@article{64551,
  abstract     = {{<jats:p>Laterally coupled vertical-cavity surface-emitting lasers (VCSELs) can exhibit additional resonances at high modulation frequencies that can substantially increase the laser’s modulation bandwidth. State-of-the-art laterally coupled devices require non-standard manufacturing technology and precise tuning of the currents supplied to each cavity separately to form optical supermodes suitable for such resonances. Here, we report on a novel switching phenomenon in laterally coupled VCSEL structures having only a single common electric contact and manufactured in a standard oxide-confined VCSEL geometry. At lower currents, they can be operated in a weakly coupled (WCR) regime and, at higher currents, in an injection-locked (IL) regime, enabling fundamentally different spectral and dynamic features. In the WCR, both optical supermodes lase and a narrow tunable plasma-assisted peak at their beating frequency is observed for each of the apertures, with a current-dependent frequency tuning and anti-phase intensity oscillations in each of the cavities. In contrast, in the IL regimes, only one (anti-symmetric) supermode lases. This adds a broader resonance to the modulation response while the intensity oscillations in both cavities are in-phase. Only the IL regime can result in increased modulation bandwidth of the system. Measurements of the pulse responses and continuous modulation up to 70 GHz for both operational regimes are presented and compared with simulations of our distributed rate equation model whose parameters are extracted from full-wave electromagnetic simulations of the device, including the temperature distribution in the device. Excellent agreement is found and enables comprehensive understanding of the dynamics of supermodes in oxide-confined coupled cavity VCSELs.</jats:p>}},
  author       = {{Lindemann, M. and D’Alessandro, M. and Ledentsov, N. and Makarov, O. Y. and Ledentsov, N. N. and Tibaldi, A. and Gerhardt, Nils Christopher and Hofmann, M. R.}},
  issn         = {{0021-8979}},
  journal      = {{Journal of Applied Physics}},
  number       = {{5}},
  publisher    = {{AIP Publishing}},
  title        = {{{Laterally coupled vertical-cavity surface-emitting lasers with                    tunable resonance width and frequency}}},
  doi          = {{10.1063/5.0275622}},
  volume       = {{138}},
  year         = {{2025}},
}

@article{58163,
  abstract     = {{Fibre-reinforced polymers are increasingly used due to their high specific strength, making them suitable for local sheet metal reinforcement. This allows improved overall mechanical properties with reduced wall thickness of the sheet metal part and, thus, lower weight of the components. One of the main focuses of research into such hybrid structures is on the adhesive properties and the respective failure behaviour of the interfaces. Generally, the failure behaviour under the influence of mechanical loads can be divided into adhesive, cohesive and mixed-mode failure. The correlation between observed failure behaviour and adhesion properties of the hybrid composite materials is analysed in detail in this work. The hybrid composite consists of an aluminium sheet of the alloy EN AW‑6082 T6 and thermoset carbon fibre-reinforced plastic (CFRP) prepreg. The aluminium sheet was laser pretreated before hybrid production to improve the adhesion properties. The specimens studied were produced by the prepreg pressing process, in which the components are cured and joined simultaneously. The influences of the thickness of the CFRP part, the layup, the fibre orientation at the boundary layer, and the laser pretreatment parameters on the properties of the hybrid joints were investigated.}},
  author       = {{Wu, Shuang and Delp, Alexander and Freund, Jonathan and Walther, Frank and Haubrich, Jan and Löbbecke, Miriam and Tröster, Thomas}},
  issn         = {{0021-8464}},
  journal      = {{The Journal of Adhesion}},
  keywords     = {{Prepreg pressing process, hybrid joints, laser surface pretreatment, intrinsic manufacturing, CFRP, aluminium, materials engineering}},
  pages        = {{1--26}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Correlation between interlaminar shear strength of CFRP and joint strength of aluminium-CFRP hybrid joints}}},
  doi          = {{10.1080/00218464.2024.2439956}},
  year         = {{2025}},
}

@article{62727,
  abstract     = {{With the increasing amount of data in collaborative engineering research, the need for effective and efficient data management is growing. This paper uses a maturity-based process model to examine the implementation of research data management (RDM) in engineering projects. A process model visualizes a research-supported implementation of RDM and helps researchers evaluate their data management strategies through maturity level assessment. For this approach, activities are assigned to different maturity levels based on a maturity level characteristic providing a differentiated view of the implementation of RDM. An example from an ongoing project shows the application and support of the developed maturity-based process model. The work emphasizes the importance of standardized and quality-assured data management for the success of research projects and their contribution to the scientific community</jats:p>}},
  author       = {{Wawer, Max Leo and Müller, Laura and Khaled, Jaouhar Ben and Stauß, Timo and Wurst, Johanna and Mozgova, Iryna and Lachmayer, Roland}},
  issn         = {{2732-527X}},
  journal      = {{Proceedings of the Design Society}},
  pages        = {{169--178}},
  publisher    = {{Cambridge University Press (CUP)}},
  title        = {{{A maturity based data management integration in engineering research projects}}},
  doi          = {{10.1017/pds.2025.10031}},
  volume       = {{5}},
  year         = {{2025}},
}

@inproceedings{62728,
  author       = {{Müller, Laura and Hinterthaner, Marc and Ortlieb, Eduard and Mohnfeld, Norman and Schultz, Andreas Maximilian and Uhe, Johanna and Koepler, Oliver and Mozgova, Iryna}},
  booktitle    = {{IFIP Advances in Information and Communication Technology}},
  isbn         = {{9783032097033}},
  issn         = {{1868-4238}},
  pages        = {{140--150}},
  publisher    = {{Springer Nature Switzerland}},
  title        = {{{Getting Things Done: How to Make Simulation Data FAIR and Ready to Reuse}}},
  doi          = {{10.1007/978-3-032-09704-0_14}},
  year         = {{2025}},
}

@misc{63716,
  author       = {{Schultz, Andreas Maximilian and Mozgova, Iryna and Altun, Osman and Karras, Oliver and Koepler, Oliver and Müller, Laura and Nuenberger, Florian and Röwenstrunk, Daniel and Wawer, Max Leo}},
  publisher    = {{LibreCat University}},
  title        = {{{Strukturierte FDM-Plattformen: Aktuelle Lösungen und Herausforderungen in Informationsinfrastrukturprojekten}}},
  doi          = {{10.5281/ZENODO.17670597}},
  year         = {{2025}},
}

@inbook{64565,
  author       = {{Yang, Philip}},
  booktitle    = {{The Elgar Companion to Human Resource Management Beyond the Sustainable Development Goals}},
  editor       = {{Ina, Aust and Cooke, Fang Lee and Semeijn, Judith}},
  isbn         = {{9781035308729}},
  publisher    = {{Edward Elgar Publishing}},
  title        = {{{Quantitative research on SDGs and HRM}}},
  doi          = {{10.4337/9781035308729.00038}},
  year         = {{2025}},
}

@article{64567,
  author       = {{Ehmann, Stefanie and Kampkötter, Patrick and Maier, Patrick and Yang, Philip}},
  issn         = {{2195-8262}},
  journal      = {{Controlling & Management Review}},
  number       = {{5}},
  pages        = {{40--45}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Wie Performance Management das Engagement steigern kann}}},
  doi          = {{10.1007/s12176-025-1506-4}},
  volume       = {{69}},
  year         = {{2025}},
}

@misc{63746,
  author       = {{Binder, Karin and Vogel, Markus}},
  publisher    = {{LibreCat University}},
  title        = {{{Data Literacy im Wissenschaftsjournalismus – Facetten journalistischer Datenkompetenz und Fortbildungsbausteine zu deren Schulung}}},
  doi          = {{10.18716/OJS/MD/2025.2300}},
  year         = {{2025}},
}

@misc{63747,
  author       = {{Rößner, Michael and Binder, Karin and Ufer, Stefan}},
  publisher    = {{LibreCat University}},
  title        = {{{Simulationsbasiert Signifikanztests verstehen}}},
  doi          = {{10.18716/OJS/MD/2025.2296}},
  year         = {{2025}},
}

@article{64582,
  author       = {{Brennecken, Dominik}},
  issn         = {{0019-3577}},
  journal      = {{Indagationes Mathematicae}},
  number       = {{6}},
  pages        = {{1717--1744}},
  publisher    = {{Elsevier BV}},
  title        = {{{Boundedness of the Cherednik kernel and its limit transition from type BC to type A}}},
  doi          = {{10.1016/j.indag.2025.04.004}},
  volume       = {{36}},
  year         = {{2025}},
}

@inproceedings{60623,
  author       = {{Hermelingmeier, Lucas and Teutenberg, Dominik and Meschut, Gerson}},
  location     = {{Porto, Portugal}},
  title        = {{{Application of distributed fiber optic sensing for defect detection in adhesive bonds}}},
  year         = {{2025}},
}

@article{62005,
  author       = {{Böhm, Yannic and Kappe, Fabian and Han, Daxin and Nordmann, Elmar and Yang, Keke and Jendrny, Jörg and Gorr, Eugen and Meschut, Gerson}},
  issn         = {{1526-6125}},
  journal      = {{Journal of Manufacturing Processes}},
  pages        = {{171--184}},
  publisher    = {{Elsevier BV}},
  title        = {{{Single-step self-punching lockbolt process and equipment development for pre-hole-free joining of aluminum sheets using a dual-die system}}},
  doi          = {{10.1016/j.jmapro.2025.10.027}},
  volume       = {{155}},
  year         = {{2025}},
}

@book{63411,
  author       = {{Meschut, Gerson and Yang, Keke and Rethmeier, Michael and El-Sari, Bassel}},
  isbn         = {{978-3-96780-219-1}},
  title        = {{{Entwicklung eines methodischen Ansatzes zur Vermeidung der Spritzerbildung beim Widerstandspunktschweißen durch multiparametrische Prozessanalyse mittels künstlicher Intelligenz}}},
  year         = {{2025}},
}

@inproceedings{58878,
  author       = {{Buczek, Moritz and Duffe, Tobias and Kullmer, Gunter and Tews, Karina and Teutenberg, Dominik and Meschut, Gerson}},
  booktitle    = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
  location     = {{Köln}},
  title        = {{{Bruchmechanisches Schnittebenenkonzept zur lebensdauergerechten Auslegung von hyperelastischen Klebverbindungen bei multiaxialen und variablen Belastungsamplituden}}},
  year         = {{2025}},
}

@inproceedings{58843,
  author       = {{Beule, Felix and Teutenberg, Dominik and Meschut, Gerson}},
  booktitle    = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
  location     = {{Köln}},
  title        = {{{Berücksichtigung des Einflusses fertigungsinduzierter Vorverformungen warmaushärtender Klebstoffe auf die Schwingfestigkeit geklebter Verbindungen}}},
  year         = {{2025}},
}

@inproceedings{58844,
  author       = {{Schmelzle, Lars and Beule, Felix and Possart, Gunnar and Teutenberg, Dominik and Mergheim, Julia and Meschut, Gerson}},
  booktitle    = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
  location     = {{Köln}},
  title        = {{{Methodenentwicklung zur Simulation von hyperelastischen Klebverbindungen unter Crashbelastung}}},
  year         = {{2025}},
}

@inproceedings{60615,
  author       = {{Hermelingmeier, Lucas and Teutenberg, Dominik and Meschut, Gerson}},
  booktitle    = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
  title        = {{{Methodenentwicklung zur Ermittlung lokaler Klebschichtzustände innerhalb struktureller Verbindungen}}},
  year         = {{2025}},
}

@inproceedings{64588,
  author       = {{Neubert, Fynn Lucas and Teutenberg, Dominik and Meschut, Gerson and Rodschei, Maxim and Mergheim, Julia}},
  booktitle    = {{25. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
  location     = {{Köln}},
  title        = {{{Experimentelle und numerische Untersuchungen zur Alterung von Klebverbindungen unter zyklischer und hygrothermischer Beanspruchung im Stahl- und Anlagenbau}}},
  year         = {{2025}},
}

@article{64591,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>Graph states are a fundamental class of multipartite entangled quantum states with wide-ranging applications in quantum information and computation. In this work, we develop a systematic approach for constructing and analyzing <jats:italic>χ</jats:italic>-colorable graph states, deriving explicit closed-form expressions for arbitrary <jats:italic>χ</jats:italic>. For a broad family of two- and three-colorable graph states, the representations obtained using only local operations require a minimal number of terms in the <jats:italic>Z</jats:italic>-eigenbasis. We prove that every two-colorable graph state is local Clifford (LC) equivalent to a state expressible as a summation of rows of an orthogonal array (OA). For graph states with <jats:italic>χ</jats:italic> &gt; 2, we show that they are LC-equivalent to quantum OAs, establishing a direct combinatorial connection between multipartite entanglement and structured quantum states. Furthermore, the upper and lower bounds of the Schmidt measure for graph states with arbitrary <jats:italic>χ</jats:italic> colorability are discussed, extending the results for an arbitrary local dimension. Our results offer an efficient and practical method for systematically constructing graph states, optimizing their representation in quantum circuits, and identifying structured forms of multipartite entanglement. This approach also connects graph states to <jats:italic>k</jats:italic>-uniform and absolutely maximally entangled states, motivating further exploration of the structure of entangled states and their applications in quantum networks, quantum error correction, and measurement based quantum computing.</jats:p>}},
  author       = {{Revis, Konstantinos-Rafail and Zakaryan, Hrachya and Raissi, Zahra}},
  issn         = {{1751-8113}},
  journal      = {{Journal of Physics A: Mathematical and Theoretical}},
  number       = {{35}},
  publisher    = {{IOP Publishing}},
  title        = {{{<i>χ</i>-colorable graph states: closed-form expressions and quantum orthogonal arrays}}},
  doi          = {{10.1088/1751-8121/adfe45}},
  volume       = {{58}},
  year         = {{2025}},
}

@article{63076,
  abstract     = {{This paper develops a new concept and framework for understanding resilient digital democracy in an age defined by polarisation, cascading crises, and the global rise of digital authoritarianism. It begins by tracing the concept of resilience from systems theory to social and political life, showing that resilience in democracy is not a mechanical property of systems but a dynamic, human-driven practice grounded in agency, resistance, and collective self-determination. The paper argues that with emerging challenges in the digital sphere, such as misinformation, surveillance capitalism, platform monopolies, deepfakes, and hybrid warfare, democracy can only endure if its digital dimensions are protected and transformed. Building on this foundation, the paper introduces a holistic approach to resilient digital democracy that spans environmental, technological, economic, political, and cultural domains, and advances strategies such as public-commons digital infrastructures, platform co-operatives, public service Internet platforms, free/libre open source software (FLOSS), participatory innovations, and hybrid offline/online democratic practices. The result is a fresh, interdisciplinary vision of how democracy can be reinvented in the digital age.}},
  author       = {{Fuchs, Christian}},
  issn         = {{2732-5121}},
  journal      = {{Open Research Europe}},
  publisher    = {{F1000 Research Ltd}},
  title        = {{{What is and how do we Achieve a Resilient Digital Democracy?}}},
  doi          = {{10.12688/openreseurope.21988.2}},
  volume       = {{5}},
  year         = {{2025}},
}