR AU - Fochmann, Martin AU - Heinemann-Heile, Vanessa AU - Huber, Hans-Peter AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 42897 IS - 2 JF - Steuer und Wirtschaft TI - Zusatzkosten der Besteuerung – Eine Analyse des steuerlichen Verwaltungsaufwands und der subjektiv wahrgenommenen Steuerbelastung VL - 100 ER - TY - JOUR AU - Dieter, Peter AU - Stumpe, Miriam AU - Ulmer, Marlin Wolf AU - Schryen, Guido ID - 45816 JF - Transportation Research Part D TI - Anticipatory Assignment of Passengers to Meeting Points for Taxi-Ridesharing VL - 121 ER - TY - JOUR AB - DNA origami nanostructures have emerged as functional materials for applications in various areas of science and technology. In particular, the transfer of the DNA origami shape into inorganic materials using... AU - Pothineni, Bhanu Kiran AU - Grundmeier, Guido AU - Keller, Adrian ID - 46061 JF - Nanoscale KW - General Materials Science SN - 2040-3364 TI - Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces ER - TY - THES AU - Pukrop, Simon ID - 45781 TI - On Cloud Assisted, Restricted, and Reosurce Constrained Scheduling ER - TY - GEN AU - Schneider, Fabian ID - 46053 TI - Utilizing Redundancy in Distributed Heterogeneous Storage ER - TY - CHAP AU - Schwabl, Franziska AU - Daniel-Söltenfuß, Desiree ID - 45918 SN - 2512-1170 T2 - Organisation zwischen Theorie und Praxis TI - Gelingensbedingungen gestaltungsorientierter Schulentwicklung ER - TY - GEN AU - Raeisi Nafchi, Masood ID - 46075 TI - Reconfigurable Random Forest Implementation on FPGA ER - TY - CHAP AU - Harnack, Maria ED - Drascek, Daniel ED - Groschwitz , Helmut ED - Wolf, Gabriele ID - 41849 T2 - Kulturerbe als kulturelle Praxis – Kulturerbe in der Beratungspraxis TI - Potenziale der Kulturerbe-Konvention von 2003. Beispiele aus der Beratungspraxis der Landesstelle Immaterielles Kulturerbe NRW ER - TY - CHAP AU - Mir Djawadi, Behnud AU - Plaß, Sabrina AU - Schäfers, Sabrina ED - Gabbioneta, Claudia ED - Clemente, Marco ED - Greenwood, Royston ID - 46088 SN - 0733-558X T2 - Organizational Wrongdoing as the “Foundational” Grand Challenge: Consequences and Impact TI - Peers: Powerful or Negligible? A Systematic Review on Peer Factors and Internal Whistleblowing VL - 85 ER - TY - GEN AU - Ranade, Amruta ID - 46087 TI - Graph Neural Network-based Anomaly Detection in Smart Grid Energy Consumption ER -