@inbook{64793,
  abstract     = {{The article explores the role of teachers in self-directed songwriting in school music based on the informal learning approach. It investigates a didactic design that was implemented in six schools and was empirically researched utilizing si-tuational analysis. Based on tensions, that emerge due to conflicting expectations, it can be shown, that the teacher's role extends beyond the dichotomy of directive instruction versus open facilitation. Instead, it encompasses an interplay of six divergent roles which are discussed in their positions in relation to each other. These considerations enrich the understanding of teaching practices in popular music education, emphasizing the redefinition of teacher-student relationships for song-writing in school music.}},
  author       = {{Godau, Marc and Barreiro, Julia and Hermann, Katharina and Neuhausen, Timo and Maxelon, Dominik and Weidner, Verena}},
  booktitle    = {{46. Jahresband des Arbeitskreises Musikpädagogische Forschung/46th Yearbook of the German Association for Research in Music Education}},
  editor       = {{Frey-Konrad, Ute and Hofbauer, Viola Cäcilia and Blanchard, Olivier and Bugiel, Lukas}},
  isbn         = {{9783818800710}},
  publisher    = {{Waxmann}},
  title        = {{{"Wofür bin ich denn hier, wenn ich nicht in irgendeiner Weise auch helfen kann?" Zur Rolle der Lehrkraft beim selbstständigen Songwriting im Unterricht}}},
  doi          = {{10.31244/9783818850715.13}},
  year         = {{2025}},
}

@inbook{64792,
  abstract     = {{The role of institutionalized standards for the hybridization of musical practices. On the socio-materiality of songwriting-producing in the bedroom studio This study examines the socio-materiality of hybrid music practices in bedroom studios, focusing on the interplay between traditional music education institutions and YouTube education. A single case situational analysis reveals how standardized instrumental and music production practices are combined to form a hybrid practice. It shows that traditional music education institutions, such as music schools and conservatories, specialize in the selection of chord tones, while You-Tube videos focus on sound design. Using an actor-network theory approach, the study demonstrates the permeability of informal and institutional learning spaces. The findings suggest that songwriting-producing is not simply a sum of different practices, but rather a process of negotiation and compromise between different standards and goals, as well as the distribution of practice between humans and technology.}},
  author       = {{Neuhausen, Timo}},
  booktitle    = {{46. Jahresband des Arbeitskreises Musikpädagogische Forschung/46th Yearbook of the German Association for Research in Music Education}},
  editor       = {{Frey-Konrad, Ute and Hofbauer, Viola Cäcilia and Blanchard, Olivier and Bugiel, Lukas}},
  isbn         = {{9783818800710}},
  publisher    = {{Waxmann}},
  title        = {{{Die Rolle institutionalisierter Standards für die Hybridisierung musikalischer Praxen. Zur Soziomaterialität von Songwriting-Producing im Bedroom-Studio}}},
  doi          = {{10.31244/9783818850715.19}},
  year         = {{2025}},
}

@inproceedings{64798,
  abstract     = {{Lead-containing piezoelectric ceramics are still the base for today’s ultrasonic transducers used in broad applications. This is partly due to missing powerful lead-free piezoelectric ceramic parts in the commercial market. There has been much research on lead-free materials but developing them into marketable parts seems to be an ongoing process. The actual exemption of ROHS has expired, but as the new exemption has already been requested, ceramic suppliers keep on selling lead containing products. Nevertheless, these should be replaced by lead-free alternatives for environmental and health issues. 
This contribution focuses on exploring the technological readiness level of lead-free hard piezoceramics for prestressed ultrasonic transducers. A small series of bolted Langevin transducers was set up with standard PZT material and three commercial lead-free variants. Results of the building process from individual ring ceramic characteristics to transducer load tests are presented. The main finding of this study is that the lead-free materials technically can compete with the standard PZT for medium-power applications. Some adaptations in the ultrasonic system must be done: the geometry must be altered to fit resonance frequency, and higher voltages or thinner ceramics are needed to achieve the same vibration level at low load. For reaching same power, the volume of lead-free ceramics must be 1.5 to 3 times larger. As already promoted in literature, mechanical losses at high vibration levels are smaller for the lead-free materials. This might help to argument lead-free piezoelectric materials in some applications.

References
1.	Directive 2011/65/EU of the European Parliament and of the Council of 8 June 2011 on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment. EUR-Lex Document 02011L0065-20240801. Available online: http://data.europa.eu/eli/dir/2011/65/2024-08-01 (accessed on 24 January 2025).
2.	Langevin, P. (1918) Method and Apparatus for Transmitting and Receiving Submarine Elastic Waves Using the Piezoelectric Properties of Quartz. French Patent Office; Patent No. FR505703.
3.	Hemsel, T.; Twiefel, J. (2023) Piezoelectric Ultrasonic Power Transducers. In Encyclopedia of Materials: Electronics; Academic Press: Oxford, UK; pp. 276–285. https://doi.org/10.1016/b978-0-12-819728-8.00047-4.
4.	ATHENA Technologie Beratung GmbH (2025) Description of Ultrasound Generator. Available online: http://shop.myathena.de/epages/12074748.sf/de_DE/?ObjectPath=/Shops/12074748/Products/AM200 (accessed on 13 January 2025).
5.	Littmann, W.; Hemsel, T.; Kauczor, C.; Wallaschek, J.; Sinha, W. (2003) Load-adaptive phase-controller for resonant driven piezoelectric devices. Proc. World Congr. Ultrason. 2003, 48, 547–550.
6.	Scheidemann, C., Bornmann, P., Littmann, W., & Hemsel, T. (2025). Lead-Free Ceramics in Prestressed Ultrasonic Transducers. Actuators, 14(2), 55. https://doi.org/10.3390/act14020055
}},
  author       = {{Scheidemann, Claus and Bornmann, Peter and Littmann, Walter and Hemsel, Tobias}},
  keywords     = {{lead free piezoelectric ceramics, bolted Langevin transducer, medium power ultrasound.}},
  location     = {{Vilnius, Lithuania}},
  title        = {{{Bolted Langevin transducers with leadfree piezoelectric ceramics}}},
  year         = {{2025}},
}

@inbook{58115,
  author       = {{Elit, Stefan}},
  booktitle    = {{Was im Gedicht geschieht: Jan Wagner. Paderborn Wintersemester 2023/2024}},
  editor       = {{Elit, Stefan and Eke, Norbert Otto}},
  isbn         = {{978-3-8498-2062-6}},
  pages        = {{89--105}},
  publisher    = {{Aisthesis}},
  title        = {{{„Alles was gut ist“ – Jan Wagners lyrische Speisen (mit Getränken)}}},
  volume       = {{42}},
  year         = {{2025}},
}

@inbook{58691,
  author       = {{Albus, Vanessa}},
  booktitle    = {{Nachhaltigkeit in der Medienkommunikation. Ethische Anforderungen und praktische Lösungsansätze}},
  editor       = {{Kokoschka, Vanessa and Kosak, Stefan and Paganini, Claudia and Rademacher, Lars}},
  isbn         = {{ISBN 978-3-7560-1814-7}},
  pages        = {{171--184}},
  publisher    = {{Nomos}},
  title        = {{{Paradigmenwechsel und Metapher. Ein Weg zur Gesellschaft der Nachhaltigkeit?}}},
  volume       = {{23}},
  year         = {{2025}},
}

@inbook{57910,
  author       = {{Sackel, Johanna}},
  booktitle    = {{The Routledge Handbook on the Economic History of Natural Resources }},
  editor       = {{Storli, Espen and Dungy, Madeleine and Gerrard, Audrey}},
  title        = {{{Fisheries and Fishing}}},
  year         = {{2025}},
}

@article{60552,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The incorporation of heteroatoms into the framework of polycyclic aromatic hydrocarbons (PAHs), in particular of nitrogen to yield polycyclic aromatic nitrogen heterocycles (PANHs), has been proposed for both astronomical and combustion environments, but no suitable precursors and pathways have been found. Analogous pathways to PAH formation are kinetically or energetically inhibited in the presence of a nitrogen heteroatom. We report on the reaction of phenylnitrene (<jats:sup>3</jats:sup>PhN, <jats:italic>c</jats:italic>‐C<jats:sub>6</jats:sub>H<jats:sub>5</jats:sub>N) with resonance‐stabilized propargyl radicals (C<jats:sub>3</jats:sub>H<jats:sub>3</jats:sub>) and find that the association reaction bifurcates depending on the orientation of the attacking propargyl radical and yields multiple isomeric products. Among them, we identify the condensed‐ring quinoline and conclude that nitrenes are viable candidates to drive the formation of PANHs.</jats:p>}},
  author       = {{Arns, Rahel and McClish, Rory and Hemberger, Patrick and Bodi, Andras and Bouwman, Jordy and Kasper, Tina and Schleier, Domenik}},
  issn         = {{1433-7851}},
  journal      = {{Angewandte Chemie International Edition}},
  publisher    = {{Wiley}},
  title        = {{{Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles?}}},
  doi          = {{10.1002/anie.202503940}},
  year         = {{2025}},
}

@article{60551,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The incorporation of heteroatoms into the framework of polycyclic aromatic hydrocarbons (PAHs), in particular of nitrogen to yield polycyclic aromatic nitrogen heterocycles (PANHs), has been proposed for both astronomical and combustion environments, but no suitable precursors and pathways have been found. Analogous pathways to PAH formation are kinetically or energetically inhibited in the presence of a nitrogen heteroatom. We report on the reaction of phenylnitrene (<jats:sup>3</jats:sup>PhN, <jats:italic>c</jats:italic>‐C<jats:sub>6</jats:sub>H<jats:sub>5</jats:sub>N) with resonance‐stabilized propargyl radicals (C<jats:sub>3</jats:sub>H<jats:sub>3</jats:sub>) and find that the association reaction bifurcates depending on the orientation of the attacking propargyl radical and yields multiple isomeric products. Among them, we identify the condensed‐ring quinoline and conclude that nitrenes are viable candidates to drive the formation of PANHs.</jats:p>}},
  author       = {{Arns, Rahel and McClish, Rory and Hemberger, Patrick and Bodi, Andras and Bouwman, Jordy and Kasper, Tina and Schleier, Domenik}},
  issn         = {{1433-7851}},
  journal      = {{Angewandte Chemie International Edition}},
  publisher    = {{Wiley}},
  title        = {{{Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles?}}},
  doi          = {{10.1002/anie.202503940}},
  year         = {{2025}},
}

@inbook{60558,
  author       = {{Neuhausen, Timo}},
  booktitle    = {{Popular Music Songwriting as Cultural, Creative, and Economic Practice / Songwriting von populärer Musik als kulturelle, kreative und ökonomische Praxis}},
  editor       = {{Ahlers, Michael and Herbst, Jan-Peter and Holtsträter, Knut}},
  pages        = {{89–110}},
  publisher    = {{Waxmann}},
  title        = {{{Die Übersetzung von Inspiration in Songs. Referenzielle Songwriting-Praktiken in Bedroom-Studios}}},
  year         = {{2025}},
}

@inbook{60559,
  author       = {{Godau, Marc and Neuhausen, Timo}},
  booktitle    = {{Rollen und Funktionen von Musik in der digitalen Ära}},
  editor       = {{Fuhrmann, Wolfgang and Herr, Corinna and Mackensen, Karsten}},
  pages        = {{185–220}},
  publisher    = {{Rombach Wissenschaft}},
  title        = {{{Becoming a One-Person-Band. Zur soziomateriellen Konstitution informeller Bildungspraxis als zirkulierendes Referenzieren}}},
  year         = {{2025}},
}

@inbook{60607,
  author       = {{Süßmann, Johannes}},
  booktitle    = {{775 — Westfalen. Das Buch. Eine Region wird gemacht. Begleitband zur Ausstellung im LWL-Museum in der Kaiserpfalz Paderborn, 16. Mai 2025–1. März 2026}},
  editor       = {{Hersh, Johanna and Linde, Roland and Kroker, Martin and Wolfram, Lars}},
  pages        = {{157–165}},
  publisher    = {{Schnell & Steiner}},
  title        = {{{Westfalenspott/Westfalenlob vom Humanismus bis zum 17. Jahrhundert. Mit einem Ausblick auf die Wirkung in der Moderne}}},
  year         = {{2025}},
}

@misc{60609,
  author       = {{Süßmann, Johannes}},
  title        = {{{Der Begriff der Religion im ersten deutschen Fremdwörterbuch von 1571}}},
  year         = {{2025}},
}

@article{60659,
  abstract     = {{L’article précédent explore les liens institutionnels et diplomatiques entre les Pays-Bas espagnols et le Saint-Empire romain germanique aux XVIe et XVIIe siècles. À travers une structure politique complexe et morcelée, le Saint-Empire incarne le principe de souveraineté partagée, tandis que les territoires bourguignons, sous domination espagnole, cherchent à préserver leur rôle au sein de l’Empire via le Cercle de Bourgogne. La montée en puissance de Louis XIV et sa politique d’expansion fragilisent cet équilibre, forçant les diplomates espagnols à renforcer les alliances impériales, bien que ces tentatives soient souvent entravées par les divisions internes du Reich. Les guerres successives, jusqu'à la Ligue d'Augsbourg et le traité de Ryswick, illustrent les tensions entre ambitions nationales et équilibre européen, dans lesquelles les diplomates comme les Neuveforge jouent un rôle essentiel. }},
  author       = {{Huybrechts, Yves and Di Pillo, Théo }},
  journal      = {{BeNeLuxNet}},
  publisher    = {{Belgienzentrum, UPB}},
  title        = {{{La famille de Neuveforge comme lien entre Pays-Bas et Saint-Empire. Partie ii}}},
  year         = {{2025}},
}

@article{60660,
  abstract     = {{Cet article explore en trois parties le rôle crucial de la famille Neuveforge dans la relation entre les Pays-Bas espagnols et le Saint-Empire romain germanique à la fin du XVIIe siècle, dans le contexte de la Guerre de la Ligue d'Augsbourg et des ambitions expansionnistes de Louis XIV. En tant que juristes influents siégeant au Reichstag, ils jouent un rôle clé dans les négociations visant à récupérer la ville et la forteresse stratégique de Luxembourg pour l’Espagne. Grâce à leur statut social, leur maîtrise des langues et leur expertise juridique, ils manœuvrent habilement face aux Français. La trajectoire des Neuveforge illustre ainsi l’influence déterminante des diplomates et juristes dans les relations entre les Pays-Bas et l’Empire, au cœur d’une Europe en pleine tourmente. Nous aborderons ce sujet en trois parties. Dans cette première partie, nous aborderons la nature générale et les problèmes des relations entre les Pays-Bas espagnols et l'Empire.
}},
  author       = {{Huybrechts, Yves and Di Pillo, Théo}},
  journal      = {{BeNeLuxNet}},
  publisher    = {{Belgienzentrum, UPB}},
  title        = {{{Liens et défis entre Pays-Bas espagnols et Saint-Empire romain germanique. Partie i}}},
  year         = {{2025}},
}

@article{60661,
  abstract     = {{L’article précédent retrace le rôle diplomatique de la famille Neuveforge, originaire du Luxembourg, qui sert de lien entre les Pays-Bas espagnols et le Saint-Empire romain germanique au XVIIᵉ siècle. Actifs à la Diète de Ratisbonne, Louis et Jean Henri de Neuveforge négocient pour protéger les intérêts des Habsbourg, notamment la reconquête du Luxembourg, stratégique mais capturé par Louis XIV en 1684. Leur maîtrise du droit, des langues étrangères et des subtilités des titulatures nobiliaires s’avère essentielle dans un contexte où chaque mot peut influer sur les rapports de pouvoir. À travers leurs efforts, la famille Neuveforge illustre l'importance de la diplomatie dans un ordre européen marqué par la compétition entre France, Espagne et Empire. }},
  author       = {{Huybrechts, Yves and Di Pillo, Théo}},
  journal      = {{BeNeLuxNet}},
  publisher    = {{Belgienzentrum, UPB}},
  title        = {{{La famille Neuveforge : une influence diplomatique concrète. Partie iii}}},
  year         = {{2025}},
}

@article{60663,
  abstract     = {{Wie soll man glücklich sein und sich damit zufriedengeben, von Ungerechten beherrscht zu werden? Wenn diese Ungerechten zudem untereinander Kriege führen, unter dessen Auswirkungen man leidet, ohne dass man die Möglichkeit hätte einzugreifen? Wer kann in dieser Ohnmacht noch Glück finden? Und an die Herrscher gefragt: Wie muss der ideale Politiker sein? Hierauf wollte Justus Lipsius Antworten anbieten. Die Bedeutung dieser Fragen, die auch heute noch relevant sind, wird aus seiner eigenen Zeit heraus nochmal präsent. Lipsius lebte nämlich in Zeiten intensiver politischer und vor allem religiöser Konflikte, welche seine Biografie in mehreren Punkten berühren. Er musste nicht nur mehrmals vor Konflikten fliehen, sondern seine Werke wurden auch äußerst kritisch von der Kirche und den Landesherren betrachtet. In diesem Beitrag wird zunächst kurz der Werdegang Lipsius‘ geschildert, bevor auf zwei seiner wichtigsten Werke und deren Einfluss auf die Staatslehre jener Zeit eingegangen wird.}},
  author       = {{Huybrechts, Yves and Sanders, Joshua}},
  journal      = {{BelgienNet}},
  publisher    = {{Belgienzentrum, UPB}},
  title        = {{{Lipsius, ein katholischer Antimachiavelli?}}},
  year         = {{2025}},
}

@inproceedings{60665,
  abstract     = {{[Internes Abstract] Die Periode zwischen 1585 und 1830 voller Lücken, oder altmodische Deutungen. Entweder werden Periode wie die Regierung der Erzherzöge oder die Regierung Maria Theresias intensiv und extensiv studiert, oder es wird die ganze Periode unter „fremde Herrscher“ subsumiert. Die allgemeine Kenntnisse (sowohl in Belgien, als auch im Ausland über das Gebiet in dieser Zeit beschränkt.) Ist die lückenhafte Beschäftigung damit eine Folge der Klischees oder eher umgekehrt? Vor allem aus Sicht Deutschlands: Heißt es dann, die Periode sei bedeutungslos? Meine Erklärung: Unsere Erwartung, hier einen Staat vorzufinden, scheitert und findet stattdessen ein „kadükes“ Staatsbild. War hier kein Staat? Oder einer, der sich nicht dem gängigen Bild anpasst und deshalb unsichtbar bleibt? Und war er dann unglücklich/in Misere, weil er kein unabhängiger Staat war?}},
  author       = {{Huybrechts, Yves}},
  location     = {{Burg Rothenfels}},
  title        = {{{‘Flandern‘ zwischen Trennung und Vereinigung – Misere von 1585 bis 1815?}}},
  year         = {{2025}},
}

@inproceedings{60672,
  author       = {{Huybrechts, Yves}},
  location     = {{Burg Rothenfels}},
  title        = {{{Was ist Flandern in der Geschichte Flanderns?}}},
  year         = {{2025}},
}

@article{60851,
  author       = {{Ghosh, Koustav and Milaege, Dennis and Steinmeier, Paul and Schaper, Mirko and Hoyer, Kay-Peter and Pramanik, Sudipta}},
  issn         = {{1059-9495}},
  journal      = {{Journal of Materials Engineering and Performance}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Effect of Strain Rate on the Deformation Behavior and Energy Absorption Characteristics of LPBF-Processed Ti2448 Microarchitectured Lattice Structures}}},
  doi          = {{10.1007/s11665-025-11669-6}},
  year         = {{2025}},
}

@article{61006,
  abstract     = {{<jats:sec>
                  <jats:title>Objective</jats:title>
                  <jats:p>This cross-sectional study aimed to investigate subjective and objective deficits of neurocognitive function, balance and vestibulo-ocular performance in athletes with sport-related concussion (SRC) compared with healthy control athletes.</jats:p>
               </jats:sec>
               <jats:sec>
                  <jats:title>Methods</jats:title>
                  <jats:p>72 patients with SRC and 72 matched healthy controls were included. All participants performed computerised testing of neurocognitive function, device-assisted balance testing and objective evaluation of vestibulo-ocular function (video head impulse and dynamic visual acuity test). Clinical symptom clusters (headache/migraine, anxiety/mood, fatigue, cognitive, vestibular, ocular) were determined for each patient using the Sport Concussion Assessment Tool, 5th edition symptom evaluation. Independent t-tests or Mann-Whitney U tests were calculated to test for group differences in the whole cohort and according to clinical symptom clusters.</jats:p>
               </jats:sec>
               <jats:sec>
                  <jats:title>Results</jats:title>
                  <jats:p>When investigating the whole cohort, significant differences between patients with SRC and control subjects were found in one parameter of balance testing (sway velocity double-firm), with lower performance in the SRC group (p&lt;0.001, r=0.345). The number of symptom clusters assigned to the SRC patients ranged from 0 (no definite cluster) to 6 (all clusters), and all clusters were frequent in the investigated cohort. Patients with vestibular, cognitive and fatigue symptom clusters demonstrated significantly lower performance in balance testing compared with SRC patients without those clusters (p&lt;0.001 to p=0.005, r=0.368–0.439). Additionally, SRC patients presenting with symptoms of the fatigue cluster demonstrated significantly worse performance in vestibulo-ocular testing compared with SRC patients without the fatigue cluster (p=0.006, d=0.781).</jats:p>
               </jats:sec>
               <jats:sec>
                  <jats:title>Conclusion</jats:title>
                  <jats:p>SRC patients presented with variable numbers and qualities of clinical symptom clusters. Some subjective clusters were associated with abnormal objective tests of other clusters (vestibular, cognitive and fatigue with abnormal balance; and fatigue with abnormal vestibulo-ocular performance). Clinical symptom clusters and their overlap should be considered when examining patients with SRC.</jats:p>
               </jats:sec>}},
  author       = {{Weike, Lea and Reeschke, Rebecca and Reinsberger, Claus}},
  issn         = {{2055-7647}},
  journal      = {{BMJ Open Sport &amp; Exercise Medicine}},
  number       = {{3}},
  publisher    = {{BMJ}},
  title        = {{{Clinical symptom clusters, neurocognitive function, balance and vestibulo-ocular function in athletes with sport-related concussion}}},
  doi          = {{10.1136/bmjsem-2024-002447}},
  volume       = {{11}},
  year         = {{2025}},
}