@inproceedings{62795,
  author       = {{Krabbe, Carolin and Assbrock, Agnes and Reineke, Malte Fabian and Beverungen, Daniel}},
  booktitle    = {{Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI25)}},
  title        = {{{Workarounds—A Domain-Specific Modeling Language}}},
  year         = {{2025}},
}

@inbook{62799,
  author       = {{Schemel, Nele and Schröer, Franz and Tenberge, Claudia}},
  booktitle    = {{Mitwelt im Wandel wahrnehmen, verstehen und gestalten}},
  editor       = {{Steinmann, Annett and Seidler-Proffe, Maximilian and Lange-Schubert, Kim}},
  pages        = {{146--161}},
  publisher    = {{Verlag Julius Klinkhardt}},
  title        = {{{Technische Grundbildung im Elementar- und Primarbereich gestalten – Evidenzbasierte Entwicklung spiralcurricularer Lernangebote zur Förderung von Problemsolving integrating Computational Thinking (PiCT)}}},
  year         = {{2025}},
}

@article{62798,
  abstract     = {{We investigated electrodeposited nanoparticulate nickel selenide (pre)catalysts that transform into nickel oxides/oxyhydroxides under oxygen evolution reaction conditions in alkaline solutions. Previous studies of this transformation were conducted at lower current densities than those of industrial relevance (≥1 A cm–2). We used ultramicroelectrodes (UMEs) to achieve such current densities, benefiting from their small size, ensuring low absolute currents and low ohmic drop but high current densities. Morphological degradation of the catalyst material was only observed at current densities exceeding 1 A cm–2 but not for smaller ones. Using X-ray absorption, X-ray photoemission spectroscopy, and X-ray diffraction, we confirmed that the degradation was accompanied by the literature-known transformation of nanoparticulate Ni3Se2 (bulk)/NiSe (surface) into nickel oxyhydroxide. The transformation of the precatalyst goes along with a significant improvement in the charge transfer kinetics observed by decreasing Tafel slopes with ongoing experimental time extracted from cyclic voltammetry (CV) experiments and electrochemical impedance spectroscopy (EIS) in the high-frequency range. However, these kinetic improvements are accompanied by limitations in mass transport concluded from decreasing current responses at high overpotentials in CVs and increasing impedance in the low-frequency range of the EIS spectra after extended CV cycling. These mass transport limitations originated from morphological degradations at the UME exceeding 1 A cm–2 which we proved by applying identical location scanning electron microscopy. This has not been reported in studies that have been limited to lower current densities before. Our findings showcase how UMEs can be used to study (pre)catalysts (herein nickel selenides) under current densities of industrial relevance in the absence of ohmic drop-related ambiguities, combined with in-depth materials characterization studies, e.g., identical location microscopy and advanced spectroscopic methods. This approach enables direct evaluation and comparison of catalyst materials and thus demonstrates how to overcome long-standing limitations of electrocatalyst design and testing.}},
  author       = {{Hiege, Felix and Chang, Chun-Wai and Trost, Oliver and van Halteren, Charlotte E. R. and Hosseini, Pouya and Bendt, Georg and Schulz, Stephan and Feng, Zhenxing and Linnemann, Julia and Tschulik, Kristina}},
  issn         = {{1944-8244}},
  journal      = {{ACS Applied Materials & Interfaces}},
  keywords     = {{Electrocatalysis, oxygen evolution reaction, nickel selenide, microelectrode}},
  number       = {{29}},
  pages        = {{41893--41903}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Morphological Degradation of Oxygen Evolution Reaction-Electrocatalyzing Nickel Selenides at Industrially Relevant Current Densities}}},
  doi          = {{10.1021/acsami.5c05381}},
  volume       = {{17}},
  year         = {{2025}},
}

@article{62819,
  abstract     = {{Novel oxalate-bridged heterotrinuclear complexes [A][Mn2Cr(bpy)2(H2O)2Cl2(C2O4)3] (A = (CH3)2(C2H5)NH+ (1) and (CH3)(C2H5)2NH+ (2); bpy = 2,2′-bipyridine) were synthesized using an aqueous solution of [A]3[Cr(C2O4)3] as a building block in reaction with Mn2+ ions and with the addition of the N-donor ligand bipyridine. The isostructural heterometallic complex salts were characterized by single-crystal and powder X-ray diffraction, infrared and impedance spectroscopy, thermal analysis and magnetization measurements. The trinuclear anion [{Mn(bpy)(H2O)Cl(μ-C2O4)}2Cr(C2O4)]− consists of two [Mn(bpy)(H2O)Cl]+ units bridged by the [Cr(C2O4)3]3− anion, which acts as a bidentate ligand towards each of the manganese atoms. The anions are hydrogen bonded to each other via coordinated chloride anions, water molecules and oxygen oxalate atoms, resulting in two-dimensional (2D) hydrogen bonding layers. Compounds exhibit water-assisted proton conductivity behaviour, which was investigated at different temperatures and relative humidities (RH). At 25 °C, an increase in RH from 60% to 93% resulted in an obvious proton conducting switch from 9.1 × 10−11 to 5.6 × 10−5 S cm−1 for 1 and from 7.4 × 10−10 to 1.8 × 10−6 S cm−1 for 2, corresponding to high on/off ratios of about 106 for 1 and 104 for 2. In situ powder X-ray diffraction (PXRD) analysis showed that unit cell parameters of compounds 1 and 2 slightly increase when exposed to humid conditions. This confirmed that incorporation of water molecules into structures with pores and voids causes the proton conductivity switching phenomenon. Magnetic susceptibility measurements indicate a ferromagnetic interaction between Cr3+ and Mn2+ ions bridged by the bis(bidentate) oxalate group. The prepared compounds 1 and 2 were explored as single-source precursors for the formation of spinel oxide by their thermal treatment. With increasing temperature, the spinel composition changed according to the formula Mn1+xCr2–xO4 (0 ≤ x ≤ 1), where x = 0.7 at 500 °C and x = 1 at 900 °C when tet[MnII]oct[MnIIICrIII]O4 is formed. The (micro)structure, morphology, and optical properties of spinel Mn2CrO4 were characterized by PXRD, scanning electron microscopy and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of this oxide in degradation of the methylene blue dye under Vis irradiation without and with the support of hydrogen peroxide was further investigated.}},
  author       = {{Lozančić, Ana and Burazer, Sanja and Wagner, Tobias and Molčanov, Krešimir and Pajić, Damir and Androš Dubraja, Lidija and Tiemann, Michael and Jurić, Marijana}},
  issn         = {{2050-7526}},
  journal      = {{Journal of Materials Chemistry C}},
  number       = {{41}},
  pages        = {{21179--21195}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel}}},
  doi          = {{10.1039/d5tc02569a}},
  volume       = {{13}},
  year         = {{2025}},
}

@article{62816,
  abstract     = {{The increasing demand for advanced sensing technologies drives the development of chemical sensors using innovative materials. In gas sensing, optical sensors are often used to detect gases such as CO, NOx, and O2. Oxygen sensors typically incorporate dyes into oxygen-permeable matrices like polymers, silica, or zeolites. Alternatively, semiconductor surface chemistry can enable O2 detection. However, these approaches are often limited by slow response and recovery times and low selectivity, restricting their practical applications. The metal-organic framework MOF-76(Eu) and its yttrium-modified variant, MOF-76(Eu/Y) are reported to exhibit highly reversible and fast optical responses to varying O2 concentrations. Time-resolved emission measurements are performed over short (seconds) and long (hours) timescales using N2 and synthetic air mixtures. Cross-sensitivity to humidity is analyzed. Multichannel scaling photon-counting experiments confirm quenching at the linker level, as the emission lifetime remains nearly constant. Yttrium significantly improves stability and performance at room temperature. Structural and optical changes induced by yttrium are investigated. Additionally, MIL-78(Eu), another Eu-BTC-based MOF with a different coordination environment, is synthesized. Unlike MOF-76(Eu), MIL-78(Eu) exhibits distinct optical properties but lacks a reversible response to O2. These results highlight the potential of MOF-76-based materials for high-performance O2 sensing.}},
  author       = {{Zhao, Zhenyu and Weinberger, Christian and Steube, Jakob and Bauer, Matthias and Brehm, Martin and Tiemann, Michael}},
  issn         = {{1616-301X}},
  journal      = {{Advanced Functional Materials}},
  publisher    = {{Wiley}},
  title        = {{{Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)}}},
  doi          = {{10.1002/adfm.202511190}},
  year         = {{2025}},
}

@inproceedings{62818,
  author       = {{Radtke, Sabine}},
  editor       = {{Belalcazar, Catalina}},
  keywords     = {{Sports Coaching, Diversity, Intersectionality}},
  location     = {{Athens}},
  number       = {{S1}},
  pages        = {{S4}},
  publisher    = {{Human Kinetics}},
  title        = {{{Ethical dilemmas in coaching: Diversity and inclusion and the role of the coach}}},
  doi          = {{https://doi.org/10.1123/iscj.2025-0112}},
  volume       = {{12}},
  year         = {{2025}},
}

@article{62179,
  author       = {{Koch, Leon and Baier, Dominik and Rajput, Satyendra and König, Benedikt and Tiemann, Michael and Ebbinghaus, Simon and Nayar, Divya and Huber, Klaus}},
  issn         = {{1520-6106}},
  journal      = {{The Journal of Physical Chemistry B}},
  number       = {{40}},
  pages        = {{10213--10228}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Disaggregation at High Volume Exclusion: An “Overcrowding” Effect}}},
  doi          = {{10.1021/acs.jpcb.5c01245}},
  volume       = {{129}},
  year         = {{2025}},
}

@inproceedings{60637,
  author       = {{Weiser, David and Ditter, Rebecca and Ditter, David  and Siepmann, Karin and Grandrath, Rebecca and Fechner, Sabine and Sommer, Katrin and Bohrmann-Linde, Claudia and Rubner, Isabel}},
  booktitle    = {{International conference New Perspective on Science Education}},
  isbn         = {{979-12-80225-83-2}},
  location     = {{Florence}},
  number       = {{14}},
  publisher    = {{Libreriauniversitaria.it}},
  title        = {{{Innovative teaching with actionbound: Digital pathways in chemistry education - a practical example from ComeNet Chemistry in the ComeMINT Project}}},
  year         = {{2025}},
}

@inbook{61474,
  author       = {{Habig, Sebastian and Großmann, Nadine and Schmid, Andrea M. and van Vorst, Helena and Fechner, Sabine and Wilde, Matthias}},
  booktitle    = {{Interesse revisited}},
  isbn         = {{9783658485412}},
  publisher    = {{Springer Fachmedien Wiesbaden}},
  title        = {{{Empirische Befunde der Interessenforschung der Fächer Biologie, Chemie und Physik im Primar- und Sekundarbereich seit 2012 – Ein systematisches Review}}},
  doi          = {{10.1007/978-3-658-48542-9_4}},
  year         = {{2025}},
}

@inbook{61475,
  author       = {{Zöchling, Sarah and Pletschacher, Laura and Maurer, Christian and Berger, Roland and Lindmaier, Kerstin and Fechner, Sabine and Wodzinski, Rita}},
  booktitle    = {{Interesse revisited}},
  isbn         = {{9783658485412}},
  publisher    = {{Springer Fachmedien Wiesbaden}},
  title        = {{{Interessenförderung im Physik- und Chemieunterricht – Eine Bestandsaufnahme}}},
  doi          = {{10.1007/978-3-658-48542-9_10}},
  year         = {{2025}},
}

@inproceedings{62007,
  abstract     = {{Ensemble methods are widely employed to improve generalization in machine learning. This has also prompted the adoption of ensemble learning for the knowledge graph embedding (KGE) models in performing link prediction. Typical approaches to this end train multiple models as part of the ensemble, and the diverse predictions are then averaged. However, this approach has some significant drawbacks. For instance, the computational overhead of training multiple models increases latency and memory overhead. In contrast, model merging approaches offer a promising alternative that does not require training multiple models. In this work, we introduce model merging, specifically weighted averaging, in
KGE models. Herein, a running average of model parameters from a training epoch onward is maintained and used for predictions. To address this, we additionally propose an approach that selectively updates the running average of the ensemble model parameters only when the generalization performance improves on a validation dataset. We evaluate these two different weighted averaging approaches on link prediction tasks, comparing the state-of-the-art benchmark ensemble approach. Additionally, we evaluate the weighted averaging approach considering literal-augmented KGE models and multi-hop query answering tasks as well. The results demonstrate that the proposed weighted averaging approach consistently improves performance across diverse evaluation settings.}},
  author       = {{Sapkota, Rupesh and Demir, Caglar and Sharma, Arnab and Ngonga Ngomo, Axel-Cyrille}},
  booktitle    = {{Proceedings of the Thirteenth International Conference on Knowledge Capture(K-CAP 2025)}},
  keywords     = {{Knowledge Graphs, Embeddings, Ensemble Learning}},
  location     = {{Dayton, OH, USA}},
  publisher    = {{ACM}},
  title        = {{{Parameter Averaging in Link Prediction}}},
  doi          = {{https://doi.org/10.1145/3731443.3771365}},
  year         = {{2025}},
}

@inbook{48069,
  author       = {{Göddertz, Nina}},
  booktitle    = {{Soziale Frauenberufe in Ost und West}},
  editor       = {{Bock, Karin and Braches-Chyrek, Rita and Spanu, Stephanie}},
  pages        = {{144--162 }},
  publisher    = {{Wochenschau-Verlag}},
  title        = {{{Kindermädchen – Von ‚strebsamen Mädchen‘, fliegenden Regenschirmen und neuen Gewändern eines (nicht) ausgestorbenen Berufes}}},
  year         = {{2025}},
}

@inbook{48066,
  author       = {{Göddertz, Nina}},
  booktitle    = {{Soziale Frauenberufe in Ost und West}},
  editor       = {{Bock, Karin  and Braches-Chyrek , Rita and Spanu, Stephanie }},
  pages        = {{106--127 }},
  publisher    = {{Wochenschau-Verlag}},
  title        = {{{Dienstmädchen – von romantisierten Zuschreibungen und menschenunwürdigen Arbeits- und Lebensbedingungen, damals wie heute.}}},
  year         = {{2025}},
}

@inbook{62829,
  author       = {{Schneider, Lea and Tenberge, Claudia}},
  booktitle    = {{The 42nd Pupils' Attitudes Towards Technology Conference}},
  editor       = {{El Fadil, Brahim and Abdelkrim, Hasni and Yazza, Younes and Blanc, Martin and Samiana, Ibtissam}},
  location     = {{Montreal}},
  pages        = {{426--437}},
  title        = {{{Insights into the current situation of technological education at primary schools – illustrated by the example of Germany }}},
  year         = {{2025}},
}

@article{62794,
  author       = {{Hansmeier, Philipp and Althaus, Maike}},
  journal      = {{Journal of Service Management Research}},
  number       = {{2}},
  title        = {{{Visitor Revival Propositions for Cultural Institutions – A Service Science Perspective}}},
  year         = {{2025}},
}

@inproceedings{60126,
  author       = {{Hansmeier, Philipp and Schäfer, Jannika Marie}},
  booktitle    = {{Thirty-Third European Conference on Information Systems}},
  location     = {{Amman}},
  title        = {{{ARTIFICIAL INTELLIGENCE IN DIGITAL SERVICE ECOSYSTEMS – A TAXONOMY APPROACH}}},
  year         = {{2025}},
}

@inproceedings{60127,
  author       = {{Hansmeier, Philipp}},
  booktitle    = {{Thirty-Third European Conference on Information Systems}},
  title        = {{{CONCEPTUALIZING A CUSTOMER EXPERIENCE FRAMEWORK FOR HYBRID (PHYSICAL-DIGITAL) SERVICE ECOSYSTEMS}}},
  year         = {{2025}},
}

@inproceedings{61378,
  author       = {{Hansmeier, Philipp and zur Heiden, Philipp and Beverungen, Daniel}},
  booktitle    = {{Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI25)}},
  title        = {{{Service Innovation through Data Ecosystems – Designing a Recombinant Method}}},
  year         = {{2025}},
}

@article{59255,
  abstract     = {{<p>Smart service is fundamentally transforming customer experience in both commercial and private contexts. While the information systems and service disciplines have explored the properties and implementation of smart service, there is a gap in understanding how smart service relates to customer experience at the ecosystem level. With the increasing prominence of digital platforms and data spaces, this ecosystem perspective will become crucial for the success of smart service. We report findings from a systematic scoping literature review on smart service themes and related customer experience concepts. Our analysis of 26 high-quality papers reveals three key insights: (1) smart service systems play a pivotal role in enabling customer experience, (2) customer experience in smart service scenarios is often co-created through “hybrid” customer journeys, and (3) these scenarios are subject to an ecosystem-level. Additionally, we identify smart service fundamentals, embeddedness levels, and business innovation as core themes that shape ecosystem-level customer experience. </p>}},
  author       = {{Hansmeier, Philipp and Beverungen, Daniel}},
  issn         = {{2511-8676}},
  journal      = {{Journal of Service Management Research}},
  number       = {{2}},
  pages        = {{74--93}},
  publisher    = {{Nomos Verlag}},
  title        = {{{Ecosystem-Level Customer Experience with Smart Service: Insights from a Systematic Scoping Literature Review}}},
  doi          = {{10.5771/2511-8676-2024-2-74}},
  volume       = {{8}},
  year         = {{2025}},
}

@article{62867,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>Effective manipulation of photonic spin–orbit coupling (SOC) in microcavities is of fundamental importance within topological photonics and applications. Anisotropic organic single‐crystalline materials can induce abundant SOC phenomenon due to their flexible tunability of molecular geometries, however, the intrinsic relationship between molecular geometries/orientations in 3D space and photonic SOC is lacking. In this study, we design two kinds of 2D organic polymorphs for the construction of organic microcavities to investigate the structure‐performance relationships. In two polymorphic microcavities, two distinctive photonic SOC phenomena are observed regardless of the in‐plane anisotropy of organic polymorphs. Theoretical analysis indicates that the photonic SOC strength is strongly influenced by the synergies between the crystal anisotropy and the tilted collective molecular transition dipole moment. Our results uncover the correlation mechanism between the structure of molecules and photonic SOC and open an avenue to engineer complex photonic SOC by use of organic microstructures towards the development of diverse integrated photonic devices.</jats:p>}},
  author       = {{Ji, Ying and Ma, Xuekai and Huang, Han and Deng, Yibo and Wang, Pingyang and Long, Teng and Li, Yuan and Zhao, Ruiyang and Li, Yunfei and An, Cunbin and Schumacher, Stefan and Gu, Chunling and Liao, Bo and Fu, Hongbing and Liao, Qing}},
  issn         = {{1863-8880}},
  journal      = {{Laser &amp; Photonics Reviews}},
  publisher    = {{Wiley}},
  title        = {{{Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals}}},
  doi          = {{10.1002/lpor.202501874}},
  year         = {{2025}},
}