TY - CONF AU - Ozuna, Edna AU - Steinhoff, Lena ID - 50977 TI - Face-to-Face Interactions in Peer-to-Peer Sharing Economy Services: An Effective Barrier to Customer Misbehavior? ER - TY - JOUR AU - Junker, Annika AU - Pape, Keno Egon Friedrich AU - Timmermann, Julia AU - Trächtler, Ansgar ID - 50070 IS - 3 JF - IFAC-PapersOnLine KW - General Medicine SN - 2405-8963 TI - Adaptive Koopman-Based Models for Holistic Controller and Observer Design VL - 56 ER - TY - GEN AU - Greil, Stefan AU - Kaluza-Thiesen, Eleonore AU - Schulz, Kim Alina AU - Sureth-Sloane, Caren ID - 48414 TI - Umfrage: Tax Compliance und Verrechnungspreise ER - TY - JOUR AU - Maiterth, Ralf AU - Sureth-Sloane, Caren AU - Dyck, Daniel AU - Heinemann-Heile, Vanessa ID - 49548 IS - online first JF - Schmalenbach IMPULSE TI - GBP-Monitor Q3/2023: Das Wachstumschancengesetz – ein Investitionsimpuls? VL - 3 ER - TY - GEN AU - Heinemann-Heile, Vanessa AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 49295 TI - Umfrage: Bewertung Investitionsfördernder Maßnahmen durch Unternehmen aus Handel, Dienstleistung und Industrie ER - TY - GEN AU - Heinemann-Heile, Vanessa AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 49293 TI - Umfrage: Beurteilung Investitionsfördernder Maßnahmen durch Unternehmen im Handwerk ER - TY - JOUR AB - Ernährungsbildung ist derzeit nur unzureichend in der Primarstufe verankert, sie sollte es jedoch sein, damit Kinder Kompetenzen für die Alltagsbewältigung im Handlungsfeld Ernährung und somit zur Teilhabe an der Gesellschaft anbahnen können. Essen und Ernährung bieten sich als perspektivenvernetzender Themenbereich für den Sachunterricht an. AU - Bigga, Regine ID - 51165 IS - 2 JF - HiBiFo – Haushalt in Bildung & Forschung KW - Ernährungsbildung KW - Sachunterricht KW - Curriculumentwicklung KW - Esskultur SN - 2193-8806 TI - Essen und Ernährung im Sachunterricht VL - 12 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 - 46023 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 - JOUR AU - Duderija, B. AU - Sahin, F. AU - Meinderink, D. AU - Calderón-Gómez, J.C. AU - Schmidt, H.C. AU - Homberg, W. AU - Grundmeier, G. AU - González-Orive, A. ID - 51167 JF - Journal of Advanced Joining Processes KW - Mechanical Engineering KW - Mechanics of Materials KW - Engineering (miscellaneous) KW - Chemical Engineering (miscellaneous) SN - 2666-3309 TI - Electropolymerization of acrylic acid on steel for enhanced joining by plastic deformation VL - 9 ER - TY - CHAP AU - Meyer-Hamme, Johannes AU - Fastlabend-Vargas, Daniel ED - Waldis, Monika ED - Nitsche, Martin ID - 43136 T2 - Geschichtsdidaktisch intervenieren TI - „Fotos, die jede*r kennt?“ Eine empirische Untersuchung historischer Kenntnisforschung anhand von Bildikonen bei Studierenden des Lehramts Geschichte ER - TY - CHAP AU - Friedberger, Vanessa AU - Kaiser, Michaela AU - Kottmann, Brigitte AU - Schwermann, Anna ED - Fischer, Christian ED - Fischer-Ontrup , Christiane ED - Käpnick, Friedhelm ED - Neuber, Nils ED - Reintjes, Christian ID - 50734 T2 - Potenziale erkennen - Talente entwickeln - Bildung nachhaltig gestalten. Beiträge aus der Begabungsforschung TI - Fallbezogene Reflexionen von Haltung und Professionalisierung pädagogischer Akteur*innen im Kontext begabungs- und leistungsfördernder Schulentwicklung ER - TY - CONF AB - Abstract. Force-displacement measurements and macrosections are commonly used methods to validate numerical models of clinching processes. However, these ex-situ methods often lead to springback of elastic deformations and crack-closing after unloading. In contrast, the in-situ computed tomography (CT) can provide three-dimensional images of the clinching point under loading conditions. So far, the quantity of elastic springback that causes measuring deviations between in- and ex-situ measurements is not determined. In this paper, a method is described to quantitatively compare the results of in-situ CT, ex-situ CT and CT scans of cut specimens, which are prepared for macrosectioning, among each other. The method is applied to a single-lap shear test of two clinched aluminum sheets. Here, the test is conducted to specific process steps, then the specimen is CT scanned in-situ (during loading) and ex-situ (after unloading). Subsequently, the specimens are cut for macrosectioning and CT scanned. Finally, the outer contours and the interfaces of cross section images are determined by digital image analysis and the deviations over the clinching point between ex- and in-situ methods are calculated. AU - Köhler, Daniel AU - Kupfer, Robert AU - Troschitz, Juliane AU - Gude, Maik ID - 51190 SN - 2474-395X T2 - Materials Research Proceedings TI - Comparison of ex- and in-situ investigations of clinched single-lap shear specimens ER - TY - CHAP AU - Köhler, Daniel AU - Stephan, Richard AU - Kupfer, Robert AU - Troschitz, Juliane AU - Brosius, Alexander AU - Gude, Maik ID - 51194 SN - 2194-0525 T2 - Lecture Notes in Production Engineering TI - In-situ Computed Tomography and Transient Dynamic Analysis of a Single-Lap Shear Test with a Composite-Metal Clinch Point ER - TY - JOUR AB - Given a geometrically finite hyperbolic surface of infinite volume it is a classical result of Patterson that the positive Laplace-Beltrami operator has no $L^2$-eigenvalues $\geq 1/4$. In this article we prove a generalization of this result for the joint $L^2$-eigenvalues of the algebra of commuting differential operators on Riemannian locally symmetric spaces $\Gamma\backslash G/K$ of higher rank. We derive dynamical assumptions on the $\Gamma$-action on the geodesic and the Satake compactifications which imply the absence of the corresponding principal eigenvalues. A large class of examples fulfilling these assumptions are the non-compact quotients by Anosov subgroups. AU - Weich, Tobias AU - Wolf, Lasse Lennart ID - 31189 JF - Communications in Mathematical Physics TI - Absence of principal eigenvalues for higher rank locally symmetric spaces VL - 403 ER - TY - CHAP AU - Meyer-Hamme, Johannes ED - Fenn, Monika ED - Zülsdorf-Kersting, Meik ID - 41130 T2 - Geschichtsdidaktik TI - Geschichtstheorie im Geschichtsunterricht ER - TY - CONF AB - Polymer composites represent the industry standard in injection molding for the production of plastic components with increased requirements in terms of heat resistance and stiffness. In the field of laser sintering (LS), these materials are less common so far. In order to extend the available material variety for the LS process, new ceramic-filled Polyamide 613 powders are investigated within the scope of this work. Here, the resulting properties from two different powder production methods are compared. One filled powder is produced by dry blending and the other powder with the same filler and filling ratio is produced by encapsulating the filler particles inside the polymer particles within the dissolution-precipitation process. It was found that encapsulating the filler particles can provide certain benefits for the processability, for example an improved powder flowability or better filler dispersion. However, encapsulating the filler also alters the thermal properties of the precipitated powder. AU - Kletetzka, Ivo AU - Neitzel, Fabian AU - Schmid, Hans-Joachim ED - Beaman, Joseph ID - 51218 KW - Additive Manufacturing KW - Laser Sintering KW - Filled Materials KW - Composites KW - Polyamide 613 T2 - Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium TI - Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering ER - TY - JOUR AB - Dynamics-induced interchain charge transfer in a polymer aggregate in stack configuration can be understood by single-oligomer polaron energy. AU - Bauch, Fabian AU - Dong, Chuan-Ding AU - Schumacher, Stefan ID - 51093 IS - 38 JF - Journal of Materials Chemistry C KW - Materials Chemistry KW - General Chemistry SN - 2050-7526 TI - Dynamics-induced charge transfer in semiconducting conjugated polymers VL - 11 ER - TY - JOUR AB - Cooperative Driving requires ultra-reliable communications, and it is now clear that no single technology will ever be able to satisfy such stringent requirements, if only because active jamming can kill (almost) any wireless technology. Cooperative driving with multiple communication technologies which complement each other opens new spaces for research and development, but also poses several challenges. The work we present tackles the fallback and recovery mechanisms that the longitudinal controlling system of a platoon of vehicles can implement as a distributed system with multiple communication interfaces. We present a protocol and procedure to correctly compute the safe transition between different controlling algorithms, down to autonomous (or manual) driving when no communication is possible. To empower the study, we also develop a new version of PLEXE, which is an integral part of this contribution as the only Open Source, free simulation tool that enables the study of such systems with a modular approach, and that we deem offers the community the possibility of boosting research in this field. The results we present demonstrate the feasibility of safe fallback, but also highlight that such complex systems require careful design choices, as naïve approaches can lead to instabilities or even collisions, and that such design can only be done with appropriate in-silico experiments. AU - Segata, Michele AU - Lo Cigno, Renato AU - Hardes, Tobias AU - Heinovski, Julian AU - Schettler, Max AU - Bloessl, Bastian AU - Sommer, Christoph AU - Dressler, Falko ID - 51266 IS - 8 JF - IEEE Transactions on Mobile Computing SN - 1536-1233 TI - Multi-Technology Cooperative Driving: An Analysis Based on PLEXE VL - 22 ER - TY - CONF AB - Platooning is a promising application in the field of vehicular networks. It has the potential to improve traffic flow, but also road safety. However, unreliable communication has strong negative effects on platoon stability and, thus, safety on roads. To improve reliability, in this work, we propose using multi-hop communication for platooning using the Decode and Forward (DF) Full-Duplex Relaying (FDR) scheme together with beamforming. We use computer simulations to demonstrate that FDR latency has no observable negative effect on string stability or safety even while performing an emergency brake. We further show that this combined approach reaches a constant Packet Delivery Ratio (PDR) of 100 % even in situations with high interference and/or congestion, where traditional approaches fail. AU - Hardes, Tobias AU - Klingler, Florian AU - Sommer, Christoph ID - 51264 T2 - IEEE Wireless Communications and Networking Conference 2023 (WCNC 2023) TI - Improving Platooning Safety with Full Duplex Relaying and Beamforming ER - TY - JOUR AB - We study the suitability of Unmanned Aerial Vehicles (UAVs) as purely opportunistic airborne virtual network infrastructure to support urban wireless networks, specifically in two Vehicle-to-Everything (V2X) use cases: First, UAVs being used as relays for cooperative awareness applications; second, UAVs being used to coordinate channel access for platooning in urban areas. We do not require that these UAVs alter trajectory nor speed from those of their random, unrelated primary missions, so that these additional tasks can be executed with close-to-zero impact on the execution of their primary missions. Based on extensive computer simulations we show that, within a wide band of acceptable speeds, flight routes (up to a standard deviation of 300 m from the optimum) as well as altitudes, opportunistic relaying of transmissions via UAVs can yield a benefit to system performance that is on the same order of magnitude as that of optimally deployed UAVs. We further show that an opportunistic channel access control can reduce the total number of packet collisions by approx. 86 % compared to a scenario without any UAVs. Moreover, much of the reduction in impact due to suboptimal missions can be recovered simply by moderately increasing the number of UAVs. AU - Hardes, Tobias AU - Sommer, Christoph ID - 51267 JF - Elsevier Computer Communications SN - 0140-3664 TI - Opportunistic Airborne Virtual Network Infrastructure for Urban Wireless Networks ER - TY - CONF AB - Many exciting future research topics in the field of Cooperative Autonomous Vehicles (CAVs) require the simulation of both connectivity and automation components. However, existing simulation tools focus on only one of these two aspects while making idealistic assumptions about the other. In this work, we motivate the use of established libraries such as gRPC to couple existing independent simulation tools tailored to either connectivity or automation, and demonstrate the feasibility of such an approach. We also describe an Open Source reference implementation coupling CARLA and Veins. AU - Hardes, Tobias AU - Turcanu, Ion AU - Sommer, Christoph ID - 51265 SN - 2157-9865 T2 - 14th IEEE Vehicular Networking Conference (VNC 2023) TI - Poster: A Case for Heterogenous Co-Simulation of Cooperative and Autonomous Driving ER - TY - CONF AB - As technology advances, Unmanned Aerial Vehicles ( UAVs) have emerged as an innovative solution to a variety of problems in many fields. Automated control of UAVs is most common in large area operations, but they may also increase the versatility of smart home compositions by acting as a physical helper. For example, a voice- controlled UAV could act as an intelligent aerial assistant that can be seamlessly integrated into smart home systems. In this paper, we present a novel Augmented Reality (AR )-based UAV control that provides high-level control over a UAV by automating common UAV missions. In our work, we enable users to operate a small UAV hands-free using only a small set of voice commands. To help users identify the targets, and to understand the UAV ’s intentions, targets within the user’s field of vision are highlighted in an AR interface. We evaluate our approach in a user study (n=26) regarding usability, physical and mental demand, as well as a focus on the users’ preferences. Our study showed that the use of the proposed control was not only accepted, but some users stated that they would use such a system at home to help with some tasks at home AU - Helmert, Robin AU - Hardes, Tobias AU - Yigitbas, Enes ID - 47049 T2 - Proceedings of the ACM Symposium on Spatial User Interaction (SUI 2023) TI - Design and Evaluation of an AR Voice-based Indoor UAV Assistant for Smart Home Scenarios ER - TY - CONF AU - Schubatzky, Thomas AU - Burde, Jan-Philipp AU - Große-Heilmann, Rike Isabel AU - Riese, Josef AU - Weiler, David ED - van Vorst, Helena ID - 45564 T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Aachen 2022 TI - Entwicklungsprädiktoren fachdidaktischen Wissens zu digitalen Medien ER - TY - CONF AU - Weiler, David AU - Burde, Jan-Philipp AU - Große-Heilmann, Rike Isabel AU - Lachner, Andreas AU - Riese, Josef AU - Schubatzky, Thomas ED - van Vorst, Helena ID - 45568 T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Aachen 2022 TI - Erste Ergebnisse eines Seminars zur Förderung digitaler Kompetenzen ER - TY - THES AB - High-quality teacher education is the basis for high competences of future teachers. To prepare them adequately for the demands of their future teaching profession, it is essential to know (i) which subject-specific competences and skills they need and (ii) how these can be acquired in teacher education. However, empirical findings on necessary competences as well as on the design of teacher training courses are scarcely available on the subject of technology, since mainly general, normative recommendations on potential study contents exist. To fill this gap, this work focuses on the investigation of necessary practical competences of prospective technology teachers. The acquisition of such practical competences and skills is of great importance for the school subject of technology when, for example, machines are operated, tools are used, or objects are designed and manufactured. However, there is a lack of a differentiated description of the practical requirements for technology teachers and the teaching-learning processes required for this in the teacher training. The aim of this work is therefore the theory- and empirically-guided development and evaluation of a practical demand-oriented course for the technology teacher training programme at RWTH Aachen University to promote subject-specific practical competences. The development was structured as an iterative process by the Model of Educational Reconstruction (MER), according to which three major aspects were investigated and connected. (1) In a first step, the competences to be acquired were described and structured, taking normative perspectives into account as well as an empirical needs assessment among teachers and teacher educators to clarify and analyse the science subject matter. (2) In a second step, the student teacher´s perspective was surveyed to adapt the course to their initial competences, skills and experiences. (3) In a third step, the content and the didactic structure of the practical course was developed iteratively, considering the findings of the preceding steps and various requirements for the design and the tasks of the practical course (e.g., a necessary differentiation or a self-directed examination of the practical tasks in the course). The practical course was taught in several runs and evaluated with respect to the perceived learning outcomes of the student teachers as well as to the quality of the course. The evaluation was carried out through self-assessment of the students in a questionnaire and a written portfolio. The findings of the evaluation indicate a positive perception regarding the quality of the course. The students positively assessed the course structure (e.g., sequence of the course contents) and individual course elements (e.g., concrete course tasks). Furthermore, an increase in practical competences and skills – regardless of initial experience – was found. The work provides groundwork for further studies, for example on the level of competence acquisition or the long-term effect of the practical course. AU - Ermel, Dorothee Leonie ID - 51222 TI - Entwicklung und Evaluation eines Fachpraktikums für das Lehramtsstudium Technik zur Förderung fachpraktischer Kompetenzen ER - TY - CHAP AU - Drepper, Laura AU - Herrmann, Franziska AU - Nußbaum, Alena ED - Lemke, Valerie ED - Kruse, Norbert ED - Steinhoff, Torsten ED - Sturm, Afra ID - 46182 T2 - Schreibunterricht. Studien und Diskurse zum Verschriften und Vertexten TI - Schreibimpulse in sprachlichen Lernprozessen ER - TY - GEN AU - Drepper, Laura ID - 46179 T2 - Wörterbücher zur Sprach- und Kommunikationswissenschaft (WSK) Online TI - Rechtschreibfehler ER - TY - JOUR AU - Drepper, Laura ID - 51293 JF - Die Grundschulzeitschrift TI - Erzählen zu fantastischen Bildern. Kinder sprechen über Formen und Funktionen grammatischer Mittel in Erzählu VL - 341 ER - TY - GEN AU - Drepper, Laura ID - 46178 T2 - Wörterbücher zur Sprach- und Kommunikationswissenschaft (WSK) Online TI - Rechtschreibanalyse ER - TY - GEN AU - Drepper, Laura ID - 46177 T2 - Wörterbücher zur Sprach- und Kommunikationswissenschaft (WSK) TI - Rechtschreibregel ER - TY - CHAP AU - Ströhmer, Michael ED - Diekmann, Julia ED - Moors, Markus ED - Neuwöhner, Andreas ID - 51253 T2 - Monumenta. Erinnerungsorte zwischen Weser und Lippe. Die Monumenta Paderbornsensia des Ferdinand von Fürstenberg TI - Quellen und Flüsse in den Monumenta. Zum Natur- und Umweltbewusstsein eines Barockfürsten VL - 92 ER - TY - BOOK ED - Neuwöhner, Andreas ED - Ströhmer, Michael ID - 51228 TI - Leben an den Quellen. Europäische Wasserkultur entlang der Pader ER - TY - CHAP AU - Morrien, Rita ED - Eke, Norbert Otto ED - Elit, Stefan ID - 49210 T2 - Werke im Dialog. (Virtuelle) Begegnungen anlässlich von 40 Jahren Paderborner Gastdozentur für Schriftstellerinnen und Schriftsteller TI - 'Pappeln, die grüne Messer sind' und 'ratlose Brillenbären in Zoo'. Deformierte Naturverhältnisse bei Angela Krauß und Herta Müller ER - TY - CHAP AU - Morrien, Rita ED - Böker, Ines ED - Schulte Eickholt, Swen ID - 46016 T2 - Interkulturelle Konstellationen in Literaturwissenschaft und Literaturdidaktik. Festschrift für Michael Hofmann TI - Prekäre Existenzen - Geschlecht, Klasse, Ethnizität und Körper in Christian Petzolds "Jerichow" (2008) und Visar Morinas "Exil" (2020) ER - TY - CHAP AU - Morrien, Rita AU - Gfrereis, Heike AU - Seifert, Nicole ED - Albrecht, Jörg ED - Bohn, Jenni ED - Matijevic, Danijel ID - 49209 SN - 978-3-9823326-3-5 T2 - Mit den Gespenstern leben. (Haunting/Heritage) TI - Droste Lab - Geschlecht #2 ER - TY - CHAP AU - Morrien, Rita ED - Blasberg, Cornelia ED - Grywatsch, Jochen ID - 49211 SN - 978-3-98859-020-6 T2 - Droste Jahrbuch 14 TI - Transatlantisches Nachwirken - Annette von Droste-Hülshoff und Cindy Sherman im 'Cross-Mapping'-Verfahren ER - TY - JOUR AU - Morrien, Rita ID - 46015 JF - Weimarer Beiträge TI - Aquatische Relektüre: Christian Petzolds "Undine" erklärt Berlin und geht VL - 1 ER - TY - JOUR AB - Mit dem Begriff wissenschaftsbezogener Rechtspopulismus/-extremismus fokussiert der Beitrag solche (extrem) rechten Organisationen, Praktiken und Diskursstrategien, die sich auf das Feld der Wissenschaft beziehen. Dabei rückt in einer qualitativen Interview-Studie die Betroffenenperspektive in den Mittelpunkt, die ein blinder Fleck der Forschung ist: Wie nehmen Betroffene wissenschaftsbezogenen Rechtspopulismus/-extremismus wahr und welche Umgangsweisen finden sie? Präsentiert werden Ergebnisse zur widersprüchlichen Erscheinungsform von wissenschaftsbezogenem Rechtspopulismus/-extremismus. Neben erwartbaren Phänomenen (zum Beispiel (kultur-)rassistischen, misogynen, antidemokratischen und verschwörungstheoretischen Positionierungen) zeigt sich dieser insofern widersprüchlich, als dass er zwischen Inanspruchnahme von Wissenschaftlichkeit sowie Wissenschaftsfreiheit auf der einen Seite und Wissenschaftsfeindlichkeit auf der anderen Seite oszilliert. Er trifft mit Hochschulen auf Institutionen, deren Strukturen einen kritischen Umgang erschweren, und er wirkt weit über die jeweils konkreten Situationen seines Erscheinens hinaus. Unsere Analysen untermauern die Notwendigkeit, die Bedeutung von wissenschaftsbezogenem Rechtspopulismus/-extremismus in seiner Widersprüchlichkeit über die jeweiligen Situationen hinaus zu erkennen und wissenschaftsspezifische Antworten zu finden, die dieser Widersprüchlichkeit Rechnung tragen – und sind damit eine Aufforderung an Hochschulen und alle dort tätigen Personen. AU - Haker, Christoph AU - Otterspeer, Lukas ID - 51256 IS - 1 JF - ZRex – Zeitschrift für Rechtsextremismusforschung SN - 2701-9624 TI - Wissenschaftsbezogener Rechtspopulismus/-extremismus an Hochschulen – Perspektiven von Betroffenen VL - 3 ER - TY - JOUR AB - In this article we prove meromorphic continuation of weighted zeta functions in the framework of open hyperbolic systems by using the meromorphically continued restricted resolvent of Dyatlov and Guillarmou (2016). We obtain a residue formula proving equality between residues of weighted zetas and invariant Ruelle distributions. We combine this equality with results of Guillarmou, Hilgert and Weich (2021) in order to relate the residues to Patterson-Sullivan distributions. Finally we provide proof-of-principle results concerning the numerical calculation of invariant Ruelle distributions for 3-disc scattering systems. AU - Schütte, Philipp AU - Weich, Tobias AU - Barkhofen, Sonja ID - 31059 JF - Communications in Mathematical Physics TI - Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems VL - 398 ER - TY - GEN AB - We present a numerical algorithm for the computation of invariant Ruelle distributions on convex co-compact hyperbolic surfaces. This is achieved by exploiting the connection between invariant Ruelle distributions and residues of meromorphically continued weighted zeta functions established by the authors together with Barkhofen (2021). To make this applicable for numerics we express the weighted zeta as the logarithmic derivative of a suitable parameter dependent Fredholm determinant similar to Borthwick (2014). As an additional difficulty our transfer operator has to include a contracting direction which we account for with techniques developed by Rugh (1992). We achieve a further improvement in convergence speed for our algorithm in the case of surfaces with additional symmetries by proving and applying a symmetry reduction of weighted zeta functions. AU - Schütte, Philipp AU - Weich, Tobias ID - 51206 T2 - arXiv:2308.13463 TI - Invariant Ruelle Distributions on Convex-Cocompact Hyperbolic Surfaces -- A Numerical Algorithm via Weighted Zeta Functions ER - TY - GEN AB - Let $X=X_1\times X_2$ be a product of two rank one symmetric spaces of non-compact type and $\Gamma$ a torsion-free discrete subgroup in $G_1\times G_2$. We show that the spectrum of $\Gamma \backslash X$ is related to the asymptotic growth of $\Gamma$ in the two direction defined by the two factors. We obtain that $L^2(\Gamma \backslash G)$ is tempered for large class of $\Gamma$. AU - Weich, Tobias AU - Wolf, Lasse Lennart ID - 51207 T2 - arXiv:2304.09573 TI - Temperedness of locally symmetric spaces: The product case ER - TY - JOUR AU - Haker, Christoph AU - Otterspeer, Lukas AU - Rödel, Severin Sales ID - 51254 IS - 4 JF - ZSE Zeitschrift für Soziologie der Erziehung und Sozialisation SN - 1436-1957 TI - Editorial: Bildungsbezogener Rechtspopulismus/-extremismus ER - TY - GEN AU - Haker, Christoph AU - Otterspeer, Lukas AU - Thole, Werner ID - 51271 TI - Einladung zum Draußen-Bleiben. Safer Spaces sind nicht nur Schutzraum, sie sind eine Methode der Herrschafts- und Erkenntniskritik. ER - TY - CONF AU - Haker, Christoph AU - Otterspeer, Lukas ED - Heinemann, Alisha ED - Karakaşoğlu, Yasemin ED - Linnemann, Tobias ED - Rose, Nadine ED - Sturm, Tanja ID - 51302 SN - 9783847427506 T2 - Entgrenzungen. Beiträge zum 28. Kongress der Deutschen Gesellschaft für Erziehungswissenschaft TI - Wie hältst du es mit der Wahrheit? Bilder von Wissenschaft und Wissenschaftler*in-Sein angesichts von Diagnosen der Postfaktizität. ER - TY - CHAP AU - Haker, Christoph AU - Otterspeer, Lukas ED - Beutel, Silvia-Iris ED - Ruberg, Christiane ID - 51303 T2 - Ungewissheit als Erfahrung in der Demokratie TI - Gegen eine Militarisierung des Pädagogischen. Über die Folgen des Ukraine-Kriegs für die politische Bildung ER - TY - CONF AU - Haker, Christoph AU - Lehnert, Esther AU - Otterspeer, Lukas AU - Thole, Werner ED - Villa, Paula-Irene ID - 51304 T2 - Polarisierte Welten. Verhandlungen des 41. Kongresses der Deutschen Gesellschaft für Soziologie in Bielefeld 2022 TI - Wissenschaftsbezogener Rechtspopulismus/-extremismus. Eine Podiumsdiskussion. ER - TY - JOUR AU - Haker, Christoph AU - Otterspeer, Lukas ID - 51255 IS - 4 JF - ZSE Zeitschrift für Soziologie der Erziehung und Sozialisation SN - 1436-1957 TI - Wissenschaftsbezogener Rechtspopulismus/-extremismus an Hochschulen - eine Feldexploration und Herausforderungen in der Lehre ER - TY - GEN AU - Haak, Viktor AU - Yang, Keke AU - Meschut, Gerson ID - 50551 T2 - 13. Fügetechnisches Gemeinschaftskolloquium TI - Einfluss von Prozessparametern auf Dreiblech-Hybrid-Mischverbindungen beim zweistufigen Widerstandselementschweißen ER - TY - CHAP AU - Schreckenberg, Stefan AU - Marchetti, Andreas ED - del Valle, Victoria ED - Heyder, Karoline ED - Schlaak, Claudia ID - 51174 T2 - Europa im Fremdsprachenunterricht TI - Europa erfahren, begreifen, vermitteln. Ansätze zur Entwicklung einer synkritischen Europadidaktik ER - TY - JOUR AB - Der Beitrag betrachtet die digitale häusliche Lernumwelt von Kindern unter besonderer Berücksichtigung der Differenzkategorien Herkunft und Sprache und erarbeitet Zusammenhänge zwischen dem Migrationshintergrund, der Familiensprache, einer internetbezogenen Eltern-Kind-Interaktion sowie einer unterhaltungs- und schulbezogenen Nutzung des Internets von Kindern. Empirische Grundlagen sind standardisierte Eltern- und Kinderbefragungen sowie ethnografisch orientierte Untersuchungen in Familien. Die quantitativen Analysen zeigen, dass Kinder, deren Hauptverkehrssprache in der Familie nicht Deutsch ist, häufiger gemeinsam mit ihren Eltern das Internet nutzten. Vertiefend liessen in der qualitativen Untersuchung diejenigen Kinder häufigere und komplexere Internetnutzungsformen für schulische Zwecke erkennen, die einen Migrationshintergrund aufweisen und hauptsächlich in ihrer Herkunftssprache (nicht Deutsch) innerhalb der Familie sprechen. Insbesondere in Familien, die selten in der Häuslichkeit Deutsch sprechen, hat sich die (gemeinsame) Internetrecherche als Mittel zur Kompensation von Sprachbarrieren erwiesen. Fehlende elterliche Unterstützungsmöglichkeiten aufgrund von sprachlichen Verständnisproblemen können insofern durch kindliche, elterliche oder gemeinsame Rechercheprozesse ausgeglichen werden. AU - Richter, Lea AU - Gruchel, Nicole AU - Buhl, Heike M. AU - Kamin, Anna-Maria ID - 47856 JF - MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung KW - General Medicine SN - 1424-3636 TI - Herkunftsbedingte und sprachliche Einflüsse bei der häuslichen Internetnutzung von Kindern ER -